Poly(ADP-ribose) controls DE-cadherin-dependent stem cell maintenance and oocyte localization.

Poly(ADP-ribose) controls DE-cadherin-dependent stem cell maintenance and oocyte localization.
复制标题

聚(ADP-核糖)控制依赖于钙粘蛋白的干细胞维持和卵母细胞定位。

DOI:
10.1038/ncomms1759
复制
发表时间:
2012-03-27
影响因子:
16.6
通讯作者:
--
中科院分区:
综合性期刊1区
文献类型:
--
作者:

文献摘要

参考文献

被引文献

相似文献

在较短的细胞周期内,聚(adp -核糖)(pADPr)可被聚(adp -核糖)聚合酶(PARPs)快速生成,并被聚(adp -核糖)糖水解酶(PARGs)降解。本研究表明,pADPr和异质核核糖核蛋白(hnRNPs)之间的关联变化调节了果蝇卵发生过程中种系干细胞的维持和卵室极性。pADPr和Hrp38(人类hnRNPA1的同源物)的结合破坏了Hrp38与DE-cadherin mRNA 5'UTR的相互作用,从而减少了DE-cadherin在祖细胞中的翻译。随着DE-cadherin水平的降低,种系干细胞离开干细胞生态位并分化。pADPr分解代谢或Hrp38功能的缺陷都会导致de -钙粘蛋白翻译的减少,从而导致种系干细胞的丢失和卵巢中卵母细胞的错误定位。综上所述,我们的研究结果表明,Hrp38及其与pADPr的关联通过调节DE-cadherin的翻译来控制种系干细胞的自我更新和卵母细胞的定位。
Within the short span of the cell cycle, Poly(ADP-ribose) (pADPr) can be rapidly produced by Poly(ADP-ribose) Polymerases (PARPs) and degraded by Poly(ADP-ribose) Glycohydrolases (PARGs). Here we show that changes in association between pADPr and heterogeneous nuclear ribonucleoproteins (hnRNPs) regulate germline stem cell maintenance and egg chamber polarity during oogenesis in Drosophila. The association of pADPr and Hrp38, an ortholog of human hnRNPA1, disrupts the interaction of Hrp38 with the 5′UTR of DE-cadherin mRNA, thereby diminishing DE-cadherin translation in progenitor cells. Following the reduction of DE-cadherin level, germline stem cells leave the stem cell niche and differentiate. Defects in either pADPr catabolism or Hrp38 function cause a decreased translation of DE-cadherin, leading to a loss of germline stem cells and mislocalization of oocytes in the ovary. Taken together, our findings suggest that Hrp38 and its association with pADPr control germline stem cell self-renewal and oocyte localization by regulating DE-cadherin translation.
DOI: 10.1177/002215540205000110
发表时间: 2002-01-01
影响因子: 3.2
作者:
Bakondi, E;Bai, P;Virág, L
通讯作者: Virág, L
DOI: 10.1073/pnas.2237114100
发表时间: 2004-01-06
影响因子: 11.1
作者:
Hanai, S;Kanai, M;Miwa, M
通讯作者: Miwa, M
DOI: 10.1073/pnas.1015874108
发表时间: 2011-04-26
影响因子: 11.1
作者:
Eliazer, Susan;Shalaby, Nevine A.;Buszczak, Michael
通讯作者: Buszczak, Michael
DOI: 10.1073/pnas.0901452106
发表时间: 2009-06-09
影响因子: 11.1
作者:
Li, Yun;Minor, Nicole T.;Maines, Jean Z.
通讯作者: Maines, Jean Z.
DOI: 10.1073/pnas.0812826106
发表时间: 2009-02-24
影响因子: 11.1
作者:
Borah, Sumit;Wong, Anthony C.;Steitz, Joan A.
通讯作者: Steitz, Joan A.