p53 and PTEN/MMAC1 mutational analysis of the small-intestinal cancer.
2003
Abstract A 66-year-old female, suffering from small-intestinal cancer underwent resection of the small intestine. Genome DNAs were extracted from the patient’s blood and small-intestinal cancer and were subjected to a polymerase chain reaction-single strand conformation polymorphism and nucleotide sequence analysis for exons of the p53 and PTEN/MMAC1 genes to search for any mutations. The sequence analysis revealed a point mutation of the p53 codon193 in the cancer DNA; however, no mutation of the PTEN/MMAC1 gene was observed in either the blood or cancer DNA. The p53 mutation, therefore, seems to be related to tumour progression of small-intestinal cancer; however, no relationship was found between the PTEN/MMAC1 gene and the small-intestinal cancer.
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