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Harvesting, identification and barrier function of human lung microvascular endothelial cells. 2010

John D Catravas, and Connie Snead, and Christiana Dimitropoulou, and Albert S Y Chang, and Rudolf Lucas, and Alexander D Verin, and Stephen M Black
Medical College of Georgia, Augusta, GA 30912-2300, USA. jcatrava@mcg.edu

Endothelial barrier dysfunction is an important contributor to the pathogenesis of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). Even though approaches that target the prevention and repair of endothelial barrier dysfunction are clearly needed, our understanding of the molecular regulation of pulmonary microvascular endothelial permeability remains incomplete. Cultured pulmonary microvascular endothelial cells represent an attractive paradigm for the study of barrier function. Here, we describe a method for the harvest, identification and culture of human lung microvascular endothelial cells (HLMVEC). HLMVEC thus obtained, grow as a monolayer, exhibit contact inhibition and have the typical cobblestone appearance. They express endothelial proteins, such as von Willebrand factor and endothelial nitric oxide synthase and take up an acetylated LDL. Furthermore, HLMVEC respond predictably and with superior sensitivity to the barrier disruptive effects of Gram positive and Gram negative bacterial products, thrombin, vascular endothelial growth factor and microtubule disrupting agents. These HLMVEC present an in-house-derived alternative to commercially available human cells for the study of mechanisms contributing to ALI and ARDS.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D010539 Permeability Property of membranes and other structures to permit passage of light, heat, gases, liquids, metabolites, and mineral ions. Permeabilities
D012128 Respiratory Distress Syndrome A syndrome characterized by progressive life-threatening RESPIRATORY INSUFFICIENCY in the absence of known LUNG DISEASES, usually following a systemic insult such as surgery or major TRAUMA. ARDS, Human,Acute Respiratory Distress Syndrome,Adult Respiratory Distress Syndrome,Pediatric Respiratory Distress Syndrome,Respiratory Distress Syndrome, Acute,Respiratory Distress Syndrome, Adult,Respiratory Distress Syndrome, Pediatric,Shock Lung,Distress Syndrome, Respiratory,Distress Syndromes, Respiratory,Human ARDS,Lung, Shock,Respiratory Distress Syndromes,Syndrome, Respiratory Distress
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D004730 Endothelium, Vascular Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components. Capillary Endothelium,Vascular Endothelium,Capillary Endotheliums,Endothelium, Capillary,Endotheliums, Capillary,Endotheliums, Vascular,Vascular Endotheliums
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014841 von Willebrand Factor A high-molecular-weight plasma protein, produced by endothelial cells and megakaryocytes, that is part of the factor VIII/von Willebrand factor complex. The von Willebrand factor has receptors for collagen, platelets, and ristocetin activity as well as the immunologically distinct antigenic determinants. It functions in adhesion of platelets to collagen and hemostatic plug formation. The prolonged bleeding time in VON WILLEBRAND DISEASES is due to the deficiency of this factor. Factor VIII-Related Antigen,Factor VIIIR-Ag,Factor VIIIR-RCo,Plasma Factor VIII Complex,Ristocetin Cofactor,Ristocetin-Willebrand Factor,von Willebrand Protein,Factor VIII Related Antigen,Factor VIIIR Ag,Factor VIIIR RCo,Ristocetin Willebrand Factor
D042783 Endothelial Cells Highly specialized EPITHELIAL CELLS that line the HEART; BLOOD VESSELS; and lymph vessels, forming the ENDOTHELIUM. They are polygonal in shape and joined together by TIGHT JUNCTIONS. The tight junctions allow for variable permeability to specific macromolecules that are transported across the endothelial layer. Capillary Endothelial Cells,Lymphatic Endothelial Cells,Vascular Endothelial Cells,Capillary Endothelial Cell,Cell, Capillary Endothelial,Cell, Endothelial,Cell, Lymphatic Endothelial,Cell, Vascular Endothelial,Cells, Capillary Endothelial,Cells, Endothelial,Cells, Lymphatic Endothelial,Cells, Vascular Endothelial,Endothelial Cell,Endothelial Cell, Capillary,Endothelial Cell, Lymphatic,Endothelial Cell, Vascular,Endothelial Cells, Capillary,Endothelial Cells, Lymphatic,Endothelial Cells, Vascular,Lymphatic Endothelial Cell,Vascular Endothelial Cell
D052250 Nitric Oxide Synthase Type III A CALCIUM-dependent, constitutively-expressed form of nitric oxide synthase found primarily in ENDOTHELIAL CELLS. ECNOS Enzyme,ENOS Enzyme,Endothelial Constitutive Nitric Oxide Synthase,Endothelial Nitric Oxide Synthase,Nitric Oxide Synthase, Type III
D055371 Acute Lung Injury A condition of lung damage that is characterized by bilateral pulmonary infiltrates (PULMONARY EDEMA) rich in NEUTROPHILS, and in the absence of clinical HEART FAILURE. This can represent a spectrum of pulmonary lesions, endothelial and epithelial, due to numerous factors (physical, chemical, or biological). Lung Injury, Acute,Acute Lung Injuries,Lung Injuries, Acute

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