多发性硬化症中的短链脂肪酸:与残疾相关,T2病变的数量和炎症概况
Maria Inmaculada Dominguez-Mozo1, Daniel López-Mecández2, Luisa María Villar3
1Grupo de Investigación de Factores ambientales en enfermedades degenerativas, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Red de Enfermedades Inflamatorias (REI), Red Española de Esclerosis Múltiple, Madrid, Spain.
Annals of clinical and translational neurology
|March 4, 2025
概括
短链脂肪酸 (SCFA),如 propionate (PA) 和 butyrate (BA) 在多发性硬化症 (MS) 患者中发生变化. 较低的SCFA比率与MS中增加的残疾和神经退行症标志物相关.
科学领域:
- 神经免疫学 神经免疫学
- 微生物组研究的研究.
- 代谢学 代谢学 代谢学
背景情况:
- 与健康对照组 (HC) 相比,多发性硬化症 (MS) 患者观察到肠道微生物组成的改变.
- 微生物衍生的代谢物,如短链脂肪酸 (SCFA),都与MS的发病有关.
- 了解SCFA与疾病参数的关联对于MS研究至关重要.
研究的目的:
- 调查血SCFA水平与MS的临床/放射学参数之间的关联.
- 在MS患者中探索SCFA和免疫系统炎症标志物之间的关系.
- 分析与疾病严重程度和进展相关的SCFA概况.
主要方法:
- 一项多中心观测后期横截面研究,包括161名多发性硬化症患者和130名高血压患者.
- 血SCFA (乙酸盐,酸盐,丁酸盐) 使用液态染色体质谱学量化.
- 血液细胞亚种群和细胞因子表达通过流动细胞计分析.
主要成果:
- 与HC相比,在MS患者中发现了较低的血 propionate (PA) 和PA/乙酸盐 (AA) 比率.
- 在MS患者中,降低的PA/AA和丁酸盐 (BA) /AA比率与更高的残疾 (EDSS) 和T2损伤负载相关.
- SCFA比率与促炎性细胞因子产生免疫细胞 (例如GM-CSF+,TNF-α+,IFN-γ+ T细胞和TNF-α+ B细胞) 有负相关.
结论:
- 血PA/AA和BA/AA比率在MS中不平衡,可能促进疾病的发病.
- 这些SCFA比率与EDSS和T2损伤负载有显著的关联,这表明与神经退行性过程而不是活性疾病的联系.
- 对SCFA调制的进一步研究可能为MS提供新的治疗策略.
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