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Drost CC, Rovas A, Osiaevi I, Schughart K, Lukasz A, Linke WA, Pavenstädt H, Kümpers P. Interleukin-6 drives endothelial glycocalyx damage in COVID-19 and bacterial sepsis. Angiogenesis 2024:10.1007/s10456-024-09916-w. [PMID: 38598083 DOI: 10.1007/s10456-024-09916-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 03/28/2024] [Indexed: 04/11/2024]
Abstract
Damage of the endothelial glycocalyx (eGC) plays a central role in the development of vascular hyperpermeability and organ damage during systemic inflammation. However, the specific signalling pathways for eGC damage remain poorly defined. Aim of this study was to combine sublingual video-microscopy, plasma proteomics and live cell imaging to uncover further pathways of eGC damage in patients with coronavirus disease 2019 (COVID-19) or bacterial sepsis. This secondary analysis of the prospective multicenter MICROCODE study included 22 patients with COVID-19 and 43 patients with bacterial sepsis admitted to intermediate or intensive care units and 10 healthy controls. Interleukin-6 (IL-6) was strongly associated with damaged eGC and correlated both with eGC dimensions (rs=0.36, p = 0.0015) and circulating eGC biomarkers. In vitro, IL-6 reduced eGC height and coverage, which was inhibited by blocking IL-6 signalling with the anti-IL-6 receptor antibody tocilizumab or the Janus kinase inhibitor tofacitinib. Exposure of endothelial cells to 5% serum from COVID-19 or sepsis patients resulted in a significant decrease in eGC height, which was attenuated by co-incubation with tocilizumab. In an external COVID-19 cohort of 219 patients from Massachusetts General Hospital, a previously identified proteomic eGC signature correlated with IL-6 (rs=-0.58, p < 0.0001) and predicted the combined endpoint of 28-day mortality and/or intubation (ROC-AUC: 0.86 [95% CI: 0.81-0.91], p < 0.001). The data suggest that IL-6 may significantly drive eGC damage in COVID-19 and bacterial sepsis. Our findings provide valuable insights into pathomechanisms of vascular dysfunction during systemic inflammation and highlight the need for further in vivo studies.
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Affiliation(s)
- Carolin Christina Drost
- Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Alexandros Rovas
- Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Irina Osiaevi
- Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
- Department of Medicine A, Hematology, Oncology and Pulmonary Medicine, University Hospital Muenster, 48149, Muenster, Germany
| | - Klaus Schughart
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, USA
- Institute of Virology Münster, University of Münster, Münster, Germany
| | - Alexander Lukasz
- Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Wolfgang A Linke
- Institute of Physiology II, University Hospital Münster, Robert-Koch-Straße 27b, 48149, Münster, Germany
| | - Hermann Pavenstädt
- Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Philipp Kümpers
- Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany.
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2
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Schoch L, Alcover S, Padró T, Ben-Aicha S, Mendieta G, Badimon L, Vilahur G. Update of HDL in atherosclerotic cardiovascular disease. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE ARTERIOSCLEROSIS 2023; 35:297-314. [PMID: 37940388 DOI: 10.1016/j.arteri.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/13/2023] [Indexed: 11/10/2023]
Abstract
Epidemiologic evidence supported an inverse association between HDL (high-density lipoprotein) cholesterol (HDL-C) levels and atherosclerotic cardiovascular disease (ASCVD), identifying HDL-C as a major cardiovascular risk factor and postulating diverse HDL vascular- and cardioprotective functions beyond their ability to drive reverse cholesterol transport. However, the failure of several clinical trials aimed at increasing HDL-C in patients with overt cardiovascular disease brought into question whether increasing the cholesterol cargo of HDL was an effective strategy to enhance their protective properties. In parallel, substantial evidence supports that HDLs are complex and heterogeneous particles whose composition is essential for maintaining their protective functions, subsequently strengthening the "HDL quality over quantity" hypothesis. The following state-of-the-art review covers the latest understanding as per the roles of HDL in ASCVD, delves into recent advances in understanding the complexity of HDL particle composition, including proteins, lipids and other HDL-transported components and discusses on the clinical outcomes after the administration of HDL-C raising drugs with particular attention to CETP (cholesteryl ester transfer protein) inhibitors.
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Affiliation(s)
- Leonie Schoch
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; Faculty of Medicine, University of Barcelona (UB), 08036 Barcelona, Spain
| | - Sebastián Alcover
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain
| | - Teresa Padró
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain
| | | | - Guiomar Mendieta
- Cardiology Unit, Cardiovascular Clinical Institute, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Lina Badimon
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; Cardiovascular Research Chair, UAB, 08025 Barcelona, Spain; CiberCV, Institute of Health Carlos III, Madrid, Spain
| | - Gemma Vilahur
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; CiberCV, Institute of Health Carlos III, Madrid, Spain.
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3
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Sarakpi T, Mesic A, Speer T. Leukocyte-endothelial interaction in CKD. Clin Kidney J 2023; 16:1845-1860. [PMID: 37915921 PMCID: PMC10616504 DOI: 10.1093/ckj/sfad135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Indexed: 11/03/2023] Open
Abstract
Chronic kidney disease (CKD) represents an independent risk factor for cardiovascular diseases (CVD). Accordingly, CKD patients show a substantial increased risk of cardiovascular mortality. Inflammation represents an important link between CKD and CVD. The interaction between endothelial cells and effector cells of the innate immune system plays a central role in the development and progression of inflammation. Vascular injury causes endothelial dysfunction, leading to augmented oxidative stress, increased expression of leukocyte adhesion molecules and chronic inflammation. CKD induces numerous metabolic changes, creating a uremic milieu resulting in the accumulation of various uremic toxins. These toxins lead to vascular injury, endothelial dysfunction and activation of the innate immune system. Recent studies describe CKD-dependent changes in monocytes that promote endothelial dysfunction and thus CKD progression and CKD-associated CVD. The NLR family pyrin domain containing 3-interleukin-1β-interleukin-6 (NLRP3-IL-1β-IL-6) signaling pathway plays a pivotal role in the development and progression of CVD and CKD alike. Several clinical trials are investigating targeted inhibition of this pathway indicating that anti-inflammatory therapeutic strategies may emerge as novel approaches in patients at high cardiovascular risk and nonresolving inflammation. CKD patients in particular would benefit from targeted anti-inflammatory therapy, since conventional therapeutic regimens have limited efficacy in this population.
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Affiliation(s)
- Tamim Sarakpi
- Department of Internal Medicine 4 – Nephrology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Else Kröner-Fresenius-Zentrum for Nephrological Research, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Armir Mesic
- Department of Internal Medicine 4 – Nephrology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Else Kröner-Fresenius-Zentrum for Nephrological Research, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Thimoteus Speer
- Department of Internal Medicine 4 – Nephrology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Else Kröner-Fresenius-Zentrum for Nephrological Research, Goethe University Frankfurt, Frankfurt am Main, Germany
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4
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Schulz A, Drost CC, Hesse B, Beul K, Boeckel GR, Lukasz A, Pavenstädt H, Brand M, Di Marco GS. The Endothelial Glycocalyx as a Target of Excess Soluble Fms-like Tyrosine Kinase-1. Int J Mol Sci 2023; 24:ijms24065380. [PMID: 36982455 PMCID: PMC10049398 DOI: 10.3390/ijms24065380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
Soluble fms-like tyrosine kinase-1 (sFlt-1) is a secreted protein that binds heparan sulfate expressed on the endothelial glycocalyx (eGC). In this paper we analyze how excess sFlt-1 causes conformational changes in the eGC, leading to monocyte adhesion, a key event triggering vascular dysfunction. In vitro exposure of primary human umbilical vein endothelial cells to excess sFlt-1 decreased eGC height and increased stiffness as determined by atomic force microscopy (AFM). Yet, structural loss of the eGC components was not observed, as indicated by Ulex europaeus agglutinin I and wheat germ agglutinin staining. Moreover, the conformation observed under excess sFlt-1, a collapsed eGC, is flat and stiff with unchanged coverage and sustained content. Functionally, this conformation increased the endothelial adhesiveness to THP-1 monocytes by about 35%. Heparin blocked all these effects, but the vascular endothelial growth factor did not. In vivo administration of sFlt-1 in mice also resulted in the collapse of the eGC in isolated aorta analyzed ex vivo by AFM. Our findings show that excess sFlt-1 causes the collapse of the eGC and favors leukocyte adhesion. This study provides an additional mechanism of action by which sFlt-1 may cause endothelial dysfunction and injury.
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The Soluble Fms-like Tyrosine Kinase-1 Contributes to Structural and Functional Changes in Endothelial Cells in Chronic Kidney Disease. Int J Mol Sci 2022; 23:ijms232416059. [PMID: 36555698 PMCID: PMC9787493 DOI: 10.3390/ijms232416059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Endothelial cells are a critical target of the soluble Fms-like tyrosine kinase-1 (sFlt-1), a soluble factor increased in different diseases with varying degrees of renal impairment and endothelial dysfunction, including chronic kidney disease (CKD). Although the mechanisms underlying endothelial dysfunction are multifactorial and complex, herein, we investigated the damaging effects of sFlt-1 on structural and functional changes in endothelial cells. Our results evidenced that sera from patients with CKD stiffen the endothelial cell cortex in vitro, an effect correlated with sFlt-1 levels and prevented by sFlt-1 neutralization. Besides, we could show that recombinant sFlt-1 leads to endothelial stiffening in vitro and in vivo. This was accompanied by cytoskeleton reorganization and changes in the endothelial barrier function, as observed by increased actin polymerization and endothelial cell permeability, respectively. These results depended on the activation of the p38 MAPK and were blocked by the specific inhibitor SB203580. However, sFlt-1 only minimally affected the expression of stiffness-sensitive genes. These findings bring new insight into the mechanism of action of sFlt-1 and its biological effects that cannot be exclusively ascribed to the regulation of angiogenesis.
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A Dietary Supplement Containing Fucoidan Preserves Endothelial Glycocalyx through ERK/MAPK Signaling and Protects against Damage Induced by CKD Serum. Int J Mol Sci 2022; 23:ijms232415520. [PMID: 36555160 PMCID: PMC9779516 DOI: 10.3390/ijms232415520] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/28/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
(1) Damage to the endothelial glycocalyx (eGC), a protective layer lining the endothelial luminal surface, is associated with chronic kidney disease (CKD), which leads to a worsening of cardiovascular outcomes in these patients. Currently, there are no targeted therapeutic approaches. Whether the dietary supplement EndocalyxTM (ECX) protects against endothelial damage caused by uremic toxins is unknown. (2) We addressed this question by performing atomic force microscopy measurements on living endothelial cells. We examined the effect of ECX on eGC thickness at baseline and with pooled serum from hemodialysis patients. ECX was also successfully administered in vivo in mice, in which eGC was assessed using perfused boundary region measurements by intravital microscopy of cremasteric vessels. (3) Both ECX and fucoidan significantly improved baseline eGC thickness. Our data indicate that these effects are dependent on ERK/MAPK and PI3K signaling. After incubation with eGC damaging serum from dialysis patients, ECX increased eGC height. Intravital microscopy in mice revealed a relevant increase in baseline eGC dimensions after feeding with ECX. (4) We identified a dietary supplement containing glycocalyx substrates and fucoidan as potential mediators of eGC preservation in vitro and in vivo. Our findings suggest that fucoidan may be an essential component responsible for protecting the eGC in acute settings. Moreover, ECX might contribute to both protection and rebuilding of the eGC in the context of CKD.
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7
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Schoch L, Sutelman P, Suades R, Casani L, Padro T, Badimon L, Vilahur G. Hypercholesterolemia-Induced HDL Dysfunction Can Be Reversed: The Impact of Diet and Statin Treatment in a Preclinical Animal Model. Int J Mol Sci 2022; 23:8596. [PMID: 35955730 PMCID: PMC9368958 DOI: 10.3390/ijms23158596] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 02/01/2023] Open
Abstract
High-density lipoproteins (HDL) undergo adverse remodeling and loss of function in the presence of comorbidities. We assessed the potential of lipid-lowering approaches (diet and rosuvastatin) to rescue hypercholesterolemia-induced HDL dysfunction. Hypercholesterolemia was induced in 32 pigs for 10 days. Then, they randomly received one of the 30-day interventions: (I) hypercholesterolemic (HC) diet; (II) HC diet + rosuvastatin; (III) normocholesterolemic (NC) diet; (IV) NC diet + rosuvastatin. We determined cholesterol efflux capacity (CEC), antioxidant potential, HDL particle number, HDL apolipoprotein content, LDL oxidation, and lipid levels. Hypercholesterolemia time-dependently impaired HDL function (−62% CEC, −11% antioxidant index (AOI); p < 0.01), increased HDL particles numbers 2.8-fold (p < 0.0001), reduced HDL-bound APOM (−23%; p < 0.0001), and increased LDL oxidation 1.7-fold (p < 0.0001). These parameters remained unchanged in animals on HC diet alone up to day 40, while AOI deteriorated up to day 25 (−30%). The switch to NC diet reversed HDL dysfunction, restored apolipoprotein M content and particle numbers, and normalized cholesterol levels at day 40. Rosuvastatin improved HDL, AOI, and apolipoprotein M content. Apolipoprotein A-I and apolipoprotein C-III remained unchanged. Lowering LDL-C levels with a low-fat diet rescues HDL CEC and antioxidant potential, while the addition of rosuvastatin enhances HDL antioxidant capacity in a pig model of hypercholesterolemia. Both strategies restore HDL-bound apolipoprotein M content.
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Affiliation(s)
- Leonie Schoch
- Cardiovascular Program ICCC, Institut de Recerca, Hospital Santa Creu i Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; (L.S.) (P.S.); (R.S.); (L.C.); (T.P.); (L.B.)
- Faculty of Medicine, University of Barcelona (UB), 08036 Barcelona, Spain
| | - Pablo Sutelman
- Cardiovascular Program ICCC, Institut de Recerca, Hospital Santa Creu i Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; (L.S.) (P.S.); (R.S.); (L.C.); (T.P.); (L.B.)
| | - Rosa Suades
- Cardiovascular Program ICCC, Institut de Recerca, Hospital Santa Creu i Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; (L.S.) (P.S.); (R.S.); (L.C.); (T.P.); (L.B.)
| | - Laura Casani
- Cardiovascular Program ICCC, Institut de Recerca, Hospital Santa Creu i Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; (L.S.) (P.S.); (R.S.); (L.C.); (T.P.); (L.B.)
| | - Teresa Padro
- Cardiovascular Program ICCC, Institut de Recerca, Hospital Santa Creu i Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; (L.S.) (P.S.); (R.S.); (L.C.); (T.P.); (L.B.)
- CiberCV, 08025 Barcelona, Spain
| | - Lina Badimon
- Cardiovascular Program ICCC, Institut de Recerca, Hospital Santa Creu i Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; (L.S.) (P.S.); (R.S.); (L.C.); (T.P.); (L.B.)
- CiberCV, 08025 Barcelona, Spain
- Cardiovascular Research Chair, Autonomous University of Barcelona (UAB), 08025 Barcelona, Spain
| | - Gemma Vilahur
- Cardiovascular Program ICCC, Institut de Recerca, Hospital Santa Creu i Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; (L.S.) (P.S.); (R.S.); (L.C.); (T.P.); (L.B.)
- CiberCV, 08025 Barcelona, Spain
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8
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Tian H, Ni Z, Lam SM, Jiang W, Li F, Du J, Wang Y, Shui G. Precise Metabolomics Reveals a Diversity of Aging-Associated Metabolic Features. SMALL METHODS 2022; 6:e2200130. [PMID: 35527334 DOI: 10.1002/smtd.202200130] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/24/2022] [Indexed: 06/14/2023]
Abstract
Mass spectrometry-based metabolomics has emerged as a powerful technique for biomedical research, although technical issues with its analytical precision and structural characterization remain. Herein, a robust non-targeted strategy for accurate quantitation and precise profiling of metabolomes is developed and applied to investigate plasma metabolic features associated with human aging. A comprehensive set of isotope-labeled standards (ISs) covering major metabolic pathways is incorporated to quantify polar metabolites. Matching rules to select ISs for calibration follow a primary criterion of minimal coefficients of variations (COVs). If minimal COVs between specific ISs for a particular metabolite fall within 5% window, a further selection of ISs is conducted based on structural similarities and proximity in retention time. The introduction and refined selection of appropriate ISs for quantitation reduces the COVs of 480 identified metabolites in quality control samples from 14.3% to 9.8% and facilitates identification of additional metabolite. Finally, the precise metabolomics approach reveals perturbations in a diverse array of metabolic pathways across aging that principally implicate steroid metabolism, amino acid metabolism, lipid metabolism, and purine metabolism, which allows the authors to draw correlates to the pathology of various age-related diseases. These findings provide clues for the prevention and treatment of these age-related diseases.
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Affiliation(s)
- He Tian
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhen Ni
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Sin Man Lam
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- LipidALL Technologies Company Limited, Changzhou, Jiangsu Province, 213022, China
| | - Wenxi Jiang
- Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Fengjuan Li
- Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Jie Du
- Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Yuan Wang
- Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Guanghou Shui
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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9
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Goetze S, Frey K, Rohrer L, Radosavljevic S, Krützfeldt J, Landmesser U, Bueter M, Pedrioli PGA, von Eckardstein A, Wollscheid B. Reproducible Determination of High-Density Lipoprotein Proteotypes. J Proteome Res 2021; 20:4974-4984. [PMID: 34677978 DOI: 10.1021/acs.jproteome.1c00429] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
High-density lipoprotein (HDL) is a heterogeneous mixture of blood-circulating multimolecular particles containing many different proteins, lipids, and RNAs. Recent advancements in mass spectrometry-based proteotype analysis show promise for the analysis of proteoforms across large patient cohorts. In order to create the required spectral libraries enabling these data-independent acquisition (DIA) strategies, HDL was isolated from the plasma of more than 300 patients with a multiplicity of physiological HDL states. HDL proteome spectral libraries consisting of 296 protein groups and more than 786 peptidoforms were established, and the performance of the DIA strategy was benchmarked for the detection of HDL proteotype differences between healthy individuals and a cohort of patients suffering from diabetes mellitus type 2 and/or coronary heart disease. Bioinformatic interrogation of the data using the generated spectral libraries showed that the DIA approach enabled robust HDL proteotype determination. HDL peptidoform analysis enabled by using spectral libraries allowed for the identification of post-translational modifications, such as in APOA1, which could affect HDL functionality. From a technical point of view, data analysis further shows that protein and peptide quantities are currently more discriminative between different HDL proteotypes than peptidoforms without further enrichment. Together, DIA-based HDL proteotyping enables the robust digitization of HDL proteotypes as a basis for the analysis of larger clinical cohorts.
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Affiliation(s)
- Sandra Goetze
- Institute of Translational Medicine (ITM), Department of Health Sciences and Technology (D-HEST), ETH Zurich, Zurich 8093, Switzerland.,Swiss Multi-Omics Center (SMOC), PHRT-CPAC, ETH Zurich, Zurich 8093, Switzerland.,Swiss Institute of Bioinformatics (SIB), Lausanne 1015, Switzerland
| | - Kathrin Frey
- Institute of Translational Medicine (ITM), Department of Health Sciences and Technology (D-HEST), ETH Zurich, Zurich 8093, Switzerland
| | - Lucia Rohrer
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich 8091, Switzerland
| | - Silvija Radosavljevic
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich 8091, Switzerland
| | - Jan Krützfeldt
- Division of Endocrinology, Diabetes and Clinical Nutrition, University Hospital Zurich, Zurich 8091, Switzerland
| | - Ulf Landmesser
- Department of Cardiology, Charité - Universitätsmedizin Berlin, Berlin 12203, Germany
| | - Marco Bueter
- Department of Surgery and Transplantation, University Hospital Zurich, Zurich 8091, Switzerland
| | - Patrick G A Pedrioli
- Institute of Translational Medicine (ITM), Department of Health Sciences and Technology (D-HEST), ETH Zurich, Zurich 8093, Switzerland.,Swiss Multi-Omics Center (SMOC), PHRT-CPAC, ETH Zurich, Zurich 8093, Switzerland.,Swiss Institute of Bioinformatics (SIB), Lausanne 1015, Switzerland
| | | | - Bernd Wollscheid
- Institute of Translational Medicine (ITM), Department of Health Sciences and Technology (D-HEST), ETH Zurich, Zurich 8093, Switzerland.,Swiss Multi-Omics Center (SMOC), PHRT-CPAC, ETH Zurich, Zurich 8093, Switzerland.,Swiss Institute of Bioinformatics (SIB), Lausanne 1015, Switzerland
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10
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Liu J, Xu J, Huang J, Gu C, Liu Q, Zhang W, Gao F, Tian Y, Miao X, Zhu Z, Jia B, Tian Y, Wu L, Zhao H, Feng X, Liu S. TRIM27 contributes to glomerular endothelial cell injury in lupus nephritis by mediating the FoxO1 signaling pathway. J Transl Med 2021; 101:983-997. [PMID: 33854173 PMCID: PMC8044289 DOI: 10.1038/s41374-021-00591-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 11/09/2022] Open
Abstract
Tripartite motif-containing 27 (TRIM27) belongs to the triple motif (TRIM) protein family, which plays a role in a variety of biological activities. Our previous study showed that the TRIM27 protein was highly expressed in the glomerular endothelial cells of patients suffering from lupus nephritis (LN). However, whether TRIM27 is involved in the injury of glomerular endothelial cells in lupus nephritis remains to be clarified. Here, we detected the expression of the TRIM27 protein in glomerular endothelial cells in vivo and in vitro. In addition, the influence of TRIM27 knockdown on endothelial cell damage in MRL/lpr mice and cultured human renal glomerular endothelial cells (HRGECs) was explored. The results revealed that the expression of TRIM27 in endothelial cells was significantly enhanced in vivo and in vitro. Downregulating the expression of TRIM27 inhibited the breakdown of the glycocalyx and the injury of endothelial cells via the FoxO1 pathway. Moreover, HRGECs transfected with the WT-FoxO1 plasmid showed a reduction in impairment caused by LN plasma. Furthermore, suppression of the protein kinase B (Akt) pathway could attenuate damage by mediating the expression of TRIM27. Thus, the present study showed that TRIM27 participated in the injury of glomerular endothelial cells and served as a potential therapeutic target for the treatment of lupus nephritis.
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Affiliation(s)
- Jinxi Liu
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Jie Xu
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Jie Huang
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Cunyang Gu
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Qingjuan Liu
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Wei Zhang
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Fan Gao
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Yuexin Tian
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Xinyan Miao
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Zixuan Zhu
- Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Baiyun Jia
- Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Yu Tian
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
- Department of Rheumatology, The Second Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lunbi Wu
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Hang Zhao
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China
| | - Xiaojuan Feng
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China.
| | - Shuxia Liu
- Department of Pathology; Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, China.
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11
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Abstract
Matrix metalloproteinases (MMPs) and a disintegrin and metalloproteinases (ADAMs) belong to the metzincin family of zinc-containing multidomain molecules, and can act as soluble or membrane-bound proteases. These enzymes inactivate or activate other soluble or membrane-expressed mediator molecules, which enables them to control developmental processes, tissue remodelling, inflammatory responses and proliferative signalling pathways. The dysregulation of MMPs and ADAMs has long been recognized in acute kidney injury and in chronic kidney disease, and genetic targeting of selected MMPs and ADAMs in different mouse models of kidney disease showed that they can have detrimental and protective roles. In particular, MMP-2, MMP-7, MMP-9, ADAM10 and ADAM17 have been shown to have a mainly profibrotic effect and might therefore represent therapeutic targets. Each of these proteases has been associated with a different profibrotic pathway that involves tissue remodelling, Wnt-β-catenin signalling, stem cell factor-c-kit signalling, IL-6 trans-signalling or epidermal growth factor receptor (EGFR) signalling. Broad-spectrum metalloproteinase inhibitors have been used to treat fibrotic kidney diseases experimentally but more targeted approaches have since been developed, including inhibitory antibodies, to avoid the toxic side effects initially observed with broad-spectrum inhibitors. These advances not only provide a solid foundation for additional preclinical studies but also encourage further translation into clinical research.
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12
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Robert J, Osto E, von Eckardstein A. The Endothelium Is Both a Target and a Barrier of HDL's Protective Functions. Cells 2021; 10:1041. [PMID: 33924941 PMCID: PMC8146309 DOI: 10.3390/cells10051041] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 12/11/2022] Open
Abstract
The vascular endothelium serves as a barrier between the intravascular and extravascular compartments. High-density lipoproteins (HDL) have two kinds of interactions with this barrier. First, bloodborne HDL must pass the endothelium to access extravascular tissues, for example the arterial wall or the brain, to mediate cholesterol efflux from macrophages and other cells or exert other functions. To complete reverse cholesterol transport, HDL must even pass the endothelium a second time to re-enter circulation via the lymphatics. Transendothelial HDL transport is a regulated process involving scavenger receptor SR-BI, endothelial lipase, and ATP binding cassette transporters A1 and G1. Second, HDL helps to maintain the integrity of the endothelial barrier by (i) promoting junction closure as well as (ii) repair by stimulating the proliferation and migration of endothelial cells and their progenitor cells, and by preventing (iii) loss of glycocalix, (iv) apoptosis, as well as (v) transmigration of inflammatory cells. Additional vasoprotective functions of HDL include (vi) the induction of nitric oxide (NO) production and (vii) the inhibition of reactive oxygen species (ROS) production. These vasoprotective functions are exerted by the interactions of HDL particles with SR-BI as well as specific agonists carried by HDL, notably sphingosine-1-phophate (S1P), with their specific cellular counterparts, e.g., S1P receptors. Various diseases modify the protein and lipid composition and thereby the endothelial functionality of HDL. Thorough understanding of the structure-function relationships underlying the multiple interactions of HDL with endothelial cells is expected to elucidate new targets and strategies for the treatment or prevention of various diseases.
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Affiliation(s)
| | | | - Arnold von Eckardstein
- Institute of Clinical Chemistry, University of Zurich and University Hospital of Zurich, 8091 Zurich, Switzerland; (J.R.); (E.O.)
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13
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Patil S, Choudhary S. Deep convolutional neural network for chronic kidney disease prediction using ultrasound imaging. BIO-ALGORITHMS AND MED-SYSTEMS 2021. [DOI: 10.1515/bams-2020-0068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abstract
Objectives
Chronic kidney disease (CKD) is a common disease and it is related to a higher risk of cardiovascular disease and end-stage renal disease that can be prevented by the earlier recognition and diagnosis of individuals at risk. Even though risk factors for CKD have been recognized, the effectiveness of CKD risk classification via prediction models remains uncertain. This paper intends to introduce a new predictive model for CKD using US image.
Methods
The proposed model includes three main phases “(1) preprocessing, (2) feature extraction, (3) and classification.” In the first phase, the input image is subjected to preprocessing, which deploys image inpainting and median filtering processes. After preprocessing, feature extraction takes place under four cases; (a) texture analysis to detect the characteristics of texture, (b) proposed high-level feature enabled local binary pattern (LBP) extraction, (c) area based feature extraction, and (d) mean intensity based feature extraction. These extracted features are then subjected for classification, where “optimized deep convolutional neural network (DCNN)” is used. In order to make the prediction more accurate, the weight and the activation function of DCNN are optimally chosen by a new hybrid model termed as diversity maintained hybrid whale moth flame optimization (DM-HWM) model.
Results
The accuracy of adopted model at 40th training percentage was 44.72, 11.02, 5.59, 3.92, 3.92, 3.57, 2.59, 1.71, 1.68, and 0.42% superior to traditional artificial neural networks (ANN), support vector machine (SVM), NB, J48, NB-tree, LR, composite hypercube on iterated random projection (CHIRP), CNN, moth flame optimization (MFO), and whale optimization algorithm (WOA) models.
Conclusions
Finally, the superiority of the adopted scheme is validated over other conventional models in terms of various measures.
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Affiliation(s)
- Smitha Patil
- Research Scholar, VTU , RC Sir MVIT , Bengaluru , India
- Assistant Professor, Presidency University , Bengaluru , India
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14
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Rovas A, Sackarnd J, Rossaint J, Kampmeier S, Pavenstädt H, Vink H, Kümpers P. Identification of novel sublingual parameters to analyze and diagnose microvascular dysfunction in sepsis: the NOSTRADAMUS study. Crit Care 2021; 25:112. [PMID: 33741036 PMCID: PMC7980588 DOI: 10.1186/s13054-021-03520-w] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 03/01/2021] [Indexed: 11/28/2022] Open
Abstract
Background The availability of handheld, noninvasive sublingual video-microscopes allows for visualization of the microcirculation in critically ill patients. Recent studies demonstrate that reduced numbers of blood-perfused microvessels and increased penetration of erythrocytes into the endothelial glycocalyx are essential components of microvascular dysfunction. The aim of this study was to identify novel microvascular variables to determine the level of microvascular dysfunction in sepsis and its relationship with clinical variables. Methods This observational, prospective, cross-sectional study included 51 participants, of which 34 critically ill sepsis patients were recruited from intensive care units of a university hospital. Seventeen healthy volunteers served as controls. All participants underwent sublingual videomicroscopy by sidestream darkfield imaging. A new developed version of the Glycocheck™ software was used to quantify vascular density, perfused boundary region (PBR-an inverse variable of endothelial glycocalyx dimensions), red blood cell (RBC) velocity, RBC content, and blood flow in sublingual microvessels with diameters between 4 and 25 µm. Results A detailed analysis of adjacent diameter classes (1 µm each) of vessels between 4 and 25 µm revealed a severe reduction of vascular density in very small capillaries (5–7 µm), which correlated with markers of sepsis severity. Analysis of RBC velocity (VRBC) revealed a strong dependency between capillary and feed vessel VRBC in sepsis patients (R2 = 0.63, p < 0.0001) but not in healthy controls (R2 = 0.04, p = 0.43), indicating impaired capillary (de-)recruitment in sepsis. This finding enabled the calculation of capillary recruitment and dynamic capillary blood volume (CBVdynamic). Moreover, adjustment of PBR to feed vessel VRBC further improved discrimination between sepsis patients and controls by about 50%. By combining these dynamic microvascular and glycocalyx variables, we developed the microvascular health score (MVHSdynamic™), which decreased from 7.4 [4.6–8.7] in controls to 1.8 [1.4–2.7] in sepsis patients (p < 0.0001) and correlated with sepsis severity. Conclusion We introduce new important diameter-specific quantification and differentiated analysis of RBC kinetics, a key to understand microvascular dysfunction in sepsis. MVHSdynamic, which has a broad bandwidth to detect microvascular (dys-) function, might serve as a valuable tool to detect microvascular impairment in critically ill patients. ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13054-021-03520-w.
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Affiliation(s)
- Alexandros Rovas
- Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Jan Sackarnd
- Department of Cardiology and Angiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Jan Rossaint
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Stefanie Kampmeier
- Institute of Hygiene, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Hermann Pavenstädt
- Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Hans Vink
- Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Philipp Kümpers
- Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany.
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15
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Butler MJ. Dysfunctional HDL takes its Toll on the endothelial glycocalyx. Kidney Int 2020; 97:450-452. [PMID: 32087885 DOI: 10.1016/j.kint.2019.11.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/09/2019] [Accepted: 11/13/2019] [Indexed: 01/23/2023]
Abstract
Patients with end-stage renal disease have a high risk of dying from cardiovascular disease that cannot be explained solely by traditional cardiovascular disease risk factors. Hesse et al. suggest that dysfunctional high-density lipoprotein cholesterol generated in patients with end-stage renal disease causes endothelial glycocalyx degradation. Glycocalyx degradation may represent one of the earliest insults leading to atheroma formation, and so this work suggests a novel link between renal failure and cardiovascular disease.
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Affiliation(s)
- Matthew J Butler
- Bristol Renal, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
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16
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Liu HQ, Li J, Xuan CL, Ma HC. A review on the physiological and pathophysiological role of endothelial glycocalyx. J Biochem Mol Toxicol 2020; 34:e22571. [PMID: 32659867 DOI: 10.1002/jbt.22571] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/02/2020] [Accepted: 06/23/2020] [Indexed: 12/12/2022]
Abstract
The glycocalyx is a gel-like layer covering the luminal surface of vascular endothelial cells. It comprises of membrane-attached proteoglycans, glycosaminoglycan chains, glycoproteins, and adherent plasma proteins. The glycocalyx maintains homeostasis of the vasculature, which includes controlling vascular permeability and microvascular tone, preventing microvascular thrombosis, and regulating leukocyte adhesion. In the past decades, the number of studies on endothelial glycocalyx has steadily grown. Glycocalyx emerged as an essential part of blood vessels involved in multiple physiological functions. Damage to glycocalyx is associated with many types of diseases. The structure and physiology and pathophysiology of the glycocalyx, as well as the clinical effects of glycocalyx degradation, are addressed throughout this study. We strive in particular to define therapeutic approaches for the survival or reparation of the glycocalyx.
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Affiliation(s)
- Huan-Qiu Liu
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Ji Li
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Cheng-Luan Xuan
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hai-Chun Ma
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
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