Abstract:
:Pyroptosis is a caspase-1-dependent pro-inflammatory form of programmed cell death implicated in the pathogenesis of autoinflammatory diseases as well as in disorders characterized by excessive cell death and inflammation. Activation of NLRP3 inflammasome is a key event in the pyroptotic cascade. In this study, we describe the synthesis and chemical tuning of α,β-unsaturated electrophilic warheads toward the development of antipyroptotic compounds. Their pharmacological evaluation and structure-activity relationships are also described. Compound 9 was selected as a model of this series, and it proved to be a reactive Michael acceptor, irreversibly trapping thiol nucleophiles, which prevented both ATP- and nigericin-triggered pyroptosis of human THP-1 cells in a time- and concentration-dependent manner. Moreover, 9 and other structurally related compounds, inhibited caspase-1 and NLRP3 ATPase activities. Our findings can contribute to the development of covalent, multitarget antipyroptotic compounds targeting molecular components of the NLRP3 inflammasome regulatory pathway.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Cocco M,Garella D,Di Stilo A,Borretto E,Stevanato L,Giorgis M,Marini E,Fantozzi R,Miglio G,Bertinaria Mdoi
10.1021/jm501072bsubject
Has Abstractpub_date
2014-12-26 00:00:00pages
10366-82issue
24eissn
0022-2623issn
1520-4804journal_volume
57pub_type
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