A study on the amplification, rearrangement and deletion of ras-oncogenes in gastric cancerous and juxtacancerous tissues / 第三军医大学学报

ABSTRACT

The amplification,rearrangement and deletion of c-Ha-ras,K-ras and N-ras were studied in 33 cases of gastric cancerous and juxtacancerous tissues.It was found that the amplification rearangement,and deletion of c-Ha-ras were shown in 25.8% (8/33) of cases and the ampli-cation of K-ras in 3.8% (1/26).No such changes was found for N-ras.