- Epigenomic Promoter Alterations Amplify Gene Isoform and Immunogenic Diversity in Gastric Adenocarcinoma.
Epigenomic Promoter Alterations Amplify Gene Isoform and Immunogenic Diversity in Gastric Adenocarcinoma.
Cancer discovery (2017-03-23)
Aditi Qamra, Manjie Xing, Nisha Padmanabhan, Jeffrey Jun Ting Kwok, Shenli Zhang, Chang Xu, Yan Shan Leong, Ai Ping Lee Lim, Qianqao Tang, Wen Fong Ooi, Joyce Suling Lin, Tannistha Nandi, Xiaosai Yao, Xuewen Ong, Minghui Lee, Su Ting Tay, Angie Tan Lay Keng, Erna Gondo Santoso, Cedric Chuan Young Ng, Alvin Ng, Apinya Jusakul, Duane Smoot, Hassan Ashktorab, Sun Young Rha, Khay Guan Yeoh, Wei Peng Yong, Pierce K H Chow, Weng Hoong Chan, Hock Soo Ong, Khee Chee Soo, Kyoung-Mee Kim, Wai Keong Wong, Steven G Rozen, Bin Tean Teh, Dennis Kappei, Jeeyun Lee, John Connolly, Patrick Tan
PMID28320776
RÉSUMÉ
Promoter elements play important roles in isoform and cell type-specific expression. We surveyed the epigenomic promoter landscape of gastric adenocarcinoma, analyzing 110 chromatin profiles (H3K4me3, H3K4me1, H3K27ac) of primary gastric cancers, gastric cancer lines, and nonmalignant gastric tissues. We identified nearly 2,000 promoter alterations (somatic promoters), many deregulated in various epithelial malignancies and mapping frequently to alternative promoters within the same gene, generating potential pro-oncogenic isoforms (
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