PMID- 34512755 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210914 IS - 1687-8450 (Print) IS - 1687-8469 (Electronic) IS - 1687-8450 (Linking) VI - 2021 DP - 2021 TI - Circular RNA hsa_circ_0006117 Facilitates Pancreatic Cancer Progression by Regulating the miR-96-5p/KRAS/MAPK Signaling Pathway. PG - 9213205 LID - 10.1155/2021/9213205 [doi] LID - 9213205 AB - Circular RNAs (circRNAs) play key roles in many malignant tumors, including pancreatic cancer (PC); however, whether circular RNA hsa_circ_0006117, a newly identified circRNA, has a role in PC has not been investigated. Here, in order to elucidate the role and potential molecular mechanisms of circRNAs, we utilized bioinformatic tolls to screen the differentially expressed circRNAs in PC. Subsequently, circular RNA hsa_circ_0006117 was identified as being highly expressed in PC tissues in a screen of two GEO datasets, which was further verified in PC cell lines and tissues. Then, its molecular characteristics were investigated using methods such as Sanger sequencing and fluorescence in situ hybridization (FISH). Functional experiments subsequently indicated that circular RNA hsa_circ_0006117 facilitated the malignant behaviors of PC cells, prompting that it plays an oncogenic role in PC. Moreover, we found that circular RNA hsa_circ_0006117 exerts its PC-promoting effects via activating the KRAS/mitogen-activated protein kinase (MAPK) signaling pathway. Through bioinformatics exploration and dual-luciferase reporter assays, miR-96-5p was identified as a downstream target of circular RNA hsa_circ_0006117. A series of assays confirmed that circular RNA hsa_circ_0006117 acted as a miR-96-5p sponge, thereby promoting the malignant features of PC in a miR-96-5p/KRAS axis-dependent manner. Taken together, our study indicated, for the first time, that the specifically highly expressed circular RNA hsa_circ_0006117 facilitates PC progression via the modulation of the miR-96-5p/KRAS/MAPK signaling pathway and might be a hopeful therapeutic target for PC. CI - Copyright (c) 2021 Tao Liu et al. FAU - Liu, Tao AU - Liu T AUID- ORCID: 0000-0002-1441-2765 AD - School of Clinical Medicine, Guizhou Medical University, Guiyang 550000, China. AD - Department of Hepatic-Biliary-Pancreatic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China. FAU - Zhou, Lei AU - Zhou L AUID- ORCID: 0000-0003-4743-903X AD - School of Clinical Medicine, Guizhou Medical University, Guiyang 550000, China. AD - Department of Hepatic-Biliary-Pancreatic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China. FAU - He, Zhiwei AU - He Z AUID- ORCID: 0000-0002-5689-9006 AD - School of Clinical Medicine, Guizhou Medical University, Guiyang 550000, China. AD - Department of Hepatic-Biliary-Pancreatic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China. FAU - Chen, Yankun AU - Chen Y AUID- ORCID: 0000-0003-0102-8833 AD - School of Clinical Medicine, Guizhou Medical University, Guiyang 550000, China. AD - Department of Hepatic-Biliary-Pancreatic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China. FAU - Jiang, Xueyi AU - Jiang X AUID- ORCID: 0000-0002-5429-1865 AD - School of Clinical Medicine, Guizhou Medical University, Guiyang 550000, China. AD - Department of Hepatic-Biliary-Pancreatic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China. FAU - Xu, Jian AU - Xu J AUID- ORCID: 0000-0002-9750-7689 AD - Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China. FAU - Jiang, Jianxin AU - Jiang J AUID- ORCID: 0000-0001-7939-9082 AD - School of Clinical Medicine, Guizhou Medical University, Guiyang 550000, China. AD - Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China. LA - eng PT - Journal Article DEP - 20210902 PL - Egypt TA - J Oncol JT - Journal of oncology JID - 101496537 PMC - PMC8433013 COIS- The authors declare that there are no conflicts of interest regarding the publication of this study. EDAT- 2021/09/14 06:00 MHDA- 2021/09/14 06:01 PMCR- 2021/09/02 CRDT- 2021/09/13 06:45 PHST- 2021/06/10 00:00 [received] PHST- 2021/08/05 00:00 [revised] PHST- 2021/08/17 00:00 [accepted] PHST- 2021/09/13 06:45 [entrez] PHST- 2021/09/14 06:00 [pubmed] PHST- 2021/09/14 06:01 [medline] PHST- 2021/09/02 00:00 [pmc-release] AID - 10.1155/2021/9213205 [doi] PST - epublish SO - J Oncol. 2021 Sep 2;2021:9213205. doi: 10.1155/2021/9213205. eCollection 2021.