Open AccessDetection of p53 Gene Mutations in Aspiration Biopsy Specimens from Suspected Breast Cancers by Polymerase Chain Reaction‐Single Strand Conformation Polymorphism Analysis
Author(s) -
Sato Takashi,
Okazaki Akira,
Okazaki Minoru,
Takahashi Shuji,
Hirata Koichi
Publication year - 1995
Publication title -
japanese journal of cancer research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.035
H-Index - 141
eISSN - 1349-7006
pISSN - 0910-5050
DOI - 10.1111/j.1349-7006.1995.tb03031.x
Subject(s) - single strand conformation polymorphism , polymerase chain reaction , pathology , biology , breast cancer , biopsy , microbiology and biotechnology , gene mutation , mutation , gene , cancer research , cancer , medicine , genetics
Genomic DNA was extracted from aspiration biopsy specimens taken from 15 suspected cases of breast cancer, including 7 known cases of breast cancer, and the p53 gene was studied for evidence of mutation by using a polymerase chain reaction‐single strand conformation polymorphism (PCR‐SSCP) analysis. In 5 of the 15’cases (33%), p53 gene mutation was identified and these tumors were subsequently histologically diagnosed as malignant. Further, DNA flow cytometry of the 15 tumors demonstrated that 6 (40%) were aneuploid and malignant, whereas 9 (60%) were diploid and benign. It was also found that the tumor cells in 5 aspirated cases that showed p53 gene mutations were all aneuploid, the p53 protein expression was positive, and the tumors were proved to be histologically malignant. It was thus concluded that the detection of p53 gene mutation by PCR‐SSCP analysis of aspirated biopsy specimens from suspected breast cancers is a helpful method for achieving a more accurate diagnosis.