Estrogen-induced upregulation and 3'-UTR shortening of CDC6.
Estrogen-induced upregulation and 3'-UTR shortening of CDC6.
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雌激素引起的上调和3'-UTR缩短Cdc6。
DOI:
10.1093/nar/gks855
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发表时间:
2012-11
影响因子:
14.9
通讯作者:
Erson-Bensan AE
中科院分区:
文献类型:
--
作者:
Akman BH;Can T;Erson-Bensan AE
3′-Untranslated region (UTR) shortening of mRNAs via alternative polyadenylation (APA) has important ramifications for gene expression. By using proximal APA sites and switching to shorter 3′-UTRs, proliferating cells avoid miRNA-mediated repression. Such APA and 3′-UTR shortening events may explain the basis of some of the proto-oncogene activation cases observed in cancer cells. In this study, we investigated whether 17 β-estradiol (E2), a potent proliferation signal, induces APA and 3′-UTR shortening to activate proto-oncogenes in estrogen receptor positive (ER+) breast cancers. Our initial probe based screen of independent expression arrays suggested upregulation and 3′-UTR shortening of an essential regulator of DNA replication, CDC6 (cell division cycle 6), upon E2 treatment. We further confirmed the E2- and ER-dependent upregulation and 3′UTR shortening of CDC6, which lead to increased CDC6 protein levels and higher BrdU incorporation. Consequently, miRNA binding predictions and dual luciferase assays suggested that 3′-UTR shortening of CDC6 was a mechanism to avoid 3′-UTR-dependent negative regulations. Hence, we demonstrated CDC6 APA induction by the proliferative effect of E2 in ER+ cells and provided new insights into the complex regulation of APA. E2-induced APA is likely to be an important but previously overlooked mechanism of E2-responsive gene expression.
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影响因子:
30.8
作者:
Carroll, Jason S.;Meyer, Clifford A.;Brown, Myles
通讯作者:
Brown, Myles
影响因子:
12.3
作者:
Elkon R;Drost J;van Haaften G;Jenal M;Schrier M;Oude Vrielink JA;Agami R
通讯作者:
Agami R
影响因子:
64.8
作者:
Gonzalez, S;Klatt, P;Serrano, M
通讯作者:
Serrano, M
DOI:
10.1073/pnas.94.11.5611
发表时间:
1997-05-27
影响因子:
11.1
作者:
Donovan, S;Harwood, J;Diffley, JFX
通讯作者:
Diffley, JFX
影响因子:
6.7
作者:
Lee, HO;Sheen, YY
通讯作者:
Sheen, YY