Department of Physiology, Zhejiang Chinese Medical University, Zhejiang, China.
Stem Cells Dev. 2019 Jul 1;28(13):871-881. doi: 10.1089/scd.2018.0254. Epub 2019 Jun 13.
Bone marrow-derived mesenchymal stem cells (BMSCs) hold great promise for treating ischemic stroke owing to their capacity to secrete various trophic factors with potent angiogenic and neurogenic potentials. However, the relatively poor migratory capacity of BMSCs toward infarcted regions limits effective therapies for the treatment of stroke. The combination of BMSCs and pharmacological agent can promote the migration of BMSCs toward infarcted regions and improve the therapeutic effects after stroke. In this study, we aimed to investigate whether BMSCs combined with tetramethylpyrazine (TMP) enhanced BMSC migration into the ischemic brain, which had better therapeutic effect in the treatment of stroke. In a rat stroke model, we found that combination treatment significantly upregulated ischemic brain stromal-derived factor-1 (SDF-1) and CXC chemokine receptor 4 (CXCR4) expressions, and promoted BMSCs homing toward the ischemic regions than BMSC monotherapy. Moreover, BMSCs combined with TMP synergistically increased the expression of vascular endothelial growth factor and brain-derived neurotrophic factor, promoted angiogenesis and neurogenesis, and improved functional outcome after stroke. These results suggest that combination treatment could not only enhance the migration of BMSCs into the ischemic brain but also act in a synergistic way to potentiate endogenous repair processes and functional recovery after ischemic stroke.
骨髓间充质干细胞(BMSCs)由于能够分泌具有强大血管生成和神经生成潜力的各种营养因子,因此在治疗缺血性中风方面具有巨大的潜力。然而,BMSCs 向梗死区域的迁移能力相对较差,限制了中风治疗的有效疗法。BMSCs 与药物联合使用可以促进 BMSCs 向梗死区域迁移,并改善中风后的治疗效果。在本研究中,我们旨在研究 BMSCs 与川芎嗪(TMP)联合使用是否增强了 BMSC 向缺血性大脑的迁移,从而在中风治疗中具有更好的治疗效果。在大鼠中风模型中,我们发现联合治疗显著上调了缺血性大脑基质衍生因子-1(SDF-1)和 CXC 趋化因子受体 4(CXCR4)的表达,并促进了 BMSC 向缺血区域归巢,优于 BMSC 单药治疗。此外,BMSCs 与 TMP 联合使用可协同增加血管内皮生长因子和脑源性神经营养因子的表达,促进血管生成和神经发生,并改善中风后的功能恢复。这些结果表明,联合治疗不仅可以增强 BMSCs 向缺血性大脑的迁移,而且可以协同增强内源性修复过程和中风后的功能恢复。