Related Experiment Video
Updated: Jan 3, 2026
Analysis of Microglia and Monocyte-derived Macrophages from the Central Nervous System by Flow Cytometry
Published on: June 22, 2017
Brain perivascular macrophages: Recent advances and implications in health and diseases
Tuo Yang1, Ruiming Guo1, Feng Zhang1
1Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, Pennsylvania.
Abstract:
Brain perivascular macrophages (PVMs) belong to a distinct population of brain-resident myeloid cells located within the perivascular space surrounding arterioles and venules. Their characterization depends on the combination of anatomical localization, phagocytic capacity, and molecular markers. Under physiological status, they provide structural and functional support for maintaining brain homeostasis, including facilitation of blood-brain barrier integrity and lymphatic drainage, and exertion of immune functions such as phagocytosis and antigen presentation. Increasing evidence also implicates their specific roles in diseased brain, ranging from cerebrovascular diseases, Aβ pathologies, infections, and autoimmunity. Collectively, PVMs are key components of the brain-resident immune system, actively participate in a broad-spectrum of processes in normal and diseased status. Details of the processes are largely underexplored. Targeting PVMs would lead to new insights and be a promising strategy for a broad array of human diseases.
Insights
Brain perivascular macrophages (PVMs) are crucial immune cells in the brain, supporting homeostasis and disease. Further research into PVMs could unlock new therapeutic strategies for various human conditions.
Area of Science:
- Neuroimmunology
- Cell Biology
- Vascular Biology
Background:
- Brain perivascular macrophages (PVMs) are specialized myeloid cells in the brain's perivascular space.
- They play vital roles in maintaining brain homeostasis, including blood-brain barrier integrity and immune functions like phagocytosis.
- PVMs are increasingly recognized for their involvement in neurological diseases.
Purpose of the Study:
- To highlight the multifaceted roles of PVMs in the healthy and diseased brain.
- To emphasize the need for further exploration of PVM functions.
- To propose PVMs as a potential therapeutic target for human diseases.
Main Methods:
- Characterization based on anatomical location, phagocytic capacity, and molecular markers.
- Review of existing evidence on PVM functions in physiological and pathological conditions.
- Analysis of PVM involvement in cerebrovascular diseases, Aβ pathologies, infections, and autoimmunity.
Main Results:
- PVMs are integral to brain-resident immune system functions.
- They actively participate in maintaining brain homeostasis and contribute to disease pathogenesis.
- Their precise roles in various conditions are not yet fully understood.
Conclusions:
- PVMs are key players in both normal brain function and disease states.
- Targeting PVMs presents a promising avenue for developing novel therapeutic strategies.
- Further research is essential to fully elucidate the complex functions of PVMs.
More Related Videos
Related Concept Videos
01:38Inflammation
01:25Immune Surveillance by NK Cells and Phagocytes
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
00:49The Blood-brain Barrier