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Protective Effects of Medicinal Plant Decoctions on Macrophages in the Context of Atherosclerosis.
Checkouri, Eloïse; Ramin-Mangata, Stéphane; Diotel, Nicolas; Viranaicken, Wildriss; Marodon, Claude; Reignier, Franck; Robert-Da Silva, Christine; Meilhac, Olivier.
Afiliación
  • Checkouri E; Université de La Réunion, INSERM, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), 97490 Sainte-Clotilde, La Réunion, France.
  • Ramin-Mangata S; Habemus Papam, Food Industry, 97470 Saint-Benoit, La Réunion, France.
  • Diotel N; Université de La Réunion, INSERM, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), 97490 Sainte-Clotilde, La Réunion, France.
  • Viranaicken W; Université de La Réunion, INSERM, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), 97490 Sainte-Clotilde, La Réunion, France.
  • Marodon C; Université de La Réunion, UMR Processus Infectieux en Milieu Insulaire Tropical (PIMIT) INSERM 1187, CNRS 9192, 97490 Sainte-Clotilde, La Réunion, France.
  • Reignier F; APLAMEDOM Réunion, 1, rue Emile Hugot, Batiment B, Parc Technologique de Saint Denis, 97490 Sainte Clotilde, La Réunion, France.
  • Robert-Da Silva C; Habemus Papam, Food Industry, 97470 Saint-Benoit, La Réunion, France.
  • Meilhac O; Université de La Réunion, INSERM, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), 97490 Sainte-Clotilde, La Réunion, France.
Nutrients ; 13(1)2021 Jan 19.
Article en En | MEDLINE | ID: mdl-33478034
Atherosclerosis is a hallmark of most cardiovascular diseases. The implication of macrophages in this pathology is widely documented, notably for their contribution to lipid accumulation within the arterial wall, associated with oxidative stress and inflammation processes. In order to prevent or limit the atherosclerosis damage, nutritional approaches and medicinal plant-based therapies need to be considered. In Reunion Island, medicinal plant-based beverages are traditionally used for their antioxidant, lipid-lowering and anti-inflammatory properties. The aim of our study was to assess the protective effects of eight medicinal plant decoctions in an in vitro model of RAW 264.7 murine macrophages exposed to pro-atherogenic conditions (oxidized low-density lipoproteins-ox-LDL-E. coli Lipopolysaccharides-LPS). The impact of polyphenol-rich medicinal plant decoctions on cell viability was evaluated by Neutral Red assay. Fluorescent ox-LDL uptake was assessed by flow cytometry and confocal microscopy. Activation of NF-κB was evaluated by quantification of secreted alkaline phosphatase in RAW-Blue™ macrophages. Our results show that medicinal plant decoctions limited the cytotoxicity induced by ox-LDL on macrophages. Flow cytometry analysis in macrophages demonstrated that medicinal plant decoctions from S. cumini and P. mauritianum decreased ox-LDL uptake and accumulation by more than 70%. In addition, medicinal plant decoctions also inhibited NF-κB pathway activation in the presence of pro-inflammatory concentrations of E. coli LPS. Our data suggest that medicinal plant decoctions exert protective effects on ox-LDL-induced cytotoxicity and limited macrophage lipid uptake. Moreover, herbal preparations displayed anti-inflammatory properties on macrophages that can be of interest for limiting the atherosclerotic process.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plantas Medicinales / Extractos Vegetales / Aterosclerosis / Macrófagos Tipo de estudio: Prognostic_studies Límite: Animals / Humans Idioma: En Revista: Nutrients Año: 2021 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Suiza
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plantas Medicinales / Extractos Vegetales / Aterosclerosis / Macrófagos Tipo de estudio: Prognostic_studies Límite: Animals / Humans Idioma: En Revista: Nutrients Año: 2021 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Suiza