男性单细胞样细胞容易发生衰老诱导的炎症状态
Luan Hernando Samit1, Julia Temp2,3, Irene Algarra Flores2
1Charité -Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Geriatrics and Medical Gerontology, Berlin, Germany.
Aging and disease
|November 26, 2025
概括
细胞性影响免疫细胞衰老. 男性单细胞在衰老时变得更容易炎症,这表明需要针对性别的治疗来对抗与年龄相关的炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 老年学是一门学科.
背景情况:
- 慢性系统性炎症是衰老的标志,与与年龄有关的疾病和衰老的免疫细胞有关.
- 虽然已知衰老的性别差异,但细胞性对免疫细胞衰老的影响尚不清楚.
研究的目的:
- 为了研究细胞性对D-银糖诱导的免疫细胞衰老的影响.
- 为了比较男性和女性单细胞样细胞在衰老期间的分子和炎症反应.
主要方法:
- 在人类男性 (THP-1) 和女性 (HL-60) 单细胞样细胞中使用D-银糖诱导衰老.
- 评估了衰老标志物,代谢传感器 (Sirt1,pAMPK),线粒体功能,活性氧物种 (ROS) 和促炎标志物.
主要成果:
- 在男性和女性细胞中,D-银糖诱导的衰老标志物和与衰老相关的分泌表型因子 (IL-6,VEGF,TGF-β,MMP-9).
- 这两种细胞类型都显示Sirt1/pAMPK减少,线粒体ROS增加和线粒体基因表达升高.
- 与女性细胞相比,男性单细胞的炎症标志物 (NF-κB,TNF-α,IL-1β,HLA-DR,MCP-1) 的提升显著更大.
结论:
- 男性免疫细胞更容易在衰老期间发展出一种亲炎症状态.
- 研究结果表明,在免疫衰老中存在潜在的性别特异性差异,并强调了针对性抗炎疗法的必要性.
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