EML4-ALK translocation is associated with early onset of disease and other clinicopathological features in Chinese female never-smokers with non-small-cell lung cancer

Oncology Letters
Weihong RenQinxian Zhang

Abstract

Non-small-cell lung cancer (NSCLC) with echinoderm microtubule-associated protein-like 4-anaplastic lymphoma kinase (EML4-ALK) translocation is resistant to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs), including gefitinib and erlotinib, but responds to the ALK-TKI crizotinib. Characterization of EML4-ALK translocation may provide invaluable information to facilitate disease diagnosis and improve the outcome of customized treatment. Although the occurrence of EML4-ALK translocation is likely to be affected by the smoking habits and gender of patients, the translocation has not been characterized extensively in female never-smokers with NSCLC. Therefore, 280 female never-smokers that were diagnosed with NSCLC were enrolled in the present study, and characteristics of EML4-ALK translocation, including the frequency, were determined in these NSCLC patients. EML4-ALK fusion variants were detected using Multiplex one-step reverse transcription-polymerase chain reaction and subsequently confirmed by DNA sequencing and Vysis ALK Break Apart fluorescence in situ hybridization analysis. The EML4-ALK fusion variants were detected in 21 carcinoma tissue specimens, accounting for 7.5% of the enrolled patients. ...Continue Reading

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Citations

Nov 2, 2016·The European Respiratory Journal·Alberto Ruano-RavinaJuan Miguel Barros-Dios
Sep 3, 2021·Cancer Research·Hui Liu, Zigang Dong

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