Gendy Abdallah M, El-Gazar Amira A, Ragab Ghada M, Al-Mokaddem Asmaa K, El-Haddad Alaadin E, Selim Heba Mohammed Refat M, Yousef Einas Mohamed, Hamed Najat O, Ibrahim Sherihan Salaheldin Abdelhamid
Pharmacology and Toxicology Department, Faculty of Pharmacy, October 6 University, Giza 12585, Egypt.
Pharmacology and Toxicology Department, Faculty of Pharmacy, Misr University for Science and Technology, Giza 12585, Egypt.
Pharmaceuticals (Basel). 2022 Dec 21;16(1):6. doi: 10.3390/ph16010006.
Mangiferin (Mang) is a known glucosylxanthone that has proven its shielding effect against ischemia/reperfusion (Is/R). However, its full underlying mechanistic perspective against renal Is/R induced lesions is not fully revealed. Consequently, the purpose of this study is to track further non-investigated modulatory signals of Mang against the renal Is/R model involving nuclear factor erythroid 2-related factor (Nrf)2/heme oxygenase (HO)-1, peroxisome proliferator-activated receptor (PPAR)-γ/nuclear factor (NF)-κB, p38 mitogen-activated protein kinase (MAPK), and c-Jun N-terminal kinase (JNK) signaling. To ratify our aim, Mang was administrated (20 mg/kg, i.p for seven days) before the induction of bilateral Is/R. Mechanistic maneuver revealed that Mang balanced oxidative state via increasing the expression of the antioxidant Nrf2/HO-1 cue with subsequent enhancement of GSH besides MDA lessening. Additionally, Mang enhanced PPAR-γ mRNA expression and declined -p38 MAPK and -JNK expression with concomitant NF-κB downsizing leading to iNOS/NOx and TNF-α rebating. Furthermore, the Mang anti-apoptotic trait was affirmed by enriching Bcl-2 expression as well as decreasing Bax and caspase-3 expression. All these potentials were in the line with the molecular docking results and the improved histopathological findings and renal function biomarkers. Consequently, Mang provided plausible protective mechanisms against renal Is/R-related events, possibly by amending oxidative status, inflammatory mediators, and apoptotic cell death through the involvement of Nrf2, PPAR-γ, MAPK, JNK, and NF-κB signaling.
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