Elevation of Plasma High-Density Lipoprotein Concentration Reduces Interleukin-1–Induced Expression of E-Selectin in an In Vivo Model of Acute Inflammation
| العنوان: | Elevation of Plasma High-Density Lipoprotein Concentration Reduces Interleukin-1–Induced Expression of E-Selectin in an In Vivo Model of Acute Inflammation |
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| المؤلفون: | Dorian O. Haskard, Lerch Peter, Claire J. Stocker, Arjuna Weerasinghe, Norman E. Miller, Gillian W. Cockerill, Tanya Y. Huehns |
| المصدر: | Circulation. 103:108-112 |
| بيانات النشر: | Ovid Technologies (Wolters Kluwer Health), 2001. |
| سنة النشر: | 2001 |
| مصطلحات موضوعية: | medicine.medical_specialty, Endothelium, Apolipoprotein B, Swine, Leukocyte adhesion molecule, Inflammation, In vivo, Physiology (medical), Internal medicine, E-selectin, medicine, Animals, Aorta, Cells, Cultured, Skin, Drug Carriers, Apolipoprotein A-I, biology, business.industry, Antibodies, Monoclonal, Interleukin, Flow Cytometry, Recombinant Proteins, Endothelial stem cell, Disease Models, Animal, medicine.anatomical_structure, Endocrinology, Organ Specificity, Acute Disease, biology.protein, Endothelium, Vascular, medicine.symptom, E-Selectin, Lipoproteins, HDL, Cardiology and Cardiovascular Medicine, business, Interleukin-1 |
| الوصف: | Background —Although there is strong evidence that plasma HDL levels correlate inversely with the incidence of coronary artery disease, the precise mechanism(s) for the protective effect of HDLs remains unclear. We recently showed that HDLs inhibit endothelial cell expression of cytokine-induced leukocyte adhesion molecules in vitro. Our study therefore sought to test the hypothesis that elevating the level of circulating HDLs would inhibit endothelial cell activation in vivo. Methods and Results —We used a porcine model of inflammation previously established in our laboratory, in which the level of vascular endothelial cell expression of E-selectin in interleukin (IL)-1α–induced skin lesions was measured by the uptake of a radiolabeled anti–E-selectin antibody (1.2B6). Porcine plasma HDL levels were elevated by use of a bolus injection of reconstituted discoidal HDL (recHDL). These particles resemble nascent HDL particles in shape and contain apolipoprotein A-I as the sole protein and soybean phosphatidylcholine as the sole phospholipid. We found that recHDLs inhibited the expression of IL-1α–induced E-selectin by porcine aortic endothelial cells in vitro, confirming that the inhibitory effect is conserved with synthetic HDLs and demonstrating that the phenomenon is not restricted to human endothelial cells. In vivo, elevating the circulating level of HDLs ≈2-fold led to significant inhibition of basal and IL-1α–induced E-selectin expression by porcine microvascular endothelial cells. Conclusions —These observations demonstrate the potential anti-inflammatory action of HDLs and provide support for the further investigation of the mechanisms underlying the inhibitory effects of HDLs on endothelial cell activation. |
| تدمد: | 1524-4539 0009-7322 |
| DOI: | 10.1161/01.cir.103.1.108 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccb4b34a42a8d395123577d37cc61e5e https://doi.org/10.1161/01.cir.103.1.108 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....ccb4b34a42a8d395123577d37cc61e5e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15244539 00097322 |
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| DOI: | 10.1161/01.cir.103.1.108 |