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The Role of Macrophage in the Pathogenesis of Brain Arteriovenous Malformation
Li Ma1, Yi Guo2, Yuan-Li Zhao3
1Center for Cerebrovascular Research, Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, California, United States of America ; Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Abstract:
Brain arteriovenous malformation (BAVM) is an important risk factor for intracranial hemorrhage, especially in children and young adults. Inflammation has been implicated in BAVM lesion progression. Among various inflammatory components, macrophage is one of the major inflammatory cells present in human ruptured and unruptured BAVM and in the BAVM lesions of animal models. The role of macrophage in BAVM pathogenesis is not fully understood. In this review, we summarize recent studies on macrophages and introduce a non-invasive imaging protocol as a potential tool for detecting macrophage in BAVM and predicting the risk of BAVM rupture.
Insights
Macrophages play a key role in brain arteriovenous malformation (BAVM) progression and rupture risk. A novel non-invasive imaging protocol may help detect these inflammatory cells in BAVM.
Area of Science:
- Neuroscience
- Immunology
- Vascular Biology
Background:
- Brain arteriovenous malformation (BAVM) is a significant cause of intracranial hemorrhage, particularly in pediatric and young adult populations.
- Inflammation is increasingly recognized as a critical factor in the development and progression of BAVM lesions.
- Macrophages are identified as key inflammatory cells within human BAVM tissues and animal models, suggesting their involvement in BAVM pathogenesis.
Purpose of the Study:
- To review current research on the role of macrophages in the pathogenesis of brain arteriovenous malformations.
- To introduce a potential non-invasive imaging protocol for detecting macrophages within BAVM.
- To explore the utility of this imaging approach in predicting the risk of BAVM rupture.
Main Methods:
- Comprehensive literature review of studies investigating macrophages in BAVM.
- Description of a proposed non-invasive imaging protocol.
- Analysis of how macrophage detection could correlate with BAVM rupture risk.
Main Results:
- Macrophages are consistently found in both ruptured and unruptured human BAVM, as well as in experimental BAVM models.
- The precise role of macrophages in BAVM development and rupture remains an active area of investigation.
- The proposed non-invasive imaging protocol shows promise for in-vivo macrophage detection in BAVM.
Conclusions:
- Macrophages are integral to BAVM pathogenesis and may serve as a biomarker for rupture risk.
- Non-invasive imaging of macrophages offers a novel strategy for BAVM assessment.
- Further research is warranted to validate the imaging protocol and its predictive capabilities for BAVM rupture.
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