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首页> 外文期刊>Archives of Pharmacal Research >Comparison of ganglioside expression between human adipose- and dental pulp-derived stem cell differentiation into osteoblasts
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Comparison of ganglioside expression between human adipose- and dental pulp-derived stem cell differentiation into osteoblasts

机译:人脂肪和牙髓衍生干细胞分化为成骨细胞中神经节苷脂表达的比较

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摘要

Human adipose-derived stem cells (hADSCs) and dental pulp-derived stem cells (hDPSCs) have been considered alternative sources of adult stem cells because of their potential to trans-differentiate into multiple cell lineages. This study investigated the possible role of gangliosides in the osteoblast differentiation of hADSCs and hDPSCs. First, we investigated characterization of hADSCs and hDPSCs using FACS analysis. Mesenchymal stem cell specific markers, CD44 and CD105, were expressed but not hematopoetic markers, CD45 and CD117 in both of hADSCs and hDPSCs. High-performance thin-layer chromatography analysis showed that increased gangliosides were associated with differentiation of hADSCs and hDPSCs into osteoblasts. RT-PCR analysis confirmed that osteoblast specific genes, ALP, BMP-2, collagen were expressed in differentiated osteoblasts, however, the another osteoblast specific gene, osteocalcin, was not expressed. When hADSCs and hDPSCs were cultured under osteoblast-differentiation conditions, alkaline phosphatase (ALP) activity was increased in comparison to hADSCs and hDPSCs. Furthermore, specifically both ALP activity and ganglioside expression increased more in hDPSCs-derived osteoblasts than hADSCs-derived osteoblasts. These results suggest that gangliosides play a more important role in regulating the osteoblast-differentiation of hDPSCs compared to hADSCs.
机译:人脂肪来源的干细胞(hADSCs)和牙髓来源的干细胞(hDPSCs)被认为是成体干细胞的替代来源,因为它们具有转分化成多种细胞谱系的潜力。这项研究调查了神经节苷脂在hADSCs和hDPSCs的成骨细胞分化中的可能作用。首先,我们使用FACS分析研究了hADSCs和hDPSCs的表征。在hADSCs和hDPSCs中均表达了间充质干细胞特异性标志物CD44和CD105,但不表达造血标志物CD45和CD117。高效薄层色谱分析表明,神经节苷脂的增加与hADSCs和hDPSCs向成骨细胞的分化有关。 RT-PCR分析证实,成骨细胞特异性基因ALP,BMP-2,胶原蛋白在分化的成骨细胞中表达,而另一个成骨细胞特异性基因骨钙蛋白未表达。当在成骨细胞分化条件下培养hADSC和hDPSC时,与hADSC和hDPSC相比,碱性磷酸酶(ALP)活性增加。此外,与hADSCs衍生的成骨细胞相比,在hDPSCs衍生的成骨细胞中,特别是ALP活性和神经节苷脂表达均增加。这些结果表明,与hADSCs相比,神经节苷脂在调节hDPSCs的成骨细胞分化中起着更重要的作用。

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