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Article Publish Status: FREE
Abstract Title:

Hydrogen peroxide-induced apoptosis of human lens epithelial cells is inhibited by parthenolide.

Abstract Source:

Int J Ophthalmol. 2018 ;11(1):12-17. Epub 2018 Jan 18. PMID: 29375984

Abstract Author(s):

Xing-Chao Shentu, Xi-Yuan Ping, Ya-Lan Cheng, Xin Zhang, Ye-Lei Tang, Xia-Jing Tang

Article Affiliation:

Xing-Chao Shentu

Abstract:

AIM: To explore the effect of parthenolide on hydrogen peroxide (HO)-induced apoptosis in human lens epithelial (HLE) cells.

METHODS: The morphology and number of apoptotic HLE cells were assessed using light microscopy and flow cytometry. Cell viability was tested by MTS assay. In addition, the expression of related proteins was measured by Western blot assay.

RESULTS: Apoptosis of HLE cells was induced by 200µmol/L HO, and the viability of these cells was similar to the half maximal inhibitory concentration (IC50), as examined by MTS assay. In addition, cells were treated with either different concentrations (6.25, 12.5, 25 and 50µmol/L) of parthenolide along with 200 µmol/L HOor only 50µmol/L parthenolide or 200 µmol/L HOfor 24h. Following treatment with higher concentrations of parthenolide (50µmol/L), fewer HLE cells underwent HO-induced apoptosis, and cell viability was increased. Further, Western blot assay showed that the parthenolide treatment reduced the expression of caspase-3 and caspase-9, which are considered core apoptotic proteins, and decreased the levels of phosphorylated nuclear factor-κB (NF-κB), ERK1/2 [a member of the mitogen-activated protein kinase (MAPK) family], and Akt proteins in HLE cells.

CONCLUSION: Parthenolide may suppress HO-induced apoptosis in HLE cells by interfering with NF-κB, MAPKs, and Akt signaling.

Study Type : In Vitro Study

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