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首页> 外文期刊>Toxicology in vitro: an international journal published in association with BIBRA >Evaluation of the multipotent character of human adipose tissue-derived stem cells isolated by Ficoll gradient centrifugation and red blood cell lysis treatment.
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Evaluation of the multipotent character of human adipose tissue-derived stem cells isolated by Ficoll gradient centrifugation and red blood cell lysis treatment.

机译:通过Ficoll梯度离心和红细胞裂解处理分离的人脂肪组织干细胞的多能性评价。

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In the present study, the multipotent potential of two differential isolated human adipose-derived stem cell (hADSC) populations was evaluated. More specifically, hADSC isolated by means of classical Ficoll (F) gradient centrifugation were compared to hADSC isolated by means of red blood cell (RBC) lysis treatment and subsequent cultivation as 3D spheres. No significant difference in the genotypic expression of the multipotent markers Oct-4, Sox-2, Nanog, Klf-4 and cMyc could be observed between both isolation methods. Upon adipogenic and osteogenic differentiation, both hADSC populations showed lipid droplet accumulation and mineral deposition, respectively. Although, a more pronounced mineral deposition was observed in hADSC-RBC, suggesting a higher osteogenic potential. Upon exposure to keratinogenic media, both hADSC populations expressed the keratinocyte markers filaggrin and involucrin, evidencing a successful keratinogenic differentiation. Yet, no differences in expression were observed between the distinctive isolation procedures. Finally, upon exposure to neurogenic differentiation media, a significant difference in marker expression was observed. Indeed, hADSC-RBC only expressed vimentin and nestin, whereas hADSC-F expressed vimentin, nestin, NF-200, MBP and TH, suggesting a higher neurogenic potential. In summary, our data suggest that the choice of the most efficient isolation procedure of hADSC depends on the differentiated cell type ultimately required.
机译:在本研究中,评估了两个不同的分离的人类脂肪来源的干细胞(hADSC)群体的多能潜力。更具体地说,将通过经典Ficoll(F)梯度离心法分离的hADSC与通过红细胞(RBC)裂解处理并随后培养为3D球体分离的hADSC进行了比较。在两种分离方法之间,均未观察到多能性标志物Oct-4,Sox-2,Nanog,Klf-4和cMyc在基因型表达上的显着差异。经过成脂性和成骨性分化,两个hADSC群体分别显示出脂滴积累和矿物质沉积。虽然,在hADSC-RBC中观察到更明显的矿物质沉积,表明具有更高的成骨潜力。暴露于角蛋白形成培养基后,两个hADSC群体均表达角蛋白形成细胞标志物丝聚蛋白和囊蛋白,证明成功地形成了角蛋白。但是,在不同的隔离程序之间未观察到表达差异。最后,在暴露于神经原性分化培养基后,观察到标志物表达的显着差异。实际上,hADSC-RBC仅表达波形蛋白和巢蛋白,而hADSC-F表达波形蛋白,巢蛋白,NF-200,MBP和TH,表明具有更高的神经源性潜力。总之,我们的数据表明,hADSC最有效的分离程序的选择取决于最终所需的分化细胞类型。

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