Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/53666
Title: Implications of MicroRNAs in the treatment of gefitinib-resistant non-small cell lung cancer
Authors: Sin, TK
Wang, FF
Meng, F
Wong, SCC 
Cho, WCS
Siu, PM 
Chan, LWC 
Keywords: EGFR
Gefitinib
miRNA
Non-small cell lung cancer
Resistance
Issue Date: Feb-2016
Publisher: Molecular Diversity Preservation International (MDPI)
Source: International journal of molecular sciences, Feb. 2016, v. 17, no. 2, 237, p. 1-13 How to cite?
Journal: International journal of molecular sciences 
Abstract: Non-small cell lung cancer (NSCLC) represents about 85% of the reported cases of lung cancer. Acquired resistance to targeted therapy with epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs), such as gefitinib, is not uncommon. It is thus vital to explore novel strategies to restore sensitivity to gefitinib. Provided that microRNAs (miRNAs) negatively regulate their gene targets at the transcriptional level, it is speculated that miRNA mimetics may reduce the expression, activity and signal transduction of EGFR so that sensitization of tumour sites to gefitinib-induced cytotoxicity can be achieved. Indeed, a growing body of evidence has shown that the manipulation of endogenous levels of miRNA not only attenuates the EGFR/PI3K/Akt phosphorylation cascade, but also restores apoptotic cell death in in vitro models of experimentally-induced gefitinib resistance and provoked tumour regression/shrinkage in xenograft models. These data are in concordant with the clinical data showing that the differential expression profiles of miRNA in tumour tissues and blood associate strongly with drug response and overall survival. Furthermore, another line of studies indicate that the chemopreventive effects of a variety of natural compounds may involve miRNAs. The present review aims to discuss the therapeutic capacity of miRNAs in relation to recent discoveries on EGFR-TKI resistance, including chronic drug exposure and mutations.
URI: http://hdl.handle.net/10397/53666
ISSN: 1661-6596
EISSN: 1422-0067
DOI: 10.3390/ijms17020237
Rights: © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
The following Molecular Diversity Preservation International (MDPI) publication Sin, T. K., Wang, F., Meng, F., Wong, S. C., Cho, W., Siu, P. M., ... & Yung, B. Y. (2016). Implications of MicroRNAs in the Treatment of Gefitinib-Resistant Non-Small Cell Lung Cancer. International journal of molecular sciences, 17(2), 237 is available at http://dx.doi.org/10.3390/ijms17020237
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