Vinpocetine-based therapy is an attractive strategy against oxidative stress-induced hepatotoxicity in vitro by targeting Nrf2/HO-1 pathway.

EXCLI Journal
Noha AbdelmageedSamy Abdel-Raouf Fahim Morad

Abstract

Vinpocetine (Vin), a synthetic-derivative of Vincamine, monoterpenoid indole alkaloid, has been reported to have various medicinal benefits. The purpose of our study was to investigate the pivotal role of "nuclear factor erythroid 2-related factor-2" (Nrf2)-mediated antioxidant protection of Vin against H2O2 and paracetamol (APAP)-induced liver toxicity. For this purpose, a normal human hepatic cell line (L02 cells) was incubated with cytotoxic concentrations of H2O2 or APAP in the presence or absence of Vin. To evaluate the responses, MTS Cell Viability assay, immunoblotting, biochemical assays, and molecular docking approach were used. Viability analysis showed that treatment of L02 cells with Vin prevented the cytotoxicity induced by H2O2 and APAP. It was evidenced by the fact that Vin dumped H2O2- and APAP-cytotoxicity and reactive oxygen species (ROS) generation. The immunoblotting analysis shows that Vin increased Nrf2 expression along with the expression of target protein, heme oxygenase-1 (HO-1), and increased intracellular glutathione (GSH) level. Interestingly, we found that Vin could protect the protein expression-level of Nrf2, which indicated the prospective interaction between Vin and Keap1 protein. Additionally, ...Continue Reading

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