细胞外膀衍生微RNAs作为多发性硬化症治疗反应的生物标志物
Gabriel Torres-Iglesias1, MariPaz López-Molina1, Rubén Ayala-Suárez2
1Neurological Sciences and Cerebrovascular Research Laboratory, Department of Neurology, Neurology and Cerebrovascular Disease Group, Neuroscience Area of Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital-Universidad Autónoma de Madrid), Spain.
Neurology(R) neuroimmunology & neuroinflammation
|June 19, 2025
概括
细胞外囊泡 (EVs) 和它们的微RNA含量显示为多发性硬化症 (MS) 治疗反应的早期生物标志物具有前途. 在三个月后分析这些标记可以帮助预测治疗效果,并防止不可逆转的神经损伤.
科学领域:
- 神经免疫学 神经免疫学
- 生物标志物发现发现
- 细胞外囊泡生物学 细胞外囊泡生物学
背景情况:
- 多发性硬化症 (MS) 是年轻人神经障碍的主要原因.
- 大约30%的患者经历治疗失败,尽管有可用的疾病修饰治疗 (DMT).
- 早期识别治疗反应的生物标志物对于优化MS治疗有效性至关重要.
研究的目的:
- 研究循环细胞外囊泡 (EVs) 作为MS患者治疗反应的早期生物标志物.
- 为了将EV特征 (水平,大小,microRNA含量) 与治疗反应的临床参数相关联.
- 评估EVs在预测治疗结果和预防不可逆转的神经损伤方面的有用性.
主要方法:
- 对开始新DMT的MS患者进行观察性研究.
- 在治疗前和治疗后3个月,评估神经元,寡干细胞,B细胞和T细胞中的EV水平,大小和microRNA含量.
- 在12个月内对EV标志物与无疾病活动证据 (NEDA) 复合物的相关性分析.
主要成果:
- EV水平和大小 (CD3 +,L1CAM +) 与复发,新的MRI病变和运动残疾进展相关.
- CD20+ EVs反映了认知障碍,而特定的微RNA (例如,miR-186-5p) 显示出差异性表达,并与诸如脑缩等结果相关.
- 结合EV水平和microRNA表达提供了一个强大的早期模型来预测治疗反应.
结论:
- 特定的EV特征和microRNA配置文件可以作为MS治疗反应的潜在早期生物标志物.
- 某些微RNA和特定的EV配置文件的下调表明有利的临床结果,并可以帮助早期治疗决策.
- 早期的EV和microRNA分析为预测神经损伤和优化MS管理提供了有价值的工具.
更多相关视频
相关概念视频
MicroRNAs
21.8K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
21.8K
Mesenchymal Stem Cells
5.0K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
5.0K
Overview of Exosomes
2.9K
Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
2.9K


