Gamma interferon response in secondary Leishmania major infection: role of CD8+ T cells

Gamma interferon response in secondary Leishmania major infection: role of CD8+ T cells
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继发性利什曼原虫重度感染中的 γ 干扰素反应:CD8 T 细胞的作用

DOI:
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发表时间:
1993
影响因子:
3.1
通讯作者:
J. Louis
J. Louis
中科院分区:
医学2区
文献类型:
--
作者:
I. Müller;P. Kropf;R. Etges;J. Louis

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CD 8 + T细胞已被证明有助于在用硕大利什曼原虫攻击的免疫小鼠中发展的继发性病变的快速消退。在本研究中,我们直接评估了特异性CD 8 + T细胞在免疫小鼠再感染诱导的记忆反应中的参与。来自再感染免疫小鼠的淋巴细胞群体表现出显著的继发性γ干扰素(IFN-γ)应答。在遗传抗性免疫CBA小鼠和遗传易感免疫BALB/c小鼠中证明了产生IFN-γ的CD 8 + T细胞参与由二次感染激发引起的记忆应答,所述遗传抗性免疫CBA小鼠和遗传易感免疫BALB/c小鼠在初次感染的早期阶段通过施用抗CD 4单克隆抗体而呈现抗性。因此,CD 8 + T细胞在实验性小鼠皮肤利什曼病中的保护功能可能部分由它们分泌IFN-γ的能力来解释。在这种情况下,IFN-γ在再感染时的中和作用降低了利什曼特异性迟发型超敏反应,表明这种细胞因子参与了对利什曼原虫的免疫记忆的回忆。主要是在体内。
CD8+ T cells have been shown to contribute to the rapid resolution of secondary lesions developing in immune mice challenged with Leishmania major. In the present study, we assessed directly the participation of specific CD8+ T cells in the memory response induced in immune mice by reinfection. Lymphocyte populations from reinfected immune mice exhibit marked secondary gamma interferon (IFN-gamma) responses. The participation of IFN-gamma-producing CD8+ T cells in the memory response elicited by secondary infectious challenge was demonstrated in both genetically resistant immune CBA mice and genetically susceptible immune BALB/c mice that were rendered resistant by administration of anti-CD4 monoclonal antibody in the early phase of the primary infection. The protective function of CD8+ T cells in experimental murine cutaneous leishmaniasis might thus be explained in part by their ability to secrete IFN-gamma. In this context, the neutralization of IFN-gamma at the time of reinfection reduced the Leishmania-specific delayed-type hypersensitivity response, showing that this cytokine is involved in the recall of immunological memory to L. major in vivo.
DOI: --
发表时间: 1992
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Murray,HW;Squires,KE;Miralles,CD;Stoeckle,MY;Granger,AM;Granelli-Piperno,A;Bogdan,C
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体内 L3T4 T 细胞耗竭后,遗传易感小鼠对利什曼原虫的细胞和体液免疫。
DOI: --
发表时间: 1987
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
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DOI: --
发表时间: 1989
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
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通讯作者: Louis,JA
DOI: 10.4049/jimmunol.125.6.2665
发表时间: 1980-12
影响因子: 4.4
作者:
M. Sarmiento;A. Glasebrook;F. Fitch
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DOI: --
发表时间: 1985
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Murray,HW;Spitalny,GL;Nathan,CF
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