ArticleClinical and translational medicine2025
Single-nucleus transcriptomic profiling reveals temporal dynamics of neuroinflammation and myelin repair after intracerebral haemorrhage.
Article in Clinical and translational medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Single-cell immune landscape of the central nervous system of mice infected with rabies virus.Frontiers in immunology · 2026Article
- Single-nucleus transcriptomic profiling reveals temporal dynamics of neuroinflammation and myelin repair after intracerebral haemorrhage.Clinical and translational medicine · 2025Article
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17 authors.
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Abstract
backgroundIntracerebral haemorrhage (ICH) progresses rapidly with complex pathology and limited treatment options, making it a severe subtype of stroke. The extravasation of blood into the brain parenchyma triggers a cascade of inflammatory responses, contributing to secondary injury. Single-nucleus RNA sequencing (snRNA-seq) data have enabled more profound insights into the cellular heterogeneity and dynamic interactions within the haemorrhagic brain. Immune cells play a crucial role in shaping neuroinflammation. However, the lack of comprehensive longitudinal studies limits our understanding of the temporal evolution of these inflammatory processes, posing a challenge to the development of targeted therapeutic strategies.
methodsWe used snRNA-seq in collagenase-induced ICH mouse models at Days 1, 3, 7, 14 and 28 post-injury, alongside naive controls, to profile the dynamics of gene expression over time.
resultsWe obtained 281 577 high-quality transcriptional profiles representing 21 distinct cell types. Co-expression network analysis revealed a prominent 'inflammation module' that remained active throughout ICH. Integrative single-cell transcriptomic and immunofluorescence staining suggested that the various Mif-expressing cells may contribute to local inflammation, potentially engaging macrophages via receptor-ligand pairs such as Cd44 and Cd74. Over time, microglia appeared to serve as key recipients of pro-inflammatory signals increasingly. During the resolution phase, oligodendrocytes exhibited transcriptional signatures consistent with enhanced maturation and remyelination, which T cell-mediated interactions may have facilitated.
conclusionsThese findings offer a systems-level perspective on cell-type-specific responses and immune-mediated interactions during ICH progression and resolution. KEY POINTS: Establish intracerebral haemorrhage (ICH) mouse models at various time points (Days 1, 3, 7, 14, 28) and construct a high-quality single-nucleus RNA sequencing (snRNA-seq) atlas. Computational analyses suggest that macrophage recruitment in the early stage of ICH potentially involves migration inhibitory factor (MIF) signalling pathways. T cells may interact with myelin-forming oligodendrocytes during the resolution phase, potentially contributing to remyelination after ICH.
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