Nakao Mitsuyoshi, Inanaga Daimu, Nagase Kenichi, Kanazawa Hideko
Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan.
Regen Ther. 2019 May 10;11:34-40. doi: 10.1016/j.reth.2019.01.002. eCollection 2019 Dec.
INTRODUCTION: Stem cell therapy with mesenchymal stem cells (MSCs) has been widely used in many clinical trials, and therapy with MSC sheets shows promise for patients. However, there are few reports characterizing MSC sheets. In the present study, the properties of MSC sheets derived from bone marrow, adipose tissue, and umbilical cord were evaluated. METHODS: Cell sheets were fabricated with MSCs from different tissue origins in temperature-responsive cell culture dishes with and without pre-coating of fetal bovine serum (FBS). MSC adhesion behavior in the culture dish was observed. Secretion of cytokines related to cell proliferation and immune regulation from MSC sheets was investigated by ELISA. The adhesion properties of the MSC sheets were investigated by time-lapse microscopy. RESULTS: Different cell adhesion and proliferation rates in temperature-responsive cell culture dishes were observed among the three types of MSCs. FBS pre-coating of the dishes enhanced cell attachment and proliferation in all cell types. Harvested cell sheets showed high attachment capacity to tissue culture polystyrene dish surfaces. CONCLUSIONS: MSC sheets can be fabricated from MSCs from different tissue origins using temperature-responsive cell culture dishes. The fabricated MSC sheets could be useful in cell transplantation therapies by choosing appropriate types of MSCs that secrete therapeutic cytokines for the targeted diseases.
引言:间充质干细胞(MSCs)的干细胞疗法已在许多临床试验中广泛应用,并且MSCs片层疗法对患者显示出前景。然而,关于MSCs片层特性的报道很少。在本研究中,对源自骨髓、脂肪组织和脐带的MSCs片层的特性进行了评估。 方法:在有和没有预先包被胎牛血清(FBS)的温度响应性细胞培养皿中,用来自不同组织来源的MSCs制备细胞片层。观察MSCs在培养皿中的黏附行为。通过酶联免疫吸附测定(ELISA)研究MSCs片层中与细胞增殖和免疫调节相关的细胞因子分泌情况。通过延时显微镜观察MSCs片层的黏附特性。 结果:在三种类型的MSCs中,观察到在温度响应性细胞培养皿中有不同的细胞黏附及增殖速率。培养皿的FBS预包被增强了所有细胞类型的细胞附着和增殖。收获的细胞片层对组织培养聚苯乙烯培养皿表面显示出高附着能力。 结论:使用温度响应性细胞培养皿可以从不同组织来源的MSCs制备MSCs片层。通过选择分泌针对靶向疾病的治疗性细胞因子的合适类型的MSCs,制备的MSCs片层可能在细胞移植治疗中有用。
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