Inhibitory effects of ZSTK474, a phosphatidylinositol 3-kinase inhibitor, on adjuvant-induced arthritis in rats
| Autor: | Naoto Tamura, Shinichi Yaguchi, Asako Sasaki, Fumitaka Kamachi, Jumpei Enami, Kazuhiko Haruta, Shigeyuki Mori, Masakazu Nagamine, Shigeto Kobayashi, Takao Yamori, Yoshinari Takasaki |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Male
musculoskeletal diseases T cell Freund's Adjuvant Immunology Arthritis Pharmacology Dinoprostone Mycobacterium Flow cytometry Arthritis Rheumatoid Mice chemistry.chemical_compound medicine Animals Lymphocytes Phosphatidylinositol Prostaglandin E2 Protein Kinase Inhibitors Cell Proliferation Phosphoinositide-3 Kinase Inhibitors medicine.diagnostic_test Triazines Chemistry medicine.disease Arthritis Experimental In vitro Rats Oncogene Protein v-akt medicine.anatomical_structure Mice Inbred DBA Rats Inbred Lew Freund's adjuvant Antirheumatic Agents Cytokines Female Lymph Nodes Interleukin 17 Spleen medicine.drug |
| Zdroj: | Inflammation Research. 61:551-562 |
| ISSN: | 1420-908X 1023-3830 |
| Popis: | We examined the effects of ZSTK474, a phosphatidylinositol 3-kinase (PI3K) inhibitor, on adjuvant-induced arthritis (AIA).AIA was induced in Lewis rats by subcutaneous administration of Freund's complete adjuvant at the base of the tail on day 0. ZSTK474 was orally administered once daily from day 10. The severity of AIA was assessed by measuring the hind paw volume. The number of lymphocytes in inguinal lymph nodes (ILN) was determined by flow cytometry. The in vitro effects of ZSTK474 on the cell proliferation, and the cytokines and prostaglandin E(2) (PGE(2)) production were evaluated by BrdU method, ELISA and cytometric beads array.ZSTK474 ameliorated the progression of AIA. The temporary increases in the number of T cells in ILN, which occurred along with the appearance of arthritis, were inhibited in the ZSTK474-treated groups. In vitro studies revealed that ZSTK474 inhibited the production of IFNγ and IL-17 in concanavalin A-activated T cells. In vitro studies further revealed that ZSTK474 inhibited the proliferation and PGE(2) production by fibroblast-like synovial cells (FLS).ZSTK474 demonstrated prophylactic efficacy in a rat model of rheumatoid arthritis (RA) through inhibition of T cell and FLS functions. It was suggested that the inhibitors of PI3K have therapeutic potential for RA. |
| Databáze: | OpenAIRE |
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