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A Preclinical Controlled Cortical Impact Model for Traumatic Hemorrhage Contusion and Neuroinflammation
Published on: June 10, 2020
The impact of thrombo-inflammation on the cerebral microcirculation
Junaid Ansari1, Felicity N E Gavins2
1Department of Neurology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, USA.
Insights
Neutrophils significantly impact cerebrovascular diseases through thrombo-inflammation. Understanding their dual role in inflammation and resolution is key for developing new stroke treatments targeting neuroprotection.
Area of Science:
- Neuroscience
- Immunology
- Cardiovascular Medicine
Background:
- Thrombo-inflammation, the interplay of thrombosis and inflammation, is a key factor in cerebrovascular diseases.
- Chronic microcirculatory dysfunction from conditions like hypertension and diabetes underlies most cerebrovascular events.
- Immune cells, particularly neutrophils, are central to neuroinflammation in the microcirculation.
Purpose of the Study:
- To elucidate the pathophysiological role of neutrophils in stroke.
- To review current pharmacotherapeutic strategies for cerebrovascular diseases.
- To identify potential therapeutic targets for neuroprotection and inflammation mitigation.
Main Methods:
- Review of existing literature on neutrophils, thrombo-inflammation, and stroke.
- Analysis of the dual role of neutrophils in physiological versus pathological vascular states.
- Discussion of ongoing drug discovery programs and therapeutic targets.
Main Results:
- Neutrophils exhibit context-dependent roles, mediating both inflammatory and pro-resolution effects.
- Their involvement is critical in the initiation and progression of neuroinflammatory responses.
- Understanding neutrophil function offers avenues for therapeutic intervention in stroke.
Conclusions:
- Targeting neutrophil function presents a promising strategy for treating cerebrovascular diseases.
- Pharmacotherapies aimed at modulating neutrophil activity can enhance neuroprotection and promote resolution.
- Further research into neutrophil-specific targets is crucial for effective stroke management.
Abstract:
The intertwined processes of thrombosis and inflammation (termed "thrombo-inflammation") are significant drivers of cerebrovascular diseases, and as such, they represent prime targets for drug discovery programs focusing on treatment and management of cerebrovascular diseases. Most cerebrovascular events result from chronic systemic microcirculatory dysfunction due to underlying conditions, for example, hypertension, diabetes mellitus, coronary artery disease, dyslipidemia, and sickle cell disease. Immune cells especially neutrophils play a critical role in the onset and maintenance of neuroinflammatory responses in the microcirculation. Neutrophils have the ability to drive both inflammatory and anti-inflammatory/pro-resolution effects depending on the underlying vascular state (physiological vs. pathological). In this article, we highlight the pathophysiological role of neutrophils in stroke and discuss ongoing pharmacotherapeutic strategies that are focused on identifying potential therapeutic targets for enhancing neuroprotection, mitigating inflammatory pathways, and enabling resolution.
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