TY - JOUR A2 - Ming, Xin AU - Chen, Yang AU - Huang, Fei AU - Deng, liang AU - Yuan, Xiaowei AU - Tao, Qiang AU - Wang, Tielong AU - Li, Dong AU - Fan, Youwen AU - Peng, Quanzhou AU - Tang, Di PY - 2019 DA - 2019/11/07 TI - HIF-1-miR-219-SMC4 Regulatory Pathway Promoting Proliferation and Migration of HCC under Hypoxic Condition SP - 8983704 VL - 2019 AB - This paper aims to investigate the function of structural maintenance of chromosome 4 (SMC4) in the progression of hepatocellular carcinoma (HCC) under hypoxic condition. In this study, we found that suppression of SMC4 could inhibit proliferation and migration of HCC cells through inducing G1 phase arrest and affecting process of epithelial-mesenchymal transition (EMT) under hypoxic condition. Moreover, we demonstrated that SMC4 was transcriptionally regulated by hypoxia-inducible factor-1 (HIF-1) under hypoxic condition. As SMC has been shown to be a target gene of miR-219, we observed that miR-219 was downregulated under hypoxic condition and suppression of HIF-1a could lead to the upregulation of miR-219. We also proved that miR-219 could affect the proliferation and migration of HCC cells under hypoxic condition. In conclusion, our study demonstrated a novel HIF-1-miR-219-SMC4 regulatory pathway under hypoxic condition in HCC cells. SN - 2314-6133 UR - https://doi.org/10.1155/2019/8983704 DO - 10.1155/2019/8983704 JF - BioMed Research International PB - Hindawi KW - ER -