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Tips for priming potency

机译:引发效力的技巧

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Introducing just four specific genes into adult cells causes them to regress to an embryonic stem-cell-like state. At 1%, the efficiency of this process is low, but two tips are at hand on how to make improvements. The American poet E. E, Cummings lionized the singular 'i', creating a persona standing apart from the crowd and, without power, scoffing at pretentious authority. Capitalist marketeers and scientists alike have repopular-ized the poetic 'i', perhaps innocently, in iMac and iPhone, Wii and RNAi. Biology's latest 'i' acronym is iPS cells, for induced pluripotent stem cells - antithetically one of the most potent of all cell types'. To produce iPS cells, drab adult cells are induced into a rejuvenated, embryonic stem (ES)-cell-like state by a puissant cocktail of just four genes - a process known as direct reprogramming. But exactly how this remarkable process works, and why it is so inefficient, has been a mystery. On page 49 of this issue, Mikkelsen et al. explain why many of the cells get stuck in a woolly intermediate state during reprogramming, and show how to put them back on the path to pluripo-tency (the ability of a cell to differentiate into all adult cell types).
机译:在成年细胞中仅导入四个特定基因会使它们退回到胚胎干细胞样状态。达到1%时,此过程的效率很低,但是关于如何进行改进有两个技巧。美国诗人E·E·康明斯(E. E. Cummings)将单数的'i'命名为狮子,创造了一个与众不同的角色,没有权力,嘲笑自命不凡的权威。资本主义商人和科学家们都在iMac和iPhone,Wii和RNAi中重新流行了诗意的“ i”。生物学最新的“ i”首字母缩写是iPS细胞,是诱导型多能干细胞-据说是所有细胞类型中最有力的干细胞之一。为了产生iPS细胞,单调的成年细胞通过仅含四个基因的puissant混合物被诱导为再生的胚胎干(ES)细胞状状态-这一过程称为直接重编程。但是,这个非凡的过程究竟是如何工作的以及它为何如此低效,这一直是个谜。在此问题的第49页上,Mikkelsen等人。解释了为什么许多细胞在重编程过程中会停留在羊毛状的中间状态,并说明如何使它们重返多能性(细胞分化为所有成年细胞类型的能力)。

著录项

  • 来源
    《Nature》 |2008年第7200期|p.45-46|共2页
  • 作者

    Joseph F. Costello;

  • 作者单位

    The Physical and Theoretical Chemistry Laboratory, Department of Chemistry, South Parks Road, University of Oxford, Oxford 0X1 3QZ, UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
  • 关键词

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