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首页> 外文期刊>Journal of Cellular Physiology >Characterization of mesenchymal stem cells from human normal and hyperplastic gingiva.
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Characterization of mesenchymal stem cells from human normal and hyperplastic gingiva.

机译:特征的间充质干细胞人类的正常和增生性齿龈。

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摘要

Human gingiva plays an important role in the maintenance of oral health and shows unique fetal-like scarless healing process after wounding. Here we isolate and characterize mesenchymal stem cells from human normal and hyperplastic gingival tissues (N-GMSC and H-GMSC, respectively). Immunocytochemical staining indicated that gingival lamina propria contained Stro-1 and SSEA-4 positive cells, implying existence of putative gingival MSC. Under attachment-based isolating and culturing condition, gingival MSC displayed highly clonogenic and long-term proliferative capability. By using single colony isolation and expansion approaches, we found both N-GMSC and H-GMSC possessed self-renewal and multipotent differentiation properties. N-GMSC and H-GMSC showed distinct immunoregulatory functions in a murine skin allograft setting via up-regulation of putative systemic regulatory T cells (Tregs). N-GMSC and H-GMSC were capable of regenerating collagenous tissue following in vivo transplantation, in which H-GMSC exhibited more robust regenerative capability. These findings suggest that gingival tissue contains tissue-specific mesenchymal stem cell population and is an ideal resource for immunoregulatory therapy due to its substantial availability and accessibility. In addition, gingival MSC over-activation may contribute to gingival hyperplastic phenotype.
机译:人类齿龈中发挥着重要作用维护口腔健康与显示独特fetal-like无疤愈合过程受伤。从人类的正常和间充质干细胞增生的牙龈组织(N-GMSC H-GMSC,分别)。表明,牙龈固有层控制Stro-1 SSEA-4阳性细胞,暗示存在的假定的牙龈MSC。attachment-based隔离和培养条件,牙龈MSC显示高度单独使用和长期增殖能力。扩张方法,我们发现N-GMSC和H-GMSC拥有自我更新和多功能分化特性。显示在不同的免疫调节功能小鼠皮肤移植设置通过上调假定的系统性调节性T细胞亚群)。N-GMSC H-GMSC和再生的能力胶原组织在体内移植,H-GMSC表现出更多的强大的再生能力。表明,牙龈组织包含组织间充质干细胞群和免疫调节是一个理想的资源治疗因其大量的可用性和可访问性。over-activation可能导致牙龈增生性的表现型。

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