Soluble epoxide hydrolase-targeting PROTAC activates AMPK and inhibits endoplasmic reticulum stress - 11/11/23

Abstract |
Soluble epoxide hydrolase (sEH) is a drug target with the potential for therapeutic utility in the areas of inflammation, neurodegenerative disease, chronic pain, and diabetes, among others. Proteolysis-targeting chimeras (PROTACs) molecules offer new opportunities for targeting sEH, due to its capacity to induce its degradation. Here, we describe that the new ALT-PG2, a PROTAC that degrades sEH protein in the human hepatic Huh-7 cell line, in isolated mouse primary hepatocytes, and in the liver of mice. Remarkably, sEH degradation caused by ALT-PG2 was accompanied by an increase in the phosphorylated levels of AMP-activated protein kinase (AMPK), while phosphorylated extracellular-signal-regulated kinase 1/2 (ERK1/2) was reduced. Consistent with the key role of these kinases on endoplasmic reticulum (ER) stress, ALT-PG2 attenuated the levels of ER stress and inflammatory markers. Overall, the findings of this study indicate that targeting sEH with degraders is a promising pharmacological strategy to promote AMPK activation and to reduce ER stress and inflammation.
Le texte complet de cet article est disponible en PDF.Graphical Abstract |
Highlights |
• | The ALT-PG2 is a PROTAC that degrades sEH protein in hepatocytes. |
• | sEH degradation by ALT-PG2 activates AMPK, while decreases phosphorylated ERK1/2. |
• | ALT-PG2 attenuates ER stress and the levels of inflammatory markers. |
• | Targeting sEH with PROTACs is a promising pharmacological strategy to activate AMPK. |
Keywords : SEH, PROTAC, AMPK, ER stress, Hepatocyte
Plan
Vol 168
Article 115667- décembre 2023 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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