Harmine reduces ROS-mediated hepatotoxicity in a cisplatin mouse model

Area of Science:

• Pharmacology
• Hepatology
• Toxicology

Background:

• Cisplatin is a chemotherapy drug with known hepatotoxicity.
• Oxidative stress and apoptosis are key mechanisms in cisplatin-induced liver injury.
• Harmine is a plant-derived alkaloid with potential therapeutic properties.

Purpose of the Study:

• To investigate the protective effects of harmine against cisplatin-induced liver damage in mice.
• To explore harmine's role in modulating pathways of reactive oxygen species (ROS)-induced apoptosis.

Main Methods:

• Male Balb/c mice were divided into four groups: control, harmine-only, cisplatin-only, and cisplatin + harmine.
• Mice received daily intraperitoneal injections for four days (harmine) or a single injection (cisplatin).
• Liver tissues and blood were collected for biochemical, molecular, and histopathological analyses.

Main Results:

• Cisplatin increased liver damage markers, ROS, malondialdehyde, nitric oxide, and apoptosis, while decreasing antioxidants.
• Harmine co-administration significantly improved these parameters compared to cisplatin alone.
• Cisplatin upregulated pro-apoptotic genes (caspase-8, BAX, p53, caspase-3, TNF-α, NF-κB) and downregulated BCL-2; harmine reversed these changes.

Conclusions:

• Harmine exhibits significant hepatoprotective effects against cisplatin-induced liver injury.
• Harmine's action is attributed to its antioxidant and anti-inflammatory properties, suppressing ROS production and apoptosis.
• Harmine ameliorates cisplatin-induced hepatitis by mitigating intrinsic, extrinsic, and inflammation-driven apoptotic pathways.