1996 Fiscal Year Final Research Report Summary
Analysis of hypothalamic-pituitary-adrenal axis dysfunction in rheumatoid arthritis
| Project/Area Number |
07670536
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
内科学一般
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| Research Institution | Kyoto Prefectural University of Medicine |
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Principal Investigator |
SANO Hajime Kyoto Prefectural University of Medicine First Department of Internal Medicine Assistant Professor, 医学部, 助手 (00196304)
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| Project Period (FY) |
1995 – 1996
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| Keywords | Rheumatoid arthritis / Corticotropin-releasing hormone / beta-endorphin / neuropeptides / Synovium / Alzet pump / Adjuvant arthritis / Hypothalamic-pituitary-adrenal axis dysfunction |
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| Research Abstract |
We examined hypothalamic-pituitary-adrenal (HPA) axis dysfunction in the pathogenesis of rheumatoid arthritis in human and adjuvant or SCW arthritis in rats.
1) CRH and beta-endorphin were expressed in RA synovia (lining cell layr, inflammatory mononuclear cells, fibroblast-like cells, blood vessels) using immunohistochemistry, PCR method and in situ hybridization. 2) The expression of CRH and beta-endorphin in RA synovia was significantly increased compared to osteoarthritis (OA) synovia. 3) CRH mRNA was also expressed in lining cell layr, inflammatory mononuclear cells, fibroblast-like cells and blood vessels of RA patients 4) CRH and beta-endorphin were also expressed in synovium, cartilage and skin in model rats for RA (SCW or adjuvant arthritis). 5) Glucocorticoid suppressed SCW and adjuvant arthritis in Lewis rats as well as CRH and beta-endorphin expression. 6) Injection of anti-CRH antibody or anti-beta-endorphin suppressed arthritis scores in adjuvant-induced Lewis rats (40-50%). 7) Anti-CRH antibody or anti-beta-endorphin suppressed CRH and beta-endorphin in synovium and cartilage.
These data suggest ; 1) CRH and beta-endorphin function as a local mediator of inflammatory arthritis, 2) CRH and beta-endorphin play a role in the pathogenesis of RA.3) Antibodies against CRH and beta-endorphin may be used for therapy of RA.
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[Publications] Crofford, L.J., Sano, H., Karalis, K., Webster, E.A., Friedman, T.C., Chrousos, G.P., Wilder, R.L.: "Local expression of corticotropin releasing hormone in inflammatory arthritis." Ann. N.Y.Acad. Sci.77. 459-471 (1995)
Description
「研究成果報告書概要(欧文)」より
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[Publications] Sano, H., Hashiramoto, A., Yamada, R., Fukui, W., Miyazaki, S., Mukai, S., Kimura, S., Asai, K., Kato, H., Kondo, M.Chrousos, G.P.: "Hypothalamic-pituitary-adrenal axis dysfunction in rheumatoid arthritis-beta-endorphin-." Jpn. Clin. Immunol.19. 661-663 (1996)
Description
「研究成果報告書概要(欧文)」より
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[Publications] Sano, H., Kawahito, Y., Hashiramoto, A., Miyazaki, S., Yamada, R., Fukui, W., Kondo, M.: "Hypothalamic-pituitary-adrenal axis dysfunction in rheumatoid arthritis-CRH and beta-endorphin-." Clin Immunol.(in press.).
Description
「研究成果報告書概要(欧文)」より
