Variability in organ-specific EGFR mutational spectra in tumour epithelium and stroma may be the biological basis for differential responses to tyrosine kinase inhibitors

Br J Cancer. 2005 May 23;92(10):1922-6. doi: 10.1038/sj.bjc.6602557.

Abstract

Organ-specific differences in epidermal growth factor receptor (EGFR) mutational spectra and frequencies were found in lung cancer and sporadic and BRCA1/2-related breast cancers. Additionally, we found a high frequency of EGFR mutations in the tumour stroma of these invasive breast carcinomas. Those organ-specific mutational spectra and potential targets in the cancer-associated stroma might influence the efficacy of TKI therapy.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Antineoplastic Agents / pharmacology*
  • Breast Neoplasms / genetics*
  • Breast Neoplasms / pathology
  • Carcinoma / genetics*
  • Carcinoma / pathology
  • DNA Mutational Analysis
  • Enzyme Inhibitors / pharmacology*
  • ErbB Receptors / genetics*
  • Genes, BRCA1
  • Genes, BRCA2
  • Humans
  • Lung Neoplasms / genetics*
  • Lung Neoplasms / pathology
  • Protein-Tyrosine Kinases / antagonists & inhibitors*
  • Stromal Cells

Substances

  • Antineoplastic Agents
  • Enzyme Inhibitors
  • ErbB Receptors
  • Protein-Tyrosine Kinases