p53 mutations in prostatic intraepithelial neoplasia and concurrent carcinoma: analysis of laser capture microdissected specimens from non-transition and transition zones.

Abstract excerpt

Prostatic intraepithelial neoplasia (PIN) is characterized by intraluminal proliferation of epithelial cells and is divided into high-grade (HGPIN) and low-grade (LGPIN) lesions. HGPIN is regarded as the most likely precursor of prostatic cancer (PCA). Microdissected DNA selectively extracted from paraffin-embedded sections of 27 cases with PCA were analyzed for p53 mutation in exons 5 - 8 by single-strand...

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