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Review
. 2022:270:335-358.
doi: 10.1007/164_2020_364.

Smooth Muscle Cell-Proteoglycan-Lipoprotein Interactions as Drivers of Atherosclerosis

Sima Allahverdian  1 , Carleena Ortega  1 , Gordon A Francis  2
Affiliations
Review

Smooth Muscle Cell-Proteoglycan-Lipoprotein Interactions as Drivers of Atherosclerosis

Sima Allahverdian et al. Handb Exp Pharmacol. 2022.

Abstract

In humans, smooth muscle cells (SMCs) are the main cell type in the artery medial layer, in pre-atherosclerotic diffuse thickening of the intima, and in all stages of atherosclerotic lesion development. SMCs secrete the proteoglycans responsible for the initial binding and retention of atherogenic lipoproteins in the artery intima, with this retention driving foam cell formation and subsequent stages of atherosclerosis. In this chapter we review current knowledge of the extracellular matrix generated by SMCs in medial and intimal arterial layers, their relationship to atherosclerotic lesion development and stabilization, how these findings correlate with mouse models of atherosclerosis, and potential therapies aimed at targeting the SMC matrix-lipoprotein interaction for atherosclerosis prevention.

Keywords: Atherosclerosis; Biglycan; Diffuse intimal thickening; Extracellular matrix; Lipoprotein retention; Proteoglycans; Response to retention; Smooth muscle; Smooth muscle cells.

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