Genomic and molecular characterization of esophageal squamous cell carcinoma.

Genomic and molecular characterization of esophageal squamous cell carcinoma.
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食管鳞状细胞癌的基因组和分子特征。

DOI:
10.1038/ng.2935
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发表时间:
2014-05
期刊:
影响因子:
30.8
通讯作者:
Koeffler HP
Koeffler HP
中科院分区:
生物学1区
文献类型:
--
作者:
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 HP

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食管鳞状细胞癌(ESCC)是一种世界范围内的流行性癌症,在亚洲某些地区尤为常见。在这里,我们报告了139对ESCC病例的全外显子组或靶向深度测序,并分析了超过180例ESCC的体细胞拷贝数变异(SCNV)。我们发现了新的显著突变的基因,如FAT1,FAT2,ZNF 750和KMT 2D,除了以前发现的基因(TP53,PIK3CA和NOTCH 1)。进一步的SCNV评估,免疫组织化学和生物学分析表明,它们在ESCC中的功能相关性。值得注意的是,RTK-MAPK-PI3K通路,细胞周期和表观遗传调控经常在这种癌症中受到多种分子机制的失调。此外,我们的方法发现了许多新的药物候选物,XPO 1由于其突变和蛋白质过表达而被进一步探索为治疗靶点。总之,我们的综合研究揭示了ESCC中许多新的遗传病变,并为了解食管肿瘤和开发治疗靶点提供了重要的分子基础。
Esophageal squamous cell carcinoma (ESCC) is a world-wide prevalent cancer, which is 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 novel significantly mutated genes such as FAT1, FAT2, ZNF750 and KMT2D, in addition to previously discovered ones (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. Moreover, our approaches uncovered many novel druggable candidates, and XPO1 was further explored as a therapeutic target because of its mutation and protein overexpression. Together, 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.
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