Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 1 de 1
Filter
Add more filters

Database
Language
Affiliation country
Publication year range
1.
Biomed Pharmacother ; 115: 108901, 2019 Jul.
Article in English | MEDLINE | ID: mdl-31079002

ABSTRACT

An ingredient was isolated from Acanthus ilicifolius and identified as 4-hydroxy-2(3H)-benzoxazolone (HBOA). Its protective effects and underlying mechanism on liver fibrosis were investigated. Briefly, rats were intragastrically administrated with 50% CCl4 twice a week for 12 weeks to induce liver fibrosis. Meanwhile, the animals were treated with various medicines from weeks 8 to 12. Then the histological change, serum biochemical index, inflammatory factors and hepatocyte apoptosis were detected. Moreover, the TGF-ß1/Smads, NF-κB and ERK signaling pathways were also detected to illustrate the underlying mechanism. The results showed that HBOA significantly ameliorated CCl4-induced liver injury and collagen accumulation in rats, as evidenced by the histopathologic improvement. Moreover, HBOA markedly decreased hepatocyte apoptosis by regulating the expression levels of caspase-3, -9 and -12, as well as the Bcl-2 family. The mechanism study showed that HBOA significantly decreased the expressions of α-smooth muscle actin (α-SMA) and collagen and inhibited the generation of excessive extracellular matrix (ECM) components by restoring the balance between matrix metalloproteinases (MMPs) and its inhibitor (TIMPs). HBOA markedly alleviated oxidative stress and inflammatory cytokines through inhibiting the NF-κB pathway. In addition, HBOA significantly down-regulated the levels of TGF-ß1, Smad2/3, Smad4 and up-regulated the level of Smad7, inhibiting the TGF-ß1/Smads signaling pathway. Moreover, HBOA significantly blocked the ERK signaling pathway, leading to the inactivation of hepatic stellate cells. This study suggests that HBOA exerts a protective effect against liver fibrosis via modulating the TGF-ß1/Smads, NF-κB and ERK signaling pathways, which will be developed as a potential agent for the treatment of liver fibrosis.


Subject(s)
Anti-Inflammatory Agents/pharmacology , Benzoxazoles/pharmacology , Liver Cirrhosis, Experimental/prevention & control , MAP Kinase Signaling System/drug effects , NF-kappa B/metabolism , Oxazolone/pharmacology , Smad Proteins/metabolism , Transforming Growth Factor beta/metabolism , Acanthaceae/chemistry , Animals , Anti-Inflammatory Agents/isolation & purification , Benzoxazoles/isolation & purification , Carbon Tetrachloride , Liver Cirrhosis, Experimental/immunology , Liver Cirrhosis, Experimental/metabolism , Male , Medicine, Chinese Traditional , Oxazolone/isolation & purification , Oxazolone/therapeutic use , Oxidative Stress/drug effects , Oxidative Stress/immunology , Rats, Sprague-Dawley
SELECTION OF CITATIONS
SEARCH DETAIL