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Regulation of Cytokine Production by gammadelta T Cells

机译:由gammadelta T调节细胞因子的生产细胞

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摘要

A minority of peripheral blood T lymphocytes used heterodimeric T cell receptor (TCR) composed of a Vgamma9 chain associated with V82, These circulating VY9V82 gammadelta T cells mainly recognize low-molecular-mass non-peptide antigens derived from microbes and plants in a MHC-unrestricted manner. Furthermore, they produce rapidly after antigen contact cytotoxic molecules and cytokines, thereby activating innate immune cells, facilitating adaptive immune responses of alphabeta T cells, protecting the host against infections with certain microbial pathogens, and playing a role in tumor defense. Another gammadelta5 T cell subset underrepresented in the peripheral blood expresses Vdekta1 chain associated with variable Vgamma elements and comprises the major y5 T cell population in epithelial tissues such as the small intestine Homologous gammadelta T cells are found in the mouse in vagina, uterus, lung and skin. V81 y5 T cells mainly recognize antigens restricted to certain cell types of epithelial origin, which are induced upon stress, infection, inflammation and tumor growth, and thus play a role in immunosurveillance against malignancy, pathogen eradication, and wound healing. Several reports suggest that gammadelta T cells are immunregulatory cells, interacting and modulating the activity of other immune cells directly or by cytokine production. Here we summarize the current knowledge on the role of cytokines produced by y8 T cells and their ability to influence and regulate other cells of the immune system.
机译:少数的外周血T淋巴细胞heterodimeric T细胞受体(TCR)组成的Vgamma9链与V82有关,这些主要循环VY9V82 gammadelta T细胞识别low-molecular-mass non-peptide抗原来源于微生物和植物中MHC-unrestricted方式。抗原接触后迅速产生细胞毒性分子和细胞因子,从而激活先天免疫细胞,促进适应性免疫alphabeta T细胞反应,保护主机对某些微生物感染病原体,扮演一个角色在肿瘤的防御。另一个gammadelta5 T细胞子集外周血中弱势表达Vdekta1链相关的变量Vgamma元素,包括主要的日元T细胞人口等上皮组织小肠同源gammadelta T细胞发现老鼠在阴道、子宫、肺癌和的皮肤。限于特定细胞类型的上皮起源,诱导应力后,感染,炎症和肿瘤的生长,从而发挥在对恶性肿瘤免疫监视作用,消灭病原体,伤口愈合。报告显示,gammadelta T细胞immunregulatory细胞相互作用和调节直接或通过其他免疫细胞的活动细胞因子的生产。目前对细胞因子的作用日元产生的T细胞和他们的能力影响和调节其他细胞的免疫系统。

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