The La protein counteracts cisplatin-induced cell death by stimulating protein synthesis of anti-apoptotic factor Bcl2.
The La protein counteracts cisplatin-induced cell death by stimulating protein synthesis of anti-apoptotic factor Bcl2.
复制标题
DOI:
10.18632/oncotarget.8819
复制
发表时间:
2016-05-17
期刊:
影响因子:
--
通讯作者:
Sommer G
中科院分区:
文献类型:
--
作者:
Heise T;Kota V;Brock A;Morris AB;Rodriguez RM;Zierk AW;Howe PH;Sommer G
Up-regulation of anti-apoptotic factors is a critical mechanism of cancer cell resistance and often counteracts the success of chemotherapeutic treatment. Herein, we identified the cancer-associated RNA-binding protein La as novel factor contributing to cisplatin resistance. Our data demonstrate that depletion of the RNA-binding protein La in head and neck squamous cell carcinoma cells (HNSCC) increases the sensitivity toward cisplatin-induced cell death paralleled by reduced expression of the anti-apoptotic factor Bcl2. Furthermore, it is shown that transient expression of Bcl2 in La-depleted cells protects against cisplatin-induced cell death. By dissecting the underlying mechanism we report herein, that the La protein is required for Bcl2 protein synthesis in cisplatin-treated cells. The RNA chaperone La binds in close proximity to the authentic translation start site and unwinds a secondary structure embedding the authentic AUG. Altogether, our data support a novel model, whereby cancer-associated La protein contributes to cisplatin resistance by stimulating the translation of anti-apoptotic factor Bcl2 in HNSCC cells.
登录
查看更多内容
影响因子:
28.2
作者:
Pan R;Hogdal LJ;Benito JM;Bucci D;Han L;Borthakur G;Cortes J;DeAngelo DJ;Debose L;Mu H;Döhner H;Gaidzik VI;Galinsky I;Golfman LS;Haferlach T;Harutyunyan KG;Hu J;Leverson JD;Marcucci G;Müschen M;Newman R;Park E;Ruvolo PP;Ruvolo V;Ryan J;Schindela S;Zweidler-McKay P;Stone RM;Kantarjian H;Andreeff M;Konopleva M;Letai AG
通讯作者:
Letai AG
影响因子:
5.4
作者:
MEEROVITCH, K;SVITKIN, YV;SONENBERG, N
通讯作者:
SONENBERG, N
DOI:
10.1016/j.bbagrm.2010.01.011
发表时间:
2010-05
影响因子:
4.7
作者:
Bayfield, Mark A.;Yang, Ruiqing;Maraia, Richard J.
通讯作者:
Maraia, Richard J.
影响因子:
5.3
作者:
Bayfield, Mark A.;Kaiser, Trish E.;Maraia, Richard J.
通讯作者:
Maraia, Richard J.
影响因子:
14.9
作者:
Hopkins TG;Mura M;Al-Ashtal HA;Lahr RM;Abd-Latip N;Sweeney K;Lu H;Weir J;El-Bahrawy M;Steel JH;Ghaem-Maghami S;Aboagye EO;Berman AJ;Blagden SP
通讯作者:
Blagden SP