Bifunctional conjugate compositions and associated methods

Patent metadata

Field	Value
Publication number	US-10881718-B2
Application number	US-201615072559-A
Country	US
Kind code	B2
Filing date	Mar 17, 2016
Priority date	Jun 24, 2010
Publication date	Jan 5, 2021
Grant date	Jan 5, 2021

Abstract

Bifunctional conjugate compositions are provided comprising a Signal-1 moiety bound to a first polymer carrier, wherein the combined size of the Signal-1 moiety and the first polymer carrier is about 1 nanometer to about 500 nanometers; and a Signal-2 moiety bound to a second polymer carrier, wherein the combined size of the Signal-2 moiety and the second polymer carrier is about 1 nanometer to about 500 nanometers. In some embodiments, the Signal-1 moiety and the Signal-2 moiety are bound to the same polymer carrier. Associated methods are also provided.

First claim

What is claimed is:

1. A composition comprising:
a first conjugate comprising Signal-1 peptides bound to a first polymer carrier, wherein the first polymer carrier is a glycosaminoglycan, wherein the molecular weight of the first conjugate is from about 5 kDa to about 100 kDa, and wherein the size of the first conjugate is about 1 nanometer to about 10 nanometers.

2. The composition of claim 1 wherein the molecular weight of the first conjugate is about greater than 16.9 kDa to less than or equal to 80 kDa.

3. The composition of claim 1 wherein the molecular weight of the first conjugate is about 10 kDa to about 50 kDa.

4. The composition of claim 1 wherein the glycosaminoglycan is selected from the group consisting of: hyaluronic acid, chondroitin sulfate, dermatan sulfate, keratan sulfate, heparin, and heparin sulfate.

5. The composition of claim 1 wherein the Signal-1 peptides are insulin, PLP, MBP, MOG, GAD65 or are derived therefrom.

6. The composition of claim 1 further comprising a second conjugate comprising Signal-2 peptides bound to a second polymer carrier, wherein the second polymer carrier is a glycosaminoglycan, wherein the size of the second conjugate is about 1 nanometer to about 10 nanometers, and wherein no Signal-2 peptides are associated with the first conjugate and no Signal-1 peptides are associated with the second conjugate.

7. The composition of claim 6 wherein the Signal-2 peptides are an immune suppressor.

8. A method comprising administering to a subject in need thereof a therapeutically effective amount of composition comprising:
a first conjugate comprising Signal-1 peptides bound to a first polymer carrier, wherein the combined size of the first conjugate is about 1 nanometer to about 10 nanometers; and
a second conjugate comprising Signal-2 peptides hound to a second polymer carrier wherein the size of the second conjugate is about 1 nanometer to about 10 nanometers, wherein the first polymer carrier and the second polymer carrier are each a glycosaminoglycan, and wherein no Signal-2 peptides are associated with the first conjugate and no Signal-1 peptides are associated with the second conjugate.

9. The method of claim 8 wherein the molecular weight of the first conjugate and the second conjugate are each about 5 kDa to about 100 kDa.

10. The method of claim 8 wherein the molecular weight of the first conjugate and the second conjugate are each about 10 kDa to about 50 kDa.

11. The method of claim 8 wherein the Signal-1 peptides and the Signal-2 peptides are bound to the first polymer carrier and the second polymer, respectively, via one or more oxime bonds derived from a reaction of a compound comprising an aminooxy group and a compound comprising amide group.

12. The method claim 8 wherein the first polymer carrier, the second polymer carrier or both comprise a polymer selected from the group consisting of: hyaluronic acid, chondroitin sulfate, dermatan sulfate, keratan sulfate, heparin and heparin sulfate.

13. The method of claim 8 wherein the Signal-1 peptides are PLP, MBP, MUG or GAD65.

14. The method of claim 8 wherein the Signal-2 peptides are LABL, cLABL, IBR, cIBR IBR7.

15. The method of claim 8 wherein the Signal-2 peptides are an immune suppressor.

16. The method of claim 8 wherein the subject has an auto-immune disease.

17. A method comprising:
providing a polymer carrier comprising at least one reactive amide or aminooxy group; providing a Signal-1 peptide comprising at least one reactive amide or aminooxy group or a Signal-2 peptide comprising at least one reactive amide and reacting the polymer carrier with the Signal-1 peptide or the Signal-2 peptide to form a conjugate via a A-oxime bond wherein the polymer carrier is a glycosaminoglycan.

18. The method of claim 17 wherein the polymer carrier comprises a polymer selected from the group consisting of: hyaluronic acid, chondroitin sulfate, dermatan sulfate, keratan sulfate, heparin and heparin sulfate.

19. The method of claim 17 wherein the size of the conjugate is about 1 nanometers to about 10 nanometers.

20. The method of claim 17 wherein the molecular weight of the conjugate is about 5 kDa to about 100 kDa.

21. The method of claim 17 wherein the molecular weight of the conjugate is about 10 kDa to about 50 kDa.

22. The method of claim 17 wherein the Signal-1 peptide is PLP, MBP, MOG or GAD65.

23. The method of claim 17 wherein the Signal-2 peptide is LABL, cLABL, IBR, cIBR, or IBR7.

24. The method of claim 17 wherein the Signal-2 peptide is an immune suppressor.

25. The composition of claim 6 wherein the Signal-2 peptides are LABL, cLABL, IBR, cIBR, or IBR7.

Assignees

• Univ Kansas

Inventors

• Berkland Cory
• Sestak Joshua
• Siahaan Teruna J

Classifications

• A61K47/6939

  the polymer being a polysaccharide, e.g. starch, chitosan, chitin, cellulose or pectin · CPC title

• A61K47/6937

  the polymer being PLGA, PLA or polyglycolic acid · CPC title

• A61K47/61

  the organic macromolecular compound being a polysaccharide or a derivative thereof · CPC title

• A61K47/593

  Polyesters, e.g. PLGA or polylactide-co-glycolide · CPC title

• A61K47/6933

  the polymer being obtained by reactions only involving carbon to carbon, e.g. poly(meth)acrylate, polystyrene, polyvinylpyrrolidone or polyvinylalcohol · CPC title