Ha-ras gene codon 12 mutation and DNA ploidy in urinary bladder carcinoma
نویسندگان
چکیده
منابع مشابه
Point mutation at codon 12 of the c-Ha-ras gene in human gastric cancers.
The molecular mechanisms of the carcinogenic process of gastric cancer have not been fully understood yet. In order to know whether c-Ha-ras gene is being involved in the process of gastric carcinogenesis, 8 gastric cancer cell lines, 8 cases of gastric cancer and same number of adjacent dysplasia were analyzed for the presence of mutation at codon 12, 13 and 61 of the c-Ha-ras gene by using po...
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The frequency and clinicopathologic significance of the K-ras gene point mutation in stomach cancer remain to be defined. We investigated the frequency of K-ras codon 12 point mutations in stomach cancer using a polymerase chain reaction (PCR)-based method in 94 samples and 100 age and sex matched controls. The overall frequency of K-ras codon 12 point mutations in stomach cancer was 3.19% (3/9...
متن کاملVariability of Ha-ras (codon 12) proto-oncogene mutations in diverse thyroid cancers.
Structural alterations to proto-oncogene sequences may be involved in the pathogenesis of human thyroid neoplasms. We studied 128 thyroid tumours (35 benign and 93 malignant) for ras gene point mutations in three different codons (12, 13 and 61) using a restriction fragment length polymorphism technique and direct sequencing of double-stranded DNA on polymerase chain-reaction-amplified tumour D...
متن کاملcodon 12 k-ras mutation detection in iranian patients with colorectal cancer using pcr-rflp method
colorectal cancer (crc) is one of the most common cancers worldwide. understanding of the tumor behavior, in a much closer look, at the molecular level, results in a more effective treatment and accurate prognosis of the disease. from among various genes altered in colorectal cancer k-ras is assumed to be of diagnostic and prognostic significance. k-ras mutations are believed to be a critical e...
متن کاملK-ras gene mutation in gall bladder carcinomas and dysplasia.
Epithelial dysplasia of gall bladder is an important precancerous lesion of gall bladder carcinogenesis. To investigate the frequency of K-ras gene mutation in gall bladder carcinoma and dysplasia, K-ras codon 12 mutations were investigated by the polymerase chain reaction/restriction enzyme based method following direct sequencing. Mutation was detected in 59% (30 of 51) of gall bladder carcin...
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ژورنال
عنوان ژورنال: British Journal of Cancer
سال: 1990
ISSN: 0007-0920,1532-1827
DOI: 10.1038/bjc.1990.374