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    Cancer Res. 1998 Apr 1;58(7):1384-6.

    Low frequency of somatic mutations in the LKB1/Peutz-Jeghers syndrome gene in sporadic breast cancer.

    Bignell GR, Barfoot R, Seal S, Collins N, Warren W, Stratton MR.

    Section of Cancer Genetics, Institute of Cancer Research, Sutton, Surrey, United Kingdom.

    Germ-line mutations in the LKB1 gene on chromosome 19p are responsible for most cases of the Peutz-Jeghers syndrome, in which intestinal hamartomas are associated with elevated risks of several cancer types, including breast cancer. We have evaluated the role of somatic mutations in LKB1 in breast cancer. Of 40 informative primary breast cancers, 3 showed loss of heterozygosity on chromosome 19p in the vicinity of LKB1, and no somatic mutations of LKB1 were observed in 62 primary breast cancers and 17 established breast cancer cell lines. The results indicate that mutations in LKB1 do not play an important role in the development of sporadic breast cancer.

    PMID: 9537235 [PubMed - indexed for MEDLINE]

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