作者:Chih-Hua Tseng、Chih-Mei Cheng、Cherng-Chyi Tzeng、Shin-I Peng、Chiao-Li Yang、Yeh-Long Chen
DOI:10.1016/j.bmc.2012.10.047
日期:2013.1
β-Lapachone (β-LAPA), a natural product from the lapacho tree in South America, is a potential chemotherapeutic agent that exhibit a wide variety of pharmacological effects such as anti-virus, anti-parasitic, anti-cancer, and anti-inflammatory activities. In order to discover novel anti-inflammatory agents, we have synthesized a series of β-LAPA derivatives for evaluation. Among them, 4-(4-methoxy
β-Lapachone (β-LAPA) 是一种来自南美洲拉帕乔树的天然产物,是一种潜在的化学治疗剂,具有多种药理作用,如抗病毒、抗寄生虫、抗癌和抗肿瘤。炎症活动。为了发现新的抗炎剂,我们合成了一系列β-LAPA衍生物进行评估。其中,4-(4-methoxyphenoxy)naphthalene-1,2-dione ( 6b )被发现能够抑制LPS诱导的Raw 264.7细胞中NO和TNF-α的释放。在化合物6b处理的细胞中也观察到 iNOS 和 COX-2 的抑制作用。机制研究表明,6b通过下调 NF-κB 活化来抑制促炎因子的释放,从而表现出抗炎特性。此外,它通过抑制 p38 激酶的磷酸化来抑制 NF-κB 易位。我们的结果还表明,6b对 Raw 264.7 细胞中 LPS 刺激的炎症介质产生的抑制作用与 NF-κB 和 MAPK 信号通路的抑制有关。化合物6b的低细胞毒性 (IC 50