Keeping an eye on retinoblastoma control of human embryonic stem cells.

Keeping an eye on retinoblastoma control of human embryonic stem cells.
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DOI:
10.1002/jcb.22342
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发表时间:
2009-12-01
影响因子:
4
通讯作者:
Sage, Julien
Sage, Julien
中科院分区:
生物学2区
文献类型:
--
作者:
Conklin, Jamie F.;Sage, Julien

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人类胚胎干细胞(hESCs)在再生医学中具有巨大的应用前景。然而,在充分发挥这些细胞的潜力之前,需要解决一些主要的基础生物学问题。特别是,我们对于从囊胚中获取hESCs的分子机制、未分化的多能状态的调控以及向特定谱系分化的控制等方面的知识仍然存在空白。此外,我们还没有完全理解hESCs的致瘤潜能,这限制了它们在再生医学中的应用。RB通路是一个关键的信号模块,它控制着哺乳动物细胞的细胞增殖、细胞存活、染色质结构和细胞分化。RB通路的成员是hESC生物学的重要调节因子,对该通路活性的调控可能为控制hESCs的命运提供新的方法。在此,我们综述了关于RB通路成员在hESCs中的表达和功能的已知情况,并讨论了该领域中令人关注的方面。
Human embryonic stem cells (hESCs) hold great promise in regenerative medicine. However, before the full potential of these cells is achieved, major basic biological questions need to be addressed. In particular, there are still gaps in our knowledge of the molecular mechanisms underlying the derivation of hESCs from blastocysts, the regulation of the undifferentiated, pluripotent state, and the control of differentiation into specific lineages. Furthermore, we still do not fully understand the tumorigenic potential of hESCs, limiting their use in regenerative medicine. The RB pathway is a key signaling module that controls cellular proliferation, cell survival, chromatin structure, and cellular differentiation in mammalian cells. Members of the RB pathway are important regulators of hESC biology and manipulation of the activity of this pathway may provide novel means to control the fate of hESCs. Here we review what is known about the expression and function of members of the RB pathway in hESCs and discuss areas of interest in this field.
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