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Kwon RJ, Han ME, Kim JY, Liu L, Kim YH, Jung JS, Oh SO. ZHX1 Promotes the Proliferation, Migration and Invasion of Cholangiocarcinoma Cells. PLoS One 2016; 11:e0165516. [PMID: 27835650 PMCID: PMC5105949 DOI: 10.1371/journal.pone.0165516] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 10/13/2016] [Indexed: 02/06/2023] Open
Abstract
Zinc-fingers and homeoboxes 1 (ZHX1) is a transcription repressor that has been associated with the progressions of hepatocellular carcinoma, gastric cancer, and breast cancer. However, the functional roles of ZHX1 in cholangiocarcinoma (CCA) have not been determined. We investigated the expression and roles of ZHX1 during the proliferation, migration, and invasion of CCA cells. In silico analysis and immunohistochemical studies showed amplification and overexpression of ZHX1 in CCA tissues. Furthermore, ZHX1 knockdown using specific siRNAs decreased CCA cell proliferation, migration, and invasion, whereas ZHX1 overexpression promoted all three characteristics. In addition, results suggested EGR1 might partially mediate the effect of ZHX1 on the proliferation of CCA cells. Taken together, these results show ZHX1 promotes CCA cell proliferation, migration, and invasion, and present ZHX1 as a potential target for the treatment of CCA.
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Affiliation(s)
- Ryuk-Jun Kwon
- Department of Anatomy, School of Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
- Gene & Therapy Research Center for Vessel-associated Diseases, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
| | - Myoung-Eun Han
- Department of Anatomy, School of Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
- Gene & Therapy Research Center for Vessel-associated Diseases, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
| | - Ji-young Kim
- Department of Anatomy, School of Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
- Gene & Therapy Research Center for Vessel-associated Diseases, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
| | - Liangwen Liu
- Department of Anatomy, School of Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
- Gene & Therapy Research Center for Vessel-associated Diseases, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
| | - Yun-Hak Kim
- Department of Anatomy, School of Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
- Gene & Therapy Research Center for Vessel-associated Diseases, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
| | - Jin-Sup Jung
- Department of Physiology, School of Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
| | - Sae-Ock Oh
- Department of Anatomy, School of Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
- Gene & Therapy Research Center for Vessel-associated Diseases, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan, 50612, Republic of Korea
- * E-mail:
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