Increased release of von Willebrand factor antigen by endothelial cells whilst in active growth phase. |
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Authors: | A D Blann |
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Affiliation: | Department of Surgery, University Hospital of South Manchester, Didsbury, UK. |
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Abstract: | Human umbilical vein endothelial cells and fibroblasts were grown in tissue culture (with and without added endothelial cell growth supplement) to confluence. von Willebrand factor antigen was measured in supernatants every 24 hours. Cells grown in medium with growth supplement reached confluence before those grown without the supplement. von Willebrand factor antigen release was greatest under both sets of conditions when cells were in their most active growth phase, and rate of release slowed when cells were confluent. Fibroblasts grew more rapidly, showed a small response to the growth supplement, but supernatant von Willebrand factor antigen could not be detected. The implications of these findings for atherogenesis are discussed. |
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