Background Circular RNAs (circRNAs) is a novel class of non-coding RNAs that regulate gene expression during cancer progression. Circ_0092314 is a newly discovered circRNA that was upregulated in pancreatic cancer (PAAD) tissues. However, the detailed functions and underlying mechanisms of circ_0092314 in PAAD cells remain unclear. Methods We first determined the expression of circ_0092314 in PAAD and normal tissues and further investigated the functional roles of circ_0092314 in regulating epithelial-mesenchymal transition (EMT) of PAAD cells. We also assessed the regulatory action of circ_0092314 on the microRNA-671 (miR-671) and its target S100P. Results Circ_0092314 was markedly upregulated in PAAD tissues and cells, and its overexpression was closely correlated with worse prognosis of PAAD patients. Functionally, circ_0092314 promotes proliferation, invasion and EMT in vitro and tumor growth in vivo. Mechanistically, we demonstrated that circ_0092314 directly binds to miR-671 and relieve its suppression of the downstream target S100P, which induces EMT and activates the AKT signaling pathway. The tumor-promoting effects caused by overexpression of circ_0092314 could be revered by re-expression of miR-671 in PAAD cells. Conclusions Overall, our study demonstrates that circ_0092314 exerts critical roles in promoting the EMT features of PAAD cells, and provides insight into how elevated expression of circ_0092314 might influence PAAD progression.
基金:
National Natural Science Foundation of China [81974381]
第一作者单位:[1]Huazhong Univ Sci & Technol,Tongji Hosp,Dept Oncol,Tongji Med Coll,Wuhan,Peoples R China
通讯作者:
推荐引用方式(GB/T 7714):
Shen Qian,Zheng Gang,Zhou Yi,et al.CircRNA circ_0092314 Induces Epithelial-Mesenchymal Transition of Pancreatic Cancer Cells via Elevating the Expression of S100P by Sponging miR-671[J].FRONTIERS IN ONCOLOGY.2021,11:doi:10.3389/fonc.2021.675442.
APA:
Shen, Qian,Zheng, Gang,Zhou, Yi,Tong, Jin,Xu, Sanpeng...&Fu, Qiang.(2021).CircRNA circ_0092314 Induces Epithelial-Mesenchymal Transition of Pancreatic Cancer Cells via Elevating the Expression of S100P by Sponging miR-671.FRONTIERS IN ONCOLOGY,11,
MLA:
Shen, Qian,et al."CircRNA circ_0092314 Induces Epithelial-Mesenchymal Transition of Pancreatic Cancer Cells via Elevating the Expression of S100P by Sponging miR-671".FRONTIERS IN ONCOLOGY 11.(2021)