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Ai, Lingbao; Kim, Wan-Ju; Alpay, Merve; Tang, Ming; Pardo, Carolina E.; Hatakeyama, Shigetsugu; May, W. Stratford; Kladde, Michael P.; Heldermon, Coy D.; Siegel, Erin M.; Brown, Kevin D.
{ "@context": "https://schema.org/", "@id": 63399, "@type": "ScholarlyArticle", "creator": [ { "@type": "Person", "name": "Ai, Lingbao" }, { "@type": "Person", "name": "Kim, Wan-Ju" }, { "@type": "Person", "name": "Alpay, Merve" }, { "@type": "Person", "name": "Tang, Ming" }, { "@type": "Person", "name": "Pardo, Carolina E." }, { "@type": "Person", "affiliation": "Hokkaido Univ, Grad Sch Med, Dept Biochem, Sapporo, Hokkaido, Japan", "name": "Hatakeyama, Shigetsugu" }, { "@type": "Person", "name": "May, W. Stratford" }, { "@type": "Person", "name": "Kladde, Michael P." }, { "@type": "Person", "name": "Heldermon, Coy D." }, { "@type": "Person", "name": "Siegel, Erin M." }, { "@type": "Person", "name": "Brown, Kevin D." } ], "datePublished": "2014-01-01", "description": "TRIM29 (ATDC) exhibits a contextual function in cancer, but seems to exert a tumor-suppressor role in breast cancer. Here, we show that TRIM29 is often silenced in primary breast tumors and cultured tumor cells as a result of aberrant gene hypermethylation. RNAi-mediated silencing of TRIM29 in breast tumor cells increased their motility, invasiveness, and proliferation in a manner associated with increased expression of mesenchymal markers (N-cadherin and vimentin), decreased expression of epithelial markers (E-cadherin and EpCAM), and increased expression and activity of the oncogenic transcription factor TWIST1, an important driver of the epithelial-mesenchymal transition (EMT). Functional investigations revealed an inverse relationship in the expression of TRIM29 and TWIST1, suggesting the existence of a negative regulatory feedback loop. In support of this relationship, we found that TWIST1 inhibited TRIM29 promoter activity through direct binding to a region containing a cluster of consensus E-box elements, arguing that TWIST1 transcriptionally represses TRIM29 expression. Analysis of a public breast cancer gene-expression database indicated that reduced TRIM29 expression was associated with reduced relapse-free survival, increased tumor size, grade, and metastatic characteristics. Taken together, our results suggest that TRIM29 acts as a tumor suppressor in breast cancer through its ability to inhibit TWIST1 and suppress EMT. (C) 2014 AACR.", "headline": "TRIM29 Suppresses TWIST1 and Invasive Breast Cancer Behavior", "identifier": 63399, "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", "license": "http://www.opendefinition.org/licenses/cc-by", "name": "TRIM29 Suppresses TWIST1 and Invasive Breast Cancer Behavior", "url": "https://aperta.ulakbim.gov.tr/record/63399" }
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