Claims
- 1. A backbone cyclized analog of somatostatin of three to twenty-four amino acids that incorporates at least one building unit, said building unit containing one nitrogen atom of the peptide backbone connected to a bridging group comprising an amide, thioether, thioester, disulfide, urea, carbamate, or sulfonamide, wherein at least one building unit is connected via the bridging group to form a cyclic structure with a moiety selected from the group consisting of a second building unit, the side chain of an amino acid residue of the sequence or a terminal amino acid residue, further comprising a chelating moiety covalently bound to said backbone cyclized analog.
- 2. The backbone cyclized analog of claim 1 wherein the chelating moiety is selected from a moiety comprising four donor atoms or eight donor atoms.
- 3. The somatostatin analog of claim 4 wherein the chelating moiety is selected from 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) and diethylenetriaminepentaacetic acid (DTPA).
- 4. The somatostatin analog of claim 1 wherein the backbone cyclized somatostatin analog having the general Formula No. 6
- 5. The backbone cyclized analog of claim 4 selected from the group of:
1,3-dicarbonyl-Cyclopropane*-Tyr-Trp-(D)Trp-Lys-Thr-Phe-GlyN-NH2; Glutamic acid*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyN3-NH2; Diaminoethane*-CO-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH2; Diaminoethane*-CO-Tyr-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH2; Diaminopropan*-CO-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH2; Diaminoethane*-CO-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH2; GABA*-Phe-Trp-(D)Trp-(D)Lys-Thr-Phe-GlyC3-NH2; GABA*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH2; wherein the asterisk denotes that the bridging group is connected between the free functional group of that residue and the Nα-ω-functionalized derivative of the Gly residue.
- 6. The somatostatin analog of claim 1 wherein the backbone cyclized somatostatin analog having the general Formula No. 7
- 7. The somatostatin analog of claim 1 wherein the backbone cyclized somatostatin analog having the general Formula No. 8
- 8. The somatostatin analog of claim 1 having the general Formula No. 5:
- 9. The somatostatin analog of claim 8 wherein Q is selected from the group of a direct bond, diaminopropionic acid (Dpr), diaminobutyric acid (Dab), gamma aminobutyric acid (GABA), aminohexanoic acid, polyethylene glycol (PEG), 4-aminobutyric acid, 6-aminocaproic acid, and β-alanine, and Z is selected from the group of mercaptoacetyl-Gly-Gly-Gly (MAG3), 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) and diethylenetriaminepentaacetic acid (DTPA).
- 10. The somatostatin analog of claim 9 wherein Z is selected from the group of mercaptoacetyl-Gly-Gly-Gly (MAG3), 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) and diethylenetriaminepentaacetic acid (DTPA); and Q is selected from a direct bond and Gly.
- 11. The somatostatin analog of claim 8 wherein the backbone cyclized somatostatin analog having the general Formula No. 9
- 12. The somatostatin analog of claim 11 wherein the backbone cyclized somatostatin analog is selected from the group of:
MAG3-PheC3**-Cys*-Phe-(D)Trp-Lys-The-Cys*-PheN3**-NH2; MA-Dap(MA)-Gly-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; MA-Dap(Gly)-Gly-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; Gly-Dap(MA)-Gly-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; MA-Dap(MA)-GABA-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; MA-Dap(Gly)-GABA-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; Gly-Dap(MA)-GABA-Phe(C3**)-Cys*-Phe-(D)Tp-Lys-Thr-Cys*-Phe(N3**)-NH2; wherein MA denotes mercaptoacetyl, Dpr denotes diaminopropionic acid, Dab denotes diaminobutyric acid, GABA denotes gamma aminobutyric acid, one asterisk denotes that the two cysteines form a disulfide bridge, and two asterisks denotes that a second bridging group is connected between the Nα-ω-functionalized derivative of marked residues.
- 13. The somatostatin analog of claim 8 wherein the backbone cyclized somatostatin analog having the general Formula No. 10
- 14. The somatostatin analog of claim 13 wherein:
X is amide; Q is selected from the group of a direct bond, Gly, P-Ala and GABA; Z is DOTA or DTPA; R5 is diaminobutyric acid (Dab); R6 is Phe; R7 is Trp; R8 is (D)Trp; R9 is Lys; R10 is Thr; R11 is Phe; R12 is Gly; and n is 3.
- 15. The somatostatin analog of claim 13 wherein the backbone cyclized somatostatin analog is selected from the group of:
In-DTPA-Gly-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-β-Ala-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-GABA-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-5-aminopentanoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-3-aminomethylbenzoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-Gly-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-βAla-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-GABA-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-5-aminopentanoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-6-aminohexanoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Gly-Gly-Gly-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Gly-Gly-Gly-Gly-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Gly-Gly-Gly-GABA-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Gly-Gly-Gly-5-aminopentanoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; wherein MA denotes mercaptoacetyl, Dpr denotes diaminopropionic acid, Dab denotes diaminobutyric acid, GABA denotes gamma aminobutyric acid, and the asterisk denotes that the bridging group is connected between the free functional group of that residue and the Nα-ω-functionalized derivative of the Gly residue.
- 16. The backbone cyclized analog of claim 1 wherein the chelating moiety further comprises a complex with a radioisotope.
- 17. The somatostatin analog according to claim 16 wherein the radioisotope is selected from the group consisting of 99mTc, 186Re, 188Re, indium, yttrium, lutetium, gallium and gadolinium.
- 18. A method for diagnosing or treating cancer and allograft rejection comprising administration of a backbone cyclized analog of somatostatin of three to twenty-four amino acids that incorporates at least one building unit, said building unit containing one nitrogen atom of the peptide backbone connected to a bridging group comprising an amide, thioether, thioester, disulfide, urea, carbamate, or sulfonamide, wherein at least one building unit is connected via the bridging group to form a cyclic structure with a moiety selected from the group consisting of a second building unit, the side chain of an amino acid residue of the sequence or a terminal amino acid residue; a chelating moiety covalently bound to said backbone cyclized analog; and a pharmaceutically acceptable carrier.
- 19. The method according to claim 18 wherein the backbone cyclic analog is used for imaging metastases.
- 20. The method according to claim 18 wherein the backbone cyclic analog is labeled with a detectable tracer.
- 21. The method according to claim 18 wherein the chelating moiety is selected from 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) and diethylenetriaminepentaacetic acid (DTPA).
- 22. The method according to claim 18 wherein the backbone cyclized somatostatin analog having the general Formula No. 6
- 23. The method according to claim 22 selected from the group of:
1,3-dicarbonyl-Cyclopropane*-Tyr-Trp-(D)Trp-Lys-Thr-Phe-GlyN3-NH2; Glutamic acid*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyN3-NH2; Diaminoethane*-CO-Phe-Trp-(D)Tp-Lys-Thr-Phe-GlyC3-NH2; Diaminoethane*-CO-Tyr-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH2; Diaminopropan*-CO-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH2; Diaminoethane*-CO-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH2; GABA*-Phe-Trp-(D)Trp-(D)Lys-Thr-Phe-GlyC3-NH2; GABA*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3-NH2; wherein GABA denotes gamma aminobutyric acid, and the asterisk denotes that the bridging group is connected between the free functional group of that residue and the Nα-ω-functionalized derivative of the Gly residue.
- 24. The method according to claim 18 wherein the backbone cyclized somatostatin analog having the general Formula No. 7
- 25. The method according to claim 18 wherein the backbone cyclized somatostatin analog having the general Formula No. 8
- 26. The method according to claim 18 having the general Formula No. 5:
- 27. The method according to claim 26 wherein Q is selected from the group of a direct bond, diaminopropionic acid (Dpr), diaminobutyric acid (Dab), gamma aminobutyric acid (GABA), aminohexanoic acid, polyethylene glycol (PEG), 4-aminobutyric acid, 6-aminocaproic acid, and p-alanine, and Z is selected from the group of mercaptoacetyl-Gly-Gly-Gly (MAG3), 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) and diethylenetriaminepentaacetic acid (DTPA).
- 28. The method according to claim 27 wherein Z is selected from the group of mercaptoacetyl-Gly-Gly-Gly (MAG3), 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) and diethylenetriaminepentaacetic acid (DTPA); and Q is selected from a direct bond or Gly.
- 29. The method according to claim 26 wherein the backbone cyclized somatostatin analog having the general Formula No. 9
- 30. The method according to claim 29 wherein the backbone cyclized somatostatin analog is selected from the group of:
MAG3-PheC3**-Cys*-Phe-(D)Trp-Lys-The-Cys*-PheN3**-NH2; MA-Dap(MA)-Gly-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; MA-Dap(Gly)-Gly-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; Gly-Dap(MA)-Gly-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; MA-Dap(MA)-GABA-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; MA-Dap(Gly)-GABA-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; Gly-Dap(MA)-GABA-Phe(C3**)-Cys*-Phe-(D)Trp-Lys-Thr-Cys*-Phe(N3**)-NH2; wherein MA denotes mercaptoacetyl, Dab denotes diaminobutyric acid, GABA denotes gamma aminobutyric acid, and one asterisk denotes that the two form a disulfide bridge, and two asterisks denotes that a second bridging group is connected between the Nα-ω-functionalized derivative of marked residues.
- 31. The method according to claim 26 wherein the backbone cyclized somatostatin analog having the general Formula No. 10
- 32. The method according to claim 31 wherein:
X is amide; Q is selected from the group of a direct bond, Gly, P-Ala and GABA; Z is DOTA or DTPA; R5 is diaminobutyric acid (Dab); R6 is Phe; R7 is Trp; R8 is (D)Trp; R9 is Lys; R10 is Thr; R11 is Phe; R12 is Gly; and n is 3.
- 33. The method according to claim 31 wherein the backbone cyclized somatostatin analog is selected from the group of:
In-DTPA-Gly-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-P-Ala-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-GABA-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-5-aminopentanoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; In-DTPA-3-aminomethylbenzoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-Gly-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-Ala-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-GABA-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-5-aminopentanoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Dpr(MA)-6-aminohexanoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Gly-Gly-Gly-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Gly-Gly-Gly-Gly-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GyC3*-NH2; ReO-MA-Gly-Gly-Gly-GABA-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; ReO-MA-Gly-Gly-Gly-5-aminopentanoic acid-Dab*-Phe-Trp-(D)Trp-Lys-Thr-Phe-GlyC3*-NH2; wherein MA denotes mercaptoacetyl, Dpr denotes diaminopropionic acid, Dab denotes diaminobutyric acid, GABA denotes gamma aminobutyric acid, DTPA denotes diethylenetriaminepentaacetic acid, and the asterisk denotes that the bridging group is connected between the free functional group of that residue and the N-(o-functionalized derivative of the Gly residue.
- 34. The method according to claim 18 wherein the chelating moiety further comprises a complex with a radioisotope.
- 35. The method according to claim 34 wherein the radioisotope is selected from the group consisting of 99mTc, 186Re, 88Re, indium, yttrium, lutetium, gallium and gadolinium.
- 36. The method according to claim 18 wherein the backbone cyclic analog is selective for at least one somatostatin receptor subtype.
- 37. A method for diagnosing, treating or preventing of disorders selected from the group consisting of cancers, autoimmune diseases, endocrine disorders, diabetes-associated complications, gastrointestinal disorders, inflammatory diseases, pancreatitis, atherosclerosis, restenosis, allograft rejection, and post-surgical pain, comprising administering to a mammal in need thereof a pharmaceutical composition comprising a therapeutically effective amount of a backbone cyclized somatostatin analog according to claim 1.
- 38. The method according to claim 37 wherein the backbone cyclic analog is selective for at least one somatostatin receptor subtype.
- 39. A kit for preparing a scintigraphic imaging agent for imaging sites within a mammalian body, said kit comprising a backbone cyclized analog of somatostatin and a chelating moiety covalently bound to said backbone cyclized analog.
Priority Claims (1)
Number |
Date |
Country |
Kind |
141276 |
Feb 2001 |
IL |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of International application PCT/IL02/00091 filed Feb. 4, 2002, the entire content of which is expressly incorporated herein by reference thereto.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/IL02/00091 |
Feb 2002 |
US |
Child |
10634496 |
Aug 2003 |
US |