摘要
背景:氧化应激和慢性高血糖症是2型糖尿病的两个主要副作用,影响所有类型的细胞,包括间充质干细胞(MSC)。 作为细胞疗法的选择,了解MSC的行为将为有效治疗提供关键信息。 方法:用各种浓度的葡萄糖,二甲双胍,雷帕霉素和过氧化氢处理胎盘间充质干细胞,以监测其活力和细胞周期分布。 通过MTT测定法检查细胞活力。 通过碘化丙锭染色研究细胞周期分布,并使用膜联蛋白V碘化丙锭染色和流式细胞术确定细胞凋亡。 通过蛋白质印迹评估Akt,P70S6K和AMPK的激活,评估潜在信号通路的参与程度。 结果:结果表明,高葡萄糖可增强细胞活力并降低二甲双胍的毒性潜力。 但是,过氧化氢和雷帕霉素的毒性加剧。 结论:我们的研究结果表明,在培养中存在雷帕霉素,二甲双胍和过氧化氢的情况下,高葡萄糖浓度对胎盘间充质干细胞的生存能力有重大影响。
关键词: 葡萄糖,雷帕霉素,二甲双胍,过氧化氢,间充质干细胞,细胞毒性潜能
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