Baudhuin Linnea M, Roberts Lewis R, Enders Felicity T B, Swanson Russell L, Mettler Teresa A, Aderca Ileana, Stadheim Linda M, Highsmith W Edward
Division of Laboratory Genetics, Department of Laboratory Medicine and Pathology, Mayo Clinic and Foundation, 200 First Street SW, 920 Hilton Building, Rochester, MN 55905, USA.
J Cancer Res Clin Oncol. 2006 Mar;132(3):159-62. doi: 10.1007/s00432-005-0056-6. Epub 2005 Nov 15.
Production of reactive oxygen species (ROS) during chronic inflammation has been implicated in the progression of liver diseases and carcinogenesis. Subjects with inflammatory liver disease and one non-functional allele of the base excision repair gene, MYH, may be more susceptible to progression to cancer due to MYH haploinsufficiency in repairing oxidative damage caused by ROS. Here, we investigated the association of two common germline MYH mutations in patients with hepatocellular carcinoma (HCC) and cholangiocarcinoma.
DNA from patients with HCC (n=48) or cholangiocarcinoma (n=84) compared to non-cancerous controls (n=308) were genotyped for the Y165C and G382D mutations in MYH.
There was no significant difference in MYH mutation carrier status between patients with HCC (1/48), cholangiocarcinoma (3/84), and non-cancerous controls (4/308).
Patients with HCC or cholangiocarcinoma do not have an increased incidence of monoallelic MYH mutations pre-disposing them to disease.
慢性炎症期间活性氧(ROS)的产生与肝脏疾病的进展和致癌作用有关。患有炎症性肝病且碱基切除修复基因MYH有一个无功能等位基因的受试者,可能因MYH单倍剂量不足而在修复ROS引起的氧化损伤方面更易发展为癌症。在此,我们研究了肝细胞癌(HCC)和胆管癌患者中两种常见的MYH种系突变的关联性。
对48例HCC患者、84例胆管癌患者以及308例非癌对照者的DNA进行基因分型,以检测MYH中的Y165C和G382D突变。
HCC患者(1/48)、胆管癌患者(3/84)和非癌对照者(4/308)的MYH突变携带者状态无显著差异。
HCC或胆管癌患者单等位基因MYH突变的发生率并未增加,使其易患疾病。