Synthesis and evaluation of 1,2,4-oxadiazole derivatives as potential anti-inflammatory agents by inhibiting NF-κB signaling pathway in LPS-stimulated RAW 264.7 cells
作者:Yu-Ying Zhang、Qian-Qian Zhang、Juan Zhang、Jia-Li Song、Jia-Cheng Li、Ke Han、Jin-Tian Huang、Cheng-Shi Jiang、Hua Zhang
DOI:10.1016/j.bmcl.2020.127373
日期:2020.9
In this study, a series of compounds with 1,2,4-oxadiazole core was designed and synthesized for the optimi-zation of JC01, an anti-inflammatory hit identified from our in-house compound library using NF-xB pathway luciferase assay and NO production assay. All the synthetic compounds 1-29 have been screened for their anti-inflammatory effects by evaluating their inhibition against LPS-induced NO release, and compound 17 exhibited the highest activity. Western blotting and immunofluorescence analysis revealed that 17 prominently inhibited LPS-induced activation of NF-kappa B in RAW264.7 cells and blocked the phosphorylation of p65. Consistent with these results, it was found that 17 prevented the nuclear translocation of NF-kappa B induced by LPS. These data highlighted 17 as a promising anti-inflammatory agent by inhibiting NF-kappa B activity.