Suppression of murine collagen-induced arthritis by targeted apoptosis of synovial neovasculature
| Autor: | Gerlag, D., Borges, E., Tak, P.P., Ellerby, H.M., Bredesen, D.E., Pasqualini, R., Ruoslahti, E., Firestein, G.S. |
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| Přispěvatelé: | Faculteit der Geneeskunde |
| Rok vydání: | 2001 |
| Předmět: |
Male
rheumatoid arthritis Integrins Clinical Sciences Immunology Apoptosis Binding Competitive collagen-induced arthritis Autoimmune Disease Mice Experimental angiogenesis Drug Delivery Systems Competitive Receptors In Situ Nick-End Labeling Animals Inbred DBA 2.1 Biological and endogenous factors Receptors Vitronectin Vitronectin Neovascularization Pathologic Neovascularization Pathologic Arthritis Inflammatory and immune system Synovial Membrane apoptosis Genetic Therapy Binding Arthritis Experimental Peptide Fragments Arthritis & Rheumatology Mice Inbred DBA 5.1 Pharmaceuticals Public Health and Health Services sense organs Collagen Oligopeptides Research Article Bacteriophage M13 |
| Zdroj: | Arthritis research, vol 3, iss 6 Arthritis Research Arthritis Research, 3(6), 357-361. BioMed Central |
| ISSN: | 1465-9905 |
| Popis: | Because angiogenesis plays a major role in the perpetuation of inflammatory arthritis, we explored a method for selectively targeting and destroying new synovial blood vessels. Mice with collagen-induced arthritis were injected intravenously with phage expressing an RGD motif. In addition, the RGD peptide (RGD-4C) was covalently linked to a proapoptotic heptapeptide dimer, D(KLAKLAK)2, and was systemically administered to mice with collagen-induced arthritis. A phage displaying an RGD-containing cyclic peptide (RGD-4C) that binds selectively to the alpha(v)beta3 and alpha(v)beta5 integrins accumulated in inflamed synovium but not in normal synovium. Homing of RGD-4C phage to inflamed synovium was inhibited by co-administration of soluble RGD-4C. Intravenous injections of the RGD-4C-D(KLAKLAK)2 chimeric peptide significantly decreased clinical arthritis and increased apoptosis of synovial blood vessels, whereas treatment with vehicle or uncoupled mixture of the RGD-4C and the untargeted proapoptotic peptide had no effect. Targeted apoptosis of synovial neovasculature can induce apoptosis and suppress clinical arthritis. This form of therapy has potential utility in the treatment of inflammatory arthritis. |
| Databáze: | OpenAIRE |
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