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http://dx.doi.org/10.5352/JLS.2019.29.6.645

TFAP2C Promotes Cell Proliferation by Upregulating CDC20 and TRIB3 in Non-small Cell Lung Cancer Cells  

Kim, Dain (Department of Science Education, Korea National University of Education)
Do, Hyunhee (Department of Science Education, Korea National University of Education)
Kang, JiHoon (Department of Integrated Biological Science, Pusan National University)
Youn, BuHyun (Department of Integrated Biological Science, Pusan National University)
Kim, Wanyeon (Department of Science Education, Korea National University of Education)
Publication Information
Journal of Life Science / v.29, no.6, 2019 , pp. 645-652 More about this Journal
Abstract
Non-small cell lung cancer (NSCLC) has the infamous distinction of being the leading cause of global cancer-related death over the past decade, and novel molecular targets are urgently required to change this status. We previously conducted a microarray analysis to investigate the association of transcription factor activating enhancer-binding protein 2C (TFAP2C) with NSCLC and revealed its oncogenic roles in NSCLC development. In this study, to identify new biomarkers for NSCLC, we focused on several oncogenes from the microarray analysis that are transcriptionally regulated by TFAP2C. Here, the cell division cycle 20 (CDC20) and tribbles pseudokinase 3 (TRIB3) were subsequently found as potential potent oncogenes as they are positively regulated by TFAP2C. The results showed that the mRNA and protein levels of CDC20 and TRIB3 were down-regulated in two NSCLC cell lines (NCI-H292 and NCI-H838), which were treated with TFAP2C siRNA, and that the overexpression of either CDC20 or TRIB3 was responsible for promoting cell viability in both NSCLC cell lines. In addition, apoptotic levels of NCI-H292 and NCI-H838 cells treated with TFAP2C siRNA were found to be suppressed by the overexpression of either CDC20 or TRIB3. Together, these results suggest that CDC20 and TRIB3 are positively related to NSCLC tumorigenesis and that they should be considered as potential prognostic markers for developing an NSCLC therapy.
Keywords
CDC20; NSCLC tumorigenesis; oncogene; TFAP2C; TRIB3;
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