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可诱导共刺激分子的研究进展 被引量:4

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摘要 可诱导共刺激分子 (InducibleCostimulatoryMolecule ,ICOS)是新发现的表达于活化T细胞的共刺激分子 ,属CD2 8/CTLA 4家族。ICOS的小鼠配体B7RP 1和人类配体B7 H2具有不同的表达形式和条件。人类ICOS通路可被抗原 TCR信号和IL 2激活。该共刺激通路诱导T细胞分化、增殖并分泌IL 4、IL 10、IFN γ和TNF γ等细胞因子 ,对B细胞和CTL细胞免疫应答也有一定的影响。阻断ICOS通路会引起T细胞凋亡。ICOS与CD2 8通路无功能交叉性 ,在免疫应答过程中具有重要而且独特的作用。
作者 张桦
出处 《国外医学(免疫学分册)》 2003年第1期14-17,共4页 Foreign Medical Sciences(Section of Immunology Foreign Medical Sciences)
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同被引文献52

  • 1Rutitzky LI, zkaynak E, Rottman JB, et al. Disruption of the ICOS-B7RP-1 costimulatory pathway leads to enhanced hepatic immunopathology and increased gamma interferon production by CD4 T cells in murine schistosomiasis. Infect Immun,2003,71(7):4040-4044.
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