通心络对巨噬细胞极化的影响

摘要

Aim To study the effect of Tongxinluo on the polarization of macrophages to type M2 and M1, and on Notch signaling pathway.Methods THP-1 was respectively induced by PMA and IL-4 or LPS to M2 and M1 type polarized macrophages, and treated by Tongxinluo.The expressions of marker molecules IL-10, TNF-α, IL-6 and protein of Notch signaling pathway were detected.Results The level of IL-10 increased in M2 group and there was no statistical difference on the level of IL-6 and TNF-α;the level of IL-10 decreased and IL-6, TNF-α increased in M1 group;the level of IL-10 increased and IL-6,TNF-α decreased in TXL group.There was no statistical difference in the expression of active Notch-1, DLL4 and Hes-1 between control group and M2 group;the expression of active Notch-1, DLL4 and HES-1 increased significantly in M1 group;the expression of active Notch-1, DLL4 and HES-1 decreased significantly in TXL group;there was no significant difference in the expression of Notch-1 protein in each group.Conclusion The polarization of macrophages to M1 type can be inhibited by Tongxinluo, and its mechanism may be related to the inhibition of activation of Notch-1 signaling pathway.%目的 研究通心络对巨噬细胞向M2、M1型极化的影响及其对Notch信号通路的作用.方法 采用PMA分别联合IL-4、LPS诱导THP-1细胞分别向M2、M1型巨噬细胞极化并给予通心络进行干预,检测其标志分子IL-10、TNF-α、IL-6的表达及巨噬细胞极化相关Notch信号通路蛋白的表达.结果 M2组细胞培养上清中IL-10水平升高,IL-6、TNF-α的水平差异无统计学意义;M1组细胞培养上清中IL-10水平明显降低,IL-6、TNF-α水平明显升高;通心络组细胞培养上清中IL-10水平升高,IL-6、TNF-α水平下降.M2组白表达明显升高，通心络组细胞active Notch-1、DLL4、Hes-1蛋白表达明显降低,各组Notch-1蛋白表达差异无统计学意义.结论 通心络可抑制巨噬细胞向M1型极化,其机制可能与抑制Notch-1信号通路活化有关.