Biomimetic oyster shell-replicated topography alters the behaviour of human skeletal stem cells.

Biomimetic oyster shell-replicated topography alters the behaviour of human skeletal stem cells.
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DOI:
10.1177/2041731418794007
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发表时间:
2018-01
影响因子:
8.2
通讯作者:
Oreffo RO
Oreffo RO
中科院分区:
工程技术1区
文献类型:
--
作者:
Waddell SJ;de Andrés MC;Tsimbouri PM;Alakpa EV;Cusack M;Dalby MJ;Oreffo RO

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骨骼干细胞的再生潜能为骨骼肌修复提供了一个诱人的前景。一个中心问题仍然是有效的,受控的细胞分化策略,以帮助细胞疗法的临床进展。珠母贝贝壳的珍珠层表面被认为可以促进骨的形成。然而,到目前为止,有一个缺乏的信息的作用,P. maxima表面的地形,珍珠层和棱柱。为了研究这一点,珍珠层和棱镜地形特征复制到聚己内酯和骨骼干细胞的行为研究的表面上。珍珠层表面的骨基质干细胞表现出细胞面积增加,成骨标志物ALP表达增加,(p <0.05)和OCN(p <0.01)和代谢物强度增加(p <0.05),表明珍珠层表面诱导成骨分化的作用,而在棱柱表面上,骨骼干细胞没有显示细胞面积或成骨标志物表达的改变以及代谢物强度的降低(p <0.05),证明了棱柱表面的独特作用,具有维持骨骼干细胞表型的潜力。
The regenerative potential of skeletal stem cells provides an attractive prospect to generate bone tissue needed for musculoskeletal reparation. A central issue remains efficacious, controlled cell differentiation strategies to aid progression of cell therapies to the clinic. The nacre surface from Pinctada maxima shells is known to enhance bone formation. However, to date, there is a paucity of information on the role of the topography of P. maxima surfaces, nacre and prism. To investigate this, nacre and prism topographical features were replicated onto polycaprolactone and skeletal stem cell behaviour on the surfaces studied. Skeletal stem cells on nacre surfaces exhibited an increase in cell area, increase in expression of osteogenic markers ALP (p < 0.05) and OCN (p < 0.01) and increased metabolite intensity (p < 0.05), indicating a role of nacre surface to induce osteogenic differentiation, while on prism surfaces, skeletal stem cells did not show alterations in cell area or osteogenic marker expression and a decrease in metabolite intensity (p < 0.05), demonstrating a distinct role for the prism surface, with the potential to maintain the skeletal stem cell phenotype.
人骨髓基质细胞亚群的前瞻性隔离:富含Stro的1-,CD146-和CD105富含种群之间的比较研究。
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影响因子: 8.2
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