Mutational analysis of the estrogen-receptor gene in endometrial carcinoma.

Published

Journal Article

OBJECTIVE: To determine whether mutation in the DNA of the estrogen-receptor gene occurs in endometrial cancer. METHODS: Polymerase chain reaction amplification and single-stranded conformation polymorphism analysis of the entire coding region (exons 1-8) of the human estrogen-receptor gene, as well as an untranslated region (exon I*) in the gene, were performed on genomic DNA extracted from 56 snap-frozen endometrial cancers. All cancers demonstrating mobility shifts on single-stranded conformation polymorphism suggestive of DNA sequence alteration were subjected to definitive DNA sequencing of the relevant portion of the estrogen-receptor gene. RESULTS: In addition to detecting a frequent, previously described polymorphism in exon 1, single-stranded conformation polymorphism analysis of the 56 endometrial cancers identified seven cancers with mobility shifts. Three cancers shifted in exon 3, one cancer each shifted in exons 4 and 7, and two shifted in exon 8. Deoxyribonucleic acid sequencing revealed sequence alterations in all seven cases demonstrating mobility shifts. In six of these seven cases, these alterations were consistent with infrequent silent polymorphisms; in the seventh cancer, the sequence alteration proved to be a somatic missense mutation at codon 537 in the region of the estrogen-receptor gene encoding the hormone-binding domain of the receptor protein. CONCLUSION: The infrequent DNA mutation in the estrogen-receptor gene is unlikely to account for the variation in estrogen-receptor expression observed in endometrial cancer.

Full Text

Duke Authors

Cited Authors

  • Kohler, MF; Berkholz, A; Risinger, JI; Elbendary, A; Boyd, J; Berchuck, A

Published Date

  • July 1995

Published In

Volume / Issue

  • 86 / 1

Start / End Page

  • 33 - 37

PubMed ID

  • 7784019

Pubmed Central ID

  • 7784019

International Standard Serial Number (ISSN)

  • 0029-7844

Digital Object Identifier (DOI)

  • 10.1016/0029-7844(95)00113-6

Language

  • eng

Conference Location

  • United States