title: MicroRNA-29c/PTEN pathway is involved in mice brain development and modulates neurite outgrowth in PC12 cells.
abstract: Growing evidence indicates that microRNAs (miRNAs) are important mediators of brain development and neurite growth. However, the affected signaling mechanisms are not clearly clarified. In the present study, we confirm that miR-29c is expressed during mice brain development and increases neurite outgrowth via decreasing PTEN expression. We first screen the picked-out miR-29c up-regulated in PC12 cells induced by nerve growth factor (NGF). In silico analysis of possible miR-29c targets, VEGFA, MAPK3, PDGFB, and PTEN mRNA are proposed as relatively likely putative binding sites for miR-29c. Subsequently, we detect that miR-29c is involved in brain development and has a negative relationship with the expression of PTEN. Then, using luciferase reporter assay,we demonstrate that miR-29c could directly target to the 3'-UTR of PTEN mRNA and result in down-expression of PTEN. By infecting PC12 cells with lentiviral pLKO-miR-29c or control, we also find that increasing levels of miR-29c markedly increase Akt phosphorylation level, and thus, promote neurite outgrowth of PC12 cells. Together, our results identify that miR-29c is required for mice brain development and modulates neurite outgrowth in PC12 cells via targeting PTEN and has a promising therapeutic target for neural disease.
authors.affiliation: Department of Orthopedics, the Third Affiliated Hospital of Suzhou University, No. 185 Juqian street, Changzhou, Jiangsu, 213003, China.
authors.forename: Hongjun
authors.initials: H
authors.lastname: Zou
authors.affiliation: Department of Orthopedics, the Third Affiliated Hospital of Suzhou University, No. 185 Juqian street, Changzhou, Jiangsu, 213003, China.
authors.forename: Ya
authors.initials: Y
authors.lastname: Ding
authors.affiliation: Department of Clinical Laboratory, the Third Affiliated Hospital of Suzhou University, No. 185 Juqian Street, Changzhou, Jiangsu, 213003, China.
authors.forename: Weifeng
authors.initials: W
authors.lastname: Shi
authors.affiliation: Department of Orthopedics, the Third Affiliated Hospital of Suzhou University, No. 185 Juqian street, Changzhou, Jiangsu, 213003, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Xu
authors.affiliation: School of Medicine, Jiangsu University, Zhenjiang, 212013, China.
authors.forename: Aihua
authors.initials: A
authors.lastname: Gong
authors.affiliation: School of Medicine, Jiangsu University, Zhenjiang, 212013, China.
authors.forename: Zhijian
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Orthopedics, the Third Affiliated Hospital of Suzhou University, No. 185 Juqian street, Changzhou, Jiangsu, 213003, China. czljbljb@126.com.|Department of Orthopaedics, The First People's Hospital of Changzhou, School of Medicine, Third Affiliated Hospital of Suzhou University, No. 185 of Juqian Street, Changzhou, 213000, China. czljbljb@126.com.
authors.forename: Jinbo
authors.initials: J
authors.lastname: Liu
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001921:Brain / Q000196:embryology / Q000254:growth & development / Q000378:metabolism*; D057809:HEK293 Cells; D006801:Humans; D051379:Mice; D008807:Mice, Inbred BALB C; D035683:MicroRNAs / Q000096:biosynthesis*; D016501:Neurites / Q000378:metabolism*; D016716:PC12 Cells; D051059:PTEN Phosphohydrolase / Q000096:biosynthesis*; D051381:Rats; D015398:Signal Transduction / Q000502:physiology*
chemical_list: C547014:MIRN29 microRNA, mouse; D035683:MicroRNAs; D051059:PTEN Phosphohydrolase; C487757:Pten protein, mouse