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Nat Cell Biol ; 18(6): 645-656, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-27214280

RESUMO

Cellular transformation and cancer progression is accompanied by changes in the metabolic landscape. Master co-regulators of metabolism orchestrate the modulation of multiple metabolic pathways through transcriptional programs, and hence constitute a probabilistically parsimonious mechanism for general metabolic rewiring. Here we show that the transcriptional co-activator peroxisome proliferator-activated receptor gamma co-activator 1α (PGC1α) suppresses prostate cancer progression and metastasis. A metabolic co-regulator data mining analysis unveiled that PGC1α is downregulated in prostate cancer and associated with disease progression. Using genetically engineered mouse models and xenografts, we demonstrated that PGC1α opposes prostate cancer progression and metastasis. Mechanistically, the use of integrative metabolomics and transcriptomics revealed that PGC1α activates an oestrogen-related receptor alpha (ERRα)-dependent transcriptional program to elicit a catabolic state and metastasis suppression. Importantly, a signature based on the PGC1α-ERRα pathway exhibited prognostic potential in prostate cancer, thus uncovering the relevance of monitoring and manipulating this pathway for prostate cancer stratification and treatment.


Assuntos
Mitocôndrias/metabolismo , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo/metabolismo , Neoplasias da Próstata/metabolismo , Animais , Modelos Animais de Doenças , Metabolismo Energético/fisiologia , Proteínas de Choque Térmico/metabolismo , Humanos , Masculino , Camundongos , Metástase Neoplásica/patologia , Neoplasias da Próstata/patologia , Receptores de Estrogênio/metabolismo , Receptor ERRalfa Relacionado ao Estrogênio
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