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

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

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • AMP-Activated Protein Kinase Kinases
  • Breast Neoplasms / genetics*
  • Chromosomes, Human, Pair 19
  • DNA, Neoplasm / genetics
  • Female
  • Germ-Line Mutation*
  • Humans
  • Loss of Heterozygosity
  • Peutz-Jeghers Syndrome / enzymology
  • Peutz-Jeghers Syndrome / genetics*
  • Protein Serine-Threonine Kinases / genetics*
  • Tumor Cells, Cultured

Substances

  • DNA, Neoplasm
  • Protein Serine-Threonine Kinases
  • STK11 protein, human
  • AMP-Activated Protein Kinase Kinases

Associated data

  • GENBANK/AF055320
  • GENBANK/AF055321
  • GENBANK/AF055322
  • GENBANK/AF055323
  • GENBANK/AF055324
  • GENBANK/AF055325
  • GENBANK/AF055326
  • GENBANK/AF055327