新型苯并噁唑酮类衍生物4-邻甲基苯磺酰氧基-苯并噁唑酮(MBB)抗炎作用的研究
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摘要
目的:研究新型苯并噁唑酮衍生物4-邻甲基苯磺酰氧基-苯并噁唑酮(MBB)的抗炎作用,并初步探讨其抗炎作用机制。方法:采用二甲苯致小鼠耳肿胀和角叉菜胶致大鼠足跖肿胀炎症模型观察MBB的体内抗炎作用;采用脂多糖(LPS)诱导的小鼠单核巨噬细胞(RAW264.7)炎症模型观察MBB体外抗炎作用,Griess法测定细胞培养液中NO的释放量,ELISA法测定细胞培养液中TNF-α、IL-6和IL-1β的含量。结果:MBB对二甲苯所致的小鼠耳肿胀和角叉菜胶致大鼠足跖肿胀有明显的抑制作用;MBB对LPS诱导的RAW264.7细胞培养液中炎症因子NO、TNF-α、IL-6和IL-1β的分泌有显著的抑制作用,并呈现一定的量效关系。结论:MBB可以通过抑制NO的释放和TNF-α、IL-6、IL-1β的表达发挥抗炎作用。
OBJECTIVE To study the anti-inflammatory effects of 4-(2-methylphenylsulfonyloxy)-2(3H)-benzoxazolone(MBB).METHODS The anti-inflammatory effects in vivo were investigated using xylene-induced mouse ear swelling and carrageenan-induced rat paw edema models.Meanwhile,the contents of NO,TNF-α,IL-6 and IL-ip in LPS-induced RAW264.7 cell supernatant were detected by Griess and ELISA methods to evaluate the anti-inflammatory activity in vitro.RESULTS MBB could markedly suppress the ear swelling and the paw edema in vivo.The levels of NO,TNF-α,IL-6 and IL-ip on LPS-induced RAW264.7 cells were significantly reduced after treated with MBB,and presented dose-effect relationships.CONCLUSION MBB presented determined anti-inflammation activity through inhibiting the secretion of NO,TNF-α,EL-6 and IL-1β.
引文
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