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Updated: Mar 30, 2026
Purification of Mouse Brain Vessels
Published on: November 10, 2015
Purification of Mouse Brain Vessels
Anne-Cécile Boulay1, Bruno Saubaméa2, Xavier Declèves2
1Collège de France, Center for Interdisciplinary Research in Biology (CIRB), Centre National de la Recherche Scientifique CNRS, Unité Mixte de Recherche 7241, Institut National de la Santé et de la Recherche Médicale; Centre Interdisciplinaire de Recherche en Biologie; MEMOLIFE Laboratory of Excellence and Paris Science, Lettre Research University.
This study presents a new protocol to isolate intact brain blood vessels, preserving their structure and cellular components. This method aids in studying cerebrovascular physiology and brain pathologies.
Area of Science:
- Neuroscience
- Vascular Biology
- Cell Biology
Background:
- The brain's vascular system, including the blood-brain barrier (BBB), is crucial for regulating molecular and immune cell exchange.
- Neuronal metabolic demands necessitate precise moment-to-moment blood flow regulation.
- Disruptions in cerebrovascular regulation are implicated in numerous brain pathologies, including glioblastoma, stroke, neurodegenerative diseases, and inflammatory conditions.
Purpose of the Study:
- To develop a protocol for purifying brain vessel fragments while maintaining structural integrity.
- To enable detailed study of cerebrovascular physiology and cellular interactions.
- To facilitate research into the cellular and molecular mechanisms underlying brain pathologies.
Main Methods:
- A novel protocol for the purification of intact brain vessel fragments.
- Characterization of isolated vessels using techniques to assess structural integrity and cellular composition.
- Demonstration of immunostaining feasibility on purified brain vessels.
Main Results:
- Isolated brain vessels retain structural integrity, with endothelial cells sealed by tight junctions and surrounded by a continuous basal lamina.
- Pericytes, smooth muscle cells, and astrocyte endfeet remain attached to the endothelial layer in the purified vessels.
- The protocol allows for successful immunostaining of purified brain vessels, preserving cellular morphology and relationships.
Conclusions:
- The described protocol effectively purifies brain vessel fragments, preserving their native structure and cellular associations.
- This method provides a valuable tool for investigating cerebrovascular physiology and pathology.
- Preserving intercellular relationships and structural integrity is key for understanding brain vascular functions.
