Phosphorylation of Yun is required for stem cell proliferation and tumorigenesis.

Phosphorylation of Yun is required for stem cell proliferation and tumorigenesis.
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DOI:
10.1111/cpr.13230
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发表时间:
2022-05
期刊:
影响因子:
8.5
通讯作者:
--
中科院分区:
生物学1区
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--
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干细胞在生理条件下维持成体组织的稳态。不受控制的干细胞增殖将导致肿瘤发生。干细胞增殖是如何被精确控制的仍然没有完全了解。Yun的磷酸化对于ISC增殖是必需的。Yun对正常和转化的肠道干细胞的增殖至关重要。我们的质谱和生化数据表明,Yun可以在体内多个残基磷酸化。有趣的是,我们发现这些残基之间的磷酸化可能是相互依赖的。此外,Yun中每个残基的磷酸化对于其在ISC增殖调节中的功能是重要的。因此,我们的研究揭示了Yun翻译后修饰在干细胞增殖中的重要作用。运(Luck)是肠干细胞(ISC)增殖调控的内在因子。Yun在体内通过其C末端的五个丝氨酸残基的磷酸化进行翻译后修饰。这五个残基之间的磷酸化可能是相互依赖的。重要的是,Yun中每个残基的磷酸化对于Yun在ISC增殖调节中的功能是重要的。
Stem cells maintain adult tissue homeostasis under physiological conditions. Uncontrolled stem cell proliferation will lead to tumorigenesis. How stem cell proliferation is precisely controlled is still not fully understood. Phosphorylation of Yun is essential for ISC proliferation. Yun is essential for the proliferation of normal and transformed intestinal stem cells. Our mass spectrometry and biochemical data suggest that Yun can be phosphorylated at multiple residues in vivo. Interestingly, we show that the phosphorylation among these residues is likely interdependent. Furthermore, phosphorylation of each residue in Yun is important for its function in ISC proliferation regulation. Thus, our study unveils the important role of post‐translational modification of Yun in stem cell proliferation. Yun (Luck in Chinese) is an intrinsic factor identified for intestinal stem cell (ISC) proliferation control. Yun is post‐translational modified by phosphorylation at five serine residues at its C‐terminus in vivo. Phosphorylation among these five residues is likely interdependent. Importantly, phosphorylation of each residue in Yun is important for Yun's function in ISC proliferation regulation.
CK1α和GRK2的声音刺猬依赖性磷酸化是纤毛积累和平滑激活所必需的。
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