title: Overexpressed Calponin3 by Subsonic Vibration Induces Neural Differentiation of hUC-MSCs by Regulating the Ionotropic Glutamate Receptor.
abstract: In this study, we used proteomics to investigate the effects of sonic vibration (SV) on mesenchymal stem cells derived from human umbilical cords (hUC-MSCs) during neural differentiation to understand how SV enhances neural differentiation of hUC-MSCs. We investigated the levels of gene and protein related to neural differentiation after 3 or 5 days in a group treated with 40-Hz SV. In addition, protein expression patterns were compared between the control and the 40-Hz SV-treated hUC-MSC groups via a proteomic approach. Among these proteins, calponin3 (CNN3) was confirmed to have 299 % higher expression in the 40-Hz SV stimulated hUC-MSCs group than that in the control by Western blotting. Notably, overexpression of CNN3-GFP in Chinese hamster ovary (CHO)-K1 cells had positive effects on the stability and reorganization of F-actin compared with that in GFP-transfected cells. Moreover, CNN3 changed the morphology of the cells by making a neurite-like form. After being subjected to SV, messenger RNA (mRNA) levels of glutamate receptors such as PSD95, GluR1, and NR1 as well as intracellular calcium levels were upregulated. These results suggest that the activity of glutamate receptors increased because of CNN3 characteristics. Taken together, these results demonstrate that overexpressed CNN3 during SV increases expression of glutamate receptors and promotes functional neural differentiation of hUC-MSCs.
authors.affiliation: College of Life of Life Sciences and Biotechnology, Korea University, 1-5, Anam Dong, Seongbuk-Gu, Seoul, 136-701, Korea.
authors.forename: Hyun-Jung
authors.initials: HJ
authors.lastname: Kim
authors.forename: Jin-Hee
authors.initials: JH
authors.lastname: Kim
authors.forename: Yeo-Ju
authors.initials: YJ
authors.lastname: Song
authors.forename: Young-Kwon
authors.initials: YK
authors.lastname: Seo
authors.forename: Jung-Keug
authors.initials: JK
authors.lastname: Park
authors.forename: Chan-Wha
authors.initials: CW
authors.lastname: Kim
mesh_terms: D000199:Actins / Q000378:metabolism; D000818:Animals; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000494:pharmacology; D016466:CHO Cells; D002118:Calcium / Q000378:metabolism; D002135:Calcium-Binding Proteins / Q000378:metabolism*; D002454:Cell Differentiation / Q000187:drug effects; D006224:Cricetinae; D003412:Cricetulus; D005786:Gene Expression Regulation / Q000187:drug effects; D006801:Humans; D059630:Mesenchymal Stem Cells / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D008840:Microfilament Proteins / Q000378:metabolism*; D009474:Neurons / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D055550:Protein Stability / Q000187:drug effects; D058468:Receptors, Ionotropic Glutamate / Q000378:metabolism*; D015203:Reproducibility of Results; D021241:Spectrometry, Mass, Electrospray Ionization; D013569:Synapses / Q000187:drug effects / Q000378:metabolism; D053778:Thiazolidines / Q000494:pharmacology; D014465:Ultrasonics; D014470:Umbilical Cord / Q000166:cytology*; D014732:Vibration; D000096985:Calponins
chemical_list: D000199:Actins; D019086:Bridged Bicyclo Compounds, Heterocyclic; D002118:Calcium; D002135:Calcium-Binding Proteins; D008840:Microfilament Proteins; D058468:Receptors, Ionotropic Glutamate; D053778:Thiazolidines; D000096985:Calponins; C037068:latrunculin B