抗氧化剂可以提高糖尿病骨髓MSC的活力,而不会挽救它们的亲再生性分泌功能
Michelle Maartens1, Mare Vlok2, Mari van de Vyver1
1Experimental Medicine Research Group, Department of Medicine, Faculty of Medicine & Health Sciences, Stellenbosch University, Cape Town, South Africa.
Molecular and cellular endocrinology
|March 8, 2025
概括
抗氧化剂,如N-乙半氨酸和酸-2-酸,可以改善糖尿病患者骨髓中介质干细胞 (BM-MSC) 功能. 预防性抗氧化剂的使用可以保护BM-MSCs免受衰退,增强其治疗潜力.
科学领域:
- 生物医学科学 生物医学科学
- 再生医学是一种再生医学.
- 蛋白质组学是指蛋白质组学.
背景情况:
- 糖尿病会损害骨髓介质干细胞 (BM-MSC) 的功能和活力,限制它们的治疗应用.
- 了解BM-MSCs中与疾病相关的蛋白质组变化对于开发有效干预措施至关重要.
研究的目的:
- 为了研究糖尿病BM-MSCs中的蛋白质变化.
- 评估抗氧化剂N-乙半氨酸 (NAC) 和酸-2-酸 (AAP) 在拯救BM-MSC功能的有效性.
- 阐明 BM-MSCs 抗氧化作用背后的机制.
主要方法:
- 从肥胖的糖尿病小鼠中分离BM-MSCs (B6.Cg-Lepob/J).
- 有或没有NAC和AAP的BM-MSC的培养.
- 无标签的液体染色学和质谱学 (LC-MS) 用于蛋白质组分析.
- 评估细胞生长,活力和免疫类型.
主要成果:
- LC-MS确定了5079种蛋白质,其中251种在不同组之间表达不同.
- NAC/AAP治疗增强了BM-MSC的生长和活力,通过对参与氧化还原状态,ATP合成和Rho-GTPase信号传递的蛋白质进行上调调.
- 抗氧化剂调节了BM-MSCs的免疫表型,并准了呼吸链.
结论:
- 抗氧化剂补充剂 (NAC/AAP) 显示出改善糖尿病BM-MSC功能和活力的潜力.
- 细胞内蛋白质组分析揭示了涉及氧化还原平衡,能量代谢和免疫调节的机制.
- 预防性抗氧化剂的使用可能是预防BM-MSC功能障碍的一种有前途的策略,需要进一步研究治疗应用.
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