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ORIGINAL ARTICLE
Year : 2017  |  Volume : 130  |  Issue : 20  |  Page : 2465-2472

Analysis of the Expression of Angioarchitecture-related Factors in Patients with Cerebral Arteriovenous Malformation


1 Department of Neurosurgery, Guangdong General Hospital, Institute of Neuroscience, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
2 Department of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong 510632, China

Correspondence Address:
Dong Zhou
Department of Neurosurgery, Guangdong General Hospital, Institute of Neuroscience, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0366-6999.216413

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Background: Cerebral arteriovenous malformation (cAVM) is a type of vascular malformation associated with vascular remodeling, hemodynamic imbalance, and inflammation. We detected four angioarchitecture-related cytokines to make a better understanding of the potential aberrant signaling in the pathogenesis of cAVM and found useful proteins in predicting the risk of cerebral hemorrhage. Methods: Immunohistochemical analysis was conducted on specimens from twenty patients with cAVM diagnosed via magnetic resonance imaging and digital subtraction angiography and twenty primary epilepsy controls using antibodies against vascular endothelial growth factor receptor-2 (VEGFR-2), matrix metalloproteinase-9 (MMP-9), vascular cell adhesion molecule (VCAM-1), and endothelial nitric oxide synthase (eNOS). Western blotting and real-time fluorescent quantitative polymerase chain reaction (PCR) were performed to determine protein and mRNA expression levels. Student's t-test was used for statistical analysis. Results: VEGFR-2, MMP-9, VCAM-1, and eNOS expression levels increased in patients with cAVM compared with those in normal cerebral vascular tissue, as determined by immunohistochemical analysis. In addition, Western blotting and real-time PCR showed that the protein and mRNA expression levels of VEGFR-2, MMP-9, VCAM-1, and eNOS were higher in the cAVM group than in the control group, all the differences mentioned were statistically significant (P < 0.05). Conclusions: VEGFR-2, MMP-9, VCAM-1, and eNOS are upregulated in patients with cAVM and might play important roles in angiogenesis, vascular remodeling, and migration in patients with cAVM. MMP-9, VEGFR-2, VCAM-1, and eNOS might be potential excellent group proteins in predicting the risk of cerebral hemorrhage at arteriovenous malformation.


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