首页> 美国政府科技报告 >Regulated Expression of the RB 'Tumor Suppressor Gene' in Normal LymphocyteMitogenesis: Elevated Expression in Transformed Leukocytes and Role as a 'Status Quo' Gene
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Regulated Expression of the RB 'Tumor Suppressor Gene' in Normal LymphocyteMitogenesis: Elevated Expression in Transformed Leukocytes and Role as a 'Status Quo' Gene

机译:RB'肿瘤抑制基因'在正常淋巴细胞发生中的调节表达:转化白细胞中的表达升高和作为'现状'基因的作用

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Expression of the RB retinoblastoma tumor suppressor gene product is regulatedearly during the stimulation of normal human peripheral blood lymphocytes, suggesting a regulatory role for the amount of this protein in mitogenesis of normal cells. When normal human peripheral blood lymphocytes were mitogenically stimulated with pokeweed mitogen, bivariate flow cytometric measurements of cellular DNA and RB protein content showed an early decrease in the amount of RB protein per cell, anteceding the onset of S phase. A subsequent increase in the amount of RB protein per cell occurred with cell proliferation. Thus the amount of RB protein relative to the total cell mass underwent a biphasic response with mitogenesis. The resulting proliferating cells had slightly elevated level of RB protein per cell compared to the unstimulated cells.

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