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A Nonenzymatic and Automated Closed-Cycle Process for the Isolation of Mesenchymal Stromal Cells in Drug Delivery Applications

机译:在药物输送应用中分离间质基质细胞的非酶和自动闭环过程

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摘要

The adipose tissue is a good source of mesenchymal stromal cells that requires minimally invasive isolation procedures. To ensure reproducibility, efficacy, and safety for clinical uses, these procedures have to be in compliant with good manufacturing practices. Techniques for harvesting and processing human adipose tissue have rapidly evolved in the last years, and Lipogems® represents an innovative approach to obtain microfragmented adipose tissue in a short time, without expansion and/or enzymatic treatment. The aim of this study was to assess the presence of mesenchymal stromal cells in the drain bag of the device by using a prototype Lipogems processor to wash the lipoaspirate in standardized condition. We found that, besides oil and blood residues, the drain bag contained single isolated cells easy to expand and with the typical characteristics of mesenchymal stromal cells that can be loaded with paclitaxel to use for drug-delivery application. Our findings suggest the possibility to replace the drain bag with a “cell culture chamber” obtaining a new integrated device that, without enzymatic treatment, can isolate and expand mesenchymal stromal cells in one step with high good manufacturing practices compliance. This system could be used to obtain mesenchymal stromal cells for regenerative purposes and for drug delivery.
机译:脂肪组织是间充质基质细胞的良好来源,需要微创隔离程序。为了确保临床使用的可重复性,有效性和安全性,这些程序必须符合良好的生产规范。过去几年中,用于采集和处理人体脂肪组织的技术发展迅速,Lipogems®代表了一种创新的方法,可在短时间内获得微碎片化的脂肪组织,而无需进行扩展和/或酶处理。这项研究的目的是通过使用原型Lipogems处理器清洗标准化条件下的脂肪抽吸物来评估设备排水袋中间充质基质细胞的存在。我们发现,除油脂和血液残留物外,引流袋还包含单个易于扩增的分离细胞,并具有间充质基质细胞的典型特征,可以装载紫杉醇用于药物递送应用。我们的发现表明,有可能用“细胞培养室”代替引流袋,从而获得一种新的集成设备,无需进行酶处理,即可一步步分离和扩增间充质基质细胞,并且符合良好的生产规范。该系统可用于获得间充质基质细胞,以用于再生目的和用于药物递送。

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