低循环线粒体DNA和增加的线粒激素表明系统性红斑狼与脏参与的系统性狼显著的线粒体功能障碍
Matthieu Halfon1, Ashfaque A Memon2, Anna Hedelius2
1Transplantation Center, Lausanne University Hospital, Lausanne, Switzerland matthieu.halfon@chuv.ch.
Lupus science & medicine
|February 3, 2025
概括
线粒体功能障碍标志物,包括全血线粒体DNA (mtDNA) 与核DNA (nucDNA) 的比例,在全身性红斑狼 (SLE) 中发生变化,特别是在脏参与的情况下. 增长分化因子15 (GDF-15) 可能表明SLE患者的疾病活性.
科学领域:
- 免疫学 免疫学 免疫学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 线粒体生物学 线粒体生物学
背景情况:
- 系统性红斑狼 (SLE) 是一种具有显著发病率的慢性自身免疫性疾病,特别影响脏.
- 线粒体功能障碍与SLE的发病有关,可以通过线粒体DNA (mtDNA) 和与压力相关的细胞因子 (线粒体因子) 来评估.
- 循环mtDNA是SLE的潜在生物标志物,但测量方法不一致.
研究的目的:
- 用滴滴数字PCR评估全血线粒体DNA与核DNA (mtDNA/nucDNA) 的比例.
- 评估循环中的线粒激素,特别是生长分化因子15 (GDF-15) 和纤维细胞生长因子21.
- 为了比较这些生物标志物在SLE患者和没有脏参与.
主要方法:
- 一项横截面研究包括195名SLE患者和年龄相匹配的健康志愿者 (HV).
- 在SLE患者和没有脏干扰 (eGFR<60毫升/分钟或蛋白尿 >0.5克/天) 之间比较了生物标志物.
- 此外,还对患有活跃和不活跃SLE的患者进行了比较.
主要成果:
- 与HV相比,SLE患者的mtDNA/nucDNA比率较低,特别是脏受损患者.
- 在患有脏病的SLE患者中,米托金水平升高.
- 在mtDNA/nucDNA比率和全球疾病活性之间没有发现相关性,但线粒激素水平,特别是GDF-15,与疾病活性相关,即使对功能进行了调整.
结论:
- 减少全血mtDNA/nucDNA比率可能作为SLE损伤的标志物.
- GDF-15显示出作为SLE疾病活性生物标志物的潜力.
- 需要进一步的研究,以确定这些标志物的临床实用性,以预测活跃的狼性炎.
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