PMID- 35890124 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220731 IS - 1424-8247 (Print) IS - 1424-8247 (Electronic) IS - 1424-8247 (Linking) VI - 15 IP - 7 DP - 2022 Jul 2 TI - Dehydroisohispanolone as a Promising NLRP3 Inhibitor Agent: Bioevaluation and Molecular Docking. LID - 10.3390/ph15070825 [doi] LID - 825 AB - Dehydroisohispanolone (DIH), is a labdane diterpene that has exhibited anti-inflammatory activity via inhibition of NF-kappaB activation, although its potential effects on inflammasome activation remain unexplored. This study aims to elucidate whether DIH modulates NLR family pyrin domain-containing protein 3 (NLRP3) inflammasome in macrophages. Our findings show that DIH inhibited NLRP3 activation triggered by Nigericin (Nig), adenosine triphosphate (ATP) and monosodium urate (MSU) crystals, indicating broad inhibitory effects. DIH significantly attenuated caspase-1 activation and secretion of the interleukin-1beta (IL-1beta) in J774A.1 cells. Interestingly, the protein expressions of NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC), pro-caspase-1 and pro-IL-1beta were not affected by DIH treatment. Furthermore, we found that DIH pretreatment also inhibited the lipopolysaccharide (LPS)-induced NLRP3 inflammasome priming stage. In addition, DIH alleviated pyroptosis mediated by NLRP3 inflammasome activation. Similar results on IL-1beta release were observed in Nig-activated bone marrow-derived macrophages (BMDMs). Covalent molecular docking analysis revealed that DIH fits well into the ATP-binding site of NLRP3 protein, forming a covalent bond with Cys415. In conclusion, our experiments show that DIH is an effective NLRP3 inflammasome inhibitor and provide new evidence for its application in the therapy of inflammation-related diseases. FAU - Gonzalez-Cofrade, Laura AU - Gonzalez-Cofrade L AD - Departamento de Farmacologia, Farmacognosia y Botanica, Facultad de Farmacia, Universidad Complutense de Madrid (UCM), Plaza Ramon y Cajal s/n, 28040 Madrid, Spain. FAU - Cuadrado, Irene AU - Cuadrado I AD - Departamento de Farmacologia, Farmacognosia y Botanica, Facultad de Farmacia, Universidad Complutense de Madrid (UCM), Plaza Ramon y Cajal s/n, 28040 Madrid, Spain. FAU - Amesty, Angel AU - Amesty A AD - Departamento de Quimica Organica, Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda, Astrofisico Francisco Sanchez 2, 38206 La Laguna, Tenerife, Spain. FAU - Estevez-Braun, Ana AU - Estevez-Braun A AUID- ORCID: 0000-0001-5279-7099 AD - Departamento de Quimica Organica, Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda, Astrofisico Francisco Sanchez 2, 38206 La Laguna, Tenerife, Spain. FAU - de Las Heras, Beatriz AU - de Las Heras B AD - Departamento de Farmacologia, Farmacognosia y Botanica, Facultad de Farmacia, Universidad Complutense de Madrid (UCM), Plaza Ramon y Cajal s/n, 28040 Madrid, Spain. FAU - Hortelano, Sonsoles AU - Hortelano S AUID- ORCID: 0000-0003-2528-0072 AD - Unidad de Terapias Farmacologicas, Area de Genetica Humana, Instituto de Investigacion de Enfermedades Raras (IIER), Instituto de Salud Carlos III, Carretera de Majadahonda-Pozuelo Km 2, 28220 Madrid, Spain. LA - eng GR - PI17CIII/00012/Instituto de Salud Carlos III/ GR - PI20CIII/00018/Instituto de Salud Carlos III/ GR - RTI2018-094356-B-C21/Ministerio de Ciencia, Innovacion y Universidades (MICIU)/ GR - Pro ID 2021010037/Agencia Canaria de Investigacion, Innovacion y Sociedad de la Informacion/ GR - FPU17/03519/Ministerio de Educacion Cultura y Deporte/ PT - Journal Article DEP - 20220702 PL - Switzerland TA - Pharmaceuticals (Basel) JT - Pharmaceuticals (Basel, Switzerland) JID - 101238453 PMC - PMC9316970 OTO - NOTNLM OT - NLRP3 inflammasome OT - caspase-1 OT - dehydroisohispanolone OT - diterpene OT - interleukin-1beta OT - pyroptosis COIS- The authors declare no conflict of interest. EDAT- 2022/07/28 06:00 MHDA- 2022/07/28 06:01 PMCR- 2022/07/02 CRDT- 2022/07/27 01:38 PHST- 2022/06/01 00:00 [received] PHST- 2022/06/27 00:00 [revised] PHST- 2022/06/28 00:00 [accepted] PHST- 2022/07/27 01:38 [entrez] PHST- 2022/07/28 06:00 [pubmed] PHST- 2022/07/28 06:01 [medline] PHST- 2022/07/02 00:00 [pmc-release] AID - ph15070825 [pii] AID - pharmaceuticals-15-00825 [pii] AID - 10.3390/ph15070825 [doi] PST - epublish SO - Pharmaceuticals (Basel). 2022 Jul 2;15(7):825. doi: 10.3390/ph15070825.