渐进性多发性硬化症中的加速细胞衰老:一个组织病理学研究
Dimitrios Papadopoulos1,2,3, Roberta Magliozzi4,5, Sara Bandiera5
1School of Medicine, European University, Nicosia, Cyprus.
Annals of neurology
|February 1, 2025
概括
细胞衰老 (CS) 存在于渐进性多发性硬化症 (P-MS) 病变中,并与更快的疾病进展有关. 在P-MS中确定CS为神经退行症提供了新的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 导致渐进性多发性硬化症 (P-MS) 障碍的神经退行机制尚不完全理解.
- 新出现的证据表明细胞衰老 (CS) 在神经退行性疾病中.
- 这项研究调查了P-MS中CS的存在和模式.
研究的目的:
- 为了调查进展性多发性硬化症 (P-MS) 中细胞衰老 (CS) 的证据.
- 确定CS在P-MS病变中的分布和细胞起源.
- 为了将CS标志物与疾病进展和临床结果相关联.
主要方法:
- 使用了P-MS患者和健康对照的尸检材料.
- 在白质病变 (WMLs),正常出现的白质 (NAWM) 和灰质 (NAGM) 中使用标志物53BP1,p16和脂素评估细胞衰老 (CS).
- 在脑脊液 (CSF) 中量化了老化相关的分泌表型 (SASP) 因素,并与老化细胞标志物相关联.
主要成果:
- 与对照组相比,在P-MS白质病变 (WMLs) 和灰质病变 (GMLs) 中发现了显著增加的p16+和lipofuscin+细胞.
- 细胞衰老 (CS) 在神经元,星球细胞,寡细胞,微质细胞和病变内的巨细胞中被确定.
- 在P-MS中,较高的衰老细胞数与使用轮椅的更快进展和死亡率的增加相关.
结论:
- 细胞衰老 (CS) 是渐进性多发性硬化症 (P-MS) 激活脱髓化病变的一个突出特征.
- 在P-MS中衰老细胞的负担与加速的疾病进展和较差的临床结果有关.
- 这些发现凸显了CS作为P-MS的潜在治疗点.
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