Study the value of screening hereditary nonpolyposis colorectal cancer kindreds by detecting the expression of hMLH1/hMSH2 with tissue microarray.
- Author:
Hei-Ying JIN
1
;
Yi-Jiang DING
;
Jian-Xiang GENG
;
Fei LIU
;
Bo-Lin YANG
;
Shu-Liang HUANG
;
Shu-Qin DING
;
Yong-Sheng GE
Author Information
- Publication Type:Journal Article
- MeSH: Adaptor Proteins, Signal Transducing; metabolism; Adult; Aged; Colorectal Neoplasms, Hereditary Nonpolyposis; diagnosis; genetics; metabolism; DNA Methylation; Female; Gene Frequency; Genetic Testing; Humans; Immunohistochemistry; Male; Middle Aged; MutL Protein Homolog 1; MutS Homolog 2 Protein; metabolism; Nuclear Proteins; metabolism; Pedigree; Protein Array Analysis; methods
- From: Chinese Journal of Gastrointestinal Surgery 2007;10(1):67-69
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the value of screening hereditary nonpolyposis colorectal cancer (HNPCC) kindreds by detecting the expressions of hMLH1/hMSH2 with tissue microarray.
METHODSA tissue microarray with 22 colorectal cancers from HNPCC families and 15 sporadic colorectal cancers was established, and the expressions of hMLH1/hMSH2 were detected by immunohistochemistry (IHC).
RESULTSThe expressions of hMLH1 or hMSH2 were negative in 15 of 22 HNPCC and 1 of 15 sporadic colorectal cancers in routine IHC. The expressions of hMLH1 or hMSH2 were negative in 17 of 22 HNPCC and 2 of 15 sporadic colorectal cancers in tissue microarray. The examination of hMSH2 expression yielded same results between routine IHC and tissue microarray. There were no difference on the hMLH1 expressions between routine IHC and tissue microarray.
CONCLUSIONTissue microarray is a high-throughput way to detect the expressions of hMLH1/hMSH2 and is applicable to screen HNPCC kindreds.
