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首页> 外文期刊>Molecular and Cellular Biology >Growth factor-deprived BALB/c 3T3 murine fibroblasts can enter the S phase after induction of c-myc gene expression.
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Growth factor-deprived BALB/c 3T3 murine fibroblasts can enter the S phase after induction of c-myc gene expression.

机译:缺乏生长因子的BALB / c 3T3鼠成纤维细胞可在诱导c-myc基因表达后进入S期。

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Induction of quiescent BALB/c 3T3 murine fibroblasts by platelet-derived growth factor (PDGF) or fibroblast growth factor (FGFs) is accompanied by induction of c-myc gene expression. To study the role of c-myc in cell growth, we transfected BALB/c 3T3 cells with a plasmid construct containing a glucocorticoid-inducible c-myc gene. When these transfected cells were growth arrested in PDGF-FGF-freedefined medium, glucocorticoid treatment induced S-phase DNA synthesis. This induction of DNA synthesis was inefficient, and cell proliferation was not evident, suggesting that growth factors act through stimulation of c-myc expression together with other intracellular events.
机译:血小板衍生生长因子(PDGF)或成纤维细胞生长因子(FGFs)诱导静止的BALB / c 3T3鼠成纤维细胞伴随c-myc基因表达的诱导。为了研究c-myc在细胞生长中的作用,我们用含有糖皮质激素诱导的c-myc基因的质粒构建体转染了BALB / c 3T3细胞。当这些转染的细胞在无PDGF-FGF的特定培养基中生长停滞时,糖皮质激素治疗诱导S期DNA合成。 DNA合成的这种诱导是无效的,并且细胞增殖也不明显,表明生长因子通过刺激c-myc表达以及其他细胞内事件起作用。

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