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Effects of propofol on the expression of matric metalloproteinases in rat cardiac fibroblasts after hypoxia and reoxygenation.

 J. H. Jun  ;  J. E. Cho  ;  Y. L. Kwak  ;  J. K. Shim  ;  Y. H. Shim 
 British Journal of Anaesthesia, Vol.106(5) : 650-658, 2011 
Journal Title
 British Journal of Anaesthesia 
Issue Date
BACKGROUND: Propofol is known to protect the myocardium against ischaemia/reperfusion (I/R) injury through its antioxidant and anti-inflammatory properties. Matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) are involved in cell migration and invasion, and mediate tissue remodelling during I/R injury. They are regulated by various mechanisms including oxidative stress and AKT and ERK pathways. We investigated whether propofol affected the expression of MMPs and subsequent cell migration and invasion and the signalling pathways involved in primary rat cardiac fibroblasts undergoing hypoxia and reoxygenation. METHODS: The phosphorylation of ERK and AKT signalling pathways was examined by western blot analysis in rat primary cardiac fibroblasts after hypoxia and reoxygenation. mRNA expression of MMP and TIMPS was analysed by real-time PCR, and proteolytic activities of MMP-2 and -9 were assessed. The effects of propofol on migration, invasion, wound healing, and cell proliferation activity were evaluated after reoxygenation. RESULTS: Propofol induced AKT and ERK1/2 activation. Subsequent activation of MMPs resulted in increased cell migration, invasion, and wound-healing activity under hypoxia-reoxygenation, which was decreased by LY294002 (AKT inhibitor) and U0126 (ERK inhibitor) in rat cardiac fibroblasts. However, propofol had no effect on proliferation or viability of cardiac fibroblasts after hypoxia-reoxygenation. CONCLUSIONS: Propofol affected the expression of MMPs and TIMPs and subsequently induced cell migration and invasive ability, through activation of the ERK and AKT signalling pathway in hypoxia-reoxygenated rat cardiac fibroblasts
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실)
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Life Science (의생명과학부)
Yonsei Authors
곽영란(Kwak, Young Lan) ; 심연희(Shim, Yon Hee) ; 심재광(Shim, Jae Kwang) ; 전지혜(Jun, Ji Hae) ; 조장은(Cho, Jang Eun)
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