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Article

EGFR mutation status in a series of Turkish non-small cell lung cancer patients

  • Authors:
    • Gizem Calibasi-Kocal
    • Arsalan Amirfallah
    • Tolga Sever
    • Olcun Umit Unal
    • Duygu Gurel
    • Ilhan Oztop
    • Hulya Ellidokuz
    • Yasemin Basbinar
  • View Affiliations / Copyright

    Affiliations: Department of Translational Oncology, Institute of Oncology, Dokuz Eylul University, Izmir 35340, Turkey, Biomedical Center, Faculty of Medicine, University of Iceland, 101 Reykjavik, Iceland, Bozyaka Education and Research Hospital, Division of Medical Oncology, Department of Internal Medicine, University of Health Sciences, Izmir 35170, Turkey, Departments of Pathology and Medical Oncology, Faculty of Medicine, Dokuz Eylul University, Izmir 35340, Turkey, Departments of Medical Oncology, Faculty of Medicine, Dokuz Eylul University, Izmir 35340, Turkey, Department of Preventive Oncology, Institute of Oncology, Dokuz Eylul University, Izmir 35340, Turkey
  • Article Number: 2
    |
    Published online on: June 2, 2020
       https://doi.org/10.3892/br.2020.1308
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Abstract

Epidermal growth factor receptor (EGFR) mutations are potential markers driving carcinogenesis, and may alter the response to EGFR tyrosine kinase inhibitors in patients with non‑small cell lung cancer (NSCLC). The frequency of EGFR mutations in patients with NSCLC differs according to sex, smoking habits and regional‑based ethnicity differences. The aim of the present study was to determine the frequency of EGFR mutations in Turkish patients with NSCLC to highlight the importance of regional differences, and their associations with patient characteristics. Genomic DNA was extracted from formalin‑fixed and paraffin‑embedded tumor tissue sections of 409 NSCLC patients. The most common EGFR mutations in exons 18, 19, 20 and 21 were detected using BioFilmChip‑based microarray assay. The overall EGFR mutation frequency was 16.6%, and the highest mutation frequencies were observed in exon 19 (6.4%) and exon 21 (7.3%). There was a higher frequency of EGFR mutations in females compared with males and in never‑smokers compared with smokers (both P≤0.05). These results were similar to other European population‑based studies, but not consistent Middle‑Eastern based studies. The present study may contribute to understanding the gradient frequency of EGFR mutation across different ethnicities, and in designing genome wide‑based collaborations that may reveal novel decision making and susceptibility mutations in EGFR in patients with NSCLC.
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Copy and paste a formatted citation
Spandidos Publications style
Calibasi-Kocal G, Amirfallah A, Sever T, Umit Unal O, Gurel D, Oztop I, Ellidokuz H and Basbinar Y: EGFR mutation status in a series of Turkish non-small cell lung cancer patients. Biomed Rep 13: 2, 2020.
APA
Calibasi-Kocal, G., Amirfallah, A., Sever, T., Umit Unal, O., Gurel, D., Oztop, I. ... Basbinar, Y. (2020). EGFR mutation status in a series of Turkish non-small cell lung cancer patients. Biomedical Reports, 13, 2. https://doi.org/10.3892/br.2020.1308
MLA
Calibasi-Kocal, G., Amirfallah, A., Sever, T., Umit Unal, O., Gurel, D., Oztop, I., Ellidokuz, H., Basbinar, Y."EGFR mutation status in a series of Turkish non-small cell lung cancer patients". Biomedical Reports 13.2 (2020): 2.
Chicago
Calibasi-Kocal, G., Amirfallah, A., Sever, T., Umit Unal, O., Gurel, D., Oztop, I., Ellidokuz, H., Basbinar, Y."EGFR mutation status in a series of Turkish non-small cell lung cancer patients". Biomedical Reports 13, no. 2 (2020): 2. https://doi.org/10.3892/br.2020.1308
Copy and paste a formatted citation
x
Spandidos Publications style
Calibasi-Kocal G, Amirfallah A, Sever T, Umit Unal O, Gurel D, Oztop I, Ellidokuz H and Basbinar Y: EGFR mutation status in a series of Turkish non-small cell lung cancer patients. Biomed Rep 13: 2, 2020.
APA
Calibasi-Kocal, G., Amirfallah, A., Sever, T., Umit Unal, O., Gurel, D., Oztop, I. ... Basbinar, Y. (2020). EGFR mutation status in a series of Turkish non-small cell lung cancer patients. Biomedical Reports, 13, 2. https://doi.org/10.3892/br.2020.1308
MLA
Calibasi-Kocal, G., Amirfallah, A., Sever, T., Umit Unal, O., Gurel, D., Oztop, I., Ellidokuz, H., Basbinar, Y."EGFR mutation status in a series of Turkish non-small cell lung cancer patients". Biomedical Reports 13.2 (2020): 2.
Chicago
Calibasi-Kocal, G., Amirfallah, A., Sever, T., Umit Unal, O., Gurel, D., Oztop, I., Ellidokuz, H., Basbinar, Y."EGFR mutation status in a series of Turkish non-small cell lung cancer patients". Biomedical Reports 13, no. 2 (2020): 2. https://doi.org/10.3892/br.2020.1308
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