Epigenetic regulation of the inflammatory response in stroke

Stroke is classified as ischemic or hemorrhagic, and there are few effective treatments for either type. Immunologic mechanisms play a critical role in secondary brain injury following a stroke, which manifests as cytokine release, blood–brain barrier disruption, neuronal cell death, and ultimately...

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Main Authors: Jingyi Liang, Fei Yang, Zixiao Li, Qian Li
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2025-11-01
Series:Neural Regeneration Research
Subjects:
Online Access:https://journals.lww.com/10.4103/NRR.NRR-D-24-00672
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author Jingyi Liang
Fei Yang
Zixiao Li
Qian Li
author_facet Jingyi Liang
Fei Yang
Zixiao Li
Qian Li
author_sort Jingyi Liang
collection DOAJ
description Stroke is classified as ischemic or hemorrhagic, and there are few effective treatments for either type. Immunologic mechanisms play a critical role in secondary brain injury following a stroke, which manifests as cytokine release, blood–brain barrier disruption, neuronal cell death, and ultimately behavioral impairment. Suppressing the inflammatory response has been shown to mitigate this cascade of events in experimental stroke models. However, in clinical trials of anti-inflammatory agents, long-term immunosuppression has not demonstrated significant clinical benefits for patients. This may be attributable to the dichotomous roles of inflammation in both tissue injury and repair, as well as the complex pathophysiologic inflammatory processes in stroke. Inhibiting acute harmful inflammatory responses or inducing a phenotypic shift from a pro-inflammatory to an anti-inflammatory state at specific time points after a stroke are alternative and promising therapeutic strategies. Identifying agents that can modulate inflammation requires a detailed understanding of the inflammatory processes of stroke. Furthermore, epigenetic reprogramming plays a crucial role in modulating post-stroke inflammation and can potentially be exploited for stroke management. In this review, we summarize current findings on the epigenetic regulation of the inflammatory response in stroke, focusing on key signaling pathways including nuclear factor-kappa B, Janus kinase/signal transducer and activator of transcription, and mitogen-activated protein kinase as well as inflammasome activation. We also discuss promising molecular targets for stroke treatment. The evidence to date indicates that therapeutic targeting of the epigenetic regulation of inflammation can shift the balance from inflammation-induced tissue injury to repair following stroke, leading to improved post-stroke outcomes.
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spelling doaj-art-178f5340dd394aeaa24acbe73c21a6032025-01-07T09:49:28ZengWolters Kluwer Medknow PublicationsNeural Regeneration Research1673-53741876-79582025-11-0120113045306210.4103/NRR.NRR-D-24-00672Epigenetic regulation of the inflammatory response in strokeJingyi LiangFei YangZixiao LiQian LiStroke is classified as ischemic or hemorrhagic, and there are few effective treatments for either type. Immunologic mechanisms play a critical role in secondary brain injury following a stroke, which manifests as cytokine release, blood–brain barrier disruption, neuronal cell death, and ultimately behavioral impairment. Suppressing the inflammatory response has been shown to mitigate this cascade of events in experimental stroke models. However, in clinical trials of anti-inflammatory agents, long-term immunosuppression has not demonstrated significant clinical benefits for patients. This may be attributable to the dichotomous roles of inflammation in both tissue injury and repair, as well as the complex pathophysiologic inflammatory processes in stroke. Inhibiting acute harmful inflammatory responses or inducing a phenotypic shift from a pro-inflammatory to an anti-inflammatory state at specific time points after a stroke are alternative and promising therapeutic strategies. Identifying agents that can modulate inflammation requires a detailed understanding of the inflammatory processes of stroke. Furthermore, epigenetic reprogramming plays a crucial role in modulating post-stroke inflammation and can potentially be exploited for stroke management. In this review, we summarize current findings on the epigenetic regulation of the inflammatory response in stroke, focusing on key signaling pathways including nuclear factor-kappa B, Janus kinase/signal transducer and activator of transcription, and mitogen-activated protein kinase as well as inflammasome activation. We also discuss promising molecular targets for stroke treatment. The evidence to date indicates that therapeutic targeting of the epigenetic regulation of inflammation can shift the balance from inflammation-induced tissue injury to repair following stroke, leading to improved post-stroke outcomes.https://journals.lww.com/10.4103/NRR.NRR-D-24-00672dna methylationhistone modificationintracerebral hemorrhageischemic strokeneuroinflammationneuroprotectionnon-coding rnarna methylationsubarachnoid hemorrhagetreatment
spellingShingle Jingyi Liang
Fei Yang
Zixiao Li
Qian Li
Epigenetic regulation of the inflammatory response in stroke
Neural Regeneration Research
dna methylation
histone modification
intracerebral hemorrhage
ischemic stroke
neuroinflammation
neuroprotection
non-coding rna
rna methylation
subarachnoid hemorrhage
treatment
title Epigenetic regulation of the inflammatory response in stroke
title_full Epigenetic regulation of the inflammatory response in stroke
title_fullStr Epigenetic regulation of the inflammatory response in stroke
title_full_unstemmed Epigenetic regulation of the inflammatory response in stroke
title_short Epigenetic regulation of the inflammatory response in stroke
title_sort epigenetic regulation of the inflammatory response in stroke
topic dna methylation
histone modification
intracerebral hemorrhage
ischemic stroke
neuroinflammation
neuroprotection
non-coding rna
rna methylation
subarachnoid hemorrhage
treatment
url https://journals.lww.com/10.4103/NRR.NRR-D-24-00672
work_keys_str_mv AT jingyiliang epigeneticregulationoftheinflammatoryresponseinstroke
AT feiyang epigeneticregulationoftheinflammatoryresponseinstroke
AT zixiaoli epigeneticregulationoftheinflammatoryresponseinstroke
AT qianli epigeneticregulationoftheinflammatoryresponseinstroke