RRC ID 17657
Author Tang X, Yao K, Zhang L, Yang Y, Yao H.
Title Honokiol inhibits H(2)O(2)-induced apoptosis in human lens epithelial cells via inhibition of the mitogen-activated protein kinase and Akt pathways.
Journal Eur. J. Pharmacol.
Abstract Oxidative stress-induced apoptosis in lens epithelial cells plays an important role in cataract formation, and its prevention may be of therapeutic interest. This study was performed to investigate the protective effect and mechanisms of honokiol on H(2)O(2)-induced apoptosis in human lens epithelial (HLE) cells. HLE cells (SRA01-04) were pretreated with honokiol at concentrations of 5μM, 10μM and 20μM before 50μM H(2)O(2) treatment. The results demonstrated that pretreatment of honokiol inhibited the activation of caspase-3 and caspase-9 and downregulated the expression of Bcl-2. Mechanistically, honokiol suppressed H(2)O(2)-induced phosphorylation of ERK1/2, p38 mitogen-activated protein kinase (MAPK), JNK and Akt. Honokiol also inhibited H(2)O(2)-induced nuclear factor-κB (NF-κB)/p65 phosphorylation and translocation in HLE cells. These results demonstrate that honokiol suppresses H(2)O(2)-induced HLE cell apoptosis via interference with the MAPKs, Akt and NF-κB signaling, suggesting that honokiol might have a potential effect against cataract formation.
Volume 650(1)
Pages 72-8
Published 2011-1-10
DOI 10.1016/j.ejphar.2010.09.076
PII S0014-2999(10)00997-0
PMID 20965163
MeSH Apoptosis / drug effects* Biphenyl Compounds / pharmacology* Caspase 3 / genetics Caspase 3 / metabolism Caspase 9 / genetics Caspase 9 / metabolism Cell Line Down-Regulation / drug effects Enzyme Activation / drug effects Epithelial Cells / cytology Epithelial Cells / drug effects* Epithelial Cells / enzymology Epithelial Cells / metabolism Humans Hydrogen Peroxide / pharmacology* Lens, Crystalline / cytology Lignans / pharmacology* Mitogen-Activated Protein Kinases / metabolism* Protein Transport / drug effects Proto-Oncogene Proteins c-akt / metabolism* Proto-Oncogene Proteins c-bcl-2 / genetics Signal Transduction / drug effects* Transcription Factor RelA / metabolism Up-Regulation / drug effects
IF 3.17
Times Cited 12
Human and Animal Cells SRA 01/04 (RCB1591)