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Discovery of pterostilbene analogs as novel NLRP3 inflammasome inhibitors for potential treatment of DSS-induced colitis in mice.
- Source :
-
Bioorganic Chemistry . Apr2023, Vol. 133, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
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Abstract
- [Display omitted] • Novel pterostilbene analogs compounds were synthesized. • Compound D22 inhibits inflammatory factor IL-1β secretes by targeting NLRP3 protein and shows high anti-inflammatory activity. • In vivo experiments showed that D22 had a good therapeutic effect on DSS-induced acute colitis in mice. The pterostilbene skeleton is a promising chemical scaffold that exerts anti-inflammatory, anti-depressant, and anti-tumor effects. In this study, we aim to reduce in vivo and in vitro toxicity of compound 32 (preliminary work) and maintain its biological activity. A series of novel pterostilbene derivatives (D1 - D43) were designed and synthesized, and their anti-inflammatory activities were screened. All compounds were screened to evaluate their inhibitory effect on LPS/Nigericin-induced IL-1β production and pyroptosis. The structure–activity relationships was deduced, and finally 1-((E)-4-(2-ethoxyethoxy)styryl)-3,5-dimethoxy-2-((E)-2-nitrovinyl)benzene (D22) was found to be a low-toxic compound with most potent inhibitory efficacy (against IL-1β: IC 50 = 2.41 μM). Preliminary mechanism studies showed that compound D22 may affect the assembly of NLRP3 inflammasome by targeting NLRP3 protein, thereby inhibiting the activation of NLRP3 inflammasome. The in vivo anti-inflammatory activity indicated that compound D22 had significant therapeutic effects on DSS-induced mouse acute colitis models. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00452068
- Volume :
- 133
- Database :
- Academic Search Index
- Journal :
- Bioorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 162391966
- Full Text :
- https://doi.org/10.1016/j.bioorg.2023.106429