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Wang Z, Zhao X, Zhao G, Guo Y, Lu H, Mu W, Zhong J, Garcia-Barrio M, Zhang J, Chen YE, Chang L. PRDM16 deficiency in vascular smooth muscle cells aggravates abdominal aortic aneurysm. JCI Insight 2023; 8:e167041. [PMID: 37079380 PMCID: PMC10393233 DOI: 10.1172/jci.insight.167041] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 04/19/2023] [Indexed: 04/21/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) is usually asymptomatic until life-threatening complications occur, predominantly involving aortic rupture. Currently, no drug-based treatments are available, primarily due to limited understanding of AAA pathogenesis. The transcriptional regulator PR domain-containing protein 16 (PRDM16) is highly expressed in the aorta, but its functions in the aorta are largely unknown. By RNA-seq analysis, we found that vascular smooth muscle cell-specific (VSMC-specific) Prdm16-knockout (Prdm16SMKO) mice already showed extensive changes in the expression of genes associated with extracellular matrix (ECM) remodeling and inflammation in the abdominal aorta under normal housing conditions without any pathological stimuli. Human AAA lesions displayed lower PRDM16 expression. Periadventitial elastase application to the suprarenal region of the abdominal aorta aggravated AAA formation in Prdm16SMKO mice. During AAA development, VSMCs undergo apoptosis because of both intrinsic and environmental changes, including inflammation and ECM remodeling. Prdm16 deficiency promoted inflammation and apoptosis in VSMCs. A disintegrin and metalloproteinase 12 (ADAM12) is a gelatinase that can degrade various ECMs. We found that ADAM12 is a target of transcriptional repression by PRDM16. Adam12 knockdown reversed VSMC apoptosis induced by Prdm16 deficiency. Our study demonstrated that PRDM16 deficiency in VSMCs promoted ADAM12 expression and aggravates AAA formation, which may provide potential targets for AAA treatment.
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Affiliation(s)
- Zhenguo Wang
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Xiangjie Zhao
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Key Laboratory of Animal Cellular and Genetics, Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, P.R. China
| | - Guizhen Zhao
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Yanhong Guo
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Haocheng Lu
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Pharmacology, Southern University of Science and Technology, Shenzhen, P.R. China
| | - Wenjuan Mu
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Juan Zhong
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Minerva Garcia-Barrio
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Jifeng Zhang
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Y. Eugene Chen
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Lin Chang
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, USA
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Liu Y, Croft KD, Mori TA, Gaspari TA, Kemp-Harper BK, Ward NC. Long-term dietary nitrate supplementation slows the progression of established atherosclerosis in ApoE -/- mice fed a high fat diet. Eur J Nutr 2023; 62:1845-1857. [PMID: 36853380 PMCID: PMC10195750 DOI: 10.1007/s00394-023-03127-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/20/2023] [Indexed: 03/01/2023]
Abstract
BACKGROUND AND AIMS Atherosclerosis is associated with a reduction in the bioavailability and/or bioactivity of endogenous nitric oxide (NO). Dietary nitrate has been proposed as an alternate source when endogenous NO production is reduced. Our previous study demonstrated a protective effect of dietary nitrate on the development of atherosclerosis in the apoE-/- mouse model. However most patients do not present clinically until well after the disease is established. The aims of this study were to determine whether chronic dietary nitrate supplementation can prevent or reverse the progression of atherosclerosis after disease is already established, as well as to explore the underlying mechanism of these cardiovascular protective effects. METHODS 60 apoE-/- mice were given a high fat diet (HFD) for 12 weeks to allow for the development of atherosclerosis. The mice were then randomized to (i) control group (HFD + 1 mmol/kg/day NaCl), (ii) moderate-dose group (HFD +1 mmol/kg/day NaNO3), or (iii) high-dose group (HFD + 10 mmol/kg/day NaNO3) (20/group) for a further 12 weeks. A group of apoE-/- mice (n = 20) consumed a normal laboratory chow diet for 24 weeks and were included as a reference group. RESULTS Long-term supplementation with high dose nitrate resulted in ~ 50% reduction in plaque lesion area. Collagen expression and smooth muscle accumulation were increased, and lipid deposition and macrophage accumulation were reduced within atherosclerotic plaques of mice supplemented with high dose nitrate. These changes were associated with an increase in nitrite reductase as well as activation of the endogenous eNOS-NO pathway. CONCLUSION Long-term high dose nitrate significantly attenuated the progression of established atherosclerosis in the apoE-/- mice fed a HFD. This appears to be mediated in part through a XOR-dependent reduction of nitrate to NO, as well as enhanced eNOS activation via increased Akt and eNOS phosphorylation.
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Affiliation(s)
- Yang Liu
- School of Biomedical Sciences, University of Western Australia, Perth, WA Australia
| | - Kevin D. Croft
- School of Biomedical Sciences, University of Western Australia, Perth, WA Australia
| | - Trevor A. Mori
- Medical School, University of Western Australia, Perth, WA Australia
| | - Tracey A. Gaspari
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC Australia
| | - Barbara K. Kemp-Harper
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC Australia
| | - Natalie C. Ward
- Medical School, University of Western Australia, Perth, WA Australia
- Dobney Hypertension Centre, Medical School, University of Western Australia, G.P.O Box X2213, Perth, WA 6847 Australia
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3
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Zhu J, Wang L, Guo Z, Zhang T, Zhang P. Transcriptome analysis of intestine from alk-SMase knockout mice reveals the effect of alk-SMase. Cancer Cell Int 2022; 22:344. [DOI: 10.1186/s12935-022-02764-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 10/11/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Objective
Intestinal alkaline sphingomyelinase (alk-SMase) generates ceramide and inactivates platelet-activating factor associated with digestion and inhibition of cancer. There is few study to analyze the correlated function and characterize the genes related to alk-SMase comprehensively. We characterised transcriptome landscapes of intestine tissues from alk-SMase knockout (KO) mice aiming to identify novel associated genes and research targets.
Methods
We performed the high-resolution RNA sequencing of alk-SMase KO mice and compared them to wild type (WT) mice. Differentially expressed genes (DEGs) for the training group were screened. Functional enrichment analysis of the DEGs between KO mice and WT mice was implemented using the Database for Annotation, Visualization and Integrated Discovery (DAVID). An integrated protein–protein interaction (PPI) and Kyoto Encyclopedia of Genes and Genomes (KEGG) network was chose to study the relationship of differentially expressed gene. Moreover, quantitative real-time polymerase chain reaction (qPCR) was further used to validate the accuracy of RNA-seq technology.
Results
Our RNA-seq data found 97 differentially expressed mRNAs between the WT mice and alk-SMase gene NPP7 KO mice, in which 32 were significantly up-regulated and 65 were down-regulated, including protein coding genes, non-coding RNAs. Notably, the results of gene ontology functional enrichment analysis indicated that DEGs were functionally associated with the immune response, regulation of cell proliferation and development related terms. Additionally, an integrated network analysis was shown that some modules was significantly related to alk-SMase and with accordance of previously results. We chose 6 of these genes randomly were validated the accuracy of RNA-seq technology using qPCR and 2 genes showed difference significantly (P < 0.05).
Conclusions
We investigated the potential biological significant of alk-SMase with high resolution genome-wide transcriptome of alk-SMase knockout mice. The results revealed new insight into the functional modules related to alk-SMase was involved in the intestinal related diseases.
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The proteasome activator REGγ promotes diabetic endothelial impairment by inhibiting HMGA2-GLUT1 pathway. Transl Res 2022; 246:33-48. [PMID: 35367424 DOI: 10.1016/j.trsl.2022.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 11/22/2022]
Abstract
Diabetic vascular endothelial impairment is one of the main causes of death in patients with diabetes lacking adequately defined mechanisms or effective treatments. REGγ, the 11S proteasome activator known to promote the degradation of cellular proteins in a ubiquitin- and ATP-independent manner, emerges as a new regulator in the cardiovascular system. Here, we found that REGγ was upregulated in streptozocin (STZ)-induced diabetic mouse aortic endothelium in vivo and high glucose (HG)-treated vascular endothelial cells (ECs) in vitro. REGγ deficiency ameliorated endothelial impairment in STZ-induced diabetic mice by protecting against a decline in cellular glucose uptake and associated vascular ECs dysfunction by suppressing high mobility group AT-hook 2 (HMGA2) decay. Mechanically, REGγ interacted with and degraded the transcription factor HMGA2 directly, leading to decreased HMGA2 transcriptional activity, subsequently lowered expression of glucose transporter type 1 (GLUT1), and reduced cellular glucose uptake, vascular endothelial dysfunction, and impaired diabetic endothelium. Ablation of endogenous GLUT1 or HMGA2 or overexpressing exogenous HMGA2 in vascular ECs significantly blocked or reestablished the REGγ-dependent action on cellular glucose uptake and vascular endothelial functions of HG stimulation in vitro. Furthermore, exogenously introducing HMGA2 improved diabetic mice endothelial impairment features caused by REGγ in vivo, thereby substantiating a REGγ-HMGA2-GLUT1 pathway in diabetic endothelial impairment. Our findings indicate that modulating REGγ-proteasome activity may be a potential therapeutic approach for diabetic disorders with endothelial impairment.
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Liu M, Xu K, Saaoud F, Shao Y, Zhang R, Lu Y, Sun Y, Drummer C, Li L, Wu S, Kunapuli SP, Criner GJ, Sun J, Shan H, Jiang X, Wang H, Yang X. 29 m 6A-RNA Methylation (Epitranscriptomic) Regulators Are Regulated in 41 Diseases including Atherosclerosis and Tumors Potentially via ROS Regulation - 102 Transcriptomic Dataset Analyses. J Immunol Res 2022; 2022:1433323. [PMID: 35211628 PMCID: PMC8863469 DOI: 10.1155/2022/1433323] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/31/2021] [Indexed: 12/12/2022] Open
Abstract
We performed a database mining on 102 transcriptomic datasets for the expressions of 29 m6A-RNA methylation (epitranscriptomic) regulators (m6A-RMRs) in 41 diseases and cancers and made significant findings: (1) a few m6A-RMRs were upregulated; and most m6A-RMRs were downregulated in sepsis, acute respiratory distress syndrome, shock, and trauma; (2) half of 29 m6A-RMRs were downregulated in atherosclerosis; (3) inflammatory bowel disease and rheumatoid arthritis modulated m6A-RMRs more than lupus and psoriasis; (4) some organ failures shared eight upregulated m6A-RMRs; end-stage renal failure (ESRF) downregulated 85% of m6A-RMRs; (5) Middle-East respiratory syndrome coronavirus infections modulated m6A-RMRs the most among viral infections; (6) proinflammatory oxPAPC modulated m6A-RMRs more than DAMP stimulation including LPS and oxLDL; (7) upregulated m6A-RMRs were more than downregulated m6A-RMRs in cancer types; five types of cancers upregulated ≥10 m6A-RMRs; (8) proinflammatory M1 macrophages upregulated seven m6A-RMRs; (9) 86% of m6A-RMRs were differentially expressed in the six clusters of CD4+Foxp3+ immunosuppressive Treg, and 8 out of 12 Treg signatures regulated m6A-RMRs; (10) immune checkpoint receptors TIM3, TIGIT, PD-L2, and CTLA4 modulated m6A-RMRs, and inhibition of CD40 upregulated m6A-RMRs; (11) cytokines and interferons modulated m6A-RMRs; (12) NF-κB and JAK/STAT pathways upregulated more than downregulated m6A-RMRs whereas TP53, PTEN, and APC did the opposite; (13) methionine-homocysteine-methyl cycle enzyme Mthfd1 downregulated more than upregulated m6A-RMRs; (14) m6A writer RBM15 and one m6A eraser FTO, H3K4 methyltransferase MLL1, and DNA methyltransferase, DNMT1, regulated m6A-RMRs; and (15) 40 out of 165 ROS regulators were modulated by m6A eraser FTO and two m6A writers METTL3 and WTAP. Our findings shed new light on the functions of upregulated m6A-RMRs in 41 diseases and cancers, nine cellular and molecular mechanisms, novel therapeutic targets for inflammatory disorders, metabolic cardiovascular diseases, autoimmune diseases, organ failures, and cancers.
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Affiliation(s)
- Ming Liu
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Department of Cell Biology and Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Keman Xu
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Fatma Saaoud
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Ying Shao
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Ruijing Zhang
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Department of Nephrology, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Yifan Lu
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Yu Sun
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Charles Drummer
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Li Li
- Department of Cell Biology and Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Sheng Wu
- Metabolic Disease Research; Inflammation, Translational & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Satya P. Kunapuli
- Thrombosis Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Gerard J. Criner
- Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Jianxin Sun
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Huimin Shan
- Metabolic Disease Research; Inflammation, Translational & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Xiaohua Jiang
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Metabolic Disease Research; Inflammation, Translational & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Hong Wang
- Metabolic Disease Research; Inflammation, Translational & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Xiaofeng Yang
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Metabolic Disease Research; Inflammation, Translational & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Thrombosis Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
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6
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Kotlyarov S. Diversity of Lipid Function in Atherogenesis: A Focus on Endothelial Mechanobiology. Int J Mol Sci 2021; 22:11545. [PMID: 34768974 PMCID: PMC8584259 DOI: 10.3390/ijms222111545] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/12/2021] [Accepted: 10/21/2021] [Indexed: 12/12/2022] Open
Abstract
Atherosclerosis is one of the most important problems in modern medicine. Its high prevalence and social significance determine the need for a better understanding of the mechanisms of the disease's development and progression. Lipid metabolism and its disorders are one of the key links in the pathogenesis of atherosclerosis. Lipids are involved in many processes, including those related to the mechanoreception of endothelial cells. The multifaceted role of lipids in endothelial mechanobiology and mechanisms of atherogenesis are discussed in this review. Endothelium is involved in ensuring adequate vascular hemodynamics, and changes in blood flow characteristics are detected by endothelial cells and affect their structure and function.
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Affiliation(s)
- Stanislav Kotlyarov
- Department of Nursing, Ryazan State Medical University, 390026 Ryazan, Russia
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7
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Liu M, Wu N, Xu K, Saaoud F, Vasilopoulos E, Shao Y, Zhang R, Wang J, Shen H, Yang WY, Lu Y, Sun Y, Drummer C, Liu L, Li L, Hu W, Yu J, Praticò D, Sun J, Jiang X, Wang H, Yang X. Organelle Crosstalk Regulators Are Regulated in Diseases, Tumors, and Regulatory T Cells: Novel Classification of Organelle Crosstalk Regulators. Front Cardiovasc Med 2021; 8:713170. [PMID: 34368262 PMCID: PMC8339352 DOI: 10.3389/fcvm.2021.713170] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/14/2021] [Indexed: 12/15/2022] Open
Abstract
To examine whether the expressions of 260 organelle crosstalk regulators (OCRGs) in 16 functional groups are modulated in 23 diseases and 28 tumors, we performed extensive -omics data mining analyses and made a set of significant findings: (1) the ratios of upregulated vs. downregulated OCRGs are 1:2.8 in acute inflammations, 1:1 in metabolic diseases, 1:1.2 in autoimmune diseases, and 1:3.8 in organ failures; (2) sepsis and trauma-upregulated OCRG groups such as vesicle, mitochondrial (MT) fission, and mitophagy but not others, are termed as the cell crisis-handling OCRGs. Similarly, sepsis and trauma plus organ failures upregulated seven OCRG groups including vesicle, MT fission, mitophagy, sarcoplasmic reticulum–MT, MT fusion, autophagosome–lysosome fusion, and autophagosome/endosome–lysosome fusion, classified as the cell failure-handling OCRGs; (3) suppression of autophagosome–lysosome fusion in endothelial and epithelial cells is required for viral replications, which classify this decreased group as the viral replication-suppressed OCRGs; (4) pro-atherogenic damage-associated molecular patterns (DAMPs) such as oxidized low-density lipoprotein (oxLDL), lipopolysaccharide (LPS), oxidized-1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine (oxPAPC), and interferons (IFNs) totally upregulated 33 OCRGs in endothelial cells (ECs) including vesicle, MT fission, mitophagy, MT fusion, endoplasmic reticulum (ER)–MT contact, ER– plasma membrane (PM) junction, autophagosome/endosome–lysosome fusion, sarcoplasmic reticulum–MT, autophagosome–endosome/lysosome fusion, and ER–Golgi complex (GC) interaction as the 10 EC-activation/inflammation-promoting OCRG groups; (5) the expression of OCRGs is upregulated more than downregulated in regulatory T cells (Tregs) from the lymph nodes, spleen, peripheral blood, intestine, and brown adipose tissue in comparison with that of CD4+CD25− T effector controls; (6) toll-like receptors (TLRs), reactive oxygen species (ROS) regulator nuclear factor erythroid 2-related factor 2 (Nrf2), and inflammasome-activated regulator caspase-1 regulated the expressions of OCRGs in diseases, virus-infected cells, and pro-atherogenic DAMP-treated ECs; (7) OCRG expressions are significantly modulated in all the 28 cancer datasets, and the upregulated OCRGs are correlated with tumor immune infiltrates in some tumors; (8) tumor promoter factor IKK2 and tumor suppressor Tp53 significantly modulate the expressions of OCRGs. Our findings provide novel insights on the roles of upregulated OCRGs in the pathogenesis of inflammatory diseases and cancers, and novel pathways for the future therapeutic interventions for inflammations, sepsis, trauma, organ failures, autoimmune diseases, metabolic cardiovascular diseases (CVDs), and cancers.
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Affiliation(s)
- Ming Liu
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States.,Department of Cell Biology and Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, China
| | - Na Wu
- Departments of Endocrinology and Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Keman Xu
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Fatma Saaoud
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Eleni Vasilopoulos
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Ying Shao
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Ruijing Zhang
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States.,Department of Nephrology, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan, China
| | - Jirong Wang
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States.,Department of Cardiology, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan, China
| | - Haitao Shen
- Departments of Endocrinology and Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | | | - Yifan Lu
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Yu Sun
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Charles Drummer
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Lu Liu
- Metabolic Disease Research, Inflammation, Translational & Clinical Lung Research, Thrombosis Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Li Li
- Department of Cell Biology and Genetics, School of Basic Medical Science, Shanxi Medical University, Taiyuan, China
| | - Wenhui Hu
- Metabolic Disease Research, Inflammation, Translational & Clinical Lung Research, Thrombosis Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Jun Yu
- Metabolic Disease Research, Inflammation, Translational & Clinical Lung Research, Thrombosis Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Domenico Praticò
- Alzheimer's Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Jianxin Sun
- Department of Medicine, Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, United States
| | - Xiaohua Jiang
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States.,Metabolic Disease Research, Inflammation, Translational & Clinical Lung Research, Thrombosis Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Hong Wang
- Metabolic Disease Research, Inflammation, Translational & Clinical Lung Research, Thrombosis Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Xiaofeng Yang
- Centers for Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States.,Metabolic Disease Research, Inflammation, Translational & Clinical Lung Research, Thrombosis Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
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8
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Shao Y, Saredy J, Xu K, Sun Y, Saaoud F, Drummer C, Lu Y, Luo JJ, Lopez-Pastrana J, Choi ET, Jiang X, Wang H, Yang X. Endothelial Immunity Trained by Coronavirus Infections, DAMP Stimulations and Regulated by Anti-Oxidant NRF2 May Contribute to Inflammations, Myelopoiesis, COVID-19 Cytokine Storms and Thromboembolism. Front Immunol 2021; 12:653110. [PMID: 34248940 PMCID: PMC8269631 DOI: 10.3389/fimmu.2021.653110] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 05/12/2021] [Indexed: 12/13/2022] Open
Abstract
To characterize transcriptomic changes in endothelial cells (ECs) infected by coronaviruses, and stimulated by DAMPs, the expressions of 1311 innate immune regulatomic genes (IGs) were examined in 28 EC microarray datasets with 7 monocyte datasets as controls. We made the following findings: The majority of IGs are upregulated in the first 12 hours post-infection (PI), and maintained until 48 hours PI in human microvascular EC infected by middle east respiratory syndrome-coronavirus (MERS-CoV) (an EC model for COVID-19). The expressions of IGs are modulated in 21 human EC transcriptomic datasets by various PAMPs/DAMPs, including LPS, LPC, shear stress, hyperlipidemia and oxLDL. Upregulation of many IGs such as nucleic acid sensors are shared between ECs infected by MERS-CoV and those stimulated by PAMPs and DAMPs. Human heart EC and mouse aortic EC express all four types of coronavirus receptors such as ANPEP, CEACAM1, ACE2, DPP4 and virus entry facilitator TMPRSS2 (heart EC); most of coronavirus replication-transcription protein complexes are expressed in HMEC, which contribute to viremia, thromboembolism, and cardiovascular comorbidities of COVID-19. ECs have novel trained immunity (TI), in which subsequent inflammation is enhanced. Upregulated proinflammatory cytokines such as TNFα, IL6, CSF1 and CSF3 and TI marker IL-32 as well as TI metabolic enzymes and epigenetic enzymes indicate TI function in HMEC infected by MERS-CoV, which may drive cytokine storms. Upregulated CSF1 and CSF3 demonstrate a novel function of ECs in promoting myelopoiesis. Mechanistically, the ER stress and ROS, together with decreased mitochondrial OXPHOS complexes, facilitate a proinflammatory response and TI. Additionally, an increase of the regulators of mitotic catastrophe cell death, apoptosis, ferroptosis, inflammasomes-driven pyroptosis in ECs infected with MERS-CoV and the upregulation of pro-thrombogenic factors increase thromboembolism potential. Finally, NRF2-suppressed ROS regulate innate immune responses, TI, thrombosis, EC inflammation and death. These transcriptomic results provide novel insights on the roles of ECs in coronavirus infections such as COVID-19, cardiovascular diseases (CVD), inflammation, transplantation, autoimmune disease and cancers.
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Affiliation(s)
- Ying Shao
- Centers of Cardiovascular Research, Inflammation, Translational & Clinical Lung Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Jason Saredy
- Metabolic Disease Research, Thrombosis Research, Departments of Pharmacology, Microbiology and Immunology, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Keman Xu
- Centers of Cardiovascular Research, Inflammation, Translational & Clinical Lung Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Yu Sun
- Centers of Cardiovascular Research, Inflammation, Translational & Clinical Lung Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Fatma Saaoud
- Centers of Cardiovascular Research, Inflammation, Translational & Clinical Lung Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Charles Drummer
- Centers of Cardiovascular Research, Inflammation, Translational & Clinical Lung Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Yifan Lu
- Centers of Cardiovascular Research, Inflammation, Translational & Clinical Lung Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Jin J Luo
- Neurology, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Jahaira Lopez-Pastrana
- Psychiatry and Behavioral Science, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Eric T Choi
- Surgery, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Xiaohua Jiang
- Centers of Cardiovascular Research, Inflammation, Translational & Clinical Lung Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States.,Metabolic Disease Research, Thrombosis Research, Departments of Pharmacology, Microbiology and Immunology, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Hong Wang
- Metabolic Disease Research, Thrombosis Research, Departments of Pharmacology, Microbiology and Immunology, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
| | - Xiaofeng Yang
- Centers of Cardiovascular Research, Inflammation, Translational & Clinical Lung Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States.,Metabolic Disease Research, Thrombosis Research, Departments of Pharmacology, Microbiology and Immunology, Temple University Lewis Katz School of Medicine, Philadelphia, PA, United States
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9
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Fledderus J, Vanchin B, Rots MG, Krenning G. The Endothelium as a Target for Anti-Atherogenic Therapy: A Focus on the Epigenetic Enzymes EZH2 and SIRT1. J Pers Med 2021; 11:jpm11020103. [PMID: 33562658 PMCID: PMC7915331 DOI: 10.3390/jpm11020103] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 12/11/2022] Open
Abstract
Endothelial cell inflammatory activation and dysfunction are key events in the pathophysiology of atherosclerosis, and are associated with an elevated risk of cardiovascular events. Yet, therapies specifically targeting the endothelium and atherosclerosis are lacking. Here, we review how endothelial behaviour affects atherogenesis and pose that the endothelium may be an efficacious cellular target for antiatherogenic therapies. We discuss the contribution of endothelial inflammatory activation and dysfunction to atherogenesis and postulate that the dysregulation of specific epigenetic enzymes, EZH2 and SIRT1, aggravate endothelial dysfunction in a pleiotropic fashion. Moreover, we propose that commercially available drugs are available to clinically explore this postulation.
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Affiliation(s)
- Jolien Fledderus
- Medical Biology Section, Laboratory for Cardiovascular Regenerative Medicine, Department Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713 GZ Groningen, The Netherlands; (J.F.); (B.V.)
| | - Byambasuren Vanchin
- Medical Biology Section, Laboratory for Cardiovascular Regenerative Medicine, Department Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713 GZ Groningen, The Netherlands; (J.F.); (B.V.)
- Department Cardiology, School of Medicine, Mongolian National University of Medical Sciences, Jamyan St 3, Ulaanbaatar 14210, Mongolia
| | - Marianne G. Rots
- Epigenetic Editing, Medical Biology Section, Department Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713 GZ Groningen, The Netherlands;
| | - Guido Krenning
- Medical Biology Section, Laboratory for Cardiovascular Regenerative Medicine, Department Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713 GZ Groningen, The Netherlands; (J.F.); (B.V.)
- Correspondence: ; Tel.: +31-50-361-8043; Fax: +31-50-361-9911
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10
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Mendelian randomization while jointly modeling cis genetics identifies causal relationships between gene expression and lipids. Nat Commun 2020; 11:4930. [PMID: 33004804 PMCID: PMC7530717 DOI: 10.1038/s41467-020-18716-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/08/2020] [Indexed: 12/11/2022] Open
Abstract
Inference of causality between gene expression and complex traits using Mendelian randomization (MR) is confounded by pleiotropy and linkage disequilibrium (LD) of gene-expression quantitative trait loci (eQTL). Here, we propose an MR method, MR-link, that accounts for unobserved pleiotropy and LD by leveraging information from individual-level data, even when only one eQTL variant is present. In simulations, MR-link shows false-positive rates close to expectation (median 0.05) and high power (up to 0.89), outperforming all other tested MR methods and coloc. Application of MR-link to low-density lipoprotein cholesterol (LDL-C) measurements in 12,449 individuals with expression and protein QTL summary statistics from blood and liver identifies 25 genes causally linked to LDL-C. These include the known SORT1 and ApoE genes as well as PVRL2, located in the APOE locus, for which a causal role in liver was not known. Our results showcase the strength of MR-link for transcriptome-wide causal inferences. Mendelian randomization is a useful tool to infer causal relationships between traits, but can be confounded by the presence of pleiotropy. Here, the authors have developed MR-link, a Mendelian randomization method which accounts for unobserved pleiotropy and linkage disequilibrium between instrumental variables.
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11
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Shivshankar P, Li YD, Mueller-Ortiz SL, Wetsel RA. In response to complement anaphylatoxin peptides C3a and C5a, human vascular endothelial cells migrate and mediate the activation of B-cells and polarization of T-cells. FASEB J 2020; 34:7540-7560. [PMID: 32301538 DOI: 10.1096/fj.201902397r] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 03/11/2020] [Accepted: 03/22/2020] [Indexed: 12/19/2022]
Abstract
The vascular endothelium has been discovered in the past several years to be important in shaping the cellular immune response. During the immune response the vascular endothelium is constantly perturbed by biologically potent molecules, including the complement activation peptides, C3a and C5a. Despite the importance of C3a and C5a in inflammation and immunity, their role in modulating lymphocyte function via activation of vascular endothelial cells is unknown. Accordingly, we investigated the regulated expression of the C3a and C5a receptors (complement anaphylatoxin C3a receptor [C3aR] and complement anaphylatoxin C5a receptor 1 [C5aR1]) on human umbilical vascular endothelial cells (HUVECs) and examined how C3a or C5a activation of HUVECs affects the activation and polarization of lymphatic cells. Our findings demonstrated that C3a and C5a increase C3aR and C5aR1 expression by HUVECs as well as directing their cellular transmigration and spreading through transwell filters. Moreover, C3a- or C5a-stimulated endothelial cells: (1) caused activation of B-lymphoblasts with significant increase in Fas Ligand (CD95L) (FasL), CD69, and IL-R1 expression, and (2) skewed T-lymphoblast cells toward a Th1 subtype, (CD4+ /CCR5+ ) that correlated with significant increase of IFN-γ. Collectively, these data indicate that C3a and C5a signaling is important in the activation and polarization of lymphocytes as they traffic through the vascular endothelium during the immune response.
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Affiliation(s)
- Pooja Shivshankar
- Research Center for Immunology and Autoimmune Diseases, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center, Houston, TX, USA
| | - Yi-Dong Li
- Research Center for Immunology and Autoimmune Diseases, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center, Houston, TX, USA
| | - Stacey L Mueller-Ortiz
- Research Center for Immunology and Autoimmune Diseases, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center, Houston, TX, USA
| | - Rick A Wetsel
- Research Center for Immunology and Autoimmune Diseases, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center, Houston, TX, USA.,Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center, Houston, TX, USA
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12
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Koh Y, Li S, Chen P, Wu J, Kalyanam N, Ho C, Pan M. Prevention of Vascular Inflammation by Pterostilbene via Trimethylamine‐
N
‐Oxide Reduction and Mechanism of Microbiota Regulation. Mol Nutr Food Res 2019; 63:e1900514. [DOI: 10.1002/mnfr.201900514] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/17/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Yen‐Chun Koh
- Institute of Food Sciences and TechnologyNational Taiwan University Taipei 106 Taiwan
| | - Shiming Li
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive UtilizationHubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie MountainsHuanggang Normal University Huanggang 438000 Hubei China
| | - Pei‐Yu Chen
- Institute of Food Sciences and TechnologyNational Taiwan University Taipei 106 Taiwan
| | - Jia‐Ching Wu
- Institute of Food Sciences and TechnologyNational Taiwan University Taipei 106 Taiwan
| | | | - Chi‐Tang Ho
- Department of Food ScienceRutgers University New Brunswick NJ 08901 USA
| | - Min‐Hsiung Pan
- Institute of Food Sciences and TechnologyNational Taiwan University Taipei 106 Taiwan
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive UtilizationHubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie MountainsHuanggang Normal University Huanggang 438000 Hubei China
- Department of Medical ResearchChina Medical University Hospital, China Medical University Taichung 40402 Taiwan
- Department of Health and Nutrition BiotechnologyAsia University Taichung 41354 Taiwan
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13
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Affiliation(s)
- Jacqueline S Dron
- From the Department of Biochemistry (J.S.D., J.L., R.A.H.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Robarts Research Institute (J.S.D., J.L., R.A.H.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Julieta Lazarte
- From the Department of Biochemistry (J.S.D., J.L., R.A.H.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Robarts Research Institute (J.S.D., J.L., R.A.H.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Department of Medicine (J.L., R.A.H.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Robert A Hegele
- From the Department of Biochemistry (J.S.D., J.L., R.A.H.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Robarts Research Institute (J.S.D., J.L., R.A.H.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Department of Medicine (J.L., R.A.H.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
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14
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Williams JW, Giannarelli C, Rahman A, Randolph GJ, Kovacic JC. Macrophage Biology, Classification, and Phenotype in Cardiovascular Disease: JACC Macrophage in CVD Series (Part 1). J Am Coll Cardiol 2018; 72:2166-2180. [PMID: 30360826 PMCID: PMC6209330 DOI: 10.1016/j.jacc.2018.08.2148] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 07/12/2018] [Accepted: 08/03/2018] [Indexed: 12/30/2022]
Abstract
Macrophages represent one of the most numerous and diverse leukocyte types in the body. Furthermore, they are important regulators and promoters of many cardiovascular disease programs. Their functions range from sensing pathogens to digesting cell debris, modulating inflammation, and producing key cytokines and other regulatory factors throughout the body. Macrophage research has undergone a renaissance in recent years, which has propelled a newfound interest in their heterogeneity as well as a new understanding of ontological differences in their development. In addition, recent technological advances such as single-cell mass-cytometry by time-of-flight have enabled phenotype and functional analyses of individual immune myeloid cells, including macrophages, at unprecedented resolution. In this Part 1 of a 4-part review series covering the macrophage in cardiovascular disease, we focus on the basic principles of macrophage development, heterogeneity, phenotype, tissue-specific differentiation, and functionality as a basis to understand their role in cardiovascular disease.
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Affiliation(s)
- Jesse W Williams
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| | - Chiara Giannarelli
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York; The Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York; Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Adeeb Rahman
- The Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York; Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York; Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Gwendalyn J Randolph
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| | - Jason C Kovacic
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York.
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15
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Li Q, Su J, Jin SJ, Wei W, Cong XD, Li XX, Xu M. Argirein alleviates vascular endothelial insulin resistance through suppressing the activation of Nox4-dependent O 2- production in diabetic rats. Free Radic Biol Med 2018; 121:169-179. [PMID: 29709706 DOI: 10.1016/j.freeradbiomed.2018.04.573] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/18/2018] [Accepted: 04/24/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Insulin resistance in endothelial cells contributes to the development of cardiovascular disease in type 2 diabetes mellitus (T2DM). Therefore, there are great potential clinical implications in developing pharmacological interventions targeting endothelial insulin resistance. Our previous studies indicated that argirein which was developed by combining rhein with L-arginine by a hydrogen bond, could substantially relieved stress related exacerbation of cardiac failure and alleviated cardiac dysfunction in T2DM, which was associated with suppressing NADPH oxidase activity. However, it is unclear whether argirein treatment attenuates the vascular lesion and dysfunction in T2DM and its underlying mechanisms. METHODS AND RESULTS The rat aortic endothelial cells (RAECs) were used to treat with palmitic acid (PA), a most common saturated free fatty acid, which could induce insulin resistance. It was showed that argirein increased glucose uptake and glucose transporter-4 (Glut4) expression and reversed the phosphorylation of IRS-1-ser307 and AKT-ser473, consequently resulting in the increase of the production of eNOS and NO in PA-induced RAECs. We further found that argirein blocked the Nox4-dependent superoxide (O2-.) generation, which regulated glucose metabolism in RAECs during PA stimulation. In vitro, argirein increased the release of endothelial NO to relieve the vasodilatory response to acetylcholine and insulin, and restored the expression of Nox4 and pIRS-1-ser307 in the aorta endothelium of high-fat diet (HFD)-fed rats following an injection of streptozocin (STZ). CONCLUSION These results suggested that argirein could improve endothelial insulin resistance which was attributed to inhibiting Nox4-dependent redox signaling in RAECs. These studies thus revealed the novel effect of argirein to prevent the vascular complication in T2DM.
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MESH Headings
- Animals
- Anthraquinones/pharmacology
- Arginine/pharmacology
- Cells, Cultured
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/etiology
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/etiology
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Drug Combinations
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Insulin Resistance
- Male
- NADPH Oxidase 4/genetics
- NADPH Oxidase 4/metabolism
- Rats
- Rats, Sprague-Dawley
- Reactive Oxygen Species/metabolism
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Affiliation(s)
- Qing Li
- Department of Clinical Pharmacy, School of Preclinical Medicine and Clinical Pharmacy, China Pharmaceutical University, 24 Tong jia Lane, P.O. Box 076, Nanjing, China, 210009
| | - Jie Su
- Department of Clinical Pharmacy, School of Preclinical Medicine and Clinical Pharmacy, China Pharmaceutical University, 24 Tong jia Lane, P.O. Box 076, Nanjing, China, 210009
| | - Shi-Jie Jin
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 311400, China
| | - Wei Wei
- Department of Clinical Pharmacy, School of Preclinical Medicine and Clinical Pharmacy, China Pharmaceutical University, 24 Tong jia Lane, P.O. Box 076, Nanjing, China, 210009
| | - Xiao-Dong Cong
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 311400, China
| | - Xiao-Xue Li
- Department of Pathology, Medical School of Southeast University, Nanjing 210009, China
| | - Ming Xu
- Department of Clinical Pharmacy, School of Preclinical Medicine and Clinical Pharmacy, China Pharmaceutical University, 24 Tong jia Lane, P.O. Box 076, Nanjing, China, 210009.
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16
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17
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Rossignoli A, Shang MM, Gladh H, Moessinger C, Foroughi Asl H, Talukdar HA, Franzén O, Mueller S, Björkegren JL, Folestad E, Skogsberg J. Poliovirus Receptor–Related 2. Arterioscler Thromb Vasc Biol 2017; 37:534-542. [DOI: 10.1161/atvbaha.116.308715] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 12/19/2016] [Indexed: 12/27/2022]
Abstract
Objective—
Recently, poliovirus receptor–related 2 (
Pvrl2
) emerged as a top gene in a global gene expression study aiming to detect plasma cholesterol–responsive genes causally related to atherosclerosis regression in hypercholesterolemic mice. PVRL2 is an adherens junction protein implied to play a role in transendothelial migration of leukocytes, a key feature in atherosclerosis development. In this study, we investigated the effect of
Pvrl2
deficiency on atherosclerosis development and transendothelial migration of leukocytes activity.
Approach and Results—
Pvrl2
-deficient mice bred onto an atherosclerosis-prone background (
Pvrl2
−/−
Ldlr
−/−
Apob
100/100
) had less atherosclerotic lesions and more stable plaques compared with littermate controls (
Pvrl2
+/+
Ldlr
−/−
Apob
100/100
).
Pvrl2
−/−
Ldlr
−/−
Apob
100/100
mice also showed a 49% decrease in transendothelial migration of leukocytes activity observed using the in vivo air pouch model. In accordance, augmented arterial wall expression of
Pvrl2
during atherosclerosis progression coincided with an increased gene expression of migrating leukocytes into the vessel wall. Both in human and mice, gene and protein expression of PVRL2 was predominantly observed in the vascular endothelium according to the immunohistochemical and gene expression data. In addition, the cholesterol responsiveness of
PVRL2
was also observed in humans.
Conclusions—
PVRL2 is a plasma cholesterol–responsive gene acting at endothelial sites of vascular inflammation that could potentially be a new therapeutic target for atherosclerosis prevention through its suggested transendothelial migration of leukocytes modulating activity.
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Affiliation(s)
- Aránzazu Rossignoli
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Ming-Mei Shang
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Hanna Gladh
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Christine Moessinger
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Hassan Foroughi Asl
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Husain Ahammad Talukdar
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Oscar Franzén
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Steffen Mueller
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Johan L.M. Björkegren
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Erika Folestad
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
| | - Josefin Skogsberg
- From the Division of Vascular Biology, Department of Medical Biochemistry and Biophysics (A.R., H.G., C.M., H.F.A., H.A.T., J.L.M.B., E.F., J.S.) and Unit of Computational Medicine, Department of Medicine (M.-M.S.), Karolinska Institutet, Stockholm, Sweden; Department of Genetics and Genomic Sciences, Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY (O.F., J.L.M.B.); and Department of Molecular Genetics and Microbiology, Stony Brook University, New
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18
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von Scheidt M, Zhao Y, Kurt Z, Pan C, Zeng L, Yang X, Schunkert H, Lusis AJ. Applications and Limitations of Mouse Models for Understanding Human Atherosclerosis. Cell Metab 2017; 25:248-261. [PMID: 27916529 PMCID: PMC5484632 DOI: 10.1016/j.cmet.2016.11.001] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/26/2016] [Accepted: 11/03/2016] [Indexed: 12/13/2022]
Abstract
Most of the biological understanding of mechanisms underlying coronary artery disease (CAD) derives from studies of mouse models. The identification of multiple CAD loci and strong candidate genes in large human genome-wide association studies (GWASs) presented an opportunity to examine the relevance of mouse models for the human disease. We comprehensively reviewed the mouse literature, including 827 literature-derived genes, and compared it to human data. First, we observed striking concordance of risk factors for atherosclerosis in mice and humans. Second, there was highly significant overlap of mouse genes with human genes identified by GWASs. In particular, of the 46 genes with strong association signals in CAD GWASs that were studied in mouse models, all but one exhibited consistent effects on atherosclerosis-related phenotypes. Third, we compared 178 CAD-associated pathways derived from human GWASs with 263 from mouse studies and observed that the majority were consistent between the species.
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Affiliation(s)
- Moritz von Scheidt
- Deutsches Herzzentrum München, Technische Universität München, 80333 Munich, Germany
| | - Yuqi Zhao
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Zeyneb Kurt
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Calvin Pan
- Departments of Medicine, Microbiology, and Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Lingyao Zeng
- Deutsches Herzzentrum München, Technische Universität München, 80333 Munich, Germany
| | - Xia Yang
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Heribert Schunkert
- Deutsches Herzzentrum München, Technische Universität München, 80333 Munich, Germany; Deutsches Zentrum für Herz- und Kreislauferkrankungen (DZHK), Partner Site Munich Heart Alliance, 80336 Munich, Germany
| | - Aldons J Lusis
- Departments of Medicine, Microbiology, and Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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19
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Westerterp M, Tsuchiya K, Tattersall IW, Fotakis P, Bochem AE, Molusky MM, Ntonga V, Abramowicz S, Parks JS, Welch CL, Kitajewski J, Accili D, Tall AR. Deficiency of ATP-Binding Cassette Transporters A1 and G1 in Endothelial Cells Accelerates Atherosclerosis in Mice. Arterioscler Thromb Vasc Biol 2016; 36:1328-37. [PMID: 27199450 DOI: 10.1161/atvbaha.115.306670] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 05/10/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Plasma high-density lipoproteins have several putative antiatherogenic effects, including preservation of endothelial functions. This is thought to be mediated, in part, by the ability of high-density lipoproteins to promote cholesterol efflux from endothelial cells (ECs). The ATP-binding cassette transporters A1 and G1 (ABCA1 and ABCG1) interact with high-density lipoproteins to promote cholesterol efflux from ECs. To determine the impact of endothelial cholesterol efflux pathways on atherogenesis, we prepared mice with endothelium-specific knockout of Abca1 and Abcg1. APPROACH AND RESULTS Generation of mice with EC-ABCA1 and ABCG1 deficiency required crossbreeding Abca1(fl/fl)Abcg1(fl/fl)Ldlr(-/-) mice with the Tie2Cre strain, followed by irradiation and transplantation of Abca1(fl/fl)Abcg1(fl/fl) bone marrow to abrogate the effects of macrophage ABCA1 and ABCG1 deficiency induced by Tie2Cre. After 20 to 22 weeks of Western-type diet, both single EC-Abca1 and Abcg1 deficiency increased atherosclerosis in the aortic root and whole aorta. Combined EC-Abca1/g1 deficiency caused a significant further increase in lesion area at both sites. EC-Abca1/g1 deficiency dramatically enhanced macrophage lipid accumulation in the branches of the aorta that are exposed to disturbed blood flow, decreased aortic endothelial NO synthase activity, and increased monocyte infiltration into the atherosclerotic plaque. Abca1/g1 deficiency enhanced lipopolysaccharide-induced inflammatory gene expression in mouse aortic ECs, which was recapitulated by ABCG1 deficiency in human aortic ECs. CONCLUSIONS These studies provide direct evidence that endothelial cholesterol efflux pathways mediated by ABCA1 and ABCG1 are nonredundant and atheroprotective, reflecting preservation of endothelial NO synthase activity and suppression of endothelial inflammation, especially in regions of disturbed arterial blood flow.
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MESH Headings
- ATP Binding Cassette Transporter 1/deficiency
- ATP Binding Cassette Transporter 1/genetics
- ATP Binding Cassette Transporter, Subfamily G, Member 1/deficiency
- ATP Binding Cassette Transporter, Subfamily G, Member 1/genetics
- Animals
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/pathology
- Aorta, Thoracic/physiopathology
- Aortic Diseases/genetics
- Aortic Diseases/metabolism
- Aortic Diseases/pathology
- Atherosclerosis/genetics
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- Atherosclerosis/physiopathology
- Bone Marrow Transplantation
- Cholesterol/metabolism
- Diet, High-Fat
- Disease Models, Animal
- Disease Progression
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Genetic Predisposition to Disease
- Inflammation Mediators/metabolism
- Macrophages/metabolism
- Male
- Mice, Knockout
- Monocytes/metabolism
- Neovascularization, Physiologic
- Nitric Oxide Synthase Type III/metabolism
- Phenotype
- Plaque, Atherosclerotic
- Receptors, LDL/deficiency
- Receptors, LDL/genetics
- Regional Blood Flow
- Retinal Neovascularization/genetics
- Retinal Neovascularization/metabolism
- Time Factors
- Tissue Culture Techniques
- Whole-Body Irradiation
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Affiliation(s)
- Marit Westerterp
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.).
| | - Kyoichiro Tsuchiya
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Ian W Tattersall
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Panagiotis Fotakis
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Andrea E Bochem
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Matthew M Molusky
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Vusisizwe Ntonga
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Sandra Abramowicz
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - John S Parks
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Carrie L Welch
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Jan Kitajewski
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Domenico Accili
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
| | - Alan R Tall
- From the Division of Molecular Medicine, Department of Medicine (M.W., P.F., A.E.B., M.M.M., V.N., S.A., C.L.W., A.R.T.), Naomi Berrie Diabetes Center (K.T., D.A.), and Department of Pathology, Obstetrics, and Gynaecology (I.W.T., J.K.), Columbia University, New York, NY; Section on Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands (M.W.); Department of Diabetes, Endocrinology, and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan (K.T.); and Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (J.S.P.)
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20
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Affiliation(s)
- Hong Lu
- From the Saha Cardiovascular Research Center, University of Kentucky, Lexington.
| | - Alan Daugherty
- From the Saha Cardiovascular Research Center, University of Kentucky, Lexington
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21
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Maeng YS, Kwon JY, Kim EK, Kwon YG. Heterochromatin Protein 1 Alpha (HP1α: CBX5) is a Key Regulator in Differentiation of Endothelial Progenitor Cells to Endothelial Cells. Stem Cells 2016; 33:1512-22. [PMID: 25588582 DOI: 10.1002/stem.1954] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 12/23/2014] [Indexed: 11/10/2022]
Abstract
As the ability to control the differentiation of endothelial stem/progenitor cells (EPCs) into vascular endothelial cell lineages could be useful for promoting neovascularization, it is important to obtain a deeper understanding of the epigenetic mechanisms that regulate EPC differentiation and neovascularization. Heterochromatin protein 1α (HP1α) is known to be involved in the epigenetic regulation of gene silencing. However, recent reports demonstrate that HP1α can also activate gene expression during cell differentiation. In this study, microarray analysis revealed that HP1α expression was induced during EPC differentiation and is associated with the expression of outgrowing endothelial cell (OEC)-specific protein markers. To explore the role of HP1α in the differentiation of EPCs to OECs, its expression was knocked-down or over-expressed in differentiating EPCs. Overexpression of HP1α promoted the differentiation and angiogenic activity of EPCs in vitro and in vivo, whereas knockdown of HP1α led to a defect in OEC migration, tube formation, and angiogenic sprouting activity. Gene expression profiling showed increased expression of angiogenic genes, including NOTCH1, cadherin-5, and angiopoietin-like-2, and decreased expression of progenitor cell marker genes, including CD133, CXCR4, and C-KIT, in HP1α-overexpressing EPCs. Also, increased HP1α at an early stage of EPC differentiation may regulate angiogenic gene transcription by interacting with chromatin that modifies epigenetic factors such as the methyl-CpG binding domain, Polycomb group ring finger 2, and DNA methyltransferases. Our findings demonstrate, for the first time, that HP1α plays an important role in the differentiation and angiogenic function of EPCs by regulating endothelial gene expression. Stem Cells 2015;33:1512-1522.
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Affiliation(s)
- Yong-Sun Maeng
- Corneal Dystrophy Research Institute; Department of Ophthalmology, Yonsei University College of Medicine, Seoul, 120-752, Korea; Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 120-749, Korea
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22
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Calcagno C, Mulder WJM, Nahrendorf M, Fayad ZA. Systems Biology and Noninvasive Imaging of Atherosclerosis. Arterioscler Thromb Vasc Biol 2016; 36:e1-8. [PMID: 26819466 PMCID: PMC4861402 DOI: 10.1161/atvbaha.115.306350] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Claudia Calcagno
- From the Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY (C.C., W.J.M.M., Z.A.F.); Department of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands (W.J.M.M.); and Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (M.N.).
| | - Willem J M Mulder
- From the Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY (C.C., W.J.M.M., Z.A.F.); Department of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands (W.J.M.M.); and Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (M.N.)
| | - Matthias Nahrendorf
- From the Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY (C.C., W.J.M.M., Z.A.F.); Department of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands (W.J.M.M.); and Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (M.N.)
| | - Zahi A Fayad
- From the Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY (C.C., W.J.M.M., Z.A.F.); Department of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands (W.J.M.M.); and Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (M.N.)
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23
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Bennett BJ, Davis RC, Civelek M, Orozco L, Wu J, Qi H, Pan C, Packard RRS, Eskin E, Yan M, Kirchgessner T, Wang Z, Li X, Gregory JC, Hazen SL, Gargalovic PS, Lusis AJ. Genetic Architecture of Atherosclerosis in Mice: A Systems Genetics Analysis of Common Inbred Strains. PLoS Genet 2015; 11:e1005711. [PMID: 26694027 PMCID: PMC4687930 DOI: 10.1371/journal.pgen.1005711] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 11/06/2015] [Indexed: 12/15/2022] Open
Abstract
Common forms of atherosclerosis involve multiple genetic and environmental factors. While human genome-wide association studies have identified numerous loci contributing to coronary artery disease and its risk factors, these studies are unable to control environmental factors or examine detailed molecular traits in relevant tissues. We now report a study of natural variations contributing to atherosclerosis and related traits in over 100 inbred strains of mice from the Hybrid Mouse Diversity Panel (HMDP). The mice were made hyperlipidemic by transgenic expression of human apolipoprotein E-Leiden (APOE-Leiden) and human cholesteryl ester transfer protein (CETP). The mice were examined for lesion size and morphology as well as plasma lipid, insulin and glucose levels, and blood cell profiles. A subset of mice was studied for plasma levels of metabolites and cytokines. We also measured global transcript levels in aorta and liver. Finally, the uptake of acetylated LDL by macrophages from HMDP mice was quantitatively examined. Loci contributing to the traits were mapped using association analysis, and relationships among traits were examined using correlation and statistical modeling. A number of conclusions emerged. First, relationships among atherosclerosis and the risk factors in mice resemble those found in humans. Second, a number of trait-loci were identified, including some overlapping with previous human and mouse studies. Third, gene expression data enabled enrichment analysis of pathways contributing to atherosclerosis and prioritization of candidate genes at associated loci in both mice and humans. Fourth, the data provided a number of mechanistic inferences; for example, we detected no association between macrophage uptake of acetylated LDL and atherosclerosis. Fifth, broad sense heritability for atherosclerosis was much larger than narrow sense heritability, indicating an important role for gene-by-gene interactions. Sixth, stepwise linear regression showed that the combined variations in plasma metabolites, including LDL/VLDL-cholesterol, trimethylamine N-oxide (TMAO), arginine, glucose and insulin, account for approximately 30 to 40% of the variation in atherosclerotic lesion area. Overall, our data provide a rich resource for studies of complex interactions underlying atherosclerosis. While recent genetic association studies in human populations have succeeded in identifying genetic loci that contribute to coronary artery disease (CAD) and related phenotypes, these loci explain only a small fraction of the genetic variation in CAD and associated traits. Here, we present a complementary approach using association analysis of atherosclerotic traits among inbred strains of mice. A strength of this approach is that it enables in-depth phenotypic characterization including gene expression and metabolic profiling across a variety of tissues, and integration of these molecular phenotypes with coronary artery disease itself. A striking finding was the large fraction of atherosclerosis that was explained by genetic interactions. Association analysis allowed us to identify genetic loci for atherosclerotic lesion area as well as transcript, cytokine and metabolite levels, and relationships among the traits were examined by correlation and network modeling. The plasma metabolites associated with atherosclerosis in mice, namely, LDL/VLDL-cholesterol, TMAO, arginine, glucose and insulin, overlapped with those observed in humans and accounted for approximately 30 to 40% of the observed variation in atherosclerotic lesion area. In summary, our data provide a detailed overview of the genetic architecture of atherosclerosis in mice and a rich resource for studies of the complex genetic and metabolic interactions that underlie the disease.
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Affiliation(s)
- Brian J. Bennett
- Departments of Medicine, Human Genetics, and Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Richard C. Davis
- Departments of Medicine, Human Genetics, and Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Mete Civelek
- Departments of Medicine, Human Genetics, and Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Luz Orozco
- Departments of Medicine, Human Genetics, and Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Judy Wu
- Departments of Medicine, Human Genetics, and Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Hannah Qi
- Departments of Medicine, Human Genetics, and Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Calvin Pan
- Departments of Medicine, Human Genetics, and Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - René R. Sevag Packard
- Departments of Medicine, Human Genetics, and Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Eleazar Eskin
- Department of Computer Science, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Mujing Yan
- Department of Cardiovascular Drug Discovery, Bristol-Myers Squibb, Princeton, New Jersey, United States of America
| | - Todd Kirchgessner
- Department of Cardiovascular Drug Discovery, Bristol-Myers Squibb, Princeton, New Jersey, United States of America
| | - Zeneng Wang
- Department of Cellular and Molecular Medicine (NC10), Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States of America
| | - Xinmin Li
- Department of Cellular and Molecular Medicine (NC10), Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States of America
| | - Jill C. Gregory
- Department of Cellular and Molecular Medicine (NC10), Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States of America
| | - Stanley L. Hazen
- Department of Cellular and Molecular Medicine (NC10), Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, United States of America
| | - Peter S. Gargalovic
- Department of Cardiovascular Drug Discovery, Bristol-Myers Squibb, Princeton, New Jersey, United States of America
| | - Aldons J. Lusis
- Departments of Medicine, Human Genetics, and Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
- * E-mail:
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24
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Briot A, Civelek M, Seki A, Hoi K, Mack JJ, Lee SD, Kim J, Hong C, Yu J, Fishbein GA, Vakili L, Fogelman AM, Fishbein MC, Lusis AJ, Tontonoz P, Navab M, Berliner JA, Iruela-Arispe ML. Endothelial NOTCH1 is suppressed by circulating lipids and antagonizes inflammation during atherosclerosis. J Exp Med 2015; 212:2147-63. [PMID: 26552708 PMCID: PMC4647265 DOI: 10.1084/jem.20150603] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 09/21/2015] [Indexed: 12/11/2022] Open
Abstract
Briot et al. show that inflammatory lipids deriving from a high-fat diet suppress NOTCH1 expression and signaling in adult arterial endothelium and propose that reduction of endothelial NOTCH1 is a predisposing factor in the onset of atherosclerosis. Although much progress has been made in identifying the mechanisms that trigger endothelial activation and inflammatory cell recruitment during atherosclerosis, less is known about the intrinsic pathways that counteract these events. Here we identified NOTCH1 as an antagonist of endothelial cell (EC) activation. NOTCH1 was constitutively expressed by adult arterial endothelium, but levels were significantly reduced by high-fat diet. Furthermore, treatment of human aortic ECs (HAECs) with inflammatory lipids (oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine [Ox-PAPC]) and proinflammatory cytokines (TNF and IL1β) decreased Notch1 expression and signaling in vitro through a mechanism that requires STAT3 activation. Reduction of NOTCH1 in HAECs by siRNA, in the absence of inflammatory lipids or cytokines, increased inflammatory molecules and binding of monocytes. Conversely, some of the effects mediated by Ox-PAPC were reversed by increased NOTCH1 signaling, suggesting a link between lipid-mediated inflammation and Notch1. Interestingly, reduction of NOTCH1 by Ox-PAPC in HAECs was associated with a genetic variant previously correlated to high-density lipoprotein in a human genome-wide association study. Finally, endothelial Notch1 heterozygous mice showed higher diet-induced atherosclerosis. Based on these findings, we propose that reduction of endothelial NOTCH1 is a predisposing factor in the onset of vascular inflammation and initiation of atherosclerosis.
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Affiliation(s)
- Anaïs Briot
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095
| | - Mete Civelek
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Atsuko Seki
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Karen Hoi
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095
| | - Julia J Mack
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095
| | - Stephen D Lee
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095 Howard Hughes Medical Institute, Los Angeles, CA 90095
| | - Jason Kim
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095 Howard Hughes Medical Institute, Los Angeles, CA 90095
| | - Cynthia Hong
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095 Howard Hughes Medical Institute, Los Angeles, CA 90095
| | - Jingjing Yu
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095
| | - Gregory A Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Ladan Vakili
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Alan M Fogelman
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Aldons J Lusis
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Peter Tontonoz
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095 Howard Hughes Medical Institute, Los Angeles, CA 90095
| | - Mohamad Navab
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Judith A Berliner
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095 Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - M Luisa Iruela-Arispe
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095 Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095
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Sek AC, Xie Z, Terai K, Long LM, Nelson C, Dudek AZ, Druey KM. Endothelial Expression of Endothelin Receptor A in the Systemic Capillary Leak Syndrome. PLoS One 2015; 10:e0133266. [PMID: 26176954 PMCID: PMC4503617 DOI: 10.1371/journal.pone.0133266] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 06/24/2015] [Indexed: 01/01/2023] Open
Abstract
Idiopathic systemic capillary leak syndrome (SCLS) is a rare and potentially fatal vascular disorder characterized by reversible bouts of hypotension and edema resulting from fluid and solute escape into soft tissues. Although spikes in permeability-inducing factors have been linked to acute SCLS flares, whether or not they act on an inherently dysfunctional endothelium is unknown. To assess the contribution of endothelial-intrinsic mechanisms in SCLS, we derived blood-outgrowth endothelial cells (BOEC) from patients and healthy controls and examined gene expression patterns. Ednra, encoding Endothelin receptor A (ETA)-the target of Endothelin 1 (ET-1)-was significantly increased in SCLS BOEC compared to healthy controls. Although vasoconstriction mediated by ET-1 through ETA activation on vascular smooth muscle cells has been well characterized, the expression and function of ETA receptors in endothelial cells (ECs) has not been described. To determine the role of ETA and its ligand ET-1 in SCLS, if any, we examined ET-1 levels in SCLS sera and functional effects of endothelial ETA expression. ETA overexpression in EAhy926 endothelioma cells led to ET-1-induced hyper-permeability through canonical mechanisms. Serum ET-1 levels were elevated in acute SCLS sera compared to remission and healthy control sera, suggesting a possible role for ET-1 and ETA in SCLS pathogenesis. However, although ET-1 alone did not induce hyper-permeability of patient-derived BOEC, an SCLS-related mediator (CXCL10) increased Edrna quantities in BOEC, suggesting a link between SCLS and endothelial ETA expression. These results demonstrate that ET-1 triggers classical mechanisms of vascular barrier dysfunction in ECs through ETA. Further studies of the ET-1-ETA axis in SCLS and in more common plasma leakage syndromes including sepsis and filovirus infection would advance our understanding of vascular integrity mechanisms and potentially uncover new treatment strategies.
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Affiliation(s)
- Albert C. Sek
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States of America
| | - Zhihui Xie
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States of America
| | - Kaoru Terai
- Division of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Lauren M. Long
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States of America
| | - Celeste Nelson
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States of America
| | - Arkadiusz Z. Dudek
- Division of Hematology/Oncology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Kirk M. Druey
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States of America
- * E-mail:
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Kessler T, Kaess B, Bourier F, Erdmann J, Schunkert H. [Genetic analyses as basis for a personalized medicine in patients with coronary artery disease]. Herz 2014; 39:186-93. [PMID: 24464254 DOI: 10.1007/s00059-013-4048-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Knowledge about the etiology of coronary artery disease (CAD) entered new dimensions using genome-wide association studies. The current situation is that 46 chromosomal loci have been identified to be associated with CAD with genome-wide significance, i.e. p<5×10(-8), in Western Europeans. As the individual DNA sequence remains unchanged after fertilization, the risk variants cannot occur due to confounders, such as secondary disease processes. Thus, it can be proposed that these variants are directly affecting a primary and thereby causal pathophysiological process in CAD. Interestingly, only 20% of the effects mediated by the identified loci can be explained by the influence of traditional risk factors. This implies that yet unknown mechanisms and, as a consequence, new therapeutic targets play an important role in the pathophysiology of CAD. However, the high allele frequency of risk loci was also surprising. In the diploid chromosome set Western European individuals carry on average 30-50 risk variants at the 46 loci. Considering this, every individual in the population carries a larger or smaller genetic predisposition for CAD. On the other hand it is remarkable that many risk allele carriers seem to be able to compensate the genetic risk: even in old age not everyone suffers from CAD. This indicates yet unknown gene-gene and gene-environment interactions and limits the current possibilities in individual risk prediction.
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Affiliation(s)
- T Kessler
- Deutsches Herzzentrum München, Klinik für Herz- und Kreislauferkrankungen, Technische Universität München, Lazarettstr. 36, 80636, München, Deutschland
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Affiliation(s)
- Hiroaki Shimokawa
- From the Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kimio Satoh
- From the Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Van Eck M. ATP-binding cassette transporter A1: key player in cardiovascular and metabolic disease at local and systemic level. Curr Opin Lipidol 2014; 25:297-303. [PMID: 24992457 DOI: 10.1097/mol.0000000000000088] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW ATP-binding cassette transporter A1 (ABCA1) facilitates cellular cholesterol efflux to lipid-poor apolipoprotein AI (apoAI) and plays a key role in the formation and function of HDL. This review summarizes the advances and new insights in the role of ABCA1 in cardiovascular and metabolic diseases from studies in genetically engineered mice. RECENT FINDINGS Recent studies show that low HDL associated with liver-specific deletion of ABCA1 does not affect macrophage reverse cholesterol transport or atherosclerosis susceptibility. In the intestine, ABCA1 contributes to the packaging of dietary cholesterol into HDL. Locally in the arterial wall, ABCA1 influences atherosclerosis by acting not only in bone marrow-derived cells but also in endothelial cells and smooth muscle cells. Furthermore, other than its established role in regulating insulin secretion by β-cells, evidence is provided that adipocyte-specific ABCA1 prevents fat storage and the development of impaired glucose tolerance. Moreover, new insights are provided on the post-transcriptional regulation of ABCA1 expression by microRNAs. SUMMARY Recent studies underscore the importance of ABCA1 in the prevention of cardiovascular and metabolic diseases. Furthermore, the discovery of the extensive regulation of ABCA1 expression by microRNAs has unraveled novel therapeutic targets for ABCA1-based strategies for the treatment of these diseases.
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Affiliation(s)
- Miranda Van Eck
- Division of Biopharmaceutics, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, The Netherlands
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