Abstract Title:

Antiinflammatory and antiatherogenic effects of the NF-kappaB inhibitor acetyl-11-keto-beta-boswellic acid in LPS-challenged ApoE-/- mice.

Abstract Source:

Arterioscler Thromb Vasc Biol. 2008 Feb;28(2):272-7. Epub 2007 Nov 21. PMID: 18032778

Abstract Author(s):

Clarisse Cuaz-Pérolin, Ludivine Billiet, Eric Baugé, Corinne Copin, Daniel Scott-Algara, Felicitas Genze, Berhold Büchele, Tatiana Syrovets, Thomas Simmet, Mustapha Rouis


OBJECTIVE: In this article, we studied the effect of acetyl-11-keto-beta-boswellic acid (AKbetaBA), a natural inhibitor of the proinflammatory transcription factor NF-kappaB on the development of atherosclerotic lesions in apolipoprotein E-deficient (apoE-/-) mice. METHODS AND RESULTS: Atherosclerotic lesions were induced by weekly LPS injection in apoE-/- mice. LPS alone increased atherosclerotic lesion size by approximately 100%, and treatment with AKbetaBA significantly reduced it by approximately 50%. Moreover, the activity of NF-kappaB was also reduced in the atherosclerotic plaques of LPS-injected apoE-/- mice treated with AKbetaBA. As a consequence, AKbetaBA treatment led to a significant downregulation of several NF-kappaB-dependent genes such as MCP-1, MCP-3, IL-1alpha, MIP-2, VEGF, and TF. By contrast, AKbetaBA did not affect the plasma concentrations of triglycerides, total cholesterol, antioxidized LDL antibodies, and various subsets of lymphocyte-derived cytokines. Moreover, AKbetaBA potently inhibited the IkappaB kinase (IKK) activity immunoprecipitated from LPS-stimulated mouse macrophages and mononuclear cells leading to decreased phosphorylation of IkappaB alpha and inhibition of p65/NF-kappaB activation. Comparable AKbetaBA-mediated inhibition was also observed in LPS-stimulated human macrophages. CONCLUSIONS: The inhibition of NF-kappaB activity by plant resins from species of the Boswellia family might represent an alternative for classical medicine treatments for chronic inflammatory diseases such as atherosclerosis."

Study Type : Animal Study

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