• Anticancer research · Jan 2006

    EGFR, c-erbB-2 and ki-67 in NSCLC and preneoplastic bronchial lesions.

    • A P Meert, B Martin, J M Verdebout, F Feoli, C Mascaux, V Ninane, and J P Sculier.
    • Department of Intensive Care and Thoracic Oncology, Institut Jules Bordet, Brussels, Belgium. ap.meert@bordet.be
    • Anticancer Res. 2006 Jan 1; 26 (1A): 135-8.

    BackgroundThe relationships between EGF-R and c-erbB-2 with other factors involved in tumour regulation are not well understood. The aim of this study was to correlate the expression of these markers with tumour proliferation.Materials And MethodsThe presence of EGF-R, c-erbB-2 and Ki-67 was evaluated by immunohistochemistry in non-small cell lung cancer (NSCLC) and preneoplastic lesions.ResultsForty-two percent of the tumours were positive for EGF-R, 22% for c-erbB-2 and 97% for Ki-67. No statistically significant correlation was found between EGF-R and Ki-67, EGF-R and c-erbB-2 or between c-erbB-2 and Ki-67. With regards to Ki-67, a significant difference in survival was noted in favour of patients who did not express the marker. In preneoplastic lesions, most of the low-grade lesions showed neither EGF-R nor Ki-67 staining. In contrast, most of the high-grade lesions stained positively for these proteins.ConclusionEGF-R and c-erbB-2 do not seem to be correlated with Ki-67 in NSCLC.

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