Related Experiment Video
Updated: May 8, 2025
09:49
Isolation of Region-specific Microglia from One Adult Mouse Brain Hemisphere for Deep Single-cell RNA Sequencing
Published on: December 3, 2019
10.7K
Dynamic cellular composition and immune landscape revealed by single-cell transcriptome profiling in a brain
Yutong Liu1, Hongchuan Niu2, Junze Zhang3
1Department of Neurosurgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China.
Functional & Integrative Genomics
|March 27, 2025
Summary
Brain arteriovenous malformation (bAVM) involves altered immune cell populations, with increased monocytes and decreased smooth muscle cells. These changes impact inflammation and cell communication, suggesting new therapeutic targets.
Area of Science:
- Neuroscience
- Immunology
- Genetics
Background:
- Cerebral arteriovenous malformation (bAVM) is a congenital vascular disorder with an unclear immune mechanism.
- This study investigates cellular composition and gene expression in bAVM.
Purpose of the Study:
- To characterize cellular and molecular changes in bAVM.
- To identify immune mechanisms contributing to bAVM pathogenesis.
Main Methods:
- Single-cell RNA sequencing was performed on bAVM and healthy control (HC) samples.
- Cell clustering, annotation, and differential gene expression analysis were conducted.
- Cell communication pathways were analyzed to identify altered interactions.
Main Results:
- Five major cell types were identified: NK cells, monocytes, fibroblasts, endothelial cells (EC), and smooth muscle cells (SMC).
- bAVM samples showed increased monocyte proportion and decreased SMC proportion compared to HC.
- Genes related to inflammation and cell migration, along with cell communication pathways, were significantly altered in bAVM.
Conclusions:
- Monocyte-endothelium and NK cell interactions are altered in bAVM.
- These findings suggest novel mechanisms for inflammation and cellular impairment in bAVM progression.
Keywords:
Brain arteriovenous malformationCell communicationCellular compositionImmune landscapeSingle-cell transcriptome
