LOSS　　OF　HETEROZYGOSITY　INVOLVING　THE　APC　TUMOR　SUPPRESSOR　GENE　IN　HUMAN　COLORECTAL　CARCINOMA  

作　　者：徐文怀 杨定成 

出　　处：《Chinese Journal of Cancer Research》1995年第1期51-54,共4页中国癌症研究（英文版）

摘　　要：To investigate whether aberration of the APC gene play any role in the development of Chinese sporadic colorectal carcinomas,we used a polymorphic site located in exon 11 which creted a new restriction site for RsaI to analyze LOH for the APC gene.We found that 20/29(68.9%) patients with colorectal cancer were informative for the APC exon 11 site and loss of one allele was detected in 40% of 20 informativc cascs.These data suggested that loss of heterozygosity of APC gene(APC-LOH) play a role in the pathogenesis of Chinese colorectal cancer.APC-LOH is a earlier event of colorectal tumorigenesis and may be of diagnostic value in Patient suffering colorectal cancer.To investigate whether aberration of the APC gene play any role in the development of Chinese sporadic colorectal carcinomas,we used a polymorphic site located in exon 11 which creted a new restriction site for RsaI to analyze LOH for the APC gene.We found that 20/29(68.9%) patients with colorectal cancer were informative for the APC exon 11 site and loss of one allele was detected in 40% of 20 informativc cascs.These data suggested that loss of heterozygosity of APC gene(APC-LOH) play a role in the pathogenesis of Chinese colorectal cancer.APC-LOH is a earlier event of colorectal tumorigenesis and may be of diagnostic value in Patient suffering colorectal cancer.

关 键 词：HETEROZYGOSITY APC gene Human colorectal carcinoma. 

分 类 号：R73-3[医药卫生—肿瘤]