alexa Clusterin is protective in pancreatitis through anti-apoptotic and anti-inflammatory properties.
Genetics & Molecular Biology

Genetics & Molecular Biology

Journal of Tissue Science & Engineering

Author(s): Savkovi V, Gantzer H, Reiser U, Selig L, Gaiser S,

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Abstract Clusterin is overexpressed in pancreas during the acute phase of pancreatitis. We intended to clarify the role of clusterin expression in stressed exocrine pancreas. We performed in vitro experiments in transfected AR4-2J cells with modified expression levels of clusterin and in vivo studies in clusterin-deficient mice. AR4-2J cells were exposed to agents mimicking cell-stress during pancreatitis (cerulein, hydrogen peroxide, staurosporine or lysophosphatidylcholine). Clusterin-overexpressing AR4-2J cells showed higher viability after cell stress and accordingly reduced rates of apoptosis and lessened caspase-3 activation. Blockage of endogenous clusterin expression reduced viability and enhanced apoptosis. Presence of clusterin reduced NF-kappaB activation and expression of the NF-kappaB target genes TNF-alpha and MOB-1 under cell stress. Clusterin-deficient mice showed a more severe course of acute experimental pancreatitis with enhanced rates of apoptosis and inflammatory cell infiltration. We concluded that clusterin was protective during inflammation of exocrine pancreas because of its anti-apoptotic and anti-inflammatory functions. This article was published in Biochem Biophys Res Commun and referenced in Journal of Tissue Science & Engineering

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