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细胞周期抑制剂p27^(kipl)与肿瘤

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摘要 细胞周期有严格的顺序,由4个期即G_1→S→G_2→M构成。通过细胞周期,细胞实现DNA的复制和姐妹染色单体的平均分配。这些过程受到信号传导途径和反馈径路的精确调控,其正常与否和细胞以及个体的生长、分化、衰老、癌变密切相关。细胞周期中G_1→S和G_2→M是两个重要的转换时相。目前认为Rb蛋白的磷酸化可促使DNA合成,使细胞从G_1期进入S期。而Rb蛋白的磷酸化,受活性细胞周期索依赖性激酶家族(CDKS)所催化。CDKS有正反两种调控因子。
作者 江洪 吕大同
出处 《中国医学文摘(肿瘤学)》 2000年第1期77-78,83,共3页 Journal of Chinese Medical Abstracts·Oncology
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参考文献10

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