• 1 January 1984
    • journal article
    • research article
    • Vol. 50  (1) , 87-93
Abstract
Extracellular spherical filipin-positive particles were demonstrated using the fluorescent cholesterol probe, filipin, in rat, rabbit and monkey atherosclerotic lesions induced by cholesterol feeding. Examination of tissue sections stained with both filipin (detects unesterified cholesterol) and oil red O (detects esterified cholesterol) demonstrated that extracellular filipin-positive particles did not stain with oil red O. Extracellular filipin-positive particles represent a previously unrecognized structure in which cholesterol accumulates within atherosclerotic lesions.