2. Academic Validation
  3. Design, synthesis and biological evaluation of 1,5-disubstituted α-amino tetrazole derivatives as non-covalent inflammasome-caspase-1 complex inhibitors with potential application against immune and inflammatory disorders

Design, synthesis and biological evaluation of 1,5-disubstituted α-amino tetrazole derivatives as non-covalent inflammasome-caspase-1 complex inhibitors with potential application against immune and inflammatory disorders

  • Eur J Med Chem. 2022 Feb 5:229:114002. doi: 10.1016/j.ejmech.2021.114002.
Fausta Ulgheri 1,  Pietro Spanu 2,  Francesco Deligia 3,  Giovanni Loriga 3,  Maria Pia Fuggetta 4,  Iris de Haan 5,  Ajay Chandgudge 5,  Matthew Groves 5,  Alexander Domling 6
Affiliations

Affiliations

  • 1 Institute of Biomolecular Chemistry, National Research Council (CNR), Trav. La Crucca 3, 07100, Sassari, Italy. Electronic address: fausta.ulgheri@cnr.it.
  • 2 Institute of Biomolecular Chemistry, National Research Council (CNR), Trav. La Crucca 3, 07100, Sassari, Italy. Electronic address: pietro.spanu@cnr.it.
  • 3 Institute of Biomolecular Chemistry, National Research Council (CNR), Trav. La Crucca 3, 07100, Sassari, Italy.
  • 4 Institute of Traslational Pharmacology, National Research Council (CNR), Via Fosso Del Cavaliere 100, 00133, Roma, Italy.
  • 5 Department of Drug Design, University of Groningen, 9713 AV Groningen, the Netherlands.
  • 6 Department of Drug Design, University of Groningen, 9713 AV Groningen, the Netherlands. Electronic address: a.s.s.domling@rug.nl.
PMID: 34823899 DOI: 10.1016/j.ejmech.2021.114002
Abstract

Compounds targeting the inflammasome-caspase-1 pathway could be of use for the treatment of inflammation and inflammatory diseases. Previous Caspase-1 inhibitors were in great majority covalent inhibitors and failed in clinical trials. Using a mixed modelling, computational screening, synthesis and in vitro testing approach, we identified a novel class of non-covalent Caspase-1 non cytotoxic inhibitors which are able to inhibit IL-1β release in activated macrophages in the low μM range, in line with the best activities observed for the known covalent inhibitors. Our compounds could form the basis of further optimization towards potent drugs for the treatment of inflammation and inflammatory disorders including also dysregulated inflammation in Covid 19.

Keywords

1,5-Disubstituted α-amino tetrazole derivatives; Anti-inflammatory drug candidates; Caspase-1 non-covalent inhibitors; Inflammasome; Multicomponent reactions.

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