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Review
. 2024 Jun 1;31(6):854-860.
doi: 10.5551/jat.RV22017. Epub 2024 Apr 13.

In the Beginning, Lipoproteins Cross the Endothelial Barrier

Ira J Goldberg  1 , Ainara G Cabodevilla  1 , Waqas Younis  1
Affiliations
Review

In the Beginning, Lipoproteins Cross the Endothelial Barrier

Ira J Goldberg et al. J Atheroscler Thromb. .

Abstract

Atherosclerosis begins with the infiltration of cholesterol-containing lipoproteins into the arterial wall. White blood cell (WBC)-associated inflammation follows. Despite decades of research using genetic and pharmacologic methods to alter WBC function, in humans, the most effective method to prevent the initiation and progression of disease remains low-density lipoprotein (LDL) reduction. However, additional approaches to reducing cardiovascular disease would be useful as residual risk of events continues even with currently effective LDL-reducing treatments. Some of this residual risk may be due to vascular toxicity of triglyceride-rich lipoproteins (TRLs). Another option is that LDL transcytosis continues, albeit at reduced rates due to lower circulating levels of this lipoprotein. This review will address these two topics. The evidence that TRLs promote atherosclerosis and the processes that allow LDL and TRLs to be taken up by endothelial cells leading to their accumulation with the subendothelial space.

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Conflict of interest statement

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