Title : Uptake of exogenous free cholesterol induces upregulation of tissue factor expression in human monocyte-derived macrophages.

Pub. Date : 1992 Nov 1

PMID : 1438222






10 Functional Relationships(s)
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1 Uptake of exogenous free cholesterol induces upregulation of tissue factor expression in human monocyte-derived macrophages. Cholesterol coagulation factor III, tissue factor Homo sapiens
2 We investigated the effect of exogenous nonlipoprotein cholesterol on the expression of TF by human monocyte-derived macrophages in culture. nonlipoprotein cholesterol coagulation factor III, tissue factor Homo sapiens
3 Nonlipoprotein cholesterol at 50 micrograms/ml increased TF activity 4-fold; TF induction was dose- and time-dependent. nonlipoprotein cholesterol coagulation factor III, tissue factor Homo sapiens
4 Expression of TF activity was positively correlated with the free cholesterol content of monocyte-derived macrophages, was increased upon inhibition of cholesterol esterification, and reflected de novo synthesis of TF protein. Cholesterol coagulation factor III, tissue factor Homo sapiens
5 Expression of TF activity was positively correlated with the free cholesterol content of monocyte-derived macrophages, was increased upon inhibition of cholesterol esterification, and reflected de novo synthesis of TF protein. Cholesterol coagulation factor III, tissue factor Homo sapiens
6 TF expression in cholesterol-loaded macrophages remained sensitive to stimulation (approximately 12-fold) by bacterial lipopolysaccharide, indicating that intracellular free cholesterol and lipopolysaccharide act by distinct mechanisms in inducing TF procoagulant activity. Cholesterol coagulation factor III, tissue factor Homo sapiens
7 TF expression in cholesterol-loaded macrophages remained sensitive to stimulation (approximately 12-fold) by bacterial lipopolysaccharide, indicating that intracellular free cholesterol and lipopolysaccharide act by distinct mechanisms in inducing TF procoagulant activity. Cholesterol coagulation factor III, tissue factor Homo sapiens
8 TF expression in cholesterol-loaded macrophages remained sensitive to stimulation (approximately 12-fold) by bacterial lipopolysaccharide, indicating that intracellular free cholesterol and lipopolysaccharide act by distinct mechanisms in inducing TF procoagulant activity. Cholesterol coagulation factor III, tissue factor Homo sapiens
9 TF expression in cholesterol-loaded macrophages remained sensitive to stimulation (approximately 12-fold) by bacterial lipopolysaccharide, indicating that intracellular free cholesterol and lipopolysaccharide act by distinct mechanisms in inducing TF procoagulant activity. Cholesterol coagulation factor III, tissue factor Homo sapiens
10 Our results suggest that loading human monocyte-derived macrophages with free cholesterol induces upregulation of TF expression, thereby contributing to thrombus formation at sites of plaque rupture. Cholesterol coagulation factor III, tissue factor Homo sapiens