title: An efficient and non-enzymatic method for isolation and culture of endothelial cells from the nidus of human cerebral arteriovenous malformations.
abstract: In this report, we describe an efficient and non-enzymatic method for isolating and culturing endothelial cells (ECs) from the nidus of surgically resected arteriovenous malformation (AVM) specimens. These cultured cells possessed typical phenotypic markers (i.e. von Willebrand factor and CD34), as well as morphological and ultrastructural characteristics of ECs. However, they had activated Notch-1 signaling, which plays a critical role in the development of AVM. The present study suggests that hypoxic endothelial cells from the nidus of human cerebral arteriovenous malformation (CAVMECs) have angiogenic potentials, as our data showed that VEGF gene expression and cell proliferation were more evident with prolonged hypoxia. In our study, we successfully used the vascular tissue explants adherent method to isolate and culture CAVMECs with high purity. This may prove to be a useful tool for studying the molecular mechanisms that mediate abnormal vessel development and maintenance in AVM.
authors.affiliation: Department of Neurosurgery, The General Hospital of Shenyang Military Region, 83 Wenhua Road, Shenyang 110840, China.
authors.forename: Hai-Feng
authors.initials: HF
authors.lastname: Zhang
authors.forename: Guo-Biao
authors.initials: GB
authors.lastname: Liang
authors.forename: Ming-Guang
authors.initials: MG
authors.lastname: Zhao
authors.forename: Zhen-Quan
authors.initials: ZQ
authors.lastname: Song
authors.forename: Zai-Hua
authors.initials: ZH
authors.lastname: Xu
mesh_terms: D000293:Adolescent; D000328:Adult; D001921:Brain / Q000473:pathology*; D018929:Cell Culture Techniques / Q000379:methods*; D049109:Cell Proliferation; D002470:Cell Survival; D002478:Cells, Cultured; D042783:Endothelial Cells / Q000473:pathology*; D004798:Enzymes; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000473:pathology*; D008297:Male; D013048:Specimen Handling / Q000379:methods*; D055815:Young Adult
chemical_list: D004798:Enzymes
keywords: AVM; Arteriovenous malformation; CAVM; CAVMECs; ECs; Endothelial cell; GFAP; Isolation method; NICD; PBS; arteriovenous malformation; cerebral arteriovenous malformation; endothelial cells; endothelial cells from the nidus of human cerebral arteriovenous malformation; glial fibrillary acidic protein; intracellular domain of Notch.; phosphate buffered saline; vWF; von Willebrand factor; α-SMA; α-smooth muscle actin