Molecular interactions leading to lipoprotein retention and the initiation of atherosclerosis.

Publication/Presentation Date

12-1-2004

Abstract

Atherosclerosis is distinguished by the accumulation of lipoprotein lipid within the arterial wall. An ionic interaction of positively charged regions of apolipoprotein (apo) B with matrix proteins, including proteoglycans, collagen, and fibronectin, is thought to initiate this process. Proteoglycans are complex glycoproteins containing highly negatively charged carbohydrate chains. These proteins are abundant in atherosclerosis lesions, and they associate with apoB-containing lipoproteins. Several specific regions of apoB may mediate this process. Other lipoprotein-associated proteins, including apoE and lipases, might also participate in this process. In addition, retention may occur via lipoprotein association with other matrix molecules or as a consequence of intra-arterial lipoprotein aggregation.

Volume

24

Issue

12

First Page

2211

Last Page

2218

ISSN

1524-4636

Disciplines

Medicine and Health Sciences

PubMedID

15472124

Department(s)

Department of Medicine, Hematology-Medical Oncology Division

Document Type

Article

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