PMID- 35697364 OWN - NLM STAT- MEDLINE DCOM- 20221115 LR - 20221115 IS - 1472-8206 (Electronic) IS - 0767-3981 (Linking) VI - 36 IP - 6 DP - 2022 Dec TI - Evidence that the anti-inflammatory effect of 4-aryl-4H-chromenes is linked to macrophage repolarization. PG - 1020-1030 LID - 10.1111/fcp.12809 [doi] AB - The inflammatory response is a common feature of many pathological conditions, and there is urgent necessity for new substances that minimize the harmful effects of inflammation. Chromenes represent a class of compounds with multiple pharmacological actions that have already been described and may be potential candidates for studies of therapeutic action. This study aimed to test novel 4-aryl-4H-chromene-derived molecules in an in vitro model of inflammation using lipopolysaccharide (LPS)-induced Raw 264.7 cells. Seven compounds derived from 4-aryl-4H-chromene were tested on Raw 264.7 cells to evaluate their cytotoxic effects. Next, the effect of the selected compounds on the pro-inflammatory mediators (tumor necrosis factor-alpha [TNF-alpha], monocyte chemoattractant protein-1 [MCP-1], interleukin [IL]-6) and on the anti-inflammatory mediators (IL-10 and IL-13) was analyzed, and finally, the effect of the compounds on macrophage apoptosis and expression of surface receptors (toll-like receptor 4 [TLR-4] and mannose) was evaluated. The results of this study demonstrated that changes in the molecular structure of 4-aryl-4H-chromene altered its cytotoxic profile. Therefore, derivatives that showed safe results were selected for further analyses (named compounds: 4-6). In these experiments, the compounds were able to decrease nitric oxide (NO) levels and production of MCP-1, IL-6, IL-10, and IL-13. Furthermore, these derivatives were effective in reducing macrophage apoptosis and the expression of surface receptors, as TLR-4/CD284. Moreover, compounds 5 and 6 also were effective in increasing mannose receptor (CD206) expression. The results indicate, for the first time to our knowledge, that the anti-inflammatory effect produced by chromenes is linked to macrophage repolarization (M1 to M2). CI - (c) 2022 Societe Francaise de Pharmacologie et de Therapeutique. Published by John Wiley & Sons Ltd. FAU - Dos Reis, Gustavo O AU - Dos Reis GO AD - Postgraduation Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, Brazil. FAU - da Rosa, Julia S AU - da Rosa JS AD - Postgraduation Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, Brazil. FAU - Lubschinksi, Taina L AU - Lubschinksi TL AD - Postgraduation Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, Brazil. FAU - Martin, Erlon F AU - Martin EF AUID- ORCID: 0000-0002-7844-0757 AD - Postgraduation Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, Brazil. FAU - Sandjo, Louis P AU - Sandjo LP AD - Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil. FAU - Dalmarco, Eduardo M AU - Dalmarco EM AUID- ORCID: 0000-0002-5220-5396 AD - Postgraduation Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, Brazil. AD - Department of Clinical Analysis, Centre of Health Sciences, Federal University of Santa Catarina, University Campus, Trindade, Florianopolis, Santa Catarina, Brazil. LA - eng PT - Journal Article DEP - 20220617 PL - England TA - Fundam Clin Pharmacol JT - Fundamental & clinical pharmacology JID - 8710411 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Benzopyrans) RN - 130068-27-8 (Interleukin-10) RN - 0 (Interleukin-13) RN - 0 (Interleukin-6) RN - 0 (Lipopolysaccharides) RN - 0 (Toll-Like Receptor 4) SB - IM MH - *Anti-Inflammatory Agents/pharmacology MH - *Benzopyrans/pharmacology MH - Inflammation/metabolism MH - Interleukin-10/metabolism MH - Interleukin-13/metabolism MH - Interleukin-6/metabolism MH - Lipopolysaccharides MH - *Macrophages/drug effects MH - Toll-Like Receptor 4 MH - Animals MH - Mice MH - RAW 264.7 Cells OTO - NOTNLM OT - LPS OT - Raw 264.7 OT - chromenes OT - inflammation OT - macrophage polarization EDAT- 2022/06/14 06:00 MHDA- 2022/11/15 06:00 CRDT- 2022/06/13 20:43 PHST- 2022/03/15 00:00 [received] PHST- 2022/06/10 00:00 [accepted] PHST- 2022/06/14 06:00 [pubmed] PHST- 2022/11/15 06:00 [medline] PHST- 2022/06/13 20:43 [entrez] AID - 10.1111/fcp.12809 [doi] PST - ppublish SO - Fundam Clin Pharmacol. 2022 Dec;36(6):1020-1030. doi: 10.1111/fcp.12809. Epub 2022 Jun 17.