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首页> 外文期刊>Acta neurobiologiae experimentalis >Comparison of dynamic behavior and maturation of neural multipotent cells derived from different spinal cord developmental stages: an in vitro study
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Comparison of dynamic behavior and maturation of neural multipotent cells derived from different spinal cord developmental stages: an in vitro study

机译:不同脊髓发育阶段衍生的神经多能细胞动态行为和成熟的比较:一项体外研究

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摘要

Neural progenitor cells (NPCs) are characterized as undifferentiated cells with the ability of self-renewal and multipotency to give rise to other cells of the nervous system. In our in vitro study we demonstrate the proliferative and differentiative potential of NPCs isolated from the spinal cord at different developmental stages (embryonal, early postnatal, adult), maintained and expanded within neurospheres (NSs). Using the NSs culture system, we examined the size, number of NSs and their fate when exposed to differentiation conditions. Based on immunocytochemical analyses for cell markers (MAP 2, GFAP, RIP) we evaluated the occurrence of various cell types: neurons, astrocytes and oligodendrocytes. The results show that NSs increased in size during cultivation time via NPC proliferation, but proliferation potential decreased Turing maturation stages. In addition, NPCs derived from spinal cord developmentally different stages gave rise to a consistent ratio of glial and neuronal progeny (3:1), and adult tissues represent a comparable source of NPCs compared to embryonal and early postnatal tissues. These data provide useful information for large-scale in vitro expansion of NPCs required for potential cell therapy after spinal cord injury.
机译:神经祖细胞(NPC)的特征是未分化的细胞,具有自我更新和多能性的能力,可引起神经系统的其他细胞。在我们的体外研究中,我们证明了在不同发育阶段(胚胎,产后早期,成年)从脊髓分离的NPC在神经球(NSs)中维持和扩展的增殖和分化潜能。使用NSs培养系统,我们研究了暴露于分化条件下的NSs的大小,数量及其命运。基于细胞标记物(MAP 2,GFAP,RIP)的免疫细胞化学分析,我们评估了各种细胞类型的发生:神经元,星形胶质细胞和少突胶质细胞。结果表明,NSs在培养过程中会通过NPC增殖而增大,但增殖潜力会降低图灵成熟阶段。此外,源自脊髓发育不同阶段的NPC产生了一致的神经胶质和神经元后代比例(3:1),与胚胎和出生后早期组织相比,成人组织代表了相当的NPC来源。这些数据为脊髓损伤后潜在细胞治疗所需的NPC的大规模体外扩增提供了有用的信息。

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