PMID- 32244197 OWN - NLM STAT- MEDLINE DCOM- 20210216 LR - 20210216 IS - 1950-6007 (Electronic) IS - 0753-3322 (Linking) VI - 127 DP - 2020 Jul TI - Upregulation of miR-92a-2-5p potentially contribute to anorectal malformations by inhibiting proliferation and enhancing apoptosis via PRKCA/beta-catenin. PG - 110117 LID - S0753-3322(20)30309-7 [pii] LID - 10.1016/j.biopha.2020.110117 [doi] AB - Anorectal malformations (ARMs) is one of the most common gastrointestinal anomalies. Previous research revealed that miR-92a-2-5p was upregulated in ARMs. However, the underlying roles remains unknown. The current study was to further investigate the spatiotemporal expression patterns of miR-92a-2-5p and its target gene protein kinase C alpha (PRKCA) predicted by bioinformatic method, and to explore their potential functions in anorectal malformations (ARMs). Rat models with ethylenethiourea-induced ARMs were made for subsequent experiments. Direct target relationship between miR-92a-2-5p and PRKCA was validated using a luciferase reporter assay. The spatiotemporal expression pattern of miR-92a-2-5p was evaluated using fluorescence in situ hybridization (FISH), while the expression of PRKCA was revealed by immunohistochemical staining and western blotting. IEC-6 cells were transfected with mimics/mimics NC (Negative control)/inhibitor/inhibitor NC of miR-92a-2-5p or si-PRKCA/si-PRKCA NC, respectively. Then the downstream molecules of miR-92a-2-5p, PRKCA and beta-catenin, were subsequently detected. Meanwhile, apoptosis and viability assays were measured. Dual luciferase assay confirmed the direct regulatory relationship between miR-92a-2-5p and PRKCA. FISH revealed that miR-92a-2-5p was expressed with a higher level in ARMs fetuses. Further analyses of PRKCA showed lower protein expression level in ARMs group, which was opposite to miR-92a-2-5p. In vitro experiments revealed that overexpression of miR-92a-2-5p or knockdown of PRKCA can down-regulate PRKCA, up-regulate and facilitate nuclear localization of beta-catenin, increase apoptosis and decrease proliferation of IEC-6. Taken together, these findings suggest that aberrantly high expression of miR-92a-2-5p potentially contribute to ARMs by inhibiting proliferation and enhancing apoptosis of intestinal cells via negatively regulating PRKCA/beta-catenin. CI - Copyright (c) 2020 The Authors. Published by Elsevier Masson SAS.. All rights reserved. FAU - Long, Cai Yun AU - Long CY AD - Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, PR China. FAU - Xiao, Yun Xia AU - Xiao YX AD - Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, PR China. FAU - Li, Si Ying AU - Li SY AD - Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, PR China. FAU - Tang, Xiao Bing AU - Tang XB AD - Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, PR China. FAU - Yuan, Zheng Wei AU - Yuan ZW AD - The Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, PR China. FAU - Bai, Yu Zuo AU - Bai YZ AD - Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, PR China. Electronic address: baiyz1216@126.com. LA - eng PT - Journal Article DEP - 20200331 PL - France TA - Biomed Pharmacother JT - Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie JID - 8213295 RN - 0 (MIRN92 microRNA, rat) RN - 0 (MicroRNAs) RN - 0 (beta Catenin) RN - 24FOJ4N18S (Ethylenethiourea) RN - EC 2.7.11.13 (Protein Kinase C-alpha) SB - IM MH - Animals MH - Anorectal Malformations/chemically induced/*physiopathology MH - Apoptosis/*physiology MH - Cell Proliferation/*physiology MH - Ethylenethiourea MH - Female MH - MicroRNAs/biosynthesis/*physiology MH - Protein Kinase C-alpha/biosynthesis MH - Rats MH - Up-Regulation MH - beta Catenin/*biosynthesis OTO - NOTNLM OT - Anorectal malformation OT - Apoptosis OT - Development OT - Proliferation OT - Spatiotemporal expression COIS- Declaration of competing Interest The authors declares that they have no competing interests. EDAT- 2020/04/04 06:00 MHDA- 2021/02/17 06:00 CRDT- 2020/04/04 06:00 PHST- 2020/01/04 00:00 [received] PHST- 2020/03/17 00:00 [revised] PHST- 2020/03/19 00:00 [accepted] PHST- 2020/04/04 06:00 [pubmed] PHST- 2021/02/17 06:00 [medline] PHST- 2020/04/04 06:00 [entrez] AID - S0753-3322(20)30309-7 [pii] AID - 10.1016/j.biopha.2020.110117 [doi] PST - ppublish SO - Biomed Pharmacother. 2020 Jul;127:110117. doi: 10.1016/j.biopha.2020.110117. Epub 2020 Mar 31.