Article Publish Status: FREE
Abstract Title:

Protective effects of honokiol against oxidative stress-induced apoptotic signaling in mouse podocytes treated with H2O2.

Abstract Source:

Exp Ther Med. 2018 Aug ;16(2):1278-1284. Epub 2018 Jun 14. PMID: 30116378

Abstract Author(s):

Fang Wu, Hangping Yao, Fenping Zheng, Shengjie Tang, Xihua Lin, Lin Li, Jiaqiang Zhou, Hong Li

Article Affiliation:

Fang Wu


Honokiol (HNK), an important bioactive compound purified from, has been demonstrated to have manifold beneficial anti-oxidative, anti-inflammatory, anti-bacterial and antitumor pharmacological effects. In the present study, the association of HNK in the signaling mechanism associated with hydrogen peroxide (HO)-induced apoptosis of cultured mouse podocytes was investigated. HNK did not cause significant changes in podocyte viability when its concentration remained below 20µM. MTS assay and flow cytometry confirmed that HOsignificantly enhanced the rates of apoptosis while produce significant reduction in viability of podocytes. Following 24 h of pre-treatment with different concentrations of HNK, the viability of adherent podocytes increased and apoptosis significantly decreased in a dose-dependent manner below 20µM. Reverse transcription-polymerase chain reaction and western blot results indicated that HNK significantly decreased the expression of mRNA and cleaved protein of caspase-3 and caspase-9 in podocytes pre-treated with HO. Furthermore, phosphorylation of the signaling molecules protein kinase B (Akt) and extracellular signal-regulated kinase (Erk) 1/2 appeared to increase following HNK treatment. In conclusion, HNK largely eliminated the role of promoting podocyte apoptosis in an oxidative stress environment, which was a protective factor on podocytes cultured with HO. The anti-oxidative stress mechanisms of HNK are partly due to suppressing the expression of caspase-3 and caspase-9 and upregulating phosphorylated-Akt and -Erk 1/2.

Study Type : In Vitro Study

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