In vivo identification of tumor- suppressive PTEN ceRNAs in an oncogenic BRAF-induced mouse model of melanoma.
In vivo identification of tumor- suppressive PTEN ceRNAs in an oncogenic BRAF-induced mouse model of melanoma.
复制标题
在致癌 BRAF 诱导的黑色素瘤小鼠模型中体内鉴定肿瘤抑制性 PTEN ceRNA。
DOI:
10.1016/j.cell.2011.09.032
复制
发表时间:
2011-10-14
期刊:
影响因子:
64.5
通讯作者:
Pandolfi PP
中科院分区:
文献类型:
--
作者:
Karreth FA;Tay Y;Perna D;Ala U;Tan SM;Rust AG;DeNicola G;Webster KA;Weiss D;Perez-Mancera PA;Krauthammer M;Halaban R;Provero P;Adams DJ;Tuveson DA;Pandolfi PP
We recently proposed that competitive endogenous RNAs (ceRNAs) sequester microRNAs to regulate mRNA transcripts containing common microRNA recognition elements (MREs). However, the functional role of ceRNAs in cancer remains unknown. Loss of PTEN, a tumor suppressor regulated by ceRNA activity, frequently occurs in melanoma. Here, we report the discovery of significant enrichment of putative PTEN ceRNAs among genes whose loss accelerates tumorigenesis following Sleeping Beauty insertional mutagenesis in a mouse model of melanoma. We validated several putative PTEN ceRNAs and further characterized one, the ZEB2 transcript. We show that ZEB2 modulates PTEN protein levels in a microRNA-dependent, protein coding-independent manner. Attenuation of ZEB2 expression activates the PI3K/AKT pathway, enhances cell transformation, and commonly occurs in human melanomas and other cancers expressing low PTEN levels. Our study genetically identifies multiple putative microRNA decoys for PTEN, validates ZEB2 mRNA as a bona fide PTEN ceRNA, and demonstrates that abrogated ZEB2 expression cooperates with BRAFV600E to promote melanomagenesis.
登录
查看更多内容
影响因子:
4.6
作者:
Jenny, Andreas;Hachet, Olivier;Ephrussi, Anne
通讯作者:
Ephrussi, Anne
影响因子:
64.5
作者:
Salmena L;Poliseno L;Tay Y;Kats L;Pandolfi PP
通讯作者:
Pandolfi PP
DOI:
10.1093/bfgp/3.2.157
发表时间:
2004-08-01
期刊:
Briefings in Functional Genomics & Proteomics
影响因子:
--
作者:
D'Errico, Ilenia;Gadaleta, Gemma;Saccone, Cecilia
通讯作者:
Saccone, Cecilia
影响因子:
64.5
作者:
Sumazin P;Yang X;Chiu HS;Chung WJ;Iyer A;Llobet-Navas D;Rajbhandari P;Bansal M;Guarnieri P;Silva J;Califano A
通讯作者:
Califano A
影响因子:
3.7
作者:
Halaban, Ruth;Krauthammer, Michael;Enghild, Jan J.
通讯作者:
Enghild, Jan J.