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Smad2 and Smad4 gene mutations in hepatocellular carcinoma
被引:0
|作者:
M C Yakicier
M B Irmak
A Romano
M Kew
M Ozturk
机构:
[1] Bilkent University,Department of Molecular Biology and Genetics
[2] University of The Witwatersrand,undefined
[3] Institute of Molecular Pathology,undefined
来源:
关键词:
hepatocellular carcinoma;
Smad2;
Smad4;
TGFβ;
tumor suppressor genes;
somatic mutation;
D O I:
暂无
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摘要:
TGF-β is a negative regulator of liver growth. Smad family of genes, as mediators of TGF-β pathway, are candidate tumor suppressor genes in hepatocellular carcinoma (HCC). We studied 35 HCC and non-tumour liver tissues for possible mutations in Smad2 and Smad4 genes. Three tumours displayed somatic mutations; two in Smad4 (Asp332Gly and Cys401Arg) and one in Smad2 (Gln407Arg) genes. All three mutations were A:T → G:C transitions suspected to result from oxidative stress as observed in mitochondrial DNA. These observation demonstrate that TGF-β pathway is altered in hepatocellular carcinoma.
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页码:4879 / 4883
页数:4
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