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Improved human endometrial stem cells differentiation into functional hepatocyte‐like cells on a glycosaminoglycan/collagen‐grafted polyethersulfone nanofibrous scaffold

机译:将人子宫内膜干细胞改进分化为糖胺聚糖/胶原蛋白接枝的聚醚砜纳米纤维支架上的功能性肝细胞样细胞

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Abstract Liver tissue engineering (TE) is rapidly emerging as an effective technique which combines engineering and biological processes to compensate for the shortage of damaged or destroyed liver tissues. We examined the viability, differentiation, and integration of hepatocyte‐like cells on an electrospun polyethersulfone (PES) scaffold, derived from human endometrial stem cells (hEnSCs). Natural polymers were separately grafted on plasma‐treated PES nanofibers, that is, collagen, heparan sulfate (HS) and collagen–HS. Galactosilated PES (PES‐Gal) nanofibrous were created. The engineering and cell growth parameters were considered and compared with each sample. The cellular studies revealed increased cell survival, attachment, and normal morphology on the bioactive natural polymer‐grafted scaffolds after 30 days of hepatic differentiation. The chemical and molecular assays displayed hepatocyte differentiation. These cells were also functional, showing glycogen storage, α‐fetoprotein, and albumin secretion. The HS nanoparticle‐grafted PES nanofibers demonstrated a high rate of cell proliferation, differentiation, and integration. Based on the observations mentioned above, engineered tissue is a good option in the future, for the commercial production of three‐dimensional liver tissues for clinical purposes. ? 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 2516–2529, 2017.
机译:摘要肝脏组织工程(TE)迅速涌现为一种有效的技术,它结合了工程和生物过程,以补偿损坏或破坏肝组织的短缺。我们研究了衍生自人子宫内膜干细胞(HESC)的电纺 - 聚醚砜(PES)支架上的肝细胞样细胞的可行性,分化和整合。将天然聚合物分别接枝在等离子体处理的PEN纳米纤维上,即胶原蛋白,硫酸乙酰肝素(HS)和胶原-Hs。产生半乳糖PES(PES-GAL)纳米纤维。将工程和细胞生长参数考虑并与每个样品进行比较。细胞研究显示在30天肝脏分化后生物活性天然聚合物接枝支架上的细胞存活,附着和正常形态增加。化学和分子测定显示肝细胞分化。这些细胞也具有功能性,显示糖原储存,α-胎儿和白蛋白分泌。 HS纳米颗粒接枝PEN纳米纤维显示出高速率的细胞增殖,分化和整合。基于上述观察,工程组织是未来的良好选择,用于临床目的的三维肝组织的商业生产。还2016 Wiley期刊,Inc.J生物保解员B:Appl Biomater,105B:2516-2529,2017。

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