与衰老相关的基因通过生物信息学揭示了缺血性中风中的神经炎症机制
Zhengyu Yao1,2, Jin Jiang1,2, Yaxin Ju1,2
1Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
Heliyon
|November 13, 2023
概括
与衰老相关的基因 (ARG) 在缺血性中风 (IS) 中显著影响免疫微环境. 本研究确定了关键的ARG和涉及IS的途径,为这种使人衰弱的疾病提供了潜在的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 生物信息学是一种生物信息学.
背景情况:
- 缺血性中风 (IS) 是一个主要的全球健康问题,特别是在老年人中,由于与年龄有关的免疫功能障碍.
- 与衰老相关的基因 (ARG) 在IS免疫微环境中的特定作用仍然在很大程度上未被探索.
研究的目的:
- 调查ARG与缺血性中风中的免疫生物标志物之间的关联.
- 确定关键的ARG和涉及IS病原和免疫反应的途径.
主要方法:
- 对人类血液微阵列数据集 (GSE22255,GSE16561) 的生物信息分析,以确定差异表达的ARG.
- 功能丰富分析和机器学习算法来识别枢纽基因和相关途径.
- 使用单细胞测序数据 (GSE129788) 和聚类分析来定义IS亚型的验证.
主要成果:
- 确定了502个ARG,其中29个在IS中显示差异表达.
- 七个关键的ARG (IL1B,FOS,JUN,CXCL5,PTGS2,TNFAIP3,TLR4) 与免疫和炎症途径有关,包括IL-17,TNF,NF-kappa B信号传递.
- 确定了五个枢纽DE-ARG (IL2RB,FOS,IL7R,ALDH2,BIRC2) 并与免疫特征相关.
- 通过NF-kappa B信号通路基因表达来区分两个IS亚型.
结论:
- 在缺血性中风微环境中,ARG在调节免疫反应方面发挥着至关重要的作用.
- 特定的ARG和途径确定了新的IS预防和治疗策略的当前潜在目标.
- 这些发现为未来研究IS中与年龄相关的免疫失调提供了基础.
相关概念视频
01:15Ischemic Stroke l: Introduction
Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
01:15Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...