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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

ras and p53 genes in male breast cancer.

We have studied the roles of Ki-ras oncogene and p53 tumor suppressor gene in a series of 20 cases of male breast cancer and one papilloma of the male breast. Ki-ras was detected in 50-microns sections after digestion with proteinase K and SDS. DNA was amplified by polymerase chain reaction, dot blotted, and mutations were screened with labeled ras mutation-specific oligonucleotides. Wild-type and mutant p53 protein were detected with antibodies CM1 and DO7, using the avidin-biotin-peroxidase method. Two of 17 carcinomas showed Ki-ras mutations, both in codon 12 (gly --> lys and gly --> arg). Five of 20 male breast cancers (25%), including one large intraductal carcinoma, expressed mutant p53 protein. Although the incidence of mutant p53 expression in male breast cancer is similar to that in women, Ki-ras mutations are not significantly increased.[1]

References

  1. ras and p53 genes in male breast cancer. Dawson, P.J., Schroer, K.R., Wolman, S.R. Mod. Pathol. (1996) [Pubmed]
 
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