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Updated: Dec 22, 2025
Isolation of Primary Murine Brain Microvascular Endothelial Cells
Published on: November 14, 2014
Characterization of Endothelial Cells Associated with Cerebral Arteriovenous Malformation
Yu-Chen Jia1, Jia-Yue Fu2, Ping Huang3
1Inner Mongolia Key Laboratory of Molecular Biology, School of Basic Medical Sciences, Inner Mongolia Medical University, Hohhot, People's Republic of China.
Insights
Vascular endothelial cells (ECs) from cerebral arteriovenous malformations (cAVMs) show enhanced proliferation and migration. These arterialized vein ECs (AV-ECs) present potential therapeutic targets for treating cAVMs.
Area of Science:
- Vascular Biology
- Pathophysiology
- Regenerative Medicine
Background:
- Cerebral arteriovenous malformation (cAVM) involves complex angiogenesis and vein remodeling.
- The specific role and changes in vascular endothelial cells (ECs) during cAVM development are not fully understood.
Purpose of the Study:
- To investigate the morphological and functional characteristics of ECs in the context of cAVM.
- To determine if ECs from cAVMs exhibit altered properties compared to normal ECs.
Main Methods:
- Established a rat model of cAVM by creating an arteriovenous fistula.
- Utilized digital subtraction angiography (DSA), histology, and immunohistochemistry for model evaluation.
- Isolated and characterized endothelial cells (ECs) from both cAVM and control rats using MTT, cell scratch, and tube formation assays.
- Quantified vascular endothelial growth factor (VEGF) secretion via ELISA.
Main Results:
- The cAVM rat model displayed characteristic pathological features.
- Endothelial cells from arterialized veins (AV-ECs) demonstrated significantly enhanced proliferation, migration, and tube formation capabilities compared to normal vein ECs (NV-ECs).
- AV-ECs secreted significantly higher levels of VEGF than NV-ECs.
Conclusions:
- Endothelial cells isolated from the cAVM rat model exhibit increased proliferative, migratory, and angiogenic potential.
- These AV-ECs represent a potential therapeutic target for cAVM treatment.
Introduction:
Cerebral arteriovenous malformation (cAVM) is a disease characterized by the angiogenesis and remodeling of veins. However, whether vascular endothelial cells (ECs) exhibit morphological and functional changes during cAVM remains unclear. This study aimed to investigate the role of ECs in the pathogenesis of cAVM.
Methods:
Rat model of cAVM was established by anastomosing the common carotid artery with the external jugular vein. The digital subtraction angiography (DSA), HE, Masson and immunohistochemical staining were performed to evaluate the model. ECs were isolated from AVM rat model or control rats, and characterized by MTT, cell scratch, and tube formation assays. The secretion of vascular endothelial growth factor (VEGF) was detected by ELISA.
Results:
AVM rat model showed typical pathological characteristics of cAVM. In addition, the proliferation, migration and tube formation abilities of ECs of arterialized vein (AV-ECs) were significantly better than those of ECs of normal vein (NV-ECs). Moreover, the levels of secreted VEGF were significantly higher in AV-ECs than in NV-ECs.
Conclusion:
AV-ECs isolated from AVM rat model showed increased proliferation, migration and angiogenesis and may be potential target for the treatment of cAVM.
