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Related Experiment Video

Updated: Aug 26, 2025

Isolation and Functional Analysis of Arteriolar Endothelium of Mouse Brain Parenchyma

Isolation and Functional Analysis of Arteriolar Endothelium of Mouse Brain Parenchyma

Published on: March 11, 2022

Single-cell transcriptomics reveals functionally specialized vascular endothelium in brain.

Hyun-Woo Jeong¹, Rodrigo Diéguez-Hurtado¹, Hendrik Arf¹

¹Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany.

|October 5, 2022

Summary

This summary is machine-generated.

Researchers identified specialized blood vessels in the brain called reactive endothelial venules. These vessels play a key role in initiating immune responses within the central nervous system (CNS) during neuroinflammation and aging.

Keywords:

blood-brain barrier developmental biology immunology inflammation mouse non-neuronal cell populations single-cell RNA sequencing vasculature

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Last Updated: Aug 26, 2025

Isolation and Functional Analysis of Arteriolar Endothelium of Mouse Brain Parenchyma

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Published on: March 11, 2022

Derivation, Expansion, Cryopreservation and Characterization of Brain Microvascular Endothelial Cells from Human Induced Pluripotent Stem Cells

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Published on: November 19, 2020

Isolation of Primary Murine Brain Microvascular Endothelial Cells

Isolation of Primary Murine Brain Microvascular Endothelial Cells

Published on: November 14, 2014

Area of Science:

Neuroscience
Immunology
Vascular Biology

Background:

The blood-brain barrier (BBB) protects the central nervous system (CNS) but its defects are implicated in neurological disorders.
Understanding the cellular diversity at the neurovascular interface and mechanisms of neuroinflammation is crucial.

Purpose of the Study:

To investigate the cellular heterogeneity of the murine cerebral cortex.
To identify specific cell populations involved in neuroinflammation and aging.

Main Methods:

Single-cell RNA sequencing was employed on non-neuronal cells from the murine cerebral cortex.
Analysis covered different life stages: development, adulthood, aging, and induced neuroinflammation.

Main Results:

A novel cell population, reactive endothelial venules, was identified.
These specialized endothelial cells exhibit high expression of adhesion molecules and facilitate leukocyte transmigration.
They are associated with perivascular macrophages and initiate CNS immune responses.

Conclusions:

Reactive endothelial venules represent a distinct vascular compartment within the brain.
These findings offer new insights into cerebral vasculature heterogeneity and molecular changes during neuroinflammation and aging.