Genomic Activation of PPARG Reveals a Candidate Therapeutic Axis in Bladder Cancer.

Genomic Activation of PPARG Reveals a Candidate Therapeutic Axis in Bladder Cancer.
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DOI:
10.1158/0008-5472.can-17-1701
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发表时间:
2017-12-15
期刊:
影响因子:
11.2
通讯作者:
Strathdee CA
Strathdee CA
中科院分区:
医学1区
文献类型:
--
作者:
Goldstein JT;Berger AC;Shih J;Duke FF;Furst L;Kwiatkowski DJ;Cherniack AD;Meyerson M;Strathdee CA

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编码核受体 PPAR-γ 的 PPARG 基因在膀胱癌中被激活,要么直接通过基因扩增或突变,要么间接通过编码 PPAR-γ 异二聚体配偶体的 RXRA 基因突变。在这里,我们证明 PPARG 或 RXRA 的激活改变会导致膀胱癌中出现特定的基因表达特征。降低 PPARG 活性,无论是通过药物抑制还是基因消融,都可以抑制 PPARG 激活的膀胱癌细胞的增殖。我们的结果为 PPARG 作为膀胱癌候选治疗靶点提供了临床前概念证明。
The PPARG gene encoding the nuclear receptor PPAR-gamma is activated in bladder cancer, either directly by gene amplification or mutation, or indirectly by mutation of the RXRA gene which encodes the heterodimeric partner of PPAR-gamma. Here we show that activating alterations of PPARG or RXRA lead to a specific gene expression signature in bladder cancers. Reducing PPARG activity, whether by pharmacologic inhibition or genetic ablation, inhibited proliferation of PPARG-activated bladder cancer cells. Our results offer a preclinical proof of concept for PPARG as a candidate therapeutic target in bladder cancer.