Inhibition of urease-mediated ammonia production by 2-octynohydroxamic acid in hepatic encephalopathy.


Journal

Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555

Informations de publication

Date de publication:
12 Mar 2024
Historique:
received: 23 06 2023
accepted: 28 02 2024
medline: 13 3 2024
pubmed: 13 3 2024
entrez: 13 3 2024
Statut: epublish

Résumé

Hepatic encephalopathy is a neuropsychiatric complication of liver disease which is partly associated with elevated ammonemia. Urea hydrolysis by urease-producing bacteria in the colon is often mentioned as one of the main routes of ammonia production in the body, yet research on treatments targeting bacterial ureases in hepatic encephalopathy is limited. Herein we report a hydroxamate-based urease inhibitor, 2-octynohydroxamic acid, exhibiting improved in vitro potency compared to hydroxamic acids that were previously investigated for hepatic encephalopathy. 2-octynohydroxamic acid shows low cytotoxic and mutagenic potential within a micromolar concentration range as well as reduces ammonemia in rodent models of liver disease. Furthermore, 2-octynohydroxamic acid treatment decreases cerebellar glutamine, a product of ammonia metabolism, in male bile duct ligated rats. A prototype colonic formulation enables reduced systemic exposure to 2-octynohydroxamic acid in male dogs. Overall, this work suggests that urease inhibitors delivered to the colon by means of colonic formulations represent a prospective approach for the treatment of hepatic encephalopathy.

Identifiants

pubmed: 38472276
doi: 10.1038/s41467-024-46481-8
pii: 10.1038/s41467-024-46481-8
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

2226

Informations de copyright

© 2024. The Author(s).

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Auteurs

Diana Evstafeva (D)

Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.

Filip Ilievski (F)

Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.

Yinyin Bao (Y)

Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.

Zhi Luo (Z)

Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.

Boris Abramovic (B)

Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.

Sunghyun Kang (S)

Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.

Christian Steuer (C)

Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.

Elita Montanari (E)

Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.

Tommaso Casalini (T)

Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.

Dunja Simicic (D)

CIBM Center for Biomedical Imaging, Lausanne, Switzerland.
Animal Imaging and Technology, EPFL, Lausanne, Switzerland.

Dario Sessa (D)

Swiss Pediatric Liver Center, Department of Pediatrics, Gynecology and Obstetrics, University Hospitals Geneva and University of Geneva, Geneva, Switzerland.

Stefanita-Octavian Mitrea (SO)

CIBM Center for Biomedical Imaging, Lausanne, Switzerland.
Animal Imaging and Technology, EPFL, Lausanne, Switzerland.

Katarzyna Pierzchala (K)

CIBM Center for Biomedical Imaging, Lausanne, Switzerland.
Animal Imaging and Technology, EPFL, Lausanne, Switzerland.

Cristina Cudalbu (C)

CIBM Center for Biomedical Imaging, Lausanne, Switzerland.
Animal Imaging and Technology, EPFL, Lausanne, Switzerland.

Chelsie E Armbruster (CE)

Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA.

Jean-Christophe Leroux (JC)

Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland. jleroux@ethz.ch.

Classifications MeSH