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Independent chondrogenic potential of canine bone marrow-derived mesenchymal stem cells in monolayer expansion cultures decreases in a passage-dependent pattern

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Journal of veterinary medical science 80 (11) 1681-1687.pdf1.44 MBPDFView/Open
Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/73200

Title: Independent chondrogenic potential of canine bone marrow-derived mesenchymal stem cells in monolayer expansion cultures decreases in a passage-dependent pattern
Authors: Bwalya, Eugene C. Browse this author
Wijekoon, H. M. Suranji Browse this author
Fang, Jing Browse this author
Kim, Sangho Browse this author
Hosoya, Kenji Browse this author
Okumura, Masahiro Browse this author →KAKEN DB
Keywords: bone marrow-derived mesenchymal stem cell
chondrogenesis
dog
monolayer culture
phenotype
Issue Date: Nov-2018
Publisher: 公益社団法人 日本獣医学会
Journal Title: Journal of veterinary medical science
Volume: 80
Issue: 11
Start Page: 1681
End Page: 1687
Publisher DOI: 10.1292/jvms.18-0202
Abstract: Although chondroinductive growth factors are considered necessary for chondrogenesis of bone marrow-derived mesenchymal stem cells (BMSC), independent and spontaneous chondrogenesis has been previously demonstrated in adult horses, bovine calves and adult human BMSC. Surprisingly, adult canine BMSC under similar culture conditions previously failed to demonstrate chondrogenesis. The present study evaluated independent chondrogenic potential of BMSC sourced from three young dogs in the absence of known chondroinductive factors. BMSC were culture expanded in 10% DMEM up to third passage (P3). At each passage, the phenotype of BMSC was evaluated by RT-PCR gel electrophoresis and qPCR. BMSC exhibited a chondrogenic phenotype in the absence of dexamethasone and TGF-beta 1 as verified by the expression of Sox-9, type II collagen and aggrecan. Sox-9 was significantly downregulated (P<0.05) from P1-P3 compared to P0 while type II and X collagen, and aggrecan were significantly downregulated at P3 compared to P0. There was a significant (P<0.01) negative correlation between passaging and Sox-9, type II collagen and aggrecan gene expression. These results indicate that independent chondrogenic potential and phenotype retention of BMSC decreases in a passage-dependent pattern. Therefore, caution should be exercised for future experiments evaluating the chondrogenic potential of BMSC after extensive expansion cultures in 10% DMEM.
Rights: https://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article
URI: http://hdl.handle.net/2115/73200
Appears in Collections:獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 奥村 正裕

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