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Hum Pathol. 1995 Apr;26(4):387-92.

p53 gene analysis of ovarian borderline tumors and stage I carcinomas.

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Department of Pathology, Harvard Medical School, Boston, MA, USA.


Mutations of the p53 gene are common in human ovarian carcinomas; however, their role in the early development of ovarian cancer is unclear. Twelve ovarian borderline tumors (BTs; eight of them p53 immunopositive) and 10 stage I carcinomas (four of them p53 immunopositive) were studied for genetic alterations in the p53 gene. The study was based on single-strand conformation polymorphism (SSCP) analysis and DNA sequencing of exons 2 through 11 of the p53 gene using DNA preparations from microdissected tumors. Mutations were found in 40% of the carcinomas (including a borderline component adjacent to carcinoma in one lesion) but in none of the pure BTs. These findings suggest that p53 mutations may not be commonly associated with the borderline phenotype of ovarian epithelial tumors but may occur during malignant transformation.

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