Overexpression of OCT4 is associated with gefitinib resistance in non-small cell lung cancer
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Bin Li1, Zhouhong Yao1, Yunyan Wan1, Dianjie Lin1
1Department of Respiratory Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, Shandong, China, 250021
Dianjie Lin, email: email@example.com
Keywords: NSCLC, chemoresistance, OCT4, gefitinib, proliferation, apoptosis
Received: August 15, 2016 Accepted: October 14, 2016 Published: October 31, 2016
Epidermal growth factor receptor (EGFR)-targeted tyrosine kinase inhibitors (TKIs) have emerged as first-line drugs for non-small cell lung cancers (NSCLCs). However, the resistance to TKIs represents the key limitation for their therapeutic efficacy. We found that the difference of OCT4 expression between NSCLC and the adjacent non-tumourous tissues was statistically significant. Knockdown of OCT4 in NSCLC cells could decrease cell proliferation, and potentiate apoptosis induced by gefitinib, suggesting OCT4 may contribute to gefitinib resistance in NSCLC.
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