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Nat Genet. 2002 Nov;32(3):355-7. Epub 2002 Oct 15.

Frequent somatic mutations in PTEN and TP53 are mutually exclusive in the stroma of breast carcinomas.

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  • 1Comprehensive Cancer Center, and the Division of Human Genetics, Department of Internal Medicine, The Ohio State University, Columbus, Ohio 43210, USA.

Erratum in

  • Nat Genet 2002 Dec;32(4):681.


We have recently shown that loss of heterozygosity of specific markers, including those at 10q23, 17p13-p15 and 16q24, can occur in the stromal and epithelial compartments of primary invasive breast carcinomas. Here, we demonstrate high frequencies of somatic mutations in TP53 (encoding tumor protein p53) and PTEN (encoding phosphate and tensin homolog) in breast neoplastic epithelium and stroma. Mutations in TP53 and PTEN are mutually exclusive in either compartment. In contrast, mutations in WFDC1 (16q24, encoding WAP four-disulfide core domain 1) occur with low frequency in the stroma.

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