Purposeful movement of human migratory cells away from an agent source
This invention relates to methods and compositions for modulating movement of eukaryotic cells with migratory capacity. More specifically, the invention relates to methods and compositions for modulating movement of cells of hematopoietic, neural, epithelial, or mesenchymal origin, in a specific site in a subject. The foregoing are useful, inter alia, in the treatment of conditions characterized by a need to modulate migratory-cell movement associated with specific sites in a subject. More specifically, specific sites include sites of inflammation and modulation of migratory-cell movement is movement away from an agent source, or repulsion. Other sites include tumor sites, sites of pathogenic infection, and germ cell bearing sites.
1. A method of repelling immune cells from a material surface of an implant in a subject comprising coating a material surface with an amount of a fugetactic agent effective to repel immune cells from the material surface, wherein said fugetactic agent is a polypeptide.
2. The method of claim 1 , wherein the implant comprises synthetic material.
3. The method of claim 1 , wherein the implant comprises organic tissue.
4. The method of claim 3 , wherein the organic tissue is allogeneic.
5. The method of claim 3 , wherein the organic tissue is xenogeneic.
6. The method of claim 1 , wherein the implant is selected from the group consisting of a dental implant, orthopedic prosthetic implant, valve and stent.
7. The method of claim 1 , wherein the implant is an organ or vasculature.
8. The method of claim 1 , wherein the material surface is further coated with an agent selected from the group consisting of a cell-growth potentiating agent, anti-infective agent, anti-inflammatory agent and immunosuppressant.
9. The method of claim 1 , wherein the subject is a human.
10. The method of claim 9 , wherein the subject has an autoimmune disease.
11. The method of claim 1 , wherein the fugetactic agent is selected from the group consisting of: a CXCR-4 ligand and thymic stromal-cell-derived polypeptide factor.
12. The method of claim 1 , wherein the fugetactic agent is SDF-1 alpha.
13. A method of promoting migration of cells away from a transplanted tissue in a subject comprising locally administering to the subject a fugetactic agent in an amount effective to promote migration of cells away from the transplanted tissue, wherein said fugetactic agent is a polypeptide.
14. The method of claim 13 , wherein the transplanted tissue is coated with the fugetactic agent.
15. The method of claim 14 , wherein the subject is a human.
16. The method of claim 13 , wherein the fugetactic agent is selected from the group consisting of: a CXCR-4 ligand and thymic stromal-cell-derived polypeptide factor.
17. The method of claim 13 , wherein the fugetactic agent is SDF-1 alpha.