Abstract:
:Esophageal squamous cell carcinoma (ESCC) is prevalent worldwide and particularly common in certain regions of Asia. Here we report the whole-exome or targeted deep sequencing of 139 paired ESCC cases, and analysis of somatic copy number variations (SCNV) of over 180 ESCCs. We identified previously uncharacterized mutated genes such as FAT1, FAT2, ZNF750 and KMT2D, in addition to those already known (TP53, PIK3CA and NOTCH1). Further SCNV evaluation, immunohistochemistry and biological analysis suggested their functional relevance in ESCC. Notably, RTK-MAPK-PI3K pathways, cell cycle and epigenetic regulation are frequently dysregulated by multiple molecular mechanisms in this cancer. Our approaches also uncovered many druggable candidates, and XPO1 was further explored as a therapeutic target because it showed both gene mutation and protein overexpression. Our integrated study unmasks a number of novel genetic lesions in ESCC and provides an important molecular foundation for understanding esophageal tumors and developing therapeutic targets.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Lin DC,Hao JJ,Nagata Y,Xu L,Shang L,Meng X,Sato Y,Okuno Y,Varela AM,Ding LW,Garg M,Liu LZ,Yang H,Yin D,Shi ZZ,Jiang YY,Gu WY,Gong T,Zhang Y,Xu X,Kalid O,Shacham S,Ogawa S,Wang MR,Koeffler HPdoi
10.1038/ng.2935subject
Has Abstractpub_date
2014-05-01 00:00:00pages
467-73issue
5eissn
1061-4036issn
1546-1718pii
ng.2935journal_volume
46pub_type
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