RhoA activation participates in rearrangement of processing bodies and release of nucleated AU-rich mRNAs.
RhoA activation participates in rearrangement of processing bodies and release of nucleated AU-rich mRNAs.
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DOI:
10.1093/nar/gkq1302
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发表时间:
2011-04
影响因子:
14.9
通讯作者:
Katada T
中科院分区:
文献类型:
--
作者:
Takahashi S;Sakurai K;Ebihara A;Kajiho H;Saito K;Kontani K;Nishina H;Katada T
Cytoplasmic ribonucleoprotein granules, known as processing bodies (P-bodies), contain a common set of conserved RNA-processing enzymes, and mRNAs with AU-rich elements (AREs) are delivered to P-bodies for translational silencing. Although the dynamics of P-bodies is physically linked to cytoskeletal network, it is unclear how small GTPases are involved in the P-body regulation and the ARE-mRNA metabolism. We found here that glucose depletion activates RhoA GTPase and alters the P-body dynamics in HeLa cells. These glucose-depleted effects are reproduced by the overexpression of the RhoA-subfamily GTPases and conversely abolished by the inhibition of RhoA activation. Interestingly, both RhoA activation and glucose depletion inhibit the mRNA accumulation and degradation. These findings indicate that RhoA participates in the stress-induced rearrangement of P-bodies and the release of nucleated ARE-mRNAs for their stabilization.
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影响因子:
32.4
作者:
Kontoyiannis, D;Pasparakis, M;Kollias, G
通讯作者:
Kollias, G
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
3.3
作者:
Kshirsagar, M;Parker, R
通讯作者:
Parker, R
影响因子:
21.3
作者:
Krendel, M;Zenke, FT;Bokoch, GM
通讯作者:
Bokoch, GM
DOI:
10.1083/jcb.200504039
发表时间:
2005-09-12
期刊:
The Journal of cell biology
影响因子:
--
作者:
Ferraiuolo MA;Basak S;Dostie J;Murray EL;Schoenberg DR;Sonenberg N
通讯作者:
Sonenberg N