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자료유형
학술저널
저자정보
저널정보
대한면역학회 Immune Network Immune Network Vol.5 No.2
발행연도
2005.6
수록면
78 - 88 (11page)

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Collagen-induced arthritis (CIA) in mice is animal model of autoimmune disease known as rheumatic arthritis in human. We investigated CII-specific CD4+ T cell receptor usage in CIA mice. Methods: In CIA model, draining lymph node (dLN) CD4+ T cells and splenocytes at 3<sup>rd</sup>, 5<sup>th</sup>,8<sup>th</sup> week, we investigated CII-specific T cell proliferation, production of IL-17, IFN-γ, TNF-α, IL-4 and IL-10. And we also performed anti-CII IgG Ab measurements in serum level, TCRV β usage and T cell clonality with RT-PCR-SSCP analysis. Also, we performed proliferative response against CII when CII-specific T cell subset is deleted. Results: CIA mice showed more increase in the serum level of anti-CII IgG than normal mice after induction of arthritis. And the level of anti-CII IgG2a in CIA mice was increased after 3<sup>rd</sup> week after primary immunization, while anti-CII IgG1 was decreased. Draining LN CD4+ T cells have proliferated against CII stimulation at 3<sup>rd</sup> week after 1<sup>st</sup>immunization. CD4+T cells derived from dLN of CIA mice produced proinflammatory cytokine IFN-γ, IL-17 etc. Draining LN CD4 T cells of CIA presented higher proportion of CD4+V β3+subset compared to those of normal mice at 3<sup>rd</sup> week after 1<sup>st</sup> immunization, and they were increased in proportion by CII stimulation. Draining LN CD4+ T cells without TCRV β3+/Vβ8.1/8.2+/Vβ10b+cells were not responsive against CII stimulation. But, CII-reactive response of TCRV β3-/Vβ8.1/8.2-/Vβ10b- T cells was recovered when Vβ3+ T cells were added in culture. Conclusion: Our results indicate that CD4+Vβ3+ T cells are selectively expanded in dLN of CIA mice, and their recovery upon CII re-stimulation in vitro, as well as the production Th1-type cytokines, may play pivotal role in CIA pathogenesis.

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