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Are serum-free and xeno-free culture conditions ideal for large scale clinical grade expansion of Wharton’s jelly derived mesenchymal stem cells? A comparative study

机译:无血清和无异种培养条件是否是沃顿商学院的果冻来源的间充质干细胞大规模临床级扩增的理想选择?比较研究

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摘要

IntroductionMesenchymal stromal/stem cells (MSCs) for clinical use have largely been isolated from the bone marrow, although isolation of these cells from many different adult and fetal tissues has been reported as well. One such source of MSCs is the Whartons Jelly (WJ) of the umbilical cord, as it provides an inexhaustible source of stem cells for potential therapeutic use. Isolation of MSCs from the umbilical cord also presents little, if any, ethical concerns, and the process of obtaining the cord tissue is relatively simple with appropriate consent from the donor. However, a great majority of studies rely on the use of bovine serum containing medium for isolation and expansion of these cells, and porcine derived trypsin for dissociating the cells during passages, which may pose potential risks for using these cells in clinical applications. It is therefore of high priority to develop a robust production process by optimizing culture variables to efficiently and consistently generate MSCs that retain desired regenerative and differentiation properties while minimizing risk of disease transmission.
机译:引言尽管已报道从许多不同的成年和胎儿组织中分离出这些细胞,但临床上已广泛从骨髓中分离出用于临床的间充质基质/干细胞(MSC)。 MSC的一种这样的来源是脐带的Whaltons Jelly(WJ),因为它为潜在的治疗用途提供了不竭的干细胞来源。从脐带中分离MSC的伦理问题也很少(如果有的话),并且在获得捐赠者的适当同意下,获得脐带组织的过程相对简单。然而,绝大多数研究依赖于使用含有牛血清的培养基来分离和扩增这些细胞,以及使用猪衍生的胰蛋白酶在传代过程中解离细胞,这可能会在临床应用中使用这些细胞带来潜在的风险。因此,最重要的是通过优化培养变量来开发稳定的生产工艺,以高效,稳定地产生保留所需再生和分化特性,同时将疾病传播风险降至最低的MSC。

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