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Liu KT, Wang PW, Hsieh HY, Pan HC, Chin HJ, Lin CW, Huang YJ, Liao YC, Tsai YC, Liu SR, Su IC, Song YF, Yin GC, Wu KC, Chuang EY, Fan YJR, Yu J. Site-specific thrombus formation: advancements in photothrombosis-on-a-chip technology. LAB ON A CHIP 2024. [PMID: 38860416 DOI: 10.1039/d4lc00216d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Thrombosis, characterized by blood clot formation within vessels, poses a significant medical challenge. Despite extensive research, the development of effective thrombosis therapies is hindered by substantial costs, lengthy development times, and high failure rates in medication commercialization. Conventional pre-clinical models often oversimplify cardiovascular disease, leading to a disparity between experimental results and human physiological responses. In response, we have engineered a photothrombosis-on-a-chip system. This microfluidic model integrates human endothelium, human whole blood, and blood flow dynamics and employs the photothrombotic method. It enables precise, site-specific thrombus induction through controlled laser irradiation, effectively mimicking both normal and thrombotic physiological conditions on a single chip. Additionally, the system allows for the fine-tuning of thrombus occlusion levels via laser parameter adjustments, offering a flexible thrombus model with varying degrees of obstruction. Additionally, the formation and progression of thrombosis noted on the chip closely resemble the thrombotic conditions observed in mice in previous studies. In the experiments, we perfused recalcified whole blood with Rose Bengal into an endothelialized microchannel and initiated photothrombosis using green laser irradiation. Various imaging methods verified the model's ability to precisely control thrombus formation and occlusion levels. The effectiveness of clinical drugs, including heparin and rt-PA, was assessed, confirming the chip's potential in drug screening applications. In summary, the photothrombosis-on-a-chip system significantly advances human thrombosis modeling. Its precise control over thrombus formation, flexibility in the thrombus severity levels, and capability to simulate dual physiological states on a single platform make it an invaluable tool for targeted drug testing, furthering the development of organ-on-a-chip drug screening techniques.
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Affiliation(s)
- Kuan-Ting Liu
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.
| | - Pai-Wen Wang
- Institute of Applied Mechanics, National Taiwan University, Taipei 10617, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 11031, Taiwan
| | - Han-Yun Hsieh
- Department of Biochemical and Molecular Medical Science, National Dong Hwa University, Hualien 97401, Taiwan
| | - Han-Chi Pan
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei 115021, Taiwan
| | - Hsian-Jean Chin
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei 115021, Taiwan
| | - Che-Wei Lin
- School of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yu-Jen Huang
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.
| | - Yung-Chieh Liao
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.
| | - Ya-Chun Tsai
- Institute of Applied Mechanics, National Taiwan University, Taipei 10617, Taiwan
| | - Shang-Ru Liu
- Institute of Applied Mechanics, National Taiwan University, Taipei 10617, Taiwan
| | - I-Chang Su
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 11031, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department of Neurosurgery, Taipei Medical University-Shuang Ho Hospital, Ministry of Health and Welfare, New Taipei City, 23561, Taiwan
| | - Yen-Fang Song
- National Synchrotron Radiation Research Center, Hsinchu 300092, Taiwan
| | - Gung-Chian Yin
- National Synchrotron Radiation Research Center, Hsinchu 300092, Taiwan
| | - Kuang-Chong Wu
- Institute of Applied Mechanics, National Taiwan University, Taipei 10617, Taiwan
| | - Er-Yuan Chuang
- School of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yu-Jui Ray Fan
- School of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Jiashing Yu
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.
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Yaita N, Maruyama K, Hiroyasu K, Sato S. Immunogenic effects of enamel matrix derivative on human alveolar ridge mucosa-derived vascular endothelial cells under lipopolysaccharide stimulation. Odontology 2024:10.1007/s10266-024-00959-5. [PMID: 38839677 DOI: 10.1007/s10266-024-00959-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 05/28/2024] [Indexed: 06/07/2024]
Abstract
Early peri-implant disease detection remains difficult. Enamel matrix derivative (EMD), which is used for periodontal tissue regeneration, promotes leukocyte chemotactic factor and adhesion molecule expression in vascular endothelial cells. We hypothesized that stimulating vascular endothelial cells with EMD would induce an inflammatory response in the peri-implant mucosa, enabling early peri-implant infection detection. To verify this hypothesis, we assessed the intercellular adhesion between human alveolar ridge mucosa-derived vascular endothelial cells (ARMEC) stimulated with lipopolysaccharide (LPS) and EMD and human periodontal ligament-derived vascular endothelial cells (PDLEC). Leukocyte chemotactic factors and cell adhesion molecules were investigated and we established an experimental model of peri-implant disease by stimulating ARMEC (representing the peri-implant mucosa) with Porphyromonas gingivalis-derived LPS. ARMEC and PDLEC were obtained from patients (n = 6) who visited the Nippon Dental University Niigata Hospital. The cells were divided into four subcategories, each cultured with: LPS (1 µg/mL), EMD (100 µg/mL), LPS + EMD, and pure medium. Cell viability, leukocyte chemotactic factor (interleukin-8: IL-8), adhesion molecules (intercellular adhesion molecule-1: ICAM-1), tight junction protein gene expression (zonula occludens-1: ZO-1 and Occludin), and transendothelial electrical resistance (TEER) was then determined. LPS reduced ARMEC viability, whereas simultaneous stimulation with EMD improved it. LPS and EMD stimulation enhanced IL-8 and ICAM-1 gene expression, suppressed TEER, and decreased ZO-1 and Occludin expression levels compared to that with stimulation with LPS alone. EMD stimulates leukocyte migration, increase vascular permeability, and trigger an immune response in the peri-implant mucosa, thus facilitating the early detection and treatment of peri-implant disease.
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Affiliation(s)
- Naomichi Yaita
- Field of Advanced Conservative Dentistry and Periodontology, Periodontology, Course of Clinical Science, The Nippon Dental University Graduate School Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan.
| | - Kosuke Maruyama
- Department of Periodontology, The Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan
| | - Kazuhiko Hiroyasu
- Oral Implant Care Unit Niigata Hospital, The Nippon Dental University, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan
| | - Soh Sato
- Field of Advanced Conservative Dentistry and Periodontology, Periodontology, Course of Clinical Science, The Nippon Dental University Graduate School Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan
- Department of Periodontology, The Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan
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3
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Zhang L, Chi J, Wu H, Xia X, Xu C, Hao H, Liu Z. Extracellular vesicles and endothelial dysfunction in infectious diseases. JOURNAL OF EXTRACELLULAR BIOLOGY 2024; 3:e148. [PMID: 38938849 PMCID: PMC11080793 DOI: 10.1002/jex2.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/20/2024] [Accepted: 03/14/2024] [Indexed: 06/29/2024]
Abstract
Cardiovascular diseases (CVDs) remain the leading cause of mortality and morbidity globally. Studies have shown that infections especially bacteraemia and sepsis are associated with increased risks for endothelial dysfunction and related CVDs including atherosclerosis. Extracellular vesicles (EVs) are small, sealed membrane-derived structures that are released into body fluids and blood from cells and/or microbes and are critically involved in a variety of important cell functions and disease development, including intercellular communications, immune responses and inflammation. It is known that EVs-mediated mechanism(s) is important in the development of endothelial dysfunction in infections with a diverse spectrum of microorganisms including Escherichia coli, Candida albicans, SARS-CoV-2 (the virus for COVID-19) and Helicobacter pylori. H. pylori infection is one of the most common infections globally. During H. pylori infection, EVs can carry H. pylori components, such as lipopolysaccharide, cytotoxin-associated gene A, or vacuolating cytotoxin A, and transfer these substances into endothelial cells, triggering inflammatory responses and endothelial dysfunction. This review is to illustrate the important role of EVs in the pathogenesis of infectious diseases, and the development of endothelial dysfunction in infectious diseases especially H. pylori infection, and to discuss the potential mechanisms and clinical implications.
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Affiliation(s)
- Linfang Zhang
- Department of GastroenterologyThe Second Affiliated Hospital of Nanchang UniversityNanchangJiangxiChina
- Center for Precision Medicine and Division of Cardiovascular MedicineDepartment of MedicineUniversity of Missouri School of MedicineColumbiaMissouriUSA
| | - Jingshu Chi
- Center for Precision Medicine and Division of Cardiovascular MedicineDepartment of MedicineUniversity of Missouri School of MedicineColumbiaMissouriUSA
- Department of Gastroenterologythe Third Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Hao Wu
- Center for Precision Medicine and Division of Cardiovascular MedicineDepartment of MedicineUniversity of Missouri School of MedicineColumbiaMissouriUSA
| | - Xiujuan Xia
- Center for Precision Medicine and Division of Cardiovascular MedicineDepartment of MedicineUniversity of Missouri School of MedicineColumbiaMissouriUSA
| | - Canxia Xu
- Department of Gastroenterologythe Third Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Hong Hao
- Center for Precision Medicine and Division of Cardiovascular MedicineDepartment of MedicineUniversity of Missouri School of MedicineColumbiaMissouriUSA
| | - Zhenguo Liu
- Center for Precision Medicine and Division of Cardiovascular MedicineDepartment of MedicineUniversity of Missouri School of MedicineColumbiaMissouriUSA
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Agbemavor WSK, Buys EM. Dynamic Interactions between Diarrhoeagenic Enteroaggregative Escherichia coli and Presumptive Probiotic Bacteria: Implications for Gastrointestinal Health. Microorganisms 2023; 11:2942. [PMID: 38138086 PMCID: PMC10745617 DOI: 10.3390/microorganisms11122942] [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: 10/29/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
This study delves into the temporal dynamics of bacterial interactions in the gastrointestinal tract, focusing on how probiotic strains and pathogenic bacteria influence each other and human health. This research explores adhesion, competitive exclusion, displacement, and inhibition of selected diarrhoeagenic Escherichia coli (D-EAEC) and potential probiotic strains under various conditions. Key findings reveal that adhesion is time-dependent, with both D-EAEC K2 and probiotic L. plantarum FS2 showing increased adhesion over time. Surprisingly, L. plantarum FS2 outperformed D-EAEC K2 in adhesion and exhibited competitive exclusion and displacement, with inhibition of adhesion surpassing competitive exclusion. This highlights probiotics' potential to slow pathogen attachment when not in competition. Pre-infecting with L. plantarum FS2 before pathogenic infection effectively inhibited adhesion, indicating probiotics' ability to prevent pathogen attachment. Additionally, adhesion correlated strongly with interleukin-8 (IL-8) secretion, linking it to the host's inflammatory response. Conversely, IL-8 secretion negatively correlated with trans-epithelial electrical resistance (TEER), suggesting a connection between tight junction disruption and increased inflammation. These insights offer valuable knowledge about the temporal dynamics of gut bacteria interactions and highlight probiotics' potential in competitive exclusion and inhibiting pathogenic bacteria, contributing to strategies for maintaining gastrointestinal health and preventing infections.
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Affiliation(s)
- Wisdom Selorm Kofi Agbemavor
- Department of Consumer and Food Sciences, University of Pretoria, Private Bag X20, Pretoria 0028, South Africa
- Radiation Technology Centre, Biotechnology and Nuclear Agriculture Research Institute, Ghana Atomic Energy Commission, Legon, Accra P.O. Box LG 80, Ghana
| | - Elna Maria Buys
- Department of Consumer and Food Sciences, University of Pretoria, Private Bag X20, Pretoria 0028, South Africa
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Jain S, Vimal N, Angmo N, Sengupta M, Thangaraj S. Dengue Vaccination: Towards a New Dawn of Curbing Dengue Infection. Immunol Invest 2023; 52:1096-1149. [PMID: 37962036 DOI: 10.1080/08820139.2023.2280698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Dengue is an infectious disease caused by dengue virus (DENV) and is a serious global burden. Antibody-dependent enhancement and the ability of DENV to infect immune cells, along with other factors, lead to fatal Dengue Haemorrhagic Fever and Dengue Shock Syndrome. This necessitates the development of a robust and efficient vaccine but vaccine development faces a number of hurdles. In this review, we look at the epidemiology, genome structure and cellular targets of DENV and elaborate upon the immune responses generated by human immune system against DENV infection. The review further sheds light on various challenges in development of a potent vaccine against DENV which is followed by presenting a current account of different vaccines which are being developed or have been licensed.
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Affiliation(s)
- Sidhant Jain
- Independent Researcher, Institute for Globally Distributed Open Research and Education (IGDORE), Rewari, India
| | - Neha Vimal
- Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi, India
| | - Nilza Angmo
- Maitreyi College, University of Delhi, Delhi, India
| | - Madhumita Sengupta
- Janki Devi Bajaj Government Girls College, University of Kota, Kota, India
| | - Suraj Thangaraj
- Swami Ramanand Teerth Rural Government Medical College, Maharashtra University of Health Sciences, Ambajogai, India
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6
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Mosquera-Sulbaran JA, Pedreañez A, Hernandez-Fonseca JP, Hernandez-Fonseca H. Angiotensin II and dengue. Arch Virol 2023; 168:191. [PMID: 37368044 DOI: 10.1007/s00705-023-05814-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 05/09/2023] [Indexed: 06/28/2023]
Abstract
Dengue is a disease caused by a flavivirus that is transmitted principally by the bite of an Aedes aegypti mosquito and represents a major public-health problem. Many studies have been carried out to identify soluble factors that are involved in the pathogenesis of this infection. Cytokines, soluble factors, and oxidative stress have been reported to be involved in the development of severe disease. Angiotensin II (Ang II) is a hormone with the ability to induce the production of cytokines and soluble factors related to the inflammatory processes and coagulation disorders observed in dengue. However, a direct involvement of Ang II in this disease has not been demonstrated. This review primarily summarizes the pathophysiology of dengue, the role of Ang II in various diseases, and reports that are highly suggestive of the involvement of this hormone in dengue.
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Affiliation(s)
- Jesus A Mosquera-Sulbaran
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, 4001-A, Venezuela.
| | - Adriana Pedreañez
- Cátedra de Inmunología, Escuela de Bioanálisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Juan Pablo Hernandez-Fonseca
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, 4001-A, Venezuela
- Servicio de Microscopia Electronica del Centro Nacional de Biotecnologia (CNB- CSIC) Madrid, Madrid, España
| | - Hugo Hernandez-Fonseca
- Department of Anatomy, Physiology and Pharmacology, School of Veterinary Medicine, Saint George's University, True Blue, West Indies, Grenada
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Huang X, Liang F, Huang B, Luo H, Shi J, Wang L, Peng J, Chen Y. On-chip real-time impedance monitoring of hiPSC-derived and artificial basement membrane-supported endothelium. Biosens Bioelectron 2023; 235:115324. [PMID: 37201240 DOI: 10.1016/j.bios.2023.115324] [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: 01/25/2023] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 05/20/2023]
Abstract
Recent advances have shown the high sensibility of electrochemical impedance spectroscopy in real-time monitoring of cell barriers on a chip. Here, we applied this method to the investigation of human induced pluripotent stem cell (hiPSC) derived and artificial basement membrane (ABM) supported endothelial barrier. The ABM was obtained by self-assembling type IV collagen and laminin with a monolayer of crosslinked gelatin nanofibers. The hiPSCs were differentiated into brain microvascular endothelial cells (BMECs) and then plated on the ABM. After incubation for two days, the ABM-BMEC assembly was placed as a tissue insert into a microfluidic device for culture and real-time impedance monitoring over days. We found a significantly enhanced stability of the BMEC barrier in a serum-free and bromodeoxyuridine (BrdU) containing culture medium compared to the conventional culture due to the restricted cell proliferation. We also found that the BMEC barrier was sensitive to stimuli such as thrombin and that the change of the barrier impedance was mainly due to the change of the cell layer resistance. We can thus advocate this method to investigate the integrity of the cell barrier and the barrier-based assays.
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Affiliation(s)
- Xiaochen Huang
- École Normale Supérieure-PSL Research University, Département de Chimie, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, Rue Lhomond, 75005, Paris, France
| | - Feng Liang
- École Normale Supérieure-PSL Research University, Département de Chimie, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, Rue Lhomond, 75005, Paris, France
| | - Boxin Huang
- École Normale Supérieure-PSL Research University, Département de Chimie, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, Rue Lhomond, 75005, Paris, France
| | - Haoyue Luo
- École Normale Supérieure-PSL Research University, Département de Chimie, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, Rue Lhomond, 75005, Paris, France
| | - Jian Shi
- MesoBioTech, 231 Rue Saint-Honoré, 75001, Paris, France
| | - Li Wang
- MesoBioTech, 231 Rue Saint-Honoré, 75001, Paris, France
| | - Juan Peng
- École Normale Supérieure-PSL Research University, Département de Chimie, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, Rue Lhomond, 75005, Paris, France.
| | - Yong Chen
- École Normale Supérieure-PSL Research University, Département de Chimie, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, Rue Lhomond, 75005, Paris, France.
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Ng CT, Fong LY, Abdullah MNH. Interferon-gamma (IFN-γ): Reviewing its mechanisms and signaling pathways on the regulation of endothelial barrier function. Cytokine 2023; 166:156208. [PMID: 37088004 DOI: 10.1016/j.cyto.2023.156208] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/25/2023]
Abstract
Interferon-gamma (IFN-γ) is a pleiotropic cytokine that plays a critical role in mediating an array of immune responses including promotes antiviral activity, facilitates macrophage activation, controls Th1/Th2 balance, and regulates cellular apoptosis and proliferation. A few articles have previously reviewed the effects of IFN-γ in the regulation of barrier permeability, but none of these articles focuses on barrier function of endothelial cells. This review aims to discuss the regulatory mechanisms of IFN-γ on endothelial barrier function and its underlying signaling pathways. Articles were retrieved from electronic databases such as PubMed and Google Scholar using keywords "Interferon-gamma", "endothelial cells", "barrier function", and "signaling pathway". The articles published between 2000 and 2022 that are related to the aforementioned topics were selected. A few journals published beyond this period were also included due to limited information available. The results showed that IFN-γ modulates endothelial barrier function, mainly involves small GTPases, STAT1-dependent pathway, p38 MAPK and nitric oxide. In conclusion, more in depth cellular and molecular studies are needed to elucidate the pathways of IFN-γ in the regulation of endothelial barrier function.
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Affiliation(s)
- Chin Theng Ng
- Unit of Physiology, Faculty of Medicine, AIMST University, Bedong, 08100 Kedah, Malaysia.
| | - Lai Yen Fong
- Department of Pre-clinical Sciences, M. Kandiah Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Kajang, 43000 Selangor, Malaysia
| | - Muhammad Nazrul Hakim Abdullah
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43400 Selangor, Malaysia
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Ritter AC, Ricart Arbona RJ, Livingston RS, Monette S, Lipman NS. Effects of Mouse Kidney Parvovirus on Pharmacokinetics of Chemotherapeutics and the Adenine Model of Chronic Kidney Disease. Comp Med 2023; 73:153-172. [PMID: 36973002 PMCID: PMC10162380 DOI: 10.30802/aalas-cm-22-000084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 10/21/2022] [Accepted: 12/07/2022] [Indexed: 03/29/2023]
Abstract
Mouse kidney parvovirus (MKPV) causes inclusion body nephropathy in severely immunocompromised mice and renal interstitial inflammation in immunocompetent mice. Here we sought to determine the effects of MKPV on pre-clinical murine models that depend on renal function. To assess the effects of MKPV infection on the pharmacokinetics of 2 renally excreted chemotherapeutic agents, methotrexate and lenalidomide, we measured drug concentrations in the blood and urine of MKPV-infected or uninfected immunodeficient NOD.Cg-PrkdcscidIl2rgtm1Wjl/SzJ (NSG) and immunocompetent C57BL/6NCrl (B6) female mice. No differences in plasma pharmacokinetics were observed for lenalidomide. However, the AUC of methotrexate was 1.5-fold higher in uninfected NSG mice compared with infected NSG mice, 1.9-fold higher in infected B6 mice compared with uninfected B6 mice, and 4.3-fold higher in uninfected NSG mice compared with uninfected B6 mice. MKPV infection did not significantly affect the renal clearance of either drug. To assess effects of MKPV infection on the adenine diet model of chronic kidney disease, MKPV-infected and uninfected B6 female mice were fed a 0.2% adenine diet, and clinical and histopathologic features of disease were assessed over 8 wk. MKPV infection did not significantly alter urine chemistry results, hemogram findings, or serum concentrations of BUN, creatinine, or symmetric dimethylarginine. However, infection did influence histologic outcomes. As compared with uninfected mice, MKPV-infected mice had more interstitial lymphoplasmacytic infiltrates after 4 and 8 wk of diet consumption and less interstitial fibrosis at week 8. Macrophage infiltrates and renal tubular injury were similar between in infected and uninfected mice. These findings indicate that MKPV infection had minimal effects on the renal excretion of 2 chemotherapeutics and on serum biomarkers of renal function. However, infection significantly influenced two histologic features of the adenine diet model of chronic renal disease. MKPV-free mice are critically important in studies evaluating renal histology as an experimental outcome.
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Affiliation(s)
- Amanda C Ritter
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York
| | - Rodolfo J Ricart Arbona
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York
- Center for Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York; and
| | | | - Sébastien Monette
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York
- Center for Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York; and
| | - Neil S Lipman
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York
- Center for Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York; and
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Sootichote R, Puangmanee W, Benjathummarak S, Kowaboot S, Yamanaka A, Boonnak K, Ampawong S, Chatchen S, Ramasoota P, Pitaksajjakul P. Potential Protective Effect of Dengue NS1 Human Monoclonal Antibodies against Dengue and Zika Virus Infections. Biomedicines 2023; 11:biomedicines11010227. [PMID: 36672734 PMCID: PMC9855337 DOI: 10.3390/biomedicines11010227] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 01/18/2023] Open
Abstract
Due to the lack of an effective therapeutic treatment to flavivirus, dengue virus (DENV) nonstructural protein 1 (NS1) has been considered to develop a vaccine owing to its lack of a role in antibody-dependent enhancement (ADE). However, both NS1 and its antibody have shown cross-reactivity to host molecules and have stimulated anti-DENV NS1 antibody-mediated endothelial damage and platelet dysfunction. To overcome the pathogenic events and reactogenicity, human monoclonal antibodies (HuMAbs) against DENV NS1 were generated from DENV-infected patients. Herein, the four DENV NS1-specific HuMAbs revealed the therapeutic effects in viral neutralization, reduction of viral replication, and enhancement of cell cytolysis of DENV and zika virus (ZIKV) via complement pathway. Furthermore, we demonstrate that DENV and ZIKV NS1 trigger endothelial dysfunction, leading to vascular permeability in vitro. Nevertheless, the pathogenic effects from NS1 were impeded by 2 HuMAbs (D25-4D4C3 and D25-2B11E7) and also protected the massive cytokines stimulation (interleukin [IL-]-1b, IL-1ra, IL-2, IL-4, IL-5, IL-6, IL-8, IL-9, IL-13, IL-17, eotaxin, granulocyte colony-stimulating factor, granulocyte-macrophage colony-stimulating factor, Inducible protein-10, monocyte chemoattractant protein-1, macrophage inflammatory protein [MIP]-1 α, MIP-1β, tumor necrosis factor-α, platelet-derived growth factor, and RANTES). Collectively, our findings suggest that the novel protective NS1 monoclonal antibodies generated from humans has multiple therapeutic benefits against DENV and ZIKV infections.
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Affiliation(s)
- Rochanawan Sootichote
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Wilarat Puangmanee
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Surachet Benjathummarak
- Center of Excellence for Antibody Research, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Siriporn Kowaboot
- Faculty of Medical Technology, Rangsit University, Pathumthani 12000, Thailand
| | - Atsushi Yamanaka
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Korbporn Boonnak
- Department of Immunology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Sumate Ampawong
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Supawat Chatchen
- Department of Tropical Pediatrics, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Pongrama Ramasoota
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
- Center of Excellence for Antibody Research, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Pannamthip Pitaksajjakul
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
- Center of Excellence for Antibody Research, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
- Correspondence: ; Tel.: +66-023069186 or +66-0899858305
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Nicolicht-Amorim P, Delgado-Garcia LM, Nakamura TKE, Courbassier NR, Mosini AC, Porcionatto MA. Simple and efficient protocol to isolate and culture brain microvascular endothelial cells from newborn mice. Front Cell Neurosci 2022; 16:949412. [PMID: 36313615 PMCID: PMC9606660 DOI: 10.3389/fncel.2022.949412] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 09/06/2022] [Indexed: 10/09/2023] Open
Abstract
The neurovascular unit (NVU) is a multicellular structure comprising of neurons, glial cells, and non-neural cells, and it is supported by a specialized extracellular matrix, the basal lamina. Astrocytes, brain microvascular endothelial cells (BMECs), pericytes, and smooth muscle cells constitute the blood-brain barrier (BBB). BMECs have a mesodermal origin and invade the nervous system early in neural tube development, forming the BBB anatomical core. BMECs are connected by adherent junction complexes composed of integral membrane and cytoplasmic proteins. In vivo and in vitro studies have shown that, given the proximity and relationship with neural cells, BMECs acquire a unique gene expression profile, proteome, and specific mechanical and physical properties compared to endothelial cells from the general vasculature. BMECs are fundamental in maintaining brain homeostasis by regulating transcellular and paracellular transport of fluids, molecules, and cells. Therefore, it is essential to gain in-depth knowledge of the dynamic cellular structure of the cells in the NVU and their interactions with health and disease. Here we describe a significantly improved and simplified protocol using C57BL/6 newborn mice at postnatal day 1 (PND1) to isolate, purify, and culture BMECs monolayers in two different substrates (glass coverslips and transwell culture inserts). In vitro characterization and validation of the BMEC primary culture monolayers seeded on glass or insert included light microscopy, immunolabeling, and gene expression profile. Transendothelial electrical resistance (TEER) measurement and diffusion test were used as functional assays for adherent junction complexes and integrity and permeability of BMECs monolayers. The protocol presented here for the isolation and culture of BMECs is more straightforward than previously published protocols and yields a high number of purified cells. Finally, we tested BMECs function using the oxygen-glucose deprivation (OGD) model of hypoxia. This protocol may be suitable as a bioscaffold for secondary cell seeding allowing the study and better understanding of the NVU.
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Affiliation(s)
- Priscila Nicolicht-Amorim
- Laboratory of Molecular Neurobiology, Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Lina M. Delgado-Garcia
- Laboratory of Molecular Neurobiology, Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Natália Rodrigues Courbassier
- Laboratory of Molecular Neurobiology, Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Amanda Cristina Mosini
- Laboratory of Neurobiology, Department of Physiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Marimelia A. Porcionatto
- Laboratory of Molecular Neurobiology, Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
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12
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Benfrid S, Park K, Dellarole M, Voss JE, Tamietti C, Pehau‐Arnaudet G, Raynal B, Brûlé S, England P, Zhang X, Mikhailova A, Hasan M, Ungeheuer M, Petres S, Biering SB, Harris E, Sakuntabhai A, Buchy P, Duong V, Dussart P, Coulibaly F, Bontems F, Rey FA, Flamand M. Dengue virus NS1 protein conveys pro-inflammatory signals by docking onto high-density lipoproteins. EMBO Rep 2022; 23:e53600. [PMID: 35607830 PMCID: PMC10549233 DOI: 10.15252/embr.202153600] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 10/05/2023] Open
Abstract
The dengue virus nonstructural protein 1 (NS1) is a secreted virulence factor that modulates complement, activates immune cells and alters endothelial barriers. The molecular basis of these events remains incompletely understood. Here we describe a functional high affinity complex formed between NS1 and human high-density lipoproteins (HDL). Collapse of the soluble NS1 hexamer upon binding to the lipoprotein particle leads to the anchoring of amphipathic NS1 dimeric subunits into the HDL outer layer. The stable complex can be visualized by electron microscopy as a spherical HDL with rod-shaped NS1 dimers protruding from the surface. We further show that the assembly of NS1-HDL complexes triggers the production of pro-inflammatory cytokines in human primary macrophages while NS1 or HDL alone do not. Finally, we detect NS1 in complex with HDL and low-density lipoprotein (LDL) particles in the plasma of hospitalized dengue patients and observe NS1-apolipoprotein E-positive complexes accumulating overtime. The functional reprogramming of endogenous lipoprotein particles by NS1 as a means to exacerbate systemic inflammation during viral infection provides a new paradigm in dengue pathogenesis.
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Affiliation(s)
- Souheyla Benfrid
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Université Paris Descartes SorbonneParis CitéFrance
- Present address:
Laboratoire de Santé AnimaleANSES, INRA, ENVA, UMR 1161Université Paris‐EstMaisons‐AlfortFrance
| | - Kyu‐Ho Park
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Present address:
Applied Molecular VirologyInstitut Pasteur KoreaSeongnam‐siKorea
| | - Mariano Dellarole
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Present address:
Virus Biophysics LaboratoryBionanosciences Research Center (CIBION)National Scientific and Technical Research Council (CONICET)Ciudad Autónoma de Buenos AiresArgentina
| | - James E Voss
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Present address:
Department of Immunology and MicrobiologyThe Scripps Research InstituteLa JollaCAUSA
| | - Carole Tamietti
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
| | | | - Bertrand Raynal
- Molecular Biophysics FacilityCNRS UMR 3528Institut PasteurParisFrance
| | - Sébastien Brûlé
- Molecular Biophysics FacilityCNRS UMR 3528Institut PasteurParisFrance
| | - Patrick England
- Molecular Biophysics FacilityCNRS UMR 3528Institut PasteurParisFrance
| | - Xiaokang Zhang
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Present address:
Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulationthe Brain Cognition and Brain Disease Institute (BCBDI)Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen‐Hong Kong Institute of Brain Science‐Shenzhen Fundamental Research InstitutionsShenzhenChina
| | - Anastassia Mikhailova
- HIV Inflammation et PersistanceInstitut PasteurParisFrance
- Present address:
Division of Molecular NeurobiologyDepartment of Medical Biochemistry and BiophysicsKarolinska InstituteStockholmSweden
| | - Milena Hasan
- Cytometry and Biomarkers Unit of Technology and ServiceCB UTechSParisFrance
| | | | - Stéphane Petres
- Production and Purification of Recombinant Proteins FacilityInstitut PasteurParisFrance
| | - Scott B Biering
- Division of Infectious Diseases and VaccinologySchool of Public HealthUniversity of CaliforniaBerkeleyCAUSA
| | - Eva Harris
- Division of Infectious Diseases and VaccinologySchool of Public HealthUniversity of CaliforniaBerkeleyCAUSA
| | | | - Philippe Buchy
- Virology UnitInstitut Pasteur du CambodgeInstitut Pasteur International NetworkPhnom PenhCambodia
- Present address:
GlaxoSmithKline Vaccines R&DSingaporeSingapore
| | - Veasna Duong
- Virology UnitInstitut Pasteur du CambodgeInstitut Pasteur International NetworkPhnom PenhCambodia
| | - Philippe Dussart
- Virology UnitInstitut Pasteur du CambodgeInstitut Pasteur International NetworkPhnom PenhCambodia
| | - Fasséli Coulibaly
- Department of Biochemistry and Molecular BiologyMonash UniversityClaytonVic.Australia
| | - François Bontems
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Département de Biologie et Chimie StructuralesInstitut de Chimie des Substances Naturelles, CNRS UPR2301Gif‐sur‐YvetteFrance
| | - Félix A Rey
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
| | - Marie Flamand
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
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13
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Liu Z, Liu Q, Zhang B, Liu Q, Fang L, Gou S. Blood-Brain Barrier Permeable and NO-Releasing Multifunctional Nanoparticles for Alzheimer's Disease Treatment: Targeting NO/cGMP/CREB Signaling Pathways. J Med Chem 2021; 64:13853-13872. [PMID: 34517696 DOI: 10.1021/acs.jmedchem.1c01240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The development of novel therapeutic strategies for combating Alzheimer's disease (AD) is challenging but imperative. Multifunctional nanoparticles are promising tools for regulating complex pathological dysfunctions for AD treatment. Herein, we constructed multifunctional nanoparticles consisting of regadenoson (Reg), nitric oxide (NO) donor, and YC-1 in a single molecular entity that can spontaneously self-assemble into nanoparticles and load donepezil to yield Reg-nanoparticles (Reg-NPs). The Reg moiety enabled the Reg-NPs to effectively regulate tight junction-associated proteins in the blood-brain barrier, thus facilitating the permeation of donepezil through the barrier and its accumulation in the brain. Moreover, the released NO and YC-1 activated the NO/cGMP/CREB signaling pathway by stimulating soluble guanylyl cyclase and inhibiting phosphodiesterase activity, which finally reduced cytotoxicity induced by aggregated Aβ in the neurons and was beneficial for synaptic plasticity and memory formation.
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Affiliation(s)
- Zhikun Liu
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Qingqing Liu
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Bin Zhang
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Qiao Liu
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Lei Fang
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Shaohua Gou
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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14
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Lithgow KV, Tsao E, Schovanek E, Gomez A, Swayne LA, Cameron CE. Treponema pallidum Disrupts VE-Cadherin Intercellular Junctions and Traverses Endothelial Barriers Using a Cholesterol-Dependent Mechanism. Front Microbiol 2021; 12:691731. [PMID: 34354688 PMCID: PMC8329343 DOI: 10.3389/fmicb.2021.691731] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 06/08/2021] [Indexed: 11/13/2022] Open
Abstract
Treponema pallidum subspecies pallidum, the causative agent of syphilis, traverses the vascular endothelium to gain access to underlying tissue sites. Herein, we investigate the mechanisms associated with T. pallidum traversal of endothelial barriers. Immunofluorescence microscopy reveals that a subpopulation of T. pallidum localizes to intercellular junctions and that viable T. pallidum, as well as a T. pallidum vascular adhesin (Tp0751), disrupts the architecture of the main endothelial junctional protein VE-cadherin. Intriguingly, in this study we show that T. pallidum traverses endothelial barriers with no disruption in barrier permeability. Furthermore, barrier traversal by T. pallidum is reduced by pretreatment of endothelial cells with filipin, an inhibitor that blocks cholesterol-mediated endocytosis. Collectively, these results suggest that T. pallidum can use a cholesterol-dependent, lipid raft-mediated endocytosis mechanism to traverse endothelial barriers. Further, treponemal localization to, and disruption of, intercellular junctions suggests that a paracellular route may also be utilized, a dual traversal strategy that has also been observed to occur for leukocytes and other invasive bacteria.
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Affiliation(s)
- Karen V Lithgow
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Emily Tsao
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Ethan Schovanek
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Alloysius Gomez
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Leigh Anne Swayne
- Division of Medical Sciences, University of Victoria, Victoria, BC, Canada
| | - Caroline E Cameron
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada.,Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, WA, United States
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15
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Baloch Z, Shen Z, Zhang L, Feng Y, Li D, Zhang NN, Deng YQ, Yang C, Sun X, Dai J, Yang Z, Qin CF, Xia X. Recapitulating Zika Virus Infection in Vagina of Tree Shrew (Tupaia belangeri). Front Cell Infect Microbiol 2021; 11:687338. [PMID: 34249779 PMCID: PMC8270636 DOI: 10.3389/fcimb.2021.687338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/10/2021] [Indexed: 01/03/2023] Open
Abstract
Sexual transmission of Zika Virus (ZIKV) elevates the risk of its dissemination in the female reproductive tract and causes a serious threat to the fetus. However, the available animal models are not appropriate to investigate sexual transmission, dynamics of ZIKV infection, replication, and shedding. The use of tree shrew as a small animal model of ZIKV vaginal infection was assessed in this study. A total of 23 sexually mature female tree shrews were infected with ZIKV GZ01 via the intravaginal route. There was no significant difference in change of body weight, and the temperature between ZIKV infected and control animals. Viral RNA loads were detected in blood, saliva, urine, and vaginal douching. ZIKV RNA was readily detected in vaginal lavage of 22 animals (95.65%, 22/23) at 1 dpi, and viral load ranged from 104.46 to 107.35 copies/ml, and the peak of viral load appeared at 1 dpi. The expression of key inflammatory genes, such as IL6, 8, CCL5, TNF-a, and CXCL9, was increased in the spleen of ZIKV infected animals. In the current study, female tree shrews have been successfully infected with ZIKV through the vaginal route for the first time. Interestingly, at first, ZIKV replicates at the local site of infection and then spreads throughout the host body to develop a robust systemic infection and mounted a protective immune response. This small animal model is not only valuable for exploring ZIKV sexual transmission and may also help to explain the cause of debilitating manifestations of the fetus in vivo.
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Affiliation(s)
- Zulqarnain Baloch
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Zhili Shen
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Li Zhang
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Yue Feng
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Daoqun Li
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Na-Na Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yong-Qiang Deng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Chunguang Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, Chinese Academy of Sciences, Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Xiaomei Sun
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jiejie Dai
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zifeng Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, Chinese Academy of Sciences, Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xueshan Xia
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
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16
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Zhang Y, Miao W, Xu Y, Huang Y. Severe fever with thrombocytopenia syndrome in Hefei: Clinical features, risk factors, and ribavirin therapeutic efficacy. J Med Virol 2021; 93:3516-3523. [PMID: 32965706 DOI: 10.1002/jmv.26544] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/14/2020] [Accepted: 09/21/2020] [Indexed: 01/22/2023]
Abstract
OBJECTIVES This study described the clinical features, risk factors, factors affecting the outcome of this disease, and ribavirin therapeutic efficacy for severe fever with thrombocytopenia syndrome (SFTS) patients in Hefei. METHODS Between April 2020 and July 2020, 62 cases admitted to the First Affiliated Hospital of Anhui Medical University were included in this study. Serum samples were collected from all patients, after which diagnosis was made via reverse transcription-polymerase chain reaction and via the use of a colloidal gold immunochromatography assay approach. RESULTS In multivariate analysis, the following factors were determined as risk factors for SFTS: Being a farmer (odds ratio [OR], 3.033), working in areas with weeds and shrubs (OR, 2.807), and being bitten by a tick (OR, 6.64). The rates of confusion, neck stiffness, viral encephalopathy, and the presence of liver damage were higher in the patients who died than that in the surviving ones. Additionally, the median of alanine aminotransferase, aspartate aminotransferase, lactate dehydrogenase, creatine phosphokinase, activated partial thromboplastin time, D-dimer, fibrinogen degradation products, creatinine, and urea was also higher in the patients who died. One of the 15 patients treated with ribavirin in the early stage could not survive (6.7%), whereas 11 of the 35 patients treated with ribavirin in the late stage could not survive (31.4%); this difference was statistically significant. However, there was no significant difference in mortality between the untreated group and the other two groups (i.e., patients who started antiviral treatment <5 days from the onset and those who started antiviral treatment ≥5 days from the onset). Moreover, there was no positive effect determined on clinical or laboratory parameters in SFTS patients treated with ribavirin. Also, it was observed that leukocyte levels and platelet levels took longer to return to normal. CONCLUSIONS In Hefei, clinical features, prognostic factors, and risk factors associated with SFTS are similar to those in other areas. Patients who were given ribavirin did not have better survival rates than patients who were not given ribavirin.
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Affiliation(s)
- Yin Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Wen Miao
- Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Yuanhong Xu
- Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Ying Huang
- Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
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17
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Tunghirun C, Narkthong V, Chaicumpa W, Chimnaronk S. Interference of dengue replication by blocking the access of 3' SL RNA to the viral RNA-dependent RNA polymerase. Antiviral Res 2020; 182:104921. [PMID: 32835694 DOI: 10.1016/j.antiviral.2020.104921] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 07/25/2020] [Accepted: 08/18/2020] [Indexed: 01/01/2023]
Abstract
The four circulating serotypes of dengue virus (DENV) occasionally cause potentially fetal symptoms of severe dengue, which there is currently no specific treatment available. Extensive efforts have been made to inhibit viral replication processes by impeding the activity of an exclusive RNA-dependent RNA polymerase (RdRp) in the viral non-structural protein 5 (NS5). In our earlier work, we identified the characteristic, specific interaction between the C-terminal thumb subdomain of RdRp and an apical loop in the 3' stem-loop (SL) element in the DENV RNA genome, which is fundamental for viral replication. Here, we demonstrated a new approach for interfering viral replication via blocking of 3' SL RNA binding to RdRp by the single-chain variable fragments (scFvs). We isolated and cloned 3 different human scFvs that bound to RdRp from DENV serotype 2 and interfered with 3' SL-binding, utilizing a combination of phage-display panning and Alpha methods. When tagged with a cell penetrating peptide, a selected scFv clone, 2E3, entered cells and partially colocalized with NS5 in the cytoplasm of infected HuH-7 cells. 2E3 significantly inhibited DENV RNA replication with sub-nanomolar EC50 values and significantly reduced the production of infectious particles. The molecular docking models suggested that 2E3 recognized both palm and thumb subdomains of RdRp, and interacted with Lys841, a key residue involved in RNA binding. Our results provide a new potential therapeutic molecule specific for flaviviral infection.
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Affiliation(s)
- Chairat Tunghirun
- The Laboratory of RNA Biology, Institute of Molecular Biosciences, Mahidol University, Salaya Campus, Nakhon Pathom, 73170, Thailand
| | - Veerakorn Narkthong
- Siriraj Center of Research Excellence for Systems Pharmacology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
| | - Wanpen Chaicumpa
- Center of Research Excellence on Therapeutic Proteins and Antibody Engineering, Department of Parasitology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
| | - Sarin Chimnaronk
- The Laboratory of RNA Biology, Institute of Molecular Biosciences, Mahidol University, Salaya Campus, Nakhon Pathom, 73170, Thailand; Siriraj Center of Research Excellence for Systems Pharmacology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand.
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18
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Harapan H, Michie A, Sasmono RT, Imrie A. Dengue: A Minireview. Viruses 2020; 12:v12080829. [PMID: 32751561 PMCID: PMC7472303 DOI: 10.3390/v12080829] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/14/2020] [Accepted: 06/23/2020] [Indexed: 12/24/2022] Open
Abstract
Dengue, caused by infection of any of four dengue virus serotypes (DENV-1 to DENV-4), is a mosquito-borne disease of major public health concern associated with significant morbidity, mortality, and economic cost, particularly in developing countries. Dengue incidence has increased 30-fold in the last 50 years and over 50% of the world’s population, in more than 100 countries, live in areas at risk of DENV infection. We reviews DENV biology, epidemiology, transmission dynamics including circulating serotypes and genotypes, the immune response, the pathogenesis of the disease as well as updated diagnostic methods, treatments, vector control and vaccine developments.
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Affiliation(s)
- Harapan Harapan
- Medical Research Unit, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia
- Department of Microbiology, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia
- Tropical Disease Centre, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia
- School of Biomedical Sciences, University of Western Australia, Nedlands, WA 6009, Australia;
- Correspondence: (H.H.); (A.I.); Tel.: +62-(0)-651-7551843 (H.H.)
| | - Alice Michie
- School of Biomedical Sciences, University of Western Australia, Nedlands, WA 6009, Australia;
| | - R. Tedjo Sasmono
- Eijkman Institute for Molecular Biology, Jakarta 10430, Indonesia;
| | - Allison Imrie
- School of Biomedical Sciences, University of Western Australia, Nedlands, WA 6009, Australia;
- Correspondence: (H.H.); (A.I.); Tel.: +62-(0)-651-7551843 (H.H.)
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19
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Rapid Fabrication of Membrane-Integrated Thermoplastic Elastomer Microfluidic Devices. MICROMACHINES 2020; 11:mi11080731. [PMID: 32731570 PMCID: PMC7463978 DOI: 10.3390/mi11080731] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/19/2020] [Accepted: 07/25/2020] [Indexed: 02/06/2023]
Abstract
Leveraging the advantageous material properties of recently developed soft thermoplastic elastomer materials, this work presents the facile and rapid fabrication of composite membrane-integrated microfluidic devices consisting of FlexdymTM polymer and commercially available porous polycarbonate membranes. The three-layer devices can be fabricated in under 2.5 h, consisting of a 2-min hot embossing cycle, conformal contact between device layers and a low-temperature baking step. The strength of the FlexdymTM-polycarbonate seal was characterized using a specialized microfluidic delamination device and an automated pressure controller configuration, offering a standardized and high-throughput method of microfluidic burst testing. Given a minimum bonding distance of 200 μm, the materials showed bonding that reliably withstood pressures of 500 mbar and above, which is sufficient for most microfluidic cell culture applications. Bonding was also stable when subjected to long term pressurization (10 h) and repeated use (10,000 pressure cycles). Cell culture trials confirmed good cell adhesion and sustained culture of human dermal fibroblasts on a polycarbonate membrane inside the device channels over the course of one week. In comparison to existing porous membrane-based microfluidic platforms of this configuration, most often made of polydimethylsiloxane (PDMS), these devices offer a streamlined fabrication methodology with materials having favourable properties for cell culture applications and the potential for implementation in barrier model organ-on-chips.
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20
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Kakar-Bhanot R, Brahmbhatt K, Chauhan B, Katkam RR, Bashir T, Gawde H, Mayadeo N, Chaudhari UK, Sachdeva G. Rab11a drives adhesion molecules to the surface of endometrial epithelial cells. Hum Reprod 2020; 34:519-529. [PMID: 30597006 DOI: 10.1093/humrep/dey365] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 10/11/2018] [Accepted: 11/24/2018] [Indexed: 12/21/2022] Open
Abstract
STUDY QUESTION Is Rab11a GTPase, a regulator of intracellular trafficking, of significance in endometrial functions? SUMMARY ANSWER Rab11a is an important component of the cascades involved in equipping the endometrial epithelium (EE) with 'adhesiveness' and 'cohesiveness'. WHAT IS KNOWN ALREADY Cell adhesion molecules (CAMs) have been investigated extensively for modulation in their endometrial expression during the peri-implantation phase. However, the mechanisms by which CAMs are transported to the EE surface have not received the same attention. Rab11a facilitates transport of specific proteins to the plasma membrane in endothelial cells, fibroblasts, embryonic ectodermal cells, etc. However, its role in the transport of CAMs in EE remains unexplored. STUDY DESIGN, SIZE, DURATION In-vitro investigations were directed towards deciphering the role of Rab11a in trafficking of CAMs (integrins and E-cadherin) to the cell surface of Ishikawa, an EE cell line. Towards this, Rab11a stable knockdown (Rab-kd) and control clones of Ishikawa were generated. JAr (human trophoblastic cell line) cells were used to form multicellular spheroids. Pre-receptive (n = 6) and receptive (n = 6) phase endometrial tissues from women with proven fertility and receptive phase (n = 6) endometrial tissues from women with unexplained infertility were used. PARTICIPANTS/MATERIALS, SETTING, METHODS Rab-kd and control clones were used for in-vitro assays. Live cells were used for biotinylation, JAr spheroid assays, flow cytometry, trans-epithelial electrical resistance assays and wound-healing assays. Lysosome and Golgi membranes were isolated by ultracentrifugation. Confocal microscopy, immunoblotting, qRT-PCR and immunohistochemistry were employed for assessing the expression of Rab11a, integrins and E-cadherin. MAIN RESULTS AND THE ROLE OF CHANCE shRNA-mediated attenuation of Rab11a expression led to a significant (P < 0.01) decline in the surface localization of αVβ3 integrin. Cell surface protein extracts of Rab-kd clones showed a significant (P < 0.05) reduction in the levels of αV integrin. Further, a significant (P < 0.01) decrease was observed in the percent JAr spheroids attached to Rab-kd clones, compared to control clones. Rab-kd clones also showed a significant (P < 0.001) decline in the total levels of E-cadherin. This was caused neither by reduced transcription nor by increased lysosomal degradation. The role of Rab11a in maintaining the epithelial nature of the cells was evident by a significant increase in the migratory potential, presence of stress-fibres and a decrease in the trans-epithelial resistance in Rab-kd monolayers. Further, the levels of endometrial Rab11a and E-cadherin in the receptive phase were found to be significantly (P < 0.05) lower in women with unexplained infertility compared to that in fertile women. Taken together, these observations hint at a key role of Rab11a in the trafficking of αVβ3 integrin and maintenance of E-cadherin levels at the surface of EE cells. LARGE-SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The in-vitro setting of the study is a limitation. Further immunohistochemical localizations of Rab11a and CAMs were conducted on a limited number of human endometrial samples. WIDER IMPLICATIONS OF THE FINDINGS Rab11a-mediated trafficking of endometrial CAMs in EE cells can be explored further for its potential as a target for fertility regulation or infertility management. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by the Indian Council of Medical Research (ICMR), the Department of Science and Technology (DST), the Council of Scientific and Industrial Research (CSIR), Government of India. No competing interests are declared.
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Affiliation(s)
- Ruchi Kakar-Bhanot
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - Krupanshi Brahmbhatt
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - Bhagyashree Chauhan
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - R R Katkam
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - T Bashir
- Molecular Immunology and Microbiology Laboratory, ICMR-NIRRH, Mumbai, India
| | - H Gawde
- Genetic Research Centre, ICMR-NIRRH, Mumbai, India
| | - N Mayadeo
- Department of Gynecology and Obstetrics, Seth G.S. Medical College and King Edward Memorial Hospital, Parel, Mumbai, India
| | - U K Chaudhari
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - Geetanjali Sachdeva
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
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Balkrishna A, Solleti SK, Verma S, Varshney A. Validation of a Novel Zebrafish Model of Dengue Virus (DENV-3) Pathology Using the Pentaherbal Medicine Denguenil Vati. Biomolecules 2020; 10:biom10070971. [PMID: 32605167 PMCID: PMC7408079 DOI: 10.3390/biom10070971] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 02/08/2023] Open
Abstract
Dengue is a devastating viral fever of humans, caused by dengue virus. Using a novel zebrafish model of dengue pathology, we validated the potential anti-dengue therapeutic properties of pentaherbal medicine, Denguenil Vati. At two different time points (at 7 and 14 days post infection with dengue virus), we tested three translational doses (5.8 μg/kg, 28 μg/kg, and 140 μg/kg). Dose- and time-dependent inhibition of the viral copy numbers was identified upon Denguenil Vati treatment. Hepatocyte necrosis, liver inflammation, and red blood cell (RBC) infiltration into the liver were significantly inhibited upon Denguenil treatment. Treatment with Denguenil Vati significantly recovered the virus-induced decreases in total platelet numbers and total RBC count, and concomitantly increasing hematocrit percentage, in a dose- and time-dependent manner. Conversely, virus-induced white blood cell (WBC) counts were significantly normalized. Virus-induced hemorrhage was completely abrogated by Denguenil after 14 days, at all the doses tested. Gene expression analysis identified a significant decrease in disease-induced endothelial apoptotic marker Angiopoetin2 (Ang-2) and pro-inflammatory chemokine marker CCL3 upon Denguenil treatment. Presence of gallic acid, ellagic acid, palmetin, and berberine molecules in the Denguenil formulation was detected by HPLC. Taken together, our results exhibit the potential therapeutic properties of Denguenil Vati in ameliorating pathological features of dengue.
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Affiliation(s)
- Acharya Balkrishna
- Drug Discovery and Development Division, Patanjali Research Institute, NH-58, Haridwar 249 405, Uttarakhand, India; (A.B.); (S.K.S.); (S.V.)
- Department of Allied and Applied Sciences, University of Patanjali, Patanjali Yog Peeth, Roorkee-Haridwar Road, Haridwar 249 405, Uttarakhand, India
| | - Siva Kumar Solleti
- Drug Discovery and Development Division, Patanjali Research Institute, NH-58, Haridwar 249 405, Uttarakhand, India; (A.B.); (S.K.S.); (S.V.)
| | - Sudeep Verma
- Drug Discovery and Development Division, Patanjali Research Institute, NH-58, Haridwar 249 405, Uttarakhand, India; (A.B.); (S.K.S.); (S.V.)
| | - Anurag Varshney
- Drug Discovery and Development Division, Patanjali Research Institute, NH-58, Haridwar 249 405, Uttarakhand, India; (A.B.); (S.K.S.); (S.V.)
- Department of Allied and Applied Sciences, University of Patanjali, Patanjali Yog Peeth, Roorkee-Haridwar Road, Haridwar 249 405, Uttarakhand, India
- Correspondence: ; Tel.: +91-13-3424-4107 (ext. 7458)
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22
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Si H, Wang J, Meininger CJ, Peng X, Zawieja DC, Zhang SL. Ca 2+ release-activated Ca 2+ channels are responsible for histamine-induced Ca 2+ entry, permeability increase, and interleukin synthesis in lymphatic endothelial cells. Am J Physiol Heart Circ Physiol 2020; 318:H1283-H1295. [PMID: 32275470 DOI: 10.1152/ajpheart.00544.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The lymphatic functions in maintaining lymph transport, and immune surveillance can be impaired by infections and inflammation, thereby causing debilitating disorders, such as lymphedema and inflammatory bowel disease. Histamine is a key inflammatory mediator known to trigger vasodilation and vessel hyperpermeability upon binding to its receptors and evoking intracellular Ca2+ ([Ca2+]i) dynamics for downstream signal transductions. However, the exact molecular mechanisms beneath the [Ca2+]i dynamics and the downstream cellular effects have not been elucidated in the lymphatic system. Here, we show that Ca2+ release-activated Ca2+ (CRAC) channels, formed by Orai1 and stromal interaction molecule 1 (STIM1) proteins, are required for the histamine-elicited Ca2+ signaling in human dermal lymphatic endothelial cells (HDLECs). Blockers or antagonists against CRAC channels, phospholipase C, and H1R receptors can all significantly diminish the histamine-evoked [Ca2+]i dynamics in lymphatic endothelial cells (LECs), while short interfering RNA-mediated knockdown of endogenous Orai1 or STIM1 also abolished the Ca2+ entry upon histamine stimulation in LECs. Furthermore, we find that histamine compromises the lymphatic endothelial barrier function by increasing the intercellular permeability and disrupting vascular endothelial-cadherin integrity, which is remarkably attenuated by CRAC channel blockers. Additionally, the upregulated expression of inflammatory cytokines, IL-6 and IL-8, after histamine stimulation was abolished by silencing Orai1 or STIM1 with RNAi in LECs. Taken together, our data demonstrated the essential role of CRAC channels in mediating the [Ca2+]i signaling and downstream endothelial barrier and inflammatory functions induced by histamine in the LECs, suggesting a promising potential to relieve histamine-triggered vascular leakage and inflammatory disorders in the lymphatics by targeting CRAC channel functions.
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Affiliation(s)
- Hongjiang Si
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas
| | - Jian Wang
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas
| | - Cynthia J Meininger
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas
| | - Xu Peng
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas
| | - David C Zawieja
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas
| | - Shenyuan L Zhang
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas
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Kang TY, Bocci F, Jolly MK, Levine H, Onuchic JN, Levchenko A. Pericytes enable effective angiogenesis in the presence of proinflammatory signals. Proc Natl Acad Sci U S A 2019; 116:23551-23561. [PMID: 31685607 PMCID: PMC6876202 DOI: 10.1073/pnas.1913373116] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Angiogenesis frequently occurs in the context of acute or persistent inflammation. The complex interplay of proinflammatory and proangiogenic cues is only partially understood. Using an experimental model, permitting exposure of developing blood vessel sprouts to multiple combinations of diverse biochemical stimuli and juxtacrine cell interactions, we present evidence that a proinflammatory cytokine, tumor necrosis factor (TNF), can have both proangiogenic and antiangiogenic effects, depending on the dose and the presence of pericytes. In particular, we find that pericytes can rescue and enhance angiogenesis in the presence of otherwise-inhibitory high TNF doses. This sharp switch from proangiogenic to antiangiogenic effect of TNF observed with an escalating dose of this cytokine, as well as the effect of pericytes, are explained by a mathematical model trained on the biochemical data. Furthermore, this model was predictive of the effects of diverse combinations of proinflammatory and antiinflammatory cues, and variable pericyte coverage. The mechanism supports the effect of TNF and pericytes as modulating signaling networks impinging on Notch signaling and specification of the Tip and Stalk phenotypes. This integrative analysis elucidates the plasticity of the angiogenic morphogenesis in the presence of diverse and potentially conflicting cues, with immediate implications for many physiological and pathological settings.
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Affiliation(s)
- Tae-Yun Kang
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520
- Yale Systems Biology Institute, Yale University, New Haven, CT 06520
| | - Federico Bocci
- Center for Theoretical Biological Physics, Rice University, Houston, TX 77005
- Department of Chemistry, Rice University, Houston, TX 77005
| | - Mohit Kumar Jolly
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Herbert Levine
- Department of Physics, Northeastern University, Boston, MA 02115;
| | - José Nelson Onuchic
- Center for Theoretical Biological Physics, Rice University, Houston, TX 77005;
- Department of Chemistry, Rice University, Houston, TX 77005
- Department of Physics and Astronomy, Rice University, Houston, TX 77005
- Department of Biosciences, Rice University, Houston, TX 77005
| | - Andre Levchenko
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520;
- Yale Systems Biology Institute, Yale University, New Haven, CT 06520
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25
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Vitoria WO, Thomé LS, Kanashiro-Galo L, Carvalho LVD, Penny R, Santos WLC, Vasconcelos PFDC, Sotto MN, Duarte MIS, Quaresma JAS, Pagliari C. Upregulation of intercellular adhesion molecule-1 and vascular cell adhesion molecule-1 in renal tissue in severe dengue in humans: Effects on endothelial activation/dysfunction. Rev Soc Bras Med Trop 2019; 52:e20180353. [PMID: 31778418 DOI: 10.1590/0037-8682-0353-2018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 09/20/2019] [Indexed: 01/25/2023] Open
Abstract
INTRODUCTION Dengue is an important mosquito-borne disease in tropical and subtropical regions. Adhesion molecules have not been systematically characterized in the renal tissue of patients with severe dengue (SD). The objective of this study was to detect viral antigens in samples from patients that evolved with SD, correlating with the expression of ICAM-1, VCAM-1, VE-cadherin, and E-selectin to contribute to a better understanding of the pathophysiology of SD. METHODS Kidney specimens from patients with SD were selected according to clinical and laboratorial data and submitted to histological and immunohistochemistry analysis. A semiquantitative evaluation was performed considering positive immunostaining in 20 glomeruli. RESULTS Viral antigens were mainly detected in distal tubules. The intense immunostaining of VCAM-1 and ICAM-1 was observed. The expression of E-selectin was discrete, and VE-cadherin expression varied from mild to moderate. VCAM-1 was slightly intense in the glomerular capsule; the expression of ICAM-1 was diffuse. E-selectin was diffuse, and VE-cadherin varied from mild to moderate. The most frequent histological findings were glomerular congestion, mild glomerulitis, acute renal injury, and glomerular atrophy. CONCLUSIONS The results appear to demonstrate an imbalance between vascular endothelial permeability regulating events in renal lesions in SD. The increase in the expression of ICAM-1 and VCAM-1 is an in-situ indicator of higher permeability with a consequent influx of cells favoring the inflammation of the endothelium. These molecules are important in the pathophysiology of the disease and provide the possibility of developing new markers for the evaluation, clinical follow-up, and therapeutic response of patients with SD.
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Affiliation(s)
- Webster Oliveira Vitoria
- Universidade de São Paulo, Faculdade de Medicina, Laboratório da Disciplina de Patologia de Moléstias Transmissíveis, São Paulo, SP, Brasil.,Instituto de Assistência Médica ao Servidor Público Estadual, Programa de Pós-Graduação em Ciências da Saúde, São Paulo, SP, Brasil
| | - Letícia Silva Thomé
- Universidade de São Paulo, Faculdade de Medicina, Laboratório da Disciplina de Patologia de Moléstias Transmissíveis, São Paulo, SP, Brasil.,Instituto de Assistência Médica ao Servidor Público Estadual, Programa de Pós-Graduação em Ciências da Saúde, São Paulo, SP, Brasil
| | - Luciane Kanashiro-Galo
- Universidade de São Paulo, Faculdade de Medicina, Laboratório da Disciplina de Patologia de Moléstias Transmissíveis, São Paulo, SP, Brasil
| | | | | | | | | | - Mirian Nacagami Sotto
- Universidade de São Paulo, Faculdade de Medicina, Laboratório da Disciplina de Patologia de Moléstias Transmissíveis, São Paulo, SP, Brasil
| | - Maria Irma Seixas Duarte
- Universidade de São Paulo, Faculdade de Medicina, Laboratório da Disciplina de Patologia de Moléstias Transmissíveis, São Paulo, SP, Brasil
| | | | - Carla Pagliari
- Universidade de São Paulo, Faculdade de Medicina, Laboratório da Disciplina de Patologia de Moléstias Transmissíveis, São Paulo, SP, Brasil.,Instituto de Assistência Médica ao Servidor Público Estadual, Programa de Pós-Graduação em Ciências da Saúde, São Paulo, SP, Brasil
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Abstract
Arthropod-borne viral diseases caused by dengue virus (DENV) are major re-emerging public health problem worldwide. In spite of intense research, DENV pathogenesis is not fully understood and remains enigmatic; however, current evidence suggests that dengue progression is associated with an inflammatory response, mainly in patients suffering from a second DENV infection. Monocytes are one of the main target cells of DENV infection and play an important role in pathogenesis since they are known to produce several inflammatory cytokines that can lead to endothelial dysfunction and therefore vascular leak. In addition, monocytes play an important role in antibody dependent enhancement, infection with consequences in viral load and immune response. Despite the physiological functions of monocytes in immune response, their life span in the bloodstream is very short, and activation of monocytes by DENV infection can trigger different types of cell death. For example, DENV can induce apoptosis in monocytes related with the production of Tumor necrosis factor alpha (TNF-α). Additionally, recent studies have shown that DENV-infected monocytes also exhibit a cell death process mediated by caspase-1 activation together with IL-1 production, referred to as pyroptosis. Taken together, the aforementioned studies strongly depict that multiple cell death pathways may be occurring in monocytes upon DENV-2 infection. This review provides insight into mechanisms of DENV-induced death of both monocytes and other cell types for a better understanding of this process. Further knowledge in cell death induced by DENV will help in the developing novel strategies to prevent disease progression.
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Jeong J, Lee J, Lim J, Cho S, An S, Lee M, Yoon N, Seo M, Lim S, Park S. Soluble RAGE attenuates AngII-induced endothelial hyperpermeability by disrupting HMGB1-mediated crosstalk between AT1R and RAGE. Exp Mol Med 2019; 51:1-15. [PMID: 31562296 PMCID: PMC6802637 DOI: 10.1038/s12276-019-0312-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 07/03/2019] [Accepted: 07/08/2019] [Indexed: 12/15/2022] Open
Abstract
Increased endothelial permeability, one of the earliest signs of endothelial dysfunction, is associated with the development of cardiovascular diseases such as hypertension and atherosclerosis. Recent studies suggest that the receptor for advanced glycation end products (RAGE) regulates endothelial permeability in inflammation. In the present study, we investigated the regulatory mechanism of RAGE in endothelial hyperpermeability induced by angiotensin II (Ang II), a well-known inflammatory mediator, and the potential therapeutic effect of soluble RAGE (sRAGE), a decoy receptor for RAGE ligands. For in vitro studies, Ang II-treated human umbilical vein endothelial cells (HUVECs) were treated with siRNA specific to either RAGE or sRAGE to disrupt RAGE-mediated signaling. Endothelial permeability was estimated using FITC-labeled dextran 40 and a resistance meter. To evaluate intercellular junction disruption, VE-cadherin expression was examined by western blotting and immunocytochemistry. Ang II increased the expression of the Ang II type 1 receptor (AT1R) and RAGE, and this increase was inhibited by sRAGE. sRAGE prevented Ang II-induced VE-cadherin disruption in HUVECs. For in vivo studies, Ang II-infused, atherosclerosis-prone apolipoprotein E knockout mice were utilized. Endothelial permeability was assessed by Evans blue staining of the aorta. Ang II increased endothelial barrier permeability, and this effect was significantly attenuated by sRAGE. Our data demonstrate that blockade of RAGE signaling using sRAGE attenuates Ang II-induced endothelial barrier permeability in vitro and in vivo and indicate the therapeutic potential of sRAGE in controlling vascular permeability under pathological conditions. A decoy version of a protein involved in regulating the leakiness of blood vessels can help ameliorate vascular problems that lead to high blood pressure and plaque deposition in the arteries. A team from South Korea led by Soyeon Lim from Catholic Kwandong University in Gangneung and Sungha Park from Yonsei University College of Medicine in Seoul induced hyper-permeability in both human vein cells and atherosclerosis-prone mice. They then blocked signaling through a membrane-bound protein called RAGE, a receptor that helps boost vessel permeability by using a soluble version of this same protein. In both the human cells and mouse models, this free-floating RAGE bound and blocked the receptor’s normal activator, leading to suppressed permeability and improved function of the blood vessel lining. This decoy strategy holds therapeutic promise for people prone to cardiovascular disease.
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Affiliation(s)
- Jisu Jeong
- Graduate Program in Science for Aging, Yonsei University, Seoul, 120-752, Korea.,Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, 120-752, Korea
| | - Jiye Lee
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, 120-752, Korea
| | - Juyeon Lim
- Graduate Program in Science for Aging, Yonsei University, Seoul, 120-752, Korea.,Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, 120-752, Korea
| | - Soyoung Cho
- Graduate Program in Science for Aging, Yonsei University, Seoul, 120-752, Korea.,Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, 120-752, Korea
| | - Soyoung An
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, 120-752, Korea
| | - Myungeun Lee
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, 120-752, Korea
| | - Nara Yoon
- Department of Pathology, The Catholic University of Korea, Incheon St. Mary's Hospital, Incheon, Korea
| | - Miran Seo
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, 120-752, Korea
| | - Soyeon Lim
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung, Gangwon-do, 25601, Korea.
| | - Sungha Park
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, 120-752, Korea. .,Cardiovascular Research Institute, Division of Cardiology, Yonsei University College of Medicine, Seoul, 120-752, Korea.
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Chesnut M, Muñoz LS, Harris G, Freeman D, Gama L, Pardo CA, Pamies D. In vitro and in silico Models to Study Mosquito-Borne Flavivirus Neuropathogenesis, Prevention, and Treatment. Front Cell Infect Microbiol 2019; 9:223. [PMID: 31338335 PMCID: PMC6629778 DOI: 10.3389/fcimb.2019.00223] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/11/2019] [Indexed: 01/07/2023] Open
Abstract
Mosquito-borne flaviviruses can cause disease in the nervous system, resulting in a significant burden of morbidity and mortality. Disease models are necessary to understand neuropathogenesis and identify potential therapeutics and vaccines. Non-human primates have been used extensively but present major challenges. Advances have also been made toward the development of humanized mouse models, but these models still do not fully represent human pathophysiology. Recent developments in stem cell technology and cell culture techniques have allowed the development of more physiologically relevant human cell-based models. In silico modeling has also allowed researchers to identify and predict transmission patterns and discover potential vaccine and therapeutic candidates. This review summarizes the research on in vitro and in silico models used to study three mosquito-borne flaviviruses that cause neurological disease in humans: West Nile, Dengue, and Zika. We also propose a roadmap for 21st century research on mosquito-borne flavivirus neuropathogenesis, prevention, and treatment.
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Affiliation(s)
- Megan Chesnut
- Center for Alternatives to Animal Testing, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Laura S. Muñoz
- Division of Neuroimmunology, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States,Neuroviruses Emerging in the Americas Study, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Georgina Harris
- Center for Alternatives to Animal Testing, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Dana Freeman
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Lucio Gama
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, United States,Vaccine Research Center, National Institute of Allergy and Infectious Diseases, Bethesda, MD, United States
| | - Carlos A. Pardo
- Division of Neuroimmunology, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States,Neuroviruses Emerging in the Americas Study, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - David Pamies
- Center for Alternatives to Animal Testing, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States,Department of Physiology, University of Lausanne, Lausanne, Switzerland,*Correspondence: David Pamies
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Zhang L, Shen ZL, Feng Y, Li DQ, Zhang NN, Deng YQ, Qi XP, Sun XM, Dai JJ, Yang CG, Yang ZF, Qin CF, Xia XS. Infectivity of Zika virus on primary cells support tree shrew as animal model. Emerg Microbes Infect 2019; 8:232-241. [PMID: 30866776 PMCID: PMC6455147 DOI: 10.1080/22221751.2018.1559707] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Zika virus (ZIKV) is a mosquito-borne flavivirus that caused the public health emergency. Recently, we have proved a novel small animal tree shrew was susceptive to ZIKV infection and presented the most common rash symptoms as ZIKV patients. Here we further cultured the primary cells from different tissues of this animal to determine the tissue tropism of ZIKV infection in vitro. The results showed that the primary cells from tree shrew kidney, lung, liver, skin and aorta were permissive to ZIKV infection and could support viral replication by the detection of viral specific RNA intra- and extra-cells. In comparing, the skin fibroblast and vascular endothelial cells were highly permissive to ZIKV infection with high releasing of active virus particles in supernatants proved by its infectivity in established neonatal mouse model. The expressions of ZIKV envelop and nonstructural protein-1, and the effects and strong immune response of primary tree shrew cells were also detected followed by ZIKV infection. These findings provide powerful in vitro cell-level evidence to support tree shrew as animal model of ZIKV infection and may help to explain the rash manifestations in vivo.
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Affiliation(s)
- Li Zhang
- a Faculty of Environmental Science and Engineering , Kunming University of Science and Technology , Kunming , People's Republic of China.,b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
| | - Zhi-Li Shen
- b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
| | - Yue Feng
- b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
| | - Dao-Qun Li
- b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
| | - Na-Na Zhang
- c State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology , Beijing , People's Republic of China
| | - Yong-Qiang Deng
- c State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology , Beijing , People's Republic of China
| | - Xiao-Peng Qi
- d Key Laboratory of Animal Models and Human Disease Mechanisms , Kunming Institute of Zoology, Chinese Academy of Sciences , Kunming , People's Republic of China
| | - Xiao-Mei Sun
- e Center of Tree Shrew Germplasm Resources , Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College , Kunming , People's Republic of China
| | - Jie-Jie Dai
- e Center of Tree Shrew Germplasm Resources , Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College , Kunming , People's Republic of China
| | - Chun-Guang Yang
- f State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease , First Affiliated Hospital of Guagnzhou Medical University , Guangzhou , People's Republic of China
| | - Zi-Feng Yang
- f State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease , First Affiliated Hospital of Guagnzhou Medical University , Guangzhou , People's Republic of China
| | - Cheng-Feng Qin
- c State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology , Beijing , People's Republic of China
| | - Xue-Shan Xia
- b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
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Anfasa F, Goeijenbier M, Widagdo W, Siegers JY, Mumtaz N, Okba N, van Riel D, Rockx B, Koopmans MPG, Meijers JCM, Martina BEE. Zika Virus Infection Induces Elevation of Tissue Factor Production and Apoptosis on Human Umbilical Vein Endothelial Cells. Front Microbiol 2019; 10:817. [PMID: 31068911 PMCID: PMC6491739 DOI: 10.3389/fmicb.2019.00817] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 04/01/2019] [Indexed: 12/22/2022] Open
Abstract
Zika virus (ZIKV) infection is typically characterized by a mild disease presenting with fever, maculopapular rash, headache, fatigue, myalgia, and arthralgia. A recent animal study found that ZIKV-infected pregnant Ifnar -/-mice developed vascular damage in the placenta and reduced amount of fetal capillaries. Moreover, ZIKV infection causes segmental thrombosis in the umbilical cord of pregnant rhesus macaques. Furthermore, several case reports suggest that ZIKV infection cause coagulation disorders. These results suggest that ZIKV could cause an alteration in the host hemostatic response, however, the mechanism has not been investigated thus far. This paper aims to determine whether ZIKV infection on HUVECs induces apoptosis and elevation of tissue factor (TF) that leads to activation of secondary hemostasis. We infected HUVECs with two ZIKV strains and performed virus titration, immunostaining, and flow cytometry to confirm and quantify infection. We measured TF concentrations with flow cytometry and performed thrombin generation test (TGT) as a functional assay to assess secondary hemostasis. Furthermore, we determined the amount of cell death using flow cytometry. We also performed enzyme-linked immunosorbent assay (ELISA) to determine interleukin (IL)-6 and IL-8 production and conducted blocking experiments to associate these cytokines with TF expression. Both ZIKV strains infected and replicated to high titers in HUVECs. We found that infection induced elevation of TF expressions. We also showed that increased TF expression led to shortened TGT time. Moreover, the data revealed that infection induced apoptosis. In addition, there was a significant increase of IL-6 and IL-8 production in infected cells. Here we provide in vitro evidence that infection of HUVECs with ZIKV induces apoptosis and elevation of TF expression that leads to activation of secondary hemostasis.
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Affiliation(s)
- Fatih Anfasa
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands.,Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Marco Goeijenbier
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands.,Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Widagdo Widagdo
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Jurre Y Siegers
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Noreen Mumtaz
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Nisreen Okba
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Debby van Riel
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Barry Rockx
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Marion P G Koopmans
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Joost C M Meijers
- Department of Plasma Proteins, Sanquin Research, Amsterdam, Netherlands.,Department of Experimental Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Byron E E Martina
- Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands.,Artemis One Health Research Institute, Delft, Netherlands
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31
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Singh S, Anupriya MG, Modak A, Sreekumar E. Dengue virus or NS1 protein induces trans-endothelial cell permeability associated with VE-Cadherin and RhoA phosphorylation in HMEC-1 cells preventable by Angiopoietin-1. J Gen Virol 2018; 99:1658-1670. [PMID: 30355397 DOI: 10.1099/jgv.0.001163] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A transient increase in trans-endothelial cell permeability in dengue patients leads to vascular leakage and shock syndrome. Here, we analysed the molecular mechanisms that cause permeability changes in human dermal microvascular endothelial cells (HMEC-1) using a direct dengue virus (DENV) infection model or treatment with NS1, a secreted DENV non-structural protein. In HMEC-1 cells, both treatments increase permeability with a concordant increase in the secretion of angiopoietin-2 (Ang-2). There is phosphorylation and loss of the junction protein VE-Cadherin from the inter-endothelial cell junctions and phosphorylation of RhoA. Direct virus infection results in activation of Src by phosphorylation, whereas NS1 treatment alone does not lead to Src activation. Furthermore, treatment with recombinant Ang-1, a physiological antagonist of Ang-2, prevents Ang-2 release, VE-Cadherin phosphorylation and internalization, and phosphorylation of RhoA and Src, resulting in restoration of barrier function. The permeability increase could also be prevented by blocking the Ang1/2 signalling receptor, Tie-2, or using a Rho/ROCK-specific inhibitor. Dasatinib, a Src-family kinase (SFK) inhibitor that inhibits Src phosphorylation, prevents enhanced permeability induced by direct DENV infection whereas in NS1 protein-treated cells its effect is less significant. The results provide important insights on the mechanisms of increased trans-endothelial permeability in DENV infection, and suggest the therapeutic potential of using recombinant Ang-1 or targeting these key molecules to prevent vascular leakage in dengue.
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Affiliation(s)
- Sneha Singh
- Molecular Virology laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram-695014, Kerala, India
| | - M G Anupriya
- Molecular Virology laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram-695014, Kerala, India
| | - Ayan Modak
- Molecular Virology laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram-695014, Kerala, India
| | - Easwaran Sreekumar
- Molecular Virology laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram-695014, Kerala, India
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32
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Castillo JA, Naranjo JS, Rojas M, Castaño D, Velilla PA. Role of Monocytes in the Pathogenesis of Dengue. Arch Immunol Ther Exp (Warsz) 2018; 67:27-40. [DOI: 10.1007/s00005-018-0525-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/03/2018] [Indexed: 11/29/2022]
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33
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Francia V, Aliyandi A, Salvati A. Effect of the development of a cell barrier on nanoparticle uptake in endothelial cells. NANOSCALE 2018; 10:16645-16656. [PMID: 30155550 DOI: 10.1039/c8nr03171a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In order to improve the current success of nanomedicine, a better understanding of how nano-sized materials interact with and are processed by cells is required. Typical in vitro nanoparticle-cell interaction studies often make use of cells cultured at different cell densities. However, in vivo, for their successful delivery to the target tissue, nanomedicines need to overcome several barriers, such as endothelial and epithelial cell barriers. Unlike sub-confluent or confluent cell cultures, cell barriers are tight cell monolayers, expressing a series of specialized tight junction proteins between adjacent cells to limit paracellular transport and ensure close cell-to-cell interactions. A clear understanding on how the development of cells into a cell barrier may affect the uptake of nano-sized drug carriers is still missing. To this aim, here, human primary umbilical vein endothelial cells (HUVEC) are used as a model cell line to form endothelial cell barriers. Then, nanoparticle uptake is assessed in the developed endothelial barriers and compared to the uptake in sub-confluent or confluent HUVEC cultures. The results clearly show that the organization of cells into a cell barrier leads to a differential gene expression of endocytic markers, and - interestingly - this is accompanied by reduced nanoparticle uptake levels. Transport inhibitors are used to characterise the mechanisms involved in the uptake. However, we show that some of them can strongly compromise barrier integrity, thus impairing the interpretation of the outcomes, and overall, only a partial inhibition of nanoparticle uptake could be obtained.
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Affiliation(s)
- Valentina Francia
- Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
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34
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Li XK, Zhang SF, Xu W, Xing B, Lu QB, Zhang PH, Li H, Zhang L, Zhang WC, Chen WW, Cao WC, Liu W. Vascular endothelial injury in severe fever with thrombocytopenia syndrome caused by the novel bunyavirus. Virology 2018; 520:11-20. [PMID: 29754008 DOI: 10.1016/j.virol.2018.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 04/14/2018] [Accepted: 05/01/2018] [Indexed: 12/13/2022]
Abstract
Severe fever with thrombocytopenia syndrome virus (SFTSV) infection typically causes acute fever, thrombocytopenia and leucopenia, presenting with a high case fatality rate. The pathogenesis of SFTSV infection, however, is not well described. It was hypothesized that endothelial dysfunction might play part in the disease process. In current study, we retrospectively analyzed the clinical manifestations among a large group of confirmed SFTS cases and found evidence of plasma leakage and vascular endothelial injury. Then we established a SFTSV infection cell model and determined the infectivity and stimulation of SFTSV on vascular endothelial cells in vitro. The hyperpermeability of endothelial cells directly induced by SFTSV was confirmed by electrical resistance and dextran diffusion assay. The virus induced alterations of cell junctions and cytoskeleton was also revealed. It's suggested that vascular endothelial cell injury and barrier function damage were induced after SFTSV infection, which is a vital but neglected pathogenesis of SFTS.
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Affiliation(s)
- Xiao-Kun Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongda Street, Fengtai District, 100071, Beijing, PR China
| | - Shao-Fei Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongda Street, Fengtai District, 100071, Beijing, PR China
| | - Wen Xu
- Treatment and Research Centre for Infectious Diseases, The 302 Hospital, People's Liberation Army, No. 100, West 4th Ring Road, Fengtai District, Beijing, PR China
| | - Bo Xing
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongda Street, Fengtai District, 100071, Beijing, PR China
| | - Qing-Bin Lu
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, No. 38, Xue yuan Road, Hai-dian District, Beijing, PR China
| | - Pan-He Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongda Street, Fengtai District, 100071, Beijing, PR China
| | - Hao Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongda Street, Fengtai District, 100071, Beijing, PR China
| | - Li Zhang
- Xinxiang Medical University, Xinxiang City, PR China
| | | | - Wei-Wei Chen
- Treatment and Research Centre for Infectious Diseases, The 302 Hospital, People's Liberation Army, No. 100, West 4th Ring Road, Fengtai District, Beijing, PR China
| | - Wu-Chun Cao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongda Street, Fengtai District, 100071, Beijing, PR China
| | - Wei Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongda Street, Fengtai District, 100071, Beijing, PR China.
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35
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Anupriya MG, Singh S, Hulyalkar NV, Sreekumar E. Sphingolipid signaling modulates trans-endothelial cell permeability in dengue virus infected HMEC-1 cells. Prostaglandins Other Lipid Mediat 2018; 136:44-54. [PMID: 29733947 DOI: 10.1016/j.prostaglandins.2018.05.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 03/01/2018] [Accepted: 05/03/2018] [Indexed: 12/07/2022]
Abstract
Dengue has emerged as a major mosquito-borne disease in the tropics and subtropics. In severe dengue, enhanced microvascular endothelial permeability leads to plasma leakage. Direct dengue virus (DENV) infection in human microvascular endothelial cells (HMEC-1) can enhance trans-endothelial leakage. Using a microarray-based analysis, we identified modulation of key endothelial cell signaling pathways in DENV-infected HMEC-1 cells. One among them was the sphingolipid pathway that regulates vascular barrier function. Sphingosine-1-phosphate receptor 2 (S1PR2) and S1PR5 showed significant up-regulation in the microarray data. In DENV-infected cells, the kinetics of S1PR2 transcript expression and enhanced in vitro trans-endothelial permeability showed a correlation. We also observed an internalization and cytoplasmic translocation of VE-Cadherin, a component of adherens junctions (AJ), upon infection indicating AJ disassembly. Further, inhibition of S1PR2 signaling by a specific pharmacological inhibitor prevented translocation of VE-Cadherin, thus helping AJ maintenance, and abrogated DENV-induced trans-endothelial leakage. Our results show that sphingolipid signaling, especially that involving S1PR2, plays a critical role in vascular leakage in dengue.
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Affiliation(s)
- M G Anupriya
- Molecular Virology laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud P.O., Thiruvananthapuram, 695014, Kerala, India; Research Scholar, University of Kerala, India
| | - Sneha Singh
- Molecular Virology laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud P.O., Thiruvananthapuram, 695014, Kerala, India; Research Scholar, University of Kerala, India
| | - Neha Vijay Hulyalkar
- Molecular Virology laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud P.O., Thiruvananthapuram, 695014, Kerala, India
| | - Easwaran Sreekumar
- Molecular Virology laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud P.O., Thiruvananthapuram, 695014, Kerala, India.
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36
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Xia S, Li J, Zu M, Li J, Liu J, Bai X, Chang Y, Chen K, Gu W, Zeng L, Zhao L, Xing G, Xing G. Small size fullerenol nanoparticles inhibit thrombosis and blood coagulation through inhibiting activities of thrombin and FXa. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:929-939. [DOI: 10.1016/j.nano.2017.12.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/16/2017] [Accepted: 12/16/2017] [Indexed: 12/13/2022]
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37
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Soe HJ, Khan AM, Manikam R, Samudi Raju C, Vanhoutte P, Sekaran SD. High dengue virus load differentially modulates human microvascular endothelial barrier function during early infection. J Gen Virol 2017; 98:2993-3007. [PMID: 29182510 DOI: 10.1099/jgv.0.000981] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Plasma leakage is the main pathophysiological feature in severe dengue, resulting from altered vascular barrier function associated with an inappropriate immune response triggered upon infection. The present study investigated functional changes using an electric cell-substrate impedance sensing system in four (brain, dermal, pulmonary and retinal) human microvascular endothelial cell (MEC) lines infected with purified dengue virus, followed by assessment of cytokine profiles and the expression of inter-endothelial junctional proteins. Modelling of changes in electrical impedance suggests that vascular leakage in dengue-infected MECs is mostly due to the modulation of cell-to-cell interactions, while this loss of vascular barrier function observed in the infected MECs varied between cell lines and DENV serotypes. High levels of inflammatory cytokines (IL-6 and TNF-α), chemokines (CXCL1, CXCL5, CXCL11, CX3CL1, CCL2 and CCL20) and adhesion molecules (VCAM-1) were differentially produced in the four infected MECs. Further, the tight junctional protein, ZO-1, was down-regulated in both the DENV-1-infected brain and pulmonary MECs, while claudin-1, PECAM-1 and VE-cadherin were differentially expressed in these two MECs after infection. Non-purified virus stock was also studied to investigate the impact of virus stock purity on dengue-specific immune responses, and the results suggest that virus stock propagated through cell culture may include factors that mask or alter the DENV-specific immune responses of the MECs. The findings of the present study show that high DENV load differentially modulates human microvascular endothelial barrier function and disrupts the function of inter-endothelial junctional proteins during early infection with organ-specific cytokine production.
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Affiliation(s)
- Hui Jen Soe
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Asif M Khan
- Centre for Bioinformatics, School of Data Sciences, Perdana University, Serdang, Selangor, Malaysia
| | - Rishya Manikam
- Trauma and Emergency (Academic), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Chandramathi Samudi Raju
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Paul Vanhoutte
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, Hong Kong SAR
| | - Shamala Devi Sekaran
- Department of Medical Microbiology, Faculty of Medicine, MAHSA University, Selangor, Malaysia.,Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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38
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Micro-anatomical changes in major blood vessel caused by dengue virus (serotype 2) infection. Acta Trop 2017; 171:213-219. [PMID: 28427958 DOI: 10.1016/j.actatropica.2017.04.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 04/05/2017] [Accepted: 04/14/2017] [Indexed: 01/11/2023]
Abstract
Dengue virus (DENV) has emerged as a major economic concern in developing countries, with 2.5 billion people believed to be at risk. Vascular endothelial cells (ECs) lining the circulatory system from heart to end vessels perform crucial functions in the human body, by aiding gas exchange in lungs, gaseous, nutritional and its waste exchange in all tissues, including the blood brain barrier, filtration of fluid in the glomeruli, neutrophil recruitment, hormone trafficking, as well as maintenance of blood vessel tone and hemostasis. These functions can be deregulated during DENV infection. In this study, BALB/c mice infected with DENV serotype 2 were analyzed histologically for changes in major blood vessels in response to DENV infection. In the uninfected mouse model, blood vessels showed normal architecture with intact endothelial monolayer, tunica media, and tunica adventitia. In the infected mouse model, DENV distorted the endothelium lining and disturbed the smooth muscle, elastic laminae and their supporting tissues causing vascular structural disarrangement. This may explain the severe pathological illness in DENV-infected individuals. The overall DENV-induced damages on the endothelial and it's supporting tissues and the dysregulated immune reactions initiated by the host were discussed.
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39
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Singh S, Anupriya MG, Sreekumar E. Comparative whole genome analysis of dengue virus serotype-2 strains differing in trans-endothelial cell leakage induction in vitro. INFECTION GENETICS AND EVOLUTION 2017; 52:34-43. [PMID: 28456663 DOI: 10.1016/j.meegid.2017.04.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/24/2017] [Accepted: 04/25/2017] [Indexed: 11/16/2022]
Abstract
The role of genetic differences among dengue virus (DENV) in causing increased microvascular permeability is less explored. In the present study, we compared two closely related DENV serotype-2 strains of Cosmopolitan genotype for their in vitro infectivity phenotype and ability to induce trans-endothelial leakage. We found that these laboratory strains differed significantly in infecting human microvascular endothelial cells (HMEC-1) and hepatocytes (Huh7), two major target cells of DENV in in vivo infections. There was a reciprocal correlation in infectivity and vascular leakage induced by these strains, with the less infective strain inducing more trans-endothelial cell leakage in HMEC-1 monolayer upon infection. The cells infected with the strain capable of inducing more permeability were found to secrete more Non-Structural protein (sNS1) into the culture supernatant. A whole genome analysis revealed 37 predicted amino acid changes and changes in the secondary structure of 3' non-translated region between the strains. But none of these changes involved the signal sequence coded by the C-terminal of the Envelope protein and the two glycosylation sites within the NS1 protein critical for its secretion, and the N-terminal NS2A sequence important for surface targeting of NS1. The strain that secreted lower levels of NS1 and caused less leakage had two mutations within the NS1 protein coding region, F103S and T146I that significantly changed amino acid properties. A comparison of the sequences of the two strains with published sequences of various DENV strains known to cause clinically severe dengue identified a number of amino acid changes which could be implicated as possible key genetic differences. Our data supports the earlier observations that the vascular leakage induction potential of DENV strains is linked to the sNS1 levels. The results also indicate that viral genetic determinants, especially the mutations within the NS1 coding region, could affect this critical phenotype of DENV strains.
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Affiliation(s)
- Sneha Singh
- Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud P.O., Thiruvananthapuram 695014, Kerala, India
| | - M G Anupriya
- Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud P.O., Thiruvananthapuram 695014, Kerala, India
| | - Easwaran Sreekumar
- Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud P.O., Thiruvananthapuram 695014, Kerala, India.
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40
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Immune-mediated cytokine storm and its role in severe dengue. Semin Immunopathol 2017; 39:563-574. [PMID: 28401256 DOI: 10.1007/s00281-017-0625-1] [Citation(s) in RCA: 150] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 04/02/2017] [Indexed: 01/28/2023]
Abstract
Dengue remains one of the most important mosquito-borne diseases worldwide. Infection with one of the serologically related dengue viruses (DENVs) can lead to a wide range of clinical manifestations and severity. Severe dengue is characterized by plasma leakage and abnormal bleeding that can lead to shock and death. There is currently no specific treatment for severe dengue due to gaps in understanding of the underlying mechanisms. The transient period of vascular leakage is usually followed by a rapid recovery and is suggestive of the effects of short-lived biological mediators. Both the innate and the adaptive immune systems are activated in severe dengue and contribute to the cytokine production. We discuss the immunological events elicited during a DENV infection and identify candidate cytokines that may play a key role in the severe manifestations of dengue and possible interventions.
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41
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Selmi C, Barin JG, Rose NR. Current trends in autoimmunity and the nervous system. J Autoimmun 2016; 75:20-29. [DOI: 10.1016/j.jaut.2016.08.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Accepted: 08/06/2016] [Indexed: 01/17/2023]
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42
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Shigematsu M, Koga T, Ishimori A, Saeki K, Ishii Y, Taketomi Y, Ohba M, Jo-Watanabe A, Okuno T, Harada N, Harayama T, Shindou H, Li JD, Murakami M, Hoka S, Yokomizo T. Leukotriene B 4 receptor type 2 protects against pneumolysin-dependent acute lung injury. Sci Rep 2016; 6:34560. [PMID: 27703200 PMCID: PMC5050523 DOI: 10.1038/srep34560] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 09/15/2016] [Indexed: 01/23/2023] Open
Abstract
Although pneumococcal infection is a serious problem worldwide and has a high mortality rate, the molecular mechanisms underlying the lethality caused by pneumococcus remain elusive. Here, we show that BLT2, a G protein-coupled receptor for leukotriene B4 and 12(S)-hydroxyheptadecatrienoic acid (12-HHT), protects mice from lung injury caused by a pneumococcal toxin, pneumolysin (PLY). Intratracheal injection of PLY caused lethal acute lung injury (ALI) in BLT2-deficient mice, with evident vascular leakage and bronchoconstriction. Large amounts of cysteinyl leukotrienes (cysLTs), classically known as a slow reactive substance of anaphylaxis, were detected in PLY-treated lungs. PLY-dependent vascular leakage, bronchoconstriction, and death were markedly ameliorated by treatment with a CysLT1 receptor antagonist. Upon stimulation by PLY, mast cells produced cysLTs that activated CysLT1 expressed in vascular endothelial cells and bronchial smooth muscle cells, leading to lethal vascular leakage and bronchoconstriction. Treatment of mice with aspirin or loxoprofen inhibited the production of 12-HHT and increased the sensitivity toward PLY, which was also ameliorated by the CysLT1 antagonist. Thus, the present study identifies the molecular mechanism underlying PLY-dependent ALI and suggests the possible use of CysLT1 antagonists as a therapeutic tool to protect against ALI caused by pneumococcal infection.
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Affiliation(s)
- Misako Shigematsu
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.,Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoaki Koga
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Ayako Ishimori
- Department of Respiratory Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Kazuko Saeki
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Yumiko Ishii
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshitaka Taketomi
- Lipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Mai Ohba
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Airi Jo-Watanabe
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Toshiaki Okuno
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Norihiro Harada
- Department of Respiratory Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Takeshi Harayama
- Lipid Signaling Project, National Center for Global Health and Medicine, Tokyo, Japan.,Department of Biochemistry, University of Geneva, Geneva, Switzerland
| | - Hideo Shindou
- Lipid Signaling Project, National Center for Global Health and Medicine, Tokyo, Japan
| | - Jian-Dong Li
- Center for Inflammation, Immunity and Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Makoto Murakami
- Lipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Sumio Hoka
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
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43
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Inyoo S, Suttitheptumrong A, Pattanakitsakul SN. Synergistic Effect of TNF-α and Dengue Virus Infection on Adhesion Molecule Reorganization in Human Endothelial Cells. Jpn J Infect Dis 2016; 70:186-191. [PMID: 27580574 DOI: 10.7883/yoken.jjid.2016.123] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS) is a severe pathological manifestation of dengue virus (DENV) infection. Enhanced production of cytokines in dengue patients is proposed to induce endothelial barrier instability resulting in increased vascular leakage. Tumor necrosis factor (TNF)-α is an inflammatory cytokine that activates endothelial cells and enhances vascular permeability and plasma leakage in DHF/DSS. The present study investigated the in vitro effect of TNF-α and DENV infection on the expression of adherence junction proteins, tight junction proteins, and membrane integrity of human endothelial cell lines. Immunofluorescence staining and western blot analysis demonstrated platelet endothelial cell adhesion molecule-1 (PECAM-1) reorganization and decreased levels of the tight junction protein occludin in human endothelial cells treated with TNF-α and DENV, compared to mock, DENV, or TNF-α-treated cells. Permeability assessed by FITC-dextran as a transport molecule was increased and correlated with the unusual reorganization of PECAM-1. The altered distribution of PECAM-1 and low occludin protein levels in human endothelial cells treated with TNF-α and DENV correlated with increased permeability. In conclusion, the synergistic effect of TNF-α and DENV induced permeability changes in endothelial cells. These results contribute to the understanding of the mechanisms underlying enhanced vascular permeability in DENV infection.
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Affiliation(s)
- Sivaporn Inyoo
- Division of Molecular Medicine, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University
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Alayli F, Scholle F. Dengue virus NS1 enhances viral replication and pro-inflammatory cytokine production in human dendritic cells. Virology 2016; 496:227-236. [PMID: 27348054 DOI: 10.1016/j.virol.2016.06.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 06/06/2016] [Accepted: 06/10/2016] [Indexed: 12/31/2022]
Abstract
Dengue virus (DV) has become the most prevalent arthropod borne virus due to globalization and climate change. It targets dendritic cells during infection and leads to production of pro-inflammatory cytokines and chemokines. Several DV non-structural proteins (NS) modulate activation of human dendritic cells. We investigated the effect of DV NS1 on human monocyte-derived dendritic cells (mo-DCs) during dengue infection. NS1 is secreted into the serum of infected individuals where it interacts with various immune mediators and cell types. We purified secreted DV1 NS1 from supernatants of 293T cells that over-express the protein. Upon incubation with mo-DCs, we observed NS1 uptake and enhancement of early DV1 replication. As a consequence, mo-DCs that were pre-exposed to NS1 produced more pro-inflammatory cytokines in response to subsequent DV infection compared to DCs exposed to heat-inactivated NS1 (HNS1). Therefore the presence of exogenous NS1 is able to modulate dengue infection in mo-DCs.
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Affiliation(s)
- Farah Alayli
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA
| | - Frank Scholle
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA.
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Bogorad MI, DeStefano J, Karlsson J, Wong AD, Gerecht S, Searson PC. Review: in vitro microvessel models. LAB ON A CHIP 2015; 15:4242-55. [PMID: 26364747 PMCID: PMC9397147 DOI: 10.1039/c5lc00832h] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A wide range of perfusable microvessel models have been developed, exploiting advances in microfabrication, microfluidics, biomaterials, stem cell technology, and tissue engineering. These models vary in complexity and physiological relevance, but provide a diverse tool kit for the study of vascular phenomena and methods to vascularize artificial organs. Here we review the state-of-the-art in perfusable microvessel models, summarizing the different fabrication methods and highlighting advantages and limitations.
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Affiliation(s)
- Max I Bogorad
- Institute for Nanobiotechnology (INBT), 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, Maryland 21218, USA.
| | - Jackson DeStefano
- Institute for Nanobiotechnology (INBT), 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, Maryland 21218, USA.
| | - Johan Karlsson
- Institute for Nanobiotechnology (INBT), 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, Maryland 21218, USA.
| | - Andrew D Wong
- Institute for Nanobiotechnology (INBT), 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, Maryland 21218, USA.
| | - Sharon Gerecht
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Peter C Searson
- Institute for Nanobiotechnology (INBT), 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, Maryland 21218, USA. and Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
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Dengue Virus-Induced Inflammation of the Endothelium and the Potential Roles of Sphingosine Kinase-1 and MicroRNAs. Mediators Inflamm 2015; 2015:509306. [PMID: 26609198 PMCID: PMC4644833 DOI: 10.1155/2015/509306] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 10/02/2015] [Accepted: 10/08/2015] [Indexed: 01/24/2023] Open
Abstract
One of the main pathogenic effects of severe dengue virus (DENV) infection is a vascular leak syndrome. There are no available antivirals or specific DENV treatments and without hospital support severe DENV infection can be life-threatening. The cause of the vascular leakage is permeability changes in the endothelial cells lining the vasculature that are brought about by elevated vasoactive cytokine and chemokines induced following DENV infection. The source of these altered cytokine and chemokines is traditionally believed to be from DENV-infected cells such as monocyte/macrophages and dendritic cells. Herein we discuss the evidence for the endothelium as an additional contributor to inflammatory and innate responses during DENV infection which may affect endothelial cell function, in particular the ability to maintain vascular integrity. Furthermore, we hypothesise roles for two factors, sphingosine kinase-1 and microRNAs (miRNAs), with a focus on several candidate miRNAs, which are known to control normal vascular function and inflammatory responses. Both of these factors may be potential therapeutic targets to regulate inflammation of the endothelium during DENV infection.
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Stolwijk JA, Matrougui K, Renken CW, Trebak M. Impedance analysis of GPCR-mediated changes in endothelial barrier function: overview and fundamental considerations for stable and reproducible measurements. Pflugers Arch 2015; 467:2193-218. [PMID: 25537398 PMCID: PMC4480219 DOI: 10.1007/s00424-014-1674-0] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 12/11/2014] [Accepted: 12/11/2014] [Indexed: 12/19/2022]
Abstract
The past 20 years has seen significant growth in using impedance-based assays to understand the molecular underpinning of endothelial and epithelial barrier function in response to physiological agonists and pharmacological and toxicological compounds. Most studies on barrier function use G protein-coupled receptor (GPCR) agonists which couple to fast and transient changes in barrier properties. The power of impedance-based techniques such as electric cell-substrate impedance sensing (ECIS) resides in its ability to detect minute changes in cell layer integrity label-free and in real-time ranging from seconds to days. We provide a comprehensive overview of the biophysical principles, applications, and recent developments in impedance-based methodologies. Despite extensive application of impedance analysis in endothelial barrier research, little attention has been paid to data analysis and critical experimental variables, which are both essential for signal stability and reproducibility. We describe the rationale behind common ECIS data presentation and interpretation and illustrate practical guidelines to improve signal intensity by adapting technical parameters such as electrode layout, monitoring frequency, or parameter (resistance versus impedance magnitude). Moreover, we discuss the impact of experimental parameters, including cell source, liquid handling, and agonist preparation on signal intensity and kinetics. Our discussions are supported by experimental data obtained from human microvascular endothelial cells challenged with three GPCR agonists, thrombin, histamine, and sphingosine-1-phosphate.
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Affiliation(s)
- Judith A Stolwijk
- The SUNY College of Nanoscale Science and Engineering (CNSE), SUNY Polytechnic Institute, State University of New York, 257 Fuller Rd., Albany, NY, 12203, USA
- Applied BioPhysics Inc., Troy, NY, USA
| | - Khalid Matrougui
- Department of Physiological Sciences, East Virginia Medical School, Norfolk, VA, USA
| | | | - Mohamed Trebak
- The SUNY College of Nanoscale Science and Engineering (CNSE), SUNY Polytechnic Institute, State University of New York, 257 Fuller Rd., Albany, NY, 12203, USA.
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Bynoe MS, Viret C, Yan A, Kim DG. Adenosine receptor signaling: a key to opening the blood-brain door. Fluids Barriers CNS 2015; 12:20. [PMID: 26330053 PMCID: PMC4557218 DOI: 10.1186/s12987-015-0017-7] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 08/25/2015] [Indexed: 12/12/2022] Open
Abstract
The aim of this review is to outline evidence that adenosine receptor (AR) activation can modulate blood–brain barrier (BBB) permeability and the implications for disease states and drug delivery. Barriers of the central nervous system (CNS) constitute a protective and regulatory interface between the CNS and the rest of the organism. Such barriers allow for the maintenance of the homeostasis of the CNS milieu. Among them, the BBB is a highly efficient permeability barrier that separates the brain micro-environment from the circulating blood. It is made up of tight junction-connected endothelial cells with specialized transporters to selectively control the passage of nutrients required for neural homeostasis and function, while preventing the entry of neurotoxic factors. The identification of cellular and molecular mechanisms involved in the development and function of CNS barriers is required for a better understanding of CNS homeostasis in both physiological and pathological settings. It has long been recognized that the endogenous purine nucleoside adenosine is a potent modulator of a large number of neurological functions. More recently, experimental studies conducted with human/mouse brain primary endothelial cells as well as with mouse models, indicate that adenosine markedly regulates BBB permeability. Extracellular adenosine, which is efficiently generated through the catabolism of ATP via the CD39/CD73 ecto-nucleotidase axis, promotes BBB permeability by signaling through A1 and A2A ARs expressed on BBB cells. In line with this hypothesis, induction of AR signaling by selective agonists efficiently augments BBB permeability in a transient manner and promotes the entry of macromolecules into the CNS. Conversely, antagonism of AR signaling blocks the entry of inflammatory cells and soluble factors into the brain. Thus, AR modulation of the BBB appears as a system susceptible to tighten as well as to permeabilize the BBB. Collectively, these findings point to AR manipulation as a pertinent avenue of research for novel strategies aiming at efficiently delivering therapeutic drugs/cells into the CNS, or at restricting the entry of inflammatory immune cells into the brain in some diseases such as multiple sclerosis.
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Affiliation(s)
- Margaret S Bynoe
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, 1853, USA.
| | - Christophe Viret
- INSERM U1111-CIRI, CNRS UMR5308, Université Lyon 1 and ENS Lyon, 69365, Lyon, France.
| | - Angela Yan
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, 1853, USA.
| | - Do-Geun Kim
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, 1853, USA.
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Calvert JK, Helbig KJ, Dimasi D, Cockshell M, Beard MR, Pitson SM, Bonder CS, Carr JM. Dengue Virus Infection of Primary Endothelial Cells Induces Innate Immune Responses, Changes in Endothelial Cells Function and Is Restricted by Interferon-Stimulated Responses. J Interferon Cytokine Res 2015; 35:654-65. [PMID: 25902155 DOI: 10.1089/jir.2014.0195] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Although endothelial cell (EC) infection is not widespread during dengue virus (DENV) infection in vivo, the endothelium is the site of the pathogenic effects seen in severe DENV disease. In this study, we investigated DENV infection of primary EC and defined factors that influence infection in this cell type. Consistent with in vivo findings where EC infection is infrequent, only 3%-15% of EC became productively DENV-2-infected in vitro. This low level infection could not be attributed to inhibition by heparin, EC donor variation, heterogeneity, or biological source. DENV-infection of EC was associated with induction of innate immune responses, including increased STAT1 protein, STAT1- phosphorylation, interferon (IFN)-β, OAS-1, IFIT-1/ISG56, and viperin mRNA. Antibody blocking of IFN-β inhibited the induction of OAS1, IFIT1/ISG56, and viperin while shRNA knockdown of viperin enhanced DENV-infection in EC. DENV-infection of EC resulted in increased activity of sphingosine kinase 1, a factor important in maintaining vascular integrity, and altered basal and stimulated changes in barrier integrity of DENV-infected EC monolayers. Thus, DENV productively infects only a small percentage of primary EC but this has a major influence on induction of IFN-β driven innate immune responses that can restrict infection while the EC themselves are functionally altered. These changes may have important consequences for the endothelium and are reflective of pathogenic changes associated with vascular leakage, as seen in DENV disease.
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Affiliation(s)
- Julie K Calvert
- 1 Microbiology and Infectious Diseases, School of Medicine, Flinders University , Adelaide, South Australia
| | - Karla J Helbig
- 2 School of Molecular and Biomedical Science, University of Adelaide , Adelaide, South Australia
| | - David Dimasi
- 3 Centre for Cancer Biology, University of South Australia and SA Pathology , Adelaide, South Australia
| | - Michaelia Cockshell
- 3 Centre for Cancer Biology, University of South Australia and SA Pathology , Adelaide, South Australia
| | - Michael R Beard
- 2 School of Molecular and Biomedical Science, University of Adelaide , Adelaide, South Australia.,3 Centre for Cancer Biology, University of South Australia and SA Pathology , Adelaide, South Australia
| | - Stuart M Pitson
- 3 Centre for Cancer Biology, University of South Australia and SA Pathology , Adelaide, South Australia
| | - Claudine S Bonder
- 3 Centre for Cancer Biology, University of South Australia and SA Pathology , Adelaide, South Australia
| | - Jillian M Carr
- 1 Microbiology and Infectious Diseases, School of Medicine, Flinders University , Adelaide, South Australia
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50
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Alagarasu K, Bachal RV, Tillu H, Mulay AP, Kakade MB, Shah PS, Cecilia D. Association of combinations of interleukin-10 and pro-inflammatory cytokine gene polymorphisms with dengue hemorrhagic fever. Cytokine 2015; 74:130-6. [PMID: 25890879 DOI: 10.1016/j.cyto.2015.03.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 03/11/2015] [Accepted: 03/31/2015] [Indexed: 12/26/2022]
Abstract
Pro-inflammatory and anti-inflammatory cytokines have been shown to play an important role in dengue disease pathogenesis. In the present study, to find out whether single nucleotide polymorphisms (SNPs) in the pro-inflammatory and anti-inflammatory cytokine genes are associated with dengue disease severity, SNPs in TNF, IFNG, IL1B, IL8, IL0, IL17A and IL17F genes were investigated using polymerase chain reaction based methods in 132 dengue (DEN) cases [87 dengue fever (DF), 45 dengue hemorrhagic fever (DHF) cases] and 108 apparently healthy controls (HC) from Pune, Maharashtra, western India. Under recessive genetic model (C/C vs. T/T+T/C), the TNF rs1799964 C/C genotype was significantly associated with DEN [P=0.014, OR with 95% CI 3.07 (1.18-7.98)]. Frequency of T/C genotype of IL17F rs763780 was significantly lower in DEN group as compared to HC [P=0.033, OR with 95% CI 0.43 (0.19-0.95)]. Under overdominant genetic model (A/T vs. A/A+T/T), IL8 rs4973 A/T genotype was negatively associated with DHF compared to HCs [p=0.029, OR with 95% CI 0.43 (0.20-0.93)]. Under overdominant genetic model, A/G genotype of IL10 rs1800871 was significantly negatively associated with DHF compared to DF cases [p=0.014, OR with 95% CI 0.35 (0.15-0.84)]. Significantly higher frequency of the combined genotype IL10 A/A-IFNG A/T and lower frequency of the combined genotypes IL10 A/G-IL1B A/A, IL10 A/G-IL8 A/T and IL10 A/G-IL17F T/T were observed in DHF cases compared to DF. The results suggest that heterozygous genotypes of IL8 rs4973 and IL10 rs1800871 are associated with reduced risk of DHF. Combinations of IL10 rs1800871 and pro-inflammatory cytokine genotypes influence the risk of DHF.
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Affiliation(s)
- K Alagarasu
- Dengue Group, National Institute of Virology, 20 A, Dr Ambedkar Road, Pune 411001, Maharashtra, India.
| | - R V Bachal
- Dengue Group, National Institute of Virology, 20 A, Dr Ambedkar Road, Pune 411001, Maharashtra, India
| | - H Tillu
- Dengue Group, National Institute of Virology, 20 A, Dr Ambedkar Road, Pune 411001, Maharashtra, India
| | - A P Mulay
- Dengue Group, National Institute of Virology, 20 A, Dr Ambedkar Road, Pune 411001, Maharashtra, India
| | - M B Kakade
- Dengue Group, National Institute of Virology, 20 A, Dr Ambedkar Road, Pune 411001, Maharashtra, India
| | - P S Shah
- Dengue Group, National Institute of Virology, 20 A, Dr Ambedkar Road, Pune 411001, Maharashtra, India
| | - D Cecilia
- Dengue Group, National Institute of Virology, 20 A, Dr Ambedkar Road, Pune 411001, Maharashtra, India
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