• Department of General Surgery, Beijing Army General Hospital, Beijing 100700;
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The loss of heterozygosity and mutation for nm23-H1 gene in colorectal carcinomas were studied by Southern blot and RT-PCR-SSCP/silver staining sequencing. The rate of loss of heterozygosity for nm23-H1 was 29.63%. The cases of Duke’s stage D and distant metastatsis had higher frequency of the loss of heterozygosity. No mutation for nm23-H1 was found in colorectal carcinomas. These reaults indicate that the loss of heterozygosity for nm23-H1 may play a significant role in the malignant progression and distant metastasis in colorectal carcinomas.

Citation: Luo Chengyu,Zhu Xueguang,Li Shiyong,et al.. THE RELATION OF THE LOSS OF HETEROZYGOSITY AND MUTATION FOR nm23-H1 WITH THE INHIBITION OF METASTASIS IN COLORECTAL CARCINOMA. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 1999, 6(3): 143-145. doi: Copy