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Vedpathak S, Sharma A, Palkar S, Bhatt VR, Patil VC, Kakrani AL, Mishra A, Bhosle D, Arankalle VA, Shrivastava S. Platelet derived exosomes disrupt endothelial cell monolayer integrity and enhance vascular inflammation in dengue patients. Front Immunol 2024; 14:1285162. [PMID: 38235130 PMCID: PMC10791899 DOI: 10.3389/fimmu.2023.1285162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 12/07/2023] [Indexed: 01/19/2024] Open
Abstract
Background Thrombocytopenia is the most notable phenomenon in dengue. Activation status of platelets and interaction of platelets with endothelium contribute towards dengue disease pathogenesis. Platelets are the major cell types known to release extracellular vesicles, especially exosomes in circulation. However, the role of platelet derived exosomes (PLT-EXOs) in endothelial dysfunction during dengue infection remains unknown. Methods In this study, we recruited 28 healthy subjects and 69 dengue patients categorized as WS- (n=31), WS+ (n=29) and SD (n=9). Platelets were isolated from platelet rich plasma of dengue patients and their activation was assessed by flow cytometry. PLT-EXOs were isolated by ultracentrifugation method. Western blot analyses were performed to characterize the exosomes. Exosome uptake experiment was carried out to see the internalization of exosomes inside endothelial cells (HUVECs). To observe the effect of exosomes on endothelial cells, exosomes were added on HUVECs and expression of adherens and tight junctional proteins were examined by immunofluorescence assay and western blot. Expression levels of vascular injury markers were measured in the culture supernatants of Exosome-HUVEC coculture and sera of dengue patients by MSD-multiplex assay. Results As compared to healthy subjects, CD41/CD61 expression was significantly reduced (p<0.0001) and CD62p expression was significantly increased (p<0.0001) on platelets in dengue patients. PLT-EXOs isolated from the dengue patients showed higher expression of CD63 and CD9 proteins than the healthy subjects. With in-vitro immunofluorescence assays, we illustrated the internalization of PLT-EXOs by the HUVECs and observed disruption of endothelial cell monolayer integrity in the presence of PLT-EXOs from WS+ and SD patients. Furthermore, the significant reduction in the expressions of ZO-2, VE-Cadherin and CD31 in endothelial cells following exposure to PLT-EXOs from the dengue patients provide direct evidence of PLT-EXOs mediated vascular permeability. PLT-EXOs stimulated the release of inflammatory markers CRP, SAA, sVCAM-1 and sICAM-1 in the supernatants of HUVEC cells. Importantly, significantly higher levels of CRP, sVCAM-1 and sICAM-1 in the sera of severe than mild dengue patients (p<0.0001) suggest their role in disease severity. Conclusions In summary, our data suggest that PLT-EXOs promote vascular leakage via release of proinflammatory mediators and compromise vascular barrier integrity in dengue patients.
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Affiliation(s)
- Sayali Vedpathak
- Department of Communicable Diseases, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune, India
| | - Archana Sharma
- Department of Communicable Diseases, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune, India
| | - Sonali Palkar
- Department of Community Medicine, Bharati Vidyapeeth (Deemed to be University) Medical College and Hospital, Pune, India
| | - Varsha R. Bhatt
- Department of Clinical Immunology and Rheumatology, Bharati Vidyapeeth (Deemed to be University) Medical College and Hospital, Pune, India
| | - Vishwanath Chandrashekhar Patil
- Department of Critical Care Medicine, Bharati Vidyapeeth (Deemed to be University) Medical College and Hospital, Pune, India
| | - Arjun L. Kakrani
- Department of Medicine, Dr. D. Y. Patil Medical College Hospital & Research Centre, Dr. D .Y. Patil Vidyapeeth, Pune, India
| | - AkhileshChandra Mishra
- Department of Communicable Diseases, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune, India
| | - Deepak Bhosle
- Department of Medicine, Bharati Vidyapeeth (Deemed to be University) Medical College and Hospital, Pune, India
| | - Vidya A. Arankalle
- Department of Communicable Diseases, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune, India
| | - Shubham Shrivastava
- Department of Communicable Diseases, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune, India
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Carestia A, Godin LC, Jenne CN. Step up to the platelet: Role of platelets in inflammation and infection. Thromb Res 2023; 231:182-194. [PMID: 36307228 DOI: 10.1016/j.thromres.2022.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/28/2022] [Accepted: 10/03/2022] [Indexed: 11/18/2022]
Abstract
Platelets are anucleated cells derived from megakaryocytes that are primarily responsible for hemostasis. However, in recent years, these cytoplasts have become increasingly recognized as immune cells, able to detect, interact with, and kill pathogens. As platelets are involved in both immunity and coagulation, they have a central role in immunothrombosis, a physiological process in which immune cells induce the formation of microthrombi to both prevent the spread of pathogens, and to help facilitate clearance. In this review, we will highlight the role of platelets as key players in the inflammatory and innate immune response against bacterial and viral infection, including direct and indirect interactions with pathogens and other immune cells.
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Affiliation(s)
- Agostina Carestia
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada.
| | - Laura C Godin
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada.
| | - Craig N Jenne
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada.
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3
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Anantharaj A, Agrawal T, Shashi PK, Tripathi A, Kumar P, Khan I, Pareek M, Singh B, Pattabiraman C, Kumar S, Pandey R, Chandele A, Lodha R, Whitehead SS, Medigeshi GR. Neutralizing antibodies from prior exposure to dengue virus negatively correlate with viremia on re-infection. COMMUNICATIONS MEDICINE 2023; 3:148. [PMID: 37857747 PMCID: PMC10587183 DOI: 10.1038/s43856-023-00378-7] [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: 04/13/2023] [Accepted: 10/04/2023] [Indexed: 10/21/2023] Open
Abstract
BACKGROUND India is hyperendemic to dengue and over 50% of adults are seropositive. There is limited information on the association between neutralizing antibody profiles from prior exposure and viral RNA levels during subsequent infection. METHODS Samples collected from patients with febrile illness was used to assess seropositivity by indirect ELISA. Dengue virus (DENV) RNA copy numbers were estimated by quantitative RT-PCR and serotype of the infecting DENV was determined by nested PCR. Focus reduction neutralizing antibody titer (FRNT) assay was established using Indian isolates to measure the levels of neutralizing antibodies and also to assess the cross-reactivity to related flaviviruses namely Zika virus (ZIKV), Japanese encephalitis virus (JEV) and West Nile virus (WNV). RESULTS In this cross-sectional study, we show that dengue seropositivity increased from 52% in the 0-15 years group to 89% in >45 years group. Antibody levels negatively correlate with dengue RNAemia on the day of sample collection and higher RNAemia is observed in primary dengue as compared to secondary dengue. The geometric mean FRNT50 titers for DENV-2 is significantly higher as compared to the other three DENV serotypes. We observe cross-reactivity with ZIKV and significantly lower or no neutralizing antibodies against JEV and WNV. The FRNT50 values for international isolates of DENV-1, DENV-3 and DENV-4 is significantly lower as compared to Indian isolates. CONCLUSIONS Majority of the adult population in India have neutralizing antibodies to all the four DENV serotypes which correlates with reduced RNAemia during subsequent infection suggesting that antibodies can be considered as a good correlate of protection.
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Affiliation(s)
- Anbalagan Anantharaj
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Tanvi Agrawal
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Pooja Kumari Shashi
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Alok Tripathi
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Parveen Kumar
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Imran Khan
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Madhu Pareek
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Balwant Singh
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | | | - Saurabh Kumar
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Rajesh Pandey
- INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) laboratory, Division of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Anmol Chandele
- ICGEB-Emory Vaccine Center, International Center for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, India
| | - Rakesh Lodha
- Department of Pediatrics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Stephen S Whitehead
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Guruprasad R Medigeshi
- Bioassay laboratory and Clinical and Cellular Virology lab, Translational Health Science and Technology Institute, Faridabad, Haryana, India.
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4
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Pinheiro MBM, Rozini SV, Quirino-Teixeira AC, Barbosa-Lima G, Lopes JF, Sacramento CQ, Bozza FA, Bozza PT, Hottz ED. Dengue induces iNOS expression and nitric oxide synthesis in platelets through IL-1R. Front Immunol 2022; 13:1029213. [PMID: 36569864 PMCID: PMC9767985 DOI: 10.3389/fimmu.2022.1029213] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/09/2022] [Indexed: 12/12/2022] Open
Abstract
Introduction Dengue is an arthropod-born disease caused by dengue virus (DENV), that may manifest as a mild illness or severe form, characterized by hemorrhagic fever and shock. Nitric oxide (NO) is a vasodilator signaling molecule and an inhibitor of platelet aggregation known to be increased in platelets from dengue patients. However, the mechanisms underlying NO synthesis by platelets during dengue are not yet elucidated. IL-1β is a pro-inflammatory cytokine able to induce iNOS expression in leukocytes and present in dengue patients at high levels. Nevertheless, the role of IL-1β in platelet activation, especially regarding iNOS expression, are not clear. Methods We prospectively followed a cohort of 28 dengue-infected patients to study NO synthesis in platelets and its relationship with disease outcomes. We used in vitro infection and stimulation models to gain insights on the mechanisms. Results and Discussion We confirmed that platelets from dengue patients express iNOS and produce higher levels of NO during the acute phase compared to healthy volunteers, returning to normal levels after recovery. Platelet NO production during acute dengue infection was associated with the presence of warning signs, hypoalbuminemia and hemorrhagic manifestations, suggesting a role in dengue pathophysiology. By investigating the mechanisms, we evidenced increased iNOS expression in platelets stimulated with dengue patients´ plasma, indicating induction by circulating inflammatory mediators. We then investigated possible factors able to induce platelet iNOS expression and observed higher levels of IL-1β in plasma from patients with dengue, which were correlated with NO production by platelets. Since platelets can synthesize and respond to IL-1β, we investigated whether IL-1β induces iNOS expression and NO synthesis in platelets. We observed that recombinant human IL-1β enhanced iNOS expression and dose-dependently increased NO synthesis by platelets. Finally, platelet infection with DENV in vitro induced iNOS expression and NO production, besides the secretion of both IL-1α and IL-1β. Importantly, treatment with IL-1 receptor antagonist or a combination of anti-IL-1α and anti-IL-1β antibodies prevented DENV-induced iNOS expression and NO synthesis. Our data show that DENV induces iNOS expression and NO production in platelets through mechanisms depending on IL-1 receptor signaling.
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Affiliation(s)
- Mariana Brandi Mendonça Pinheiro
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Stephane Vicente Rozini
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Anna Cecíllia Quirino-Teixeira
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Giselle Barbosa-Lima
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Juliana F. Lopes
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Carolina Q. Sacramento
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil,National Institute for Science and Technology on Innovation in Diseases of Neglected Populations (INCT/IDPN), Center for Technological Development in Health (CDTS), Fiocruz, Rio de Janeiro, Brazil
| | - Fernando A. Bozza
- National Institute of Infectious Disease Evandro Chagas, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil,D’Or Institute for Research and Education, Rio de Janeiro, Brazil
| | - Patrícia T. Bozza
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Eugenio D. Hottz
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil,Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil,*Correspondence: Eugenio D. Hottz,
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Platelet proteome reveals features of cell death, antiviral response and viral replication in covid-19. Cell Death Dis 2022; 8:324. [PMID: 35842415 PMCID: PMC9287722 DOI: 10.1038/s41420-022-01122-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/30/2022] [Accepted: 07/05/2022] [Indexed: 12/15/2022]
Abstract
Coronavirus disease 2019 (COVID-19) has affected over 400 million people worldwide, leading to 6 million deaths. Among the complex symptomatology of COVID-19, hypercoagulation and thrombosis have been described to directly contribute to lethality, pointing out platelets as an important SARS-CoV-2 target. In this work, we explored the platelet proteome of COVID-19 patients through a label-free shotgun proteomics approach to identify platelet responses to infection, as well as validation experiments in a larger patient cohort. Exclusively detected proteins (EPs) and differentially expressed proteins (DEPs) were identified in the proteomic dataset and thus classified into biological processes to map pathways correlated with pathogenesis. Significant changes in the expression of proteins related to platelet activation, cell death, and antiviral response through interferon type-I were found in all patients. Since the outcome of COVID-19 varies highly among individuals, we also performed a cross-comparison of proteins found in survivors and nonsurvivors. Proteins belonging to the translation pathway were strongly highlighted in the nonsurvivor group. Moreover, the SARS-CoV-2 genome was fully sequenced in platelets from five patients, indicating viral internalization and preprocessing, with CD147 as a potential entry route. In summary, platelets play a significant role in COVID-19 pathogenesis via platelet activation, antiviral response, and disease severity.
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6
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Losada PX, DeLaura I, Narváez CF. Dengue Virus and Platelets: From the Biology to the Clinic. Viral Immunol 2022; 35:349-358. [PMID: 35483090 DOI: 10.1089/vim.2021.0135] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dengue is one of the most important vector-borne viral illnesses found in tropical and subtropical regions. Colombia has one of the highest rates of dengue cases in the Americas. Severe dengue virus (DENV) infection presents with capillary leakage, hemorrhage, and organ compromise, eventually leading to death. Over the years, there have been many efforts to develop a vaccine that guarantees protective immunity, but they have been partially successful, as such immunity would need to guarantee protection against four distinct viral serotypes. Absolute platelet count is a laboratory parameter used to monitor the clinical progression of DENV, as infection is often accompanied by thrombocytopenia. Although this finding is well described with respect to the natural history of the disease, there are various hypotheses as to the cause of this rapid decrease, and several in vivo and ex vivo models have been used to explain the effect of DENV infection on platelets and their precursors. DENV infects and activates platelets, facilitating their elimination through recognition by phagocytic cells and peripheral margination. However, infection also affects the precursors in the bone marrow by modulating megakaryopoiesis. The objective of this article is to explore various proposed mechanisms of DENV-induced thrombocytopenia to better understand the pathophysiology and clinical presentations of this highly relevant viral infection.
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Affiliation(s)
- Paula X Losada
- División de Inmunología, Programa de Medicina, Facultad de Salud, Universidad Surcolombiana, Neiva, Huila, Colombia
| | - Isabel DeLaura
- Duke University School of Medicine, Durham, North Carolina, USA
| | - Carlos F Narváez
- División de Inmunología, Programa de Medicina, Facultad de Salud, Universidad Surcolombiana, Neiva, Huila, Colombia
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7
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Schrottmaier WC, Schmuckenschlager A, Pirabe A, Assinger A. Platelets in Viral Infections - Brave Soldiers or Trojan Horses. Front Immunol 2022; 13:856713. [PMID: 35419008 PMCID: PMC9001014 DOI: 10.3389/fimmu.2022.856713] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/03/2022] [Indexed: 11/13/2022] Open
Abstract
Viral infections are often associated with platelet activation and haemostatic complications. In line, low platelet counts represent a hallmark for poor prognosis in many infectious diseases. The underlying cause of platelet dysfunction in viral infections is multifaceted and complex. While some viruses directly interact with platelets and/or megakaryocytes to modulate their function, also immune and inflammatory responses directly and indirectly favour platelet activation. Platelet activation results in increased platelet consumption and degradation, which contributes to thrombocytopenia in these patients. The role of platelets is often bi-phasic. Initial platelet hyper-activation is followed by a state of platelet exhaustion and/or hypo-responsiveness, which together with low platelet counts promotes bleeding events. Thereby infectious diseases not only increase the thrombotic but also the bleeding risk or both, which represents a most dreaded clinical complication. Treatment options in these patients are limited and new therapeutic strategies are urgently needed to prevent adverse outcome. This review summarizes the current literature on platelet-virus interactions and their impact on viral pathologies and discusses potential intervention strategies. As pandemics and concomitant haemostatic dysregulations will remain a recurrent threat, understanding the role of platelets in viral infections represents a timely and pivotal challenge.
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Affiliation(s)
- Waltraud C Schrottmaier
- Institute of Vascular Biology and Thrombosis Research, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Anna Schmuckenschlager
- Institute of Vascular Biology and Thrombosis Research, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Anita Pirabe
- Institute of Vascular Biology and Thrombosis Research, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Alice Assinger
- Institute of Vascular Biology and Thrombosis Research, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
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8
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Balakrishna Pillai AK, Chu JJH, Mariappan V, JeanPierre AR. Platelets in the pathogenesis of flavivirus disease. Curr Opin Virol 2021; 52:220-228. [PMID: 34968791 DOI: 10.1016/j.coviro.2021.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/16/2021] [Accepted: 12/07/2021] [Indexed: 02/06/2023]
Abstract
Research on the role of platelets in modulating innate and adaptive host immune responses has gaining importance in the last two decades. Since the virus can directly interact with platelet receptors and modulate the host immune response, understanding the role of platelets in viral pathogenesis would pave way for novel therapeutic means. The present review aims at presenting the important molecular aspects of platelet-flavivirus interactions and how it leads to platelet activation, thrombocytopenia, and vascular endothelial leakage. Besides, the role of some of the platelet-derived factors as biomarkers for the early prediction of disease outcome taking dengue infection as an example is reviewed.
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Affiliation(s)
- Agiesh Kumar Balakrishna Pillai
- Central Inter-Disciplinary Research Facility (CIDRF), Sri Balaji Vidyapeeth (Deemed to be University), Puducherry, 607402, India.
| | - Justin Jang Hann Chu
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, 117545, Singapore; Infectious Disease Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore; Collaborative and Translation Unit for HFMD, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, 138673, Singapore
| | - Vignesh Mariappan
- Central Inter-Disciplinary Research Facility (CIDRF), Sri Balaji Vidyapeeth (Deemed to be University), Puducherry, 607402, India
| | - Aashika Raagavi JeanPierre
- Central Inter-Disciplinary Research Facility (CIDRF), Sri Balaji Vidyapeeth (Deemed to be University), Puducherry, 607402, India
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9
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Panwar A, Wangchuk J, Kar M, Lodha R, Medigeshi GR. Dengue virus replication enhances labile zinc pools by modulation of ZIP8. Cell Microbiol 2021; 23:e13395. [PMID: 34619004 PMCID: PMC7612096 DOI: 10.1111/cmi.13395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/20/2021] [Accepted: 10/05/2021] [Indexed: 11/30/2022]
Abstract
Zinc‐dependent viral proteins rely on intracellular zinc homeostasis for successful completion of infectious life‐cycle. Here, we report that the intracellular labile zinc levels were elevated at early stages of dengue virus (DENV) infection in hepatic cells and this increase in free zinc was abolished in cells infected with UV‐inactivated virus or with a DENV replication inhibitor implicating a role for zinc homeostasis in viral RNA replication. This change in free zinc was mediated by zinc transporter, ZIP8, as siRNA‐mediated knockdown of ZIP8 resulted in abrogation of increase in free zinc levels leading to significant reduction in DENV titers suggesting a crucial role for ZIP8 in early stages of DENV replication. Furthermore, elevated free zinc levels correlated with high copy numbers of dengue genome in peripheral blood leukocytes obtained from dengue patients compared to healthy controls suggesting a critical role for zinc homeostasis in dengue infection.
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Affiliation(s)
- Aleksha Panwar
- Clinical and Cellular Virology lab, Infection and Immunology Division, Translational Health Science and Technology Institute, Faridabad, India
| | - Jigme Wangchuk
- Clinical and Cellular Virology lab, Infection and Immunology Division, Translational Health Science and Technology Institute, Faridabad, India
| | - Meenakshi Kar
- Clinical and Cellular Virology lab, Infection and Immunology Division, Translational Health Science and Technology Institute, Faridabad, India
| | - Rakesh Lodha
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Guruprasad R Medigeshi
- Clinical and Cellular Virology lab, Infection and Immunology Division, Translational Health Science and Technology Institute, Faridabad, India
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10
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Khan NA, Kar M, Panwar A, Wangchuk J, Kumar S, Das A, Pandey AK, Lodha R, Medigeshi GR. Oxidative stress specifically inhibits replication of dengue virus. J Gen Virol 2021; 102. [PMID: 33904816 DOI: 10.1099/jgv.0.001596] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Reactive oxygen species (ROS) are chemically active species which are involved in maintaining cellular and signalling processes at physiological concentrations. Therefore, cellular components that regulate redox balance are likely to play a crucial role in viral life-cycle either as promoters of viral replication or with antiviral functions. Zinc is an essential micronutrient associated with anti-oxidative systems and helps in maintaining a balanced cellular redox state. Here, we show that zinc chelation leads to induction of reactive oxygen species (ROS) in epithelial cells and addition of zinc restores ROS levels to basal state. Addition of ROS (H2O2) inhibited dengue virus (DENV) infection in a dose-dependent manner indicating that oxidative stress has adverse effects on DENV infection. ROS affects early stages of DENV replication as observed by quantitation of positive and negative strand viral RNA. We observed that addition of ROS specifically affected viral titres of positive strand RNA viruses. We further demonstrate that ROS specifically altered SEC31A expression at the ER suggesting a role for SEC31A-mediated pathways in the life-cycle of positive strand RNA viruses and provides an opportunity to identify drug targets regulating oxidative stress responses for antiviral development.
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Affiliation(s)
- Naseem Ahmed Khan
- Clinical and Cellular Virology lab, Infection and Immunology, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Meenakshi Kar
- Clinical and Cellular Virology lab, Infection and Immunology, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Aleksha Panwar
- Clinical and Cellular Virology lab, Infection and Immunology, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Jigme Wangchuk
- Clinical and Cellular Virology lab, Infection and Immunology, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Saurabh Kumar
- Clinical and Cellular Virology lab, Infection and Immunology, Translational Health Science and Technology Institute, Faridabad, Haryana, India
| | - Asim Das
- Employees State Insurance Corporation Medical College and Hospital, Faridabad, Haryana, India
| | - Anil Kumar Pandey
- Employees State Insurance Corporation Medical College and Hospital, Faridabad, Haryana, India
| | - Rakesh Lodha
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Guruprasad R Medigeshi
- Clinical and Cellular Virology lab, Infection and Immunology, Translational Health Science and Technology Institute, Faridabad, Haryana, India
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11
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Hottz ED, Quirino-Teixeira AC, Merij LB, Pinheiro MBM, Rozini SV, Bozza FA, Bozza PT. Platelet-leukocyte interactions in the pathogenesis of viral infections. Platelets 2021; 33:200-207. [PMID: 34260328 DOI: 10.1080/09537104.2021.1952179] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Evolving evidence demonstrates that platelets have major roles in viral syndromes through previously unrecognized viral sensing and effector functions. Activated platelets and increased platelet-leukocyte aggregates are observed in clinical and experimental viral infections. The mechanisms and outcomes of platelet-leukocyte interactions depend on the interacting leukocyte as well as on the pathogen and pathological conditions. In this review, we discuss the mechanisms involved in platelet interactions with leukocytes and its functions during viral infections. We focus on the contributions of human platelet-leukocyte interactions to pathophysiological and protective responses during viral infections of major global health relevance, including acquired immunodeficiency syndrome (AIDS), dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS), influenza pneumonia, and COVID-19.
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Affiliation(s)
- Eugenio D Hottz
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil.,Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Anna Cecíllia Quirino-Teixeira
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Laura Botelho Merij
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Mariana Brandi Mendonça Pinheiro
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Stephane Vicente Rozini
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Fernando A Bozza
- Laboratory of Clinical Research in Intensive Care Medicine, National Institute of Infectious Disease Evandro Chagas, Oswaldo Cruz Foundation, Rio de Janeiro , Brazil.,Intensive Care Medicine, D'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil
| | - Patrícia T Bozza
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
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12
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Quirino-Teixeira AC, Andrade FB, Pinheiro MBM, Rozini SV, Hottz ED. Platelets in dengue infection: more than a numbers game. Platelets 2021; 33:176-183. [PMID: 34027810 DOI: 10.1080/09537104.2021.1921722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Dengue virus (DENV) infection is responsible for the development of dengue illness, which can be either asymptomatic, present mild manifestations or evolve to severe dengue. Thrombocytopenia is an important characteristic during DENV infection, being observed both in mild and severe dengue, although the lowest platelet counts are encountered during severe cases. This review gathers information regarding several mechanisms that have been related to alterations in platelet number and function, leading to thrombocytopenia but also platelet-mediated immune and inflammatory response. On this regard, we highlight that the decrease in platelet counts may be due to bone marrow suppression or consumption of platelets at the periphery. We discuss the infection of hematopoietic progenitors and stromal cells as mechanisms involved in bone marrow suppression. Concerning peripheral consumption of platelets, we addressed the direct infection of platelets by DENV, adhesion of platelets to leukocytes and vascular endothelium and platelet clearance mediated by anti-platelet antibodies. We also focused on platelet involvement on the dengue immunity and pathogenesis through translation and secretion of viral and host factors and through platelet-leukocyte aggregates formation. Hence, the present review highlights important findings related to platelet activation and thrombocytopenia during dengue infection, and also exhibits different mechanisms associated with decreased platelet counts.Graphical abstract:Schematic mechanistic representation of platelet-mediated immune responses and thrombocytopenia during dengue infection. (A) DENV-infected platelets secrete cytokines and chemokines and also adhere to activated vascular endothelium. Platelets aggregate with leukocytes, inducing the secretion of NETs and inflammatory mediators by neutrophils and monocytes, respectively. (B) DENV directly infects stromal cells and hematopoietic precursors, including megakaryocytes, which compromises megakaryopoiesis. Both central and peripheric mechanisms contribute to DENV-associated thrombocytopenia.
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Affiliation(s)
- Anna Cecíllia Quirino-Teixeira
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz De Fora, Juiz De Fora, Brazil
| | - Fernanda Brandi Andrade
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz De Fora, Juiz De Fora, Brazil
| | - Mariana Brandi Mendonça Pinheiro
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz De Fora, Juiz De Fora, Brazil
| | - Stephane Vicente Rozini
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz De Fora, Juiz De Fora, Brazil
| | - Eugenio Damaceno Hottz
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz De Fora, Juiz De Fora, Brazil
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13
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Inflammatory signaling in dengue-infected platelets requires translation and secretion of nonstructural protein 1. Blood Adv 2021; 4:2018-2031. [PMID: 32396616 DOI: 10.1182/bloodadvances.2019001169] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 04/06/2020] [Indexed: 12/13/2022] Open
Abstract
Emerging evidence identifies major contributions of platelets to inflammatory amplification in dengue, but the mechanisms of infection-driven platelet activation are not completely understood. Dengue virus nonstructural protein-1 (DENV NS1) is a viral protein secreted by infected cells with recognized roles in dengue pathogenesis, but it remains unknown whether NS1 contributes to the inflammatory phenotype of infected platelets. This study shows that recombinant DENV NS1 activated platelets toward an inflammatory phenotype that partially reproduced DENV infection. NS1 stimulation induced translocation of α-granules and release of stored factors, but not of newly synthesized interleukin-1β (IL-1β). Even though both NS1 and DENV were able to induce pro-IL-1β synthesis, only DENV infection triggered caspase-1 activation and IL-1β release by platelets. A more complete thromboinflammatory phenotype was achieved by synergistic activation of NS1 with classic platelet agonists, enhancing α-granule translocation and inducing thromboxane A2 synthesis (thrombin and platelet-activating factor), or activating caspase-1 for IL-1β processing and secretion (adenosine triphosphate). Also, platelet activation by NS1 partially depended on toll-like receptor-4 (TLR-4), but not TLR-2/6. Finally, the platelets sustained viral genome translation and replication, but did not support the release of viral progeny to the extracellular milieu, characterizing an abortive viral infection. Although DENV infection was not productive, translation of the DENV genome led to NS1 expression and release by platelets, contributing to the activation of infected platelets through an autocrine loop. These data reveal distinct, new mechanisms for platelet activation in dengue, involving DENV genome translation and NS1-induced platelet activation via platelet TLR4.
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14
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Sarker MMR, Khan F, Mohamed IN. Dengue Fever: Therapeutic Potential of Carica papaya L. Leaves. Front Pharmacol 2021; 12:610912. [PMID: 33981215 PMCID: PMC8109180 DOI: 10.3389/fphar.2021.610912] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 03/02/2021] [Indexed: 11/19/2022] Open
Abstract
Dengue, a very widespread mosquito-borne infectious disease caused by Aedes aegypti virus, has been occurring during the monsoons every year. The prevalence and incidence of dengue fever and death due to its complications have been increased drastically in these recent years in Bangladesh, Philippines, Thailand, Brazil, and India. Recently, dengue had spread in an epidemic form in Bangladesh, Thailand, and Philippines. Although the infection affected a large number of people around the world, there is no established specific and effective treatment by synthetic medicines. In this subcontinent, Malaysia could effectively control its incidences and death of patients using alternative medication treatment mainly prepared from Carica papaya L. leaves along with proper care and hospitalization. Papaya leaves, their juice or extract, as well as their different forms of preparation have long been used traditionally for treating dengue fever and its complications to save patients’ lives. Although it is recommended by traditional healers, and the general public use Papaya leaves juice or their other preparations in dengue fever, this treatment option is strictly denied by the physicians offering treatment in hospitals in Bangladesh as they do not believe in the effectiveness of papaya leaves, thus suggesting to patients that they should not use them. In Bangladesh, 1,01,354 dengue patients have been hospitalized, with 179 deaths in the year 2019 according to information from the Institute of Epidemiology, Disease Control, and Research as well as the Directorate General of Health Services of Bangladesh. Most of the patients died because of the falling down of platelets to dangerous levels and hemorrhage or serious bleeding. Therefore, this paper aims to critically review the scientific basis and effectiveness of Carica papaya L. leaves in treating dengue fever based on preclinical and clinical reports. Thrombocytopenia is one of the major conditions that is typical in cases of dengue infection. Besides, the infection and impairment of immunity are concerned with dengue patients. This review summarizes all the scientific reports on Carica papaya L. for its ability on three aspects of dengue: antiviral activities, prevention of thrombocytopenia and improvement of immunity during dengue fever.
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Affiliation(s)
- Md Moklesur Rahman Sarker
- Department of Pharmacy, State University of Bangladesh, Dhanmondi, Dhaka, Bangladesh.,Pharmacology and Toxicology Research Division, Health Med Science Research Limited, Dhaka, Bangladesh
| | - Farzana Khan
- Department of Pharmacy, State University of Bangladesh, Dhanmondi, Dhaka, Bangladesh.,Pharmacology and Toxicology Research Division, Health Med Science Research Limited, Dhaka, Bangladesh
| | - Isa Naina Mohamed
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia (The National University of Malaysia), Cheras, Malaysia
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15
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Dib PRB, Quirino-Teixeira AC, Merij LB, Pinheiro MBM, Rozini SV, Andrade FB, Hottz ED. Innate immune receptors in platelets and platelet-leukocyte interactions. J Leukoc Biol 2020; 108:1157-1182. [PMID: 32779243 DOI: 10.1002/jlb.4mr0620-701r] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 06/11/2020] [Accepted: 06/28/2020] [Indexed: 12/14/2022] Open
Abstract
Platelets are chief cells in hemostasis. Apart from their hemostatic roles, platelets are major inflammatory effector cells that can influence both innate and adaptive immune responses. Activated platelets have thromboinflammatory functions linking hemostatic and immune responses in several physiological and pathological conditions. Among many ways in which platelets exert these functions, platelet expression of pattern recognition receptors (PRRs), including TLR, Nod-like receptor, and C-type lectin receptor families, plays major roles in sensing and responding to pathogen-associated or damage-associated molecular patterns (PAMPs and DAMPs, respectively). In this review, an increasing body of evidence is compiled showing the participation of platelet innate immune receptors, including PRRs, in infectious diseases, sterile inflammation, and cancer. How platelet recognition of endogenous DAMPs participates in sterile inflammatory diseases and thrombosis is discussed. In addition, platelet recognition of both PAMPs and DAMPs initiates platelet-mediated inflammation and vascular thrombosis in infectious diseases, including viral, bacterial, and parasite infections. The study also focuses on the involvement of innate immune receptors in platelet activation during cancer, and their contribution to tumor microenvironment development and metastasis. Finally, how innate immune receptors participate in platelet communication with leukocytes, modulating leukocyte-mediated inflammation and immune functions, is highlighted. These cell communication processes, including platelet-induced release of neutrophil extracellular traps, platelet Ag presentation to T-cells and platelet modulation of monocyte cytokine secretion are discussed in the context of infectious and sterile diseases of major concern in human health, including cardiovascular diseases, dengue, HIV infection, sepsis, and cancer.
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Affiliation(s)
- Paula Ribeiro Braga Dib
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil.,Laboratory of Immunology, Infectious Diseases and Obesity, Department of Parasitology, Microbiology and Immunology, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Anna Cecíllia Quirino-Teixeira
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Laura Botelho Merij
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Mariana Brandi Mendonça Pinheiro
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Stephane Vicente Rozini
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Fernanda Brandi Andrade
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Eugenio Damaceno Hottz
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
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16
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Kar M, Khan NA, Panwar A, Bais SS, Basak S, Goel R, Sopory S, Medigeshi GR. Zinc Chelation Specifically Inhibits Early Stages of Dengue Virus Replication by Activation of NF-κB and Induction of Antiviral Response in Epithelial Cells. Front Immunol 2019; 10:2347. [PMID: 31632411 PMCID: PMC6779808 DOI: 10.3389/fimmu.2019.02347] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 09/17/2019] [Indexed: 12/18/2022] Open
Abstract
Zinc is an essential micronutrient which regulates diverse physiological functions and has been shown to play a crucial role in viral infections. Zinc has a necessary role in the replication of many viruses, however, antiviral action of zinc has also been demonstrated in in vitro infection models most likely through induction of host antiviral responses. Therefore, depending on the host machinery that the virus employs at different stages of infection, zinc may either facilitate, or inhibit virus infection. In this study, we show that zinc plays divergent roles in rotavirus and dengue virus infections in epithelial cells. Dengue virus infection did not perturb the epithelial barrier functions despite the release of virus from the basolateral surface whereas rotavirus infection led to disruption of epithelial junctions. In rotavirus infection, zinc supplementation post-infection did not block barrier disruption suggesting that zinc does not affect rotavirus life-cycle or protects epithelial barriers post-infection suggesting the involvement of cellular pathways in the beneficial effect of zinc supplementation in enteric infections. Zinc depletion by N,N,N',N'-tetrakis(2-pyridinylmethyl)-1,2-ethanediamine (TPEN) inhibited dengue virus and Japanese encephalitis virus (JEV) infection but had no effect on rotavirus. Time-of-addition experiments suggested that zinc chelation affected both early and late stages of dengue virus infectious cycle and zinc chelation abrogated dengue virus RNA replication. We show that transient zinc chelation induces ER stress and antiviral response by activating NF-kappaB leading to induction of interferon signaling. These results suggest that modulation of zinc homeostasis during virus infection could be a component of host antiviral response and altering zinc homeostasis may act as a potent antiviral strategy against flaviviruses.
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Affiliation(s)
- Meenakshi Kar
- Clinical and Cellular Virology Lab, Translational Health Science and Technology Institute, Faridabad, India
| | - Naseem Ahmed Khan
- Clinical and Cellular Virology Lab, Translational Health Science and Technology Institute, Faridabad, India
| | - Aleksha Panwar
- Clinical and Cellular Virology Lab, Translational Health Science and Technology Institute, Faridabad, India
| | - Sachendra S Bais
- Systems Immunology Laboratory, National Institute of Immunology, New Delhi, India
| | - Soumen Basak
- Systems Immunology Laboratory, National Institute of Immunology, New Delhi, India
| | - Renu Goel
- Drug Discovery Research Centre, Translational Health Science and Technology Institute, Faridabad, India
| | - Shailaja Sopory
- Pediatric Biology Centre, Translational Health Science and Technology Institute, Faridabad, India
| | - Guruprasad R Medigeshi
- Clinical and Cellular Virology Lab, Translational Health Science and Technology Institute, Faridabad, India
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17
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Tomo S, Mohan S, Ramachandrappa VS, Samadanam DM, Suresh S, Pillai AB, Tamilarasu K, Ramachandran R, Rajendiran S. Dynamic modulation of DC-SIGN and FcΥR2A receptors expression on platelets in dengue. PLoS One 2018; 13:e0206346. [PMID: 30412591 PMCID: PMC6226166 DOI: 10.1371/journal.pone.0206346] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 10/11/2018] [Indexed: 11/29/2022] Open
Abstract
Platelet activation has been reported to play a major role in inflammatory response and thrombocytopenia during dengue viral infection. Cells expressing FcϒR2Aand DC-SIGN receptors are reported to be involved in dengue virulence. The present study is designed to assess the expression level of these two receptors on platelet surface collected from dengue patients and to study its association in patients with platelet RNA positive for dengue virus. This was an analytical cross-sectional study carried out in JIPMER hospital, Puducherry. Forty-four patients with dengue infection as cases and 44 patients with non dengue acute other febrile illness(OFI) as controls were recruited. Peripheral venous blood was withdrawn on day of admission, day 3 post admission and day of discharge and serological tests for NS1 dengue antigen and anti IgM antibody were analyzed for diagnosis of dengue infection. Platelet rich plasma was assessed for DC SIGN, FcϒR2A levels and platelets separated from dengue patients were subjected to RNA extraction and detection of presence of viral RNA. The study observed a decreased expression of DC-SIGN and FcϒR2A on platelets in dengue patients compared to OFI group on all the time points. Further, cells expressing DC-SIGN and FcϒR2A were found to be decreased on platelets in dengue patients who were positive for NS1 antigen. DC-SIGN and FcϒR2A expression was also found to be notably decreased in patients positive for platelet DENV RNA when compared with patients negative for platelet DENV RNA. Our results suggest that DC-SIGN and FcϒR2A, which are receptors for viral capture and immune mediated clearance respectively, might be down regulated on platelets in patients with dengue infection. The decreased receptor expression diminishes platelet activation and subsequently has protective action on the host from the ongoing conflict between immune system and dengue virus.
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Affiliation(s)
- Sojit Tomo
- Department of Biochemistry, Jawaharlal Institute of Post-graduate Medical Education and Research (JIPMER), Puducherry, India
| | - Sindhujadevi Mohan
- Department of Biochemistry, Jawaharlal Institute of Post-graduate Medical Education and Research (JIPMER), Puducherry, India
| | | | - Daisy Mariya Samadanam
- Department of Biochemistry, Jawaharlal Institute of Post-graduate Medical Education and Research (JIPMER), Puducherry, India
| | - Sevanthy Suresh
- Department of Biochemistry, Jawaharlal Institute of Post-graduate Medical Education and Research (JIPMER), Puducherry, India
| | | | - Kadhiravan Tamilarasu
- Department of Medicine, Jawaharlal Institute of Post-graduate Medical Education and Research (JIPMER), Puducherry, India
| | - Rameshkumar Ramachandran
- Department of Paediatrics, Jawaharlal Institute of Post-graduate Medical Education and Research (JIPMER), Puducherry, India
| | - Soundravally Rajendiran
- Department of Biochemistry, Jawaharlal Institute of Post-graduate Medical Education and Research (JIPMER), Puducherry, India
- * E-mail:
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18
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Barros TADC, Batista DDO, Torrentes de Carvalho A, Costa Faria NRD, Barreto-Vieira DF, Jácome FC, Barth OM, Nogueira RMR, Neves PCDC, Matos DCDS, Leal de Azeredo E, Vieira Damasco P, Cunha RVD, de-Oliveira-Pinto LM. Different aspects of platelet evaluation in dengue: Measurement of circulating mediators, ability to interact with the virus, the degree of activation and quantification of intraplatelet protein content. Virus Res 2018; 260:163-172. [PMID: 30282001 DOI: 10.1016/j.virusres.2018.09.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/06/2018] [Accepted: 09/19/2018] [Indexed: 10/28/2022]
Abstract
Platelets play a role in hemostasis, coagulation, angiogenesis, inflammation and immune response is one of the most affected cells in dengue. Here we describe some aspects of platelets by observing their specific circulating mediators, the ability to interact with the virus and morphological consequences of this interaction, activation markers and intraplatelet protein contents in dengue. We conducted this study using dengue-patients as well as healthy donors. Immunoenzymatic assay, flow cytometry, transmission electron microscopy and intraplatelet proteins expression assays were carried out. Briefly, we found an increase in sCD62L, NO or TBX2 ratio in platelet count, mostly in patients with the worse clinical outcome. After in vitro DENV infection or during natural infection, platelets underwent morphological alteration with increased expression of platelet activation markers, particularly in natural infections. Analysis of intraplatelet protein contents revealed different angiogenic and inflammatory profiles, maintaining or not extracellular matrix integrity between DF and DFWS patients. Thus, platelets are frequently affected by dengue, either by altering their own functionality, as "carrier" of the virus, or as an antiviral and mediator-secreting effector cell. Thus, strategies aimed at recovering platelet amounts in dengue seem to be essential for a better clinical outcome of the patients.
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Affiliation(s)
- Tamiris Azamor da Costa Barros
- Laboratory of Viral Immunology, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil; Laboratory of Immunological Technology, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Fiocruz, Rio de Janeiro, Brazil
| | | | | | | | | | - Fernanda Cunha Jácome
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Ortrud Monika Barth
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | | | - Patrícia Cristina da Costa Neves
- Laboratory of Immunological Technology, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Fiocruz, Rio de Janeiro, Brazil
| | - Denise Cristina de Souza Matos
- Laboratory of Immunological Technology, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Fiocruz, Rio de Janeiro, Brazil
| | | | - Paulo Vieira Damasco
- Rio-Laranjeiras Hospital, Gaffrée Guinle University Hospital (Federal University of the State of Rio de Janeiro), Rio de Janeiro, Brazil Pedro Ernesto University Hospital (University of the State of Rio de Janeiro), Rio de Janeiro, Brazil
| | - Rivaldo Venâncio da Cunha
- Department of Clinical Medicine, Federal University of the Mato Grosso do Sul University Hospital (Universidade Federal de Mato Grosso do Sul), Campo Grande, Brazil
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19
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O'Connor MA, Tisoncik-Go J, Lewis TB, Miller CJ, Bratt D, Moats CR, Edlefsen PT, Smedley J, Klatt NR, Gale M, Fuller DH. Early cellular innate immune responses drive Zika viral persistence and tissue tropism in pigtail macaques. Nat Commun 2018; 9:3371. [PMID: 30135445 PMCID: PMC6105614 DOI: 10.1038/s41467-018-05826-w] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 07/24/2018] [Indexed: 12/22/2022] Open
Abstract
The immunological and virological events that contribute to the establishment of Zika virus (ZIKV) infection in humans are unclear. Here, we show that robust cellular innate immune responses arising early in the blood and tissues in response to ZIKV infection are significantly stronger in males and correlate with increased viral persistence. In particular, early peripheral blood recruitment of plasmacytoid dendritic cells and higher production of monocyte chemoattractant protein (MCP-1) correspond with greater viral persistence and tissue dissemination. We also identify non-classical monocytes as primary in vivo targets of ZIKV infection in the blood and peripheral lymph node. These results demonstrate the potential differences in ZIKV pathogenesis between males and females and a key role for early cellular innate immune responses in the blood in viral dissemination and ZIKV pathogenesis.
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Affiliation(s)
- Megan A O'Connor
- Department of Microbiology, University of Washington, Seattle, 98195, WA, USA
- Washington National Primate Research Center, Seattle, 98121, WA, USA
| | - Jennifer Tisoncik-Go
- Department of Immunology, University of Washington, Seattle, 98109, WA, USA
- Center for Innate Immunity and Immune Disease (CIIID), University of Washington, Seattle, 98109, WA, USA
| | - Thomas B Lewis
- Department of Microbiology, University of Washington, Seattle, 98195, WA, USA
- Washington National Primate Research Center, Seattle, 98121, WA, USA
| | - Charlene J Miller
- Department of Pharmaceutics, University of Washington, Seattle, 98195, WA, USA
- Department of Pediatrics, University of Miami, Miami, 33136, FL, USA
| | - Debra Bratt
- Washington National Primate Research Center, Seattle, 98121, WA, USA
| | - Cassie R Moats
- Washington National Primate Research Center, Seattle, 98121, WA, USA
- Oregon National Primate Research Center, Hillsboro, 97006, OR, USA
| | - Paul T Edlefsen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, 98109, WA, USA
| | - Jeremy Smedley
- Washington National Primate Research Center, Seattle, 98121, WA, USA
- Oregon National Primate Research Center, Hillsboro, 97006, OR, USA
| | - Nichole R Klatt
- Washington National Primate Research Center, Seattle, 98121, WA, USA
- Department of Pharmaceutics, University of Washington, Seattle, 98195, WA, USA
- Department of Pediatrics, University of Miami, Miami, 33136, FL, USA
| | - Michael Gale
- Department of Immunology, University of Washington, Seattle, 98109, WA, USA
- Center for Innate Immunity and Immune Disease (CIIID), University of Washington, Seattle, 98109, WA, USA
| | - Deborah Heydenburg Fuller
- Department of Microbiology, University of Washington, Seattle, 98195, WA, USA.
- Washington National Primate Research Center, Seattle, 98121, WA, USA.
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20
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Seyoum M, Enawgaw B, Melku M. Human blood platelets and viruses: defense mechanism and role in the removal of viral pathogens. Thromb J 2018; 16:16. [PMID: 30026673 PMCID: PMC6048695 DOI: 10.1186/s12959-018-0170-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 04/18/2018] [Indexed: 12/19/2022] Open
Abstract
Platelets are small non-nucleated cell fragments and the second most abundant cell that play crucial role in managing vascular integrity and regulating hemostasis. Recent finding shows, beyond its hemostatic function platelets also play a main role in fighting against pathogen including viruses. With their receptors, platelet interacts with viral pathogen and this interaction between platelets and viral pathogens result in activation of platelets. Activated platelet releases different molecules that have antiviral activity including kinocidins and other platelet microbicidal peptides. In addition, activated platelet has antiviral role by different mechanism including; phagocytosis of viral pathogen, produce reactive oxygen species and interact with and activate other immune cells. In other side, antiplatelet treatments are one of defending mechanism of viral pathogen. This narrative review summarizes what is known regarding the role of human platelets in fighting viral pathogen.
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Affiliation(s)
- Masresha Seyoum
- University of Gondar hospital, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- Department of Hematology & Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Bamlaku Enawgaw
- Department of Hematology & Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Mulugeta Melku
- Department of Hematology & Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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21
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Dengue Virus Induces the Release of sCD40L and Changes in Levels of Membranal CD42b and CD40L Molecules in Human Platelets. Viruses 2018; 10:v10070357. [PMID: 29976871 PMCID: PMC6071282 DOI: 10.3390/v10070357] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/28/2018] [Accepted: 06/30/2018] [Indexed: 02/07/2023] Open
Abstract
Platelets are considered as significant players in innate and adaptive immune responses. The adhesion molecules they express, including P-selectin, CD40L, and CD42b, facilitate interactions with many cellular effectors. Upon interacting with a pathogen, platelets rapidly express and enhance their adhesion molecules, and secrete cytokines and chemokines. A similar phenomenon occurs after exposure of platelets to thrombin, an agonist extensively used for in vitro activation of these cells. It was recently reported that the dengue virus not only interacts with platelets but possibly infects them, which triggers an increased expression of adhesion molecule P-selectin as well as secretion of IL-1β. In the present study, surface molecules of platelets like CD40L, CD42b, CD62P, and MHC class I were evaluated at 4 h of interaction with dengue virus serotype 2 (DENV-2), finding that DENV-2 induced a sharp rise in the membrane expression of all these molecules. At 2 and 4 h of DENV-2 stimulation of platelets, a significantly greater secretion of soluble CD40L (sCD40L) was found (versus basal levels) as well as cytokines such as GM-CSF, IL-6, IL-8, IL-10, and TNF-α. Compared to basal, DENV-2 elicited more than two-fold increase in these cytokines. Compared to the thrombin-induced response, the level generated by DENV-2 was much higher for GM-CSF, IL-6, and TNF-α. All these events induced by DENV end up in conspicuous morphological changes observed in platelets by confocal microscopy and transmission electron microscopy, very different from those elicited by thrombin in a more physiological scenery.
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22
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Hottz ED, Bozza FA, Bozza PT. Platelets in Immune Response to Virus and Immunopathology of Viral Infections. Front Med (Lausanne) 2018; 5:121. [PMID: 29761104 PMCID: PMC5936789 DOI: 10.3389/fmed.2018.00121] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/12/2018] [Indexed: 01/04/2023] Open
Abstract
Platelets are essential effector cells in hemostasis. Aside from their role in coagulation, platelets are now recognized as major inflammatory cells with key roles in the innate and adaptive arms of the immune system. Activated platelets have key thromboinflammatory functions linking coagulation to immune responses in various infections, including in response to virus. Recent studies have revealed that platelets exhibit several pattern recognition receptors (PRR) including those from the toll-like receptor, NOD-like receptor, and C-type lectin receptor family and are first-line sentinels in detecting and responding to pathogens in the vasculature. Here, we review the main mechanisms of platelets interaction with viruses, including their ability to sustain viral infection and replication, their expression of specialized PRR, and activation of thromboinflammatory responses against viruses. Finally, we discuss the role of platelet-derived mediators and platelet interaction with vascular and immune cells in protective and pathophysiologic responses to dengue, influenza, and human immunodeficiency virus 1 infections.
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Affiliation(s)
- Eugenio D Hottz
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.,Departamento de Bioquimica, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil
| | - Fernando A Bozza
- Laboratório de Medicina Intensiva, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.,Instituto D'Or de Pesquisa e Ensino, Rio de Janeiro, Brazil
| | - Patrícia T Bozza
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
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