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首页> 外文期刊>Neurosurgery >Multiple differentiation potentials of neonatal dura mater-derived cells.
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Multiple differentiation potentials of neonatal dura mater-derived cells.

机译:新生硬脑膜来源细胞的多重分化潜能。

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OBJECTIVE: The involvement of the dura mater in calvarial development and bone healing lead to a hypothesis that progenitor cells with multiple differentiation potentials exist within this tissue. The present study investigated the differentiation potentials of dura mater-derived cells by driving them into several cell-restricted lineages. METHODS: Dissected dura mater tissue of neonatal rats was washed, finely minced, and enzymatically digested. The harvested cells were exposed to different differentiation (osteogenic, adipogenic, and chondrogenic) and basic media. RESULTS: At defined time points, dura mater-derived cells were observed to differentiate into osteoblastic, adipoblastic, and chondroblastic cells, evidenced by specific biochemical staining. In addition, gene expressions of osteogenesis (alkaline phosphatase, osteocalcin, and osteopontin), chondrogenesis (collagen Type II and aggrecan core protein) and adipogenesis (peroxisome proliferator activated receptor gamma-2) were up-regulated in the differentiated dura mater-derived cells, confirmed by polymerase chain reaction. CONCLUSION: Preliminarily, it was concluded that a subpopulation of multiple potential mesenchymal cells exists in neonatal dura mater, which explains the function of the dura mater on neurocranium development and calvarial bone healing.
机译:目的:硬脑膜参与颅骨的发育和骨愈合导致一个假说,该组织内存在具有多种分化潜能的祖细胞。本研究通过将硬脑膜来源的细胞驱动到几种细胞限制性谱系中来研究其分化潜能。方法:解剖新生大鼠硬脑膜组织,切碎,酶消化。将收获的细胞暴露于不同的分化(成骨,成脂和成软骨)和碱性培养基。结果:在确定的时间点,观察到硬脑膜来源的细胞分化为成骨细胞,脂肪母细胞和软骨母细胞,通过特定的生化染色证明。此外,在分化的硬脑膜来源的细胞中,成骨作用(碱性磷酸酶,骨钙蛋白和骨桥蛋白),软骨形成(胶原II型和聚集蛋白聚糖核心蛋白)和脂肪形成(过氧化物酶体增殖物激活的受体γ-2)的基因表达上调。 ,通过聚合酶链反应证实。结论:初步得出结论,新生硬脑膜中存在多个潜在的间充质细胞亚群,这解释了硬脑膜对神经颅骨发育和颅骨愈合的作用。

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