Synergistic Activation of AMPK by AdipoR1/2 Agonist and Inhibitor of EDPs–EBP Interaction Recover NAFLD Through Enhancing Mitochondrial Function in Mice

Nonalcoholic fatty liver disease(NAFLD),especially nonalcoholic steatohepatitis(NASH),is a common hepatic manifestation of metabolic syndrome.However,there are no effective therapy to treat this devastating disease.Accumulating evidence suggests that the generation of elastin-derived peptides(EDPs)and the inhibition of adiponectin receptors(AdipoR)1/2 plays essential roles in hepatic lipid metabolism and liver fibrosis.We recently reported that the AdipoR 1/2 dual agonist JT003 significantly degraded the extra-cellular matrix(ECM)and ameliorated liver fibrosis.However,the degradation of the ECM lead to the gener-ation of EDPs,which could further alter liver homeostasis negatively.Thus,in this study,we successfully combined AdipoR 1/2 agonist JT003 with V14,which acted as an inhibitor of EDPs-EBP interaction to over-come the defect of ECM degradation.We found that combination of JT003 and V14 possessed excellent syn-ergistic benefits on ameliorating NASH and liver fibrosis than either alone since they compensate the shortage of each other.These effects are induced by the enhancement of the mitochondrial antioxidant capacity,mito-phagy,and mitochondrial biogenesis via AMPK pathway.Furthermore,specific suppression of AMPK could block the effects of the combination of JT003 and V14 on reduced oxidative stress,increased mitophagy and mitochondrial biogenesis.These positive results suggested that this administration of combination of Adi-poR1/2 dual agonist and inhibitor of EDPs-EBP interaction can be recommended alternatively for an effective and promising therapeutic strategy for the treatment of NAFLD and NASH related fibrosis.