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Zhong Y, Liu F, Zhang X, Guo Q, Wang Z, Wang R. Research progress on reproductive system damage caused by high altitude hypoxia. Endocrine 2024; 83:559-570. [PMID: 38170433 DOI: 10.1007/s12020-023-03643-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 11/28/2023] [Indexed: 01/05/2024]
Abstract
PURPOSE The high altitude area is characterized by low pressure and hypoxia, and rapidly entering the high altitude area will cause a series of damage to the body. Some studies have shown that hypoxia can cause damage to the reproductive system. In recent years, researchers have been paying attention to the effects of hypoxia on hormone level, ovarian reserve, embryonic development, testicular development, sperm motility level, and have begun to explore its injury mechanism, but its mechanism is not clear. In this paper, the mechanism of hypoxia on the reproductive system is reviewed, which is expected to provide a new idea for solving the problem of the low fertility rate of humans and animals at high altitudes. METHODS A comprehensive PubMed search was conducted, selecting all relevant peer-reviewed English papers published before January 2022. Other relevant papers were selected from the list of references. RESULTS Studies have shown that the complete fertility rate of people living at low altitudes is 7.7, and the complete fertility rate of people living at high altitudes is 4.77, and the hypoxic environment at high altitudes reduces fertility. At the same time, high-altitude, low-oxygen environments are associated with increased infant mortality and post-neonatal mortality. To date, most studies seem to point to a correlation between anoxic exposure at high altitudes and low fertility in humans and animals. CONCLUSION Although the molecular mechanisms are not fully understood, the effects of hypoxia at high altitude on hormonal level, ovarian reserve, embryonic development, testicular development, and sperm motility and levels require further research to investigate this complex topic.
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Affiliation(s)
- Yan Zhong
- School of Pharmacy, Gansu University of Traditional Chinese Medicine, Lanzhou, China.
- Pharmacy of the 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China.
| | - Feifei Liu
- School of Pharmacy, Gansu University of Traditional Chinese Medicine, Lanzhou, China
- Pharmacy of the 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Xiaojing Zhang
- Pharmacy of the 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China.
| | - Qianwen Guo
- Pharmacy of the 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Zihan Wang
- Pharmacy of the 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Rong Wang
- Pharmacy of the 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China.
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Alavi P, Yousef Abdualla R, Brown D, Mojiri A, Nagendran J, Lewis J, Bourque SL, Jahroudi N. Aging Is Associated With Organ-Specific Alterations in the Level and Expression Pattern of von Willebrand Factor. Arterioscler Thromb Vasc Biol 2023; 43:2183-2196. [PMID: 37732483 DOI: 10.1161/atvbaha.123.319255] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 08/31/2023] [Indexed: 09/22/2023]
Abstract
BACKGROUND VWF (von Willebrand factor) is an endothelial-specific procoagulant protein with a major role in thrombosis. Aging is associated with increased circulating levels of VWF, which presents a risk factor for thrombus formation. METHODS Circulating plasma, cellular protein, and mRNA levels of VWF were determined and compared in young and aged mice. Major organs were subjected to immunofluorescence analyses to determine the vascular pattern of VWF expression and the presence of platelet aggregates. An in vitro model of aging, using extended culture time of endothelial cells, was used to explore the mechanism of age-associated increased VWF levels. RESULTS Increased circulating plasma levels of VWF with elevated levels of larger multimers, indicative of VWF functional activity, were observed in aged mice. VWF mRNA and cellular protein levels were significantly increased in the brains, lungs, and livers but not in the kidneys and hearts of aged mice. Higher proportion of small vessels in brains, lungs, and livers of aged mice exhibited VWF expression compared with young, and this was concomitant with increased platelet aggregate formation. Prolonged culture of endothelial cells resulted in increased cell senescence that correlated with increased VWF expression; VWF expression was specifically detected in senescent cultured endothelial cells and abolished in response to p53 knockdown. A significantly higher proportion of VWF expressing endothelial cells in vivo exhibited senescence markers SA-β-Gal (senescence-associated β-galactosidase) and p53 in aged mouse brains compared with that of the young. CONCLUSIONS Aging elicits a heterogenic response in endothelial cells with regard to VWF expression, leading to organ-specific increase in VWF levels and alterations in vascular tree pattern of expression. This is concomitant with increased platelet aggregate formation. The age-associated increase in VWF expression may be modulated through the process of cell senescence, and p53 transcription factor contributes to its regulation.
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Affiliation(s)
- Parnian Alavi
- Departments of Medicine (P.A., R.Y.A., A.M., N.J.), University of Alberta, Edmonton, Canada
| | - Radya Yousef Abdualla
- Departments of Medicine (P.A., R.Y.A., A.M., N.J.), University of Alberta, Edmonton, Canada
| | - Douglas Brown
- Oncology (D.B., J.L.), University of Alberta, Edmonton, Canada
| | - Anahita Mojiri
- Departments of Medicine (P.A., R.Y.A., A.M., N.J.), University of Alberta, Edmonton, Canada
- Now with Department of Cardiovascular Sciences, Houston Methodist Research Institute, TX (A.M.)
| | | | - John Lewis
- Oncology (D.B., J.L.), University of Alberta, Edmonton, Canada
| | - Stephane L Bourque
- Anesthesiology and Pain Medicine (S.L.B.), University of Alberta, Edmonton, Canada
| | - Nadia Jahroudi
- Departments of Medicine (P.A., R.Y.A., A.M., N.J.), University of Alberta, Edmonton, Canada
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3
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van den Berg J, Haslbauer JD, Stalder AK, Romanens A, Mertz KD, Studt JD, Siegemund M, Buser A, Holbro A, Tzankov A. Von Willebrand factor and the thrombophilia of severe COVID-19: in situ evidence from autopsies. Res Pract Thromb Haemost 2023; 7:100182. [PMID: 37333991 PMCID: PMC10192064 DOI: 10.1016/j.rpth.2023.100182] [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: 10/13/2022] [Revised: 04/29/2023] [Accepted: 05/08/2023] [Indexed: 06/20/2023] Open
Abstract
Background COVID-19 is accompanied by a hypercoagulable state and characterized by microvascular and macrovascular thrombotic complications. In plasma samples from patients with COVID-19, von Willebrand factor (VWF) levels are highly elevated and predictive of adverse outcomes, especially mortality. Yet, VWF is usually not included in routine coagulation analyses, and histologic evidence of its involvement in thrombus formation is lacking. Objectives To determine whether VWF, an acute-phase protein, is a bystander, ie, a biomarker of endothelial dysfunction, or a causal factor in the pathogenesis of COVID-19. Methods We compared autopsy samples from 28 patients with lethal COVID-19 to those from matched controls and systematically assessed for VWF and platelets by immunohistochemistry. The control group comprised 24 lungs, 23 lymph nodes, and 9 hearts and did not differ significantly from the COVID-19 group in age, sex, body mass index (BMI), blood group, or anticoagulant use. Results In lungs, assessed for platelets by immunohistochemistry for CD42b, microthrombi were more frequent in patients with COVID-19 (10/28 [36%] vs 2/24 [8%]; P = .02). A completely normal pattern of VWF was rare in both groups. Accentuated endothelial staining was found in controls, while VWF-rich thrombi were only found in patients with COVID-19 (11/28 [39%] vs 0/24 [0%], respectively; P < .01), as were NETosis thrombi enriched with VWF (7/28 [25%] vs 0/24 [0%], respectively; P < .01). Forty-six percent of the patients with COVID-19 had VWF-rich thrombi, NETosis thrombi, or both. Trends were also seen in pulmonary draining lymph nodes (7/20 [35%] vs 4/24 [17%]; P = .147), where the overall presence of VWF was very high. Conclusion We provide in situ evidence of VWF-rich thrombi, likely attributable to COVID-19, and suggest that VWF may be a therapeutic target in severe COVID-19.
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Affiliation(s)
- Jana van den Berg
- Department of Hematology, University Hospital Basel, Basel, Switzerland
| | - Jasmin D Haslbauer
- Department of Pathology, Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
- Department of Pathology, Cantonal Hospital Baselland, Liestal, Switzerland
| | - Anna K Stalder
- Department of Pathology, Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
| | - Anna Romanens
- Department of Oncology, Cantonal Hospital Baselland, Liestal, Switzerland
| | - Kirsten D Mertz
- Department of Pathology, Cantonal Hospital Baselland, Liestal, Switzerland
| | - Jan-Dirk Studt
- Department of Medical Oncology and Hematology, University Hospital Zürich, Zürich, Switzerland
| | - Martin Siegemund
- Intensive Care Unit, Department of Acute Medicine, University Hospital, Basel, Switzerland
| | - Andreas Buser
- Department of Hematology, University Hospital Basel, Basel, Switzerland
- Regional Blood Transfusion Service, Swiss Red Cross, Basel, Switzerland
| | - Andreas Holbro
- Department of Hematology, University Hospital Basel, Basel, Switzerland
- Regional Blood Transfusion Service, Swiss Red Cross, Basel, Switzerland
| | - Alexandar Tzankov
- Department of Pathology, Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
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Born E, Lipskaia L, Breau M, Houssaini A, Beaulieu D, Marcos E, Pierre R, Do Cruzeiro M, Lefevre M, Derumeaux G, Bulavin DV, Delcroix M, Quarck R, Reen V, Gil J, Bernard D, Flaman JM, Adnot S, Abid S. Eliminating Senescent Cells Can Promote Pulmonary Hypertension Development and Progression. Circulation 2023; 147:650-666. [PMID: 36515093 DOI: 10.1161/circulationaha.122.058794] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Senescent cells (SCs) are involved in proliferative disorders, but their role in pulmonary hypertension remains undefined. We investigated SCs in patients with pulmonary arterial hypertension and the role of SCs in animal pulmonary hypertension models. METHODS We investigated senescence (p16, p21) and DNA damage (γ-H2AX, 53BP1) markers in patients with pulmonary arterial hypertension and murine models. We monitored p16 activation by luminescence imaging in p16-luciferase (p16LUC/+) knock-in mice. SC clearance was obtained by a suicide gene (p16 promoter-driven killer gene construct in p16-ATTAC mice), senolytic drugs (ABT263 and cell-permeable FOXO4-p53 interfering peptide [FOXO4-DRI]), and p16 inactivation in p16LUC/LUC mice. We investigated pulmonary hypertension in mice exposed to normoxia, chronic hypoxia, or hypoxia+Sugen, mice overexpressing the serotonin transporter (SM22-5-HTT+), and rats given monocrotaline. RESULTS Patients with pulmonary arterial hypertension compared with controls exhibited high lung p16, p21, and γ-H2AX protein levels, with abundant vascular cells costained for p16, γ-H2AX, and 53BP1. Hypoxia increased thoracic bioluminescence in p16LUC/+ mice. In wild-type mice, hypoxia increased lung levels of senescence and DNA-damage markers, senescence-associated secretory phenotype components, and p16 staining of pulmonary endothelial cells (P-ECs, 30% of lung SCs in normoxia), and pulmonary artery smooth muscle cells. SC elimination by suicide gene or ABT263 increased the right ventricular systolic pressure and hypertrophy index, increased vessel remodeling (higher dividing proliferating cell nuclear antigen-stained vascular cell counts during both normoxia and hypoxia), and markedly decreased lung P-ECs. Pulmonary hemodynamic alterations and lung P-EC loss occurred in older p16LUC/LUC mice, wild-type mice exposed to Sugen or hypoxia+Sugen, and SM22-5-HTT+ mice given either ABT263 or FOXO4-DRI, compared with relevant controls. The severity of monocrotaline-induced pulmonary hypertension in rats was decreased slightly by ABT263 for 1 week but was aggravated at 3 weeks, with loss of P-ECs. CONCLUSIONS Elimination of senescent P-ECs by senolytic interventions may worsen pulmonary hemodynamics. These results invite consideration of the potential impact on pulmonary vessels of strategies aimed at controlling cell senescence in various contexts.
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Affiliation(s)
- Emmanuelle Born
- INSERM U955 and Département de Physiologie, Hôpital Henri Mondor, FHU SENEC, AP-HP, Créteil, France; Université Paris-Est Créteil (UPEC), France (E.B., L.L., M.B., A.H., D.P.B., E.M., G.D., S. Adnot, S. Abid)
| | - Larissa Lipskaia
- INSERM U955 and Département de Physiologie, Hôpital Henri Mondor, FHU SENEC, AP-HP, Créteil, France; Université Paris-Est Créteil (UPEC), France (E.B., L.L., M.B., A.H., D.P.B., E.M., G.D., S. Adnot, S. Abid)
| | - Marielle Breau
- INSERM U955 and Département de Physiologie, Hôpital Henri Mondor, FHU SENEC, AP-HP, Créteil, France; Université Paris-Est Créteil (UPEC), France (E.B., L.L., M.B., A.H., D.P.B., E.M., G.D., S. Adnot, S. Abid)
| | - Amal Houssaini
- INSERM U955 and Département de Physiologie, Hôpital Henri Mondor, FHU SENEC, AP-HP, Créteil, France; Université Paris-Est Créteil (UPEC), France (E.B., L.L., M.B., A.H., D.P.B., E.M., G.D., S. Adnot, S. Abid)
| | - Delphine Beaulieu
- INSERM U955 and Département de Physiologie, Hôpital Henri Mondor, FHU SENEC, AP-HP, Créteil, France; Université Paris-Est Créteil (UPEC), France (E.B., L.L., M.B., A.H., D.P.B., E.M., G.D., S. Adnot, S. Abid).,Centre de Recherche en Cancérologie de Lyon, UMR INSERM U1052/CNRS 5286, Université de Lyon, Centre Léon Bérard, France (D.B., J.-M.F.)
| | - Elisabeth Marcos
- INSERM U955 and Département de Physiologie, Hôpital Henri Mondor, FHU SENEC, AP-HP, Créteil, France; Université Paris-Est Créteil (UPEC), France (E.B., L.L., M.B., A.H., D.P.B., E.M., G.D., S. Adnot, S. Abid)
| | - Remi Pierre
- Plate-forme de Recombinaison Homologue, Institut Cochin, INSERM, Paris, France (R.P., M.D.-C.)
| | - Marcio Do Cruzeiro
- Plate-forme de Recombinaison Homologue, Institut Cochin, INSERM, Paris, France (R.P., M.D.-C.)
| | - Marine Lefevre
- Institut Mutualiste Montsouris, Département anatomopathologie, Paris, France (M.L.)
| | - Genevieve Derumeaux
- INSERM U955 and Département de Physiologie, Hôpital Henri Mondor, FHU SENEC, AP-HP, Créteil, France; Université Paris-Est Créteil (UPEC), France (E.B., L.L., M.B., A.H., D.P.B., E.M., G.D., S. Adnot, S. Abid)
| | - Dmitry V Bulavin
- Institute for Research on Cancer and Aging, Nice (IRCAN), France (D.V.B.)
| | - Marion Delcroix
- Clinical Department of Respiratory Diseases, University Hospitals and Laboratory of Respiratory Diseases & Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven-University of Leuven, Belgium (M.D., R.Q.)
| | - Rozenn Quarck
- Clinical Department of Respiratory Diseases, University Hospitals and Laboratory of Respiratory Diseases & Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven-University of Leuven, Belgium (M.D., R.Q.)
| | - Virinder Reen
- MRC London Institute of Medical Sciences (LMS), United Kingdom (V.R., J.G.).,Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, United Kingdom (V.R., J.G.)
| | - Jesus Gil
- MRC London Institute of Medical Sciences (LMS), United Kingdom (V.R., J.G.).,Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, United Kingdom (V.R., J.G.)
| | - David Bernard
- Centre de Recherche en Cancérologie de Lyon, UMR INSERM U1052/CNRS 5286, Université de Lyon, Centre Léon Bérard, France (D.B., J.-M.F.)
| | - Jean-Michel Flaman
- Centre de Recherche en Cancérologie de Lyon, UMR INSERM U1052/CNRS 5286, Université de Lyon, Centre Léon Bérard, France (D.B., J.-M.F.)
| | - Serge Adnot
- INSERM U955 and Département de Physiologie, Hôpital Henri Mondor, FHU SENEC, AP-HP, Créteil, France; Université Paris-Est Créteil (UPEC), France (E.B., L.L., M.B., A.H., D.P.B., E.M., G.D., S. Adnot, S. Abid).,Institute for Lung Health, Justus Liebig University, Giessen, Germany (S. Adnot).,Medical Research Center, Liaquat University of Medical and Health Sciences, Jamshoro, Pakistan (S. Abid)
| | - Shariq Abid
- INSERM U955 and Département de Physiologie, Hôpital Henri Mondor, FHU SENEC, AP-HP, Créteil, France; Université Paris-Est Créteil (UPEC), France (E.B., L.L., M.B., A.H., D.P.B., E.M., G.D., S. Adnot, S. Abid)
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Zhang G, Qin Q, Zhang C, Sun X, Kazama K, Yi B, Cheng F, Guo ZF, Sun J. NDRG1 Signaling Is Essential for Endothelial Inflammation and Vascular Remodeling. Circ Res 2023; 132:306-319. [PMID: 36562299 PMCID: PMC9898177 DOI: 10.1161/circresaha.122.321837] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND NDRG-1 (N-myc downstream-regulated gene 1) is a member of NDRG family that plays essential roles in cell differentiation, proliferation, and stress responses. Although the expression of NDRG1 is regulated by fluid shear stress, its roles in vascular biology remain poorly understood. The purpose of the study is to determine the functional significance of NDRG1 in vascular inflammation and remodeling. METHODS AND RESULTS By using quantitative polymerase chain reaction, western blot, and immunohistochemistry, we demonstrate that the expression of NDRG1 is markedly increased in cytokine-stimulated endothelial cells and in human and mouse atherosclerotic lesions. To determine the role of NDRG1 in endothelial activation, we performed loss-of-function studies using NDRG1 short hairpin RNA. Our results demonstrate that NDRG1 knockdown by lentivirus bearing NDRG1 short hairpin RNA substantially attenuates both IL-1β (interleukin-1β) and TNF-α (tumor necrosis factor-α)-induced expression of cytokines/chemokines and adhesion molecules. Intriguingly, inhibition of NDRG1 also significantly attenuates the expression of procoagulant molecules, such as PAI-1 (plasminogen activator inhibitor type 1) and TF (tissue factor), and increases the expression of TM (thrombomodulin) and t-PA (tissue-type plasminogen activator), thus exerting potent antithrombotic effects in endothelial cells. Mechanistically, we showed that NDRG1 interacts with orphan Nur77 (nuclear receptor) and functionally inhibits the transcriptional activity of Nur77 and NF-κB (nuclear factor Kappa B) in endothelial cells. Moreover, in NDRG1 knockdown cells, both cytokine-induced mitogen-activated protein kinase activation, c-Jun phosphorylation, and AP-1 (activator protein 1) transcriptional activity are substantially inhibited. Neointima and atherosclerosis formation induced by carotid artery ligation and arterial thrombosis were markedly attenuated in endothelial cell-specific NDRG1 knockout mice compared with their wild-type littermates. CONCLUSIONS Our results for the first time identify NDRG1 as a critical mediator implicated in regulating endothelial inflammation, thrombotic responses, and vascular remodeling, and suggest that inhibition of NDRG1 may represent a novel therapeutic strategy for inflammatory vascular diseases, such as atherothrombosis and restenosis.
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Affiliation(s)
- Guanxin Zhang
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, USA
- the Institute of Cardiothoracic Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Qing Qin
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Chen Zhang
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Xiaobo Sun
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Kyosuke Kazama
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Bing Yi
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Fang Cheng
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Zhi-Fu Guo
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jianxin Sun
- Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA, USA
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Manz XD, Bogaard HJ, Aman J. Regulation of VWF (Von Willebrand Factor) in Inflammatory Thrombosis. Arterioscler Thromb Vasc Biol 2022; 42:1307-1320. [PMID: 36172866 DOI: 10.1161/atvbaha.122.318179] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Increasing evidence indicates that inflammation promotes thrombosis via a VWF (von Willebrand factor)-mediated mechanism. VWF plays an essential role in maintaining the balance between blood coagulation and bleeding, and inflammation can lead to aberrant regulation. VWF is regulated on a transcriptional and (post-)translational level, and its secretion into the circulation captures platelets upon endothelial activation. The significant progress that has been made in understanding transcriptional and translational regulation of VWF is described in this review. First, we describe how VWF is regulated at the transcriptional and post-translational level with a specific focus on the influence of inflammatory and immune responses. Next, we describe how changes in regulation are linked with various cardiovascular diseases. Recent insights from clinical diseases provide evidence for direct molecular links between inflammation and thrombosis, including atherosclerosis, chronic thromboembolic pulmonary hypertension, and COVID-19. Finally, we will briefly describe clinical implications for antithrombotic treatment.
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Affiliation(s)
- Xue D Manz
- Department of Pulmonary Medicine, Amsterdam UMC, VU University Medical Center, Amsterdam Cardiovascular Sciences (ACS), the Netherlands
| | - Harm Jan Bogaard
- Department of Pulmonary Medicine, Amsterdam UMC, VU University Medical Center, Amsterdam Cardiovascular Sciences (ACS), the Netherlands
| | - Jurjan Aman
- Department of Pulmonary Medicine, Amsterdam UMC, VU University Medical Center, Amsterdam Cardiovascular Sciences (ACS), the Netherlands
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7
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Tao Q, Lu Y, Qi Y, Yu D, Gu J, Zhu Y, Shi C, Liang X. Hypoxia promotes the expression of Von Willebrand factor in breast cancer cells by up-regulating the transcription factor YY1 and down-regulating the hsa-miR-424. Eur J Pharmacol 2022; 934:175308. [DOI: 10.1016/j.ejphar.2022.175308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 09/22/2022] [Accepted: 09/29/2022] [Indexed: 11/03/2022]
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8
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Xu X, Feng Y, Jia Y, Zhang X, Li L, Bai X, Jiao L. Prognostic value of von Willebrand factor and ADAMTS13 in patients with COVID-19: A systematic review and meta-analysis. Thromb Res 2022; 218:83-98. [PMID: 36027630 PMCID: PMC9385270 DOI: 10.1016/j.thromres.2022.08.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/14/2022] [Accepted: 08/15/2022] [Indexed: 11/17/2022]
Abstract
Background Endotheliopathy and coagulopathy appear to be the main causes for critical illness and death in patients with coronavirus disease 2019 (COVID-19). The adhesive ligand von Willebrand factor (VWF) has been involved in immunothrombosis responding to endothelial injury. Here, we reviewed the current literature and performed meta-analyses on the relationship between both VWF and its cleaving protease ADAMTS13 (a disintegrin and metalloproteinase with thrombospondin type 1 motif, member 13) with the prognosis of COVID-19. Methods We searched MEDLINE, Cochrane Library, Web of Science, and EMBASE databases from inception to 4 March 2022 for studies analyzing the relationship between VWF-related variables and composite clinical outcomes of patients with COVID-19. The VWF-related variables analyzed included VWF antigen (VWF:Ag), VWF ristocetin cofactor (VWF:Rco), ADAMTS13 activity (ADAMTS13:Ac), the ratio of VWF:Ag to ADAMTS13:Ac, and coagulation factor VIII (FVIII). The unfavorable outcomes were defined as mortality, intensive care unit (ICU) admission, and severe disease course. We used random or fixed effects models to create summary estimates of risk. Risk of bias was assessed based on the principle of the Newcastle-Ottawa Scale. Results A total of 3764 patients from 40 studies were included. The estimated pooled means indicated increased plasma levels of VWF:Ag, VWF:Rco, and VWF:Ag/ADAMTS13:Ac ratio, and decreased plasma levels of ADAMTS13:Ac in COVID-19 patients with unfavorable outcomes when compared to those with favorable outcomes (composite outcomes or subgroup analyses of non-survivor versus survivor, ICU versus non-ICU, and severe versus non-severe). In addition, FVIII were higher in COVID-19 patients with unfavorable outcomes. Subgroup analyses indicated that FVIII was higher in patients admitting to ICU, while there was no significant difference between non-survivors and survivors. Conclusions The imbalance of the VWF-ADAMTS13 axis (massive quantitative and qualitative increases of VWF with relative deficiency of ADAMTS13) is associated with poor prognosis of patients with COVID-19.
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Affiliation(s)
- Xin Xu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Beijing, China; China International Neuroscience Institute (China-INI), 45 Changchun Street, Beijing, China.
| | - Yao Feng
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Beijing, China; China International Neuroscience Institute (China-INI), 45 Changchun Street, Beijing, China
| | - Yitong Jia
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Beijing, China
| | - Xiao Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Beijing, China; China International Neuroscience Institute (China-INI), 45 Changchun Street, Beijing, China
| | - Long Li
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Beijing, China; China International Neuroscience Institute (China-INI), 45 Changchun Street, Beijing, China
| | - Xuesong Bai
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Beijing, China; China International Neuroscience Institute (China-INI), 45 Changchun Street, Beijing, China
| | - Liqun Jiao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Beijing, China; China International Neuroscience Institute (China-INI), 45 Changchun Street, Beijing, China; Department of Interventional Neuroradiology, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Beijing, China..
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9
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Laitinen P, Väänänen MA, Kolari IL, Mäkinen PI, Kaikkonen MU, Weinberg MS, Morris KV, Korhonen P, Malm T, Ylä-Herttuala S, Roberts TC, Turunen MP, Turunen TA. Nuclear microRNA-466c regulates Vegfa expression in response to hypoxia. PLoS One 2022; 17:e0265948. [PMID: 35358280 PMCID: PMC8975276 DOI: 10.1371/journal.pone.0265948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 03/10/2022] [Indexed: 11/18/2022] Open
Abstract
MicroRNAs are well characterized in their role in silencing gene expression by targeting 3´-UTR of mRNAs in cytoplasm. However, recent studies have shown that miRNAs have a role in the regulation of genes in the nucleus, where they are abundantly located. We show here that in mouse endothelial cell line (C166), nuclear microRNA miR-466c participates in the regulation of vascular endothelial growth factor a (Vegfa) gene expression in hypoxia. Upregulation of Vegfa expression in response to hypoxia was significantly compromised after removal of miR-466c with CRISPR-Cas9 genomic deletion. We identified a promoter-associated long non-coding RNA on mouse Vegfa promoter and show that miR-466c directly binds to this transcript to modulate Vegfa expression. Collectively, these observations suggest that miR-466c regulates Vegfa gene transcription in the nucleus by targeting the promoter, and expands on our understanding of the role of miRNAs well beyond their canonical role.
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Affiliation(s)
- Pia Laitinen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
- RNatives Oy, Kuopio, Finland
| | - Mari-Anna Väänänen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Ida-Liisa Kolari
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Petri I. Mäkinen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Minna U. Kaikkonen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Marc S. Weinberg
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California, United States of America
- Wits/SAMRC Antiviral Gene Therapy Research Unit, School of Pathology, University of the Witwaterstrand, Witwaterstrand, South Africa
| | - Kevin V. Morris
- Center for Gene Therapy, City of Hope–Beckman Research Institute at the City of Hope, Duarte, California, United States of America
- Menzies Health Institute Queensland, School of Medical Science Griffith University, Gold Coast Campus, Queensland, Australia
| | - Paula Korhonen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Tarja Malm
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Seppo Ylä-Herttuala
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
- Heart Center and Gene Therapy Unit, Kuopio University Hospital, Kuopio, Finland
| | - Thomas C. Roberts
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- MDUK Oxford Neuromuscular Centre, Oxford, United Kingdom
| | - Mikko P. Turunen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
- RNatives Oy, Kuopio, Finland
- * E-mail:
| | - Tiia A. Turunen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
- RNatives Oy, Kuopio, Finland
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10
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The Role of Von Willebrand Factor in the Pathogenesis of Pulmonary Vascular Thrombosis in COVID-19. Viruses 2022; 14:v14020211. [PMID: 35215805 PMCID: PMC8874644 DOI: 10.3390/v14020211] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 02/07/2023] Open
Abstract
The increased plasma levels of von Willebrand factor (VWF) in patients with COVID-19 was reported in many studies, and its correlation with disease severity and mortality suggest its important role in the pathogenesis of thrombosis in COVID-19. We performed histological and immunohistochemical studies of the lungs of 29 patients who died from COVID-19. We found a significant increase in the intensity of immunohistochemical reaction for VWF in the pulmonary vascular endothelium when the disease duration was more than 10 days. In the patients who had thrombotic complications, the VWF immunostaining in the pulmonary vascular endothelium was significantly more intense than in nonsurvivors without thrombotic complications. Duration of disease and thrombotic complications were found to be independent predictors of increased VWF immunostaining in the endothelium of pulmonary vessels. We also revealed that bacterial pneumonia was associated with increased VWF staining intensity in pulmonary arterial, arteriolar, and venular endothelium, while lung ventilation was an independent predictor of increased VWF immunostaining in arterial endothelium. The results of the study demonstrated an important role of endothelial VWF in the pathogenesis of thrombus formation in COVID-19.
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11
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Gauchel N, Krauel K, Hamad MA, Bode C, Duerschmied D. Thromboinflammation as a Driver of Venous Thromboembolism. Hamostaseologie 2021; 41:428-432. [PMID: 34942655 DOI: 10.1055/a-1661-0257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Thrombus formation has been identified as an integral part in innate immunity, termed immunothrombosis. Activation of host defense systems is known to result in a procoagulant environment. In this system, cellular players as well as soluble mediators interact with each other and their dysregulation can lead to the pathological process of thromboinflammation. These mechanisms have been under intensified investigation during the COVID-19 pandemic. In this review, we focus on the underlying mechanisms leading to thromboinflammation as one trigger of venous thromboembolism.
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Affiliation(s)
- Nadine Gauchel
- Department of Cardiology and Angiology I, University Heart Center Freiburg-Bad Krozingen, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Krystin Krauel
- Department of Cardiology and Angiology I, University Heart Center Freiburg-Bad Krozingen, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Muataz Ali Hamad
- Department of Cardiology and Angiology I, University Heart Center Freiburg-Bad Krozingen, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Christoph Bode
- Department of Cardiology and Angiology I, University Heart Center Freiburg-Bad Krozingen, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Daniel Duerschmied
- Department of Cardiology and Angiology I, University Heart Center Freiburg-Bad Krozingen, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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12
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Hudson J, Farkas L. Epigenetic Regulation of Endothelial Dysfunction and Inflammation in Pulmonary Arterial Hypertension. Int J Mol Sci 2021; 22:ijms222212098. [PMID: 34829978 PMCID: PMC8617605 DOI: 10.3390/ijms222212098] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/05/2021] [Accepted: 11/06/2021] [Indexed: 12/13/2022] Open
Abstract
Once perceived as a disorder treated by vasodilation, pulmonary artery hypertension (PAH) has emerged as a pulmonary vascular disease with severe endothelial cell dysfunction. In the absence of a cure, many studies seek to understand the detailed mechanisms of EC regulation to potentially create more therapeutic options for PAH. Endothelial dysfunction is characterized by complex phenotypic changes including unchecked proliferation, apoptosis-resistance, enhanced inflammatory signaling and metabolic reprogramming. Recent studies have highlighted the role of epigenetic modifications leading to pro-inflammatory response pathways, endothelial dysfunction, and the progression of PAH. This review summarizes the existing literature on epigenetic mechanisms such as DNA methylation, histone modifications, and non-coding RNAs, which can lead to aberrant endothelial function. Our goal is to develop a conceptual framework for immune dysregulation and epigenetic changes in endothelial cells in the context of PAH. These studies as well as others may lead to advances in therapeutics to treat this devastating disease.
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13
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Hypoxia alters the expression of ACE2 and TMPRSS2 SARS-CoV-2 cell entry mediators in hCMEC/D3 brain endothelial cells. Microvasc Res 2021; 138:104232. [PMID: 34416267 PMCID: PMC8372440 DOI: 10.1016/j.mvr.2021.104232] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 05/30/2021] [Accepted: 08/01/2021] [Indexed: 12/16/2022]
Abstract
The mechanisms by which the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) induces neurological complications remain to be elucidated. We aimed to identify possible effects of hypoxia on the expression of SARS-CoV-2 cell entry mediators, angiotensin-converting enzyme 2 (ACE2) receptor and transmembrane protease serine 2 (TMPRSS2) protein, in human brain endothelial cells, in vitro. hCMEC/D3 cells were exposed to different oxygen tensions: 20% (Control group), 8% or 2% O2 (Hypoxia groups). Cells were harvested 6-, 24- and 48 h following hypoxic challenge for assessment of mRNA and protein, using qPCR and Western Blot. The response of the brain endothelial cells to hypoxia was replicated using modular incubator chambers. We observed an acute increase (6 h, p < 0.05), followed by a longer-term decrease (48 h, p < 0.05) in ACE2 mRNA and protein expression, accompanied by reduced expression of TMPRSS2 protein levels (48 h, p < 0.05) under the more severe hypoxic condition (2% O2). No changes in levels of von Willebrand Factor (vWF - an endothelial cell damage marker) or interleukin 6 (IL-6 - a pro-inflammatory cytokine) mRNA were observed. We conclude that hypoxia regulates brain endothelial cell ACE2 and TMPRSS2 expression in vitro, which may indicate human brain endothelial susceptibility to SARS-CoV-2 infection and subsequent brain sequelae.
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14
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Alavi P, Rathod AM, Jahroudi N. Age-Associated Increase in Thrombogenicity and Its Correlation with von Willebrand Factor. J Clin Med 2021; 10:4190. [PMID: 34575297 PMCID: PMC8472522 DOI: 10.3390/jcm10184190] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 02/07/2023] Open
Abstract
Endothelial cells that cover the lumen of all blood vessels have the inherent capacity to express both pro and anticoagulant molecules. However, under normal physiological condition, they generally function to maintain a non-thrombogenic surface for unobstructed blood flow. In response to injury, certain stimuli, or as a result of dysfunction, endothelial cells release a highly adhesive procoagulant protein, von Willebrand factor (VWF), which plays a central role in formation of platelet aggregates and thrombus generation. Since VWF expression is highly restricted to endothelial cells, regulation of its levels is among the most important functions of endothelial cells for maintaining hemostasis. However, with aging, there is a significant increase in VWF levels, which is concomitant with a significant rise in thrombotic events. It is not yet clear why and how aging results in increased VWF levels. In this review, we have aimed to discuss the age-related increase in VWF, its potential mechanisms, and associated coagulopathies as probable consequences.
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Affiliation(s)
| | | | - Nadia Jahroudi
- Department of Medicine, University of Alberta, Edmonton, AB T6G 2S2, Canada; (P.A.); (A.M.R.)
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15
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Becker RC, Sexton T, Smyth S. COVID-19 and biomarkers of thrombosis: focus on von Willebrand factor and extracellular vesicles. J Thromb Thrombolysis 2021; 52:1010-1019. [PMID: 34350541 PMCID: PMC8336902 DOI: 10.1007/s11239-021-02544-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/15/2021] [Indexed: 12/19/2022]
Abstract
COVID-19, caused by the SARS-CoV-2 virus, is responsible for a pandemic of unparalleled portion over the past century. While the acute phase of infection causes significant morbidity and mortality, post-acute sequelae that can affect essentially any organ system is rapidly taking on an equally large part of the overall impact on human health, quality of life, attempts to return to normalcy and the global economy. Herein, we summarize the potential role of von Willebrand Factor and extracellular vesicles toward understanding the pathophysiology, clinical presentation, duration of illness, diagnostic approach and management of COVID-19 and its sequelae.
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Affiliation(s)
- Richard C Becker
- Heart, Lung and Vascular Institute, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH, 45267, USA.
| | - Travis Sexton
- The Gill Heart and Vascular Institute, University of Kentucky, Lexington, KY, USA
| | - Susan Smyth
- University of Arkansas for Medical Sciences, Little Rock, AK, USA
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16
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Ambade V, Ambade S. “SARS-CoV-2 infection of endothelial cell, clinical laboratory and autopsy findings, and outcomes suggest role of hypoxia-inducible factor-1 in COVID-19”. J Med Biochem 2021; 41:14-20. [PMID: 35291496 PMCID: PMC8882013 DOI: 10.5937/jomb0-30659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 06/13/2021] [Indexed: 11/28/2022] Open
Abstract
Researchers around the world have experienced the dual nature of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), 'tragically lethal in some people while surprisingly benign in others'. There have been congregating studies of the novel coronavirus disease (COVID-19), a disease that mainly attacks the lungs but also has mystifying effects on the heart, kidneys and brain. Researchers are also gathering information to ascertain why people are dying of COVID-19, whether it is solely a respiratory disorder, a coagulation disorder or multi-organ failure. Alterations in laboratory parameters like lactate, ferritin and albumin have been established as risk factors and are associated with outcomes, yet none have not been sub stantiated with a scientific biochemical rationale. SARSCoV-2 affects the alveolar type II epithelial cells which significantly disturbs its surfactant homeostasis, deprives Na,K-ATPase of ATP, thereby disturbing the alveolar lining fluid which then gradually decreases the alveolar gaseous exchange initiating the intracellular hypoxic conditions. This activates AMP-activated kinase, which further inhibits Na,K-ATPase, which can progressively cause respiratory distress syndrome. The virus may infect endothelial cell (EC) which, being less energetic, cannot withstand the huge energy requirement towards viral replication. There - fore glycolysis, the prime energy generating pathway, must be mandatorily upregulated. This can be achieved by Hypoxia-inducible factor-1 (HIF-1). However, HIF-1 also activates transcription of von Willebrand factor, plasminogen activator inhibitor-1, and suppresses the release of thrombomodulin. This in turn sets off the coagulation cascade that can lead to in-situ pulmonary thrombosis and micro clots. The proposed HIF-1 hypothesis justifies various features, biochemical alteration, laboratory as well as autopsy findings such as respiratory distress syndrome, increased blood ferritin and lactate levels, hypoalbuminemia, endothelial invasion, in-situ pulmonary thrombosis and micro clots, and multi-organ failure in COVID-19.
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Affiliation(s)
- Vivek Ambade
- Senior Faculty, Department of Biochemistry, City Pune, State Maharashtra, India
| | - Sonia Ambade
- H V Desai College, Department of Microbiology, City Pune, State Maharashtra, India
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17
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Suvarna K, Biswas D, Pai MGJ, Acharjee A, Bankar R, Palanivel V, Salkar A, Verma A, Mukherjee A, Choudhury M, Ghantasala S, Ghosh S, Singh A, Banerjee A, Badaya A, Bihani S, Loya G, Mantri K, Burli A, Roy J, Srivastava A, Agrawal S, Shrivastav O, Shastri J, Srivastava S. Proteomics and Machine Learning Approaches Reveal a Set of Prognostic Markers for COVID-19 Severity With Drug Repurposing Potential. Front Physiol 2021; 12:652799. [PMID: 33995121 PMCID: PMC8120435 DOI: 10.3389/fphys.2021.652799] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/12/2021] [Indexed: 12/13/2022] Open
Abstract
The pestilential pathogen SARS-CoV-2 has led to a seemingly ceaseless pandemic of COVID-19. The healthcare sector is under a tremendous burden, thus necessitating the prognosis of COVID-19 severity. This in-depth study of plasma proteome alteration provides insights into the host physiological response towards the infection and also reveals the potential prognostic markers of the disease. Using label-free quantitative proteomics, we performed deep plasma proteome analysis in a cohort of 71 patients (20 COVID-19 negative, 18 COVID-19 non-severe, and 33 severe) to understand the disease dynamics. Of the 1200 proteins detected in the patient plasma, 38 proteins were identified to be differentially expressed between non-severe and severe groups. The altered plasma proteome revealed significant dysregulation in the pathways related to peptidase activity, regulated exocytosis, blood coagulation, complement activation, leukocyte activation involved in immune response, and response to glucocorticoid biological processes in severe cases of SARS-CoV-2 infection. Furthermore, we employed supervised machine learning (ML) approaches using a linear support vector machine model to identify the classifiers of patients with non-severe and severe COVID-19. The model used a selected panel of 20 proteins and classified the samples based on the severity with a classification accuracy of 0.84. Putative biomarkers such as angiotensinogen and SERPING1 and ML-derived classifiers including the apolipoprotein B, SERPINA3, and fibrinogen gamma chain were validated by targeted mass spectrometry-based multiple reaction monitoring (MRM) assays. We also employed an in silico screening approach against the identified target proteins for the therapeutic management of COVID-19. We shortlisted two FDA-approved drugs, namely, selinexor and ponatinib, which showed the potential of being repurposed for COVID-19 therapeutics. Overall, this is the first most comprehensive plasma proteome investigation of COVID-19 patients from the Indian population, and provides a set of potential biomarkers for the disease severity progression and targets for therapeutic interventions.
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Affiliation(s)
- Kruthi Suvarna
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Deeptarup Biswas
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Medha Gayathri J. Pai
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Arup Acharjee
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Renuka Bankar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Viswanthram Palanivel
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Akanksha Salkar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Ayushi Verma
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Amrita Mukherjee
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Manisha Choudhury
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Saicharan Ghantasala
- Centre for Research in Nanotechnology and Sciences, Indian Institute of Technology Bombay, Mumbai, India
| | - Susmita Ghosh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Avinash Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Arghya Banerjee
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Apoorva Badaya
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
| | - Surbhi Bihani
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Gaurish Loya
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Krishi Mantri
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Ananya Burli
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Jyotirmoy Roy
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Alisha Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
- Department of Genetics, University of Delhi, New Delhi, India
| | - Sachee Agrawal
- Kasturba Hospital for Infectious Diseases, Mumbai, India
| | - Om Shrivastav
- Kasturba Hospital for Infectious Diseases, Mumbai, India
| | | | - Sanjeeva Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
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18
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Gheware A, Dholakia D, Kannan S, Panda L, Rani R, Pattnaik BR, Jain V, Parekh Y, Enayathullah MG, Bokara KK, Subramanian V, Mukerji M, Agrawal A, Prasher B. Adhatoda Vasica attenuates inflammatory and hypoxic responses in preclinical mouse models: potential for repurposing in COVID-19-like conditions. Respir Res 2021; 22:99. [PMID: 33823870 PMCID: PMC8022127 DOI: 10.1186/s12931-021-01698-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 03/29/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND COVID-19 pneumonia has been associated with severe acute hypoxia, sepsis-like states, thrombosis and chronic sequelae including persisting hypoxia and fibrosis. The molecular hypoxia response pathway has been associated with such pathologies and our recent observations on anti-hypoxic and anti-inflammatory effects of whole aqueous extract of Adhatoda Vasica (AV) prompted us to explore its effects on relevant preclinical mouse models. METHODS In this study, we tested the effect of whole aqueous extract of AV, in murine models of bleomycin induced pulmonary fibrosis, Cecum Ligation and Puncture (CLP) induced sepsis, and siRNA induced hypoxia-thrombosis phenotype. The effect on lung of AV treated naïve mice was also studied at transcriptome level. We also determined if the extract may have any effect on SARS-CoV2 replication. RESULTS Oral administration AV extract attenuates increased airway inflammation, levels of transforming growth factor-β1 (TGF-β1), IL-6, HIF-1α and improves the overall survival rates of mice in the models of pulmonary fibrosis and sepsis and rescues the siRNA induced inflammation and associated blood coagulation phenotypes in mice. We observed downregulation of hypoxia, inflammation, TGF-β1, and angiogenesis genes and upregulation of adaptive immunity-related genes in the lung transcriptome. AV treatment also reduced the viral load in Vero cells infected with SARS-CoV2. CONCLUSION Our results provide a scientific rationale for this ayurvedic herbal medicine in ameliorating the hypoxia-hyperinflammation features and highlights the repurposing potential of AV in COVID-19-like conditions.
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Affiliation(s)
- Atish Gheware
- Genomics and Molecular Medicine, Council of Scientific and Industrial Research -Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi, 110007, India
- CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRoughAyurgenomics) CSIR-IGIB, Delhi, 110007, India
- Centre of Excellence for Applied Development of Ayurveda, Prakriti and Genomics, CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRoughAyurgenomics), CSIR- IGIB, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Dhwani Dholakia
- Genomics and Molecular Medicine, Council of Scientific and Industrial Research -Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi, 110007, India
- Centre of Excellence for Applied Development of Ayurveda, Prakriti and Genomics, CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRoughAyurgenomics), CSIR- IGIB, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sadasivam Kannan
- Center for High Computing, CSIR- Central Leather Research Institute (CLRI), Chennai, 600020, India
| | - Lipsa Panda
- Center for Translational Research in Lung Disease, CSIR- IGIB, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ritu Rani
- Genomics and Molecular Medicine, Council of Scientific and Industrial Research -Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi, 110007, India
- CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRoughAyurgenomics) CSIR-IGIB, Delhi, 110007, India
- Centre of Excellence for Applied Development of Ayurveda, Prakriti and Genomics, CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRoughAyurgenomics), CSIR- IGIB, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | | | - Vaibhav Jain
- Center for Translational Research in Lung Disease, CSIR- IGIB, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Yash Parekh
- CSIR-Center for Cellular and Molecular Biology, Annexe-II, Medical Biotechnology Complex, Uppal Road, Hyderabad, Telangana, 500007, India
| | - M Ghalib Enayathullah
- CSIR-Center for Cellular and Molecular Biology, Annexe-II, Medical Biotechnology Complex, Uppal Road, Hyderabad, Telangana, 500007, India
| | - Kiran Kumar Bokara
- CSIR-Center for Cellular and Molecular Biology, Annexe-II, Medical Biotechnology Complex, Uppal Road, Hyderabad, Telangana, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Venkatesan Subramanian
- Center for High Computing, CSIR- Central Leather Research Institute (CLRI), Chennai, 600020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Mitali Mukerji
- Genomics and Molecular Medicine, Council of Scientific and Industrial Research -Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi, 110007, India
- CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRoughAyurgenomics) CSIR-IGIB, Delhi, 110007, India
- Centre of Excellence for Applied Development of Ayurveda, Prakriti and Genomics, CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRoughAyurgenomics), CSIR- IGIB, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Anurag Agrawal
- Center for Translational Research in Lung Disease, CSIR- IGIB, Delhi, 110007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| | - Bhavana Prasher
- Genomics and Molecular Medicine, Council of Scientific and Industrial Research -Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi, 110007, India.
- CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRoughAyurgenomics) CSIR-IGIB, Delhi, 110007, India.
- Centre of Excellence for Applied Development of Ayurveda, Prakriti and Genomics, CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRoughAyurgenomics), CSIR- IGIB, Delhi, 110007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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ADAM28 from both endothelium and gastric cancer cleaves von Willebrand Factor to eliminate von Willebrand Factor-induced apoptosis of gastric cancer cells. Eur J Pharmacol 2021; 898:173994. [PMID: 33675784 DOI: 10.1016/j.ejphar.2021.173994] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/26/2021] [Accepted: 02/28/2021] [Indexed: 11/20/2022]
Abstract
Disintegrin and metalloproteinase 28 (ADAM28) is a member of the disintegrin and metalloprotease domain (ADAM) family. It is associated with the growth and metastasis of various malignancies in vivo, but its role in gastric cancer remains unclear. The purpose of this study was to investigate the effect of ADAM28 derived from gastric cancer and endothelium on gastric cancer cells and its related mechanisms. In this study, Western blot analysis and q-PCR results showed that ADAM28 was up-regulated in gastric cancer cell lines. The TCGA database showed that patients with high ADAM28 expression had significantly shorter overall survival than those with low ADAM28 expression. By MTT analysis, wound healing assay, and flow cytometry, we found that overexpression/knockdown of ADAM28 expression in gastric cancer cells can regulate cell proliferation, apoptosis and migration in vitro. In addition, overexpression/knockdown of ADAM28 in human umbilical vein endothelial cells (HUVECs) in the upper ventricle can regulate the apoptosis of lower ventricular gastric cancer cells in the co-culture system. Furthermore, ELISA demonstrated that knockdown of ADAM28 from endothelial cells increased the expression of von Willebrand Factor (vWF) in the supernatant. We found that ADAM28 both from gastric cancer cells and HUVECs eliminated vWF-induced apoptosis of gastric cancer cells by cleaving vWF, and the addition of the vWF knockdown plasmid eliminated the increase of integrin β3, p-TP53 and c-Casp3 caused by ADAM28 knockdown. In conclusion, ADAM28 from endothelium and gastric cancer may cleave vWF to eliminate vWF-induced apoptosis of gastric cancer cells and play an pro-metastasis effect.
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20
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Katneni UK, Alexaki A, Hunt RC, Schiller T, DiCuccio M, Buehler PW, Ibla JC, Kimchi-Sarfaty C. Coagulopathy and Thrombosis as a Result of Severe COVID-19 Infection: A Microvascular Focus. Thromb Haemost 2020; 120:1668-1679. [PMID: 32838472 PMCID: PMC7869056 DOI: 10.1055/s-0040-1715841] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/14/2020] [Indexed: 02/08/2023]
Abstract
Coronavirus disease of 2019 (COVID-19) is the clinical manifestation of the respiratory infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). While primarily recognized as a respiratory disease, it is clear that COVID-19 is systemic illness impacting multiple organ systems. One defining clinical feature of COVID-19 has been the high incidence of thrombotic events. The underlying processes and risk factors for the occurrence of thrombotic events in COVID-19 remain inadequately understood. While severe bacterial, viral, or fungal infections are well recognized to activate the coagulation system, COVID-19-associated coagulopathy is likely to have unique mechanistic features. Inflammatory-driven processes are likely primary drivers of coagulopathy in COVID-19, but the exact mechanisms linking inflammation to dysregulated hemostasis and thrombosis are yet to be delineated. Cumulative findings of microvascular thrombosis has raised question if the endothelium and microvasculature should be a point of investigative focus. von Willebrand factor (VWF) and its protease, a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13 (ADAMTS-13), play important role in the maintenance of microvascular hemostasis. In inflammatory conditions, imbalanced VWF-ADAMTS-13 characterized by elevated VWF levels and inhibited and/or reduced activity of ADAMTS-13 has been reported. Also, an imbalance between ADAMTS-13 activity and VWF antigen is associated with organ dysfunction and death in patients with systemic inflammation. A thorough understanding of VWF-ADAMTS-13 interactions during early and advanced phases of COVID-19 could help better define the pathophysiology, guide thromboprophylaxis and treatment, and improve clinical prognosis.
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Affiliation(s)
- Upendra K. Katneni
- Department of Pediatrics, The Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, Baltimore, Maryland, United States
| | - Aikaterini Alexaki
- Hemostasis Branch, Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapies, Center for Biologics Evaluation & Research, U.S. FDA, Silver Spring, Maryland, United States
| | - Ryan C. Hunt
- Hemostasis Branch, Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapies, Center for Biologics Evaluation & Research, U.S. FDA, Silver Spring, Maryland, United States
| | - Tal Schiller
- Diabetes, Endocrinology and Metabolic Disease Unit, Kaplan Medical Center, Rehovot, Israel
| | - Michael DiCuccio
- National Center of Biotechnology Information, National Institutes of Health, Bethesda, Maryland, United States
| | - Paul W. Buehler
- Department of Pediatrics, The Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, Baltimore, Maryland, United States
| | - Juan C. Ibla
- Division of Cardiac Anesthesia, Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, United States
| | - Chava Kimchi-Sarfaty
- Hemostasis Branch, Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapies, Center for Biologics Evaluation & Research, U.S. FDA, Silver Spring, Maryland, United States
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21
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Rauch A, Labreuche J, Lassalle F, Goutay J, Caplan M, Charbonnier L, Rohn A, Jeanpierre E, Dupont A, Duhamel A, Faure K, Lambert M, Kipnis E, Garrigue D, Lenting PJ, Poissy J, Susen S. Coagulation biomarkers are independent predictors of increased oxygen requirements in COVID-19. J Thromb Haemost 2020; 18:2942-2953. [PMID: 32881304 PMCID: PMC7461161 DOI: 10.1111/jth.15067] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/21/2020] [Accepted: 08/14/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Hypercoagulability seems to contribute to SARS-CoV-2 pneumonia pathogenesis. However, age and metabolic syndrome are potential confounders when assessing the value of coagulation biomarkers' prediction of COVID-19 outcomes. We assessed whether coagulation biomarkers, including factor VIII (FVIII) and von Willebrand factor (VWF) levels, measured at time of admission, were predictive of COVID-19 adverse outcomes irrespective of age and major comorbidities associated with metabolic syndrome. METHODS Blood was sampled at admission in 243 adult COVID-19 patients for analysis of coagulation biomarkers including FVIII and VWF on platelet-poor plasma. The association between baseline C-reactive protein (CRP), activated partial thromboplastin time ratio, prothrombin time ratio, D-dimers, fibrinogen, FVIII, VWF antigen (VWF:Ag), and FVIII/VWF:Ag ratio levels and adverse outcomes (increased oxygen requirements, thrombosis, and death at day 30) was assessed by regression analysis after adjustment on age, sex, body mass index (BMI), diabetes, and hypertension. RESULTS In univariable regression analysis increased CRP (subdistribution hazard ratio [SHR], 1.68; 95% confidence interval [CI], 1.26-2.23), increased fibrinogen (SHR, 1.32; 95% CI, 1.04-1.68), and decreased FVIII/VWF:Ag ratio (SHR, 0.70; 95% CI, 0.52-0.96) levels at admission were significantly associated with the risk of increased oxygen requirement during follow-up. Leucocytes (SHR, 1.36; 95% CI, 1.04-1.76), platelets (SHR,1.71; 95% CI, 1.11-2.62), D-dimers (SHR, 2.48; 95% CI, 1.66-3.78), and FVIII (SHR, 1.78; 95% CI, 1.17-2.68) were associated with early onset of thrombosis after admission. After adjustment for age, sex, BMI, hypertension, and diabetes, these associations were not modified. CONCLUSION Coagulation biomarkers are early and independent predictors of increased oxygen requirement in COVID-19 patients.
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Affiliation(s)
- Antoine Rauch
- Department of Hematology and Transfusion, Pôle de Biologie Pathologie Génétique, Institut Pasteur de Lille, UMR1011-EGID, Univ. Lille, Inserm, CHU Lille, Lille, France
| | - Julien Labreuche
- ULR 2694 - METRICS: Évaluation des technologies de santé et des pratiques médicales, Univ. Lille, CHU Lille, Lille, France
| | - Fanny Lassalle
- Department of Hematology and Transfusion, Pôle de Biologie Pathologie Génétique, Institut Pasteur de Lille, UMR1011-EGID, Univ. Lille, Inserm, CHU Lille, Lille, France
| | - Julien Goutay
- Intensive Care Department, Pôle de Réanimation, Centre Hospitalier Universitaire Lille, Lille, France
| | - Morgan Caplan
- Intensive Care Department, Pôle de Réanimation, Centre Hospitalier Universitaire Lille, Lille, France
| | - Leslie Charbonnier
- Emergency Department, Pôle de l'Urgence, Centre Hospitalier Universitaire Lille, Lille, France
| | - Aurelien Rohn
- Emergency Department, Pôle de l'Urgence, Centre Hospitalier Universitaire Lille, Lille, France
| | - Emmanuelle Jeanpierre
- Department of Hematology and Transfusion, Pôle de Biologie Pathologie Génétique, Institut Pasteur de Lille, UMR1011-EGID, Univ. Lille, Inserm, CHU Lille, Lille, France
| | - Annabelle Dupont
- Department of Hematology and Transfusion, Pôle de Biologie Pathologie Génétique, Institut Pasteur de Lille, UMR1011-EGID, Univ. Lille, Inserm, CHU Lille, Lille, France
| | - Alain Duhamel
- ULR 2694 - METRICS: Évaluation des technologies de santé et des pratiques médicales, Univ. Lille, CHU Lille, Lille, France
| | - Karine Faure
- Department of Infectious Diseases, Institut Pasteur de Lille, UMR1019-CIIL, Univ. Lille, Inserm, CHU Lille, Lille, France
| | - Marc Lambert
- Department of Internal Medicine, INSERM U 1167, Institut Pasteur, Univ. Lille, Inserm, CHU Lille, Lille, France
| | - Eric Kipnis
- Surgical Critical Care, Department of Anesthesiology and Critical Care, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Univ. Lille, CNRS, Inserm, CHU Lille, Lille, France
| | - Delphine Garrigue
- Emergency Department, Pôle de l'Urgence, Centre Hospitalier Universitaire Lille, Lille, France
| | - Peter J Lenting
- UMR_1176, Inserm, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Julien Poissy
- Pôle de Réanimation, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, Univ. Lille, Inserm U1285, CHU Lille, Lille, France
| | - Sophie Susen
- Department of Hematology and Transfusion, Pôle de Biologie Pathologie Génétique, Institut Pasteur de Lille, UMR1011-EGID, Univ. Lille, Inserm, CHU Lille, Lille, France
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22
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Exposure of von Willebrand Factor on Isolated Hepatocytes Promotes Tethering of Platelets to the Cell Surface. Transplantation 2020; 103:1630-1638. [PMID: 30896677 DOI: 10.1097/tp.0000000000002707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hepatocyte transplantation (Hctx) is a potentially attractive method for the treatment of acute liver failure and liver-based metabolic disorders. Unfortunately, the procedure is hampered by the instant blood-mediated inflammatory reaction (IBMIR), a thromboinflammatory response elicited by the vascular innate immune system, causing activation of the coagulation and complement systems and clearance of transplanted cells. Observations have also revealed platelets adhered to the surface of the hepatocytes (Hc). To establish Hctx as a clinical treatment, all factors that trigger IBMIR need to be identified and controlled. This work explores the expression of von Willebrand factor (VWF) on isolated Hc resulting in tethering of platelets. METHODS VWF on Hc was studied by flow cytometry, confocal microscopy, immunoblot, and real-time polymerase chain reaction. Interaction between Hc and platelets was studied in a Chandler loop model. Adhesion of platelets to the hepatocyte surface was demonstrated by flow cytometry and confocal microscopy. RESULTS Isolated Hc constitutively express VWF on their cell surface and mRNA for VWF was found in the cells. Hc and platelets, independently of coagulation formed complexes, were shown by antibody blocking studies to be dependent on hepatocyte-associated VWF and platelet-bound glycoprotein Ibα. CONCLUSIONS VWF on isolated Hc causes, in contact with blood, adhesion of platelets, which thereby forms an ideal surface for coagulation. This phenomenon needs to be considered in hepatocyte-based reconstitution therapy and possibly even in other settings of cell transplantation.
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23
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Ohuchi H, Hayama Y, Miike H, Suzuki D, Nakajima K, Iwasa T, Konagai N, Sakaguchi H, Miyazaki A, Shiraishi I, Kurosaki KI, Nakai M. Prognostic value of von Willebrand factor in adult patients with congenital heart disease. Heart 2020; 106:910-915. [PMID: 32188625 DOI: 10.1136/heartjnl-2019-316007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 02/09/2020] [Accepted: 02/25/2020] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES von Willebrand factor (vWF) has prognostic value in patients with heart failure (HF) and in those with liver disease. Liver congestion, due to right-sided HF (RHF), is one of the major clinical pathophysiologic manifestations in adults with congenital heart disease (ACHD). The present study's purpose was to clarify the prognostic value of plasma levels of vWF antigen (vWF:Ag) in ACHD. METHODS We measured vWF:Ag (%) in 382 consecutive patients (20 unrepaired cyanotic ACHD, 172 Fontan patients and 190 ACHD after biventricular repair) and compared the results with the clinical profiles and prognosis. RESULTS The plasma vWF:Ag level was 130±53 (normal range: 55%-190%), and 48 patients (13%) showed high levels of vWF:Ag (≥190%). Older age, Fontan circulation, higher central venous pressure, lower arterial oxygen saturation and lower plasma levels of albumin were independently associated with high log (vWF:Ag) (p<0.05-0.0001). During the follow-up of 2.4±1.4 years, 15 patients died. High log (vWF:Ag) predicted the all-cause mortality (HR 1.63 per 0.1, 95% CI 1.40 to 1.96, p<0.0001). Specifically, patients with high vWF:Ag (≥165%) had a substantially higher risk of all-cause mortality (HR 56.4, 95% CI 11.4 to 1020, p<0.0001), and this prognostic value was independent of plasma levels of brain-type natriuretic peptide. CONCLUSIONS High vWF:Ag may reflect RHF severity and related liver dysfunction with a strong prognostic value of all-cause mortality in ACHD. Thus, vWF:Ag might be an excellent biomarker for monitoring ACHD with RHF.
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Affiliation(s)
- Hideo Ohuchi
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Yohsuke Hayama
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Hikari Miike
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Dai Suzuki
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Kimiko Nakajima
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Toru Iwasa
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Nao Konagai
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Heima Sakaguchi
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Aya Miyazaki
- Department of Congenital Heart Disease, Division of Transitional Medicine, Shizuoka General Hospital, Shizuoka, Shizuoka, Japan
| | - Isao Shiraishi
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Ken-Ichi Kurosaki
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Michikazu Nakai
- Preventive Medicine and Epidemiologic Informatics, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
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24
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Nuthikattu S, Milenkovic D, Rutledge J, Villablanca A. The Western Diet Regulates Hippocampal Microvascular Gene Expression: An Integrated Genomic Analyses in Female Mice. Sci Rep 2019; 9:19058. [PMID: 31836762 PMCID: PMC6911042 DOI: 10.1038/s41598-019-55533-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 11/22/2019] [Indexed: 01/05/2023] Open
Abstract
Hyperlipidemia is a risk factor for dementia, and chronic consumption of a Western Diet (WD) is associated with cognitive impairment. However, the molecular mechanisms underlying the development of microvascular disease in the memory centers of the brain are poorly understood. This pilot study investigated the nutrigenomic pathways by which the WD regulates gene expression in hippocampal brain microvessels of female mice. Five-week-old female low-density lipoprotein receptor deficient (LDL-R−/−) and C57BL/6J wild type (WT) mice were fed a chow or WD for 8 weeks. Metabolics for lipids, glucose and insulin were determined. Differential gene expression, gene networks and pathways, transcription factors, and non-protein coding RNAs were evaluated by genome-wide microarray and bioinformatics analysis of laser captured hippocampal microvessels. The WD resulted in differential expression of 2,412 genes. The majority of differential gene expression was attributable to differential regulation of cell signaling proteins and their transcription factors, approximately 7% was attributable to differential expression of miRNAs, and a lesser proportion was due to other non-protein coding RNAs, primarily long non-coding RNAs (lncRNAs) and small nucleolar RNAs (snoRNAs) not previously described to be modified by the WD in females. Our findings revealed that chronic consumption of the WD resulted in integrated multilevel molecular regulation of the hippocampal microvasculature of female mice and may provide one of the mechanisms underlying vascular dementia.
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Affiliation(s)
- Saivageethi Nuthikattu
- Division of Cardiovascular Medicine, University of California, Davis, Davis, California, USA
| | - Dragan Milenkovic
- Division of Cardiovascular Medicine, University of California, Davis, Davis, California, USA.,Université Clermont Auvergne, INRA, UNH, CRNH Auvergne, F-63000, Clermont-Ferrand, France
| | - John Rutledge
- Division of Cardiovascular Medicine, University of California, Davis, Davis, California, USA
| | - Amparo Villablanca
- Division of Cardiovascular Medicine, University of California, Davis, Davis, California, USA.
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25
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Schuhmann MK, Stoll G, Papp L, Bohr A, Volkmann J, Fluri F. Electrical Stimulation of the Mesencephalic Locomotor Region Has No Impact on Blood-Brain Barrier Alterations after Cerebral Photothrombosis in Rats. Int J Mol Sci 2019; 20:ijms20164036. [PMID: 31430854 PMCID: PMC6719928 DOI: 10.3390/ijms20164036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/16/2019] [Accepted: 08/16/2019] [Indexed: 11/16/2022] Open
Abstract
Blood–brain barrier (BBB) disruption is a critical event after ischemic stroke, which results in edema formation and hemorrhagic transformation of infarcted tissue. BBB dysfunction following stroke is partly mediated by proinflammatory agents. We recently have shown that high frequency stimulation of the mesencephalic locomotor region (MLR-HFS) exerts an antiapoptotic and anti-inflammatory effect in the border zone of cerebral photothrombotic stroke in rats. Whether MLR-HFS also has an impact on BBB dysfunction in the early stage of stroke is unknown. In this study, rats were subjected to photothrombotic stroke of the sensorimotor cortex and implantation of a stimulating microelectrode into the ipsilesional MLR. Thereafter, either HFS or sham stimulation of the MLR was applied for 24 h. After scarifying the rats, BBB disruption was assessed by determining albumin extravasation and tight junction integrity (claudin 3, claudin 5, and occludin) using Western blot analyses and immunohistochemistry. In addition, by applying zymography, expression of pro-metalloproteinase-9 (pro-MMP-9) was analyzed. No differences were found regarding infarct size and BBB dysfunction between stimulated and unstimulated animals 24 h after induction of stroke. Our results indicate that MLR-HFS neither improves nor worsens the damaged BBB after stroke. Attenuating cytokines/chemokines in the perilesional area, as mediated by MLR-HFS, tend to play a less significant role in preventing the BBB integrity.
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Affiliation(s)
- Michael K Schuhmann
- Department of Neurology, University Hospital of Würzburg, 97080 Würzburg, Germany
| | - Guido Stoll
- Department of Neurology, University Hospital of Würzburg, 97080 Würzburg, Germany
| | - Lena Papp
- Department of Neurology, University Hospital of Würzburg, 97080 Würzburg, Germany
| | - Arne Bohr
- Department of Neurology, University Hospital of Würzburg, 97080 Würzburg, Germany
| | - Jens Volkmann
- Department of Neurology, University Hospital of Würzburg, 97080 Würzburg, Germany
| | - Felix Fluri
- Department of Neurology, University Hospital of Würzburg, 97080 Würzburg, Germany.
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26
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Lambert M, Capuano V, Boet A, Tesson L, Bertero T, Nakhleh MK, Remy S, Anegon I, Pechoux C, Hautefort A, Rucker-Martin C, Manoury B, Domergue V, Mercier O, Girerd B, Montani D, Perros F, Humbert M, Antigny F. Characterization of Kcnk3-Mutated Rat, a Novel Model of Pulmonary Hypertension. Circ Res 2019; 125:678-695. [PMID: 31347976 DOI: 10.1161/circresaha.119.314793] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
RATIONALE Pulmonary arterial hypertension is a severe lethal cardiopulmonary disease. Loss of function mutations in KCNK3 (potassium channel subfamily K member 3) gene, which encodes an outward rectifier K+ channel, have been identified in pulmonary arterial hypertension patients. OBJECTIVE We have demonstrated that KCNK3 dysfunction is common to heritable and nonheritable pulmonary arterial hypertension and to experimental pulmonary hypertension (PH). Finally, KCNK3 is not functional in mouse pulmonary vasculature. METHODS AND RESULTS Using CRISPR/Cas9 technology, we generated a 94 bp out of frame deletion in exon 1 of Kcnk3 gene and characterized these rats at the electrophysiological, echocardiographic, hemodynamic, morphological, cellular, and molecular levels to decipher the cellular mechanisms associated with loss of KCNK3. Using patch-clamp technique, we validated our transgenic strategy by demonstrating the absence of KCNK3 current in freshly isolated pulmonary arterial smooth muscle cells from Kcnk3-mutated rats. At 4 months of age, echocardiographic parameters revealed shortening of the pulmonary artery acceleration time associated with elevation of the right ventricular systolic pressure. Kcnk3-mutated rats developed more severe PH than wild-type rats after monocrotaline exposure or chronic hypoxia exposure. Kcnk3-mutation induced a lung distal neomuscularization and perivascular extracellular matrix activation. Lungs of Kcnk3-mutated rats were characterized by overactivation of ERK1/2 (extracellular signal-regulated kinase1-/2), AKT (protein kinase B), SRC, and overexpression of HIF1-α (hypoxia-inducible factor-1 α), survivin, and VWF (Von Willebrand factor). Linked with plasma membrane depolarization, reduced endothelial-NOS expression and desensitization of endothelial-derived hyperpolarizing factor, Kcnk3-mutated rats presented predisposition to vasoconstriction of pulmonary arteries and a severe loss of sildenafil-induced pulmonary arteries relaxation. Moreover, we showed strong alteration of right ventricular cardiomyocyte excitability. Finally, Kcnk3-mutated rats developed age-dependent PH associated with low serum-albumin concentration. CONCLUSIONS We established the first Kcnk3-mutated rat model of PH. Our results confirm that KCNK3 loss of function is a key event in pulmonary arterial hypertension pathogenesis. This model presents new opportunities for understanding the initiating mechanisms of PH and testing biologically relevant therapeutic molecules in the context of PH.
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Affiliation(s)
- Mélanie Lambert
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - Véronique Capuano
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - Angèle Boet
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - Laurent Tesson
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, France (L.T., S.R., I.A.).,PTransgenic Rat ImmunoPhenomic (TRIP) facility Nantes, Nantes, France (L.T., S.R., I.A.)
| | - Thomas Bertero
- Université Côte d'Azur, CNRS, IPMC, Valbonne, France (T.B.)
| | - Morad K Nakhleh
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - Séverine Remy
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, France (L.T., S.R., I.A.).,PTransgenic Rat ImmunoPhenomic (TRIP) facility Nantes, Nantes, France (L.T., S.R., I.A.)
| | - Ignacio Anegon
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, France (L.T., S.R., I.A.).,PTransgenic Rat ImmunoPhenomic (TRIP) facility Nantes, Nantes, France (L.T., S.R., I.A.)
| | - Christine Pechoux
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France (C.P.)
| | - Aurélie Hautefort
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - Catherine Rucker-Martin
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - Boris Manoury
- Signalisation et Physiopathologie Cardiovasculaire - UMR_S 1180, Univ. Paris-Sud, INSERM, Université Paris-Saclay, Châtenay-Malabry, France (B.M.)
| | - Valérie Domergue
- Animal Facility, Institut Paris Saclay d'Innovation Thérapeutique (UMS IPSIT), Université Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France (V.D.)
| | - Olaf Mercier
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - Barbara Girerd
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - David Montani
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - Frédéric Perros
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Laval University, Canada (F.P.)
| | - Marc Humbert
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
| | - Fabrice Antigny
- From the University Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M. H., F.A.).,Assistance Publique Hôpitaux de Paris, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.).,Inserm UMR_S 999, Hôpital Marie Lannelongue, Le Plessis Robinson, France (M.L., V.C., A.B., M.K.N., A.H., C.R.-M., O.M., B.G., D.M., F.P., M.H., F.A.)
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27
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Vrolyk V, Schneberger D, Le K, Wobeser BK, Singh B. Mouse model to study pulmonary intravascular macrophage recruitment and lung inflammation in acute necrotizing pancreatitis. Cell Tissue Res 2019; 378:97-111. [DOI: 10.1007/s00441-019-03023-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 03/27/2019] [Indexed: 12/18/2022]
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28
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Mojiri A, Alavi P, Lorenzana Carrillo MA, Nakhaei-Nejad M, Sergi CM, Thebaud B, Aird WC, Jahroudi N. Endothelial cells of different organs exhibit heterogeneity in von Willebrand factor expression in response to hypoxia. Atherosclerosis 2019; 282:1-10. [PMID: 30665023 DOI: 10.1016/j.atherosclerosis.2019.01.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 12/17/2018] [Accepted: 01/09/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS We have previously demonstrated that in response to hypoxia, von Willebrand factor (VWF) expression is upregulated in lung and heart endothelial cells both in vitro and in vivo, but not in kidney endothelial cells. The aim of our current study was to determine whether endothelial cells of different organs employ distinct molecular mechanisms to mediate VWF response to hypoxia. METHODS We used cultured human primary lung, heart and kidney endothelial cells to determine the activation of endogenous VWF as well as exogenously expressed VWF promoter in response to hypoxia. Chromatin immunoprecipitation and siRNA knockdown analyses were used to determine the roles of VWF promoter associated transacting factors in mediating its hypoxia response. Platelet aggregates formations in vascular beds of mice were used as a marker for potential functional consequences of hypoxia-induced VWF upregulation in vivo. RESULTS Our analyses demonstrated that while Yin Yang 1 (YY1) and specificity protein 1 (Sp1) participate in the hypoxia-induced upregulation of VWF specifically in lung endothelial cells, GATA6 mediates this process specifically in heart endothelial cells. In both cell types, the response to hypoxia involves the decreased association of the NFIB repressor with the VWF promoter, and the increased acetylation of the promoter-associated histone H4. In mice exposed to hypoxia, the upregulation of VWF expression was concomitant with the presence of thrombi in heart and lung, but not kidney vascular beds. CONCLUSIONS Heart and lung endothelial cells demonstrated VWF upregulation in response to hypoxia, using distinct mechanisms, while this response was lacking in kidney endothelial cells.
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Affiliation(s)
- Anahita Mojiri
- Department of Medicine, University of Alberta, Edmonton, Canada
| | - Parnian Alavi
- Department of Medicine, University of Alberta, Edmonton, Canada
| | | | | | - Consolato M Sergi
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
| | - Bernard Thebaud
- Ottawa Hospital Research Institute & CHEO Research Institute, Pediatrics, Ottawa, Ontario, Canada
| | - William C Aird
- Center for Vascular Biology Research and Division of Molecular and Vascular Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Nadia Jahroudi
- Department of Medicine, University of Alberta, Edmonton, Canada.
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29
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Nakhaei-Nejad M, Farhan M, Mojiri A, Jabbari H, Murray AG, Jahroudi N. Regulation of von Willebrand Factor Gene in Endothelial Cells That Are Programmed to Pluripotency and Differentiated Back to Endothelial Cells. Stem Cells 2019; 37:542-554. [PMID: 30682218 DOI: 10.1002/stem.2978] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/13/2018] [Accepted: 12/19/2018] [Indexed: 12/13/2022]
Abstract
Endothelial cells play a central role in physiological function and pathophysiology of blood vessels in health and disease. However, the molecular mechanism that establishes the endothelial phenotype, and contributes to its signature cell type-specific gene expression, is not yet understood. We studied the regulation of a highly endothelial-specific gene, von Willebrand factor (VWF), in induced pluripotent stem cells generated from primary endothelial cells (human umbilical vein endothelial cells [HUVEC] into a pluripotent state [HiPS]) and subsequently differentiated back into endothelial cells. This allowed us to explore how VWF expression is regulated when the endothelial phenotype is revoked (endothelial cells to HiPS), and re-established (HiPS back to endothelial cells [EC-Diff]). HiPS were generated from HUVECs, their pluripotency established, and then differentiated back to endothelial cells. We established phenotypic characteristics and robust angiogenic function of EC-Diff. Gene array analyses, VWF chromatin modifications, and transacting factors binding assays were performed on the three cell types (HUVEC, HiPS, and EC-Diff). The results demonstrated that generally cohorts of transacting factors that function as transcriptional activators, and those that contribute to histone acetylation and DNA demethylation, were significantly decreased in HiPS compared with HUVECs and EC-Diff. In contrast, there were significant increases in the gene expression levels of epigenetic modifiers that function as methyl transferases in HiPS compared with endothelial cells. The results demonstrated that alterations in chromatin modifications of the VWF gene, in addition to expression and binding of transacting factors that specifically function as activators, are responsible for establishing endothelial specific regulation of the VWF gene. Stem Cells 2019;37:542-554.
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Affiliation(s)
| | - Maikel Farhan
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Anahita Mojiri
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Hosna Jabbari
- Department of Computer Science, University of Vermont, Burlington, Vermont, USA
| | - Allan G Murray
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Nadia Jahroudi
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
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30
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Mojiri A, Alavi P, Jahroudi N. Von Willebrand factor contribution to pathophysiology outside of von Willebrand disease. Microcirculation 2018; 26:e12510. [PMID: 30365187 DOI: 10.1111/micc.12510] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/12/2018] [Accepted: 10/19/2018] [Indexed: 12/13/2022]
Abstract
VWF is a procoagulant protein that plays a central role in the initiation of platelets aggregate formation and thrombosis. While von Willebrand disease has long been known to result from qualitative and quantitative deficiencies of VWF, it is recently that contribution of elevated levels of VWF to various pathological conditions including thrombosis, inflammation, angiogenesis, and cancer metastasis has been appreciated. Here, we discuss contribution of elevated levels of VWF to various thrombotic and nonthrombotic pathological conditions.
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Affiliation(s)
- Anahita Mojiri
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Parnian Alavi
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Nadia Jahroudi
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
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31
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Chen J, Chung DW. Inflammation, von Willebrand factor, and ADAMTS13. Blood 2018; 132:141-147. [PMID: 29866815 PMCID: PMC6043979 DOI: 10.1182/blood-2018-02-769000] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/08/2018] [Indexed: 12/16/2022] Open
Abstract
Increasing evidence indicates that inflammation can cause thrombosis by a von Willebrand factor (VWF)-mediated mechanism that includes endothelial activation, secretion of VWF, assembly of hyperadhesive VWF strings and fibers, cleavage by ADAMTS13, and adhesion and deposition of VWF-platelet thrombi in the vasculature. This mechanism appears to contribute to thrombosis not only in small vessels, but also in large vessels. Inflammation and VWF contribute to atherogenesis and may contribute to arterial and venous thrombosis as well as stroke. Elucidation of the mechanism will hopefully identify new targets and suggest new approaches for prevention and intervention.
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Affiliation(s)
- Junmei Chen
- Bloodworks Research Institute, Seattle, WA; and
| | - Dominic W Chung
- Bloodworks Research Institute, Seattle, WA; and
- Department of Biochemistry, University of Washington, Seattle, WA
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32
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Kiouptsi K, Gambaryan S, Walter E, Walter U, Jurk K, Reinhardt C. Hypoxia impairs agonist-induced integrin α IIbβ 3 activation and platelet aggregation. Sci Rep 2017; 7:7621. [PMID: 28790378 PMCID: PMC5548784 DOI: 10.1038/s41598-017-07988-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 07/05/2017] [Indexed: 11/09/2022] Open
Abstract
Under ischemic conditions, tissues are exposed to hypoxia. Although human physiology, to a certain extent, can adapt to hypoxic conditions, the impact of low oxygen levels on platelet function is unresolved. Therefore, we explored how reduction of atmospheric oxygen levels to 1% might affect agonist-induced aggregation and static adhesion of isolated human platelets. We uncovered that isolated, washed human platelets exposed to hypoxic conditions show reduced thrombin receptor-activating peptide-6 (TRAP-6) and convulxin-induced aggregation. Of note, this hypoxia-triggered effect was not observed in platelet-rich plasma. Independent of the agonist used (TRAP-6, ADP), activation of the platelet fibrinogen receptor integrin αIIbβ3 (GPIIbIIIa, CD41/CD61) was strongly reduced at 1% and 8% oxygen. The difference in agonist-induced integrin αIIbβ3 activation was apparent within 5 minutes of stimulation. Following hypoxia, re-oxygenation resulted in the recovery of integrin αIIbβ3 activation. Importantly, platelet secretion was not impaired by hypoxia. Static adhesion experiments revealed decreased platelet deposition to fibrinogen coatings, but not to collagen or vitronectin coatings, indicating that specifically the function of the integrin subunit αIIb is impaired by exposure of platelets to reduced oxygen levels. Our results reveal an unexpected effect of oxygen deprivation on platelet aggregation mediated by the fibrinogen receptor integrin αIIbβ3.
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Affiliation(s)
- Klytaimnistra Kiouptsi
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Langenbeckstrasse 1, Building 708, 55131, Mainz, Germany
| | - Stepan Gambaryan
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Langenbeckstrasse 1, Building 708, 55131, Mainz, Germany.,Sechenov Instutute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - Elena Walter
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Langenbeckstrasse 1, Building 708, 55131, Mainz, Germany
| | - Ulrich Walter
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Langenbeckstrasse 1, Building 708, 55131, Mainz, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site RheinMain, Mainz, Germany
| | - Kerstin Jurk
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Langenbeckstrasse 1, Building 708, 55131, Mainz, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site RheinMain, Mainz, Germany
| | - Christoph Reinhardt
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Langenbeckstrasse 1, Building 708, 55131, Mainz, Germany. .,German Center for Cardiovascular Research (DZHK), Partner Site RheinMain, Mainz, Germany.
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33
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Agostini S, Lionetti V. New insights into the non-hemostatic role of von Willebrand factor in endothelial protection. Can J Physiol Pharmacol 2017; 95:1183-1189. [PMID: 28715643 DOI: 10.1139/cjpp-2017-0126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
During exposure to ischemia-reperfusion (I/R) insult, angiotensin II (AngII)-induced endothelin-1 (ET-1) upregulation in endothelial cells progressively impairs nitric oxide (NO) bioavailability while increasing levels of superoxide anion (O2-) and leading to the onset of endothelial dysfunction. Moreover, the overexpression of ET-1 increases the endothelial and circulating levels of von Willebrand factor (vWF), a glycoprotein with a crucial role in arterial thrombus formation. Nowadays, the non-hemostatic role of endothelial vWF is emerging, although we do not yet know whether its increased expression is cause or consequence of endothelial dysfunction. Notably, the vWF blockade or depletion leads to endothelial protection in cultured cells, animal models of vascular injury, and patients as well. Despite the recent efforts to develop an effective pharmacological strategy, the onset of endothelial dysfunction is still difficult to prevent and remains closely related to adverse clinical outcome. Unraveling the non-hemostatic role of endothelial vWF in the onset of endothelial dysfunction could provide new avenues for protection against vascular injury mediated by AngII.
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Affiliation(s)
- Silvia Agostini
- a Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Vincenzo Lionetti
- a Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy.,b UOS Anesthesiology, Fondazione Toscana "G. Monasterio", Pisa, Italy
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34
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de Vries MR, Peters EAB, Quax PHA, Nossent AY. von Willebrand factor deficiency leads to impaired blood flow recovery after ischaemia in mice. Thromb Haemost 2017; 117:1412-1419. [PMID: 28382367 DOI: 10.1160/th16-12-0957] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 03/25/2017] [Indexed: 02/01/2023]
Abstract
Neovascularisation, i. e. arteriogenesis and angiogenesis, is an inflammatory process. Therefore attraction and extravasation of leukocytes is essential for effective blood flow recovery after ischaemia. Previous studies have shown that von Willebrand factor (VWF) is a negative regulator of angiogenesis. However, it has also been shown that VWF facilitates leukocyte attraction and extravasation. We aimed to investigate the role of VWF in arteriogenesis and angiogenesis during post-ischaemic neovascularisation. Wild-type (WT) and VWF deficient (VWF-/-) C57BL/6 mice were subjected to hindlimb ischaemia via double ligation of the left femoral artery, and blood flow recovery was followed over time, using Laser Doppler Perfusion Imaging. Blood flow recovery was impaired in VWF-/- mice. After 10 days, VWF-/- mice showed a 43 ± 5 % recovery versus 68 ± 5 % in WT. Immunohistochemistry revealed that both arteriogenesis in the adductor muscles and angiogenesis in the gastrocnemius muscles were reduced in VWF-/- mice. Furthermore, leukocyte infiltration in the affected adductor muscles was reduced in VWF-/- mice. Residual paw perfusion directly after artery ligation was also reduced in VWF-/- mice, indicating a decrease in pre-existing collateral arteriole density. When we quantified collateral arterioles, we observed a 31 % decrease in the average number of collateral arterioles in the pia mater compared to WT mice (57 ± 3 in WT vs 40 ± 4 pial collaterals in VWF-/-). We conclude that VWF facilitates blood flow recovery in mice. VWF deficiency hampers both arteriogenesis and angiogenesis in a hindlimb ischaemia model. This is associated with impaired leukocytes recruitment and decreased pre-existing collateral density in the absence of VWF.
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Affiliation(s)
| | | | | | - A Yaël Nossent
- A. Y. Nossent, PhD, Department of Surgery, D6-28, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, the Netherlands, Tel.: +31 71 52 65147, E-mail:
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35
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Behl T, Velpandian T, Kotwani A. Role of altered coagulation-fibrinolytic system in the pathophysiology of diabetic retinopathy. Vascul Pharmacol 2017; 92:1-5. [PMID: 28366840 DOI: 10.1016/j.vph.2017.03.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/28/2017] [Accepted: 03/24/2017] [Indexed: 01/28/2023]
Abstract
The implications of altered coagulation-fibrinolytic system in the pathophysiology of several vascular disorders, such as stroke and myocardial infarction, have been well researched upon and established. However, its role in the progression of diabetic retinopathy has not been explored much. Since a decade, it is known that hyperglycemia is associated with a hypercoagulated state and the various impairments it causes are well acknowledged as independent risk factors for the development of cardiovascular diseases. But recent studies suggest that the hypercoagulative state and diminished fibrinolytic responses might also alter retinal homeostasis and induce several deleterious molecular changes in retinal cells which aggravate the already existing hyperglycemia-induced pathological conditions and thereby lead to the progression of diabetic retinopathy. The major mediators of coagulation-fibrinolytic system whose concentration or activity get altered during hyperglycemia include fibrinogen, antithrombin-III (AT-III), plasminogen activator inhibitor-1 (PAI-1) and von Willebrand factor (vWF). Inhibiting the pathways by which these altered mediators get involved in the pathophysiology of diabetic retinopathy can serve as potential targets for the development of an adjuvant novel alternative therapy for diabetic retinopathy.
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Affiliation(s)
- Tapan Behl
- Department of Pharmacology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.
| | - Thirumurthy Velpandian
- Department of Ocular Pharmacology, Dr. Rajendra Prasad Centre for Ophthalmic Science, AIIMS, New Delhi, India
| | - Anita Kotwani
- Department of Pharmacology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
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36
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Mojiri A, Stoletov K, Lorenzana Carrillo MA, Willetts L, Jain S, Godbout R, Jurasz P, Sergi CM, Eisenstat DD, Lewis JD, Jahroudi N. Functional assessment of von Willebrand factor expression by cancer cells of non-endothelial origin. Oncotarget 2017; 8:13015-13029. [PMID: 28035064 PMCID: PMC5355073 DOI: 10.18632/oncotarget.14273] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 11/30/2016] [Indexed: 02/04/2023] Open
Abstract
Von Willebrand factor (VWF) is a highly adhesive procoagulant molecule that mediates platelet adhesion to endothelial and subendothelial surfaces. Normally it is expressed exclusively in endothelial cells (ECs) and megakaryocytes. However, a few studies have reported VWF detection in cancer cells of non-endothelial origin, including osteosarcoma. A role for VWF in cancer metastasis has long been postulated but evidence supporting both pro- and anti-metastatic roles for VWF has been presented. We hypothesized that the role of VWF in cancer metastasis is influenced by its cellular origin and that cancer cell acquisition of VWF expression may contribute to enhanced metastatic potential. We demonstrated de novo expression of VWF in glioma as well as osteosarcoma cells. Endothelial monolayer adhesion, transmigration and extravasation capacities of VWF expressing cancer cells were shown to be enhanced compared to non-VWF expressing cells, and were significantly reduced as a result of VWF knock down. VWF expressing cancer cells were also detected in patient tumor samples of varying histologies. Analyses of the mechanism of transcriptional activation of the VWF in cancer cells demonstrated a pattern of trans-activating factor binding and epigenetic modifications consistent overall with that observed in ECs. These results demonstrate that cancer cells of non-endothelial origin can acquire de novo expression of VWF, which can enhance processes, including endothelial and platelet adhesion and extravasation, that contribute to cancer metastasis.
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Affiliation(s)
- Anahita Mojiri
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | | | | | - Lian Willetts
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Saket Jain
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Roseline Godbout
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Paul Jurasz
- Department of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Consolato M. Sergi
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
| | - David D. Eisenstat
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
- Departments of Medical Genetics and Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - John D. Lewis
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Nadia Jahroudi
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
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Vrolyk V, Wobeser BK, Al-Dissi AN, Carr A, Singh B. Lung Inflammation Associated With Clinical Acute Necrotizing Pancreatitis in Dogs. Vet Pathol 2016; 54:129-140. [DOI: 10.1177/0300985816646432] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Although dogs with acute necrotizing pancreatitis (ANP) can develop respiratory complications, there are no data describing lung injury in clinical cases of ANP in dogs. Therefore, we conducted a study to characterize lung injury and determine if pulmonary intravascular macrophages (PIMs) are induced in dogs with ANP ( n = 21) compared with control dogs ( n = 6). Two pathologists independently graded histologic sections of pancreas from clinical cases to characterize the severity of ANP (total scores of 3–10) compared with controls showing histologically normal pancreas (total scores of 0). Based on histological grading, lungs from dogs with ANP showed inflammation (median score, 1.5; range, 0–3), but the scores did not differ statistically from the control lungs (median score, 0.5; range, 0–2). A grid intersects-counting method showed an increase in the numbers of MAC387-positive alveolar septal mononuclear phagocyte profiles in lungs of dogs with ANP (ratio median, 0.0243; range, 0.0093–0.0734, with 2 outliers at 0.1523 and 0.1978) compared with controls (ratio median, 0.0019; range, 0.0017–0.0031; P < .0001). Only dogs with ANP showed labeling for von Willebrand factor in alveolar septal capillary endothelial cells, septal inflammatory cells, and alveolar macrophages. Toll-like receptor 4 and interleukin 6 were variably expressed in alveolar macrophages and septal inflammatory cells in lungs from both ANP and control dogs. Inducible nitric oxide synthase was detected in alveolar macrophages of dogs with ANP only. These data show that dogs with ANP have lung inflammation, including the recruitment of PIMs and expression of inflammatory mediators.
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Affiliation(s)
- V. Vrolyk
- Departments of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - B. K. Wobeser
- Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - A. N. Al-Dissi
- Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - A. Carr
- Small Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - B. Singh
- Departments of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
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Genetic responses to seasonal variation in altitudinal stress: whole-genome resequencing of great tit in eastern Himalayas. Sci Rep 2015; 5:14256. [PMID: 26404527 PMCID: PMC4585896 DOI: 10.1038/srep14256] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 08/21/2015] [Indexed: 01/29/2023] Open
Abstract
Species that undertake altitudinal migrations are exposed to a considerable seasonal variation in oxygen levels and temperature. How they cope with this was studied in a population of great tit (Parus major) that breeds at high elevations and winters at lower elevations in the eastern Himalayas. Comparison of population genomics of high altitudinal great tits and those living in lowlands revealed an accelerated genetic selection for carbohydrate energy metabolism (amino sugar, nucleotide sugar metabolism and insulin signaling pathways) and hypoxia response (PI3K-akt, mTOR and MAPK signaling pathways) in the high altitudinal population. The PI3K-akt, mTOR and MAPK pathways modulate the hypoxia-inducible factors, HIF-1α and VEGF protein expression thus indirectly regulate hypoxia induced angiogenesis, erythropoiesis and vasodilatation. The strategies observed in high altitudinal great tits differ from those described in a closely related species on the Tibetan Plateau, the sedentary ground tit (Parus humilis). This species has enhanced selection in lipid-specific metabolic pathways and hypoxia-inducible factor pathway (HIF-1). Comparative population genomics also revealed selection for larger body size in high altitudinal great tits.
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Li Y, Li L, Dong F, Guo L, Hou Y, Hu H, Yan S, Zhou X, Liao L, Allen TD, Liu JU. Plasma von Willebrand factor level is transiently elevated in a rat model of acute myocardial infarction. Exp Ther Med 2015; 10:1743-1749. [PMID: 26640545 PMCID: PMC4665708 DOI: 10.3892/etm.2015.2721] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 08/07/2015] [Indexed: 01/17/2023] Open
Abstract
The von Willebrand factor (vWF) is a plasma glycoprotein that plays an essential role in hemostasis by supporting platelet adhesion and thrombus formation in response to vascular injury. Plasma levels of vWF are an independent risk factor for patients with acute myocardial infarction (AMI); however, clinical data have demonstrated a marked variation of vWF levels in patients with AMI, the reason for which has not yet been identified. In the present study, a rat model of ST-segment elevation AMI was established, and cardiac and peripheral blood was collected for a time-course examination of the plasma levels of vWF and tumor necrosis factor-α (TNF-α). The level of vWF in the blood plasma increased, peaked at 1 h and decreased to normal levels by day 7 following AMI, while the level of TNF-α peaked at 24 h and remained elevated until day 7. The effects of TNF-α on vWF secretion and expression were examined in cultured human umbilical vascular endothelial cells (HUVECs). TNF-α treatment increased vWF secretion from the HUVECs but inhibited the mRNA and protein expression of vWF in the HUVECs. These results indicate that vWF secretion from endothelial cells is transiently elevated following AMI, and then decreases as the expression of vWF is inhibited by TNF-α. The present study increases the understanding of the pathophysiology of vWF and indicates that the determination of vWF levels may be useful in the clinical evaluation of AMI.
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Affiliation(s)
- Yan Li
- Children's Health Care Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Liqun Li
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Fengyun Dong
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Ling Guo
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Yinglong Hou
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Hesheng Hu
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Suhua Yan
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Xiaojun Zhou
- Department of Endocrinology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Lin Liao
- Department of Endocrinology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Thaddeus D Allen
- G.W. Hooper Research Foundation, University of California at San Francisco, San Francisco, CA 94143-0552, USA
| | - J U Liu
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
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Aggarwal S, Gheware A, Agrawal A, Ghosh S, Prasher B, Mukerji M. Combined genetic effects of EGLN1 and VWF modulate thrombotic outcome in hypoxia revealed by Ayurgenomics approach. J Transl Med 2015; 13:184. [PMID: 26047609 PMCID: PMC4457985 DOI: 10.1186/s12967-015-0542-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 05/18/2015] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Extreme constitution "Prakriti" types of Ayurveda exhibit systemic physiological attributes. Our earlier genetic study has revealed differences in EGLN1, key modulator of hypoxia axis between Prakriti types. This was associated with differences in high altitude adaptation and susceptibility to high altitude pulmonary edema (HAPE). In this study we investigate other molecular differences that contribute to systemic attributes of Prakriti that would be relevant in predictive marker discovery. METHODS Genotyping of 96 individuals of the earlier cohort was carried out in a panel of 2,800 common genic SNPs represented in Indian Genomic Variation Consortium (IGVC) panel from 24 diverse populations. Frequency distribution patterns of Prakriti differentiating variations (FDR correction P < 0.05) was studied in IGVC and 55 global populations (HGDP-CEPH) panels. Genotypic interactions between VWF, identified from the present analysis, and EGLN1 was analyzed using multinomial logistic regression in Prakriti and Indian populations from contrasting altitudes. Spearman's Rank correlation was used to study this genotypic interaction with respect to altitude in HGDP-CEPH panel. Validation of functional link between EGLN1 and VWF was carried out in a mouse model using chemical inhibition and siRNA studies. RESULT Significant differences in allele frequencies were observed in seven genes (SPTA1, VWF, OLR1, UCP2, OR6K3, LEPR, and OR10Z1) after FDR correction (P < 0.05). A non synonymous variation (C/T, rs1063856) associated with thrombosis/bleeding susceptibility respectively, differed significantly between Kapha (C-allele) and Pitta (T-allele) constitution types. A combination of derived EGLN1 allele (HAPE associated) and ancestral VWF allele (thrombosis associated) was significantly high in Kapha group compared to Pitta (p < 10(-5)). The combination of risk-associated Kapha alleles was nearly absent in natives of high altitude. Inhibition of EGLN1 using (DHB) and an EGLN1 specific siRNA in a mouse model lead to a marked increase in vWF levels as well as pro-thrombotic phenotype viz. reduced bleeding time and enhanced platelet count and activation. CONCLUSION We demonstrate for the first time a genetic link between EGLN1 and VWF in a constitution specific manner which could modulate thrombosis/bleeding susceptibility and outcomes of hypoxia. Integration of Prakriti in population stratification may help assemble common variations in key physiological axes that confers differences in disease occurrence and patho-phenotypic outcomes.
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Affiliation(s)
- Shilpi Aggarwal
- Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi, India.
| | - Atish Gheware
- CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRough Ayurgenomics), CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi, 110 020, India. .,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
| | - Anurag Agrawal
- Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi, India. .,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
| | | | - Bhavana Prasher
- CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRough Ayurgenomics), CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi, 110 020, India. .,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
| | - Mitali Mukerji
- Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi, India. .,CSIR's Ayurgenomics Unit-TRISUTRA (Translational Research and Innovative Science ThRough Ayurgenomics), CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi, 110 020, India. .,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
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Morelle J, Sow A, Hautem N, Bouzin C, Crott R, Devuyst O, Goffin E. Interstitial Fibrosis Restricts Osmotic Water Transport in Encapsulating Peritoneal Sclerosis. J Am Soc Nephrol 2015; 26:2521-33. [PMID: 25636412 DOI: 10.1681/asn.2014090939] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Accepted: 12/24/2014] [Indexed: 12/27/2022] Open
Abstract
Encapsulating peritoneal sclerosis (EPS) is a rare but severe complication of peritoneal dialysis (PD) characterized by extensive fibrosis of the peritoneum. Changes in peritoneal water transport may precede EPS, but the mechanisms and potential predictive value of that transport defect are unknown. Among 234 patients with ESRD who initiated PD at our institution over a 20-year period, 7 subsequently developed EPS. We evaluated changes in peritoneal transport over time on PD in these 7 patients and in 28 matched controls using 3.86% glucose peritoneal equilibration tests. Compared with long-term PD controls, patients with EPS showed early loss of ultrafiltration capacity and sodium sieving before the onset of overt EPS. Multivariate analysis revealed that loss of sodium sieving was the most powerful predictor of EPS. Compared with long-term PD control and uremic peritoneum, EPS peritoneum showed thicker submesothelial fibrosis, with increased collagen density and a greater amount of thick collagen fibers. Reduced osmotic conductance strongly correlated with the degree of peritoneal fibrosis, but not with vasculopathy. Peritoneal fibrosis was paralleled by an excessive upregulation of vascular endothelial growth factor and endothelial nitric oxide synthase, but the expression of endothelial aquaporin-1 water channels was unaltered. Our findings suggest that an early and disproportionate reduction in osmotic conductance during the course of PD is an independent predictor of EPS. This functional change is linked to specific alterations of the collagen matrix in the peritoneal membrane of patients with EPS, thereby validating the serial three-pore membrane/fiber matrix and distributed models of peritoneal transport.
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Affiliation(s)
- Johann Morelle
- Division and Laboratory of Nephrology, Cliniques Universitaires Saint-Luc, Institute of Experimental and Clinical Research, Université Catholique de Louvain Medical School
| | - Amadou Sow
- Division and Laboratory of Nephrology, Cliniques Universitaires Saint-Luc, Institute of Experimental and Clinical Research, Université Catholique de Louvain Medical School
| | - Nicolas Hautem
- Division and Laboratory of Nephrology, Cliniques Universitaires Saint-Luc, Institute of Experimental and Clinical Research, Université Catholique de Louvain Medical School
| | - Caroline Bouzin
- Imaging Platform, Institute of Experimental and Clinical Research, and
| | - Ralph Crott
- School of Public Health, Université Catholique de Louvain Medical School, Brussels, Belgium; and
| | - Olivier Devuyst
- Division and Laboratory of Nephrology, Cliniques Universitaires Saint-Luc, Institute of Experimental and Clinical Research, Université Catholique de Louvain Medical School Institute of Physiology, Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Eric Goffin
- Division and Laboratory of Nephrology, Cliniques Universitaires Saint-Luc, Institute of Experimental and Clinical Research, Université Catholique de Louvain Medical School
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Yang L, Wang Y, Zhang Z, He S. Comprehensive transcriptome analysis reveals accelerated genic evolution in a Tibet fish, Gymnodiptychus pachycheilus. Genome Biol Evol 2014; 7:251-61. [PMID: 25543049 PMCID: PMC4316632 DOI: 10.1093/gbe/evu279] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Elucidating the genetic mechanisms of organismal adaptation to the Tibetan Plateau at a genomic scale can provide insights into the process of adaptive evolution. Many highland species have been investigated and various candidate genes that may be responsible for highland adaptation have been identified. However, we know little about the genomic basis of adaptation to Tibet in fishes. Here, we performed transcriptome sequencing of a schizothoracine fish (Gymnodiptychus pachycheilus) and used it to identify potential genetic mechanisms of highland adaptation. We obtained totally 66,105 assembled unigenes, of which 7,232 were assigned as putative one-to-one orthologs in zebrafish. Comparative gene annotations from several species indicated that at least 350 genes lost and 41 gained since the divergence between G. pachycheilus and zebrafish. An analysis of 6,324 orthologs among zebrafish, fugu, medaka, and spotted gar identified consistent evidence for genome-wide accelerated evolution in G. pachycheilus and only the terminal branch of G. pachycheilus had an elevated Ka/Ks ratio than the ancestral branch. Many functional categories related to hypoxia and energy metabolism exhibited rapid evolution in G. pachycheilus relative to zebrafish. Genes showing signature of rapid evolution and positive selection in the G. pachycheilus lineage were also enriched in functions associated with energy metabolism and hypoxia. The first genomic resources for fish in the Tibetan Plateau and evolutionary analyses provided some novel insights into highland adaptation in fishes and served as a foundation for future studies aiming to identify candidate genes underlying the genetic bases of adaptation to Tibet in fishes.
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Affiliation(s)
- Liandong Yang
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, People's Republic of China University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Ying Wang
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, People's Republic of China University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Zhaolei Zhang
- Department of Molecular Genetics, University of Toronto, Ontario, Canada Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Ontario, Canada
| | - Shunping He
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, People's Republic of China
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Endothelial progenitor cells and pulmonary arterial hypertension. Heart Lung Circ 2014; 23:595-601. [PMID: 24680485 DOI: 10.1016/j.hlc.2014.02.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Accepted: 02/17/2014] [Indexed: 01/23/2023]
Abstract
Pulmonary arterial hypertension (PAH) is a progressive disease characterised by lung endothelial cell dysfunction and vascular remodelling. A number of studies now suggest that endothelial progenitor cells (EPCs) may induce neovascularisation and could be a promising approach for cell based therapy for PAH. On the contrary EPCs may contribute to pulmonary vascular remodelling, particularly in end-stage pulmonary disease. This review article will provide a brief summary of the relationship between PAH and EPCs, the application of the EPCs to PAH and highlight the potential clinical application of the EPCs cell therapy to PAH.
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