MicroRNA-320a sensitizes tamoxifen-resistant breast cancer cells to tamoxifen by targeting ARPP-19 and ERRγ.
MicroRNA-320a sensitizes tamoxifen-resistant breast cancer cells to tamoxifen by targeting ARPP-19 and ERRγ.
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MicroRNA-320a 通过靶向 ARPP-19 和 ERRgamma 使对他莫昔芬耐药的乳腺癌细胞对他莫昔芬敏感。
DOI:
10.1038/srep08735
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发表时间:
2015-03-04
影响因子:
4.6
通讯作者:
Sun F
中科院分区:
文献类型:
--
作者:
Lü M;Ding K;Zhang G;Yin M;Yao G;Tian H;Lian J;Liu L;Liang M;Zhu T;Sun F
Tamoxifen represents a major adjuvant therapy to those patients with estrogen receptor-alpha positive breast cancer. However, tamoxifen resistance occurs quite often, either de novo or acquired during treatment. To investigate the role of miR-320a in the development of resistance to tamoxifen, we established tamoxifen-resistant (TamR) models by continually exposing MCF-7 or T47D breast cancer cells to tamoxifen, and identified microRNA(miRNA)-320a as a down-regulated miRNA in tamoxifen resistant cells. Re-expression of miR-320a was sufficient to sensitize TamR cells to tamoxifen by targeting cAMP-regulated phosphoprotein (ARPP-19) and estrogen-related receptor gamma (ERRγ) as well as their downstream effectors, c-Myc and Cyclin D1. Furthermore, progesterone (P4) promoted the expression of miR-320a by repressing c-Myc expression, while estrogen (E2) exerted the opposite effect. These results suggest the potential therapeutic approach for tamoxifen-resistant breast cancer by restorating miR-320a expression or depleting ARPP-19/ERRγ expression.
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影响因子:
21.3
作者:
通讯作者:
--
影响因子:
4.8
作者:
Miller, Tyler E.;Ghoshal, Kalpana;Majumder, Sarmila
通讯作者:
Majumder, Sarmila
影响因子:
8
作者:
Ward, A.;Balwierz, A.;Sahin, Oe
通讯作者:
Sahin, Oe
影响因子:
3.8
作者:
Ahnström, M;Nordenskjöld, B;Stål, O
通讯作者:
Stål, O
DOI:
10.1158/1078-0432.ccr-10-2567
发表时间:
2011-04-01
期刊:
Clinical cancer research : an official journal of the American Association for Cancer Research
影响因子:
--
作者:
Miller TW;Balko JM;Ghazoui Z;Dunbier A;Anderson H;Dowsett M;González-Angulo AM;Mills GB;Miller WR;Wu H;Shyr Y;Arteaga CL
通讯作者:
Arteaga CL