The proposed invention relates to a novel cosmetic product with properties for repairing and rejuvenating the skin which includes in the composition thereof plant growth factors, in addition to antioxidants, anti-wrinkle peptides and stem cells and which is applicable to the sector of beauty, cosmetic and dermatology centers.
Many cosmetic preparations have been known hitherto which have effects for rejuvenating and repairing the skin, but preparations are not known that include liposomes with active ingredients such as high purity plant growth factors together with liposomated antioxidants, anti-wrinkle peptides and stem cells.
The product which the invention proposes consists of a liposomated preparation in which the liposomes incorporate, as fundamental active ingredients, high purity plant growth factors and antioxidants, in addition to including, without liposomating, anti-wrinkle peptides and stem cells.
The growth factors are natural proteins which stimulate cell growth, proliferation and differentiation. They play an important role in maintaining a structure of healthy skin, upon intervening in the communication between the epidermic and dermic cells by means of bonding to specific receptors on the surface of the cell.
It is well known that the growth factors play an important role for reversing the effects of aging of the skin, the topical application in individuals of growth factors has been demonstrated which acts at a local level and stimulates cell renovation, the reduction of wrinkles and the increase of collagen synthesis.
The main advantage of the product of the present invention is that it concerns high purity plant growth factors which, as they are incorporated in liposomes, their penetration through the skin and their stability is improved while avoiding their degradation like proteins that they are.
Among the plant growth factors included in the composition, there are the factors: HGH (human growth hormone), Nicotiana benthamiana Sh-Polypeptide-7, GM-CSF (Granulocyte Macrophage Colony-Stimulating Factor) Nicotiana benthamiana Sh-Polypeptide-45 and TGFb2 (Tumor growth factor beta 2) Nicotiana benthamiana Hexapeptide-40 Sh-Polypeptide-76.
Nicotiana benthamiana Sh-Polypeptide-7 is a single chain recombinant human peptide, produced in a transitory manner in the expression of Nicotiana benthamiana in plants. The starting gene is a copy synthesized from the human gene which codes for the growth hormone (GH) used as such or adapted to the host. It contains a maximum of 197 amino acids. The protein consists of the appropriate sequence of the 20 standard amino acids.
Nicotiana benthamiana Sh-Polypeptide-45 is a single chain of recombinant human peptide, produced in a transitory manner in the expression of Nicotiana benthamiana in plants. The starting gene is a synthetic copy of the human gene which codes for the factor for stimulating colonies of granulocytes and macrophages used as such or adapted for the production of the host. It contains a maximum of 127 amino acids which may contain disulfide bonds and/or glycosylation. The protein consists of the appropriate sequence of the 20 standard amino acids.
Nicotiana benthamiana Hexapeptide-40 sh-Polypeptide-76 contains two identical polypeptide chains joined by a single disulfide bond. They are produced in a transitory manner in the expression of Nicotiana benthamiana in plants. The starting gene is a synthetic copy of the human gene which codes for the transforming beta 2 growth factor used as such or adapted for the production of the host. It contains a maximum of 237 amino acids which may contain disulfide bonds and/or glycosylation. The protein consists of the appropriate sequence of the 20 standard amino acids.
In addition, among the liposomated antioxidants which are included in the composition there are ergothioneine, quercetin and pterostilbene and among the anti-wrinkle peptides, also liposomated, there are Centella asiatica extract, palmitoyl tripeptide-3 and caprooyl tetrapeptide-3.
Lastly, the product also incorporates as the active ingredient, without liposomating, extracts of stem cells of Malus domestica.
In the tests carried out, the data of which is stated below, it is checked that these growth factors in the form of liposomes maintain the same activity as the factor in free form, but their penetration through the skin and their stability is improved.
As a preferred embodiment, a liposomated cosmetic product is proposed which has different cosmetic forms such as nutritive cream, solution, serum, emulsion, suspension, etc. in which the different components may be found in the case of the cream in the following proportions of active ingredients and of liposomes:
MALUS DOMESTICA STEM CELL
CENTELLA ASIATICA EXTRACT
NICOTIANA BETHANIANA SH-
NICOTIANA BENTHAMIANA
NICOTIANA BETHAMIANA SH-
Another preferred embodiment is in the case of the serum where the different ingredients are found in the following proportions:
1-5
1-5
1-5
1-5
MALUS DOMESTICA STEM CELL
CENTELLA ASIATICA EXTRACT
NICOTIANA BENTHAMIANA
NICOTIANA BETHANIANA SH-
NICOTIANA BETHAMIANA SH-
Factors analyzed:
This assay is based on metabolic reduction of bromide 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT) carried out by the mitochondrial succinate dehydrogenase enzyme in a blue colored compound (formazan), allowing the mitochondrial functionality of the treated cells to be determined. This method has been very widely used to measure cell survival and proliferation.
The quantity of live cells is proportional to the quantity of formazan produced. This method was developed by Mosmann in 1983, modified in 1986 by Francois Denizot and Rita Lang.
% viability—DO cells treated×100/DO control cells
The objective of the wound healing assay is the study of cell migration. It is based on observing the behavior of a confluent cell monolayer on which a hole or wound has been previously made. The cells at the border of the hole move towards the opening until new cell-cell contacts are established, thus closing the wound.
The basic steps involve creating the wound or cell free area on the cell monolayer, the capture of images periodically during the experiment and the comparison of all the images to determine the velocity of cell migration.
The percentage of migration is obtained in the following manner:
% migration=(time measured 0−time measured X/time measured 0)*100
PCR in real time or quantitative PCR is a variation of standard PCR used for quantifying DNA or messenger RNA (mRNA) of a sample. Using specific sequence primers, it is possible to determine the number of copies or the relative quantity of a determined DNA or RNA sequence.
When PCR in real time is combined with a retro-transcription or RT reaction (RTPCR), the mRNA quantity of a sample may be determined by means of a relative quantification. Said quantification is termed relative if the relative quantity or ratio of mRNA of a specific gene is compared with respect to the mRNA quantity of a constitutive gene (endogenous control, GAPDH in this case) among different samples. This is what is termed as normalization of the specific gene expression or normalizing with respect to the different total concentration of RNA of the samples since if the quantity of endogenous control varies it is due to changes in the total RNA quantity used in the synthesis of cDNA, not to changes in its expression. For the quantification, the quantity of amplicon produced is measured in each cycle of PCR. The quantification of the product is produced by means of the addition of fluorophores which join to the amplicon in a quantitative manner such that the greater the product, the greater the fluorescence that will be emitted.
The quantification method which has been used is ΔΔCt in which the Cts of the tested gene and reference gene (ΔCt) are compared directly in each sample and subsequently the (ΔCt) of the experimental samples are compared with respect to the control sample, in order to apply said method it is necessary for the efficiencies of both genes to be similar.
1. Cell Proliferation
1.1 Cell Proliferation with HGH
In
In addition in
1.2 Cell Proliferation with GM-CSF
In
In addition in
1.3 Cell Proliferation with Follistatin
In
2. Cell Migration (Wound Healing)
2.1 Cell Migration with HGH
In
2.2. Cell Migration with GM-CSF
In
It should be highlighted that the results obtained with the migration assays are similar to those obtained in the cell proliferation assays and therefore they corroborate them.
3. Induction of Elastin Synthesis by Means of Measuring Transcripts of the Gene of the Elastin by Quantitative PCR
3.1 Induction of Elastic Synthesis by HGH
In
3.2 Induction of Elastin Synthesis by GM-CSF
In
4. Analysis of the Anti-Inflammatory Effect by Means of Measuring Transcripts of the Anti-Inflammatory Genes IL6 and TNFa BY QUANTITATIVE PCR
In this assay on the cells, a mild inflammation was induced on them with LPS prior to the treatment. To this end, medium with 200 ng/ml LPS was added to them, for three hours, it was removed and the medium with the factors was added.
4.1 Analysis of the Anti-Inflammatory Effect Induced by HGH
In the
4.2 Analysis of the Anti-Inflammatory Effect Induced by GM-CSF
In
With the nature of the present invention sufficiently described, all that remains to be added is that said invention may undergo certain variations in terms of components and percentages, provided that said alterations do not substantially vary the characteristics which are claimed below.
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/ES2014/070513 | 6/24/2014 | WO | 00 |