PMID- 30319413 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1663-9812 (Print) IS - 1663-9812 (Electronic) IS - 1663-9812 (Linking) VI - 9 DP - 2018 TI - Budlein A, a Sesquiterpene Lactone From Viguiera robusta, Alleviates Pain and Inflammation in a Model of Acute Gout Arthritis in Mice. PG - 1076 LID - 10.3389/fphar.2018.01076 [doi] LID - 1076 AB - Background: Gout is the most common inflammatory arthritis worldwide. It is a painful inflammatory disease induced by the deposition of monosodium urate (MSU) crystals in the joints and peri-articular tissues. Sesquiterpene lactones (SLs) are secondary metabolite biosynthesized mainly by species from the family Asteraceae. It has been demonstrated that SLs present anti-inflammatory, analgesic, antitumoral, antiparasitic, and antimicrobial activities. In this study, we aimed at evaluating the efficacy of the SL budlein A in a model of acute gout arthritis in mice. Methods: Experiments were conducted in male Swiss or male LysM-eGFP mice. Animals were treated with budlein A (1 or 10 mg/kg) or vehicle 30 min before stimulus with MSU (100 mug/10 muL, intra-articular). Knee joint withdrawal threshold and edema were evaluated using electronic von Frey and caliper, respectively, 1-15 h after MSU injection. Leukocyte recruitment was determined by counting cells (Neubauer chamber), H&E staining, and using LysM-eGFP mice by confocal microscopy. Inflammasome components, Il-1beta, and Tnf-alpha mRNA expression were determined by RT-qPCR. IL-1beta and TNF-alpha production (in vitro) and NF-kappaB activation (in vitro and in vivo) were evaluated by ELISA. In vitro analysis using LPS-primed bone marrow-derived macrophages (BMDMs) was performed 5 h after stimulation with MSU crystals. For these experiments, BMDMs were either treated or pre-treated with budlein A at concentrations of 1, 3, or 10 mug/mL. Results: We demonstrated that budlein A reduced mechanical hypersensitivity and knee joint edema. Moreover, it reduced neutrophil recruitment, phagocytosis of MSU crystals by neutrophils, and Il-1beta and Tnf-alpha mRNA expression in the knee joint. In vitro, budlein A decreased TNF-alpha production, which might be related to the inhibition of NF-kappaB activation. Furthermore, budlein A also reduced the IL-1beta maturation, possibly by targeting inflammasome assembly in macrophages. Conclusion: Budlein A reduced pain and inflammation in a model of acute gout arthritis in mice. Therefore, it is likely that molecules with the ability of targeting NF-kappaB activation and inflammasome assembly, such as budlein A, are interesting approaches to treat gout flares. FAU - Fattori, Victor AU - Fattori V AD - Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil. FAU - Zarpelon, Ana C AU - Zarpelon AC AD - Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil. FAU - Staurengo-Ferrari, Larissa AU - Staurengo-Ferrari L AD - Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil. FAU - Borghi, Sergio M AU - Borghi SM AD - Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil. FAU - Zaninelli, Tiago H AU - Zaninelli TH AD - Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil. FAU - Da Costa, Fernando B AU - Da Costa FB AD - AsterBioChem Research Team, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brazil. FAU - Alves-Filho, Jose C AU - Alves-Filho JC AD - Laboratory of Inflammation and Pain, Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil. FAU - Cunha, Thiago M AU - Cunha TM AD - Laboratory of Inflammation and Pain, Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil. FAU - Cunha, Fernando Q AU - Cunha FQ AD - Laboratory of Inflammation and Pain, Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil. FAU - Casagrande, Rubia AU - Casagrande R AD - Department of Pharmaceutical Sciences, Center of Health Sciences, Londrina State University, Londrina, Brazil. FAU - Arakawa, Nilton S AU - Arakawa NS AD - Department of Pharmaceutical Sciences, Center of Health Sciences, Londrina State University, Londrina, Brazil. FAU - Verri, Waldiceu A Jr AU - Verri WA Jr AD - Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil. LA - eng PT - Journal Article DEP - 20180925 PL - Switzerland TA - Front Pharmacol JT - Frontiers in pharmacology JID - 101548923 PMC - PMC6167909 OTO - NOTNLM OT - NLRP3 inflammasome OT - analgesia OT - experimental arthritis OT - gout treatment OT - joint pain OT - knee pain OT - rheumatic disease OT - sesquiterpene lactones EDAT- 2018/10/16 06:00 MHDA- 2018/10/16 06:01 PMCR- 2018/09/25 CRDT- 2018/10/16 06:00 PHST- 2018/06/16 00:00 [received] PHST- 2018/09/05 00:00 [accepted] PHST- 2018/10/16 06:00 [entrez] PHST- 2018/10/16 06:00 [pubmed] PHST- 2018/10/16 06:01 [medline] PHST- 2018/09/25 00:00 [pmc-release] AID - 10.3389/fphar.2018.01076 [doi] PST - epublish SO - Front Pharmacol. 2018 Sep 25;9:1076. doi: 10.3389/fphar.2018.01076. eCollection 2018.