SUMO-specific protease 1 is critical for early lymphoid development through regulation of STAT5 activation.

SUMO-specific protease 1 is critical for early lymphoid development through regulation of STAT5 activation.
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Sumo特异性蛋白酶1通过调节STAT5激活而对早期淋巴发育至关重要。

DOI:
10.1016/j.molcel.2011.12.026
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发表时间:
2012-01-27
期刊:
影响因子:
16
通讯作者:
Yeh, Edward T. H.
Yeh, Edward T. H.
中科院分区:
生物学1区
文献类型:
--
作者:
Thang Van Nguyen;Angkasekwinai, Pornpimon;Dou, Hong;Lin, Feng-Ming;Lu, Long-Sheng;Cheng, Jinke;Chin, Y. Eugene;Dong, Chen;Yeh, Edward T. H.

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小泛素样修饰物(SUMO)修饰已成为胚胎发育过程中重要的调控机制。然而,尚不清楚SUMO化是否在免疫系统的发育中起作用。在这里,我们表明,SUMO特异性蛋白酶1(SENP 1)是必不可少的早期T和B细胞的发展。STAT5是淋巴发育的关键调节因子,由SUMO-2修饰,并由SENP 1特异性调节。在缺乏SENP1的情况下,SUMO-2修饰的STAT5在早期淋巴前体中积累,导致其乙酰化和随后的信号传导的阻断。这些结果表明,在早期淋巴发育过程中,SENP 1在调节STAT5激活中起着至关重要的作用。
Small ubiquitin-like modifier (SUMO) modification has emerged as an important regulatory mechanism during embryonic development. However, it is not known whether SUMOylation plays a role in the development of the immune system. Here, we show that SUMO-specific protease 1 (SENP1) is essential for the development of early T and B cells. STAT5, a key regulator of lymphoid development, is modified by SUMO-2 and is specifically regulated by SENP1. In the absence of SENP1, SUMO-2 modified STAT5 accumulates in early lymphoid precursors, resulting in a block in its acetylation and subsequent signaling. These results demonstrate a crucial role of SENP1 in the regulation of STAT5 activation during early lymphoid development.
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