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Avian Flavivirus Infection of Monocytes/Macrophages by Extensive Subversion of Host Antiviral Innate Immune Responses. J Virol 2019; 93:JVI.00978-19. [PMID: 31462573 DOI: 10.1128/jvi.00978-19] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/19/2019] [Indexed: 12/22/2022] Open
Abstract
Avian Tembusu virus (TMUV) is a newly emerging avian pathogenic flavivirus in China and Southeast Asia with features of rapid spread, an expanding host range, and cross-species transmission. The mechanisms of its infection and pathogenesis remain largely unclear. Here, we investigated the tropism of this arbovirus in peripheral blood mononuclear cells of specific-pathogen-free (SPF) ducks and SPF chickens and identified monocytes/macrophages as the key targets of TMUV infection. In vivo studies in SPF ducks and SPF chickens with monocyte/macrophage clearance demonstrated that the infection of monocytes/macrophages was crucial for viral replication, transmission, and pathogenesis. Further genome-wide transcriptome analyses of TMUV-infected chicken macrophages revealed that host antiviral innate immune barriers were the major targets of TMUV in macrophages. Despite the activation of major pattern recognition receptor signaling, the inductions of alpha interferon (IFN-α) and IFN-β were blocked by TMUV infection on transcription and translation levels, respectively. Meanwhile, TMUV inhibited host redox responses by repressing the transcription of genes encoding NADPH oxidase subunits and promoting Nrf2-mediated antioxidant responses. The recovery of either of the above-mentioned innate immune barriers was sufficient to suppress TMUV infection. Collectively, we identify an essential step of TMUV infection and reveal extensive subversion of host antiviral innate immune responses.IMPORTANCE Mosquito-borne flaviviruses include a group of pathogenic viruses that cause serious diseases in humans and animals, including dengue, West Nile, and Japanese encephalitis viruses. These flaviviruses are zoonotic and use animals, including birds, as amplifying and reservoir hosts. Avian Tembusu virus (TMUV) is an emerging mosquito-borne flavivirus that is pathogenic for many avian species and can infect cells derived from mammals and humans in vitro Although not currently pathogenic for primates, the infection of duck industry workers and the potential risk of TMUV infection in immunocompromised individuals have been highlighted. Thus, the prevention of TMUV in flocks is important for both avian and mammalian health. Our study reveals the escape of TMUV from the first line of the host defense system in the arthropod-borne transmission route of arboviruses, possibly helping to extend our understanding of flavivirus infection in birds and refine the design of anti-TMUV therapeutics.
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52
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Pre- and peri-implantation Zika virus infection impairs fetal development by targeting trophectoderm cells. Nat Commun 2019; 10:4155. [PMID: 31519912 PMCID: PMC6744420 DOI: 10.1038/s41467-019-12063-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 08/19/2019] [Indexed: 12/23/2022] Open
Abstract
Zika virus (ZIKV) infection results in an increased risk of spontaneous abortion and poor intrauterine growth although the underlying mechanisms remain undetermined. Little is known about the impact of ZIKV infection during the earliest stages of pregnancy, at pre- and peri-implantation, because most current ZIKV pregnancy studies have focused on post-implantation stages. Here, we demonstrate that trophectoderm cells of pre-implantation human and mouse embryos can be infected with ZIKV, and propagate virus causing neural progenitor cell death. These findings are corroborated by the dose-dependent nature of ZIKV susceptibility of hESC-derived trophectoderm cells. Single blastocyst RNA-seq reveals key transcriptional changes upon ZIKV infection, including nervous system development, prior to commitment to the neural lineage. The pregnancy rate of mice is >50% lower in pre-implantation infection than infection at E4.5, demonstrating that pre-implantation ZIKV infection leads to miscarriage. Cumulatively, these data elucidate a previously unappreciated association of pre- and peri-implantation ZIKV infection and microcephaly.
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53
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Maness NJ, Schouest B, Singapuri A, Dennis M, Gilbert MH, Bohm RP, Schiro F, Aye PP, Baker K, Van Rompay KKA, Lackner AA, Bonaldo MC, Blair RV, Permar SR, Coffey LL, Panganiban AT, Magnani D. Postnatal Zika virus infection of nonhuman primate infants born to mothers infected with homologous Brazilian Zika virus. Sci Rep 2019; 9:12802. [PMID: 31488856 PMCID: PMC6728326 DOI: 10.1038/s41598-019-49209-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 08/15/2019] [Indexed: 02/07/2023] Open
Abstract
Recent data in a nonhuman primate model showed that infants postnatally infected with Zika virus (ZIKV) were acutely susceptible to high viremia and neurological damage, suggesting the window of vulnerability extends beyond gestation. In this pilot study, we addressed the susceptibility of two infant rhesus macaques born healthy to dams infected with Zika virus during pregnancy. Passively acquired neutralizing antibody titers dropped below detection limits between 2 and 3 months of age, while binding antibodies remained detectable until viral infection at 5 months. Acute serum viremia was comparatively lower than adults infected with the same Brazilian isolate of ZIKV (n = 11 pregnant females, 4 males, and 4 non-pregnant females). Virus was never detected in cerebrospinal fluid nor in neural tissues at necropsy two weeks after infection. However, viral RNA was detected in lymph nodes, confirming some tissue dissemination. Though protection was not absolute and our study lacks an important comparison with postnatally infected infants born to naïve dams, our data suggest infants born healthy to infected mothers may harbor a modest but important level of protection from postnatally acquired ZIKV for several months after birth, an encouraging result given the potentially severe infection outcomes of this population.
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Affiliation(s)
- Nicholas J Maness
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, Louisiana, USA.
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA.
| | - Blake Schouest
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
- Biomedical Sciences Training Program, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Anil Singapuri
- Department of Pathology, Microbiology and Immunology, University of California, Davis, CA, USA
| | - Maria Dennis
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, North Carolina, USA
| | - Margaret H Gilbert
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Rudolf P Bohm
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Faith Schiro
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Pyone P Aye
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Kate Baker
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Koen K A Van Rompay
- Department of Pathology, Microbiology and Immunology, University of California, Davis, CA, USA
- California National Primate Research Center, University of California, Davis, California, USA
| | - Andrew A Lackner
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Myrna C Bonaldo
- Laboratório de Biologia Molecular de Flavivírus, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Robert V Blair
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Sallie R Permar
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, North Carolina, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Lark L Coffey
- Department of Pathology, Microbiology and Immunology, University of California, Davis, CA, USA
| | - Antonito T Panganiban
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, Louisiana, USA
- Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Diogo Magnani
- MassBiologics of the University of Massachusetts Medical School, Boston, Massachusetts, USA
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54
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Olmos-Ortiz A, Flores-Espinosa P, Mancilla-Herrera I, Vega-Sánchez R, Díaz L, Zaga-Clavellina V. Innate Immune Cells and Toll-like Receptor-Dependent Responses at the Maternal-Fetal Interface. Int J Mol Sci 2019; 20:ijms20153654. [PMID: 31357391 PMCID: PMC6695670 DOI: 10.3390/ijms20153654] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/26/2019] [Accepted: 06/28/2019] [Indexed: 12/14/2022] Open
Abstract
During pregnancy, the placenta, the mother and the fetus exploit several mechanisms in order to avoid fetal rejection and to maintain an immunotolerant environment throughout nine months. During this time, immune cells from the fetal and maternal compartments interact to provide an adequate defense in case of an infection and to promote a tolerogenic milieu for the fetus to develop peacefully. Trophoblasts and decidual cells, together with resident natural killer cells, dendritic cells, Hofbauer cells and other macrophages, among other cell types, contribute to the modulation of the uterine environment to sustain a successful pregnancy. In this review, the authors outlined some of the various roles that the innate immune system plays at the maternal-fetal interface. First, the cell populations that are recruited into gestational tissues and their immune mechanisms were examined. In the second part, the Toll-like receptor (TLR)-dependent immune responses at the maternal-fetal interface was summarized, in terms of their specific cytokine/chemokine/antimicrobial peptide expression profiles throughout pregnancy.
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Affiliation(s)
- Andrea Olmos-Ortiz
- Departamento de Inmunobioquímica, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México 11000, Mexico
| | - Pilar Flores-Espinosa
- Departamento de Inmunobioquímica, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México 11000, Mexico
| | - Ismael Mancilla-Herrera
- Departamento de Infectología e Inmunología, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México 11000, Mexico
| | - Rodrigo Vega-Sánchez
- Departamento de Nutrición y Bioprogramación, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México 11000, Mexico
| | - Lorenza Díaz
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México 14080, Mexico
| | - Verónica Zaga-Clavellina
- Departamento de Fisiología y Desarrollo Celular, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México 11000, Mexico.
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55
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Zulu MZ, Martinez FO, Gordon S, Gray CM. The Elusive Role of Placental Macrophages: The Hofbauer Cell. J Innate Immun 2019; 11:447-456. [PMID: 30970346 DOI: 10.1159/000497416] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 01/19/2019] [Indexed: 01/07/2023] Open
Abstract
In this review, we discuss the often overlooked tissue-resident fetal macrophages, Hofbauer cells, which are found within the chorionic villi of the human placenta. Hofbauer cells have been shown to have a phenotype associated with regulatory and anti-inflammatory functions. They are thought to play a crucial role in the regulation of pregnancy and in the maintenance of a homeostatic environment that is crucial for fetal development. Even though the numbers of these macrophages are some of the most abundant immune cells in the human placenta, which are sustained throughout pregnancy, there are very few studies that have identified their origin, their phenotype, and functions and why they are maintained throughout gestation. It is not yet understood how Hofbauer cells may change in function throughout normal pregnancy, and especially in those complicated by maternal gestational diabetes, preeclampsia, and viral infections, such as Zika, cytomegalovirus, and human immunodeficiency virus. We review what is known about the origin of these macrophages and explore how common complications of pregnancy dysregulate these cells leading to adverse birth outcomes in humans. Our synthesis sheds light on areas for human studies that can further define these innate regulatory cells.
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Affiliation(s)
- Michael Z Zulu
- Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Fernando O Martinez
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Siamon Gordon
- Chang Gung University, Graduate Institute of Biomedical Sciences, College of Medicine, Taoyuan City, Taiwan.,Sir William Dunn School of Pathology, University of Oxford, Oxford, United Kingdom
| | - Clive M Gray
- Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa, .,National Health Laboratory Services/Groote Schuur Hospital, Cape Town, South Africa,
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56
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Abstract
Zika virus (ZIKV) infection can result in serious consequences, including severe congenital manifestations, persistent infection in the testes, and neurologic sequelae. After a pandemic emergence, the virus has spread to much of North and South America and has been introduced to many countries outside of ZIKV-endemic areas as infected travelers return to their home countries. Rodent models have been important in gaining a better understanding of the wide range of disease etiologies associated with ZIKV infection and for the initial phase of developing countermeasures to prevent or treat viral infections. We discuss herein the advantages and disadvantages of small-animal models that have been developed to replicate various aspects of disease associated with ZIKV infection.
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Affiliation(s)
- Justin G Julander
- Institute for Antiviral Research, ADVS Department, Utah State University, Logan
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57
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Gregory CJ, Oduyebo T, Brault AC, Brooks JT, Chung KW, Hills S, Kuehnert MJ, Mead P, Meaney-Delman D, Rabe I, Staples E, Petersen LR. Modes of Transmission of Zika Virus. J Infect Dis 2019; 216:S875-S883. [PMID: 29267909 DOI: 10.1093/infdis/jix396] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
For >60 years, Zika virus (ZIKV) has been recognized as an arthropod-borne virus with Aedes species mosquitoes as the primary vector. However in the past 10 years, multiple alternative routes of ZIKV transmission have been identified. We review the available data on vector and non-vector-borne modes of transmission and interventions undertaken, to date, to reduce the risk of human infection through these routes. Although much has been learned during the outbreak in the Americas on the underlying mechanisms and pathogenesis of non-vector-borne ZIKV infections, significant gaps remain in our understanding of the relative incidence of, and risk from, these modes compared to mosquito transmission. Additional research is urgently needed on the risk, pathogenesis, and effectiveness of measures to mitigate non-vector-borne ZIKV transmission.
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Affiliation(s)
- Christopher J Gregory
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Titilope Oduyebo
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Aaron C Brault
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - John T Brooks
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Koo-Whang Chung
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Susan Hills
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Matthew J Kuehnert
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Paul Mead
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Dana Meaney-Delman
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Ingrid Rabe
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Erin Staples
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Lyle R Petersen
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado
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58
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da Silva MHM, Moises RNC, Alves BEB, Pereira HWB, de Paiva AAP, Morais IC, Nascimento YM, Monteiro JD, de Souto JT, Nascimento MSL, de Araújo JMG, da Guedes PMM, Fernandes JV. Innate immune response in patients with acute Zika virus infection. Med Microbiol Immunol 2019; 208:703-714. [PMID: 30879197 DOI: 10.1007/s00430-019-00588-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 02/25/2019] [Indexed: 12/11/2022]
Abstract
Innate immunity receptors (Toll-like receptors/TLRs and RIG-like receptors/RLRs) are important for the initial recognition of Zika virus (ZIKV), modulation of protective immune response, and IFN-α and IFN-β production. Immunological mechanisms involved in protection or pathology during ZIKV infection have not yet been determined. In this study, we evaluated the mRNA expression of innate immune receptors (TLR3, TLR7, TLR8, TLR9, melanoma differentiation-associated protein 5/MDA-5, and retinoic acid inducible gene/RIG-1), its adapter molecules (Myeloid Differentiation Primary Response Gene 88/Myd88, Toll/IL-1 Receptor Domain-Containing Adaptor-Inducing IFN-β/TRIF), and cytokines (IL-6, IL-12, TNF-α, IFN-α, IFN-β, and IFN-γ) in the acute phase of patients infected by ZIKV using real-time PCR in peripheral blood. Patients with acute ZIKV infection had high expression of TLR3, IFN-α, IFN-β, and IFN-γ when compared to healthy controls. In addition, there was a positive correlation between TLR3 expression compared to IFN-α and IFN-β. Moreover, viral load is positively correlated with TLR8, RIG-1, MDA-5, IFN-α, and IFN-β. On the other hand, patients infected by ZIKV showed reduced expression of RIG-1, TLR8, Myd88, and TNF-α molecules, which are also involved in antiviral immunity. Similar expressions of TLR7, TLR9, MDA-5, TRIF, IL-6, and IL-12 were observed between the group of patients infected with ZIKV and control subjects. Our results indicate that acute infection (up to 5 days after the onset of symptoms) by ZIKV in patients induces the high mRNA expression of TLR3 correlated to high expression of IFN-γ, IFN-α, and IFN-β, even though the high viral load is correlated to high expression of TLR8, RIG-1, MDA-5, IFN-α, and IFN-β in ZIKV patients.
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Affiliation(s)
- Marcelo Henrique Matias da Silva
- Graduate Program in Parasitary Biology, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil
| | - Raiza Nara Cunha Moises
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil
| | - Brenda Elen Bizerra Alves
- Graduate Program in Parasitary Biology, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Laboratory of Virology, Institute of Tropical Medicine, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Hannaly Wana Bezerra Pereira
- Graduate Program in Parasitary Biology, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Laboratory of Virology, Institute of Tropical Medicine, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Anne Aline Pereira de Paiva
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Laboratory of Virology, Institute of Tropical Medicine, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Ingryd Câmara Morais
- Laboratory of Virology, Institute of Tropical Medicine, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Yasmim Mesquita Nascimento
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Laboratory of Virology, Institute of Tropical Medicine, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Joelma Dantas Monteiro
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Laboratory of Virology, Institute of Tropical Medicine, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Janeusa Trindade de Souto
- Graduate Program in Parasitary Biology, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil
| | - Manuela Sales Lima Nascimento
- Edmond and Lily Safra International Institute of Neuroscience (ELS-IIN), Santos Dumont Institute, Macaíba, RN, Brazil
| | - Josélio Maria Galvão de Araújo
- Graduate Program in Parasitary Biology, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.,Laboratory of Virology, Institute of Tropical Medicine, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Paulo Marcos Matta da Guedes
- Graduate Program in Parasitary Biology, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil. .,Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.
| | - José Veríssimo Fernandes
- Graduate Program in Parasitary Biology, Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil. .,Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, Rio Grande Do Norte, Brazil.
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59
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Lee JK, Shin OS. Advances in Zika Virus⁻Host Cell Interaction: Current Knowledge and Future Perspectives. Int J Mol Sci 2019; 20:ijms20051101. [PMID: 30836648 PMCID: PMC6429326 DOI: 10.3390/ijms20051101] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 02/01/2019] [Accepted: 02/12/2019] [Indexed: 12/12/2022] Open
Abstract
Emerging mosquito-transmitted RNA viruses, such as Zika virus (ZIKV) and Chikungunya represent human pathogens of an immense global health problem. In particular, ZIKV has emerged explosively since 2007 to cause a series of epidemics in the South Pacific and most recently in the Americas. Although typical ZIKV infections are asymptomatic, ZIKV infection during pregnancy is increasingly associated with microcephaly and other fetal developmental abnormalities. In the last few years, genomic and molecular investigations have established a remarkable progress on the pathogenic mechanisms of ZIKV infection using in vitro and in vivo models. Here, we highlight recent advances in ZIKV-host cell interaction studies, including cellular targets of ZIKV, ZIKV-mediated cell death mechanisms, host cell restriction factors that limit ZIKV replication, and immune evasion mechanisms utilized by ZIKV. Understanding of the mechanisms of ZIKV⁻host interaction at the cellular level will contribute crucial insights into the development of ZIKV therapeutics and vaccines.
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Affiliation(s)
- Jae Kyung Lee
- Department of Biomedical Sciences, College of Medicine, Korea University Guro Hospital, Seoul 08308, Korea.
| | - Ok Sarah Shin
- Department of Biomedical Sciences, College of Medicine, Korea University Guro Hospital, Seoul 08308, Korea.
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60
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Human T cell leukemia virus type 1 and Zika virus: tale of two reemerging viruses with neuropathological sequelae of public health concern. J Neurovirol 2019; 25:289-300. [PMID: 30693421 DOI: 10.1007/s13365-019-00720-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/16/2018] [Accepted: 01/03/2019] [Indexed: 01/17/2023]
Abstract
Human T cell leukemia virus type 1 (HTLV-1) and Zika virus (ZIKV) have been considered neglected viruses of low public health concern until recently when incidences of HTLV-1 and ZIKV were observed to be linked to serious immune-related disease and neurological complications. This review will discuss the epidemiology, genomic evolution, virus-host interactions, virulence factors, neuropathological sequelae, and current perspectives of these reemerging viruses. There are no FDA-approved therapeutics or vaccines against these viruses, and as such, it is important for clinical trials to focus on developing vaccines that can induce cell-mediated immune response to confer long-term protective immunity. Furthermore, attention should be paid to reducing the transmission of these viruses through unprotected sex, infected blood during sharing of contaminated needles, donated blood and organs, and vertical transmission from mother to baby via breastfeeding. There is an urgent need to re-evaluate repurposing current antiviral therapies as well as developing novel antiviral agents with enhanced efficacy due to the high morbidity rate associated with these two reemerging chronic viral diseases.
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61
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Pérez-Padilla J, Paz-Bailey G, Meaney-Delman D, Doyle K, Gary J, Rodriguez DM, Bhatnagar J, Pérez-Rodriguez NM, Montalvo S, Alvarado L, Sharp TM. Persistent Zika Virus Infection Associated with Early Fetal Demise: A Case Report. ACTA ACUST UNITED AC 2019; 9:698-706. [PMID: 31799062 PMCID: PMC6889876 DOI: 10.4236/ojog.2019.95069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background: Infection with Zika virus (ZIKV) during pregnancy is known to cause birth defects and could also be linked to pregnancy loss. Case: A pregnant woman in Puerto Rico contracted ZIKV at 16 weeks gestation. ZIKV RNA persisted in serum from her initial test at 16 weeks through 24 weeks gestation, when fetal demise occurred, and was detected in placental tissue. Conclusion: Prolonged detection of ZIKV RNA in maternal serum was associated with ZIKV RNA detection in the placenta of a patient who experienced fetal demise. While detection of placenta ZIKV RNA does not establish that ZIKV conclusively caused the demise, these findings support emerging evidence that the placenta may serve as a reservoir for ZIKV, which may be associated with prolonged detection of ZIKV RNA in serum.
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Affiliation(s)
- Janice Pérez-Padilla
- Centers for Disease Control and Prevention (CDC), Dengue Branch, San Juan, Puerto Rico
| | - Gabriela Paz-Bailey
- Centers for Disease Control and Prevention (CDC), Dengue Branch, San Juan, Puerto Rico
| | - Dana Meaney-Delman
- CDC, National Center for Emerging and Zoonotic Infectious Diseases, Atlanta, GA, USA
| | - Kate Doyle
- CDC, Division of HIV/AIDS Prevention, Atlanta, GA, USA
| | - Joy Gary
- CDC, Infectious Disease Pathology Branch, Atlanta, GA, USA
| | - Dania M Rodriguez
- Centers for Disease Control and Prevention (CDC), Dengue Branch, San Juan, Puerto Rico
| | - Julu Bhatnagar
- CDC, Infectious Disease Pathology Branch, Atlanta, GA, USA
| | | | - Sara Montalvo
- Ponce Health Sciences University/Saint Luke's Episcopal Hospital, Ponce, Puerto Rico
| | - Luisa Alvarado
- Ponce Health Sciences University/Saint Luke's Episcopal Hospital, Ponce, Puerto Rico
| | - Tyler M Sharp
- Centers for Disease Control and Prevention (CDC), Dengue Branch, San Juan, Puerto Rico
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62
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Rocha RF, Del Sarto JL, Marques RE, Costa VV, Teixeira MM. Host target-based approaches against arboviral diseases. Biol Chem 2018; 399:203-217. [PMID: 29145171 DOI: 10.1515/hsz-2017-0236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 10/16/2017] [Indexed: 12/20/2022]
Abstract
In the 20th century, socioeconomic and environmental changes facilitated the reintroduction of mosquitoes in developing cities, resulting in the reinsertion of mosquito-borne viral diseases and the dispersal of their causative agents on a worldwide scale. Recurrent outbreaks of arboviral diseases are being reported, even in regions without a previous history of arboviral disease transmission. Of note, arboviral infections represented approximately 30% of all emerging vector-borne diseases in the last decade. Therapeutic strategies against infectious viral diseases include the use of different classes of molecules that act directly on the pathogen and/or act by optimizing the host immune response. Drugs targeting the virus usually provide amelioration of symptoms by suppressing and controlling the infection. However, it is limited by the short-window of effectiveness, ineffectiveness against latent viruses, development of drug-resistant mutants and toxic side effects. Disease may also be a consequence of an excessive, uncontrolled or misplaced inflammatory response, treatments that interfere in host immune response are interesting options and can be used isolated or in combination with virus-targeted therapies. The use of host-targeted therapies requires specific knowledge regarding host immune patterns that may trigger dengue virus (DENV), chikungunya virus (CHIKV) or Zika virus (ZIKV) disease.
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Affiliation(s)
- Rebeca Froes Rocha
- Departament of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil.,Research Center for Drug Development, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Juliana Lemos Del Sarto
- Departament of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil.,Research Center for Drug Development, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Rafael Elias Marques
- Centro Nacional de Pesquisa em energia e materiais - CNPEM, Brazilian Biosciences National Laboratory, LNBio, Campinas 13083-970, São Paulo, Brazil
| | - Vivian Vasconcelos Costa
- Research Center for Drug Development, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil.,Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Mauro Martins Teixeira
- Departament of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil.,Research Center for Drug Development, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
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63
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Reyes L, Golos TG. Hofbauer Cells: Their Role in Healthy and Complicated Pregnancy. Front Immunol 2018; 9:2628. [PMID: 30498493 PMCID: PMC6249321 DOI: 10.3389/fimmu.2018.02628] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/25/2018] [Indexed: 12/17/2022] Open
Abstract
Hofbauer cells are placental villous macrophages of fetal origin that are present throughout pregnancy. Although Hofbauer cell populations are antigenically and morphologically heterogeneous, their epigenetic, antigenic, and functional profiles most closely resemble alternatively activated macrophages or what are referred to as M2a, M2b, M2c, and M2d polarity subtypes. Consistent with an M2-like profile, these cells play an important role in placental development including vasculogenesis and angiogenesis. During placental inflammation Hofbauer cells may produce pro-inflammatory cytokines or mediators that damage the villous cell barrier, and induce fibrotic responses within the villi as a continuum of chronic inflammation. However, to date, there is no evidence that Hofbauer cells become classically activated or adopt an M1 polarity phenotype that is able to kill microbes. To the contrary, their predominant M2 like qualities may be why these cells are ineffective in controlling most TORCH infections. Moreover, Hofbauer cells may contribute to vertical transmission of various pathogens to the fetus since they can harbor live virus and serve as reservoirs within the placenta. The goal of this review is to summarize what is currently known about the role of Hofbauer cells in normal and complicated pregnancies that involve immunologic disorders, inflammation, and/or infection.
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Affiliation(s)
- Leticia Reyes
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, United States
| | - Thaddeus G Golos
- Department of Comparative Biosciences, Wisconsin National Primate Research Center, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, United States
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64
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de Noronha L, Zanluca C, Burger M, Suzukawa AA, Azevedo M, Rebutini PZ, Novadzki IM, Tanabe LS, Presibella MM, Duarte Dos Santos CN. Zika Virus Infection at Different Pregnancy Stages: Anatomopathological Findings, Target Cells and Viral Persistence in Placental Tissues. Front Microbiol 2018; 9:2266. [PMID: 30337910 PMCID: PMC6180237 DOI: 10.3389/fmicb.2018.02266] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 09/05/2018] [Indexed: 12/01/2022] Open
Abstract
Zika virus (ZIKV) infection in humans has been associated with congenital malformations and other neurological disorders, such as Guillain-Barré syndrome. The mechanism(s) of ZIKV intrauterine transmission, the cell types involved, the most vulnerable period of pregnancy for severe outcomes from infection and other physiopathological aspects are not completely elucidated. In this study, we analyzed placental samples obtained at the time of delivery from a group of 24 women diagnosed with ZIKV infection during the first, second or third trimesters of pregnancy. Villous immaturity was the main histological finding in the placental tissues, although placentas without alterations were also frequently observed. Significant enhancement of the number of syncytial sprouts was observed in the placentas of women infected during the third trimester, indicating the development of placental abnormalities after ZIKV infection. Hyperplasia of Hofbauer cells (HCs) was also observed in these third-trimester placental tissues, and remarkably, HCs were the only ZIKV-positive fetal cells found in the placentas studied that persisted until birth, as revealed by immunohistochemical (IHC) analysis. Thirty-three percent of women infected during pregnancy delivered infants with congenital abnormalities, although no pattern correlating the gestational stage at infection, the IHC positivity of HCs in placental tissues and the presence of congenital malformations at birth was observed. Placental tissue analysis enabled us to confirm maternal ZIKV infection in cases where serum from the acute infection phase was not available, which reinforces the importance of this technique in identifying possible causal factors of birth defects. The results we observed in the samples from naturally infected pregnant women may contribute to the understanding of some aspects of the pathophysiology of ZIKV.
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Affiliation(s)
- Lucia de Noronha
- Laboratório de Patologia Experimental, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Camila Zanluca
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, Brazil
| | - Marion Burger
- Secretaria da Saúde do Estado do Paraná, Curitiba, Brazil
| | - Andreia Akemi Suzukawa
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, Brazil
| | - Marina Azevedo
- Laboratório de Patologia Experimental, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Patricia Z Rebutini
- Laboratório de Patologia Experimental, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
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Beaver JT, Lelutiu N, Habib R, Skountzou I. Evolution of Two Major Zika Virus Lineages: Implications for Pathology, Immune Response, and Vaccine Development. Front Immunol 2018; 9:1640. [PMID: 30072993 PMCID: PMC6058022 DOI: 10.3389/fimmu.2018.01640] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/03/2018] [Indexed: 12/13/2022] Open
Abstract
Zika virus (ZIKV) became a public health emergency of global concern in 2015 due to its rapid expansion from French Polynesia to Brazil, spreading quickly throughout the Americas. Its unexpected correlation to neurological impairments and defects, now known as congenital Zika syndrome, brought on an urgency to characterize the pathology and develop safe, effective vaccines. ZIKV genetic analyses have identified two major lineages, Asian and African, which have undergone substantial changes during the past 50 years. Although ZIKV infections have been circulating throughout Africa and Asia for the later part of the 20th century, the symptoms were mild and not associated with serious pathology until now. ZIKV evolution also took the form of novel modes of transmission, including maternal-fetal transmission, sexual transmission, and transmission through the eye. The African and Asian lineages have demonstrated differential pathogenesis and molecular responses in vitro and in vivo. The limited number of human infections prior to the 21st century restricted ZIKV research to in vitro studies, but current animal studies utilize mice deficient in type I interferon (IFN) signaling in order to invoke enhanced viral pathogenesis. This review examines ZIKV strain differences from an evolutionary perspective, discussing how these differentially impact pathogenesis via host immune responses that modulate IFN signaling, and how these differential effects dictate the future of ZIKV vaccine candidates.
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Affiliation(s)
| | | | | | - Ioanna Skountzou
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
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66
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da Silva LRC. Zika Virus Trafficking and Interactions in the Human Male Reproductive Tract. Pathogens 2018; 7:E51. [PMID: 29751638 PMCID: PMC6027493 DOI: 10.3390/pathogens7020051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 05/01/2018] [Accepted: 05/02/2018] [Indexed: 12/28/2022] Open
Abstract
Sexual transmission of Zika virus (ZIKV) is a matter of great concern. Infectious viral particles can be shed in semen for as long as six months after infection and can be transferred to male and female sexual partners during unprotected sexual intercourse. The virus can be found inside spermatozoa and could be directly transferred to the oocyte during fertilization. Sexual transmission of ZIKV can contribute to the rise in number of infected individuals in endemic areas as well as in countries where the mosquito vector does not thrive. There is also the possibility, as has been demonstrated in mouse models, that the vaginal deposition of ZIKV particles present in semen could lead to congenital syndrome. In this paper, we review the current literature to understand ZIKV trafficking from the bloodstream to the human male reproductive tract and viral interactions with host cells in interstitial spaces, tubule walls, annexed glands and semen. We hope to highlight gaps to be filled by future research and potential routes for vaccine and antiviral development.
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67
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Gomez-Lopez N, Romero R, Xu Y, Miller D, Leng Y, Panaitescu B, Silva P, Faro J, Alhousseini A, Gill N, Hassan SS, Hsu CD. The immunophenotype of amniotic fluid leukocytes in normal and complicated pregnancies. Am J Reprod Immunol 2018; 79:e12827. [PMID: 29500850 DOI: 10.1111/aji.12827] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 01/25/2018] [Indexed: 12/13/2022] Open
Abstract
PROBLEM The immune cellular composition of amniotic fluid is poorly understood. Herein, we determined: 1) the immunophenotype of amniotic fluid immune cells during the second and third trimester in the absence of intra-amniotic infection/inflammation; 2) whether amniotic fluid T cells and ILCs display different phenotypical characteristics to that of peripheral cells; and 3) whether the amniotic fluid immune cells are altered in women with intra-amniotic infection/inflammation. METHOD OF STUDY Amniotic fluid samples (n = 57) were collected from 15 to 40 weeks of gestation in women without intra-amniotic infection/inflammation. Samples from women with intra-amniotic infection/inflammation were also included (n = 9). Peripheral blood mononuclear cells from healthy adults were used as controls (n = 3). Immunophenotyping was performed using flow cytometry. RESULTS In the absence of intra-amniotic infection/inflammation, the amniotic fluid contained several immune cell populations between 15 and 40 weeks. Among these immune cells: (i) T cells and ILCs were greater than B cells and natural killer (NK) cells between 15 and 30 weeks; (ii) T cells were most abundant between 15 and 30 weeks; (iii) ILCs were most abundant between 15 and 20 weeks; (iv) B cells were scarce between 15 and 20 weeks; yet, they increased and were constant after 20 weeks; (v) NK cells were greater between 15 and 30 weeks than at term; (vi) ILCs expressed high levels of RORγt, CD161, and CD103 (ie, group 3 ILCs); (vii) T cells expressed high levels of RORγt; (viii) neutrophils increased as gestation progressed; and (ix) monocytes/macrophages emerged after 20 weeks and remained constant until term. All of the amniotic fluid immune cells, except ILCs, were increased in the presence of intra-amniotic infection/inflammation. CONCLUSION The amniotic fluid harbors a diverse immune cellular composition during normal and complicated pregnancies.
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Affiliation(s)
- Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Immunology, Microbiology and Biochemistry, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI, USA.,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA.,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Yi Xu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Derek Miller
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Immunology, Microbiology and Biochemistry, Wayne State University School of Medicine, Detroit, MI, USA
| | - Yaozhu Leng
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Bogdan Panaitescu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Pablo Silva
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI, USA.,Division of Obstetrics and Gynecology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jonathan Faro
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ali Alhousseini
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Navleen Gill
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Sonia S Hassan
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Physiology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Chaur-Dong Hsu
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
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68
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Zanluca C, de Noronha L, Duarte Dos Santos CN. Maternal-fetal transmission of the zika virus: An intriguing interplay. Tissue Barriers 2018; 6:e1402143. [PMID: 29370577 DOI: 10.1080/21688370.2017.1402143] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
In this review, we give an overview of aspects related to the congenital transmission of the Zika virus (ZIKV). Although we acknowledge that important advances in research on ZIKV pathogenesis have come from studies using animal models, particularly non-human primates, this review emphasizes studies using ex-vivo human cells and tissues as well as natural infections in pregnant women. The possible routes used by ZIKV to cross or breach the placental barrier and infect the fetal central nervous system are presented. Understanding the viral infection biology and ZIKV pathogenesis during pregnancy may guide the design of affordable antiviral strategies to benefit pregnant women in areas at risk.
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Affiliation(s)
- Camila Zanluca
- a Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR , Curitiba , PR , Brazil
| | - Lucia de Noronha
- b Laboratório de Patologia Experimental, Pontifícia Universidade Católica do Paraná , Curitiba , PR , Brazil
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Jagger BW, Miner JJ, Cao B, Arora N, Smith AM, Kovacs A, Mysorekar IU, Coyne CB, Diamond MS. Gestational Stage and IFN-λ Signaling Regulate ZIKV Infection In Utero. Cell Host Microbe 2017; 22:366-376.e3. [PMID: 28910635 PMCID: PMC5647680 DOI: 10.1016/j.chom.2017.08.012] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 07/25/2017] [Accepted: 08/21/2017] [Indexed: 02/05/2023]
Abstract
Although Zika virus (ZIKV)-induced congenital disease occurs more frequently during early stages of pregnancy, its basis remains undefined. Using established type I interferon (IFN)-deficient mouse models of ZIKV transmission in utero, we found that the placenta and fetus were more susceptible to ZIKV infection at earlier gestational stages. Whereas ZIKV infection at embryonic day 6 (E6) resulted in placental insufficiency and fetal demise, infections at midstage (E9) resulted in reduced cranial dimensions, and infection later in pregnancy (E12) caused no apparent fetal disease. In addition, we found that fetuses lacking type III IFN-λ signaling had increased ZIKV replication in the placenta and fetus when infected at E12, and reciprocally, treatment of pregnant mice with IFN-λ2 reduced ZIKV infection. IFN-λ treatment analogously diminished ZIKV infection in human midgestation fetal- and maternal-derived tissue explants. Our data establish a model of gestational stage dependence of ZIKV pathogenesis and IFN-λ-mediated immunity at the maternal-fetal interface.
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Affiliation(s)
- Brett W Jagger
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Jonathan J Miner
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Bin Cao
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Nitin Arora
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA; Center for Microbial Pathogenesis, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA 15224, USA
| | - Amber M Smith
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Attila Kovacs
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA; Center for Cardiovascular Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Indira U Mysorekar
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Carolyn B Coyne
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA; Center for Microbial Pathogenesis, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA 15224, USA
| | - Michael S Diamond
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA; Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO 63110, USA.
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Weaver SC, Charlier C, Vasilakis N, Lecuit M. Zika, Chikungunya, and Other Emerging Vector-Borne Viral Diseases. Annu Rev Med 2017; 69:395-408. [PMID: 28846489 DOI: 10.1146/annurev-med-050715-105122] [Citation(s) in RCA: 252] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Arthropod-borne viruses (arboviruses) have a long history of emerging to infect humans, but during recent decades, they have been spreading more widely and affecting larger populations. This is due to several factors, including increased air travel and uncontrolled mosquito vector populations. Emergence can involve simple spillover from enzootic (wildlife) cycles, as in the case of West Nile virus accompanying geographic expansion into the Americas; secondary amplification in domesticated animals, as seen with Japanese encephalitis, Venezuelan equine encephalitis, and Rift Valley fever viruses; and urbanization, in which humans become the amplification hosts and peridomestic mosquitoes, mainly Aedes aegypti, mediate human-to-human transmission. Dengue, yellow fever, chikungunya, and Zika viruses have undergone such urban emergence. We focus mainly on the latter two, which are recent arrivals in the Western Hemisphere. We also discuss a few other viruses with the potential to emerge through all of these mechanisms.
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Affiliation(s)
- Scott C Weaver
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas 77555, USA; , .,Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas 77555, USA.,Department of Pathology, University of Texas Medical Branch, Galveston, Texas 77555, USA
| | - Caroline Charlier
- Institut Pasteur, Biology of Infection Unit, INSERM Unité 1117, 75006 Paris, France; , .,Paris Descartes University, Sorbonne Paris Cité, 75006 Paris, France.,Division of Infectious Diseases and Tropical Medicine, Necker-Enfants Malades University Hospital, Assistance Publique-Hôpitaux de Paris, 75015 Paris, France.,Institut Imagine, 75015 Paris, France
| | - Nikos Vasilakis
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas 77555, USA; , .,Department of Pathology, University of Texas Medical Branch, Galveston, Texas 77555, USA
| | - Marc Lecuit
- Institut Pasteur, Biology of Infection Unit, INSERM Unité 1117, 75006 Paris, France; , .,Paris Descartes University, Sorbonne Paris Cité, 75006 Paris, France.,Division of Infectious Diseases and Tropical Medicine, Necker-Enfants Malades University Hospital, Assistance Publique-Hôpitaux de Paris, 75015 Paris, France.,Institut Imagine, 75015 Paris, France
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71
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Charlier C, Beaudoin MC, Couderc T, Lortholary O, Lecuit M. Arboviruses and pregnancy: maternal, fetal, and neonatal effects. THE LANCET CHILD & ADOLESCENT HEALTH 2017; 1:134-146. [PMID: 30169203 DOI: 10.1016/s2352-4642(17)30021-4] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/27/2017] [Accepted: 06/27/2017] [Indexed: 12/19/2022]
Abstract
Arboviruses are an expanding public health threat, with pregnant women facing unique complications from arbovirus infections. These infections, such as dengue and Crimean-Congo haemorrhagic fever, can be more severe in pregnant women than in the general population. Vertical transmission is reported for many arboviruses and can severely affect pregnancy outcome. Indeed, arboviruses-particularly flaviviruses and alphaviruses-are associated with increased risks of fetal loss and premature birth. Arboviruses can be teratogenic, as is the case for Zika virus and Venezuelan equine encephalitis virus. Finally, intrapartum transmission can result in severe neonatal infections, as is true for chikungunya virus. Although the global burden of arboviruses is well recognised, few studies have provided data on arbovirus infection specifically in the context of maternal and child health. Epidemiological and clinical studies are therefore needed to better assess the burden of arbovirus infections during pregnancy and to improve the prevention and clinical management of these viral infections. In this Review, we analyse the information available and identify gaps in knowledge that require further assessment.
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Affiliation(s)
- Caroline Charlier
- Institut Pasteur, Biology of Infection Unit, Paris, France; Inserm U1117, Paris, France; Paris-Descartes University, Sorbonne Paris Cité, Centre d'Infectiologie Necker-Pasteur, Necker-Enfants Malades University Hospital, Institut Imagine, Assistance Publique-Hôpitaux de Paris, Paris, France.
| | - Marie-Claude Beaudoin
- Paris-Descartes University, Sorbonne Paris Cité, Centre d'Infectiologie Necker-Pasteur, Necker-Enfants Malades University Hospital, Institut Imagine, Assistance Publique-Hôpitaux de Paris, Paris, France; Division of Medical Microbiology and Infectious Diseases, Laval University and CHU de Québec-Université Laval, Quebec City, QC, Canada
| | - Thérèse Couderc
- Institut Pasteur, Biology of Infection Unit, Paris, France; Inserm U1117, Paris, France
| | - Olivier Lortholary
- Paris-Descartes University, Sorbonne Paris Cité, Centre d'Infectiologie Necker-Pasteur, Necker-Enfants Malades University Hospital, Institut Imagine, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Marc Lecuit
- Institut Pasteur, Biology of Infection Unit, Paris, France; Inserm U1117, Paris, France; Paris-Descartes University, Sorbonne Paris Cité, Centre d'Infectiologie Necker-Pasteur, Necker-Enfants Malades University Hospital, Institut Imagine, Assistance Publique-Hôpitaux de Paris, Paris, France.
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72
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McCracken MK, Gromowski GD, Friberg HL, Lin X, Abbink P, De La Barrera R, Eckles KH, Garver LS, Boyd M, Jetton D, Barouch DH, Wise MC, Lewis BS, Currier JR, Modjarrad K, Milazzo M, Liu M, Mullins AB, Putnak JR, Michael NL, Jarman RG, Thomas SJ. Impact of prior flavivirus immunity on Zika virus infection in rhesus macaques. PLoS Pathog 2017; 13:e1006487. [PMID: 28771605 PMCID: PMC5542404 DOI: 10.1371/journal.ppat.1006487] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 06/21/2017] [Indexed: 11/19/2022] Open
Abstract
Studies have demonstrated cross-reactivity of anti-dengue virus (DENV) antibodies in human sera against Zika virus (ZIKV), promoting increased ZIKV infection in vitro. However, the correlation between in vitro and in vivo findings is not well characterized. Thus, we evaluated the impact of heterotypic flavivirus immunity on ZIKV titers in biofluids of rhesus macaques. Animals previously infected (≥420 days) with DENV2, DENV4, or yellow fever virus were compared to flavivirus-naïve animals following infection with a Brazilian ZIKV strain. Sera from DENV-immune macaques demonstrated cross-reactivity with ZIKV by antibody-binding and neutralization assays prior to ZIKV infection, and promoted increased ZIKV infection in cell culture assays. Despite these findings, no significant differences between flavivirus-naïve and immune animals were observed in viral titers, neutralizing antibody levels, or immune cell kinetics following ZIKV infection. These results indicate that prior infection with heterologous flaviviruses neither conferred protection nor increased observed ZIKV titers in this non-human primate ZIKV infection model.
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Affiliation(s)
- Michael K. McCracken
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Gregory D. Gromowski
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Heather L. Friberg
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Xiaoxu Lin
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Peter Abbink
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Rafael De La Barrera
- Pilot Bioproduction Facility, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Kenneth H. Eckles
- Pilot Bioproduction Facility, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Lindsey S. Garver
- Entomology Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Michael Boyd
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - David Jetton
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Dan H. Barouch
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Matthew C. Wise
- Veterinary Services Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Bridget S. Lewis
- Veterinary Services Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Jeffrey R. Currier
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Kayvon Modjarrad
- Henry M. Jackson Foundation, Bethesda, Maryland, United States of America
- Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Mark Milazzo
- Henry M. Jackson Foundation, Bethesda, Maryland, United States of America
- Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Michelle Liu
- Henry M. Jackson Foundation, Bethesda, Maryland, United States of America
- Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Anna B. Mullins
- Veterinary Services Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - J. Robert Putnak
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Nelson L. Michael
- Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Richard G. Jarman
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
- * E-mail:
| | - Stephen J. Thomas
- Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
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Aliota MT, Bassit L, Bradrick SS, Cox B, Garcia-Blanco MA, Gavegnano C, Friedrich TC, Golos TG, Griffin DE, Haddow AD, Kallas EG, Kitron U, Lecuit M, Magnani DM, Marrs C, Mercer N, McSweegan E, Ng LFP, O'Connor DH, Osorio JE, Ribeiro GS, Ricciardi M, Rossi SL, Saade G, Schinazi RF, Schott-Lerner GO, Shan C, Shi PY, Watkins DI, Vasilakis N, Weaver SC. Zika in the Americas, year 2: What have we learned? What gaps remain? A report from the Global Virus Network. Antiviral Res 2017; 144:223-246. [PMID: 28595824 PMCID: PMC5920658 DOI: 10.1016/j.antiviral.2017.06.001] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 06/01/2017] [Indexed: 12/25/2022]
Abstract
In response to the outbreak of Zika virus (ZIKV) infection in the Western Hemisphere and the recognition of a causal association with fetal malformations, the Global Virus Network (GVN) assembled an international taskforce of virologists to promote basic research, recommend public health measures and encourage the rapid development of vaccines, antiviral therapies and new diagnostic tests. In this article, taskforce members and other experts review what has been learned about ZIKV-induced disease in humans, its modes of transmission and the cause and nature of associated congenital manifestations. After describing the make-up of the taskforce, we summarize the emergence of ZIKV in the Americas, Africa and Asia, its spread by mosquitoes, and current control measures. We then review the spectrum of primary ZIKV-induced disease in adults and children, sites of persistent infection and sexual transmission, then examine what has been learned about maternal-fetal transmission and the congenital Zika syndrome, including knowledge obtained from studies in laboratory animals. Subsequent sections focus on vaccine development, antiviral therapeutics and new diagnostic tests. After reviewing current understanding of the mechanisms of emergence of Zika virus, we consider the likely future of the pandemic.
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Affiliation(s)
- Matthew T Aliota
- Department of Pathobiological Sciences, University of Wisconsin-Madison, USA
| | - Leda Bassit
- Center for AIDS Research, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Shelton S Bradrick
- Department of Biochemistry and Molecular Biology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Bryan Cox
- Center for AIDS Research, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Mariano A Garcia-Blanco
- Department of Biochemistry and Molecular Biology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Christina Gavegnano
- Center for AIDS Research, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Thomas C Friedrich
- Department of Pathobiological Sciences, University of Wisconsin-Madison, USA; Wisconsin National Primate Research Center, University of Wisconsin-Madison, USA
| | - Thaddeus G Golos
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, USA; Department of Comparative Biosciences, University of Wisconsin-Madison, USA; Department of Obstetrics and Gynecology, University of Wisconsin-Madison, USA
| | - Diane E Griffin
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA; W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Andrew D Haddow
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA; Virology Division, United States Army Medical Research Institute of Infectious Diseases, Ft. Detrick, MD, 21702, USA
| | - Esper G Kallas
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA; Division of Clinical Immunology and Allergy, School of Medicine, University of São Paulo, Brazil
| | - Uriel Kitron
- Department of Environmental Sciences, Emory University, Atlanta, GA, USA
| | - Marc Lecuit
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA; Institut Pasteur, Biology of Infection Unit and INSERM Unit 1117, France; Paris Descartes University, Sorbonne Paris Cité, Division of Infectious Diseases and Tropical Medicine, Necker- Enfants Malades University Hospital, Institut Imagine, Paris, France
| | - Diogo M Magnani
- Department of Pathology, University of Miami, Miami, FL, USA
| | - Caroline Marrs
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA
| | - Natalia Mercer
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA
| | | | - Lisa F P Ng
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA; Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - David H O'Connor
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, USA; Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, USA
| | - Jorge E Osorio
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA; Department of Pathobiological Sciences, University of Wisconsin-Madison, USA
| | - Guilherme S Ribeiro
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz and Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | | | - Shannan L Rossi
- Department of Microbiology & Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - George Saade
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA
| | - Raymond F Schinazi
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA; Center for AIDS Research, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Geraldine O Schott-Lerner
- Department of Biochemistry and Molecular Biology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Chao Shan
- Department of Biochemistry and Molecular Biology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Pei-Yong Shi
- Department of Biochemistry and Molecular Biology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - David I Watkins
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA; Department of Pathology, University of Miami, Miami, FL, USA
| | - Nikos Vasilakis
- Department of Pathology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Scott C Weaver
- Global Virus Network, 725 West Lombard St., Baltimore, MD, USA; Department of Microbiology & Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA.
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Santos VS, Oliveira SJG, Gurgel RQ, Lima DRR, dos Santos CA, Martins-Filho PRS. Case Report: Microcephaly in Twins due to the Zika Virus. Am J Trop Med Hyg 2017; 97:151-154. [PMID: 28719330 PMCID: PMC5508915 DOI: 10.4269/ajtmh.16-1021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 02/20/2017] [Indexed: 01/04/2023] Open
Abstract
Recent studies have demonstrated an association between congenital Zika virus (ZIKV) infection and microcephaly; however, to date, there have been no reports on the consequences of ZIKV infection on fetuses in twin pregnancies. Herein, we reported on the first case of a monochorionic diamniotic (MCDA) twin pregnancy having ZIKV-related microcephaly. Our findings suggested that, in an MCDA twin pregnancy, the ZIKV may cause infection in both fetuses, resulting in severe abnormalities in the central nervous system due to neural cell destruction and the disruption of the normal development processes of the brain. This case report and other similar twin cases may help to understand the pathogenesis and to confirm the etiology of ZIKV as a teratogenic microorganism.
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75
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Gavegnano C, Bassit LC, Cox BD, Hsiao HM, Johnson EL, Suthar M, Chakraborty R, Schinazi RF. Jak Inhibitors Modulate Production of Replication-Competent Zika Virus in Human Hofbauer, Trophoblasts, and Neuroblastoma cells. Pathog Immun 2017; 2:199-218. [PMID: 28776046 PMCID: PMC5538373 DOI: 10.20411/pai.v2i2.190] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Zika Virus (ZIKV) is a flavivirus that has been implicated in causing brain deformations, birth defects, and microcephaly in fetuses, and associated with Guillain-Barre syndrome. Mechanisms responsible for transmission of ZIKV across the placenta to the fetus are incompletely understood. Herein, we define key events modulating infection in clinically relevant cells, including primary placental macrophages (human Hofbauer cells; HC), trophoblasts, and neuroblastoma cells. Consistent with previous findings, HC and trophoblasts are permissive to ZIKV infection. Decrease of interferon signaling by Jak ½ inhibition (using ruxolitinib) significantly increased ZIKV replication in HC, trophoblasts, and neuroblasts. Enhanced ZIKV production in ruxolitinib-treated HC was associated with increased expression of HLA-DR and DC-SIGN. Nucleoside analogs blocked ruxolitinib-mediated production of extracellular virus. Although low-level ZIKV infection occurred in untreated HC and trophoblasts, replicating virions were incapable of infecting naive Vero cells. These deficient virions from untreated HC have “thin-coats” suggesting an immature structure. Blocking Jak ½ signaling (with ruxolitinib) restored replication competence as virions produced under these conditions confer cytopathic effects to naive Vero cells. These data demonstrate that Jak-STAT signaling directly impacts the ability of primary placental cells to produce replication-competent virus and is a key determinant in the production of mature virions in clinically relevant cells, including HC and trophoblasts. Design of targeted agents to prevent ZIKV replication in the placenta should consider Jak ½ signaling, the impact of its block on ZIKV infection, and subsequent transmission to the fetus.
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Affiliation(s)
- Christina Gavegnano
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Leda C Bassit
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Bryan D Cox
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Hui-Mien Hsiao
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Erica L Johnson
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Mehul Suthar
- Emory Vaccine Center, Yerkes National Primate Center, Emory University, Atlanta, Georgia
| | - Rana Chakraborty
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Raymond F Schinazi
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, Georgia
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76
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De Novo Generation and Characterization of New Zika Virus Isolate Using Sequence Data from a Microcephaly Case. mSphere 2017; 2:mSphere00190-17. [PMID: 28529976 PMCID: PMC5437134 DOI: 10.1128/mspheredirect.00190-17] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 05/02/2017] [Indexed: 12/19/2022] Open
Abstract
The major complications of an ongoing Zika virus outbreak in the Americas and Asia are congenital defects caused by the virus’s ability to cross the placenta and infect the fetal brain. The ability to generate molecular tools to analyze viral isolates from the current outbreak is essential for furthering our understanding of how these viruses cause congenital defects. The majority of existing viral isolates and infectious cDNA clones generated from them have undergone various numbers of passages in cell culture and/or suckling mice, which is likely to result in the accumulation of adaptive mutations that may affect viral properties. The approach described herein allows rapid generation of new, fully functional Zika virus isolates directly from deep sequencing data from virus-infected tissues without the need for prior virus passaging and for the generation and propagation of full-length cDNA clones. The approach should be applicable to other medically important flaviviruses and perhaps other positive-strand RNA viruses. Zika virus (ZIKV) has recently emerged and is the etiological agent of congenital Zika syndrome (CZS), a spectrum of congenital abnormalities arising from neural tissue infections in utero. Herein, we describe the de novo generation of a new ZIKV isolate, ZIKVNatal, using a modified circular polymerase extension reaction protocol and sequence data obtained from a ZIKV-infected fetus with microcephaly. ZIKVNatal thus has no laboratory passage history and is unequivocally associated with CZS. ZIKVNatal could be used to establish a fetal brain infection model in IFNAR−/− mice (including intrauterine growth restriction) without causing symptomatic infections in dams. ZIKVNatal was also able to be transmitted by Aedes aegypti mosquitoes. ZIKVNatal thus retains key aspects of circulating pathogenic ZIKVs and illustrates a novel methodology for obtaining an authentic functional viral isolate by using data from deep sequencing of infected tissues. IMPORTANCE The major complications of an ongoing Zika virus outbreak in the Americas and Asia are congenital defects caused by the virus’s ability to cross the placenta and infect the fetal brain. The ability to generate molecular tools to analyze viral isolates from the current outbreak is essential for furthering our understanding of how these viruses cause congenital defects. The majority of existing viral isolates and infectious cDNA clones generated from them have undergone various numbers of passages in cell culture and/or suckling mice, which is likely to result in the accumulation of adaptive mutations that may affect viral properties. The approach described herein allows rapid generation of new, fully functional Zika virus isolates directly from deep sequencing data from virus-infected tissues without the need for prior virus passaging and for the generation and propagation of full-length cDNA clones. The approach should be applicable to other medically important flaviviruses and perhaps other positive-strand RNA viruses.
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77
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Cao B, Diamond MS, Mysorekar IU. Maternal-Fetal Transmission of Zika Virus: Routes and Signals for Infection. J Interferon Cytokine Res 2017; 37:287-294. [PMID: 28402153 DOI: 10.1089/jir.2017.0011] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The emerging mosquito-borne virus, Zika virus (ZIKV), has been causally associated with adverse pregnancy and neonatal outcomes, including miscarriage, microcephaly, serious brain abnormalities, and other birth defects indicative of a congenital ZIKV syndrome. In this review, we highlight work from human and animal studies on routes of infection in pregnancy that lead to adverse fetal and neonatal outcomes. A number of innate and adaptive immune mechanisms and signaling molecules that may have key roles in ZIKV infection pathogenesis are discussed along with putative viral entry pathways. A more granular understanding of pathogenesis of ZIKV infection during pregnancy is critical for developing therapeutics and vaccines and mounting a global public health response to limit ZIKV infections. We also report on new therapeutic interventions that have shown success in preclinical studies.
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Affiliation(s)
- Bin Cao
- 1 Department of Obstetrics and Gynecology, Washington University School of Medicine , St. Louis, Missouri
| | - Michael S Diamond
- 2 Department of Medicine, Washington University School of Medicine , St. Louis, Missouri.,3 Department of Pathology and Immunology, Washington University School of Medicine , St. Louis, Missouri.,4 Department of Molecular Microbiology, Washington University School of Medicine , St. Louis, Missouri
| | - Indira U Mysorekar
- 1 Department of Obstetrics and Gynecology, Washington University School of Medicine , St. Louis, Missouri.,3 Department of Pathology and Immunology, Washington University School of Medicine , St. Louis, Missouri
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