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High-density lipoprotein of patients with Type 2 Diabetes Mellitus upregulates cyclooxgenase-2 expression and prostacyclin I-2 release in endothelial cells: relationship with HDL-associated sphingosine-1-phosphate
Tong, Xunliang1; Peng, Hui5; Liu, Donghui2,3,4; Ji, Liang2,3,4; Niu, Chenguang2,3,4; Ren, Jun6,7; Pan, Bing2,3,4; Hu, Jianying5; Zheng, Lemin2,3,4; Huang, Yining1
关键词Type 2 diabetes mellitus High-density lipoprotein Sphingosine-1-phosphate Cyclooxygenase-2 Prostacyclin I-2 Endothelial cells
刊名CARDIOVASCULAR DIABETOLOGY
2013-01-30
DOI10.1186/1475-2840-12-27
12
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Cardiac & Cardiovascular Systems ; Endocrinology & Metabolism
研究领域[WOS]Cardiovascular System & Cardiology ; Endocrinology & Metabolism
关键词[WOS]SPHINGOSINE 1-PHOSPHATE ; CHOLESTEROL EFFLUX ; MIGRATION ; ATHEROSCLEROSIS ; DYSLIPIDEMIA ; PROTECTION ; RECEPTORS ; GLYCATION ; DISEASE ; RISK
英文摘要

Background: Dysfunctional high-density lipoprotein (HDL) may have pro-inflammatory effects on the endothelial cells, which causes atherosclerosis in type 2 diabetes mellitus (T2DM). HDL is a major carrier of sphingosine-1-phosphate (S1P) in plasma while S1P exhibits multiple biological activities. However, potential role of HDL and S1P in T2DM remains unexplored. We hypothesized that diabetic HDL with higher contents of S1P exerts beneficial effects on the vascular system.

Methods: Subjects with T2DM with or without proved large arteries atherosclerosis and normal controls (n= 15 for each group) were recruited in the present study. HDL was isolated from the subjects by ultracentrifugation. The levels of HDL-associated S1P were determined by UPLC-MS/MS. The protective function of diabetic HDL and S1P was evaluated by measuring cyclooxygenase-2 (COX-2) expression and prostacyclin I-2 (PGI-2) release by human umbilical vein endothelial cells (HUVECs) using western blot and enzyme-linked immunosorbent assay (ELISA), respectively.

Results: The S1P levels in isolated HDL were significantly increased in T2DM subjects compared with controls (235.6 +/- 13.4 vs 195.0 +/- 6.4 ng/mg, P< 0.05). The diabetic HDL exerted greater protective effects on inducing COX-2 expression and PGI-2 release by HUVECs than those of control HDL (p < 0.05, p < 0.01, respectively). Pertussis toxin, a common inhibitor of G-couple protein receptors, and VPC 23019, an antagonist of S1P receptor 1 and 3 significantly attenuated HDL-induced COX-2 expression and PGI-2 release.

Conclusions: Diabetic HDL carries higher level of S1P compared with normal HDL, which has the potential to contribute to protective effects on endothelial cells by inducing COX-2 expression and PGI-2 release. These findings provide a new insight of S1P function in T2DM patients, possibly leading to a new therapeutic target.

语种英语
WOS记录号WOS:000316278600001
项目编号2008ZX09312-017 ; 2010CB912504 ; 2011CB503900 ; 30900595 ; 81170101 ; 30821001 ; 7102104 ; 7122106
资助机构National S&amp ; T Major Project of China ; "973" National ST Major Project ; National Natural Science Foundation of China ; Natural Science Foundation of Beijing, China
引用统计
被引频次:29[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/65277
专题北京大学口腔医学院_第三门诊部
北京大学基础医学院
北京大学第一临床医学院_神经内科
北京大学口腔医学院_综合治疗二科
作者单位1.Peking Univ, Hosp 1, Dept Neurol, Beijing 100034, Peoples R China
2.Peking Univ, Hlth Sci Ctr, Inst Cardiovasc Sci, Beijing 100191, Peoples R China
3.Peking Univ, Hlth Sci Ctr, Inst Syst Biomed, Sch Basic Med Sci, Beijing 100191, Peoples R China
4.Peking Univ, Hlth Sci Ctr, Key Lab Mol Cardiovasc Sci,Minist Educ,Minist Hlt, Key Lab Cardiovasc Mol Biol & Regulatory Peptides, Beijing 100191, Peoples R China
5.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China
6.Univ Wyoming, Coll Hlth Sci, Div Kinesiol & Hlth, Laramie, WY 82071 USA
7.Univ Wyoming, Coll Hlth Sci, Biomed Sci PhD Program, Laramie, WY 82071 USA
推荐引用方式
GB/T 7714
Tong, Xunliang,Peng, Hui,Liu, Donghui,et al. High-density lipoprotein of patients with Type 2 Diabetes Mellitus upregulates cyclooxgenase-2 expression and prostacyclin I-2 release in endothelial cells: relationship with HDL-associated sphingosine-1-phosphate[J]. CARDIOVASCULAR DIABETOLOGY,2013,12.
APA Tong, Xunliang.,Peng, Hui.,Liu, Donghui.,Ji, Liang.,Niu, Chenguang.,...&Huang, Yining.(2013).High-density lipoprotein of patients with Type 2 Diabetes Mellitus upregulates cyclooxgenase-2 expression and prostacyclin I-2 release in endothelial cells: relationship with HDL-associated sphingosine-1-phosphate.CARDIOVASCULAR DIABETOLOGY,12.
MLA Tong, Xunliang,et al."High-density lipoprotein of patients with Type 2 Diabetes Mellitus upregulates cyclooxgenase-2 expression and prostacyclin I-2 release in endothelial cells: relationship with HDL-associated sphingosine-1-phosphate".CARDIOVASCULAR DIABETOLOGY 12(2013).
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