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The therapeutic effect of the intravenous administration of bone marrow stromal cells for treating transient focal cerebral ischemia in rats
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF NEUROMEDICINE
- Issue:
- 2
- DOI:
- 10.3760/cma.j.issn.1671-8925.2004.02.003
- Key Word:
- 骨髓基质细胞;局灶性脑缺血;脑源性神经营养因子;细胞移植;凋亡;微血管密度
Abstract： 目的探讨骨髓基质细胞静脉移植治疗大鼠短暂性局灶性脑缺血的可行性及其机制.方法将大鼠骨髓基质细胞在体外纯化、扩增并经BrdU标记后,经尾静脉移植到局灶性脑缺血大鼠体内,通过神经缺损评分观察移植后大鼠神经行为学改善情况,通过组织学方法观察移植到脑内的骨髓基质细胞表达脑源性神经营养因子、缺血灶周围细胞凋亡及脑微血管密度的变化.结果骨髓基质细胞移植组大鼠的神经缺损评分显著低于对照组(P＜0.05);移植到脑内的骨髓基质细胞主要选择性分布于缺血灶周围区域并表达BDNF;骨髓基质细胞移植组大鼠梗死灶周围的凋亡细胞明显少于对照组(P＜0.01)、微血管密度显著高于对照组(P＜0.001).结论经静脉注射移植骨髓基质细胞能够明显促进局灶性脑缺血大鼠的神经行为功能恢复;抗凋亡及促微血管增生可能是骨髓基质细胞移植治疗局灶性脑缺血的机制之一.
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