Saih Fatima-Ezzahra, Andreoletti Pierre, Mandard Stéphane, Latruffe Norbert, El Kebbaj M'Hammed Saïd, Lizard Gérard, Nasser Boubker, Cherkaoui-Malki Mustapha
Laboratoire BioPeroxIL, Biochimie du Peroxysome, Inflammation et Métabolisme Lipidique, EA 7270, Unité de Formation et de Recherche des Sciences Vie, Terre et Environnement, 21000 Dijon, France.
Laboratoire BioPeroxIL, Université Bourgogne-Franche Comté, 6 Bd Gabriel, 21000 Dijon, France.
Molecules. 2017 Jan 7;22(1):102. doi: 10.3390/molecules22010102.
In this study, we aimed to evaluate the antioxidant and anti-inflammatory properties of cactus cladode extracts in microglia BV-2 cells. Inflammation associated with microglia activation in neuronal injury can be achieved by LPS exposure. Using four different structurally and biologically well-characterized LPS serotypes, we revealed a structure-related differential effect of LPS on fatty acid β-oxidation and antioxidant enzymes in peroxisomes: -LPS decreased ACOX1 activity while -LPS reduced only catalase activity. Different cactus cladode extracts showed an antioxidant effect through microglial catalase activity activation and an anti-inflammatory effect by reducing nitric oxide (NO) LPS-dependent production. These results suggest that cactus extracts may possess a neuroprotective activity through the induction of peroxisomal antioxidant activity and the inhibition of NO production by activated microglial cells.
在本研究中,我们旨在评估仙人掌茎提取物对小胶质细胞BV-2的抗氧化和抗炎特性。神经元损伤中与小胶质细胞活化相关的炎症可通过暴露于脂多糖(LPS)来实现。使用四种结构和生物学特性明确的不同LPS血清型,我们揭示了LPS对过氧化物酶体中脂肪酸β-氧化和抗氧化酶的结构相关差异效应:A型LPS降低了酰基辅酶A氧化酶1(ACOX1)的活性,而B型LPS仅降低了过氧化氢酶的活性。不同的仙人掌茎提取物通过激活小胶质细胞的过氧化氢酶活性显示出抗氧化作用,并通过减少LPS依赖性一氧化氮(NO)的产生发挥抗炎作用。这些结果表明,仙人掌提取物可能通过诱导过氧化物酶体抗氧化活性和抑制活化小胶质细胞产生NO而具有神经保护活性。