Frequent mutation of BAP1 in metastasizing uveal melanomas.

Frequent mutation of BAP1 in metastasizing uveal melanomas.
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DOI:
10.1126/science.1194472
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发表时间:
2010-12-03
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Bowcock AM
Bowcock AM
中科院分区:
其他
文献类型:
--
作者:
Harbour JW;Onken MD;Roberson ED;Duan S;Cao L;Worley LA;Council ML;Matatall KA;Helms C;Bowcock AM

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转移是恶性肿瘤的一个重要特征,也是癌症相关死亡的最常见原因,然而转移的遗传学却知之甚少。我们使用大规模平行外显子组测序和Sanger重测序相结合的方法在高度转移性葡萄膜黑色素瘤中寻找与转移相关的突变。在31例转移性肿瘤中,26例(84%)发现染色体3p21.1上编码BRCA1相关蛋白1(BAP1)的基因存在体细胞失活突变,其中15例突变导致蛋白提前终止,6例影响其泛素羧基末端水解酶(UCH)结构域。其中一个肿瘤含有一个移码突变,该突变起源于生殖系,因此代表了一个易感等位基因。这些发现表明BAP1在葡萄膜黑色素瘤转移中的缺失,并提示BAP1通路是一个治疗靶点。
Metastasis is a defining feature of malignant tumors and is the most common cause of cancer-related death, yet the genetics of metastasis are poorly understood. We used massively parallel exome sequencing coupled with Sanger re-sequencing to search for metastasis-related mutations in highly metastatic uveal melanomas of the eye. Inactivating somatic mutations were identified in the gene encoding BRCA1-associated protein 1 (BAP1) on chromosome 3p21.1 in 26 of 31 (84%) metastasizing tumors, including 15 mutations causing premature protein termination, and six affecting its ubiquitin carboxy-terminal hydrolase (UCH) domains. One tumor harbored a frameshift mutation that was germline in origin, thus representing a susceptibility allele. These findings implicate loss of BAP1 in uveal melanoma metastasis and suggest the BAP1 pathway as a therapeutic target.
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