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首页> 外文期刊>Brain research. Brain research protocols >A pre-clinical assessment model of rat autogeneic bone marrow stromal cell transplantation into the central nervous system.
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A pre-clinical assessment model of rat autogeneic bone marrow stromal cell transplantation into the central nervous system.

机译:大鼠自体骨髓基质细胞移植到中枢神经系统的临床前评估模型。

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In order to verify the biological aspects of 'autogeneic' bone marrow stromal cells (BMSC) transplantation for neurological disorders, we aimed our study towards the assessment of the survival, distribution, and differentiation of autologous BMSC in the central nervous system (CNS). We harvested rat BMSC from femur bones, and the nuclei were then fluorescently labeled by a 24-h co-culture with bis-benzimide. These BMSC were stereotactically injected into the striatum (n=6) or thoracic cord (n=8) of each animal. We evaluated the distribution and differentiation of 'autogeneic' BMSC in the brain and spinal cord after 4 weeks, using the immunohistochemistry technique. We found some injected cells in the ipsilateral striatum, hippocampus, neocortex, and bilateral corpus callosum, and approximately 20% and 15% of the engrafted cells expressed neuronal and astrocytic markers, respectively. Other injected cells were distributed in the dorsal funiculus and adjacent gray matter, and about 10% and 15% of these cells expressed neuronal and astrocytic markers, respectively. Although the precise mechanism of BMSC transdifferentiation still remains unclear, the present results show that 'autogeneic' BMSC could highly differentiate into their own CNS neural cells, suggesting that they are surrounded by favorable conditions.
机译:为了验证针对神经系统疾病的“自体”骨髓基质细胞(BMSC)移植的生物学方面,我们的研究旨在评估自体BMSC在中枢神经系统(CNS)中的存活,分布和分化。我们从股骨中收获了大鼠骨髓间充质干细胞,然后通过与双苯甲酰胺的24小时共培养对细胞核进行了荧光标记。将这些BMSC立体定向注射到每只动物的纹状体(n = 6)或胸索(n = 8)中。我们使用免疫组织化学技术评估了4周后“自体” BMSC在脑和脊髓中的分布和分化。我们在同侧纹状体,海马,新皮层和双侧体中发现了一些注射的细胞,并且大约20%和15%的移植细胞分别表达了神经元和星形细胞标记。其他注射的细胞分布在背侧幕和邻近的灰质中,这些细胞中约有10%和15%分别表达神经元和星形细胞标记。尽管尚不清楚BMSC转分化的确切机制,但目前的结果表明,“自体” BMSC可以高度分化为自己的CNS神经细胞,表明它们周围环境良好。

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