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Identification of two U937 cell sublines exhibiting different patterns of response to tumour necrosis factor.

机译:鉴定出两个U937细胞亚系,它们对肿瘤坏死因子的反应模式不同。

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The monocytic cell line U937 is a frequently used model in studies on the cytotoxic effect of tumour necrosis factor (TNF). Two sublines of this cell line, termed U937(G) and U937(M), revealing different patterns of response to this cytokine, have been identified. The U937(G) cells, similarly to the cells obtained from ATCC, were resistant to the cytotoxic action of TNF in the absence of the protein-synthesis blocker cycloheximide (CHX). The U937(M) cells, however, were sensitive to the cytotoxic action of TNF both in the presence and absence of cycloheximide. Genetic analysis of the U937 sublines confirmed their common origin. The described U937 sublines may be useful models for analysis of the mechanisms of response to TNF. Additionally, our observation underscores the variability of the U937 cell line, which is described by most authors as a TNF-sensitive line. Copyright 2001 Academic Press.
机译:单核细胞系U937是研究肿瘤坏死因子(TNF)的细胞毒性作用的常用模型。已经鉴定出该细胞系的两个亚系,分别称为U937(G)和U937(M),揭示了对该细胞因子的不同反应模式。 U937(G)细胞类似于从ATCC获得的细胞,在没有蛋白质合成阻滞剂环己酰亚胺(CHX)的情况下,对TNF的细胞毒性作用具有抗性。但是,无论是否存在环己酰亚胺,U937(M)细胞对TNF的细胞毒性作用均敏感。 U937子系的遗传分析证实了它们的共同起源。所描述的U937子系对于分析TNF的反应机制可能是有用的模型。此外,我们的观察结果强调了U937细胞系的变异性,大多数作者将其描述为TNF敏感系。版权所有2001,学术出版社。

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