Germ-line mutation of the hMSH6/GTBP gene in an atypical hereditary nonpolyposis colorectal cancer kindred.

نویسندگان

  • Y Akiyama
  • H Sato
  • T Yamada
  • H Nagasaki
  • A Tsuchiya
  • R Abe
  • Y Yuasa
چکیده

A germ-line mutation of hMSH6 (also called GTBP) was found in a hereditary nonpolyposis colorectal cancer (HNPCC)-like patient in whom germ-line mutations of hMSH2, hMSH3, or hMLH1 had not been detected. The patient had rectal cancer and two colon adenomas at 62 years of age and a weak family history of gastrointestinal tumors, indicating atypical HNPCC. Somatic mutations of hMSH6 were observed in three colorectal tumors from the patient, indicating two-hit inactivation. Microsatellite instabilities at mononucleotide repeats were detected in all three tumors. These data suggest that hMSH6 is responsible for tumorigenesis in atypical HNPCC.

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عنوان ژورنال:
  • Cancer research

دوره 57 18  شماره 

صفحات  -

تاریخ انتشار 1997