The apoptosis of mouse macrophage J774A. 1 induced by oxysterol depend on NF-κB activation / 细胞与分子免疫学杂志

AIM: Investigated the relationship between NF-κB activation and cell apoptosis in mouse macrophages treated with 7-ketochesterol (7-KC). METHODS: Cell apoptosis was detected by MTT assay, DNA fragmentation assay and flow cytometric analysis. NF-κB activation was detected by western blot and immunohistochemistry. Inhibitory assay was used to show the effect of the activation of NF-κB on the apoptosis induced by 7-KC. RESULTS: 7-KC inhibited macrophages proliferation, and then induced apoptosis, which is associated with NF-κB activation. Moreover, cell apoptosis with NF-κB activation was inhibited by pyrrolidine dithiocarbamate (PDTC), an inhibitor of NF-κB. CONCLUSION: 7-KC induced the activation of NF-κB and following cell apoptosis.