Hashim Z, Ilyas A, Zarina S. Therapeutic effect of hydrogen peroxide via altered expression of glutathione S-transferase and peroxiredoxin-2 in hepatocellular carcinoma.
Hepatobiliary Pancreat Dis Int 2020;
19:258-265. [PMID:
32284258 DOI:
10.1016/j.hbpd.2020.03.006]
[Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 03/10/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND
Hepatocellular carcinoma (HCC) has a high incidence and mortality that epitomizes one of the prominent causes of cancer-related death globally. Novel therapeutic approaches are therefore required. Reactive oxygen species (ROS) are necessary for maintaining cell cycle. Although ROS is involved in HCC progression, hydrogen peroxide (H2O2) has anti-proliferative effect on HCC.
METHOD
HCC Huh-7 cells were cultured and incubated with various concentrations of H2O2. Paraoxonase activity, levels of malondialdehyde, glutathione and protein oxidation were measured in treated and untreated Huh-7 cells. Furthermore, untreated and treated Huh-7 cells were subjected to two dimensional gel electrophoresis and identified protein spots which were differentially expressed by LC-MS/MS analysis. qRT-PCR was performed to validate the identified proteins.
RESULTS
H2O2 depleted glutathione (GSH) with the concomitant up-regulation of GSTP1 and Prx2. H2O2 also increased malondialdehyde and protein oxidation, decreased the activity of paraoxonase in Huh-7 cells.
CONCLUSION
H2O2 could be used as a novel therapeutic agent that might be beneficial in inducing cell cytotoxicity and hence suppress HCC proliferation.
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