他克莫司对全血细胞因子分泌的影响

目的研究免疫抑制剂他克莫司(Tacrolimus,FK506)在体外对全血细胞因子分泌的影响。方法健康志愿者全血加入不同浓度FK506,经佛波酯(PMA)和离子霉素(IONO)刺激后,用Bio-Plex悬浮蛋白芯片系统检测上清中细胞因子IL-2、IL-6、IL-12、IL-17、IFN-γ、TNF-α、GM-CSF以及G-CSF的水平。结果同对照组相比,高浓度组FK506(20ng/ml)能显著抑制IL-2、IL-6、IL-12、IL-17、IFN-γ、TNF-α、GM-CSF和G-SCF的分泌(P<0.05);中浓度组FK506(5ng/ml)能有效抑制GM-CSF的分泌,两组之间的差异有显著性(P<0.05)。结论FK506对全血细胞促炎症细胞因子IL-6,IFN-γ和TNF-α的分泌有较强的抑制作用,同时对IL-2,IL-12,IL-17以及集落刺激因子因子GM-CSF,G-CSF也有明显抑制作用。因此FK506发挥免疫抑制功能可能通过抑制免疫细胞分泌各类细胞因子来实现。同时,由于FK506与细胞因子的分泌有剂量依赖关系,有望可以通过FK506浓度水平与细胞因子的抑制水平的依赖关系来评估临床病人FK50...

Effect of FK506 on cytokine secretion in whole blood

Objective To investigate the effect of FKS06 on cytokine secretions in whole blood from healthy individuals.Methods Blood samples collected from healthy volunteers were co-cultured with different concentrations of FK506 and stimulated with PMA and IONO. The concentrations of 8 cytokines including IL-2, IL-6, IL-12, IL-17, IFN-γ, TNF-α,GM-CSF and G-CSF were detected by Bio-Plex suspension system. Results Compared with the control group,high-concentration FK506 (20 ng/ml) significantly inhibited the secretions of IL-2, IL-6, IL-12, IL-17, IFN-γ,TNF-α,GM-CSF and G-CSF. At a moderate concentration (5 ng/ml), FK506 inhibited the secretion of GM-CSF significantly.Conclusion FK506 effectively inhibits the secretion of proinflammatory cytoldnes including IL-6, IF-γ and TNF-α and also the secretion Of IL-2, IL-12, IL-17, GM-CSF and G-CSF. FK506 might play the role of immunosuppression by inhibiting the production of these cytokines by the immune cells. Monitoring the levels of these cytokines might be a potential method for evaluating the adequacy of FK506 doses administered.