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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Menin promotes hepatocellular carcinogenesis and epigenetically up-regulates Yap1 transcription
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Menin promotes hepatocellular carcinogenesis and epigenetically up-regulates Yap1 transcription

机译：Menin promotes hepatocellular carcinogenesis and epigenetically up-regulates Yap1 transcription

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摘要

Menin is a scaffold protein encoded by the multiple endocrine neoplasia type 1 (MEN1) gene in humans, and it interacts with a variety of transcriptional proteins to control active or repressive cellular processes. Here, we show that heterozygous ablation of Men1 in female mice reduces chemical carcinogen-induced liver carcinogenesis and represses the activation of the inflammation pathway. Using ChIP-on-chip screens and ChIP assays, we find that menin occupancy frequently coincides with H3K4me3 at the promoter of many liver cancer-related genes, such as Yes-associated protein (Yap1). Increased menin and Yap1 expression in human hepatocellular carcinoma specimens was associated with poor prognosis. Our findings reveal that menin plays an important epigenetic role in promoting liver tumorigenesis, and support the notion that H3K4me3, which is regulated by the menin-mixedlineage leukemia complex, is a potential therapeutic target in hepatocellular carcinoma.

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