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. 2020 Jan 8;10:1512. doi: 10.3389/fphar.2019.01512

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Copyright © 2020 Wu, Lin, Wang, Li, Liu, Ye, Huang, Lin, Liu, Zhang, Li, Zhao, Lv, Li, Wang and Liu

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Krüppel-like factor 4 (KLF4) expression was decreased in human non-small cell lung cancer (NSCLC) tissues. (A) Western blot of KLF4 in human NSCLC tissues and adjacent normal tissues from the individual patient. GAPDH was used as a loading control. (B) The quantitation of KLF4 expression in each sample was normalized with that of GAPDH by determining the KLF4/GAPDH ratio. N; Normal. T; Tumor. (C) Quantitative analysis demonstrating a significant decrease of KLF4 expression in the tumor tissues compared with adjacent normal tissues. Data presented are medians. **p < 0.05.