Abstract Title:

Curcumin attenuated acute Propionibacterium acnes-induced liver injury through inhibition of HMGB1 expression in mice.

Abstract Source:

Int Immunopharmacol. 2015 Feb ;24(2):159-65. Epub 2014 Dec 13. PMID: 25510585

Abstract Author(s):

Qiaoli Gu, Honggeng Guan, Qin Shi, Yanyun Zhang, Huilin Yang

Article Affiliation:

Qiaoli Gu

Abstract:

Curcumin is a phenolic product isolated from the rhizome of Curcuma longa and has protective effects on inflammatory diseases. Here we investigated the protective effect of curcumin in acute Propionibacterium acnes (P. acnes)-induced inflammatory liver injury. C57BL/6 mice were primed with P. acnes followed by LPS challenge to induce fulminant hepatitis. Curcumin or vehicle control was administered perorally by gavage once daily starting 2days before P. acnes priming. We found that curcumin significantly improved mouse mortality. Then, to investigate the underlying mechanisms of curcumin in this acute inflammatory liver injury model, we primed C57BL/6 mice with P. acnes only. We found that curcumin treatment attenuated P. acnes-induced liver injury as evidenced by decreased production of ALT. In addition, curcumin treatment reduced the production of proinflammatory cytokines such as TNF-α and IFN-γ, accompanied by reduced hepatocyte apoptosis. Furthermore, curcumin treatment significantly reduced HMGB1 cytoplasmic translocation and expression by down-regulating acetylation of lysine. Taken together, our results suggest that curcumin protects mice from P. acnes-induced liver injury through reduction of HMGB1 cytoplasmic translocation and expression.

Study Type : Animal Study

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