Title : An oxidized derivative of cholesterol increases the release of soluble vascular cell adhesion molecule-1 from human umbilical vein endothelial cells in culture.

Pub. Date : 2001 Apr 30

PMID : 11325610






6 Functional Relationships(s)
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Protein Name
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1 Treatment of human umbilical vein endothelial cells (HUVECs) with 7-ketocholesterol resulted in an increased release of soluble vascular cell adhesion molecule-1 (VCAM-1) into culture medium. 7-ketocholesterol vascular cell adhesion molecule 1 Homo sapiens
2 Treatment of human umbilical vein endothelial cells (HUVECs) with 7-ketocholesterol resulted in an increased release of soluble vascular cell adhesion molecule-1 (VCAM-1) into culture medium. 7-ketocholesterol vascular cell adhesion molecule 1 Homo sapiens
3 Western blot analysis revealed that soluble VCAM-1, in the conditioned medium of both 7-ketocholesterol-stimulated and control cells, had a molecular size of 100 kDa. 7-ketocholesterol vascular cell adhesion molecule 1 Homo sapiens
4 Stimulation of the TNF-alpha-treated HUVECs with 7-ketocholesterol further increased the levels of soluble VCAM-1 in the culture medium. 7-ketocholesterol vascular cell adhesion molecule 1 Homo sapiens
5 Pretreatment of the cells with tissue inhibitor of membrane metalloproteinase-2 (TIMP-2) completely inhibited the release of VCAM-1 in response to 7-ketocholesterol but TIMP-1 had no effect. 7-ketocholesterol vascular cell adhesion molecule 1 Homo sapiens
6 We conclude that 7-ketocholesterol releases VCAM-1 from the endothelium probably by a proteolytic process. 7-ketocholesterol vascular cell adhesion molecule 1 Homo sapiens