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CD8(+) T细胞在人类结核病中对γ干扰素产生的作用。

Contribution of CD8(+) T cells to gamma interferon production in human tuberculosis.

作者信息

Shams H, Wizel B, Weis S E, Samten B, Barnes P F

机构信息

Center for Pulmonary and Infectious Disease Control, University of Texas Health Center, Tyler 75708-3154, USA.

出版信息

Infect Immun. 2001 May;69(5):3497-501. doi: 10.1128/IAI.69.5.3497-3501.2001.

Abstract

The proportions of peripheral blood mononuclear cells (PBMC), CD4(+) T cells, and CD8(+) T cells that produce gamma interferon (IFN-gamma) in response to Mycobacterium tuberculosis were markedly reduced in tuberculosis patients, particularly in those with severe disease. Depletion of CD4(+) but not CD8(+) cells prior to stimulation of PBMC with M. tuberculosis abolished IFN-gamma production. These results show that (i) IFN-gamma production by CD8(+) and CD4(+) cells correlates with the clinical manifestations of M. tuberculosis infection and (ii) IFN-gamma production by CD8(+) cells depends on CD4(+) cells.

摘要

结核病患者中,因结核分枝杆菌刺激而产生γ干扰素(IFN-γ)的外周血单个核细胞(PBMC)、CD4(+) T细胞和CD8(+) T细胞的比例显著降低,尤其是重症患者。在用结核分枝杆菌刺激PBMC之前去除CD4(+) 细胞而非CD8(+) 细胞,可消除IFN-γ的产生。这些结果表明:(i)CD8(+) 和CD4(+) 细胞产生IFN-γ与结核分枝杆菌感染的临床表现相关;(ii)CD8(+) 细胞产生IFN-γ依赖于CD4(+) 细胞。

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