A novel phosphodiesterase inhibitor for the treatment of chronic liver injury and metabolic diseases.

Autor:	Staller DW; Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, Nebraska, USA., Panigrahi SS; Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA., Jayasinghe YP; Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA., Dong Y; Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA., Mahto S; Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA., Kumar V; Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA., Ronning DR; Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA.; Department of Pharmaceutical Sciences, UNMC Center for Drug Design and Innovation, University of Nebraska Medical Center, Omaha, Nebraska, USA., Mahato RI; Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, Nebraska, USA.; Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA.
Jazyk:	angličtina
Zdroj:	Hepatology (Baltimore, Md.) [Hepatology] 2024 Jul 01. Date of Electronic Publication: 2024 Jul 01.
DOI:	10.1097/HEP.0000000000000999
Abstrakt:	Background and Aims: Chronic liver disease leads to ~2 million deaths annually. Cyclic AMP (cAMP) signaling has long been studied in liver injury, particularly in the regulation of fatty acid (FA) β-oxidation and pro-inflammatory polarization of tissue-resident lymphocytes. Phosphodiesterase 4B inhibition has been explored as a therapeutic modality, but these drugs have had limited success and are known to cause significant adverse effects. The PDE4 inhibitor 2-(4-([2-(5-Chlorothiophen-2-yl)-5-ethyl-6-methylpyrimidin-4-yl]amino)phenyl)acetic acid) (known as A-33) has yet to be explored for the treatment of metabolic diseases. Approach and Results: Herein, we evaluated the efficacy of A-33 in the treatment of animal models of alcohol-associated liver disease and steatotic liver disease. We demonstrated that A-33 effectively ameliorated the signs and symptoms of chronic liver disease, resulting in significant decreases in serum alanine aminotransferase and aspartate aminotransferase levels, decreased overall fat and collagen deposition in the liver, decreased intrahepatic triglyceride concentrations, and normalized expression of genes related to β-oxidation of fatty acids, inflammation, and extracellular matrix deposition. We also designed and synthesized a novel analog of A-33, termed MDL3, which inhibited both phosphodiesterase 4B and PDE5A and was more effective in ameliorating pathophysiological signs and symptoms of liver injury and inflammation. In addition, MDL3 re-sensitized obese mice to glucose and significantly inhibited the pathological remodeling of adipose tissue, which was not observed with A-33 administration. Conclusions: In conclusion, we synthesized and demonstrated that MDL3, a novel phosphodiesterase 4B and PDE5A inhibitor, presents a promising avenue of exploration for treating chronic liver disease. (Copyright © 2024 American Association for the Study of Liver Diseases.)
Databáze:	MEDLINE
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