Abstract:
:The presence of an appropriate number of viable cells is prerequisite for successive differentiation during chondrogenesis. Chondrogenic differentiation has been reported to be influenced by mechanical stimuli. This research aimed to study the effects of cyclic compressive stress on cell viability of rat bone marrow-derived MSCs (BMSCs) during chondrogenesis as well as its underlying mechanisms. The results showed that dynamic compression increased cell quantity and viability remarkably in the early stage of chondrogenesis, during which the expression of Ihh, Cyclin D1, CDK4, and Col2α1 were enhanced significantly. Possible signal pathways implicated in the process were explored in our study. MEK/ERK and p38 MAPK were not found to function in this process while BMP signaling seemed to play an important role in the mechanotransduction during chondrogenic proliferation. In conclusion, dynamic compressive stress could enhance cell viability during chondrogenesis, which might be achieved by activating BMP signaling.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Wang Y,Wang J,Bai D,Song J,Ye R,Zhao Z,Lei L,Hao J,Jiang C,Fang S,An S,Cheng Q,Li Jdoi
10.1002/jcp.24359subject
Has Abstractpub_date
2013-09-01 00:00:00pages
1935-42issue
9eissn
0021-9541issn
1097-4652journal_volume
228pub_type
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