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一份分子脑图谱揭示了中风修复阶段的细胞变化。

A molecular brain atlas reveals cellular shifts during the repair phase of stroke.

作者信息

Weber Rebecca Z, Achón Buil Beatriz, Rentsch Nora H, Bosworth Allison, Zhang Mingzi, Kisler Kassandra, Tackenberg Christian, Rust Ruslan

机构信息

Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952, Switzerland.

Neuroscience Center Zurich, ETH Zurich and University of Zurich, Zurich, 8057, Switzerland.

出版信息

J Neuroinflammation. 2025 Apr 18;22(1):112. doi: 10.1186/s12974-025-03437-z.


DOI:10.1186/s12974-025-03437-z
PMID:40251566
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12008922/
Abstract

Ischemic stroke triggers a cascade of pathological events that affect multiple cell types and often lead to incomplete functional recovery. Despite advances in single-cell technologies, the molecular and cellular responses that contribute to long-term post-stroke impairment remain poorly understood. To gain better insight into the underlying mechanisms, we generated a single-cell transcriptomic atlas from distinct brain regions using a mouse model of permanent focal ischemia at one month post-injury. Our findings reveal cell- and region-specific changes within the stroke-injured and peri-infarct brain tissue. For instance, GABAergic and glutamatergic neurons exhibited upregulated genes in signaling pathways involved in axon guidance and synaptic plasticity, and downregulated pathways associated with aerobic metabolism. Using cell-cell communication analysis, we identified increased strength in predicted interactions within stroke tissue among both neural and non-neural cells via signaling pathways such as those involving collagen, protein tyrosine phosphatase receptor, neuronal growth regulator, laminin, and several cell adhesion molecules. Furthermore, we found a strong correlation between mouse transcriptome responses after stroke and those observed in human nonfatal brain stroke lesions. Common molecular features were linked to inflammatory responses, extracellular matrix organization, and angiogenesis. Our findings provide a detailed resource for advancing our molecular understanding of stroke pathology and for discovering therapeutic targets in the repair phase of stroke recovery.

摘要

缺血性中风引发一系列病理事件,这些事件会影响多种细胞类型,并常常导致功能恢复不完全。尽管单细胞技术取得了进展,但对导致中风后长期功能障碍的分子和细胞反应仍知之甚少。为了更好地了解潜在机制,我们使用永久性局灶性缺血小鼠模型,在损伤后一个月从不同脑区生成了单细胞转录组图谱。我们的研究结果揭示了中风损伤和梗死周围脑组织内细胞和区域特异性的变化。例如,GABA能和谷氨酸能神经元在轴突导向和突触可塑性相关的信号通路中表现出基因上调,而与有氧代谢相关的通路则下调。通过细胞间通讯分析,我们发现中风组织内神经细胞和非神经细胞之间通过涉及胶原蛋白、蛋白酪氨酸磷酸酶受体、神经生长调节因子、层粘连蛋白和几种细胞粘附分子等信号通路的预测相互作用强度增加。此外,我们发现中风后小鼠转录组反应与人类非致命性脑中风病变中观察到的反应之间存在很强的相关性。常见的分子特征与炎症反应、细胞外基质组织和血管生成有关。我们的研究结果为推进我们对中风病理学的分子理解以及在中风恢复修复阶段发现治疗靶点提供了详细的资源。

相似文献

[1]
A molecular brain atlas reveals cellular shifts during the repair phase of stroke.

J Neuroinflammation. 2025-4-18

[2]
A molecular brain atlas reveals cellular shifts during the repair phase of stroke.

bioRxiv. 2024-8-22

[3]
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[4]
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[5]
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[6]
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[7]
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[8]
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[9]
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[10]
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引用本文的文献

[1]
Angiogenic Cell Precursors and Neural Cell Precursors in Service to the Brain-Computer Interface.

Cells. 2025-7-29

[2]
How neural stem cell therapy promotes brain repair after stroke.

Stem Cell Reports. 2025-6-10

[3]
The blood-brain barrier: a help and a hindrance.

Brain. 2025-7-7

本文引用的文献

[1]
Heterogeneous fibroblasts contribute to fibrotic scar formation after spinal cord injury in mice and monkeys.

Nat Commun. 2024-7-27

[2]
Brain repair mechanisms after cell therapy for stroke.

Brain. 2024-10-3

[3]
Deletion of endothelial IGFBP5 protects against ischaemic hindlimb injury by promoting angiogenesis.

Clin Transl Med. 2024-6

[4]
Integrating spatial and single-cell transcriptomics to characterize the molecular and cellular architecture of the ischemic mouse brain.

Sci Transl Med. 2024-2-7

[5]
A toolkit for stroke infarct volume estimation in rodents.

Neuroimage. 2024-2-15

[6]
Analysis of brain and blood single-cell transcriptomics in acute and subacute phases after experimental stroke.

Nat Immunol. 2024-2

[7]
A high-resolution transcriptomic and spatial atlas of cell types in the whole mouse brain.

Nature. 2023-12

[8]
Nogo-A is secreted in extracellular vesicles, occurs in blood and can influence vascular permeability.

J Cereb Blood Flow Metab. 2024-6

[9]
Aerobic glycolysis is the predominant means of glucose metabolism in neuronal somata, which protects against oxidative damage.

Nat Neurosci. 2023-12

[10]
CD13 facilitates immune cell migration and aggravates acute injury but promotes chronic post-stroke recovery.

J Neuroinflammation. 2023-10-10

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