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年轻和老年小鼠脂肪来源干细胞生物学特性对比

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背景:脂肪来源干细胞具有抗衰老的作用,但来自不同年龄供者的脂肪来源干细胞是否有区别,还需深入研究.目的:对比老年和年轻小鼠脂肪来源干细胞的生物学特性.方法:分别从8周龄、14周龄C57BL小鼠脂肪组织中提取脂肪来源干细胞,对比分析老年和年轻小鼠脂肪来源干细胞的细胞周期、凋亡、增殖能力的差异,定量PCR和Western blot检测老年和年轻小鼠脂肪来源干细胞衰老相关P21、P27基因和蛋白的表达.结果与结论:与老年小鼠脂肪来源干细胞相比,年轻小鼠脂肪来源干细胞更有活力,形态更规则,凋亡更少,增殖更快,衰老相关P21、P27基因和蛋白表达量更低,说明年轻小鼠脂肪来源干细胞具有更好的抗衰老作用.
Comparison of biological characteristics of adipose-derived stem cells in young and old mice
BACKGROUND:Adipose-derived stem cells have anti-aging effects,but whether adipose-derived stem cells from donors of different ages are different needs further study.OBJECTIVE:To compare the biological properties of adipose-derived stem cells in old and young mice.METHODS:Adipose-derived stem cells were extracted from adipose tissue of C57BL mice aged 8 and 14 weeks,respectively.The differences of cell cycle,apoptosis,and proliferation of adipose-derived stem cells in old and young mice were compared.The expression levels of aging-related P21 and P27 genes and proteins of adipose-derived stem cells in old and young mice were detected by quantitative PCR and western blot assay.RESULTS AND CONCLUSION:Compared with old mouse adipose-derived stem cells,young mouse adipose-derived stem cells were more active,more regular in morphology,less apoptosis,faster proliferation,and lower in expression of age-related P21 and P27 genes and proteins.It has been proven that adipose-derived stem cells from young mice have better anti-aging effects.

adipose-derived stem celladipose tissueyoungold agemouseanti-aging

林美玉、姚翔、高景、赵玺龙、潘兴华、阮光萍

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解放军联勤保障部队第九二〇医院基础医学实验室,云南省昆明市 650032

干细胞与免疫细胞生物医药技术国家地方联合工程研究中心,云南省昆明市 650032

云南省细胞治疗技术转化医学重点实验室,云南省昆明市 650032

脂肪来源干细胞 脂肪组织 年轻 老年 小鼠 抗衰老

云南省科技计划项目重大科技专项云南省重点项目中国人民解放军联勤保障部队第九二〇医院院管课题

2018ZF007202101AS0700392020YGD12

2025

中国组织工程研究
中国康复医学会,《中国组织工程研究与临床康复》杂志社

中国组织工程研究

北大核心
影响因子:1.387
ISSN:2095-4344
年,卷(期):2025.29(19)