EGFR Mutations in Lung Cancer: Correlation with Clinical Response to Gefitinib Therapy

Author:

Paez J. Guillermo12345,Jänne Pasi A.12345,Lee Jeffrey C.12345,Tracy Sean12345,Greulich Heidi12345,Gabriel Stacey12345,Herman Paula12345,Kaye Frederic J.12345,Lindeman Neal12345,Boggon Titus J.12345,Naoki Katsuhiko12345,Sasaki Hidefumi12345,Fujii Yoshitaka12345,Eck Michael J.12345,Sellers William R.12345,Johnson Bruce E.12345,Meyerson Matthew12345

Affiliation:

1. Departments of Medical Oncology and Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA.

2. Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.

3. Departments of Pathology and Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.

4. The Broad Institute at MIT and Harvard, Cambridge, MA 02142, USA.

5. Genetics Branch, National Cancer Institute, National Naval Medical Center, Bethesda, MD 20889, USA.

Abstract

Receptor tyrosine kinase genes were sequenced in non–small cell lung cancer (NSCLC) and matched normal tissue. Somatic mutations of the epidermal growth factor receptor gene EGFR were found in 15of 58 unselected tumors from Japan and 1 of 61 from the United States. Treatment with the EGFR kinase inhibitor gefitinib (Iressa) causes tumor regression in some patients with NSCLC, more frequently in Japan. EGFR mutations were found in additional lung cancer samples from U.S. patients who responded to gefitinib therapy and in a lung adenocarcinoma cell line that was hypersensitive to growth inhibition by gefitinib, but not in gefitinib-insensitive tumors or cell lines. These results suggest that EGFR mutations may predict sensitivity to gefitinib.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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