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Effects of cyclic equibiaxial mechanical stretch on ?-BK and TRPV4 expression in equine chondrocytes

Hdud, Ismail M.; Mobasheri, Ali; Loughna, Paul


Ismail M. Hdud

Ali Mobasheri

Paul Loughna



Chondrocytes are regularly exposed to load-induced stimuli and have the capability to sense and respond to applied mechanical stress. However, the mechanisms involved in chondrocyte mechanotransduction are not clearly understood. The purpose of this study was to explore the effects of cyclic equibiaxial mechanical stretch on the expression of ?-BK and TRPV4 channels.

Freshly isolated equine articular chondrocytes were subjected to mechanical stress (8% elongation at frequency of 0.5 Hz for 8 h). Western blotting was used to investigate the expression of BKCa and TRPV4 channel proteins. Mechanical stretch increased the expression of BKCa channels by 1.8 fold but TRPV4 expression was not affected.

Upregulation of BKCa channel may be the result of direct membrane stretch or elevated intracellular Ca2+.


Hdud, I. M., Mobasheri, A., & Loughna, P. (2014). Effects of cyclic equibiaxial mechanical stretch on ?-BK and TRPV4 expression in equine chondrocytes. SpringerPlus, 3, Article 59.

Journal Article Type Article
Acceptance Date Jan 21, 2014
Publication Date Jan 29, 2014
Deposit Date Sep 25, 2017
Publicly Available Date Sep 25, 2017
Journal SpringerPlus
Electronic ISSN 2193-1801
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 3
Article Number 59
Keywords Chondrocyte; Mechanical stretch; TRPV4; BK channel; Mechanotransduction
Public URL
Publisher URL


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