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首页> 外文期刊>Cytokine >A role for potassium in TNF-induced apoptosis and gene-induction in human and rodent tumour cell lines.
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A role for potassium in TNF-induced apoptosis and gene-induction in human and rodent tumour cell lines.

机译:钾在人和啮齿动物肿瘤细胞系中由TNF诱导的细胞凋亡和基因诱导中的作用。

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摘要

Rat/mouse T cell hybridoma-derived PC60 R55/R75 cells were used as a model to study the role of intracellular potassium in TNF-induced apoptosis and gene induction. A reduction of intracellular potassium with nigericin or valinomycin (ionophores), or ouabain (Na(+)/K(+)-ATPase inhibitor) sensitized PC60 R55/R75 cells to TNF-induced apoptosis. TNF-induced GM-CSF release in PC60 R55/R75 cells was enhanced by nigericin or ouabain. Similar results were obtained with human cervix carcinoma cells HeLaH21 exposed to TNF. These results suggest a role for intracellular potassium in TNF-induced apoptosis and gene induction. Copyright 2000 Academic Press.
机译:使用大鼠/小鼠T细胞杂交瘤细胞衍生的PC60 R55 / R75细胞作为模型,研究细胞内钾在TNF诱导的细胞凋亡和基因诱导中的作用。用尼日利亚霉素或缬氨霉素(离子载体)或哇巴因(Na(+)/ K(+)-ATPase抑制剂)减少细胞内钾,可使PC60 R55 / R75细胞对TNF诱导的细胞凋亡敏感。尼日利亚或哇巴因可增强PC60 R55 / R75细胞中TNF诱导的GM-CSF释放。用暴露于TNF的人宫颈癌细胞HeLaH21获得了相似的结果。这些结果表明细胞内钾在TNF诱导的细胞凋亡和基因诱导中的作用。版权所有2000学术出版社。

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