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Methods for Efficient Immortalization Of Normal Human Cells

机译:正常人细胞有效永生的方法

摘要

Methods for inducing non-clonal immortalization of normal epithelial cells by directly targeting the two main senescence barriers encountered by cultured epithelial cells. In human mammary epithelial cells (HMEC), the stress-associated stasis barrier was bypassed and the replicative senescence barrier, a consequence of critically shortened telomeres, was bypassed in post-stasis HMEC. Early passage non-clonal immortalized lines exhibited normal karyotypes. Methods of efficient HMEC immortalization, in the absence of “passenger” genomic errors, should facilitate examination of telomerase regulation, immortalization during human carcinoma progression, and methods for screening for toxic and environmental effect on progression.
机译:通过直接靶向培养的上皮细胞遇到的两个主要衰老屏障来诱导正常上皮细胞非克隆永生化的方法。在人类乳腺上皮细胞(HMEC)中,应力相关的瘀滞屏障被绕开,而端粒严重缩短的结果是复制性衰老屏障,在瘀滞后的HMEC中被绕过。早期传代的永生永生系表现出正常的核型。在没有“乘客”基因组错误的情况下,有效的HMEC永生化方法应有助于检查端粒酶的调控,在人类癌症进展过程中的永生化,以及筛选对进展的毒性和环境影响的方法。

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