Regulation of the threshold for lipoprotein-induced acyl-CoA:cholesterol O-acyltransferase stimulation in macrophages by cellular sphingomyelin content.

Macrophage acyl-CoA:cholesterol O-acyltransferase (ACAT), a key enzyme in atheroma foam cell formation, is stimulated by lipoproteins only after a “threshold” amount of cholesterol has accumulated in the cell. The present study explores the hypothesis that cellular sphingomyelin, by increasing the c...

Full description

Bibliographic Details
Main Authors: A.K. Okwu, X.X. Xu, Y. Shiratori, I. Tabas
Format: Article
Language:English
Published: Elsevier 1994-04-01
Series:Journal of Lipid Research
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227520411782