Ferulic acid prevents aflatoxin B1-induced liver injury in rats via inhibiting cytochrome P450 enzyme, activating Nrf2/GST pathway and regulating mitochondrial pathway

• Published in: Ecotoxicology and environmental safety Vol. 224; p. 112624
• Main Authors: Wang, Xinghe, He, Yang, Tian, Jinlong, Muhammad, Ishfaq, Liu, Mingchun, Wu, Changde, Xu, Chang, Zhang, Xiaohuan
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier Inc 01.11.2021; Elsevier
• Subjects: AFB1; Apoptosis; CYP450; Ferulic acid; Hepatocyte; Oxidative stress; VAL; Oxidative stress; HHC; ILE; DMSO; GLN; ALT; AFB1; PHE; PRO; TBA; TUNEL; Hepatocyte; CYP450; CYS; Cyt-c; ASP; THR; AST; AKP; AFBO; Ferulic acid; GGT; AFB1-ALB; AFB1-DNA; ALA; FA; LEU; Apoptosis
• ISSN: 0147-6513; 1090-2414
• DOI: 10.1016/j.ecoenv.2021.112624

Aflatoxin B1 (AFB1) causes oxidative stress and hepatocyte apoptosis through its epoxidized metabolite AFBO, which is catalyzed by CYP450 enzymes. Ferulic acid (FA) is a phenolic acid commonly found in plants and is known for its antioxidant capacity. However, the role of FA in AFB1-induced liver injury is still elusive. In this study, rats were exposed to AFB1 and simultaneously treated with FA for 30 days. The results showed that I) FA alleviated the histopathological changes induced by AFB1, inhibited the elevation of serological indexes induced by AFB1, and reduced the production of AFBO in liver. II) AFB1-induced increase in CYP450 expression was significantly reduced by FA. The molecular docking results of FA and CYP2A6 showed high fitness score and interaction. III) FA obviously inhibited the production of MDA, and significantly activated the Nrf2/GST pathway and antioxidant enzymes (SOD and GST). IV) AFB1-induced hepatocyte apoptosis, the high expression of p53, bax, cyt-c, caspase-9, caspase-3, and the low expression of bcl-2 were all restored by FA. It has been suggested from these results that FA proved effective against AFB1-induced liver damage in rats via inhibiting CYP450 enzyme, promoting antioxidant pathway Nrf2/GST, activating antioxidant enzymes (SOD and GST), and regulating the mitochondrial pathway. [Display omitted] •FA reduce the production of AFBO in liver by inhibiting CYP450.•FA alleviate AFB1-induced oxidative damage by activating Nrf2/GST pathway.•FA reduce AFB1-induced hepatocytes apoptosis by regulating mitochondrial pathway.•FA reduce AFB1-induced hepatocytes apoptosis by inhibiting the formation AFB1-DNA.