METHOD FOR PRODUCING GRAFT MATERIAL FOR TREATING NERVE DAMAGE

Abstract
An object of the present invention is to provide a method for efficiently and reproducibly producing a graft material having a high recovery effect on dysfunction caused by nerve damage. The present invention provides a method for producing a graft material for treating nerve damage, including a step of culturing a dental pulp stem cell in a medium substantially containing no growth factors except FGF2, and others.
Description
TECHNICAL FIELD

The present invention relates to a method for producing a graft material for treating nerve damage by using a dental pulp stem cell, and others.


BACKGROUND ART

The spinal cord is a path for transmitting kinetic and perceptual information between peripheral tissues and the brain. Injury of the spinal cord causes a severe physical disability such as motor paralysis and perceptual disorder. Neither effective treatment for this nor partial functional reconstruction is expected. In recent years, studies have been aggressively promoted worldwide; however a fundamental therapy has not yet been developed.


In this country, there are about 100,000 patients with spinal cord injury and about 5,000 patients have newly been injured per year. There are peaks of the number of patients at around 20 years old and around 60 years old. Spinal cord injury is caused by accidents during driving and sporting activities mainly in middle aged persons and caused by spinal fracture by application of minor impact in elderly persons, and others. A functional loss of a body is rarely recovered and the patients thereafter live a significantly limited life.


It has recently been reported that dysmobility in rats caused by spinal cord injury is significantly recovered when human dental pulp stem cells were grafted (Non Patent Literature 1). However, it is still desired to develop a method for treating nerve damage with higher reproducibility and higher recovery effect.


CITATION LIST
Non Patent Literature

Non Patent Literature 1: Sakai K. et al., J Clin Invest 122: 80-90


SUMMARY OF INVENTION
Technical Problem

An object of the present invention is to provide a method for efficiently and reproducibly producing a graft material having a high recovery effect on dysfunction caused by nerve damage.


Solution to Problem

The present inventors have intensively conducted studies with a view to attaining the above object. As a result, they found that if dental pulp stem cells are cultured in a conventional medium supplemented with FGF2 at a relatively high concentration and the resultant culture is grafted to a model with spinal cord injury, the effect of recovering motor function significantly improved compared to the conventional methods; and that the recovery effect can be obtained with good reproducibility if dental pulp stem cells having a predetermined gene expression pattern are used. Based on the findings, they accomplished the present invention.


More specifically, the present invention relates to

  • [1] A method for producing a graft material for treating nerve damage, comprising


a step of culturing a dental pulp stem cell in a medium substantially containing no growth factors except FGF2,

  • [2] The method according to above [1], wherein the medium substantially containing no growth factors except FGF2 is a serum-containing base medium supplemented with FGF2 alone as a growth factor,
  • [3] The method according to above [2], wherein the serum in the medium has a concentration of less than 15 wt %,
  • [4] The method according to above [1], wherein the medium substantially containing no growth factors except FGF2 is a commercially available medium for culturing mesenchymal stem cells supplemented with FGF2 alone as a growth factor,
  • [5] The method according to any one of above [1] to [4], wherein FGF2 in the medium has a concentration of 5 ng/mL or more,
  • [6] The method according to above [5], wherein FGF2 in the medium has a concentration of 7 ng/mL or more,
  • [7] The method according to any one of above [1] to [6], wherein the dental pulp stem cell used is a dental pulp stem cell, in which the expression level of 10% or more of genes in the group of genes listed in Table 1 is 5 times or more as high as an average expression level of the genes in dental pulp stem cells,
  • [8] The method according to any one of above [1] to [7], wherein the dental pulp stem cell used is a dental pulp stem cell, in which the expression level of at least one gene selected from the group consisting of MYO1G, RBMY2FP, FILIP1, C1orf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg and Cbln2 is 5 times or more as high as an average expression level of genes in dental pulp stem cells,
  • [9] The method according to any one of above [1] to [8], wherein the dental pulp stem cell used is a dental pulp stem cell, in which the expression level of 10% or more of genes in the group of genes listed in Table 2 is 5 times or more as low as an average expression level of the genes in dental pulp stem cells,
  • [10] The method according to any one of above [1] to [9], wherein the dental pulp stem cell used is a dental pulp stem cell, in which the expression level of at least one gene selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sult1c4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2 and HTATSF1P2 is 5 times or more as low as an average expression level of genes in dental pulp stem cells,
  • [11] The method according to any one of above [1] to [6], wherein among two or more groups of dental pulp stem cells, a group of dental pulp stem cells in which the expression level of 10% or more of genes in the group of genes listed in Table 1 is 5 times or more as high as other groups of cells, is selected as the dental pulp stem cell to be used,
  • [12] The method according to any one of above [1] to [6] and [11], wherein among two or more groups of dental pulp stem cells, a dental pulp stem cell in which the expression level of at least one gene selected from the group consisting of MYO1G, RBMY2FP, FILIP1, C1orf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg and Cbln2 is 5 times or more as high as other groups of cells, is selected as the dental pulp stem cell to be used,
  • [13] The method according to any one of above [1] to [6], and [11] and [12], wherein among two or more groups of dental pulp stem cells, a dental pulp stem cell in which the expression level of 10% or more of genes in the group of genes listed in Table 2 is 5 times or more as low as other groups of cells, is selected as the dental pulp stem cell to be used,
  • [14] The method according to any one of above [1] to [6] and [11] to [13], wherein among two or more groups of dental pulp stem cells, a dental pulp stem cell in which the expression level of at least one gene selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sult1c4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2 and HTATSF1P2 is 5 times or more as low as other groups of cells, is selected as the dental pulp stem cell to be used,
  • [15] The method according to any one of above [1] to [14], wherein the nerve damage is spinal cord injury, cerebral infarction, intracerebral hemorrhage, subarachnoid hemorrhage, spinal hemorrhage, compression injury of nerve caused by disk herniation, sciatic nerve pain or peripheral nerve damage caused by diabetes,
  • [16] A graft material for treating nerve damage, comprising a dental pulp stem cell, and a medium substantially containing no growth factors except FGF2,
  • [17] The graft material for treating nerve damage according to above [16], wherein the medium substantially containing no growth factors except FGF2 is a serum-containing base medium supplemented with FGF2 alone as a growth factor,
  • [18] The graft material for treating nerve damage according to above [17], wherein the medium substantially containing no growth factors except FGF2 is a commercially available medium for culturing mesenchymal stem cells supplemented with FGF2 alone as a growth factor,
  • [19] The graft material for treating nerve damage according to any one of above [16] to [18], wherein the dental pulp stem cell is a dental pulp stem cell in which the expression level of 10% or more of genes in the group of genes listed in Table 1 is 5 times or more as high as an average expression level of genes of dental pulp stem cells,
  • [20] The graft material for treating nerve damage according to any one of above [16] to [19], wherein the dental pulp stem cell used is a dental pulp stem cell in which the expression level of at least one gene selected from the group consisting of MYO1G, RBMY2FP, FILIP1, C1orf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg and Cbln2 is 5 times or more as high as an average expression level of genes of dental pulp stem cells,
  • [21] The graft material for treating nerve damage according to any one of above [16] to [20], wherein the dental pulp stem cell used is a dental pulp stem cell in which the expression level of 10% or more of genes in the group of genes listed in Table 2 is 5 times or more as low as an average expression level of genes of dental pulp stem cells,
  • [22] The graft material for treating nerve damage according to any one of above [16] to [21], wherein the dental pulp stem cell used is a dental pulp stem cell in which the expression level of at least one gene selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sult1c4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2 and HTATSF1P2 is 5 times or more as low as an average of dental pulp stem cells,
  • [23] The graft material for treating nerve damage according to any one of above [16] to [22], wherein the nerve damage is spinal cord injury, cerebral infarction, intracerebral hemorrhage, subarachnoid hemorrhage, spinal hemorrhage, compression injury of nerve caused by disk herniation, sciatic nerve pain or peripheral nerve damage caused by diabetes,
  • [24] A method for treating nerve damage, comprising


a step of grafting a graft material for treating nerve damage produced by the method according any one of above [1] to [15] or the graft material for treating nerve damage according to any one of [16] to [23] to an area of nerve damage,

  • [25] The method according to above [24], wherein the nerve damage is spinal cord injury, cerebral infarction, intracerebral hemorrhage, subarachnoid hemorrhage, spinal hemorrhage, compression injury of nerve caused by disk herniation, sciatic nerve pain or peripheral nerve damage caused by diabetes,
  • [26] A kit for producing a graft material for treating nerve damage, comprising a medium and FGF2, and
  • [27] A method for selecting a material for a graft material for treating nerve damage from a plurality of groups of dental pulp stem cells, comprising selecting a dental pulp stem cell having at least one of the following properties (i) to (iv):


(i) the expression level of 10% or more of genes in the group of genes listed in Table 1 is 5 times or more as high as other groups of cells,


(ii) the expression level of at least one gene selected from the group consisting of MYO1G, RBMY2FP, FILIP1, C1orf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg and Cbln2 is 5 times or more as high as other groups of cells,


(iii) the expression level of 10% or more of genes in the group of genes listed in Table 2 is 5 times or more as low as other groups of cells, and


(iv) the expression level of at least one gene selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sult1c4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2 and HTATSF1P2 is 5 times or more as low as other groups of cells.


Advantageous Effects of Invention

The graft material for treating nerve damage according to the present invention can be obtained in a simple method by adding FGF2 to a medium for culturing a dental pulp stem cell, and can provide a high motor function recovery effect by grafting the material.


The dental pulp stem cells, which is waste obtained from younger persons in a large amount and can be cryopreserved for a long term, are easily obtained. If the dental pulp stem cells derived from a person himself are used, a problem of immune rejection associated with grafting rarely occurs. Because dental pulp stem cells are tissue stem cells, growth of the cells is limited and thus a risk of cancerization is conceivably low compared to pluripotent stem cells.





BRIEF DESCRIPTION OF DRAWINGS


FIG. 1 is a graph showing the measurement results of motor function recovery based on BBB score when a graft material obtained by culture in a medium substantially containing no growth factors except FGF2 (DP31F), a graft material (DP310) produced by a conventional method, and a control graft material (control) were grafted to rat models with total amputation of spinal cord.



FIG. 2 is a graph showing the measurement results of motor function recovery based on BBB score when a graft material obtained by culture in a medium substantially containing no FGF2 (DP31S), a graft material obtained by culture in a medium substantially containing no growth factors except FGF2 (DP31F) and a control graft material (control) were grafted to rat models with total amputation of spinal cord



FIG. 3 is a graph showing the measurement results of motor function recovery based on BBB score when graft materials obtained by culture in a medium substantially containing no growth factors except FGF2 (DP31F, DP74F, DP264F) to rat models with total amputation of spinal cord.





DESCRIPTION OF EMBODIMENTS
[Method for Producing Graft Material for Treating Nerve Damage]

An embodiment of the method for producing a graft material for treating nerve damage according to the present invention includes a step of culturing a dental pulp stem cell in a medium substantially containing no growth factors except FGF2.


In the specification, the “dental pulp stem cell” refers to a kind of tissue stem cell that can be isolated from the dental pulp. The tissue stem cell is also called as a somatic stem cell. Compared to an embryonic stem cell capable of differentiating into any types of cells, the tissue stem cell can be differentiated into limited types of cells.


The dental pulp stem cell can be collected from either one of a baby tooth and a permanent tooth and can be obtained from the dental pulp of an evulsion tooth such as a wisdom tooth and a baby tooth, which have been treated as medical waste. The dental pulp stem cell can be prepared and stored in accordance with methods known to those skilled in the art (for example, Takeda, T. et al.: J. Dent. Res., 87: 676-681, 2008; Tamaoki et al., J Dent Res. 2010 89: 773-778).


The dental pulp stem cell is a mesenchymal stem cell present in the hard tissue, similarly to the bone marrow mesenchymal stem cell, and can be subcultured in the same manner as in the bone marrow mesenchymal stem cell (for example, the method described in “Experimental Medicine, additional volume, Revised Cultured Cell Experiment Handbook, Chapter 8, Human Bone Marrow Mesenchymal Stem Cell”, published Jan. 1, 2009 (Yodosya)); however, the dental pulp stem cell has a long cellular division span and is not differentiated into a fat cell. Likewise, the dental pulp stem cell has different features from the stem cell isolated from the bone marrow.


The dental pulp stem cell is easily obtained and a culture method and a storage method for them are established, as described above. For the reasons, it has been expected to use the dental pulp stem cell as a base of a graft material for regenerative medicine. The dental pulp stem cells are collected from an evulsion tooth, after that, if necessary, proliferated by culturing to a predetermined amount. Since dental pulp stem cells can be cryopreserved for a long time, if dental pulp stem cells are isolated from many people and stored, a dental pulp stem cell bank can be formed.


The dental pulp stem cell is characterized by, for example, surface antigen STRO-1. Other than this, the dental pulp stem cell can be distinguished by a neural crest cell marker such as Nestin, SOX10 and SOX11 used as an index.


The dental pulp stem cell is known to have a high proliferation potency, compared to a bone marrow mesenchymal stem cell. It is also known that if the dental pulp stem cell is grafted together with calcium phosphate or hydroxyapatite to a mouse, dentin is formed.


In the method for producing a graft material for treating nerve damage according to the present invention, cells derived from a recipient of grafting or cells derived from a person except the recipient may be used. For example, dental pulp stem cells are isolated from e.g., a baby tooth or a wisdom tooth of a recipient of grafting, cultured and cryopreserved, and then, thawed at the time of need and used. Alternatively, a dental pulp stem cell having an identical human leukocyte antigen (HLA) with that of a recipient of grafting may be selected from the dental pulp stem cell bank and used for producing a graft material for treating nerve damage.


In the specification, the “nerve damage” refers to a damage in the central nerve and the peripheral nerve. Examples thereof include, but are not limited to, spinal cord injury, cerebral infarction, intracerebral hemorrhage, subarachnoid hemorrhage, spinal hemorrhage, compression injury of nerve caused by disk herniation, sciatic nerve pain or peripheral nerve damage caused by diabetes. The graft material of the present invention can be applied to any nerve damages as long as a therapeutic effect can be obtained by grafting. The therapeutic effect refers to an effect of curing a disease; however, the therapeutic effect is not limited to this and includes an effect of improving at least one symptom associated with a disease and an effect of inhibiting or delaying progression of a disease,and others.


In the specification, the graft recipient is not limited to humans and may include other mammals (for example, mice, rats, rabbits, dogs, cats, monkeys, sheep, cows, horses).


In the method for producing a graft material for treating nerve damage according to the present invention, a dental pulp stem cell is cultured in a medium substantially containing no growth factors except FGF2.


In the specification, the “medium substantially containing no growth factors except FGF2” means that the growth factor to be purposely added is FGF2 alone. Examples of such a medium include a serum-containing base medium supplemented with FGF2 alone as a growth factor; a serum-free base medium supplemented with FGF2 alone as a growth factor; a serum-containing base medium supplemented with FGF2 alone as a growth factor; a medium commercially available for culturing mesenchymal stem cells supplemented with FGF2 alone as a growth factor; and a medium commercially available for culturing mesenchymal stem cells supplemented with FGF2 alone as a growth factor.


In the specification, the “base medium” refers to a medium containing known low molecular-weight components alone. Non-limiting examples of the base medium known in the art include Eagle mediums such as BME (Basal medium Eagle's), MEM (Minimum essential medium) and DMEM (Dulbecco's modified Eagle's medium); RPMI (Roswell Park Memorial Institute) mediums such as RPMI1630 and RPMI1640; Fischer's medium, Ham's mediums such as F10 medium and F12 medium, MCDB mediums such as MCDB104, 107, 131, 151, 153, 170 and 202; and RITC80-7 medium. The base medium can be appropriately selected from these.


In the specification, “the serum” refers to the supernatant obtained by clotting blood, more specifically, refers to blood from which cell components and coagulation proteins are removed. The serum to be used in the present invention may be derived from any animal. Examples thereof include human serum, fetal calf serum and horse serum. When a graft material for treatment according to the present invention is grafted to a human, human serum is preferable.


Since the serum contains various growth factors, the “serum-containing base medium” basically contains such growth factors. However, a medium containing growth factors except FGF2 at the levels equivalent to those of the serum is defined to be the “medium substantially containing no growth factors except FGF2” in the specification. The concentration of the serum in the medium is preferably e.g., less than 15 wt %, less than 13 wt %, less than 10 wt %, less than 8 wt % or less than 5 wt %.


In the specification, the “growth factor” refers to any type of protein called a growth factor or a proliferative factor. Examples thereof include epidermal growth factor (EGF), fibroblast growth factor (FGF), acid fibroblast growth factor (aFGF or FGF1), basic fibroblast growth factor (bFGF or FGF2), platelet-derived growth factor (PDGF), nerve growth factor (NGF), insulin-like growth factor (IGF), hepatocyte growth factor (HGF), transforming growth factor (TGF), vascular endothelial growth factor (VEGF) and keratinocyte growth factor (KGF) interleukins, and others.


In the specification, the “medium commercially available for culturing mesenchymal stem cells” refers to a commercially available medium for culturing and proliferating mesenchymal stem cells while maintaining a differentiation potency and not inducing differentiation. Examples thereof include, but are not limited to, MSCGM medium (LONZA), mesenchymal stem cell growth medium (Takara Bio Inc.), mesenchymal stem cell growth medium DXF (Takara Bio Inc.), StemLine (registered trade mark) mesenchymal stem cell growth medium (Sigma-Aldrich), MF-medium (trade mark) mesenchymal stem cell growth medium (Toyobo Life Science), BD Mosaic (trade mark) and a serum-free culture kit for human mesenchymal stem cells (BD BIOSCIENCES). Since some of these commercially available mediums contain secret components and low-level serum, mediums occasionally contain various growth factors; however, as long as the growth factor to be purposely added to these mediums is FGF2 alone, these mediums correspond to the “medium substantially containing no growth factors except FGF2” of the present invention. In this case, the level of the serum is preferably less than 15%, less than 13%, less than 10%, less than 8% or less than 5%.


In the specification, FGF2 refers to a basic fibroblast growth factor (FGF) and also referred to as bFGF or HBGF-2.


FGF2 used herein can be prepared by appropriately diluting a commercially available FGF2. Since FGF2 is to be used in a graft material, FGF2 is filtered by an appropriate membrane and preferably confirmed to be negative to e.g., bacteria, fungi and mycoplasma. The concentration of FGF2 is not particularly limited as long as the resultant graft material has a sufficient spinal cord injury therapeutic effect; however, the concentration can be specified as, for example, 5 ng/mL or more or 7 ng/mL or more.


In the specification, the “medium supplemented with FGF2 alone as a growth factor” may contain e.g., other proteins as long as a growth factor except FGF2 is not added.


Examples of the substance to be added to the medium include hormones such as insulin, glucagon, prolactin, thyroxine, growth hormone, follicle stimulating hormone (FSH), luteinizing hormone (LH), thyroid hormone, estradiol and glucocorticoid; binding proteins such as ceruloplasmin, transferrin and lipoprotein; cell adhesion factors such as collagen, fibronectin, laminin and vitronectin; lipids such as prostaglandins, phospholipids and unsaturated fatty acids; and various low molecular-weight compounds. These can be used singly or in arbitrary combination. The concentrations of these substances may be appropriately selected by those skilled in the art.


To the medium to be used in the method for producing a graft material for treating spinal cord injury according to the present invention, other substances useful for culturing cells can be appropriately added. Examples of the substances include, but are not limited to, a buffer for stabilizing pH (e.g., HEPES), phenol red serving as a pH indicator, antibiotic substances (e.g., penicillin G, streptomycin, amphotericin B, gentamicin, kanamycin, ampicillin, minocycline, gentashin), amino acids, vitamins, lipids, carbohydrates, nucleic acids, inorganic salts, organic acid salts and minerals, and others.


The medium to be used in the method for producing a graft material for treating spinal cord injury according to the present invention can be prepared by dissolving requisite components in water, a buffer or a commercially available medium.


As the water to be used for preparing the medium, ultra-pure water compatible to pure water for injection is desirably used.


The medium is also aseptically prepared in a high-standard clean room or a clean bench and dispensed through a sterile filter having a pore size of 0.1 μm or less and capable of removing mycoplasma.


The storage container of the medium is preferably a plastic container made of e.g., a poly (ethylene terephthalate) co-polymer rather than a glass container, since proteins are likely to adsorb to the inner wall of the glass container.


The medium prepared may be subjected to various quality evaluation tests (such as physical property tests including measurement of e.g., pH and osmotic pressure; microorganism tests for examining contamination with e.g., bacteria, fungi and mycoplasma; virus tests for examining contamination with e.g., hepatitis virus and HIV; measurement for endotoxin level; and tests for biological activities such as cell proliferation and physiological function).


In the method for producing a graft material for treating nerve damage according to the present invention, it is preferable that a dental pulp stem cell is also subcultured in the aforementioned medium, twice, 3 times, 4 times, 5 times or 6 times or more.


The culture method is not particularly limited as long as culture is carried out in a medium substantially containing no growth factors except FGF2. Various conditions (such as temperature, humidity, CO2 concentration, pH, frequency of exchanging medium) can be selected by those skilled in the art depending on the type of cell to be cultured.


The culture period can be appropriately determined by those skilled in the art depending upon the type of cell and the composition of the medium. For example, whether cells reach the state suitable for grafting may be determined based on the shape of the cells and the proliferation rate thereof by those skilled in the art. As the state suitable for grafting, for example, the state where the shape of a cell changed into a thin and long shape and the state where cell proliferation speed decreases may be mentioned, but not limited to these states.


In the method for producing a graft material for treating nerve damage according to the present invention, cells may be cultured by any method such as a single layer stationary culture, a rotary culture, a microcarrier culture, a suspension culture, a gyratory culture, a spheroid culture, a culture within gel and a culture by a three-dimensional carrier.


The single layer stationary culture is a method of culturing cells of a single layer by attaching the cells on the wall of a culture container. A glass or plastic culture container may be used. As the plastic, a plastic whose surface has been treated to be appropriately hydrophilic, can be used. Depending upon the type of cell and the purpose of an experiment, the plastic may be coated with an extracellular matrix such as collagen, gelatin, laminin, fibronectin and matrigel. As the coating material, collagen crosslinked by UV irradiation and gelatin obtained by treating collagen with heat can be used.


The rotatory culture is a culture method by placing a culture container in a rotatory metal drum. Large scale culture can be made if e.g., a bottle type culture container is used.


The microcarrier culture is a culture method using carriers like beads. More specifically, cells are allowed to adhere to the surface of the beads and culture is made by stirring a medium containing the beads and suspending them. This method is suitable for large-scale culture.


The suspension culture is a method of culturing cells while suspending the cells in a medium. Adhesive cells may be forcibly suspended by stirring the medium and cultured. A large amount of cells can be collected compared to the single layer culture.


The gyratory culture refers to a culture method by horizontally rotating a culture container. This is used as one of the suspension cultures and also used for forming spheroids taking advantage of a nature: suspended solids assemble to the center by gyration.


The spheroid culture is a method for forming spheroids through mutual adhesion of cells by suspending cells such that the cells are in loose contact with each other. Many of the cells obtained by the spheroid culture highly express function.


The culture within gel is a method of culturing cells by embedding the cells within e.g., collagen gel, soft agar or synthetic polymer gel and suitable for three-dimensional culture.


The three-dimensional carrier culture is a culture method using a carrier so as to three-dimensionally proliferating cells at a high density in order to enhance expression of function of cultured cells. As the carrier, a porous polymer and beads are generally used. To facilitate nutrition and gas exchange of cells densely present, a circulation system by a bioreactor is employed.


The method for producing a graft material for treating nerve damage according to the present invention may include, in addition to the aforementioned culture step, various steps appropriate for producing a graft material. For example, a step of controlling flowability of the culture obtained in the culture step by mixing the culture with a highly viscose substance such as hyaluronic acid, collagen gel, fibrinogen, soft agar and a synthetic polymer, may be carried out. By appropriately controlling flowability, a graft material can be settled at a damage site.


After mixing with gel such as collagen gel, soft agar or a synthetic polymer, culture is performed in a certain period of time and then a three-dimensional culture may be performed.


The dental pulp stem cell to be used for producing a graft material for treating nerve damage according to the specification may be a dental pulp stem cell in which the expression level of the group of genes listed in Table 1 is high compared to the average expression level of genes in dental pulp stem cells.


In the specification, the “dental pulp stem cell, in which the expression level of the group of genes listed in Table 1 is high compared to the average expression level of genes in dental pulp stem cells” refers to a dental pulp stem cell satisfying the following condition: when gene expression pattern was checked with respect to expression of the group of genes described in Table 1, the expression levels of 10% or more, 15% or more, 20% or more, 25% or more, 30% or more, 35% or more, 40% or more, 45% or more, 50% or more, 55% or more, 60% or more, 65% or more, 70% or more, 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, or 98% or more of genes, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as high as the average in dental pulp stem cells.


In the specification, the “average expression level of genes in dental pulp stem cells” refers to an average of expression levels of genes in an arbitrary number (two or more) of dental pulp stem cells.











TABLE 1







Times


GeneSymbol
Explanation [Genbank Accession Number]
(DP31/DP264)

















ABCA6

Homo sapiens ATP-binding cassette, sub-family A (ABC1), member 6 (ABCA6), mRNA [NM_080284]

5.0137186


ACVR1C

Homo sapiens activin A receptor, type IC (ACVR1C), transcript variant 1, mRNA [NM_145259]

13.918116


ADAM20

Homo sapiens ADAM metallopeptidase domain 20 (ADAM20), mRNA [NM_003814]

66.42648


ADAMTS19

Homo sapiens ADAM metallopeptidase with thrombospondin type 1 motif, 19 (ADAMTS19), mRNA

8.167267



[NM_133638]



ADORA1

Homo sapiens adenosine A1 receptor (ADORA1), transcript variant 1, mRNA [NM_000674]

6.0168715


AGTR1

Homo sapiens mRNA for angiotensin II type 1b receptor, complete cds, [D13814]

41.855778


ALDH3A1

Homo sapiens aldehyde dehydrogenase 3 family, member A1 (ALDH3A1), transcript variant 2, mRNA

9.322075



[NM_000691]



ALDH5A1

Homo sapiens aldehyde dehydrogenase 5 family, member A1 (ALDH5A1), nuclear gene encoding

7.077404



mitochondrial protein, transcript variant 1, mRNA [NM_170740]



ANKRD30A

Homo sapiens ankyrin repeat domain 30A (ANKRD30A), mRNA [NM_052997]

11.803563


ANXA8L2
annexin A8-like 2 [Source: HGNC Symbol; Acc: 23335] [ENST00000340243]
9.319177


APBB1IP

Homo sapiens amyloid beta (A4) precursor protein-binding, family B, member 1 interacting protein

6.3065367



(APBB1IP), mRNA [NM_019043]



APBB1IP

Homo sapiens amyloid beta (A4) precursor protein-binding, family B, member 1 interacting protein

6.6869807



(APBB1IP), mRNA [NM_019043]



APBB1IP

Homo sapiens amyloid beta (A4) precursor protein-binding, family B, member 1 interacting protein

20.242624



(APBB1IP), mRNA [NM_019043]



APOA4

Homo sapiens apolipoprotein A-IV (APOA4), mRNA [NM_000482]

11.783757


APOBR

Homo sapiens apolipoprotein B receptor (APOBR), mRNA [NM_018690]

26.163698


AREG

Homo sapiens amphiregulin (AREG), mRNA [NM_001657]

6.356535


ARHGAP20

Homo sapiens Rho GTPase activating protein 20 (ARHGAP20), mRNA [NM_020809]

8.251349


ARHGAP28

Homo sapiens Rho GTPase activating protein 28 (ARHGAP28), mRNA [NM_001010000]

5.581529


ASZ1

Homo sapiens ankyrin repeat, SAM and basic leucine zipper domain containing 1 (ASZ1), transcript variant

5.8410993



1, mRNA [NM_130768]



ATG9B

Homo sapiens ATG9 autophagy related 9 homolog B (S. cerevisiae) (ATG9B), mRNA [NM_173681]

5.327448


ATP6V1B1

Homo sapiens ATPase, H+ transporting, lysosomal 56/58 kDa, V1 subunit B1 (ATP6V1B1), mRNA

13.998029



[NM_001692]



ATPBD4

Homo sapiens ATP binding domain 4 (ATPBD4), transcript variant 1, mRNA [NM_080650]

5.216696


AVPR1A

Homo sapiens arginine vasopressin receptor 1A (AVPR1A), mRNA [NM_000706]

5.8251414


AVPR2

Homo sapiens arginine vasopressin receptor 2 (AVPR2), transcript variant 1, mRNA [NM_000054]

5.093321


BANF2

Homo sapiens barrier to autointegration factor 2 (BANF2), transcript variant 2, mRNA [NM_001014977]

6.488925


BATE

Homo sapiens basic leucine zipper transcription factor, ATF-like (BATE), mRNA [NM_006399]

9.837393


BHLHE22

Homo sapiens basic helix-loop-helix family, member e22 (BHLHE22), mRNA [NM_152414]

13.069403


C10orf82

Homo sapiens chromosome 10 open reading frame 82 (C10orf82), mRNA [NM_144661]

12.051886


C11orf96

Homo sapiens chromosome 11 open reading frame 96 (C11orf96), mRNA [NM_001145033]

7.144934


C12orf53

Homo sapiens chromosome 12 open reading frame 53 (C12orf53), transcript variant 1, mRNA [NM_153685]

50.230335


C14orf129

Homo sapiens chromosome 14 open reading frame 129 (C14orf129), mRNA [NM_016472]

5.886228


C17orf81

Homo sapiens chromosome 17 open reading frame 81 (C17orF81), transcript variant 3, mRNA

6.2237744



[NM_203414]



C1orf162

Homo sapiens chromosome 1 open reading frame 162 (C1orf162), mRNA [NM_174896]

9.743706


C1orf226

Homo sapiens chromosome 1 open reading frame 226 (C1orf226), transcript variant 2, mRNA

6.454425



[NM_001085375]



C1orf64

Homo sapiens chromosome 1 open reading frame 64 (C1orF64), mRNA [NM_178840]

45.61271


C1orf81

Homo sapiens C1orf81 mRNA, partial seauence, [DQ983818]

8.118939


C20orf103

Homo sapiens chromosome 20 open reading frame 103 (C20orf103), transcript variant 1, mRNA

7.7917347



[NM_012261]



C20orf201

Homo sapiens chromosome 20 open reading frame 201 (C20orf201), mRNA [NM_001007125]

8.537778


C2orf48

Homo sapiens chromosome 2 open reading frame 48 (C2orf48), mRNA [NM_182626]

42.43253


C6orf124

Homo sapiens chromosome 6 open reading frame 124 (C6orf124), non-coding RNA [NR_027906]

12.911


C9orf47

Homo sapiens cDNA FLJ37523 fis, clone BRCAN2006401, [AK094842]

5.6207094


CACNG6

Homo sapiens calcium channel, voltage-dependent, gamma subunit 6 (CACNG6), transcript variant 1,

8.660492



mRNA [NM_145814]



CACNG7

Homo sapiens calcium channel, voltage-dependent, gamma subunit 7 (CACNG7), mRNA [NM_031896]

16.299984


CAMTA1

Homo sapiens calmodulin binding transcription activator 1 (CAMTA1), transcript variant 1, mRNA

8.311245



[NM_015215]



CAPN13

Homo sapiens calpain 13 (CAPN13), mRNA [NM_144575]

6.583616


CARD14

Homo sapiens caspase recruitment domain family, member 14 (CARD14), transcript variant 1, mRNA

10.370044



[NM_024110]



CARD6

Homo sapiens caspase recruitment domain family, member 6 (CARD6), mRNA [NM_032587]

7.9052444


CBLN2

Homo sapiens cerebellin 2 precursor (CBLN2), mRNA [NM_182511]

235.30481


CCDC144A

Homo sapiens coiled-coil domain containing 144A (CCDC144A), mRNA [NM_014695]

7.993268


CCDC144A

Homo sapiens coiled-coil domain containing 144A (CCDC144A), mRNA [NM_014695]

14.71254


CCDC144NL

Homo sapiens coiled-coil domain containing 144 family, N-terminal like (CCDC144NL) mRNA

7.063268



[NM_001004306]



CCL2

Homo sapiens chemokine (C-C motif) ligand 2 (CCL2), mRNA [NM_002982]

14.825152


CCND2

Homo sapiens cyclin D2 (CCND2), mRNA [NM_001759]

5.8978915


CCRL1

Homo sapiens chemokine (C-C motif) receptor-like 1 (CCRL1), transcript variant 1, mRNA [NM_178445]

14.8459


CD1D

Homo sapiens CD1d molecule (CD1D), mRNA [NM_001766]

5.5443244


CDC20B
cell division cycle 20 homolog B (S. cerevisiae) [Source: HGNC Symbol; Acc:24222] [ENST00000507931]
32.347153


CDCP1

Homo sapiens CUB domain containing protein 1 (CDCP1), transcript variant 2, mRNA [NM_178181]

5.723103


CDH6
cadherin 6 type 2, K-cadherin (fetal kidney) [Source: HGNC Symbol; Acc: 1765] [ENST00000506396]
5.805565


CDR1

Homo sapiens cerebellar degeneration-related protein 1, 34 kDa (CDR1), mRNA [NM_004065]

7.8617926


CEBPA

Homo sapiens CCAAT/enhancer binding protein (C/EBP), alpha (CEBPA), mRNA [NM_004364]

5.1645403


CFH

Homo sapiens complement factor H (CFH), nuclear gene encoding mitochondrial protein, transcript variant

7.511274



1, mRNA [NM_000186]



CFH

Homo sapiens complement factor H (CFH) nuclear gene encoding mitochondrial protein, transcript variant 1,

9.279625



mRNA [NM_000186]



CFHR3

Homo sapiens complement factor H-related 3 (CFHR3) transcript variant 1, mRNA [NM_021023]

6.1217637


CFI

Homo sapiens complement factor I (CFI), mRNA [NM_000204]

5.176732


CFI

Homo sapiens complement factor I (CFI), mRNA [NM_000204]

6.772929


CFTR

Homo sapiens cystic fibrosis transmembrane conductance regulator (ATP-binding cassette sub-family C,

11.484309



member 7) (CFTR), mRNA [NM_000492]



CH25H

Homo sapiens cholesterol 25-hydroxylase (CH25H), mRNA [NM_003956]

18.601637


CHRDL2

Homo sapiens chordin-like 2 (CHRDL2), mRNA [NM_015424]

6.799207


CHRM2

Homo sapiens cholinergic receptor, muscarinic 2 (CHRM2), transcript variant 2, mRNA [NM_001006627]

5.7264347


CLEC4C

Homo sapiens C-type lectin domain family 4 member C (CLEC4C) transcript variant 1, mRNA

7.951971



[NM_130441]



CMTM8

Homo sapiens CKLF-like MARVEL transmembrane domain containing 8 (CMTM8), mRNA [NM_178868]

6.18745


CNGA3

Homo sapiens cyclic nucleotide gated channel alpha 3 (CNGA3), transcript variant 1, mRNA [NM_001298]

18.462748


CNTN6

Homo sapiens contactin 6 (CNTN6), mRNA [NM_014461]

9.551367


CNTNAP3B
contactin associated protein-like 3B [Source: HGNC Symbol; Acc: 32035] [ENST00000276974]
6.5607357


COL3A1

Homo sapiens collagen, type III, alpha 1 (COL3A1), mRNA [NM_000090]

5.7362475


COL3A1

Homo sapiens collagen, type III, alpha 1 (COL3A1), mRNA [NM_000090]

10.846549


COL6A5

Homo sapiens collagen, type VI, alpha 5 (COL6A5), mRNA [NM_153264]

26.53334


CPXM2

Homo sapiens carboxypeptidase X (M14 family), member 2 (CPXM2), mRNA [NM_198148]

5.008564


CPZ

Homo sapiens carboxypeptidase Z (CPZ), transcript variant 3, mRNA [NM_001014448]

5.3078647


CREG2

Homo sapiens cellular repressor of E1A-stimulated genes 2 (CREG2) mRNA [NM_153836]

5.011623


CSN2

Homo sapiens casein beta (CSN2), mRNA [NM_001891]

77.05627


CTAG1A

Homo sapiens cancer/testis antigen 1A (CTAG1A), mRNA [NM_139250]

88.44661


CTAG2

Homo sapiens cancer/testis antigen 2 (CTAG2), transcript variant 2, mRNA [NM_020994]

20.843609


CXCL1

Homo sapiens chemokine (C-X-C motif) ligand 1 (melanoma growth stimulating activity, alpha) (CXCL1),

13.791409



mRNA [NM_001511]



CXCL2

Homo sapiens chemokine (C-X-C motif) ligand 2 (CXCL2), mRNA [NM_002089]

8.983284


CXCL6

Homo sapiens chemokine (C-X-C motif) ligand 6 (granulocyte chemotactic protein 2) (CXCL6), mRNA

5.8617096



[NM_002993]



CXCR3

Homo sapiens chemokine (C-X-C motif) receptor 3 (CXCR3), transcript variant 1, mRNA [NM_001504]

28.491007


CYP26B1

Homo sapiens cytochrome P450, family 26, subfamily B, polypeptide 1 (CYP26B1), mRNA [NM_019885]

8.024849


DCLK1

Homo sapiens doublecortin-like kinase 1 (DCLK1), transcript variant 1, mRNA [NM_004734]

24.201939


DCT

Homo sapiens mRNA for tyrosinase related protein-2 partial, axons 7, 8, 8b (alternative) and 3′UTR,

53.528954



[AJ132932]



DCTN1
dynactin 1 [Source: HGNC Symbol; Acc: 2711] [ENST00000462813]
14.119596


DIRAS3

Homo sapiens DIRAS family, GTP-binding RAS-like 3 (DIRAS3), mRNA [NM_004675]

7.6576667


DLEU7
deleted in lymphocytic leukemia, 7 [Source: HGNC Symbol; Acc: 17567] [ENST00000504404]
18.614939


DLX6

Homo sapiens distal-less homeobox 6 (DLX6), mRNA [NM_005222]

5.0957623


DNAH1

Homo sapiens dynein, axonemal, heavy chain 1 (DNAH1), mRNA [NM_015512]

85.367615


DPP6

Homo sapiens dipeptidyl-peptidase 6 (DPP6), transcript variant 3, mRNA [NM_001039350]

5.389067


DTX4

Homo sapiens dettex homolog 4 (Drosophila) (DTX4), mRNA [NM_015177]

14.33478


DYDC2

Homo sapiens DPY30 domain containing 2 (DYDC2), mRNA [NM_032372]

50.603565


ECE2

Homo sapiens endothelin converting enzyme 2 (ECE2), transcript variant 1, mRNA [NM_014693]

5.7223144


EDNRB

Homo sapiens endothelin receptor type B (EDNRB), transcript variant 2, mRNA [NM_003991]

5.2736936


EDNRB

Homo sapiens endothelin receptor type B (EDNRB), transcript variant 2, mRNA [NM_003991]

6.9502497


EGR3

Homo sapiens early growth response 3 (EGR3), transcript variant 1, mRNA [NM_004430]

5.7416267


ELN

Homo sapiens elastin (ELN), transcript variant 1, mRNA [NM_000501]

15.548598


EMR1

Homo sapiens egf-like module containing, mucin-like, hormone receptor-like 1 (EMR1), mRNA

8.012805



[NM_001974]



ENTPD1

Homo sapiens ectonucleoside triphosphate diphosphohydrolase 1 (ENTPD1), transcript variant 1, mRNA

11.598013



[NM_001776]



ENTPD1

Homo sapiens ectonucleoside triphosphate diphosphohydrolase 1 (ENTPD1), transcript variant 1 mRNA

18.57545



[NM_001776]



ENTPD3

Homo sapiens ectonucleoside triphosphate diphosphohydrolase 3 (ENTPD3), mRNA [NM_001248]

6.0331593


EPHA6

Homo sapiens EPH receptor A6 (EPHA6), transcript variant 2, mRNA [NM_173655]

7.9318533


ERG

Homo sapiens v-ets erythroblastosis virus E26 oncogene homolog (avian) (ERG), transcript variant 2, mRNA

6.8761225



[NM_004449]



ETV1

Homo sapiens ets variant 1 (ETV1), transcript variant 1, mRNA [NM_004956]

5.930012


ETV1

Homo
sapiens ets variant 1 (ETV1) transcript variant 1, mRNA [NM_004956]

6.6959066


EYA4

Homo
sapiens eves absent homolog 4 (Drosophila) (EYA4), transcript variant 1, mRNA [NM_004100]

5.8544316


FAM104B

Homo
sapiens family with sequence similarity 104, member B (FAM104B), transcript variant 1, mRNA

7.5034156



[NM_138362]



FAM106A

Homo
sapiens family with sequence similarity 106, member A (FAM106A) non-coding RNA [NR_026809]

5.367256


FAM150A

Homo
sapiens family with sequence similarity 150, member A (FAM150A), mRNA [NM_207413]

6.2002835


FAM5C

Homo
sapiens family with sequence similarity 5, member C (FAM5C), mRNA [NM_199051]

6.07245


FAM65C

Homo
sapiens family with sequence similarity 65, member C (FAM65C), mRNA [NM_080829]

6.6242995


FAM81A

Homo
sapiens family with sequence similarity 81, member A (FAM81A), mRNA [NM_152450]

10.056565


FAM84A

Homo sapiens family with sequence similarity 84, member A (FAM84A), mRNA [NM_145175]

5.9335413


FCN1

Homo sapiens ficolin (collagen/fibrinogen domain containing) 1 (FCN1), mRNA [NM_002003]

5.719947


FCRL1

Homo sapiens Fc receptor-like 1 (FCRL1), transcript variant 1, mRNA [NM_052938]

12.248644


FGF10

Homo sapiens fibroblast growth factor 10 (FGF10), mRNA [NM_004465]

5.7203684


FGL2

Homo sapiens fibrinogen-like 2 (FGL2) mRNA [NM_006682]

8.028772


FILIP1

Homo sapiens filamin A interacting protein 1 (FILIP1), mRNA [NM_015687]

16.517225


FILIP1

Homo sapiens filamin A interacting protein 1 (FILIP1), mRNA [NM_015687]

46.036945


FLJ31485

Homo sapiens uncharacterized LOC440119 (FLJ31485), non-coding RNA [NR_033834]

7.824378


FLJ38773

Homo sapiens cDNA FLJ38773 fis, clone KIDNE2018071, [AK096092]

5.1739235


FOXQ1

Homo sapiens forkhead box Q1 (FOXQ1), mRNA [NM_033260]

7.165542


FSD2

Homo sapiens mRNA; cDNA DKFZp451H129 (from clone DKFZp451H129), [AL833295]

12.632027


GABRB1

Homo sapiens gamma-aminobutyric acid (GABA) A receptor, beta 1 (GABRB1), mRNA [NM_000812]

15.691926


GABRE

Homo sapiens gamma-aminobutyric acid (GABA) A receptor, epsilon (GABRE), mRNA [NM_004961]

5.660591


GABRQ
gamma-aminobutyric acid (GABA) receptor, theta [Source: HGNC Symbol; Acc: 14454]
7.757458



[ENST00000370306]



GBP3

Homo sapiens guanylate binding protein 3 (GBP3), mRNA [NM_018284]

6.0336056


GBP3

Homo sapiens guanylate binding protein 3 (GBP3), mRNA [NM_018284]

7.7593327


GBP4

Homo sapiens guanylate binding protein 4 (GBP4), mRNA [NM_052941]

16.179169


GBP5

Homo sapiens guanylate binding protein 5 (GBP5), transcript variant 1, mRNA [NM_052942]

21.121655


GDAP1L1

Homo sapiens ganglioside-induced differentiation-associated protein 1-like 1 (GDAP1L1), mRNA

18.004025



[NM_1324034]



GDPD1

Homo sapiens glvcerophosphodiester phosphodiesterase domain containing 1 (GDPD1), transcript variant 1,

8.417395



mRNA [NM_182569]



GH2

Homo sapiens growth hormone 2 (GH2), transcript variant 3, mRNA [NM_022558]

6.60331


GJB1

Homo sapiens gap junction protein, beta 1, 32 kDa (GJB1), transcript variant 2, mRNA [NM_000166]

7.0337234


GLIPR1L2

Homo sapiens GLI pathogenesis-related 1 like 2 (GLIPR1L2), mRNA [NM_152436]

9.738023


GLYATL1

Homo sapiens glycine-N-acyltransferase-like 1 (GLYATL1) transcript variant 1 mRNA [NM_080661]

8.92534


GNAO1

Homo sapiens cDNA clone IMAGE: 4181241, [BC012202]

70.77483


GPC6

Homo sapiens glypican 6 (GPC6), mRNA [NM_005708]

5.6233478


GPNMB

Homo sapiens glycoprotein (transmembrane) nmb (GPNMB), transcript variant 1, mRNA [NM_001005340]

28.65461


GREM2

Homo sapiens gremlin 2 (GREM2), mRNA [NM_022469]

5.2581577


GREM2

Homo sapiens gremlin 2 (GREM2), mRNA [NM_022469]

8.499975


GRIK2

Homo sapiens glutamate receptor, ionotropic, kainate 2 (GRIK2), transcript variant 1, mRNA [NM_021956]

9.429901


GRIN2A

Homo sapiens glutamate receptor, ionotropic N-methyl D-aspartate 2A (GRIN2A) transcript variant 2,

6.404186



mRNA [NM_000833]



HBD

Homo sapiens hemoglobin, delta (HBD), mRNA [NM_000519]

7.0085983


HCG23

Homo sapiens HLA complex group 23 (HCG23), non-coding RNA [NR_044996]

6.039699


HDAC4

Homo sapiens histone deacetvlase 4 (HDAC4), mRNA [NM_006037]

5.20067


HFE

Homo sapiens hemochromatosis (HFE), transcript variant 11, mRNA [NM_139011]

5.802557


HIST3H2BB

Homo sapiens cDNA FLJ33901 fis, clone CTONG2008321, highly similar to HISTONE H2B F,

9.457097



[AK091220]



HLA-DMB
major histocompatibility complex class II DM beta [Source: HGNC Symbol; Acc: 4935]
8.631182



[ENST00000547478]



HMCN1

Homo sapiens hemicentin 1 (HMCN1), mRNA [NM_031935]

6.0087633


HOXB2

Homo sapiens homeobox B2 (HOXB2) mRNA [NM_002145]

7.223098


HOXB2

Homo sapiens homeobox B2 (HOXB2), mRNA [NM_002145]

12.996367


HSD17B2

Homo sapiens hydroxysteroid (17-beta) dehydrogenase 2 (HSD17B2), mRNA [NM_002153]

8.057347


HTR4

Homo sapiens 5-hydroxytryptamine (serotonin) receptor 4 (HTR4), transcript variant i, mRNA

10.306236



[NM_001040173]



IGFBP3

Homo sapiens insulin-like growth factor binding protein 3 (IGFBP3), transcript variant 1, mRNA

5.8157325



[NM_001013398]



IGFBP3

Homo sapiens insulin-like growth factor binding protein 3 (IGFBP3), transcript variant 1, mRNA

7.741202



[NM_001013398]



IGFBP5

Homo sapiens insulin-like growth factor binding protein 5 (IGFBP5), mRNA [NM_000599]

5.1364026


IGFBP5

Homo sapiens insulin-like growth factor binding protein 5 (IGFBP5), mRNA [NM_000599]

5.4666533


IGSF23

Homo sapiens immunoglobulin superfamily, member 23 (IGSF23), mRNA [NM_001205280]

9.525644


IL18R1

Homo sapiens interleukin 18 receptor 1 (IL18R1), mRNA [NM_003855]

10.403711


IL32

Homo sapiens interleukin 32 (IL32) transcript variant 1 mRNA [NM_001012631]

7.4202857


IL7

Homo sapiens interleukin 7 (IL7), transcript variant 1, mRNA [NM_000880]

11.396346


IRF5

Homo sapiens interferon regulatory factor 5 (IRF5), transcript variant 3, mRNA [NM_001098627]

11.967017


ITGB8

Homo sapiens integrin, beta 8 (ITGB8), mRNA [NM_002214]

5.975307


ITGB8

Homo sapiens integrin, beta 8 (ITGB8), mRNA [NM_002214]

6.0024295


ITGB8

Homo sapiens integrin, beta 8 (ITGB8), mRNA [NM_002214]

12.839784


JMJD5

Homo sapiens cDNA FLJ61151 complete cds, [AK298410]

7.646885


KCNK12

Homo sapiens potassium channel subfamily K, member 12 (KCNK12), mRNA [NM_022055]

6.1507177


KCTD4

Homo sapiens potassium channel tetramerisation domain containing 4 (KCTD4), mRNA [NM_198404]

6.600999


KGFLP1

Homo sapiens fibroblast growth factor 7 pseudogene (KGFLP1), non-coding RNA [NR_003674]

5.0799804


KIAA1656

Homo sapiens mRNA for K1AA1656 protein, partial cds, [AB051443]

10.032778


KIAA1908

Homo sapiens uncharacterized LOC114796 (KIAA1908), transcript variant 1, non-coding RNA [NR_027329]

7.4855485


KLF6
Kruppel-like factor 6 [Source: HGNC Symbol: Acc: 2235] [ENST00000469435]
16.583063


KLHL20
kelch-like 20 (Drosophila) [Source: HGNC Symbol; Acc: 25056] [ENST00000493170]
5.261228


KNDC1

Homo sapiens kinase non-catalytic C-lobe domain (KIND) containing 1 (KNDC1), transcript variant 1,

7.535085



mRNA [NM_152643]



KPNA4

Homo sapiens karyopherin alpha 4 (importin alpha 3) (KPNA4), mRNA [NM_002268]

9.611041


KRTAP1-3

Homo sapiens keratin associated protein 1-3 (KRTAP1-3), mRNA [NM_030966]

20.244638


KRTAP13-1

Homo sapiens keratin associated protein 13-1 (KRTAP13-1), mRNA [NM_181599]

15.870147


KYNU

Homo sapiens kynureninase (KYNU), transcript variant 1, mRNA [NM_003937]

6.6586976


KYNU

Homo sapiens kynureninase (KYNU), transcript variant 2, mRNA [NM_001032998]

8.040255


LAMA4

Homo sapiens laminin, alpha 4 (LAMA4), transcript variant 2 mRNA [NM_002290]

5.060427


LENG9

Homo sapiens leukocyte receptor cluster (LRC) member 9 (LENG9), mRNA [NM_198988]

7.067042


LINC00261

Homo sapiens long intergenic non-protein coding RNA 261 (LINC00261) non-coding RNA [NR_001558]

32.20773


LIPG

Homo sapiens lipase, endothelial (LIPG), mRNA [NM_006033]

189.19264


LOC100130071
PREDICTED: Homo sapiens GSQS6193 (LOC100130071), miscRNA [XR_109863]
34.58081


LOC100133130

Homo sapiens clone FLB4246 PRO1102 mRNA, complete cds, [AF130105]

6.199081


LOC100505619

Homo sapiens uncharacterized LOC100505619 (LOC100505619) non-coding RNA [NR_038233]

14.224171


LOC100506310
chromosome 1 open reading frame 167 [Source: HGNC Symbol; Acc: 25262] [ENST00000433342]
10.584649


LOC100506310
chromosome 1 open reading frame 167 [Source: HGNC Symbol; Acc: 25262] [ENST00000433342]
11.197517


LOC100507421

Homo sapiens transmembrane protein 178-like (LOC100507421), mRNA [NM_001195278]

50.283722


LOC100652730
PREDICTED: Homo sapiens hypothetical LOC100652730 (LOC100652730), miscRNA [XR_132670]
21.34663


LOC221442

Homo sapiens adenylate cyclase 10 (soluble) pseudogene (LOC221442), non-coding RNA [NR_026938]

6.6282353


LOC284072

Homo sapiens cDNA FLJ38084 fis, clone CTONG2016499, [AK095403]

50.38662


LOC286272

Homo sapiens cDNA FLJ10077 fis, clone HEMBA1001864, [AK000939]

5.052828


LOC647946

Homo sapiens uncharacterized LOC647946 (LOC647946), non-coding RNA [NR_024391]

34.53928


LOC84931

Homo sapiens uncharacterized LOC84931 (LOC84931), non-coding RNA [NR_027181]

5.500767


LPAR3

Homo sapiens lysophosphatidic acid receptor 3 (LPAR3), mRNA [NM_012152]

5.105164


LPAR3

Homo sapiens lysophosphatidic acid receptor 3 (LPAR3), mRNA [NM_012152]

6.1999454


LPHN3

Homo sapiens latrophilin 3 (LPHN3), mRNA [NM_015236]

12.726456


LPIN1
lipin 1 [Source: HGNC Symbol; Acc: 13345] [ENST00000460096]
15.806569


LRP1B

Homo sapiens low density lipoprotein receptor-related protein 1B (LRP1B), mRNA [NM_018557]

12.464852


LRRC19

Homo sapiens leucine rich repeat containing 19 (LRRC19), mRNA [NM_022901]

96.5277


LRRC3

Homo sapiens leucine rich repeat containing 3 (LRRC3), mRNA [NM_030891]

5.0677733


LY75

Homo sapiens lymphocyte antigen 75 (LY75), mRNA [NM_002349]

9.694963


LYVE1

Homo sapiens lymphatic vessel endothelial hyaluronan receptor 1 (LYVE1), mRNA [NM_006691]

7.6508794


MAB21L1

Homo sapiens mab-21-like 1 (C. elegans) (MAB21L1), mRNA [NM_005584]

5.0701036


MECOM

Homo sapiens MDS1 and EVI1 complex locus (MECOM), transcript variant 2, mRNA [NM_005241]

5.1384163


MEIS2

Homo sapiens Meis homeobox 2 (MEIS2), transcript variant d, mRNA [NM_170676]

9.917238


MGP

Homo sapiens matrix Gla protein (MGP), transcript variant 2, mRNA [NM_000900]

27.222235


MIAT

Homo sapiens myocardial infarction associated transcript (non-protein coding) (MIAT), transcript variant 1,

5.6434402



non-coding RNA [NR_003491]



MIAT

Homo sapiens myocardial infarction associated transcript (non-protein coding) (MIAT), transcript variant 1,

6.6361594



non-coding RNA [NR_003491]



MIR1245A

Homo sapiens microRNA 1245 (MIR1245), microRNA [NR_031647]

7.491962


MMP10

Homo sapiens matrix metallopeptidase 10 (stromelysin 2) (MMP10), mRNA [NM_002425]

18.814783


MX2

Homo sapiens myxovirus (influenza virus) resistance 2 (mouse) (MX2), mRNA [NM_002463]

9.206769


MYCL1

Homo sapiens v-myc myelocytomatosis viral oncogene homolog 1, lung carcinoma derived (avian)

5.310897



(MYCL1), transcript variant 3, mRNA [NM_005376]



MYO1G

Homo sapiens myosin IG (MYO1G), mRNA [NM_033054]

49.64526


MYO1H

Homo sapiens cDNA FLJ37587 fis, clone BRCOC2005951, moderately similar to B. taurus myosin IB

36.559258



mRNA, [AK094906]



MYT1L

Homo sapiens myelin transcription factor 1-like (MYT1L), mRNA [NM_015025]

22.714705


NETO1

Homo sapiens neuropilin (NRP) and tolloid (TLL)-like 1 (NETO1), transcript variant 3, mRNA

9.145789



[NM_138966]



NFIB

Homo sapiens nuclear factor I/B (NFIB), transcript variant 3, mRNA [NM_005596]

5.8848667


NKX6-3

Homo sapiens cDNA FLJ25169 fis, clone CBR08739, [AK057898]

15.744906


NRSN1

Homo sapiens neurensin 1 (NRSN1), mRNA [NM_080723]

7.9309936


NTRK1

Homo sapiens neurotrophic tyrosine kinase, receptor, type 1 (NTRK1), transcript variant 2, mRNA

8.465271



[NM_002529]



NTRK1

Homo sapiens neurotrophic tyrosine kinase, receptor, type 1 (NTRK1), transcript variant 2, mRNA

9.777625



[NM_002529]



ODAM

Homo sapiens odontogenic, ameloblast asssociated (ODAM), mRNA [NM_017855]

5.278667


OGN

Homo sapiens osteoglycin (OGN), transcript variant 1, mRNA [NM_033014]

6.186644


OR12D3

Homo sapiens olfactory receptor, family 12, subfamily D, member 3 (OR12D3), mRNA [NM_030959]

5.8602066


OR2T5

Homo sapiens olfactory receptor family 2 subfamily T, member 5 (OR2T5) mRNA [NM_001004697]

7.274157


OR8J1

Homo sapiens olfactory receptor family 8 subfamily J, member 1 (OR8J1) mRNA [NM_001005205]

5.675051


OXTR

Homo sapiens oxytocin receptor (OXTR), mRNA [NM_000916]

5.4097543


PALM2

Homo sapiens paralemmin 2 (PALM2), transcript variant 1, mRNA [NM_053016]

6.8525114


PAPPA

Homo sapiens pregnancy-associated plasma protein A, pappalysin 1 (PAPPA), mRNA [NM_002581]

8.157425


PCDH20

Homo sapiens protocadherin 20 (PCDH20), mRNA [NM_022843]

6.5457754


PCDHGAS

Homo sapiens protocadherin gamma subfamily A, 5 (PCDHGA5), transcript variant 2, mRNA [NM_032054]

11.57362


PDE11A

Homo sapiens phosphodiesterase 11A (PDE11A), transcript variant 4, mRNA [NM_016953]

10.867444


PDE11A

Homo sapiens phosphodiesterase 11A (PDE11A), transcript variant 4, mRNA [NM_016953]

14.052832


PDLIM3

Homo sapiens PDZ and LIM domain 3 (PDLIM3), transcript variant 1, mRNA [NM_014476]

7.2054434


PDZRN3

Homo sapiens PDZ domain containing ring finger 3, mRNA (cDNA clone IMAGE: 4639477), complete cds,

5.5011473



[BC014432]



PDZRN4

Homo sapiens PDZ domain containing ring finger 4 (PDZRN4), transcript variant 2, mRNA [NM_013377]

8.555303


PENK

Homo sapiens proenkephalin (PENK), transcript variant 2, mRNA [NM_006211]

7.6583657


PF4

Homo sapiens platelet factor 4 (PF4), mRNA [NM_002619]

10.509349


PF4V1

Homo sapiens platelet factor 4 variant 1 (PF4V1), mRNA [NM_002620]

33.466225


PHF20

Homo sapiens PHD finger protein 20 (PHF20) mRNA [NM_016436]

9.694313


PIAS4

Homo sapiens protein inhibitor of activated STAT, 4 (PEAS4), mRNA [NM_015897]

22.315287


PITPNC1

Homo sapiens phosphatidylinositol transfer protein, cytoplasmic 1 (PITPNC1), transcript variant 2, mRNA

7.40878



[NM_181671]



PLAC4

Homo sapiens placenta-specific 4 (PLAC4), mRNA [NM_182832]

6.6760406


PLK5

Homo sapiens polo-like kinase 5 (PLK5), mRNA [NM_001243079]

12.394606


PODN

Homo sapiens podocan (PODN) transcript variant 1 mRNA [NM_153703]

5.9192147


POFUT2

Homo sapiens protein O-fucosyltransferase 2 (POFUT2), transcript variant 3, mRNA [NM_133635]

6.6909666


POSTN

Homo sapiens periostin, osteoblast specific factor (POSTN), transcript variant 1, mRNA [NM_006475]

13 452635


PPHLN1

Homo sapiens periphilin 1 (PPHLN1), transcript variant 5, mRNA [NM_201438]

7.2769685


PPL

Homo sapiens periplakin (PPL), mRNA [NM_002705]

5.111492


PRDM1

Homo sapiens PR domain containing 1, with ZNF domain (PRDM1), transcript variant 1, mRNA

11.060661



[NM_001198]



PRSS35

Homo sapiens protease serine 35 (PRSS35) transcript variant 2, mRNA [NM_153362]

17.777374


PRUNE2

Homo sapiens prune homolog 2 (Drosophila) (PRUNE2), mRNA [NM_015225]

5.215551


PTGS1

Homo sapiens prostaglandin-endoperoxide synthase 1 (prostaglandin G/H synthase and cyclooxygenase)

5.351385



(PTGS1), transcript variant 1, mRNA [NM_000962]



PTPRE

Homo sapiens protein tyrosine phosphatase receptor type, E (PTPRE) transcript variant 1 mRNA

5.592387



[NM_006504]



RAB7B

Homo sapiens RAB7B, member RAS oncogene family (RAB7B), transcript variant 1, mRNA [NM_177403]

7.147107


RARRES2

Homo sapiens retinoic acid receptor responder (tazarotene induced) 2 (RARRES2), mRNA [NM_002889]

9.080296


RASL11A

Homo sapiens RAS-like, family 11, member A (RASL11A), mRNA [NM_206827]

5.9116917


RASL11B

Homo sapiens RAS-like family 11, member B (RASL11B), mRNA [NM_023940]

6.3131185


RAVER2
ribonucleoprotein, PTB-binding 2 [Source: HGNC Symbol; Acc: 25577] [ENST00000418058]
10.11057


RBMY2FP

Homo sapiens RNA binding motif protein, Y-linked, family 2, member F pseudogene (RBMY2FP),

47.26753



non-coding RNA [NR_002193]



RDH10

Homo sapiens retinal dehydrogenase 10 (all-trans) (RDH10), mRNA [NM_172037]

8.269352


RHOV

Homo sapiens ras homolog gene family member V (RHOV), mRNA [NM_133639]

14.287875


RIMKLA

Homo sapiens ribosomal modification protein rimK-like family member A (RIMKLA) mRNA [NM_173642]

5.5233345


ROPN1

Homo sapiens rhophilin associated tail protein 1 (ROPN1), mRNA [NM_017578]

7.195612


RSPO2

Homo sapiens R-spondin 2 (RSPO2) mRNA [NM_178565]

7.1980314


SAMD3

Homo sapiens sterile alpha motif domain containing 3 (SAMD3), transcript variant 1, mRNA

5.4209805



[NM_001017373]



SCG2

Homo sapiens secretogranin II (SCG2) mRNA [NM_003469]

6.993405


SDPR

Homo sapiens serum deprivation response (SDPR), mRNA [NM_004657]

5.0143037


SEMA3G

Homo sapiens sema domain, immunoglobulin domain (Ig), short basic domain, secreted, (semaphorin) 3G

25.342768



(SEMA3G), mRNA [NM_020163]



SEMG2

Homo sapiens semenogelin II (SEMG2), mRNA [NM_003008]

83.793274


SERINC4
serine incorporator 4 [Source: HGNC Symbol; Acc: 32237] [ENST00000319327]
13.489073


SFRP2

Homo sapiens secreted frizzled-related protein 2 (SFRP2), mRNA [NM_003013]

10.7199335


SFRP2

Homo sapiens secreted frizzled-related protein 2 (SFRP2), mRNA [NM_003013]

12.669123


SFRP2

Homo sapiens secreted frizzled-related protein 2 (SFRP2), mRNA [NM_003013]

14.794545


SFTPA1

Homo sapiens surfactant protein A1 (SFTPA1), transcript variant 1, mRNA [NM_005411]

5.4909563


SHANK1

Homo sapiens SH3 and multiple ankyrin repeat domains 1 (SHANK1), mRNA [NM_016148]

5.1189075


SHANK2

Homo sapiens SH3 and multiple ankyrin repeat domains 2 (SHANK2), transcript variant 1, mRNA

6.0359373



[NM_012309]



SKI

Homo sapiens v-ski sarcoma viral oncogene homolog (avian) (SKI), mRNA [NM_003036]

6.3805013


SKINTL

Homo sapiens Skint-like, pseudogene (SKINTL), non-coding RNA [NR_026749]

7.7992816


SLA

Homo sapiens Src-like-adaptor (SLA), transcript variant 1, mRNA [NM_001045556]

7.620312


SLC14A1

Homo sapiens solute carrier family 14 (urea transporter), member 1 (Kidd blood group) (SLC14A1),

5.177023



transcript variant 4, mRNA [NM_001146037]



SLC15A1

Homo sapiens solute carrier family 15 (oligopeptide transporter), member 1 (SLC15A1), mRNA

57.607304



[NM_005073]



SLC16A6

Homo sapiens solute carrier family 16, member 6 (monocarboxylic acid transporter 7) (SLC16A6), transcript

7.3237977



variant 2, mRNA [NM_004694]



SLC16A6

Homo sapiens solute carrier family 16, member 6 (monocarboxylic acid transporter 7) (SLC16A6), transcript

8.627408



variant 2, mRNA [NM_004694]



SLC22A31

Homo sapiens solute carrier family 22, member 31 (SLC22A31), mRNA [NM_001242757]

13.826827


SLC26A1

Homo sapiens solute carrier family 26 (sulfate transporter), member 1 (SLC26A1), transcript variant 2,

15.7760315



mRNA [NM_134425]



SLC6A1

Homo sapiens solute carrier family 6 (neurotransmitter transporter, GABA), member 1 (SLC6A1), mRNA

6.079788



[NM_003042]



SLC7A14

Homo sapiens solute carrier family 7 (orphan transporter), member 14 (SLC7A14), mRNA [NM_020949]

5.0602446


SLC7A14

Homo sapiens solute carrier family 7 (orphan transporter), member 14 (SLC7A14), mRNA [NM_020949]

14.438024


SLC9A9
solute carrier amily 9 (sodium/hydrogen exchanger), member 9 [Source: HGNC Symbol; Acc: 20653]
10.170171



[ENST00000498717]



SNCA

Homo sapiens synuclein alpha (non A4 component of amyloid precursor) (SNCA), transcript variant 1,

9.417178



mRNA [NM_000345]



SNED1

Homo sapiens sushi, nidogen and EGF-like domains 1 (SNED1), mRNA [NM_001080437]

6.55686


SNED1

Homo sapiens sushi, nidogen and EGF-like domains 1 (SNED1), mRNA [NM_001080437]

11.57066


SNX10

Homo sapiens sorting nexin 10 (SNX10), transcript variant 2, mRNA [NM_013322]

6.5760717


SNX10

Homo sapiens sorting nexin 10 (SNX10), transcript variant 2 mRNA [NM_013322]

8.102584


SOX2

Homo sapiens SRY (sex determining region Y)-box 2 (SOX2), mRNA [NM_003106]

5.588049


SPATA16

Homo sapiens spermatogenesis associated 16 (SPATA16) mRNA [NM_031955]

6.114361


SPDYE3

Homo sapiens speedy homolog E3 (Xenopus laevis) (SPDYE3), mRNA [NM_001004351]

6.2118874


SPON2

Homo sapiens spondin 2, extracellular matrix protein (SPON2), transcript variant 1, mRNA [NM_012445]

21.017044


SPP2

Homo sapiens secreted phosphoprotein 2, 24 kDa (SPP2), mRNA [NM_006944]

6.7812304


SPRR2D

Homo sapiens small proline-rich protein 2D (SPRR2D), mRNA [NM_006945]

6.5720673


SPRR4

Homo sapiens small proline-rich protein 4 (SPRR4) mRNA [NM_173080]

30.993826


SPRY1

Homo sapiens sprouty homolog 1, antagonist of FGF signaling (Drosophila) (SPRY1), transcript variant 2,

7.310849



mRNA [NM_199327]



SST

Homo sapiens somatostatin (SST), mRNA [NM_001048]

6.230418


ST8SIA1

Homo sapiens ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 1 (ST8SIA1), mRNA

7.1481137



[NM_003034]



SYCE1

Homo sapiens synaptonemal complex central element protein 1 (SYCE1) transcript variant 4 mRNA

8.670044



[NM_001143764]



TAAR9

Homo sapiens trace amine associated receptor 9 (gene/pseudogene) (TAAR9), mRNA [NM_175057]

24.728695


TACR1

Homo sapiens tachykinin receptor 1 (TACR1), transcript variant short, mRNA [NM_015727]

8.226762


TANC2

Homo sapiens cDNA FLJ10215 fis, clone HEMBA1006737, [AK001077]

6.404711


TFPI2
tissue factor pathway inhibitor 2 [Source: HGNC Symbol; Acc: 11761] [ENST00000222543]
7.8648047


TFPI2

Homo sapiens tissue factor pathway inhibitor 2 (TFPI2), mRNA [NM_006528]

11.574308


TGFB3

Homo sapiens transforming growth factor, beta 3 (TGFB3), mRNA [NM_003239]

5.0866065


THPO

Homo sapiens thrombopoietin (THPO), transcript variant 1, mRNA [NM_000460]

12.783364


THSD7A

Homo sapiens thrombospondin, type I, domain containing 7A (THSD7A), mRNA [NM_015204]

5.149231


TM4SF1

Homo sapiens transmembrane 4 L six family member 1 (TM4SF1), mRNA [NM_014220]

12.421069


TMEM100

Homo sapiens transmembrane protein 100 (TMEM100), transcript variant 2, mRNA [NM_018286]

7.55566


TMEM176A

Homo sapiens transmembrane protein 176A (TMEM176A), mRNA [NM_018487]

14.376767


TMEM176B

Homo sapiens transmembrane protein 176B (TMEM176B), transcript variant 1, mRNA [NM_014020]

15.972688


TMEM223
transmembrane protein 223 [Source: HGNC Symbol; Acc: 28464] [ENST00000527073]
12.1265135


TNFAIP6

Homo sapiens tumor necrosis factor, alpha-induced protein 6 (TNFAIP6), mRNA [NM_007115]

5.260216


TNFRSF10C

Homo sapiens tumor necrosis factor receptor superfamily, member 10c, decoy without an intracellular

5.2102785



domain (TNFRSF10C), mRNA [NM_003841]



TNFRSF8

Homo sapiens tumor necrosis factor receptor superfamily, member 8 (TNFRSF8), transcript variant 1,

45.364815



mRNA [NM_001243]



TPD52L3

Homo sapiens tumor protein D52-like 3 (TPD52L3), transcript variant 1, mRNA [NM_033516]

9.196981


TPH2

Homo sapiens tryptophan hydroxylase 2 (TPH2), mRNA [NM_173353]

14.183445


TPTE

Homo sapiens transmembrane phosphatase with tensin homology (TPTE), transcript variant 3, mRNA

5.4394703



[NM_199260]



TRIL

Homo sapiens TLR4 interactor with leucine-rich repeats (TRIL), mRNA [NM_014817]

5.8490143


TRPA1

Homo sapiens transient receptor potential cation channel, subfamily A, member 1 (TRPA1), mRNA

12.133277



[NM_007332]



TRPA1

Homo sapiens transient receptor potential cation channel, subfamily A, member 1 (TRPA1), mRNA

15.086606



[NM_007332]



TSPAN18

Homo sapiens tetraspanin 18 (TSPAN18), mRNA [NM_130783]

6.5376697


UGT2B7

Homo sapiens UDP glucuronosyltransferase 2 family, polypeptide B7 (UGT2B7), mRNA [NM_001074]

9.120112


UGT3A1

Homo sapiens UDP glycosyltransferase 3 family, polypeptide A1 (UGT3A1), transcript variant 1, mRNA

5.5417686



[NM_152404]



UPK3A

Homo sapiens uroplakin 3A (UPK3A) transcript variant 1, mRNA [NM_006953]

7.208652


VSTM4

Homo sapiens V-set and transmembrane domain containing 4 (VSTM4) transcript variant 1, mRNA

5.7906747



[NM_001031746]



WDR64

Homo sapiens WD repeat domain 64 (WDR64) mRNA [NM_144625]

5.002266


WHSC1

Homo sapiens Wolf-Hirschhom syndrome candidate 1 (WHSC1), transcript variant 7, mRNA [NM_133334]

5.3172607


WIF1

Homo sapiens WNT inhibitory factor 1 (WIF1), mRNA [NM_007191]

18.270514


WNT16

Homo sapiens wingless-type MMTV integration site family, member 16 (WNT16), transcript variant 1,

10.549207



mRNA [NM_057168]



WNT9A
wingless-type MMTV integration site family, member 9A [Source: HGNC Symbol; Acc: 12778]
6.0163407



[ENST00000272164]



XG

Homo sapiens Xe blood group (XG), transcript variant 1, mRNA [NM_175569]

6.842992


YPEL4

Homo sapiens yippee-like 4 (Drosophila) (YPEL4), mRNA [NM_145008]

5.38302


ZDHHC22
zinc finger, DHHC-type containing 22 [Source: HGNC Symbol; Acc: 20106] [ENST00000555327]
59.691048


ZNF175

Homo sapiens zinc finger protein 175, mRNA (cDNA clone IMAGE: 4301632), partial cds, [BC007778]

11.4099


ZNF254

Homo sapiens zinc finger protein 254 (ZNF254), mRNA [NM_203282]

6.746976


ZNF385B

Homo sapiens zinc finger protein 385B (ZNF385B), transcript variant 1, mRNA [NM_152520]

5.410112


ZNF385D

Homo sapiens zinc finger protein 385D (ZNF385D), mRNA [NM_024697]

8.568527


ZNF385D
zinc finger protein 385D [Source: HGNC Symbol; Acc: 26191] [ENST00000281523]
28.338871


ZNF618
zinc finger protein 618 [Source: HGNC Symbol; Acc: 29416] [ENST00000374126]
5.245748


ZNF708

Homo sapiens zinc finger protein 708 (ZNF708) mRNA [NM_021269]

53.38155


ZP3

Homo sapiens zona pellucida glycoprotein 3 (sperm receptor) (ZP3), transcript variant 2, mRNA

6.9537215



[NM_007155]









The dental pulp stem cell to be used in producing a graft material for treating nerve damage according to the specification may be a dental pulp stem cell in which the expression levels of one type or more, two types or more, 3 types or more, 4 types or more, 5 types or more, 6 types or more, 7 types or more, 8 types or more, 9 types or more, 10 types or more, 11 types or more, 12 types or more, 13 types or more, 14 types or more, 15 types or more, 16 types or more, 17 types or more, 18 types or more, 19 types or more, 20 types or more, or 21 types of genes selected from the group consisting of MYO1G, RBMY2FP, FILIP1, C1orf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg, and Cbln2 are each 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more, each are as high as an average expression level thereof in the dental pulp stem cells.


Among two or more groups of dental pulp stem cells, a group of dental pulp stem cells in which the gene expression level of the group of genes listed in Table 1 is high may be selected and used as the dental pulp stem cell to be used in producing a graft material for treating nerve damage according to the specification.


More specifically, a group of dental pulp stem cells in which the expression levels of the genes of 10% or more, 15% or more, 20% or more, 25% or more, 30% or more, 35% or more, 40% or more, 45% or more, 50% or more, 55% or more, 60% or more, 65% or more, 70% or more, 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, or 98% or more of the group of genes described in Table 1, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as high as other groups of cells, may be selected and used.


Among two types or more groups of dental pulp stem cells, a group of dental pulp stem cells in which the expression levels of one type or more, two types or more, 3 types or more, 4 types or more, 5 types or more, 6 types or more, 7 types or more, 8 types or more, 9 types or more, 10 types or more, 11 types or more, 12 types or more, 13 types or more, 14 types or more, 15 types or more, 16 types or more, 17 types or more, 18 types or more, 19 types or more, 20 types or more, or 21 types of genes selected from the group consisting of MYO1G, RBMY2FP, FILIP1, C1orf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg, and Cbln2, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as high as those of other groups of cells, may be selected and used as the dental pulp stem cell to be used in producing a graft material for treating nerve damage according to the specification.


In the specification, the “two types or more groups of dental pulp stem cells” refer to, for example, groups of dental pulp stem cells derived from two or more individuals; groups of the cells collected from a single individual at the intervals of a predetermined time; and groups of the cells derived from different teeth of a single individual. A group of cells may be a cell line proliferated from a single cell or a group of cells obtained by culturing a plurality of cells derived from a single individual.


In the specification, the type and level of gene expression can be examined by techniques known to those skilled in the art including Northern blotting, in-situ hybridization, RNAse protection assay and reverse transcription polymerase chain reaction (RT-PCR); however the techniques are not limited to these.


The dental pulp stem cell to be used in producing a graft material for treating nerve damage according to the specification may be a dental pulp stem cell in which the gene expression level of the group of genes listed in Table 2 is low compared to an average expression level in dental pulp stem cells.


In the specification, the “dental pulp stem cell, in which the gene expression level of the group of genes listed in Table 2 is low compared to an average expression level in dental pulp stem cells” refers to a dental pulp stem cell satisfying the following condition: when gene expression pattern was checked with respect to expression of the group of genes described in Table 2, the expression levels of genes corresponding to 10% or more, 15% or more, 20% or more, 25% or more, 30% or more, 35% or more, 40% or more, 45% or more, 50% or more, 55% or more, 60% or more, 65% or more, 70% or more, 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, or 98% or more of the group of genes described in Table 2, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as low as the average expression level in dental pulp stem cells.











TABLE 2







Times


GeneSymbol
Explanation [Genbank Accession Number]
(DP264/DP31)

















ASHD13

Homo sapiens abhydrolase domain containing 13 (ABHD13) mRNA [NM_032859]

6.7370195


ADRA2A

Homo sapiens adrenergic, alpha-2A-, receptor (ADRA2A), mRNA [NM_000681]

5.5700407


AK8

Homo sapiens cDNA FLJ36014 fis, clone TESTI2016101, [AK093333]

6.629828


ANKRD32

Homo sapiens ankyrin repeat domain 32 (ANKRD32), mRNA [NM_032290]

9.894372


AP1S3
adaptor-related protein complex 1, sigma 3 subunit [Source: HGNC Symbol; Acc: 18971]
24.408966



[ENST00000423110]



ATP1B4

Homo sapiens ATPase, Na+/K+ transporting beta 4 polypeptide (ATP164), transcript variant 2, mRNA

26.121454



[NM_012069]



ATP2A3

Homo sapiens ATPase, Ca++ transporting, ubiquitous (ATP2A3), transcript variant 5, mRNA [NM_174953]

5.542635


AUTS2

Homo sapiens autism susceptibility candidate 2 (AUTS2), transcript variant 3, mRNA [NM_001127232]

5.9751472


BET3L

Homo sapiens BET3 like (S. cerevisiae) (BET3L), mRNA [NM_001139444]

11.572534


BEX5

Homo sapiens brain expressed, X-linked 5 (BEX5), transcript variant 1, mRNA [NM_001012978]

10.4047575


BHMT2

Homo sapiens betaine--homocysteine S-methyltransferase 2 (BHMT2), transcript variant 1, mRNA

27.803728



[NM_017614]



BMP7

Homo sapiens bone morphogenetic protein 7 (BMP7), mRNA [NM_001719]

7.0865164


C11orf85
chromosome 11 open reading frame 85 [Source: HGNC Symbol; Acc: 27441] [ENST00000530735]
7.796952


C13orf30

Homo sapiens chromosome 13 open reading frame 30 (C13orf30), mRNA [NM_182608]

12.322237


C19orf21

Homo sapiens chromosome 19 open reading frame 21 (C19orf21), mRNA [NM_173481]

10.701988


C29orf71

Homo sapiens chromosome 19 open reading frame 71 (C19orf71), mRNA [NM_001135580]

12.649362


C1orf168

Homo sapiens chromosome 1 open reading frame 168 (C1orf168), rnRNA [NM)2101004303]

7.22391


C1orf88

Homo sapiens chromosome 1 open reading frame 88 (C1orf138), mRNA [NM_181643]

5.445106


C22orf45

Homo sapiens chromosome 22 open reading frame 45 (C22orf45), transcript variant 1, non-coding RNA

6.600951



[NR_028484]



C5orf52

Homo sapiens chromosome 5 open reading frame 52 (C5orF52), mRNA [NM_001145132]

6.120212


C6orf10

Homo sapiens chromosome 6 open reading frame 10 (C6orF10), mRNA [NM_006781]

5.5895653


CAMKMT

Homo sapiens chromosome 2 open reading frame 34, mRNA (cDNA clone IMAGE: 4673016), complete

7.356156



cds, [BC029359]



CAPN14

Homo sapiens calpain 14 (CAPN14), mRNA [NM_001145122]

9.117912


CAPN6

Homo sapiens calpain 6 (CAPN6), mRNA [NM_014289]

7.772801


CCDC27

Homo sapiens coiled-coil domain containing 27 (CCDC27) mRNA [NM_152492]

9.49639


CCL3

Homo sapiens mRNA for pLD7B peptide, complete cds, [D00044]

13.145225


CD80

Homo sapiens CD80 molecule (CD80), mRNA [NM_005191]

9.120709


CELF2

Homo sapiens CUGBP Elav-like family member 2 (CELF2) transcript variant 3 mRNA [NM_001025077]

10.914636


CLIC6

Homo sapiens chloride intracellular channel 6 (CLIC6), nuclear gene encoding mitochondrial protein, mRNA

8.431088



[NM_053277]



CLVS1

Homo sapiens clavesin 1 (CLVS1), mRNA [NM_173519]

14.955474


CPVL

Homo sapiens carboxypeptidase, vitellogenic-like (CPVL), transcript variant 2, mRNA [NM_01 9029]

7.7193747


CRYGD

Homo sapiens crystallin, gamma D, mRNA (cDNA clone MGC: 150917 IMAGE: 40125889), complete cds,

18.035872



[BC117338]



DBF4

Homo sapiens DBF4 homolog (S. cerevisiae) (DBF4) mRNA [NM_006716]

10.051733


DFFA4

Homo sapiens defensin alpha 4 corticostatin (DFFA4) mRNA [NM_001995]

8.129146


DPP10

Homo sapiens dipeptidyl-peptidase 10 (non-functional) (DPP10), transcript variant 1, mRNA [NM_020868]

5.980383


DSG2

Homo sapiens desmoglein 2 (DSG2), mRNA [NM_001943]

8.120088


DUOX1

Homo sapiens mRNA; cDNA DKFZp434L0610 (from clone DKFZp434L0610); partial cds, [AL137592]

5.4348574


DUOX1

Homo sapiens dual oxidase 1 (DUOX1), transcript variant 1, mRNA [NM_017434]

6.6433687


DYSF

Homo sapiens dysferlin, limb girdle muscular dystrophy 2B (autosomal recessive) (DYDF), transcript variant

6.3100667



8, mRNA [NM_003494]



ESRRB
Human mRNA for steroid hormone receptor hERR2, [X51417]
8.866751


FAM13A

Homo sapiens mRNA; cDNA DKFZp686013152 (from clone DKFZp686013152), [RX647410]

67.590775


FAM27L

Homo sapiens family with sequence similarity 27-like (FAM27L), non-coding RNA [NR_028336]

11.391356


FAM9A

Homo sapiens family with sequence similarity 9, member A (FAM9A), transcript variant 2, mRNA

5.6189966



[NM_174951]



FLJ35024

Homo sapiens uncharacterized LOC401491 (FLJ35024), non-coding RNA [NR_015375]

5.126996


FLJ38668

Homo sapiens cDNA FLJ38668 fis, clone HLUNG2008439, [AK095987]

18.998589


FOXP2

Homo sapiens forkhead box P2 (FOXP2), transcript variant 4, mRNA [NM_148900]

15.616727


FXR1

Homo sapiens fragile X mental retardation, autosomal homolog 1 (FXR1), transcript variant 3, mRNA

6.8956017



[NM_001013439]



GABRA5

Homo sapiens gamma-aminobutyric acid (GABA) A receptor alpha 5 (GABRA5), transcript variant 1,

5.0026546



mRNA [NM_000810]



GAFA3

Homo sapiens FGF-2 activity-associated protein 3 (GAFA3) mRNA, complete cd [AF220235]

58.031475


GALNT3

Homo sapiens UDP-N-acetyl-alpha-D-galactosamine: polypepride N-acetylgalactosaminyltransferase 3

10.374323



(GalNAc-T3) (GALNT3), mRNA [NM_004482]



GEN1

Homo sapiens Gen homolog 1, endonuclease (Drosophila), mRNA (cDNA clone IMAGE: 4513298) with

5.0716524



apparent retained intron, [BC035863]



GKN1

Homo sapiens gastrokine 1 (GKN1), mRNA [NM_019617]

76.34709


GLT1D1

Homo sapiens glycasyltransferase 1 domain containing 1 (GLT1D1), mRNA [NM_144669]

8.2649555


GNAL

Homo sapiens guanine nucleotide binding protein (G protein), alpha activating activity polypeptide, olfactory

9.994541



type (GNAL), transcript variant 2, mRNA [NM_002071]



GPR112

Homo sapiens G protein-coupled receptor 112 (GPR112), mRNA [NM_153834]

94.74006


GPR27

Homo sapiens G protein-coupled receptor 27 (GPR27), mRNA [NM_018971]

179.00607


GRM8

Homo sapiens glutamate receptor, metabotropic 8 (GRM8), transcript variant 1, mRNA [NM_000845]

7.08929


GSG1L

Homo sapiens GSG1-like (GSG1L), transcript variant 2, mRNA [NM_144675]

7.037393


GSTT1

Homo sapiens glutathione S-transferase theta 1 (GSTT1), mRNA [NM_000853]

45.92394


GSTT1

Homo sapiens glutathione S-transferase theta 1 (GSTT1), mRNA [NM_000853]

177.7299


GUCY1A3

Homo sapiens guanylate cyclase 1, soluble, alpha 3 (GUCY1A3), transcript variant 1, mRNA [NM_000856]

10.0507765


H19

Homo sapiens H19, imprinted maternally expressed transcript (non-protein coding) (H19), non-coding RNA

10.613719



[NR_002196]



HPSE2

Homo sapiens heparanase 2 (HPSE2), transcript variant 1, mRNA [NM_021828]

5.770388


HTATSF1P2

Homo sapiens cDNA FLJ46534 fis, clone THYMU3037052, weakly similar to Homo sapiens HIV TAT

43.155224



specific factor 1 (HTATSF1), [AK128391]



HTR4

Homo sapiens 5-hydroxytryptamine (serotonin) receptor 4 (HTR4), transcript variant d, mRNA

5.7528954



[NM_001040172]



IGSF11

Homo sapiens immunoglobulin superfamily, member 11 (IGSF11) transcript variant 1, mRNA [NM_152538]

21.946852


IQCA1

Homo sapiens IQ motif containing with AAA domain 1 (IQCAI), mRNA [NM_024726]

8.559639


ITM2A

Homo sapiens integral membrane protein 2A (ITM2A), transcript variant 1, mRNA [NM_004867]

9.097328


KRTEID12

Homo sapiens kelch repeat and RTR (PO7) domain containing 12 (KRTRD12), mRNA [NM_707335]

8.086248


KCND1

Homo sapiens potassium voltage-gated channel, Shal-related subfamily, member 1 (KCND1), mRNA

8.62409



[NM_004979]



KCNQ1

Homo sapiens potassium voltage-gated channel, NOT-like subfamily, member 1 (KCNQ1), transcript variant

8.957807



1, mRNA [NM_000218]



KIAA0226L

Homo sapiens chromosome 13 open reading frame 18, mRNA (cDNA clone IMAGE: 5212065), [BC032311]

15.101533


KIAA1244

Homo sapiens KIAA1244 (KIAA1244), mRNA [NM_020340]

6.4185023


KIAA1244

Homo sapiens KIAA1244 (KIAA1244), mRNA [NM_020340]

10.0645685


KRT16P3

Homo sapiens keratin 16 pseudogene 3 (KRT16P3), non-coding RNA [NR_029393]

7.0826035


LINC00301

Homo sapiens long intergenic non-protein coding RNA 301 (LINC00301), non-coding RNA [NR_026946]

5.88876


LINC00309

Homo sapiens long intergenic non-protein coding RNA 305 (LINC00309), non-coding RNA [NR_033837]

8.750379


LINC00477

Homo sapiens long intergenic non-protein coding RNA 477 (LINC00477), non-coding RNA [NR_029451]

7.6955123


LMF1

Homo sapiens lipase maturation factor 1 (LMF1), transcript variant 4, non-coding RNA [NR_036442]

59.499176


LOC100129198

Homo sapiens clone FLC0664 PRO2866 mRNA, complete cds [AF130117]

509.58444


LOC100131138

Homo sapiens uncharacterized LOC100131138 (LOC100131138), non-coding RNA [NR_036513]

13.540075


LOC100134091

Homo sapiens cDNA FLJ45377 fis, clone BRHIP3019956, [AK127309]

5.8445344


LOC100233156

Homo sapiens tektin 4 pseudogene (LOC100233156), transcript variant 1, non-coding, RNA [NR_037871]

12.5568075


LOC100506388

Homo sapiens uncharacterized LOC100506388 (LOC100506388), transcript variant 1, mRNA

9.898991



[NM_001242780]



LOC157860

Homo sapiens cDNA: FLJ22090 fis, clone HEP16084, [AK025743]

33.94284


LOC 158696

Homo sapiens uncharacterized LOC158696 (LOC158696), non-coding RNA [NR_026935]

5.652232


LOC283665

Homo sapiens hypothetical protein LOC283665, mRNA (cDNA clone IMAGE: 4826990), [BC034958]

94.39905


LOC388630

Homo sapiens UPF0632 protein A (LOC386630), mRNA [NM_001194986]

44.88917


LOC400752

Homo sapiens uncharacterized LOC400752 (LOC400752), non-coding RNA [NR_024270]

7.1026893


LRRC70

Homo sapiens leucine rich repeat containing 70 (LRRC70), mRNA [NM_181506]

7.3285074


LRRN1

Homo sapiens leucine rich repeat neuronal 1 (LRRN1), mRNA [NM_020873]

7.5075636


MAB21L2

Homo sapiens mab-21-like 2 (C. elegans) (MAB21L2), mRNA [NM_006439]

5.443071


MAML3

Homo sapiens mastermind-like 3 (Drosophila) (MAML3), mRNA [NM_018717]

21.73409


MECOM
Human MDS16 (MDS1) mRNA, complete cds, [U43292]
23.16021


MIR133A1

Homo sapiens microRNA 133a-1 (MIR133A1), microRNA [NR_029675]

7.9685173


MLIP

Homo sapiens muscular LMNA-interacting protein (MLIP), mRNA [NM_138569]

5.463037


MLL3

Homo sapiens myeloid/lymphoid or mixed-lineage leukemia 3 (MLL3), mRNA [NM_170606]

6.755415


MYO1G
myosin IG [Source: HGNC Symbol: Acc: 13880] [ENST00000480503]
36.72139


NAIP

Homo sapiens NLR family, apoptosis inhibitory protein (NAIP), transcript variant 1, mRNA [NM_004536]

5.0188084


NAIP

Homo sapiens NLR family, apoptosis inhibitory protein (NAIP), transcript variant 1, mRNA [NM_094536]

14.485689


NAIP

Homo sapiens NLR family, apoptosis inhibitory protein (NAIP), transcript variant 1, mRNA [NM_004536]

26.855295


NCKAP5

Homo sapiens cDNA FLJ34870 fis, clone NT2NE2014651, [AK092189]

5.0321865


NKAIN4

Homo sapiens Na+/K+ transporting ATPase interacting 4 (NKAIN4), mRNA [NM_152864]

5.4856596


NR0B7

Homo sapiens nuclear receptor subfamily 0, group R, member 2 (NR0R2), mRNA [NM_071969]

16.071416


NRIP2

Homo sapiens nuclear receptor interacting protein 2 (NRIP2) mRNA [NM_031474]

13.104872


NRXN3

Homo sapiens neurexin 3 (NRXN3), transcript variant 1, mRNA [NM_004796]

5.961855


OR2T8

Homo sapiens olfactory receptor, family 2, subfamily T, member 8 (OR2T8), mRNA [NM_001005522]

37.168884


OTOP3

Homo sapiens otopetrin 3 (OTOP3), mRNA [NM_178233]

17.833977


P2RY13

Homo sapiens purinergic receptor P2Y, G-protein coupled, 13 (P2RY13), mRNA [NM_176894]

10.975073


PDIA2

Homo sapiens protein disulfide isomerase family A, member 2 (PDIA2), mRNA [NM_006849]

343.55597


PECAM1

Homo sapiens platelet/endothelial cell adhesion molecule (PECAM1), mRNA [NM_000442]

12.3957815


PIK3R6

Homo sapiens phosphoinositide-3-kinase, regulatory subunit 6 (PIK3R6), mRNA [NM_001010855]

8.433382


POTEB

Homo sapiens POTE ankyrin domain family, member B (POTED), mRNA [NM_207355]

10.403516


POTED

Homo sapiens POTE ankyrin domain family, member D (POTED), mRNA [NM_174981]

6.567783


PRR15

Homo sapiens proline rich 15 (PRR15), mRNA [NM_175887]

9.117226


RIIAD1

Homo sapiens regulatory subunit of type II PKA R-subunit (RII8) domain containirg 1 (RIIAD1), mRNA

47.810894



[NM_001144956]



SAMD10

Homo sapiens sterile alpha motif domain containing 10 (SAMD10), mRNA [NM_080621]

5.4775047


SCRG1

Homo sapiens stimulator of chondrogenesis 1 (SCRG1), mRNA [NM_007281]

8.318421


SERPINF2

Homo sapiens serpin peptidase inhibitor, clade F (alpha-2 antiplasmin, pigment epthelium derived factor),

15.328115



member 2 (SERPINF2), transcript variant 1, mRNA [NM_000934]



SHOX2

Homo sapiens short stature homeobox 2 (SHOX2), transcript variant 2, mRNA [NM_006584]

36.967613


SIK1

Homo sapiens salt-inducible kinase 1 (SIK1), mRNA [NM_173354]

9.342587


SIK3
SIK family kinase 3 [Source: HGNC Symbol; Acc: 29165] [ENST00000480463]
8.160866


SLC2A2

Homo sapiens solute carrier family 2 (facilitated glucose transporter), member 2 (SLC2A2), mRNA

45.076607



[NM_000340]



SLC34A2

Homo sapiens solute carrier family 34 (sodium phosphate), member 2 (SLC34A2), transcript variant 1,

14.32704



mRNA [NM_006424]



SLC35F4

Homo sapiens solute carrier family 35, member F4 (SLC35F4), mRNA [NM_001206920]

127.62837


SLC7A4

Homo sapiens solute carrier family 7 (orphan transporter), member 4 (SLC7A4), mRNA [NM_004173]

5.285855


SLC9B1

Homo sapiens solute carrier amily 9, subfamily B (cation proton antiporter 2), member 1 (SLC9B1), nuclear

24.522345



gene encoding mitochondrial protein transcript variant 1, mRNA [NM_139173]



SLCO4C1

Homo sapiens solute carrier organic anion transporter family, member 4C1 (SLCO4C1), mRNA

5.383931



[NM_180991]



SLITRK2

Homo sapiens SLIT and NTRK-like family member 2 (SLITRK2) transcript variant 1, mRNA [NM_032539]

8.09339


SOHLH2

Homo sapiens spermatogenesis and oogenesis specific basic helix-loop-helix 2 (SOHLH2), mRNA

6.3827267



[NM_017826]



SPIB

Homo sapiens Spi-B transcription factor (Spi-1/PU.1 related) (SPIB), transcript variant 1, mRNA

6.160538



[NM_003121]



SQSTM1
Human phosphotyrosine independent ligand p62B B-cell isoform for the Lck SH2 domain mRNA, partial
21.140625



cds, [U46752]



STON1-

Homo sapiens STON1-GTF2A1L readthrough (STON1-GTF2A1L), transcript variant 1, mRNA

22.73415


GTF2A1L
[NM_172311]



STYK1

Homo sapiens serine/threonine/tyrosine kinase 1 (STYK1), mRNA [NM_018423]

6.1324606


SULT1C2

Homo sapiens sulfotransferase family, cytosolic, 1C, member 2 (SULT1C2), transcript variant 2, mRNA

5.3968763



[NM_176825]



SULT1C4

Homo sapiens sulfotransferase family, cytosolic, 1C, member 4 (SULT1C4), mRNA [NM_006588]

112.268


SYNPO2L

Homo sapiens synaptopodin 2-like (SYNPO2L), transcript variant 2, mRNA [NM_024875]

9.352724


SYTL1

Homo sapiens synaptotagmin-like 1 (SYTL1), transcript variant 2, mRNA [NM_032872]

6.56714


TBKBP1

Homo sapiens TBK1 binding protein 1 (TBKBP1), mRNA [NM_014726]

5.8236227


TEKT4

Homo sapiens tektin 4 (TEKT4), mRNA [NM_144705]

9.601399


TEKT4P2

Homo sapiens tektin 4 pseudogene 2 (TEKT4P21, transcript variant 3, non-coding RNA [NR_038329]

9.088646


TET1

Homo sapiens tet methylcytosine dioxygenase 1 (TET1), mRNA [NM_030625]

15.013668


THNSL2

Homo sapiens threonine synthase-like 2 (S. cerevisiae) (THNSL2), transcript variant 1, mRNA

5.326104



[NM_018271]



TINAG

Homo sapiens tubulointerstitial nephritis antigen (TINAG), mRNA [NM_014464]

29.155573


TMEM132D

Homo sapiens transmembrane protein 132D (TMEM132D), mRNA [NM_133448]

7.51078


TMEM2

Homo sapiens transmembrane protein 2 (TMEM2), transcript variant 1, mRNA [NM_013390]

8.420662


TMEM31

Homo sapiens transmembrane protein 31 (TMEM31), mRNA [NM_182541]

7.3745914


TMSB4Y

Homo sapiens hymosin beta 4, Y-linked (TMSB4Y), mRNA [NM_004202]

16.171171


TPD52

Homo sapiens tumor protein D52 (TPD52), transcript variant 1, mRNA [NM_001025252]

11.895537


TPD52

Homo sapiens tumor protein D52 (TPD52), transcript variant 1, mRNA [NM_001025252]

17.488007


TPPP2

Homo sapiens tubule polymerization-promoting protein family member 2 (TPPP2), mRNA [NM_173846]

10.157727


TPTE2P6

Homo sapiens transmembrane phosphoinositide 3-phosphatase and tensin homolog 2 pseudogene 6

12.2382765



(TPTE2P6), non-coding RNA [NR_002815]



TRAT1

Homo sapiens T cell receptor associated transmembrane adaptor 1 (TRAT1), mRNA [NM_016388]

9.758402


TREH

Homo sapiens trehalase (brush-border membrane glycoprotein) (TREH), mRNA [NM_007180]

6.175398


TRIM36

Homo sapiens tripartite motif containing 36 (TRIM36), transcript variant 1, mRNA [NM_018700]

6.563853


TRPM1

Homo sapiens transient receptor potential cation channel, subfamily M, member 1 (TRPM1) transcript

7.071682



variant 2, mRNA [NM_002420]



TUSC3

Homo sapiens cDNA: FLJ22496 fis, clone HRC11236, [AK026149]

9.696791


USE2QL1

Homo sapiens ubiquitin-conjugating enzyme E2Q family-like 1 (UBE2QL1), mRNA [NM_001145161]

7.371957


UBR4
ubiquitin protein ligase E3 component n-recognin 4 [Source: HGNC Symbol; Acc: 30313]
8.200464



[ENST00000419533]



VP553

Homo sapiens vacuolar protein sorting 53 homolog (S. cerevisiae) (VP553), transcript variant 2, mRNA

16.601204



[NM_018289]



ZBTB32

Homo sapiens zinc finger and BTB domain containing 32 (ZBTB32), mRNA [NM_014383]

9.604526


ZCCHCS

Homo sapiens zinc finger, CCHC domain containing 5 (ZCCHC5), mRNA [NM_152694]

5.275995


ZNF423

Homo sapiens zinc finger protein 423 (ZNF423), mRNA [NM_015069]

7.5440564









The dental pulp stem cell to be used in producing a graft material for treating nerve damage according to the specification may be a dental pulp stem cell in which the expression levels of one type or more, two types or more, 3 types or more, 4 types or more, 5 types or more, 6 types or more, 7 types or more, 8 types or more, 9 types or more, 10 types or more, 11 types or more, 12 types or more, 13 types or more or 14 types of genes selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sult1c4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2, and HTATSF1P2, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as low as an average expression level in the dental pulp stem cells.


Among two types or more groups of dental pulp stem cells, a group of dental pulp stem cells in which the gene expression level of the group of genes listed in Table 2 is low, may be selected and used as the dental pulp stem cell to be used in producing a graft material for treating nerve damage according to the specification.


More specifically, a group of dental pulp stem cells in which the expression levels of the genes of 10% or more, 15% or more, 20% or more, 25% or more, 30% or more, 35% or more, 40% or more, 45% or more, 50% or more, 55% or more, 60% or more, 65% or more, 70% or more, 75% or more, 80% or more, 85% or more, 90% or more, 95% or more, or 98% or more of the group of genes described in Table 2, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as low as other groups of cells, may be selected and used.


Among two types or more groups of dental pulp stem cells, a group of dental pulp stem cells in which the expression levels of one type or more, two types or more, 3 types or more, 4 types or more, 5 types or more, 6 types or more, 7 types or more, 8 types or more, 9 types or more, 10 types or more, 11 types or more, 12 types or more, 13 types or more or 14 types of genes selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sultic4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2 and HTATSF1P2, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as low as other groups of cells, may be selected and used as the dental pulp stem cell to be used in producing a graft material for treating nerve damage according to the specification.


The effect of the graft material for treatment obtained by the method for producing a graft material for treating nerve damage according to the present invention can be evaluated by the following method using, for example, a disease-model animal.


A rat middle cerebral artery occlusion (MCAO) model can be prepared by a known method and more specifically prepared as follows. A wild type rat was anesthetized. While maintaining the rectal temperature at 37±0.5° C. under anesthesia, the cervical region was dissected to expose a branched part of the right carotid artery and internal and external carotid arteries were separated. Thereafter, a 4-0 nylon thin thread having a tip rounded off by silicon coat was inserted from the external carotid artery, allowed to reach the beginning of the middle cerebral artery through the internal carotid artery and fixed there. In this manner, blood flow in the right side middle cerebral artery region was blocked to cause ischemia. After the ischemia state was maintained for one hour, the nylon thin thread was withdrawn out of the middle cerebral artery to allow perfusion to start again.


At the 48th hour after the perfusion was started again, an effective amount of graft material (dental pulp stem cell) for treatment according to the present invention was administered from the caudal vein. Alternatively, the effective amount of graft material (dental pulp stem cell) for treatment may be locally administered to an infarction site.


Recovery of motor function is evaluated based on BBB score (Basso D M et al., J Neurotrauma. 1995 February; 12 (1): 1-21).


[Graft Material for Treating Nerve Damage]

The graft material for treating nerve damage according to the present invention is produced by the method for producing a graft material for treating nerve damage according to the present invention described above and contains a dental pulp stem cell and a medium substantially containing no growth factors except FGF2. The “dental pulp stem cell” and the “medium substantially containing no growth factors except FGF2” are the same as defined above. The graft material may contain gel such as collagen gel, soft agar and a synthetic polymer and the viscosity may be controlled by an appropriate gelation agent or a thickening agent.


The dental pulp stem cell to be used in a graft material for treating nerve damage according to the specification may be a dental pulp stem cell in which the gene expression level of the group of genes listed in Table 1 is high compared to the average expression level of genes in dental pulp stem cells. The “dental pulp stem cell, in which the gene expression level of the group of genes listed in Table 1 is high compared to the average expression level of genes in dental pulp stem cells” is the same as described above.


The graft material for treating nerve damage according to the specification may be a graft material using a dental pulp stem cell in which compared to an average expression level in the dental pulp stem cells, the expression levels of one type or more, two types or more, 3 types or more, 4 types or more, 5 types or more, 6 types or more, 7 types or more, 8 types or more, 9 types or more, 10 types or more, 11 types or more, 12 types or more, 13 types or more, 14 types or more, 15 types or more, 16 types or more, 17 types or more, 18 types or more, 19 types or more, 20 types or more, or 21 types of genes selected from the group consisting of MYO1G, RBMY2FP, FILIP1, Clorf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg, and Cbln2, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as high as other groups of cells.


As the dental pulp stem cell to be used in the graft material for treating nerve damage according to the specification, a group of dental pulp stem cells in which the gene expression level of the group of genes listed in Table 1 is high may be selected and used from two types or more groups of dental pulp stem cells and used. The “dental pulp stem cells in which the gene expression level of the group of genes listed in Table 1 is high, may be selected and used from two types or more groups of dental pulp stem cells” is the same as defined above.


Among two types or more groups of dental pulp stem cells, a group of dental pulp stem cells in which the expression levels of one type or more, two types or more, 3 types or more, 4 types or more, 5 types or more, 6 types or more, 7 types or more, 8 types or more, 9 types or more, 10 types or more, 11 types or more, 12 types or more, 13 types or more, 14 types or more, 15 types or more, 16 types or more, 17 types or more, 18 types or more, 19 types or more, 20 types or more, or 21 types of genes selected from the group consisting of MYO1G, RBMY2FP, FILIP1, C1orf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg, and Cbln2, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as high as other groups of cells, may be selected and used as the dental pulp stem cell to be used in the graft material for treating nerve damage according to the specification.


The dental pulp stem cell to be used in the graft material for treating nerve damage according to the specification may be a dental pulp stem cell, in which the gene expression level of the group of genes listed in Table 2 is low compared to an average expression level in dental pulp stem cells.


The “dental pulp stem cell, in which the gene expression level of the group of genes listed in Table 2 is low compared to an average expression level in dental pulp stem cells” is the same as described above.


The dental pulp stem cell to be used in the graft material for treating nerve damage according to the specification may be a dental pulp stem cell, in which the expression levels of one type or more, two types or more, 3 types or more, 4 types or more, 5 types or more, 6 types or more, 7 types or more, 8 types or more, 9 types or more, 10 types or more, 11 types or more, 12 types or more, 13 types or more or 14 types of genes selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sult1c4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2 and HTATSF1P2, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as low as an average expression level in the dental pulp stem cells.


The dental pulp step cell to be used in the graft material for treating nerve damage according to the specification includes a graft material using a dental pulp stem cell in which the gene expression level of the group of genes listed in Table 2 is low, of two types or more groups of dental pulp stem cells.


The “dental pulp stem cell, in which the gene expression level of the group of genes listed in Table 2 is low, of two types or more groups of dental pulp stem cells” is the same as described above.


Among two types or more groups of dental pulp stem cells, a group of dental pulp stem cells, in which the expression levels of one type or more, two types or more, 3 types or more, 4 types or more, 5 types or more, 6 types or more, 7 types or more, 8 types or more, 9 types or more, 10 types or more, 11 types or more, 12 types or more, 13 types or more or 14 types of genes selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sult1c4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2 and HTATSF1P2, each are 5 times or more, 10 times or more, 20 times or more, 30 times or more, 40 times or more, 50 times or more, 60 times or more, 70 times or more, 80 times or more, 90 times or more, 95 times or more, or 100 times or more as low as other groups of cells, may be selected and used as the dental pulp stem cell to be used in a graft material for treating nerve damage according to the specification.


[Method for Treating Nerve Damage]


The present invention includes a method for treating nerve damage, including a step of grafting the graft material for treating nerve damage as mentioned above to an area of nerve damage.


The graft material for treating nerve damage can be injected into an area of nerve damage by e.g., a syringe. Alternatively, the area of nerve damage is dissected and then the graft material may be disposed. In the case where the graft material contains a xenogeneic cell, an immune suppressant such as cyclosporine can be administered together. As long as a nerve damage therapeutic effect can be obtained, the grafting material can be used in combination with other medicinal drugs.


The dose and administration times can be appropriately determined by those skilled in the art.


The subject to which the method for treating a nerve damage is to be applied is not limited to humans and may be other mammals (for example, mice, rats, rabbits, dogs, cats, monkeys, sheep, cows, horses).


In the specification, an example of a method for treating human brain infarction will be described below; however, the treatment method is not limited to the following example.


The graft material for treatment produced by the method for producing a graft material for treating nerve damage according to the present invention or the graft material for treating nerve damage according to the present invention, more specifically, dental pulp stem cells, are intravenously administered by use of a syringe pump from a peripheral vein at an injection rate of 2 mL/minute to a patient with human brain infarction, in an effective amount.


[Kit for Producing Graft Material for Treating Nerve Damage]

The present invention includes a kit for producing a graft material for treating nerve damage. The kit contains a medium for culturing a dental pulp stem cell or all or part of components of the medium and FGF2. As the medium for culturing a dental pulp stem cell, a base medium or a medium for culturing a mesenchymal stem cell is mentioned. FGF2 and the medium may be separately contained or may be mixed together from the beginning. Furthermore, under the assumption that ultra-pure water, which is a material regularly stocked in laboratories, can be prepared by the user, all or part of requisite components for a medium may be contained so as to prepare the medium of the present invention only by adding the components to the water.


The kit of the present invention may be used in experiments performed in laboratories or used in a large scale culture. The kit may contain, other than a culture solution, e.g., a culture container, a virus filter, a coating material for a culture container, various reagents, a buffer and an instruction booklet.


The disclosures of all Patent Literatures and Non Patent Literatures cited in the specification are incorporated herein in their entirety by reference.


Examples

Now, the present invention will be more specifically described based on Examples; however, the present invention is not limited to these. Those skilled in the art can modify the invention in various ways without departure from the significance of the present invention and such modifications are included in the range of the present invention.


Example 1
Effect 1 of Difference in Culture Method of Dental Pulp Stem Cell Upon Motor Function Recovery Effect of Model with Total Amputation of Spinal Cord

1. Experimental Method


1-1. Animal and Material


Wistar rats (7 weeks old, female) were purchased from Japan SLC and an anesthetic drug, somnopentyl, was purchased from Kyoritsuseiyaku Corporation. Prior to animal experiments, a protocol of animal experiment was prepared in accordance with a predetermined format based on the regulation for safety and welfare of animal experiments and approval by the animal breeding/animal experiment committee of Gifu Pharmaceutical University was obtained.


1-2. Cell Culture


From the evulsion tooth excised out, dental pulp stem cells were induced and proliferated in culture in accordance with the previous report (Tamaoki et al., J Dent Res. 2010 89: 773-778). The dental pulp stem cells successively cultured up to the 8th generation were sub-cultured in MSCGM medium (LONZA) 2 to 5 times to prepare cells (DP310) and sub-cultured in a-MEM medium (Sigma) containing 10 ng/mL FGF2 and 10% FCS, 5 or 6 times to prepare dental pulp stem cells (DP31F).


1-3. Experimental Method using Total Amputation Model


Preparation of Model with Total Amputation of Spinal Cord


To Wistar rats (7 weeks old, female), somnopentyl was intraperitoneally administered in a dose of 40 mg/kg body weight. After anesthesia, the back was dissected along the midline at the position of the 10th thoracic spine in a length of 2 cm. The fat and muscle tissues were removed to expose the spine. The vertebral arch was removed and the 10th thoracic spine (T10) was dissected cross-sectionally with a sharp knife. After arrest of bleeding, the cultured dental pulp stem cells, which were suspended in each medium so as to contain 106 cells/10 μL, were injected to the space between the rostral cut-end and the caudal cut-end of the cleavage site. Thereafter, the muscles of the back and the skin were sutured. After the surgery, it was confirmed that the hind limb at the same side of the cleaved spinal cord was paralyzed. The rats were raised in a routine manner and subjected to experiments. Note that cyclosporine serving as an immune suppressant was intraperitoneally injected in a dose of 10 mg/kg, every day.


2. Results


Recovery of motor function was evaluated based on BBB score (Basso D M et al., J Neurotrauma. 1995 February; 12 (1): 1-21) (FIG. 1).


Two weeks later, even an individual to a damaged part of which the cells were not injected but PBS or a culture supernatant alone was injected, recovered to the extent that one or two joints of the hind limb completely paralyzed slightly moved. However, no more recovery of motor function was observed in 7 weeks after the damage (BBB score=1).


In contrast, in the group having DP310 grafted, as shown in FIG. 1, three weeks after the damage, two joints became sufficiently movable in a half number of the individuals (7 out of 14). Four weeks after the damage, all individuals of the group showed significantly high motor function compared to the control group (BBB score=3.5). In the group having DP31F grafted, one week after the damage, one joint of the hind limb became slightly movable. On and after two weeks, the individuals showed significantly high motor function compared to the control group and the DP310 grafted group (final BBB score=6.5). The half of them (7 out of 13) was recovered to the extent that the body weight was supported by the paralyzed limb.


Example 2
Effect 2 of Difference in Culture Method of Dental Pulp Stem Cell Upon Motor Function Recovery Effect of Model with Total Amputation of Spinal Cord

1. Experimental Method


1-1. Animal and Material


Animals were prepared in the same manner as in Example 1.


1-2. Cell Culture


From the evulsion tooth excised out, dental pulp stem cells were induced and proliferated in culture in accordance with the previous report (Tamaoki et al., J Dent Res. 2010 89: 773-778). The dental pulp stem cells successively cultured up to the 12nd generation in MSCBM medium (LONZA) were sub-cultured in α-MEM medium (Sigma) containing 10% FCS, 7 or 8 times to prepare dental pulp stem cells (DP31S) and sub-cultured in α-MEM medium containing 10 ng/mL FGF2 and 10% FCS, 7 or 8 times to prepare dental pulp stem cells (DP31F).


1-3. Experimental method using total amputation model Models with total amputation of spinal cord was prepared in the same manner as in Example 1.


2. Results


In the same manner as in Example 1, recovery of motor function was evaluated based on BBB score (Basso D M et al., J Neurotrauma. 1995 February; 12 (1): 1-21) (FIG. 2).


In the group (control) where cells were not grafted and the group where dental pulp stem cells (DP31S) cultured in FGF2 free α-MEM medium containing 10% FSC were grafted, motor function recovery of the hind limb was rarely observed. Only one joint, in average, was slightly movable (BBS score=1.9±0.2, n=45, BBS score=1.9±0.2, n=14, respectively).


In contrast, in the group where dental pulp stem cells (DP31F) cultured in FGF2 containing a-MEM medium containing 10% FSC, were grafted, significant recovery effect of motor function was observed. In average, all three joints became movable (BBS score=5.0±0.7, n=28).


Example 3
Effect of Difference in Donor of Dental Pulp Stem Cell Upon Motor Function Recovery Effect of Model with Total Amputation of Spinal Cord

1. Experimental Method


1-1. Animal and Material


Animals were prepared in the same manner as in Example 1.


1-2. Cell Culture


From evulsion teeth excised out from three different donors (DP31, DP74, and DP264), dental pulp stem cells were induced, and proliferated in culture in accordance with the previous report (Tamaoki et al., J Dent Res. 2010 89: 773-778). The dental pulp stem cells derived from three donors each successively cultured 7 or 8 times in α-MEM medium containing 10 ng/mL FGF2 and 10% FCS to prepare dental pulp stem cells (DP31F, DP74F, and DP264F) derived from three donors.


1-3. Experimental method using total amputation model In Models with total amputation of spinal cord were prepared in the same manner as in Example 1.


2. Results


Recovery of motor function was evaluated based on BBB score (Basso D M et al., J Neurotrauma. 1995 February; 12 (1): 1-21) in the same manner as in Example 1 (FIG. 3).


In the DP264F grafted group, compared to DP31F and DP74F grafted groups (BBB score=4.1±0.7, n=12), no recovery effect of motor function was observed (BBB score=1.1±0.2, n=14).


Experimental Example 1
Effect of Difference in Culture Method of Dental Pulp Stem Cell Upon Expression of Differentiation Marker of Nervous System Cell

1. Experimental Method


The rats of Example 1 in which dental pulp stem cells DP310 were grafted and the rats of Example 2 in which dental pulp stem cells DP31F were grafted, each were subjected to transcardial perfusion fixation with 0.1 M phosphate buffer (pH7.3) containing 4% paraformaldehyde, 7 weeks after grafting and a spinal cord tissue was excised out.


The spinal cord tissue excised out was soaked in a 20% sucrose solution in accordance with a conventional method, embedded in an OCT compound and sliced into thin sections by a cryostat. The thin sections were attached on slide glasses, soaked in Tris-HCl (pH7.4) containing 0.3% Triron X100 (registered trade mark) to enhance cell membrane permeability with an antibody, blocked with PBS containing 2% blockace (DS Pharma Biomedical Co., Ltd.) at room temperature for 30 minutes. Immunostaining was performed with a primary antibody such as anti-Human Nuclear antigen antibody (Millipore (MAB1281)), anti-Tujl antibody (Cell Signaling technology, #5568), anti-myelin basic protein (MBP) antibody (Millipore (AB980)), anti-CNPase antibody (Sigma (C5922)), anti-glial fibrillary acidic protein (GFAP) antibody (Dako (Z0334)), anti-growth asscciated protein 43 (GAP43) antibody (Chemicon (MAB347)) or anti-green fluorescence protein (GFP) antibody (Chemicon (AB3080)).


Human Nuclear antigen is a marker for human cells; CNPase is a marker for immature oligodendrocytes; and GFAP is a marker for immature astrocyte. Note that the graft cells were designed to express a GFP gene by use of a retroviral vector.


2. Results


The grafted dental pulp stem cells were identified based on GFP or Human Nuclear antigen positive. In DP310 before grafting, all markers (more specifically, Tuj1 (immature nerve cell marker), GFAP, CNPase, and Nestin (stem cell marker)) observed in immature nervous system cells, expressed; whereas, in DP310 in the spinal cord tissue, almost all cells were negative to Tuj1 and GFAP and positive to CNPase. In contrast in DP31F in the spinal cord tissue, a predetermined ratio of cells were positive to Tuj1 and MBP and almost all cells were negative to GFAP (it was not confirmed whether the cells positive to Tuj1 and positive to MBP are the same or not).


Thus, the possibility that grafted DP310 may be differentiated into oligodendrocytes and DP31F into a cell population containing nerve cells and oligodendrocytes, was suggested.


From the above, it was suggested that the following features were added to the dental pulp stem cells treated with FGF2, more specifically, to the cells cultured in MSCGM.


(i) When grafted in damaged spinal cord, the cells are changed into cells specifically differentiated into nerve cells.


(ii) Differentiation potency is limited (more specifically, the cells are specifically differentiated into nerve cells); however, proliferation potency is maintained.


These features indicate that the dental pulp stem cells treated with FGF2 are useful for treating nerve damage.


Experimental Example 2
Global Gene Expression Analysis

1. Experimental Method


The dental pulp stem cells derived from two donors (DP31, and DP264) were cultured in MSCBM medium. Total RNA was extracted from the above dental pulp stem cells by RNeasy Plus Mini kit (Qiagen). After the RNA was quantified by Agilent 2100 Bioanalyzer (Agilent Technologies), 250 mg of RNA was taken and subjected to reverse transcription to obtain cDNA, which was amplified and labeled with Cy3-labeled CTP, by use of Low Input Quick Amp Labeling kit (Agilent Technologies) in accordance with the instruction booklet attached thereto. After the cDNA was purified, the cDNA was quantified by use of ND-1000 Spectrophotometer (Nano Drop Technologies) and allowed to hybridize to Whole Human Genome 4×44K oligo-DNA microarray (Agilent Technologies). After the hybridization, the array was continuously washed with Gene Expression Wash Pack (Agilent Technologies). The fluorescent image of the hybridized array was prepared by Agilent DNA Microarray Scanner (Agilent Technologies) and the fluorescent intensity was analyzed by Agilent Feature Extraction software ver.10.7.3.1. (Agilent Technologies). Analysis was made once with respect to each sample. The level of gene expression was analyzed by Gene Spring GX11.5 (Agilent Technologies).


2. Results


The genes of DP264 whose expression levels were 5 times or more as high as those in DP31 were listed in Table 1 and the genes of DP264 whose expression levels were 5 times or more as low as those in DP31 were listed in Table 2.

Claims
  • 1-27. (canceled)
  • 28. A method for producing a graft material for treating nerve damage, comprising a step of culturing a dental pulp stem cell in a medium substantially containing no growth factors except FGF2, whereinthe dental pulp stem cell used is a dental pulp stem cell in which(i) the expression level of 10% or more of genes in the group of genes listed in Table 1 is 5 times or more as high as an average expression level of the genes in dental pulp stem cells,(ii) the expression level of at least one gene selected from the group consisting of MYO1G, RBMY2FP, FILIP1, C1orf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg and Cbln2 is 5 times or more as high as an average expression level of the genes in dental pulp stem cells,(iii) the expression level of 10% or more of genes in the group of genes listed in Table 2 is 5 times or more as low as an average expression level of the genes in dental pulp stem cells, or(iv) the expression level of at least one gene selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sult1c4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2, and HTATSF1P2 is 5 times or more as low as an average expression level of the genes in dental pulp stem cells.
  • 29. The method according to claim 28, wherein the average expression level of the genes in dental pulp stem cells is calculated based on expression levels of two or more groups of dental pulp stem cells.
  • 30. The method according to claim 28, wherein the medium substantially containing no growth factors except FGF2 is a serum-containing base medium supplemented with FGF2 alone as a growth factor.
  • 31. The method according to claim 30, wherein the serum in the medium has a concentration of less than 15 wt %.
  • 32. The method according to claim 28, wherein the medium substantially containing no growth factors except FGF2 is a commercially available medium for culturing mesenchymal stem cells supplemented with FGF2 alone as a growth factor.
  • 33. The method according to claim 28, wherein FGF2 in the medium has a concentration of 5 ng/mL or more, or 7 ng/mL or more.
  • 34. The method according to claim 28, wherein the nerve damage is spinal cord injury, cerebral infarction, intracerebral hemorrhage, subarachnoid hemorrhage, spinal hemorrhage, compression injury of nerve caused by disk herniation, sciatic nerve pain or peripheral nerve damage caused by diabetes.
  • 35. A graft material for treating nerve damage, wherein the graft material is produced by the method according to claim 28.
  • 36. The graft material for treating nerve damage according to claim 35, wherein the medium substantially containing no growth factors except FGF2 is a serum-containing base medium supplemented with FGF2 alone as a growth factor.
  • 37. The graft material for treating nerve damage according to claim 35, wherein the medium substantially containing no growth factors except FGF2 is a commercially available medium for culturing mesenchymal stem cells supplemented with FGF2 alone as a growth factor.
  • 38. The graft material for treating nerve damage according to claim 35, wherein the nerve damage is spinal cord injury, cerebral infarction, intracerebral hemorrhage, subarachnoid hemorrhage, spinal hemorrhage, compression injury of nerve caused by disk herniation, sciatic nerve pain or peripheral nerve damage caused by diabetes.
  • 39. A method for treating nerve damage, comprising a step of grafting a graft material for treating nerve damage produced by the method according to claim 28 to an area of nerve damage.
  • 40. The method according to claim 39, wherein the nerve damage is spinal cord injury, cerebral infarction, intracerebral hemorrhage, subarachnoid hemorrhage, spinal hemorrhage, compression injury of nerve caused by disk herniation, sciatic nerve pain or peripheral nerve damage caused by diabetes.
  • 41. A kit for producing a graft material for treating nerve damage according to claim 35.
  • 42. A method for selecting a material for a graft material for treating nerve damage from a plurality of groups of dental pulp stem cells, comprising selecting a dental pulp stem cell having at least one of the following properties (i) to (iv): (i) the expression level of 10% or more of genes in the group of genes listed in Table 1 is 5 times or more as high as other groups of cells,(ii) the expression level of at least one gene selected from the group consisting of MYO1G, RBMY2FP, FILIP1, C1orf64, TNFRSF8, C2orf48, AGTR1, Dydc2, Znf708, Dct, Slc15a1, Zhddc22, Adam20, Gnao1, Csn2, Semg2, Dnah1, Ctag1a, Lrrc19, Lipg and Cbln2 is 5 times or more as high as other groups of cells,(iii) the expression level of 10% or more of genes in the group of genes listed in Table 2 is 5 times or more as low as other groups of cells, and(iv) the expression level of at least one gene selected from the group consisting of Gafa3, Lmf1, Fam13a, Gkn1, Gpr112, Sult1c4, Slc35f4, Gstt1, Gpr27, Pdia2, RIIAD1, GSTT1, SLC2A2, and HTATSF1P2 is 5 times or more as low as other groups of cells.
Priority Claims (1)
Number Date Country Kind
2013-102426 May 2013 JP national
PCT Information
Filing Document Filing Date Country Kind
PCT/JP2014/062881 5/14/2014 WO 00