首页> 外文会议>ASME summer bioengineering conference;SBC2009 >APOPTOTIC RESPONSE AND DIFFERENTIATION ABILITY OF ADIPOSE DERIVED STEM CELLS (ASCs) FROZEN/THAWED IN THE PRESENCE OF POLYVINYLPYRROLIDONE (PVP)
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APOPTOTIC RESPONSE AND DIFFERENTIATION ABILITY OF ADIPOSE DERIVED STEM CELLS (ASCs) FROZEN/THAWED IN THE PRESENCE OF POLYVINYLPYRROLIDONE (PVP)

机译:聚乙烯吡咯烷酮(PVP)存在时冷冻/解冻的脂肪来源干细胞(ASC)的凋亡反应和分化能力

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Effective techniques for the cryopreservation of human Adipose Stem Cells (ASCs) could increase the usefulness of these cells in tissue engineering and regenerative medicine. The traditional method of using fetal calf serum (FCS) and a chemical cryoprotectant like dimethylsulfoxide (DMSO) during freezing storage restricts the direct use of ASCs in regenerative medicine and reconstruction surgery. The objective of this study was to investigate the apoptotic, necrotic and viability response of ASCs frozen/thawed in the presence of a high molecular weight polymer, Polyvinylpyrrolidone (PVP) and in the absence of FCS. Post-freeze/thaw studies were also conducted to evaluate the effect of PVP on the in vitro osteogenic and adipogenic differentiation of ASCs. The results were compared with those obtained using the most commonly used cryopreservation media of 10%DMSO + 10% Dulbecco's Modified Eagle Media (DMEM) + 80%FCS.
机译:冷冻保存人脂肪干细胞(ASC)的有效技术可以提高这些细胞在组织工程和再生医学中的实用性。在冷冻储存期间使用胎牛血清(FCS)和化学冷冻保护剂(如二甲基亚砜(DMSO))的传统方法限制了ASC在再生医学和重建手术中的直接使用。这项研究的目的是研究在存在高分子量聚合物聚乙烯吡咯烷酮(PVP)和不存在FCS的情况下冷冻/融化的ASC的凋亡,坏死和存活力反应。还进行了冷冻/解冻后研究,以评估PVP对ASC体外成骨和成脂分化的影响。将结果与使用最常用的10%DMSO + 10%Dulbecco改良的Eagle培养基(DMEM)+ 80%FCS的冷冻保存介质所获得的结果进行比较。

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