High Levels of Soluble Lectinlike Oxidized Low-Density Lipoprotein Receptor-1 Are Associated With Carotid Plaque Inflammation and Increased Risk of Ischemic Stroke

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Bibtex

@article{771a5373c723407f8b28018dd86c04ad,
title = "High Levels of Soluble Lectinlike Oxidized Low-Density Lipoprotein Receptor-1 Are Associated With Carotid Plaque Inflammation and Increased Risk of Ischemic Stroke",
abstract = "Background When the lectinlike oxidized low-density lipoprotein (ox LDL) receptor-1 ( LOX -1), a scavenger receptor for ox LDL , binds ox LDL , processes leading to endothelial dysfunction and inflammation are promoted. We aimed to study release mechanisms of LOX -1 and how circulating levels of soluble LOX -1 ( sLOX -1) relate to plaque inflammation and future risk for ischemic stroke. Methods and Results Endothelial cells and leukocytes were used to study release of sLOX -1. Plasma levels of sLOX -1 were determined in 4703 participants in the Malm{\"o} Diet and Cancer cohort. Incidence of ischemic stroke was monitored. For 202 patients undergoing carotid endarterectomy, levels of sLOX -1 were analyzed in plasma and plaque homogenates and related to plaque inflammation factors. Endothelial cells released sLOX -1 when exposed to ox LDL . A total of 257 subjects experienced stroke during a mean follow-up of 16.5 years. Subjects in the highest tertile of sLOX -1 had a stroke hazard ratio of 1.75 (95{\%} CI, 1.28-2.39) compared with those in the lowest tertile after adjusting for age and sex. The patients undergoing carotid endarterectomy had a significant association between plasma sLOX -1 and the plaque content of sLOX -1 ( r=0.209, P=0.004). Plaques with high levels of sLOX -1 had more ox LDL , proinflammatory cytokines, and matrix metalloproteinases. Conclusions Our findings demonstrate that ox LDL induces the release of sLOX -1 from endothelial cells and that circulating levels of sLOX -1 correlate with carotid plaque inflammation and risk for ischemic stroke. These observations provide clinical support to experimental studies implicating LOX -1 in atherosclerosis and its possible role as target for cardiovascular intervention.",
keywords = "atherosclerosis, ischemic stroke, lectinlike oxidized low‐density lipoprotein receptor‐1, soluble lectinlike oxidized low‐density lipoprotein receptor‐1",
author = "Hanna Markstad and Andreas Edsfeldt and {Yao Mattison}, Ingrid and Eva Bengtsson and Pratibha Singh and Michele Cavalera and Giuseppe Asciutto and Harry Bj{\"o}rkbacka and Fredrikson, {Gunilla Nordin} and Nuno Dias and Petr Volkov and Marju Orho-Melander and Jan Nilsson and Gunnar Engstr{\"o}m and Isabel Gon{\cc}alves",
year = "2019",
month = "2",
day = "19",
doi = "10.1161/JAHA.118.009874",
language = "English",
volume = "8",
journal = "Journal of the American Heart Association",
issn = "2047-9980",
publisher = "Wiley-Blackwell",
number = "4",

}