Department of Anatomy, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
Huzhou University, Huzhou 313000, China.
Life Sci. 2019 Sep 15;233:116740. doi: 10.1016/j.lfs.2019.116740. Epub 2019 Aug 6.
Although intravenous injection is the most convenient and feasible approach for mesenchymal stem cells (MSCs) delivery, the proportion of donor stem cells in the target myocardium after transplantation is small. It is believed that TCM enhances the effect of stem cell therapy by improving the hostile microenvironment and promoting the migration and survival of stem cells. Guanxin Danshen (GXDS) formulation is one of the main prescriptions for clinical treatment of ischemic heart diseases in China. The purpose of this study was to evaluate the effects of GXDS formulation administration combined with MSCs transplantation on cardiac function improvement, apoptosis, angiogenesis and survival of transplanted cells in an acute model of acute myocardial infarction (MI). After being labeled with GFP, MSCs were transplanted via intravenous injection. Meanwhile, GXDS dripping pills were given by intragastric administration for 4 weeks from 2 days before MI. Echocardiography showed moderate improvement in cardiac function after administration of GXDS formulation or intravenous transplantation of MSCs. However, GXDS formulation combined with MSCs transplantation significantly improved cardiac function after MI. The myocardial infarct size in rats treated with MSCs was similar to that in rats treated with GXDS formulation. However, GXDS formulation combined with MSCs transplantation significantly reduced infarction area. In addition, GXDS formulation combined with MSCs transplantation not only decreased cell apoptosis according to the TUNEL staining, but also enhanced angiogenesis in the peri-infarction and infarction area. Interestingly, the use of GXDS formulation increased the number of injected MSCs in the infarct area. Furthermore, GXDS formulation combined with MSCs transplantation increased SDF-1 levels in the infarcted area, but did not affect the expression of YAP. Our study provided a more feasible and accessible strategy to enhance the migration of stem cells after intravenous injection by oral administration of GXDS formulation. The combination of GXDS formulation and stem cell therapy has practical significance and application prospects in the treatment of ischemic cardiomyopathy such as MI.
虽然静脉注射是最方便和可行的间充质干细胞(MSCs)输送方法,但移植后供体干细胞在靶心肌中的比例较小。人们认为,中药通过改善恶劣的微环境和促进干细胞的迁移和存活来增强干细胞治疗的效果。冠心丹参(GXDS)配方是中国临床治疗缺血性心脏病的主要方剂之一。本研究旨在评估 GXDS 配方给药联合 MSCs 移植对急性心肌梗死(MI)模型中心脏功能改善、细胞凋亡、血管生成和移植细胞存活的影响。将 MSCs 标记为 GFP 后,通过静脉注射进行移植。同时,在 MI 前 2 天开始,通过胃内给药给予 GXDS 滴丸 4 周。超声心动图显示,给予 GXDS 配方或静脉内移植 MSCs 后心脏功能有中度改善。然而,与 GXDS 配方或 MSCs 移植治疗相比,联合治疗可显著改善 MI 后心脏功能。用 MSCs 治疗的大鼠心肌梗死面积与用 GXDS 配方治疗的大鼠相似。然而,联合 GXDS 配方和 MSCs 移植可显著减少梗死面积。此外,与单独使用 GXDS 配方或 MSCs 移植相比,联合 GXDS 配方和 MSCs 移植不仅减少了 TUNEL 染色的细胞凋亡,而且增强了梗死区和梗死周围的血管生成。有趣的是,使用 GXDS 配方增加了注射到梗死区的 MSCs 数量。此外,联合 GXDS 配方和 MSCs 移植增加了梗死区 SDF-1 水平,但不影响 YAP 的表达。我们的研究提供了一种更可行和易获得的策略,通过口服 GXDS 配方增强静脉注射后干细胞的迁移。在治疗 MI 等缺血性心肌病方面,GXDS 配方与干细胞治疗的结合具有实际意义和应用前景。
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