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Relationship between diurnal rhythm of cell cycle and interferon receptor expression in implanted-tumor cells.

机译:植入肿瘤细胞的细胞周期昼夜节律与干扰素受体表达之间的关系。

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摘要

Whether the diurnal rhythm of cell cycle is associated with that of interferon-alpha/beta receptor (IFNAR) expression was investigated in implanted-tumor cells. The expression of IFNAR mRNA significantly increased when the proportion of tumor cells in DNA synthesis (S) phase increased in vitro. A diurnal rhythm was observed for cell cycle distribution in implanted-tumor cells. The specific binding of interferon-alpha to receptor and IFNAR mRNA increased when the proportion of tumor cells in S phase increased in vivo. The time-dependent expression of IFNAR was supported by that of transcription factor level induced by interferon-beta. The present result suggests that the rhythm of IFNAR expression is closely related to that of cell cycle distribution in implanted-tumor cells.
机译:在植入的肿瘤细胞中研究了细胞周期的昼夜节律是否与干扰素-α/β受体(IFNAR)的表达有关。当肿瘤细胞在DNA合成(S)阶段的比例在体外增加时,IFNAR mRNA的表达显着增加。在植入的肿瘤细胞中观察到昼夜节律的细胞周期分布。当体内S期肿瘤细胞的比例增加时,干扰素-α与受体和IFNAR mRNA的特异性结合增加。 IFNAR的时间依赖性表达受干扰素-β诱导的转录因子水平的支持。目前的结果表明,IFNAR表达的节奏与植入肿瘤细胞中细胞周期分布的节奏密切相关。

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