201
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Li H, Saucedo-Cuevas L, Yuan L, Ross D, Johansen A, Sands D, Stanley V, Guemez-Gamboa A, Gregor A, Evans T, Chen S, Tan L, Molina H, Sheets N, Shiryaev SA, Terskikh AV, Gladfelter AS, Shresta S, Xu Z, Gleeson JG. Zika Virus Protease Cleavage of Host Protein Septin-2 Mediates Mitotic Defects in Neural Progenitors. Neuron 2019; 101:1089-1098.e4. [PMID: 30713029 PMCID: PMC6690588 DOI: 10.1016/j.neuron.2019.01.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 10/17/2018] [Accepted: 12/31/2018] [Indexed: 01/06/2023]
Abstract
Zika virus (ZIKV) targets neural progenitor cells in the brain, attenuates cell proliferation, and leads to cell death. Here, we describe a role for the ZIKV protease NS2B-NS3 heterodimer in mediating neurotoxicity through cleavage of a host protein required for neurogenesis. Similar to ZIKV infection, NS2B-NS3 expression led to cytokinesis defects and cell death in a protease activity-dependent fashion. Among binding partners, NS2B-NS3 cleaved Septin-2, a cytoskeletal factor involved in cytokinesis. Cleavage of Septin-2 occurred at residue 306 and forced expression of a non-cleavable Septin-2 restored cytokinesis, suggesting a direct mechanism of ZIKV-induced neural toxicity. VIDEO ABSTRACT.
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Affiliation(s)
- Hongda Li
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Laura Saucedo-Cuevas
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Ling Yuan
- Institute of Genetics & Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Danica Ross
- Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Anide Johansen
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Daniel Sands
- Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Valentina Stanley
- Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Alicia Guemez-Gamboa
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Anne Gregor
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Todd Evans
- Department of Surgery, Weill Cornell Medicine, New York, NY 10065, USA
| | - Shuibing Chen
- Department of Surgery, Weill Cornell Medicine, New York, NY 10065, USA
| | - Lei Tan
- Department of Surgery, Weill Cornell Medicine, New York, NY 10065, USA
| | - Henrik Molina
- Proteomics Resource Center, The Rockefeller University, New York, NY 10065, USA
| | - Nicholas Sheets
- La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA
| | - Sergey A Shiryaev
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Alexey V Terskikh
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Amy S Gladfelter
- Department of Biology, Howard Hughes Medical Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Sujan Shresta
- La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA
| | - Zhiheng Xu
- Institute of Genetics & Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Joseph G Gleeson
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA.
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202
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Li H, Saucedo-Cuevas L, Yuan L, Ross D, Johansen A, Sands D, Stanley V, Guemez-Gamboa A, Gregor A, Evans T, Chen S, Tan L, Molina H, Sheets N, Shiryaev SA, Terskikh AV, Gladfelter AS, Shresta S, Xu Z, Gleeson JG. Zika Virus Protease Cleavage of Host Protein Septin-2 Mediates Mitotic Defects in Neural Progenitors. Neuron 2019; 101:1089-1098.e4. [PMID: 30713029 PMCID: PMC6690588 DOI: 10.1016/j.neuron.2019.01.010#mmc4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 10/17/2018] [Accepted: 12/31/2018] [Indexed: 10/03/2024]
Abstract
Zika virus (ZIKV) targets neural progenitor cells in the brain, attenuates cell proliferation, and leads to cell death. Here, we describe a role for the ZIKV protease NS2B-NS3 heterodimer in mediating neurotoxicity through cleavage of a host protein required for neurogenesis. Similar to ZIKV infection, NS2B-NS3 expression led to cytokinesis defects and cell death in a protease activity-dependent fashion. Among binding partners, NS2B-NS3 cleaved Septin-2, a cytoskeletal factor involved in cytokinesis. Cleavage of Septin-2 occurred at residue 306 and forced expression of a non-cleavable Septin-2 restored cytokinesis, suggesting a direct mechanism of ZIKV-induced neural toxicity. VIDEO ABSTRACT.
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Affiliation(s)
- Hongda Li
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Laura Saucedo-Cuevas
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Ling Yuan
- Institute of Genetics & Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Danica Ross
- Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Anide Johansen
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Daniel Sands
- Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Valentina Stanley
- Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Alicia Guemez-Gamboa
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Anne Gregor
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Todd Evans
- Department of Surgery, Weill Cornell Medicine, New York, NY 10065, USA
| | - Shuibing Chen
- Department of Surgery, Weill Cornell Medicine, New York, NY 10065, USA
| | - Lei Tan
- Department of Surgery, Weill Cornell Medicine, New York, NY 10065, USA
| | - Henrik Molina
- Proteomics Resource Center, The Rockefeller University, New York, NY 10065, USA
| | - Nicholas Sheets
- La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA
| | - Sergey A Shiryaev
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Alexey V Terskikh
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Amy S Gladfelter
- Department of Biology, Howard Hughes Medical Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Sujan Shresta
- La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA
| | - Zhiheng Xu
- Institute of Genetics & Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Joseph G Gleeson
- Laboratory for Pediatric Brain Disease, The Rockefeller University, New York, NY 10065, USA; Howard Hughes Medical Institute, Rady Children's Institute of Genomic Medicine, Department of Neurosciences, University of California, San Diego, San Diego, CA 92093, USA.
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203
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Pardy RD, Valbon SF, Richer MJ. Running interference: Interplay between Zika virus and the host interferon response. Cytokine 2019; 119:7-15. [PMID: 30856603 DOI: 10.1016/j.cyto.2019.02.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 02/07/2019] [Accepted: 02/10/2019] [Indexed: 12/11/2022]
Abstract
The interferon (IFN) family of cytokines is a crucial part of the host's ability to mount an effective immune response against viral infections. In addition to establishing an antiviral state within cells, IFNs also support the optimal activation of other key immune cell types. The ability of members of the Flaviviridae family to suppress type I IFN responses has been well-described. Of these viruses, Zika virus (ZIKV) has recently attracted international attention due to a series of major outbreaks that featured the novel association of neurological symptoms with infection. Researchers have begun to investigate the strategies ZIKV uses to evade type I IFNs, and the impact this has on the host. However, a unique feature of ZIKV infection compared to other flaviviruses is its capacity to be transmitted sexually, as well as its ability to infect and persist within reproductive tissues. As such, this raises the question of a potential role for type III IFN during ZIKV infection. In this review, we will discuss the interplay between these two classes of IFN with ZIKV, models that have been used to interrogate these interactions, and the effect this interplay has on infection and infection outcomes. We will also consider the intriguing possibility of whether ZIKV has evolved improved evasion mechanisms to suppress the IFN response in recent outbreaks.
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Affiliation(s)
- Ryan D Pardy
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada; Rosalind & Morris Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada
| | - Stefanie F Valbon
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada; Rosalind & Morris Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada
| | - Martin J Richer
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada; Rosalind & Morris Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada.
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204
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Hastings AK, Hastings K, Uraki R, Hwang J, Gaitsch H, Dhaliwal K, Williamson E, Fikrig E. Loss of the TAM Receptor Axl Ameliorates Severe Zika Virus Pathogenesis and Reduces Apoptosis in Microglia. iScience 2019; 13:339-350. [PMID: 30884311 PMCID: PMC6424058 DOI: 10.1016/j.isci.2019.03.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/10/2018] [Accepted: 03/01/2019] [Indexed: 01/12/2023] Open
Abstract
The TAM receptor, Axl, has been implicated as a candidate entry receptor for Zika virus (ZIKV) infection but has been shown as inessential for virus infection in mice. To probe the role of Axl in murine ZIKV infection, we developed a mouse model lacking the Axl receptor and the interferon alpha/beta receptor (Ifnar−/−Axl−/−), conferring susceptibility to ZIKV. This model validated that Axl is not required for murine ZIKV infection and that mice lacking Axl are resistant to ZIKV pathogenesis. This resistance correlates to lower pro-interleukin-1β production and less apoptosis in microglia of ZIKV-infected mice. This apoptosis occurs through both intrinsic (caspase 9) and extrinsic (caspase 8) manners, and is age dependent, as younger Axl-deficient mice are susceptible to ZIKV pathogenesis. These findings suggest that Axl plays an important role in pathogenesis in the brain during ZIKV infection and indicates a potential role for Axl inhibitors as therapeutics during viral infection. IFNAR−/−Axl−/− mice show Axl unnecessary for Zika virus replication in mice Mice lacking Axl receptor are significantly resistant to Zika virus neuropathogenesis IFNAR−/−Axl−/− mice have less ZIKV-driven caspase-dependent apoptosis in brain Axl deficient mice have fewer apoptotic microglia after ZIKV infection
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Affiliation(s)
- Andrew K Hastings
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Katherine Hastings
- Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Ryuta Uraki
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Jesse Hwang
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Hallie Gaitsch
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Khushwant Dhaliwal
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Eric Williamson
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Erol Fikrig
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA; Howard Hughes Medical Institute, Chevy Chase MD 20815, USA.
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205
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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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206
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Lei J, Vermillion MS, Jia B, Xie H, Xie L, McLane MW, Sheffield JS, Pekosz A, Brown A, Klein SL, Burd I. IL-1 receptor antagonist therapy mitigates placental dysfunction and perinatal injury following Zika virus infection. JCI Insight 2019; 4:122678. [PMID: 30944243 DOI: 10.1172/jci.insight.122678] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 02/14/2019] [Indexed: 12/25/2022] Open
Abstract
Zika virus (ZIKV) infection during pregnancy causes significant adverse sequelae in the developing fetus, and results in long-term structural and neurologic defects. Most preventive and therapeutic efforts have focused on the development of vaccines, antivirals, and antibodies. The placental immunologic response to ZIKV, however, has been largely overlooked as a target for therapeutic intervention. The placental inflammatory response, specifically IL-1β secretion and signaling, is induced by ZIKV infection and represents an environmental factor that is known to increase the risk of perinatal developmental abnormalities. We show in a mouse model that maternally administrated IL-1 receptor antagonist (IRA; Kineret, or anakinra), following ZIKV exposure, can preserve placental function (by improving trophoblast invasion and placental vasculature), increase fetal viability, and reduce neurobehavioral deficits in the offspring. We further demonstrate that while ZIKV RNA is highly detectable in placentas, it is not correlated with fetal viability. Beyond its effects in the placenta, we show that IL-1 blockade may also directly decrease fetal neuroinflammation by mitigating fetal microglial activation in a dose-dependent manner. Our studies distinguish the role of placental inflammation during ZIKV-infected pregnancies, and demonstrate that maternal IRA may attenuate fetal neuroinflammation and improve perinatal outcomes.
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Affiliation(s)
- Jun Lei
- Integrated Research Center for Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Meghan S Vermillion
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.,Department of Molecular and Comparative Pathobiology
| | - Bei Jia
- Integrated Research Center for Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Han Xie
- Integrated Research Center for Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Li Xie
- Integrated Research Center for Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Michael W McLane
- Integrated Research Center for Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jeanne S Sheffield
- Integrated Research Center for Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Andrew Pekosz
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Amanda Brown
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sabra L Klein
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.,Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Irina Burd
- Integrated Research Center for Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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207
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Gratton R, Agrelli A, Tricarico PM, Brandão L, Crovella S. Autophagy in Zika Virus Infection: A Possible Therapeutic Target to Counteract Viral Replication. Int J Mol Sci 2019; 20:ijms20051048. [PMID: 30823365 PMCID: PMC6429311 DOI: 10.3390/ijms20051048] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 02/21/2019] [Accepted: 02/23/2019] [Indexed: 12/12/2022] Open
Abstract
Zika virus (ZIKV) still constitutes a public health concern, however, no vaccines or therapies are currently approved for treatment. A fundamental process involved in ZIKV infection is autophagy, a cellular catabolic pathway delivering cytoplasmic cargo to the lysosome for degradation—considered as a primordial form of innate immunity against invading microorganisms. ZIKV is thought to inhibit the Akt-mTOR signaling pathway, which causes aberrant activation of autophagy promoting viral replication and propagation. It is therefore appealing to study the role of autophagic molecular effectors during viral infection to identify potential targets for anti-ZIKV therapeutic intervention.
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Affiliation(s)
- Rossella Gratton
- Department of Advanced Diagnostics, IRCCS Burlo Garofolo, Via dell'Istria 65/1, 34137 Trieste, Italy.
| | - Almerinda Agrelli
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235-Cidade Universitária, 50670-901 Recife, Brazil.
| | - Paola Maura Tricarico
- Department of Advanced Diagnostics, IRCCS Burlo Garofolo, Via dell'Istria 65/1, 34137 Trieste, Italy.
| | - Lucas Brandão
- Department of Pathology, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235-Cidade Universitária, 50670-901 Recife, Brazil.
| | - Sergio Crovella
- Department of Advanced Diagnostics, IRCCS Burlo Garofolo, Via dell'Istria 65/1, 34137 Trieste, Italy.
- Department of Medical Surgical and Health Sciences, University of Trieste, Strada di Fiume 447, 34149 Trieste, Italy.
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208
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Seferovic MD, Turley M, Valentine GC, Rac M, Castro ECC, Major AM, Sanchez B, Eppes C, Sanz-Cortes M, Dunn J, Kautz TF, Versalovic J, Muldrew KL, Stout T, Belfort MA, Demmler-Harrison G, Aagaard KM. Clinical Importance of Placental Testing among Suspected Cases of Congenital Zika Syndrome. Int J Mol Sci 2019; 20:ijms20030712. [PMID: 30736425 PMCID: PMC6387308 DOI: 10.3390/ijms20030712] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 01/24/2019] [Accepted: 02/01/2019] [Indexed: 12/15/2022] Open
Abstract
Contemporaneous Zika virus (ZIKV) strains can cause congenital Zika syndrome (CZS). Current ZIKV clinical laboratory testing strategies are limited and include IgM serology (which may wane 12 weeks after initial exposure) and nucleic acid testing (NAT) of maternal serum, urine, and placenta for (+) strand ZIKV RNA (which is often transient). The objectives of this study were to determine if use of additional molecular tools, such as quantitative PCR and microscopy, would add to the diagnostic value of current standard placental ZIKV testing in cases with maternal endemic exposure and indeterminate testing. ZIKV RNA was quantified from dissected sections of placental villi, chorioamnion sections, and full cross-sections of umbilical cord in all cases examined. Quantitation with high-resolution automated electrophoresis determined relative amounts of precisely verified ZIKV (74-nt amplicons). In order to localize and visualize stable and actively replicating placental ZIKV in situ, labeling of flaviviridae glycoprotein, RNA ISH against both (+) and (⁻) ZIKV-specific ssRNA strands, and independent histologic examination for significant pathologic changes were employed. We demonstrate that the use of these molecular tools added to the diagnostic value of placental ZIKV testing among suspected cases of congenital Zika syndrome with poorly ascribed maternal endemic exposure.
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Affiliation(s)
- Maxim D Seferovic
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Michelle Turley
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Gregory C Valentine
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
- Pediatrics, Section of Neonatology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Martha Rac
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Eumenia C C Castro
- Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Angela M Major
- Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Brianna Sanchez
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Catherine Eppes
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Magdalena Sanz-Cortes
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
| | - James Dunn
- Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Tiffany F Kautz
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
| | - James Versalovic
- Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA.
- Microbiology and Molecular Virology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Kenneth L Muldrew
- Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Timothy Stout
- Ophthalmology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Michael A Belfort
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Gail Demmler-Harrison
- Pediatrics, Section of Infectious Diseases at Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA.
| | - Kjersti M Aagaard
- Departments of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
- Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.
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209
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Brown JA, Singh G, Acklin JA, Lee S, Duehr JE, Chokola AN, Frere JJ, Hoffman KW, Foster GA, Krysztof D, Cadagan R, Jacobs AR, Stramer SL, Krammer F, García-Sastre A, Lim JK. Dengue Virus Immunity Increases Zika Virus-Induced Damage during Pregnancy. Immunity 2019; 50:751-762.e5. [PMID: 30737148 DOI: 10.1016/j.immuni.2019.01.005] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 11/30/2018] [Accepted: 01/10/2019] [Indexed: 01/13/2023]
Abstract
Zika virus (ZIKV) has recently been associated with birth defects and pregnancy loss after maternal infection. Because dengue virus (DENV) and ZIKV co-circulate, understanding the role of antibody-dependent enhancement in the context of pregnancy is critical. Here, we showed that the presence of DENV-specific antibodies in ZIKV-infected pregnant mice significantly increased placental damage, fetal growth restriction, and fetal resorption. This was associated with enhanced viral replication in the placenta that coincided with an increased frequency of infected trophoblasts. ZIKV-infected human placental tissues also showed increased replication in the presence of DENV antibodies, which was reversed by FcγR blocking antibodies. Furthermore, ZIKV-mediated fetal pathogenesis was enhanced in mice in the presence of a DENV-reactive monoclonal antibody, but not in the presence of the LALA variant, indicating a dependence on FcγR engagement. Our data suggest a possible mechanism for the recent increase in severe pregnancy outcomes after ZIKV infection in DENV-endemic areas.
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Affiliation(s)
- Julia A Brown
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Gursewak Singh
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Joshua A Acklin
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Silviana Lee
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - James E Duehr
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Anupa N Chokola
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Justin J Frere
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Kevin W Hoffman
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | | | - Richard Cadagan
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Adam R Jacobs
- Department of Obstetrics and Gynecology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jean K Lim
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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210
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Rossi ÁD, Faucz FR, Melo A, Pezzuto P, de Azevedo GS, Schamber-Reis BLF, Tavares JS, Mattapallil JJ, Tanuri A, Aguiar RS, Cardoso CC, Stratakis CA. Variations in maternal adenylate cyclase genes are associated with congenital Zika syndrome in a cohort from Northeast, Brazil. J Intern Med 2019; 285:215-222. [PMID: 30222212 PMCID: PMC6338508 DOI: 10.1111/joim.12829] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Vertical transmission of Zika virus (ZIKV) is associated with congenital malformations but the mechanism of pathogenesis remains unclear. Although host genetics appear to play a role, no genetic association study has yet been performed to evaluate this question. In order to investigate if maternal genetic variation is associated with Congenital Zika Syndrome (CZS), we conducted a case-control study in a cohort of Brazilian women infected with ZIKV during pregnancy. METHODS A total of 100 women who reported symptoms of zika during pregnancy were enrolled and tested for ZIKV. Among 52 women positive for ZIKV infection, 28 were classified as cases and 24 as controls based on the presence or absence of CZS in their infants. Variations in the coding region of 205 candidate genes involved in cAMP signaling or immune response were assessed by high throughput sequencing and tested for association with development of CZS. RESULTS From the 817 single nucleotide variations (SNVs) included in association analyses, 22 SNVs in 17 genes were associated with CZS under an additive model (alpha = 0.05). Variations c.319T>C (rs11676272) and c.1297G>A, located at ADCY3 and ADCY7 genes showed the most prominent effect. The association of ADCY3 and ADCY7 genes was confirmed using a Sequence Kernel Association Test to assess the joint effect of common and rare variations, and results were statistically significant after adjustment for multiple comparisons (P < 0.002). CONCLUSION These results suggest that maternal ADCY genes contribute to ZIKV pathogenicity and influence the outcome of CZS, being promising candidates for further replication studies and functional analysis.
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Affiliation(s)
- Á D Rossi
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - F R Faucz
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - A Melo
- Instituto de Pesquisa Professor Joaquim Amorim Neto (IPESQ), Campina Grande, Brazil
| | - P Pezzuto
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - G S de Azevedo
- Instituto de Pesquisa Professor Joaquim Amorim Neto (IPESQ), Campina Grande, Brazil
| | - B L F Schamber-Reis
- Faculdade de Ciências Médicas de Campina Grande, Núcleo de Genética Médica, Centro Universitário UniFacisa, Campina Grande, Brazil
| | - J S Tavares
- Instituto de Pesquisa Professor Joaquim Amorim Neto (IPESQ), Campina Grande, Brazil
| | - J J Mattapallil
- Department of Microbiology & Immunology, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD, USA
| | - A Tanuri
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - R S Aguiar
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - C C Cardoso
- Laboratório de Virologia Molecular, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - C A Stratakis
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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211
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Carlin AF, Shresta S. Genome-wide approaches to unravelling host-virus interactions in Dengue and Zika infections. Curr Opin Virol 2019; 34:29-38. [PMID: 30576956 PMCID: PMC6476700 DOI: 10.1016/j.coviro.2018.11.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/08/2018] [Accepted: 11/30/2018] [Indexed: 12/16/2022]
Abstract
Genomics approaches are increasingly utilized to probe host-viral interactions and identify mechanisms of viral pathogenesis and host-subversion. Here we review recent studies that utilize Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas9 screens, transcriptomics and epigenomics to gain insight into Dengue and Zika virus infections in humans. We discuss the benefits and limitations of recently utilized techniques that separate virally infected cells from neighboring uninfected cells to identify the mechanisms by which these viruses regulate host responses. We conclude by discussing how these approaches can best advance our understanding of Dengue and Zika virus pathogenesis in humans.
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Affiliation(s)
- Aaron F Carlin
- Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, United States.
| | - Sujan Shresta
- Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, United States; Division of Inflammation Biology, La Jolla Institute for Immunology, La Jolla, CA, United States.
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212
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Abstract
Zika virus is a mosquito-borne Flavivirus responsible for symptomatic and asymptomatic infections in humans. Zika was first identified in Africa as a cause of sporadic febrile illness. Beginning in 2015, Zika virus infection was identified in Brazil and linked with several symptomatic infections. Notably, congenital infections were observed with marked neurologic abnormalities. Diagnosis relies on detection of Zika virus by real-time polymerase chain reaction or by the presence of anti-Zika antibodies. Treatment of this viral illness remains supportive; however, proactive screening and interventions are indicated in the treatment of infants with symptomatic congenital infection.
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Affiliation(s)
- David Taylor Hendrixson
- Department of Pediatrics, Division of Infectious Diseases, Washington University in St. Louis, St. Louis Children's Hospital, Campus Box 8116, 1 Children's Place, St Louis, MO 63110, USA.
| | - Jason G Newland
- Department of Pediatrics, Division of Infectious Diseases, Washington University in St. Louis, St. Louis Children's Hospital, Campus Box 8116, 1 Children's Place, St Louis, MO 63110, USA
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213
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Gorshkov K, Shiryaev SA, Fertel S, Lin YW, Huang CT, Pinto A, Farhy C, Strongin AY, Zheng W, Terskikh AV. Zika Virus: Origins, Pathological Action, and Treatment Strategies. Front Microbiol 2019; 9:3252. [PMID: 30666246 PMCID: PMC6330993 DOI: 10.3389/fmicb.2018.03252] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 12/14/2018] [Indexed: 01/05/2023] Open
Abstract
The Zika virus (ZIKV) global epidemic prompted the World Health Organization to declare it a 2016 Public Health Emergency of International Concern. The overwhelming experience over the past several years teaches us that ZIKV and the associated neurological complications represent a long-term world-wide challenge to public health. Although the number of ZIKV cases in the Western Hemisphere has dropped since 2016, the need for basic research and anti-ZIKV drug development remains strong. Re-emerging viruses like ZIKV are an ever-present threat in the 21st century where fast transcontinental travel lends itself to viral epidemics. Here, we first present the origin story for ZIKV and review the rapid progress researchers have made toward understanding of the ZIKV pathology and in the design, re-purposing, and testing–particularly in vivo–drug candidates for ZIKV prophylaxis and therapy ZIKV. Quite remarkably, a short, but intensive, drug-repurposing effort has already resulted in several readily available FDA-approved drugs that are capable of effectively combating the virus in infected adult mouse models and, most importantly, in both preventing maternal-fetal transmission and severe microcephaly in newborns in pregnant mouse models.
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Affiliation(s)
- Kirill Gorshkov
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, United States
| | - Sergey A Shiryaev
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Sophie Fertel
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Yi-Wen Lin
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Chun-Teng Huang
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Antonella Pinto
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Chen Farhy
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Alex Y Strongin
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
| | - Wei Zheng
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, United States
| | - Alexey V Terskikh
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
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214
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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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215
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Walker CL, Little MTE, Roby JA, Armistead B, Gale M, Rajagopal L, Nelson BR, Ehinger N, Mason B, Nayeri U, Curry CL, Adams Waldorf KM. Zika virus and the nonmicrocephalic fetus: why we should still worry. Am J Obstet Gynecol 2019; 220:45-56. [PMID: 30171843 PMCID: PMC6501788 DOI: 10.1016/j.ajog.2018.08.035] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/12/2018] [Accepted: 08/21/2018] [Indexed: 02/06/2023]
Abstract
Zika virus is a mosquito-transmitted flavivirus and was first linked to congenital microcephaly caused by a large outbreak in northeastern Brazil. Although the Zika virus epidemic is now in decline, pregnancies in large parts of the Americas remain at risk because of ongoing transmission and the potential for new outbreaks. This review presents why Zika virus is still a complex and worrisome public health problem with an expanding spectrum of birth defects and how Zika virus and related viruses evade the immune response to injure the fetus. Recent reports indicate that the spectrum of fetal brain and other anomalies associated with Zika virus exposure is broader and more complex than microcephaly alone and includes subtle fetal brain and ocular injuries; thus, the ability to prenatally diagnose fetal injury associated with Zika virus infection remains limited. New studies indicate that Zika virus imparts disproportionate effects on fetal growth with an unusual femur-sparing profile, potentially providing a new approach to identify viral injury to the fetus. Studies to determine the limitations of prenatal and postnatal testing for detection of Zika virus-associated birth defects and long-term neurocognitive deficits are needed to better guide women with a possible infectious exposure. It is also imperative that we investigate why the Zika virus is so adept at infecting the placenta and the fetal brain to better predict other viruses with similar capabilities that may give rise to new epidemics. The efficiency with which the Zika virus evades the early immune response to enable infection of the mother, placenta, and fetus is likely critical for understanding why the infection may either be fulminant or limited. Furthermore, studies suggest that several emerging and related viruses may also cause birth defects, including West Nile virus, which is endemic in many parts of the United States. With mosquito-borne diseases increasing worldwide, there remains an urgent need to better understand the pathogenesis of the Zika virus and related viruses to protect pregnancies and child health.
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Affiliation(s)
- Christie L Walker
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of Washington, Seattle, WA
| | - Marie-Térèse E Little
- Fourth Dimension Biomedical and Research Consulting, Victoria, British Columbia, Canada
| | - Justin A Roby
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington, Seattle, WA
| | - Blair Armistead
- Department of Global Health, University of Washington, Seattle, WA; Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA
| | - Michael Gale
- Center for Innate Immunity and Immune Disease, Departments of Immunology, Microbiology, and Global Health, University of Washington, Seattle, WA
| | - Lakshmi Rajagopal
- Center for Innate Immunity and Immune Disease, Department of Pediatrics, University of Washington, Seattle, WA; Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA
| | - Branden R Nelson
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA
| | - Noah Ehinger
- Department of Obstetrics and Gynecology, University of Miami, Miami, FL
| | - Brittney Mason
- Department of Obstetrics and Gynecology, University of Miami, Miami, FL
| | - Unzila Nayeri
- Department of Obstetrics and Gynecology, University of Miami, Miami, FL
| | - Christine L Curry
- Department of Obstetrics and Gynecology, University of Miami, Miami, FL
| | - Kristina M Adams Waldorf
- Department of Obstetrics and Gynecology and Global Health, University of Washington, Seattle, WA; Center for Innate Immunity and Immune Disease, University of Washington, Seattle, WA; Sahlgrenska Academy, Gothenburg University, Gothenburg Sweden.
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216
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Zika virus infection in human placental tissue explants is enhanced in the presence of dengue virus antibodies in-vitro. Emerg Microbes Infect 2018; 7:198. [PMID: 30504926 PMCID: PMC6274641 DOI: 10.1038/s41426-018-0199-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 11/02/2018] [Accepted: 11/11/2018] [Indexed: 01/21/2023]
Abstract
The current Zika virus (ZIKV) outbreak is associated with neurological malformations and disorders in neonates. Areas of increased incidence of malformations may overlap with dengue-hyperendemic areas. ZIKV infection is enhanced by antibodies against dengue virus (DENV) in cell culture and inbred mice. Sufficiently powered clinical studies or primate studies addressing the enhancement of fetal ZIKV infection after previous dengue infection are not available. The human placenta is susceptible to ZIKV in vitro, but it is unknown whether antibody-dependent enhancement of ZIKV infection occurs at the placental barrier. Here we studied ZIKV infection in placental tissue in the presence of DENV-immune sera. Explants from the amniochorionic membrane, the chorionic villi, and the maternal decidua were infected with ZIKV in the presence of DENV type 1-, 2-, or 4-immune sera, or controls. Presence of DENV antibodies of any type enhanced the percentage of successful infections of organ explants between 1.42- and 2.67-fold, and led to a faster replication as well as significantly increased virus production. No enhancement was seen with yellow fever or chikungunya virus control sera. Pre-existing DENV antibodies may pose an increased risk of trans-placental ZIKV transmission.
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217
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Pena LJ, Miranda Guarines K, Duarte Silva AJ, Sales Leal LR, Mendes Félix D, Silva A, de Oliveira SA, Junqueira Ayres CF, Júnior AS, de Freitas AC. In vitro and in vivo models for studying Zika virus biology. J Gen Virol 2018; 99:1529-1550. [DOI: 10.1099/jgv.0.001153] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Lindomar José Pena
- 1Department of Virology, Aggeu Magalhaes Institute (IAM), Oswaldo Cruz Foundation (Fiocruz), Recife, Pernambuco, Brazil
| | - Klarissa Miranda Guarines
- 1Department of Virology, Aggeu Magalhaes Institute (IAM), Oswaldo Cruz Foundation (Fiocruz), Recife, Pernambuco, Brazil
| | - Anna Jéssica Duarte Silva
- 2Department of Genetics, Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Center of Biological Sciences, Federal University of Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Lígia Rosa Sales Leal
- 2Department of Genetics, Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Center of Biological Sciences, Federal University of Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Daniele Mendes Félix
- 1Department of Virology, Aggeu Magalhaes Institute (IAM), Oswaldo Cruz Foundation (Fiocruz), Recife, Pernambuco, Brazil
| | - Adalúcia Silva
- 1Department of Virology, Aggeu Magalhaes Institute (IAM), Oswaldo Cruz Foundation (Fiocruz), Recife, Pernambuco, Brazil
| | - Sheilla Andrade de Oliveira
- 3Department of Immunology, Aggeu Magalhaes Institute (IAM), Oswaldo Cruz Foundation (Fiocruz), Recife, Pernambuco, Brazil
| | | | - Abelardo Silva Júnior
- 5Department of Veterinary Medicine, Federal University of Viçosa (UFV), Viçosa, Minas Gerais, Brazil
| | - Antonio Carlos de Freitas
- 2Department of Genetics, Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Center of Biological Sciences, Federal University of Pernambuco (UFPE), Recife, Pernambuco, Brazil
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218
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Tavakoli A, Esghaei M, Karbalaie Niya MH, Marjani A, Tabibzadeh A, Karimzadeh M, Monavari SH. A comprehensive review of Zika virus infection. THE JOURNAL OF QAZVIN UNIVERSITY OF MEDICAL SCIENCES 2018. [DOI: 10.29252/qums.22.5.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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219
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Zika virus: lessons learned in Brazil. Microbes Infect 2018; 20:661-669. [DOI: 10.1016/j.micinf.2018.02.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 02/15/2018] [Accepted: 02/21/2018] [Indexed: 01/07/2023]
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220
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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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221
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Luo H, Winkelmann ER, Zhu S, Ru W, Mays E, Silvas JA, Vollmer LL, Gao J, Peng BH, Bopp NE, Cromer C, Shan C, Xie G, Li G, Tesh R, Popov VL, Shi PY, Sun SC, Wu P, Klein RS, Tang SJ, Zhang W, Aguilar PV, Wang T. Peli1 facilitates virus replication and promotes neuroinflammation during West Nile virus infection. J Clin Invest 2018; 128:4980-4991. [PMID: 30247157 PMCID: PMC6205407 DOI: 10.1172/jci99902] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 08/07/2018] [Indexed: 12/16/2022] Open
Abstract
The E3 ubiquitin ligase Pellino 1 (Peli1) is a microglia-specific mediator of autoimmune encephalomyelitis. Its role in neurotropic flavivirus infection is largely unknown. Here, we report that mice deficient in Peli1 (Peli1-/-) were more resistant to lethal West Nile virus (WNV) infection and exhibited reduced viral loads in tissues and attenuated brain inflammation. Peli1 mediates chemokine and proinflammatory cytokine production in microglia and promotes T cell and macrophage infiltration into the CNS. Unexpectedly, Peli1 was required for WNV entry and replication in mouse macrophages and mouse and human neurons and microglia. It was also highly expressed on WNV-infected neurons and adjacent inflammatory cells from postmortem patients who died of acute WNV encephalitis. WNV passaged in Peli1-/- macrophages or neurons induced a lower viral load and impaired activation in WT microglia and thereby reduced lethality in mice. Smaducin-6, which blocks interactions between Peli1 and IRAK1, RIP1, and IKKε, did not inhibit WNV-triggered microglia activation. Collectively, our findings suggest a nonimmune regulatory role for Peli1 in promoting microglia activation during WNV infection and identify a potentially novel host factor for flavivirus cell entry and replication.
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Affiliation(s)
- Huanle Luo
- Department of Microbiology and Immunology
| | | | - Shuang Zhu
- Department of Ophthalmology and Visual Sciences
| | - Wenjuan Ru
- Department of Neuroscience, Cell Biology and Anatomy, and
| | | | - Jesus A. Silvas
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, Texas, USA
| | - Lauren L. Vollmer
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Junling Gao
- Department of Neuroscience, Cell Biology and Anatomy, and
| | - Bi-Hung Peng
- Department of Neuroscience, Cell Biology and Anatomy, and
| | - Nathen E. Bopp
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, Texas, USA
| | - Courtney Cromer
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, Texas, USA
| | - Chao Shan
- Department of Biochemistry and Molecular Biology, and
| | - Guorui Xie
- Department of Microbiology and Immunology
| | - Guangyu Li
- Department of Microbiology and Immunology
| | - Robert Tesh
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, Texas, USA.,Institute for Human Infections and Immunity, UTMB, Galveston, Texas, USA
| | - Vsevolod L. Popov
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, Texas, USA.,Institute for Human Infections and Immunity, UTMB, Galveston, Texas, USA
| | - Pei-Yong Shi
- Department of Biochemistry and Molecular Biology, and,Institute for Human Infections and Immunity, UTMB, Galveston, Texas, USA
| | - Shao-Cong Sun
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ping Wu
- Department of Neuroscience, Cell Biology and Anatomy, and,Institute for Human Infections and Immunity, UTMB, Galveston, Texas, USA
| | - Robyn S. Klein
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Shao-Jun Tang
- Department of Neuroscience, Cell Biology and Anatomy, and,Institute for Human Infections and Immunity, UTMB, Galveston, Texas, USA
| | - Wenbo Zhang
- Department of Ophthalmology and Visual Sciences,,Department of Neuroscience, Cell Biology and Anatomy, and,Institute for Human Infections and Immunity, UTMB, Galveston, Texas, USA
| | - Patricia V. Aguilar
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, Texas, USA.,Institute for Human Infections and Immunity, UTMB, Galveston, Texas, USA
| | - Tian Wang
- Department of Microbiology and Immunology,,Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, Texas, USA.,Institute for Human Infections and Immunity, UTMB, Galveston, Texas, USA
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222
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Alves MP, Vielle NJ, Thiel V, Pfaender S. Research Models and Tools for the Identification of Antivirals and Therapeutics against Zika Virus Infection. Viruses 2018; 10:v10110593. [PMID: 30380760 PMCID: PMC6265910 DOI: 10.3390/v10110593] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 10/24/2018] [Accepted: 10/26/2018] [Indexed: 12/13/2022] Open
Abstract
Zika virus recently re-emerged and caused global outbreaks mainly in Central Africa, Southeast Asia, the Pacific Islands and in Central and South America. Even though there is a declining trend, the virus continues to spread throughout different geographical regions of the world. Since its re-emergence in 2015, massive advances have been made regarding our understanding of clinical manifestations, epidemiology, genetic diversity, genomic structure and potential therapeutic intervention strategies. Nevertheless, treatment remains a challenge as there is no licensed effective therapy available. This review focuses on the recent advances regarding research models, as well as available experimental tools that can be used for the identification and characterization of potential antiviral targets and therapeutic intervention strategies.
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Affiliation(s)
- Marco P Alves
- Institute of Virology and Immunology, 3012 Bern, Switzerland.
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland.
| | - Nathalie J Vielle
- Institute of Virology and Immunology, 3012 Bern, Switzerland.
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland.
- Graduate School for Cellular and Biomedical Sciences, University of Bern, 3012 Bern, Switzerland.
| | - Volker Thiel
- Institute of Virology and Immunology, 3012 Bern, Switzerland.
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland.
| | - Stephanie Pfaender
- Institute of Virology and Immunology, 3012 Bern, Switzerland.
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland.
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223
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Assay Challenges for Emerging Infectious Diseases: The Zika Experience. Vaccines (Basel) 2018; 6:vaccines6040070. [PMID: 30279372 PMCID: PMC6313918 DOI: 10.3390/vaccines6040070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 09/24/2018] [Accepted: 09/26/2018] [Indexed: 01/07/2023] Open
Abstract
From the perspective of vaccine development, it is imperative to accurately diagnose target infections in order to exclude subjects with prior exposure from evaluations of vaccine effectiveness, to track incident infection during the course of a clinical trial and to differentiate immune reactions due to natural infections from responses that are vaccine related. When vaccine development is accelerated to a rapid pace in response to emerging infectious disease threats, the challenges to develop such diagnostic tools is even greater. This was observed through the recent expansion of Zika virus infections into the Western Hemisphere in 2014⁻2017. When initial Zika vaccine clinical trials were being designed and launched in response to the outbreak, there were no standardized sets of viral and immunological assays, and no approved diagnostic tests for Zika virus infection. The diagnosis of Zika virus infection is still an area of active research and development on many fronts. Here we review emerging infectious disease vaccine clinical assay development and trial execution with a special focus on the state of Zika virus clinical assays and diagnostics.
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224
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Nonsteroidal Anti-inflammatory Drugs Potently Inhibit the Replication of Zika Viruses by Inducing the Degradation of AXL. J Virol 2018; 92:JVI.01018-18. [PMID: 30068645 DOI: 10.1128/jvi.01018-18] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 07/12/2018] [Indexed: 11/20/2022] Open
Abstract
Zika virus (ZIKV) is genetically and biologically related to other Flaviviridae family members and has disseminated to many countries. It is associated with severe consequences, including the abnormal development of the neural system in fetuses and neurological diseases in adults. Therefore, the development of anti-ZIKV drugs is of paramount importance. Screening of generic drugs revealed that several nonsteroidal anti-inflammatory drugs (NSAIDs), including aspirin, ibuprofen, naproxen, acetaminophen, and lornoxicam, potently inhibited the entry of Zika virus Env/HIV-1-pseudotyped viruses. They also significantly inhibited the replication of wild-type ZIKV both in cell lines and in primary human fetal endothelial cells. Interestingly, the NSAIDs exerted this inhibitory effect by potently reducing the expression of AXL, the entry cofactor of ZIKV. Further studies showed that the NSAIDs downregulated the prostaglandin E2/prostaglandin E receptor 2 (EP2)/cAMP/protein kinase A (PKA) signaling pathway and reduced PKA-dependent CDC37 phosphorylation and the interaction between CDC37 and HSP90, which subsequently facilitated CHIP/ubiquitination/proteasome-mediated AXL degradation. Taken together, our results highlight a new mechanism of action of antiviral agents which may assist in designing a convenient strategy for treating ZIKV-infected patients.IMPORTANCE Zika virus (ZIKV) infection, which causes congenital malformations, including microcephaly and other neurological disorders, has attracted global attention. We observed that several NSAIDs significantly inhibited ZIKV infection. Based on our observations, we propose a novel mechanism of action of antiviral compounds which involves the blockade of virus entry via degradation of the entry cofactor. Furthermore, NSAIDs can be practically used for preventing ZIKV infection in pregnant women, as certain NSAIDs, including ibuprofen and acetaminophen, are considered clinically safe.
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225
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Laureti M, Narayanan D, Rodriguez-Andres J, Fazakerley JK, Kedzierski L. Flavivirus Receptors: Diversity, Identity, and Cell Entry. Front Immunol 2018; 9:2180. [PMID: 30319635 PMCID: PMC6168832 DOI: 10.3389/fimmu.2018.02180] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 09/04/2018] [Indexed: 12/12/2022] Open
Abstract
Flaviviruses are emerging and re-emerging arthropod-borne pathogens responsible for significant mortality and morbidity worldwide. The genus comprises more than seventy small, positive-sense, single-stranded RNA viruses, which are responsible for a spectrum of human and animal diseases ranging in symptoms from mild, influenza-like infection to fatal encephalitis and haemorrhagic fever. Despite genomic and structural similarities across the genus, infections by different flaviviruses result in disparate clinical presentations. This review focusses on two haemorrhagic flaviviruses, dengue virus and yellow fever virus, and two neurotropic flaviviruses, Japanese encephalitis virus and Zika virus. We review current knowledge on host-pathogen interactions, virus entry strategies and tropism.
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Affiliation(s)
- Mathilde Laureti
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia.,Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - Divya Narayanan
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia.,Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - Julio Rodriguez-Andres
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia.,Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - John K Fazakerley
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia.,Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - Lukasz Kedzierski
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia.,Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Melbourne, VIC, Australia
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226
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Yockey LJ, Iwasaki A. Interferons and Proinflammatory Cytokines in Pregnancy and Fetal Development. Immunity 2018; 49:397-412. [PMID: 30231982 PMCID: PMC6152841 DOI: 10.1016/j.immuni.2018.07.017] [Citation(s) in RCA: 310] [Impact Index Per Article: 51.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 05/13/2018] [Accepted: 07/26/2018] [Indexed: 12/15/2022]
Abstract
Successful pregnancy requires carefully-coordinated communications between the mother and fetus. Immune cells and cytokine signaling pathways participate as mediators of these communications to promote healthy pregnancy. At the same time, certain infections or inflammatory conditions in pregnant mothers cause severe disease and have detrimental impacts on the developing fetus. In this review, we examine evidence for the role of maternal and fetal immune responses affecting pregnancy and fetal development, both under homeostasis and following infection. We discuss immune responses that are necessary to promote healthy pregnancy and those that lead to congenital disorders and pregnancy complications, with a particular emphasis on the role of interferons and cytokines. Understanding the contributions of the immune system in pregnancy and fetal development provides important insights into the pathogenesis underlying maternal and fetal diseases and sheds insights on possible targets for therapy.
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Affiliation(s)
- Laura J Yockey
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Akiko Iwasaki
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA.
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227
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Paul AM, Acharya D, Neupane B, Thompson EA, Gonzalez-Fernandez G, Copeland KM, Garrett M, Liu H, Lopez ME, de Cruz M, Flynt A, Liao J, Guo YL, Gonzalez-Fernandez F, Vig PJS, Bai F. Congenital Zika Virus Infection in Immunocompetent Mice Causes Postnatal Growth Impediment and Neurobehavioral Deficits. Front Microbiol 2018; 9:2028. [PMID: 30210488 PMCID: PMC6124374 DOI: 10.3389/fmicb.2018.02028] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 08/10/2018] [Indexed: 02/04/2023] Open
Abstract
A small percentage of babies born to Zika virus (ZIKV)-infected mothers manifest severe defects at birth, including microcephaly. Among those who appeared healthy at birth, there are increasing reports of postnatal growth or developmental defects. However, the impact of congenital ZIKV infection in postnatal development is poorly understood. Here, we report that a mild congenital ZIKV-infection in pups born to immunocompetent pregnant mice did not display apparent defects at birth, but manifested postnatal growth impediments and neurobehavioral deficits, which include reduced locomotor and cognitive deficits that persisted into adulthood. We found that the brains of these pups were smaller, had a thinner cortical layer 1, displayed increased astrogliosis, decreased expression of microcephaly- and neuron development- related genes, and increased pathology as compared to mock-infected controls. In summary, our results showed that even a mild congenital ZIKV infection in immunocompetent mice could lead to postnatal deficits, providing definitive experimental evidence for a necessity to closely monitor postnatal growth and development of presumably healthy human infants, whose mothers were exposed to ZIKV infection during pregnancy.
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Affiliation(s)
- Amber M. Paul
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, United States
| | - Dhiraj Acharya
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, United States
| | - Biswas Neupane
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, United States
| | - E. Ashely Thompson
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, United States
| | | | | | - Me’Lanae Garrett
- Department of Bioengineering, University of Texas, Arlington, TX, United States
| | - Haibei Liu
- Hattiesburg Clinic, Hattiesburg, MS, United States
| | - Mariper E. Lopez
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Matthew de Cruz
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, United States
| | - Alex Flynt
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, United States
| | - Jun Liao
- Department of Bioengineering, University of Texas, Arlington, TX, United States
| | - Yan-Lin Guo
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, United States
| | - Federico Gonzalez-Fernandez
- Medical Research Service, G.V. (Sonny) Montgomery Veterans Affairs Medical Center, Jackson, MS, United States
- Department of Ophthalmology and Pathology, University of Mississippi Medical Center, Jackson, MS, United States
- Pathrd, Inc.,Jackson, MS, United States
| | - Parminder J. S. Vig
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Fengwei Bai
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, United States
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228
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Heerema-McKenney A. Defense and infection of the human placenta. APMIS 2018; 126:570-588. [PMID: 30129129 DOI: 10.1111/apm.12847] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 04/22/2018] [Indexed: 12/14/2022]
Abstract
The placenta functions as a shield against infection of the fetus. The innate and adaptive immune defenses of the developing fetus are poorly equipped to fight infections. Infection by bacteria, viruses, and protozoa may cause infertility, spontaneous abortion, stillbirth, growth retardation, anomalies of development, premature delivery, neonatal morbidity, and mortality. However, appreciation of the human microbiome and host cell-microbe interactions must be taken into consideration as we try to determine what interactions are pathologic. Infection is typically recognized histologically by the presence of inflammation. Yet, several factors make comparison of the placenta to other human organs difficult. The placenta comprises tissues from two persons, complicating the role of the immune system. The placenta is a temporary organ. It must be eventually expelled; the processes leading to partuition involve maternal inflammation. What is normal or pathologic may be a function of timing or extent of the process. We now must consider whether bacteria, and even some viruses, are useful commensals or pathogens. Still, recognizing infection of the placenta is one of the most important contributions placental pathologic examination can give to care of the mother and neonate. This review provides a brief overview of placental defense against infection, consideration of the placental microbiome, routes of infection, and the histopathology of amniotic fluid infection and TORCH infections.
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Affiliation(s)
- Amy Heerema-McKenney
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
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229
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Zika virus infection of first-trimester human placentas: utility of an explant model of replication to evaluate correlates of immune protection ex vivo. Curr Opin Virol 2018; 27:48-56. [PMID: 29172071 DOI: 10.1016/j.coviro.2017.11.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 11/09/2017] [Indexed: 01/08/2023]
Abstract
The emergence of congenital Zika virus (ZIKV) disease, with its devastating effects on the fetus, has prompted development of vaccines and examination of how ZIKV breaches the maternal-fetal barrier. Infection of placental and decidual tissue explants has demonstrated cell types at the uterine-placental interface susceptible to infection and suggests routes for transmission across the placenta and amniochorionic membrane. ZIKV replicates in proliferating Hofbauer cells within chorionic villi in placentas from severe congenital infection. Explants of anchoring villi recapitulate placental architecture and early-stage development and suggest infected Hofbauer cells disseminate virus to fetal blood vessels. ZIKV infection of explants represents a surrogate human model for evaluating protection against transmission by antibodies in vaccine recipients and passive immune formulations and novel therapeutics.
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230
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An Update on Sexual Transmission of Zika Virus. Pathogens 2018; 7:pathogens7030066. [PMID: 30081445 PMCID: PMC6161238 DOI: 10.3390/pathogens7030066] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/02/2018] [Accepted: 08/01/2018] [Indexed: 02/06/2023] Open
Abstract
Zika virus (ZIKV) is a single-stranded RNA virus belonging to the arthropod-borne flaviviruses (arboviruses) which are mainly transmitted by blood-sucking mosquitoes of the genus Aedes. ZIKV infection has been known to be rather asymptomatic or presented as febrile self-limited disease; however, during the last decade the manifestation of ZIKV infection has been associated with a variety of neuroimmunological disorders including Guillain–Barré syndrome, microcephaly and other central nervous system abnormalities. More recently, there is accumulating evidence about sexual transmission of ZIKV, a trait that has never been observed in any other mosquito-borne flavivirus before. This article reviews the latest information regarding the latter and emerging role of ZIKV, focusing on the consequences of ZIKV infection on the male reproductive system and the epidemiology of human-to-human sexual transmission.
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231
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Bowen JR, Zimmerman MG, Suthar MS. Taking the defensive: Immune control of Zika virus infection. Virus Res 2018; 254:21-26. [PMID: 28867493 PMCID: PMC5832569 DOI: 10.1016/j.virusres.2017.08.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/26/2017] [Accepted: 08/28/2017] [Indexed: 02/06/2023]
Abstract
ZIKV is a neurotropic mosquito-borne flavivirus that has recently emerged in the Americas and is a pathogen of significant public health concern across the world. ZIKV was first isolated in Uganda in 1947 and remained dormant in Africa and Asia for decades, with sporadic outbreaks characterized by a mild self-limiting disease in humans. The emergence of ZIKV in the Americas corresponded with enhanced disease severity and congenital Zika syndrome, a phenotype characterized by severe microcephaly, brain anomalies, ocular anomalies, congenital contractures and neurological impairments. In less than two years, a collective effort led by the scientific research community has uncovered many new facets to the once rarely discussed ZIKV. In this review, we highlight the known immune parameters that correlate with protective immunity to ZIKV infection, including pattern recognition receptors, interferons, humoral and cell-mediated responses, as well as countermeasures utilized by ZIKV to inhibit host antiviral immune responses.
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Affiliation(s)
- James R Bowen
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA, 30322, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA, 30329, USA; Children's Healthcare of Atlanta, Atlanta, GA, 30322, USA
| | - Matthew G Zimmerman
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA, 30322, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA, 30329, USA; Children's Healthcare of Atlanta, Atlanta, GA, 30322, USA
| | - Mehul S Suthar
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA, 30322, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA, 30329, USA; Children's Healthcare of Atlanta, Atlanta, GA, 30322, USA.
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232
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Andrade DV, Harris E. Recent advances in understanding the adaptive immune response to Zika virus and the effect of previous flavivirus exposure. Virus Res 2018; 254:27-33. [PMID: 28655548 PMCID: PMC5743770 DOI: 10.1016/j.virusres.2017.06.019] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 11/30/2022]
Abstract
Zika virus (ZIKV) caused explosive epidemics across the Americas, starting in Brazil in 2015, and has been associated with severe manifestations such as microcephaly in babies born to infected mothers and Guillain-Barré syndrome in adults. As the underlying mechanisms of pathogenesis remain largely unknown, diverse investigations have focused on a potential role for flavivirus cross-reactive antibodies in enhancing ZIKV infection. Antibody-dependent enhancement is especially concerning due to structural similarities between ZIKV and other flaviviruses, especially dengue virus (DENV), that co-circulate in areas affected by ZIKV. Conversely, investigating cross-neutralizing antibodies is important for understanding protection among flaviviruses, including ZIKV. In this review, we discuss the latest findings regarding ZIKV-induced adaptive immunity, such as monoclonal and polyclonal antibody responses, structural immunology, and T cell-mediated responses. Much progress has been made in a short amount of time, but many questions remain. Fully understanding the specificity, magnitude, and kinetics of B cell/antibody and T cell responses in ZIKV-infected individuals with or without prior exposure to flaviviruses is of great relevance for diagnostics and vaccine development.
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Affiliation(s)
- Daniela V Andrade
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, United States
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, United States.
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233
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Abstract
Why certain viruses cross the physical barrier of the human placenta but others do not is incompletely understood. Over the past 20 years, we have gained deeper knowledge of intrauterine infection and routes of viral transmission. This review focuses on human viruses that replicate in the placenta, infect the fetus, and cause birth defects, including rubella virus, varicella-zoster virus, parvovirus B19, human cytomegalovirus (CMV), Zika virus (ZIKV), and hepatitis E virus type 1. Detailed discussions include ( a) the architecture of the uterine-placental interface, ( b) studies of placental explants ex vivo that provide insights into the infection and spread of CMV and ZIKV to the fetal compartment and how these viruses undermine early development, and ( c) novel treatments and vaccines that limit viral replication and have the potential to reduce dissemination, vertical transmission and the occurrence of congenital disease.
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Affiliation(s)
- Lenore Pereira
- Department of Cell and Tissue Biology, School of Dentistry, University of California, San Francisco, California 94143, USA;
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234
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Li M, Zhao L, Zhang C, Wang X, Hong W, Sun J, Liu R, Yu L, Wang J, Zhang F, Jin X. Dengue immune sera enhance Zika virus infection in human peripheral blood monocytes through Fc gamma receptors. PLoS One 2018; 13:e0200478. [PMID: 30044839 PMCID: PMC6059439 DOI: 10.1371/journal.pone.0200478] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 06/27/2018] [Indexed: 11/18/2022] Open
Abstract
Antibody dependent enhancement (ADE) has most often been associated with dengue virus (DENV). Studies using leukemia cell lines suggest that DENV specific antibodies can enhance Zika virus (ZIKV) infectivity, and vice versa. To examine the mechanisms of ADE of ZIKV infection in primary human cells, we assessed 40 serum samples obtained from convalescent DENV-1 or DENV-3 infected subjects. All sera tested exhibited high binding potency, while modest or none neutralization activities against ZIKV. Primary CD14+ monocytes, rather than B and T cells in peripheral blood mononuclear cells (PBMCs), were found to be the mediators of the enhancement of ZIKV infectivity by DENV immune sera. Monocyte-derived immature dendritic cells (DCs), but not mature DCs were highly permissive to ZIKV infection, whereas neither immature nor mature DCs could mediate enhanced ZIKV infection in the presence of DENV immune sera. In addition, antibody blocking of either FcγRI (CD64), or FcγRII (CD32), or FcγRIII (CD16) resulted in diminished ADE of ZIKV infection. Our findings provide an improved understanding of the pathogenesis of ZIKV infection, and inform rational vaccine design.
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Affiliation(s)
- Min Li
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences (CAS), Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lingzhai Zhao
- Guangzhou Eighth People’s Hospital, Guangzhou Medical University, Guangzhou, China
| | - Chao Zhang
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences (CAS), Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xin Wang
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences (CAS), Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Wenxin Hong
- Guangzhou Eighth People’s Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jin Sun
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Ran Liu
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Lei Yu
- Guangzhou Eighth People’s Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jianhua Wang
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Fuchun Zhang
- Guangzhou Eighth People’s Hospital, Guangzhou Medical University, Guangzhou, China
- * E-mail: (XJ); (FZ)
| | - Xia Jin
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences (CAS), Shanghai, China
- * E-mail: (XJ); (FZ)
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235
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Biomimetic Placenta-Fetus Model Demonstrating Maternal-Fetal Transmission and Fetal Neural Toxicity of Zika Virus. Ann Biomed Eng 2018; 46:1963-1974. [PMID: 30003503 DOI: 10.1007/s10439-018-2090-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 07/03/2018] [Indexed: 12/22/2022]
Abstract
Recent global epidemics of viral infection such as Zika virus (ZIKV) and associated birth defects from maternal-fetal viral transmission highlights the critical unmet need for experimental models that adequately recapitulates the biology of the human maternal-fetal interface and downstream fetal development. Herein, we report an in vitro biomimetic placenta-fetus model of the maternal-fetal interface and downstream fetal cells. Using a tissue engineering approach, we built a 3D model incorporating placental trophoblast and endothelial cells into an extracellular matrix environment and validated formation of the maternal-fetal interface. We utilized this model to study ZIKV exposure to the placenta and neural progenitor cells. Our results indicated ZIKV infects both trophoblast and endothelial cells, leading to a higher viral load exposed to fetal cells downstream of the barrier. Viral inhibition by chloroquine reduced the amount of virus both in the placenta and transmitted to fetal cells. A sustained downstream neural cell viability in contrast to significantly reduced viability in an acellular model indicates that the placenta sequesters ZIKV consistent with clinical observations. These findings suggest that the placenta can modulate ZIKV exposure-induced fetal damage. Moreover, such tissue models can enable rigorous assessment of potential therapeutics for maternal-fetal medicine.
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236
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Qadir A, Riaz M, Saeed M, Shahzad-Ul-Hussan S. Potential targets for therapeutic intervention and structure based vaccine design against Zika virus. Eur J Med Chem 2018; 156:444-460. [PMID: 30015077 DOI: 10.1016/j.ejmech.2018.07.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/28/2018] [Accepted: 07/06/2018] [Indexed: 01/01/2023]
Abstract
Continuously increasing number of reports of Zika virus (ZIKV) infections and associated severe clinical manifestations, including autoimmune abnormalities and neurological disorders such as neonatal microcephaly and Guillain-Barré syndrome have created alarming situation in various countries. To date, no specific antiviral therapy or vaccine is available against ZIKV. This review provides a comprehensive insight into the potential therapeutic targets and describes viral epitopes of broadly neutralizing antibodies (bNAbs) in vaccine design perspective. Interactions between ZIKV envelope glycoprotein E and cellular receptors mediate the viral fusion and entry to the target cell. Blocking these interactions by targeting cellular receptors or viral structural proteins mediating these interactions or viral surface glycans can inhibit viral entry to the cell. Similarly, different non-structural proteins of ZIKV and un-translated regions (UTRs) of its RNA play essential roles in viral replication cycle and potentiate for therapeutic interventions. Structure based vaccine design requires identity and structural description of the epitopes of bNAbs. We have described different conserved bNAb epitopes present in the ZIKV envelope as potential targets for structure based vaccine design. This review also highlights successes, unanswered questions and future perspectives in relation to therapeutic and vaccine development against ZIKV.
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Affiliation(s)
- Amina Qadir
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore, 54792, Pakistan
| | - Muhammad Riaz
- Department of Chemistry, University of Azad Jammu & Kashmir, Muzaffarabad, Pakistan
| | - Muhammad Saeed
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore, 54792, Pakistan.
| | - Syed Shahzad-Ul-Hussan
- Department of Biology, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore, 54792, Pakistan.
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237
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Sheridan MA, Balaraman V, Schust DJ, Ezashi T, Roberts RM, Franz AWE. African and Asian strains of Zika virus differ in their ability to infect and lyse primitive human placental trophoblast. PLoS One 2018; 13:e0200086. [PMID: 29985932 PMCID: PMC6037361 DOI: 10.1371/journal.pone.0200086] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 06/19/2018] [Indexed: 01/08/2023] Open
Abstract
Zika virus (ZIKV) drew worldwide attention when a recent epidemic was linked to fetal microcephaly. Here we used human embryonic stem cell derived trophoblasts as a model for primitive placental trophoblast to test the hypothesis that there are differences in how the two genetically distinct ZIKV lineages, African (AF) and Asian (AS), target the human placenta. Upon infection with three AF (ib-H30656, SEN/1984/41525-DAK, and MR-766) and three AS (FSS13025, MexI-44, and PANcdc259249) ZIKV strains, we observed that severe placental cell lysis was only induced after infection with AF strains, while viral replication rates remained similar between both lineages. Differences in cytopathic effects (CPE) were not observed in Vero cells, indicating that the AF strains were not inherently superior at cell lysis. Taken together, we propose that infection with AF strains of ZIKV early in pregnancy would likely result in pregnancy loss, rather than allow further fetal development with accompanying brain damage. Our results also suggest that the long term laboratory-adapted MR-766 strain does not behave aberrantly in cell culture relative to other AF lineage strains.
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Affiliation(s)
- Megan A. Sheridan
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
| | - Velmurugan Balaraman
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, United States of America
| | - Danny J. Schust
- Department of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, Missouri, United States of America
| | - Toshihiko Ezashi
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - R. Michael Roberts
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, United States of America
- Department of Biochemistry, University of Missouri, Columbia, Missouri, United States of America
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Alexander W. E. Franz
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, United States of America
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238
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Muffat J, Li Y, Omer A, Durbin A, Bosch I, Bakiasi G, Richards E, Meyer A, Gehrke L, Jaenisch R. Human induced pluripotent stem cell-derived glial cells and neural progenitors display divergent responses to Zika and dengue infections. Proc Natl Acad Sci U S A 2018; 115:7117-7122. [PMID: 29915057 PMCID: PMC6142255 DOI: 10.1073/pnas.1719266115] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Maternal Zika virus (ZIKV) infection during pregnancy is recognized as the cause of an epidemic of microcephaly and other neurological anomalies in human fetuses. It remains unclear how ZIKV accesses the highly vulnerable population of neural progenitors of the fetal central nervous system (CNS), and which cell types of the CNS may be viral reservoirs. In contrast, the related dengue virus (DENV) does not elicit teratogenicity. To model viral interaction with cells of the fetal CNS in vitro, we investigated the tropism of ZIKV and DENV for different induced pluripotent stem cell-derived human cells, with a particular focus on microglia-like cells. We show that ZIKV infected isogenic neural progenitors, astrocytes, and microglia-like cells (pMGLs), but was only cytotoxic to neural progenitors. Infected glial cells propagated ZIKV and maintained ZIKV load over time, leading to viral spread to susceptible cells. DENV triggered stronger immune responses and could be cleared by neural and glial cells more efficiently. pMGLs, when cocultured with neural spheroids, invaded the tissue and, when infected with ZIKV, initiated neural infection. Since microglia derive from primitive macrophages originating in proximity to the maternal vasculature, they may act as a viral reservoir for ZIKV and establish infection of the fetal brain. Infection of immature neural stem cells by invading microglia may occur in the early stages of pregnancy, before angiogenesis in the brain rudiments. Our data are also consistent with ZIKV and DENV affecting the integrity of the blood-brain barrier, thus allowing infection of the brain later in life.
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Affiliation(s)
- Julien Muffat
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142
| | - Yun Li
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142
| | - Attya Omer
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142
| | - Ann Durbin
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA 02139
| | - Irene Bosch
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA 02139
| | | | - Edward Richards
- Koch Institute for Integrative Cancer Research at MIT, Cambridge, MA 02139
| | - Aaron Meyer
- Koch Institute for Integrative Cancer Research at MIT, Cambridge, MA 02139
| | - Lee Gehrke
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA 02139
| | - Rudolf Jaenisch
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142;
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139
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239
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Chen J, Liang Y, Yi P, Xu L, Hawkins HK, Rossi SL, Soong L, Cai J, Menon R, Sun J. Outcomes of Congenital Zika Disease Depend on Timing of Infection and Maternal-Fetal Interferon Action. Cell Rep 2018; 21:1588-1599. [PMID: 29117563 DOI: 10.1016/j.celrep.2017.10.059] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/24/2017] [Accepted: 10/11/2017] [Indexed: 10/18/2022] Open
Abstract
Zika virus (ZIKV) infection during pregnancy in humans results in intrauterine growth restriction, spontaneous abortion, and microcephaly. Here, we found that fetus-derived type I interferon (IFN-I) signaling can enhance anti-ZIKV responses and provide clinical benefits to the fetus. Because IFN-λ shares signaling cascades and antiviral functions with IFN-I, we investigated the in vivo effects of IFN-λ in ZIKV-infected pregnant mice. IFN-λ administration during mid-pregnancy reduced ZIKV burden in maternal and fetal organs and alleviated placental injuries and fetal demise. In addition, prophylactic and therapeutic treatment of IFN-λ1 in a human trophoblast line, as well as in primary human amniotic epithelial cells, greatly reduced the ZIKV burden. Our data highlight IFN-λ1 as a potential therapeutic useful for women at risk for congenital Zika disease.
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Affiliation(s)
- Jinling Chen
- Department of Pathogen Biology, School of Medicine, Nantong University, Nantong, Jiangsu 226001, China, University of Texas Medical Branch, Galveston, TX 77555, USA; Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Yuejin Liang
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Panpan Yi
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Department of Infectious Diseases, Key Laboratory of Viral Hepatitis of Hunan, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Lanman Xu
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Department of Infectious Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Hal K Hawkins
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Shannan L Rossi
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Lynn Soong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Jiyang Cai
- Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Ramkumar Menon
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Jiaren Sun
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX 77555, USA.
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240
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Coffey LL, Keesler RI, Pesavento PA, Woolard K, Singapuri A, Watanabe J, Cruzen C, Christe KL, Usachenko J, Yee J, Heng VA, Bliss-Moreau E, Reader JR, von Morgenland W, Gibbons AM, Jackson K, Ardeshir A, Heimsath H, Permar S, Senthamaraikannan P, Presicce P, Kallapur SG, Linnen JM, Gao K, Orr R, MacGill T, McClure M, McFarland R, Morrison JH, Van Rompay KKA. Intraamniotic Zika virus inoculation of pregnant rhesus macaques produces fetal neurologic disease. Nat Commun 2018; 9:2414. [PMID: 29925843 PMCID: PMC6010452 DOI: 10.1038/s41467-018-04777-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 04/10/2018] [Indexed: 01/05/2023] Open
Abstract
Zika virus (ZIKV) infection of pregnant women can cause fetal microcephaly and other neurologic defects. We describe the development of a non-human primate model to better understand fetal pathogenesis. To reliably induce fetal infection at defined times, four pregnant rhesus macaques are inoculated intravenously and intraamniotically with ZIKV at gestational day (GD) 41, 50, 64, or 90, corresponding to first and second trimester of gestation. The GD41-inoculated animal, experiencing fetal death 7 days later, has high virus levels in fetal and placental tissues, implicating ZIKV as cause of death. The other three fetuses are carried to near term and euthanized; while none display gross microcephaly, all show ZIKV RNA in many tissues, especially in the brain, which exhibits calcifications and reduced neural precursor cells. Given that this model consistently recapitulates neurologic defects of human congenital Zika syndrome, it is highly relevant to unravel determinants of fetal neuropathogenesis and to explore interventions.
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Affiliation(s)
- Lark L Coffey
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA.
| | - Rebekah I Keesler
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Patricia A Pesavento
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Kevin Woolard
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Anil Singapuri
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Jennifer Watanabe
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Christina Cruzen
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Kari L Christe
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Jodie Usachenko
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - JoAnn Yee
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Victoria A Heng
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA.,Donders Institute, Radboud University, Montessorilaan 3, 6525 HR, Nijmegen, The Netherlands
| | - Eliza Bliss-Moreau
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA.,Department of Psychology, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - J Rachel Reader
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Wilhelm von Morgenland
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Anne M Gibbons
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Kenneth Jackson
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Amir Ardeshir
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Holly Heimsath
- Duke Human Vaccine Institute, Duke University Medical Center, 103020, 2 Genome Court MSRBII, Durham, NC, 27710, USA
| | - Sallie Permar
- Duke Human Vaccine Institute, Duke University Medical Center, 103020, 2 Genome Court MSRBII, Durham, NC, 27710, USA
| | - Paranthaman Senthamaraikannan
- Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA
| | - Pietro Presicce
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California, 10833 Le Conte Avenue, Los Angeles, CA, 90095, USA
| | - Suhas G Kallapur
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California, 10833 Le Conte Avenue, Los Angeles, CA, 90095, USA
| | - Jeffrey M Linnen
- Grifols Diagnostic Solutions, Inc., 10808 Willow Court, San Diego, CA, 92127, USA
| | - Kui Gao
- Grifols Diagnostic Solutions, Inc., 10808 Willow Court, San Diego, CA, 92127, USA
| | - Robert Orr
- Office of Counterterrorism and Emerging Threats, Office of the Chief Scientist, Food and Drug Administration, 25 New Hampshire Avenue, Silver Spring, MD, 20903, USA
| | - Tracy MacGill
- Office of Counterterrorism and Emerging Threats, Office of the Chief Scientist, Food and Drug Administration, 25 New Hampshire Avenue, Silver Spring, MD, 20903, USA
| | - Michelle McClure
- Office of Tissues and Advanced Therapies, Center for Biologics Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20903, USA
| | - Richard McFarland
- The Advanced Regenerative Manufacturing Institute, 400 Commercial Street, Manchester, NH, 03101, USA
| | - John H Morrison
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Koen K A Van Rompay
- California National Primate Research Center, University of California, 1 Shields Avenue, Davis, CA, 95616, USA.
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241
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Watanabe M, Buth JE, Vishlaghi N, de la Torre-Ubieta L, Taxidis J, Khakh BS, Coppola G, Pearson CA, Yamauchi K, Gong D, Dai X, Damoiseaux R, Aliyari R, Liebscher S, Schenke-Layland K, Caneda C, Huang EJ, Zhang Y, Cheng G, Geschwind DH, Golshani P, Sun R, Novitch BG. Self-Organized Cerebral Organoids with Human-Specific Features Predict Effective Drugs to Combat Zika Virus Infection. Cell Rep 2018; 21:517-532. [PMID: 29020636 DOI: 10.1016/j.celrep.2017.09.047] [Citation(s) in RCA: 251] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 08/01/2017] [Accepted: 09/14/2017] [Indexed: 12/21/2022] Open
Abstract
The human cerebral cortex possesses distinct structural and functional features that are not found in the lower species traditionally used to model brain development and disease. Accordingly, considerable attention has been placed on the development of methods to direct pluripotent stem cells to form human brain-like structures termed organoids. However, many organoid differentiation protocols are inefficient and display marked variability in their ability to recapitulate the three-dimensional architecture and course of neurogenesis in the developing human brain. Here, we describe optimized organoid culture methods that efficiently and reliably produce cortical and basal ganglia structures similar to those in the human fetal brain in vivo. Neurons within the organoids are functional and exhibit network-like activities. We further demonstrate the utility of this organoid system for modeling the teratogenic effects of Zika virus on the developing brain and identifying more susceptibility receptors and therapeutic compounds that can mitigate its destructive actions.
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Affiliation(s)
- Momoko Watanabe
- Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jessie E Buth
- Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Neda Vishlaghi
- Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Luis de la Torre-Ubieta
- Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Center for Autism Research and Treatment and Program in Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Neurology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jiannis Taxidis
- Department of Neurology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Baljit S Khakh
- Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Physiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Giovanni Coppola
- Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Center for Autism Research and Treatment and Program in Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Neurology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Caroline A Pearson
- Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ken Yamauchi
- Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Danyang Gong
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xinghong Dai
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Robert Damoiseaux
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Roghiyh Aliyari
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Simone Liebscher
- Department of Women's Health, Research Institute for Women's Health, Eberhard Karls University Tübingen, 72076 Tübingen, Germany
| | - Katja Schenke-Layland
- Department of Cardiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Women's Health, Research Institute for Women's Health, Eberhard Karls University Tübingen, 72076 Tübingen, Germany; Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology, 70569 Stuttgart, Germany
| | - Christine Caneda
- Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Eric J Huang
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Ye Zhang
- Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Genhong Cheng
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Daniel H Geschwind
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Center for Autism Research and Treatment and Program in Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Neurology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Human Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Peyman Golshani
- Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Center for Autism Research and Treatment and Program in Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Neurology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ren Sun
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Bennett G Novitch
- Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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242
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Ribeiro MR, Moreli JB, Marques RE, Papa MP, Meuren LM, Rahal P, de Arruda LB, Oliani AH, Oliani DCMV, Oliani SM, Narayanan A, Nogueira ML. Zika-virus-infected human full-term placental explants display pro-inflammatory responses and undergo apoptosis. Arch Virol 2018; 163:2687-2699. [PMID: 29876782 DOI: 10.1007/s00705-018-3911-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 05/31/2018] [Indexed: 12/14/2022]
Abstract
Zika virus (ZIKV) is a flavivirus that has been highly correlated with the development of neurological disorders and other malformations in newborns and stillborn fetuses after congenital infection. This association is supported by the presence of ZIKV in the fetal brain and amniotic fluid, and findings suggest that infection of the placental barrier is a critical step for fetal ZIKV infection in utero. Therefore, relevant models to investigate the interaction between ZIKV and placental tissues are essential for understanding the pathogenesis of Zika syndrome. In this report, we demonstrate that explant tissue from full-term human placentas sustains a productive ZIKV infection, though the results depend on the strain. Viral infection was found to be associated with pro-inflammatory cytokine expression and apoptosis of the infected tissue, and these findings confirm that placental explants are targets of ZIKV replication. We propose that human placental explants are useful as a model for studying ZIKV infection ex vivo.
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Affiliation(s)
- Milene Rocha Ribeiro
- Department of Biology, School of Biosciences, Humanities and the Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil.,Virology Research Laboratory, Department of Dermatological, Infectious, and Parasitic Diseases, São José do Rio Preto School of Medicine (FAMERP), São José do Rio Preto, São Paulo, Brazil
| | | | - Rafael Elias Marques
- Brazilian Biosciences National Laboratory (LNBio), National Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Michelle Premazzi Papa
- Paulo de Góes Department of Microbiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Lana Monteiro Meuren
- Paulo de Góes Department of Microbiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Paula Rahal
- Department of Biology, School of Biosciences, Humanities and the Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil
| | - Luciana Barros de Arruda
- Paulo de Góes Department of Microbiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Antonio Helio Oliani
- Virology Research Laboratory, Department of Dermatological, Infectious, and Parasitic Diseases, São José do Rio Preto School of Medicine (FAMERP), São José do Rio Preto, São Paulo, Brazil
| | - Denise Cristina Mós Vaz Oliani
- Virology Research Laboratory, Department of Dermatological, Infectious, and Parasitic Diseases, São José do Rio Preto School of Medicine (FAMERP), São José do Rio Preto, São Paulo, Brazil
| | - Sonia Maria Oliani
- Department of Biology, School of Biosciences, Humanities and the Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil
| | | | - Maurício Lacerda Nogueira
- Virology Research Laboratory, Department of Dermatological, Infectious, and Parasitic Diseases, São José do Rio Preto School of Medicine (FAMERP), São José do Rio Preto, São Paulo, Brazil.
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243
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Weilg C, Troyes L, Villegas Z, Silva-Caso W, Mazulis F, Febres A, Troyes M, Aguilar-Luis MA, Del Valle-Mendoza J. Detection of Zika virus infection among asymptomatic pregnant women in the North of Peru. BMC Res Notes 2018; 11:311. [PMID: 29776426 PMCID: PMC5960167 DOI: 10.1186/s13104-018-3400-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 05/03/2018] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE To report an outbreak of ZIKV infection among asymptomatic pregnant women during 2016 in the city of Jaen, Cajamarca. RESULTS Zika virus RNA was detected in 3.2% (n = 36) of cases by RT-PCR. The mean age of patients positive for ZIKV infection was 29.6 years. 7 patients (19.4%) infected with ZIKV were in their first-trimester of gestation, 13 (36.1%) were in their second-trimester, and 16 (44%) were in their third-trimester. All of the infected pregnant women were asymptomatic. ZIKV infection remains a major public health issue that calls for constant epidemiological surveillance. It can cause the congenital Zika virus syndrome in the newborns of infected mothers. The lack of molecular diagnostic methods in isolated localities and the similarity of symptoms to other arboviral infections, lead to an under-diagnosis of this disease in endemic areas.
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Affiliation(s)
- Claudia Weilg
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos Cuadra 2, Chorrillos, Lima, Peru.,Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Lucinda Troyes
- Dirección Subregional de Salud de Jaén, Ministerio de Salud, Cajamarca, Peru
| | - Zoila Villegas
- Dirección Subregional de Salud de Jaén, Ministerio de Salud, Cajamarca, Peru
| | - Wilmer Silva-Caso
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos Cuadra 2, Chorrillos, Lima, Peru.,Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Fernando Mazulis
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos Cuadra 2, Chorrillos, Lima, Peru.,Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru
| | - Ammy Febres
- Dirección Subregional de Salud de Jaén, Ministerio de Salud, Cajamarca, Peru
| | - Mario Troyes
- Dirección Subregional de Salud de Jaén, Ministerio de Salud, Cajamarca, Peru
| | - Miguel Angel Aguilar-Luis
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos Cuadra 2, Chorrillos, Lima, Peru. .,Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru. .,Instituto de Investigación de Enfermedades Infecciosas, Lima, Peru.
| | - Juana Del Valle-Mendoza
- School of Medicine, Research and Innovation Centre of the Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Av. San Marcos Cuadra 2, Chorrillos, Lima, Peru. .,Laboratorio de Biología Molecular, Instituto de Investigación Nutricional, Lima, Peru.
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244
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Rabelo K, Souza LJ, Salomão NG, Oliveira ERA, Sentinelli LDP, Lacerda MS, Saraquino PB, Rosman FC, Basílio-de-Oliveira R, Carvalho JJ, Paes MV. Placental Inflammation and Fetal Injury in a Rare Zika Case Associated With Guillain-Barré Syndrome and Abortion. Front Microbiol 2018; 9:1018. [PMID: 29867903 PMCID: PMC5964188 DOI: 10.3389/fmicb.2018.01018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 04/30/2018] [Indexed: 01/08/2023] Open
Abstract
Zika virus (ZIKV) is an emerging virus involved in recent outbreaks in Brazil. The association between the virus and Guillain-Barré syndrome (GBS) or congenital disorders has raised a worldwide concern. In this work, we investigated a rare Zika case, which was associated with GBS and spontaneous retained abortion. Using specific anti-ZIKV staining, the virus was identified in placenta (mainly in Hofbauer cells) and in several fetal tissues, such as brain, lungs, kidneys, skin and liver. Histological analyses of the placenta and fetal organs revealed different types of tissue abnormalities, which included inflammation, hemorrhage, edema and necrosis in placenta, as well as tissue disorganization in the fetus. Increased cellularity (Hofbauer cells and TCD8+ lymphocytes), expression of local pro-inflammatory cytokines such as IFN-γ and TNF-α, and other markers, such as RANTES/CCL5 and VEGFR2, supported placental inflammation and dysfunction. The commitment of the maternal-fetal link in association with fetal damage gave rise to a discussion regarding the influence of the maternal immunity toward the fetal development. Findings presented in this work may help understanding the ZIKV immunopathogenesis under the rare contexts of spontaneous abortions in association with GBS.
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Affiliation(s)
- Kíssila Rabelo
- Laboratório de Ultraestrutura e Biologia Tecidual, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiz J Souza
- Faculdade de Medicina de Campos, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Natália G Salomão
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Edson R A Oliveira
- Laboratório de Modelagem Molecular, Instituto de Química Orgânica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Marcelle S Lacerda
- Faculdade de Medicina de Campos, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Pedro B Saraquino
- Faculdade de Medicina de Campos, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Fernando C Rosman
- Anatomia Patológica, Hospital Municipal Jesus, Rio de Janeiro, Brazil
| | | | - Jorge J Carvalho
- Laboratório de Ultraestrutura e Biologia Tecidual, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marciano V Paes
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
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245
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Robinson N, Mayorquin Galvan EE, Zavala Trujillo IG, Zavala-Cerna MG. Congenital Zika syndrome: Pitfalls in the placental barrier. Rev Med Virol 2018; 28:e1985. [PMID: 29761581 DOI: 10.1002/rmv.1985] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 01/13/2023]
Abstract
Much progress with respect to congenital Zika virus (ZIKV) pathogenesis has been achieved after the 2015 outbreak in Brazil. It is now accepted that ZIKV is vertically transmitted, infects cells of the developing central nervous system and the placenta, yet it is unclear to what extent placental affection contributes to the development of congenital ZIKV. The association between fulminant villitis and severe fetal involvement emerges as a possibility. ZIKV is unique among the Flaviviruses in its ability to be sexually transmitted, possibly responsible for its teratogenicity. Furthermore, there is controversy over the participation of antibody dependent enhancement (ADE) in patients with non-neutralizing anti-Flavivirus antibodies, a phenomenon previously recognized in serious DENV infections. Our aim was to analyze information regarding the contribution of the placental barrier as an actual player in neonatal ZIKV. Therefore, we underwent a systematic review with keywords "Zika virus" and "ZIKV". Articles were screened for relevance concerning the topics of microcephaly, transplacental transmission, sexual transmission, and ADE. We identified variables that affect the severity of congenital Zika syndrome: age of gestation at maternal infection, the extent of placental disruption (villitis), sexual transmission, initial viral replication at the uterine wall, anti-DENV antibodies, and the possibility of antibody-mediated transcytosis of ZIKV through the placenta. These questions may not seem relevant when Zika becomes endemic, and we are no longer witness to the extreme clinical sequelae seen when the virus moves through an immunologically naïve population; however, characterizing the pathogenesis of congenital Zika syndrome will continue to further our understanding.
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Affiliation(s)
- Nia Robinson
- International Program of Medicine, Universidad Autonoma de Guadalajara, Zapopan, Mexico
| | - Evangelina E Mayorquin Galvan
- Immunology Research Laboratory, International Program of Medicine, Universidad Autónoma de Guadalajara, Zapopan, Mexico
| | - Isidro G Zavala Trujillo
- Infectious Diseases Division, Hospital Dr. Angel Leaño, Universidad Autonoma de Guadalajara, Zapopan, Mexico
| | - Maria G Zavala-Cerna
- Immunology Research Laboratory, International Program of Medicine, Universidad Autónoma de Guadalajara, Zapopan, Mexico
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246
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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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247
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Challenger Treats Zika Virus. CURRENT TREATMENT OPTIONS IN INFECTIOUS DISEASES 2018. [DOI: 10.1007/s40506-018-0160-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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248
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Lee I, Bos S, Li G, Wang S, Gadea G, Desprès P, Zhao RY. Probing Molecular Insights into Zika Virus⁻Host Interactions. Viruses 2018; 10:v10050233. [PMID: 29724036 PMCID: PMC5977226 DOI: 10.3390/v10050233] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 04/26/2018] [Accepted: 04/28/2018] [Indexed: 12/13/2022] Open
Abstract
The recent Zika virus (ZIKV) outbreak in the Americas surprised all of us because of its rapid spread and association with neurologic disorders including fetal microcephaly, brain and ocular anomalies, and Guillain–Barré syndrome. In response to this global health crisis, unprecedented and world-wide efforts are taking place to study the ZIKV-related human diseases. Much has been learned about this virus in the areas of epidemiology, genetic diversity, protein structures, and clinical manifestations, such as consequences of ZIKV infection on fetal brain development. However, progress on understanding the molecular mechanism underlying ZIKV-associated neurologic disorders remains elusive. To date, we still lack a good understanding of; (1) what virologic factors are involved in the ZIKV-associated human diseases; (2) which ZIKV protein(s) contributes to the enhanced viral pathogenicity; and (3) how do the newly adapted and pandemic ZIKV strains alter their interactions with the host cells leading to neurologic defects? The goal of this review is to explore the molecular insights into the ZIKV–host interactions with an emphasis on host cell receptor usage for viral entry, cell innate immunity to ZIKV, and the ability of ZIKV to subvert antiviral responses and to cause cytopathic effects. We hope this literature review will inspire additional molecular studies focusing on ZIKV–host Interactions.
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Affiliation(s)
- Ina Lee
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Sandra Bos
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, 94791 Sainte Clotilde, La Réunion, France.
| | - Ge Li
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Shusheng Wang
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Gilles Gadea
- Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, 94791 Sainte Clotilde, La Réunion, France.
| | - Philippe Desprès
- Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, 94791 Sainte Clotilde, La Réunion, France.
| | - Richard Y Zhao
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Institute of Global Health, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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249
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Seferovic M, Sánchez-San Martín C, Tardif SD, Rutherford J, Castro ECC, Li T, Hodara VL, Parodi LM, Giavedoni L, Layne-Colon D, Tamhankar M, Yagi S, Martyn C, Reyes K, Suter MA, Aagaard KM, Chiu CY, Patterson JL. Experimental Zika Virus Infection in the Pregnant Common Marmoset Induces Spontaneous Fetal Loss and Neurodevelopmental Abnormalities. Sci Rep 2018; 8:6851. [PMID: 29717225 PMCID: PMC5931554 DOI: 10.1038/s41598-018-25205-1] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 04/17/2018] [Indexed: 11/28/2022] Open
Abstract
During its most recent outbreak across the Americas, Zika virus (ZIKV) was surprisingly shown to cause fetal loss and congenital malformations in acutely and chronically infected pregnant women. However, understanding the underlying pathogenesis of ZIKV congenital disease has been hampered by a lack of relevant in vivo experimental models. Here we present a candidate New World monkey model of ZIKV infection in pregnant marmosets that faithfully recapitulates human disease. ZIKV inoculation at the human-equivalent of early gestation caused an asymptomatic seroconversion, induction of type I/II interferon-associated genes and proinflammatory cytokines, and persistent viremia and viruria. Spontaneous pregnancy loss was observed 16-18 days post-infection, with extensive active placental viral replication and fetal neurocellular disorganization similar to that seen in humans. These findings underscore the key role of the placenta as a conduit for fetal infection, and demonstrate the utility of marmosets as a highly relevant model for studying congenital ZIKV disease and pregnancy loss.
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Affiliation(s)
- Maxim Seferovic
- Departments of Obstetrics and Gynecology, Molecular and Human Genetics, and Pathology and Laboratory Medicine at Baylor College of Medicine and Texas Children's Hospital, Houston, TX, 77030, USA
| | | | - Suzette D Tardif
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA
| | - Julienne Rutherford
- Department of Women, Children and Family Health Science, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Eumenia C C Castro
- Departments of Obstetrics and Gynecology, Molecular and Human Genetics, and Pathology and Laboratory Medicine at Baylor College of Medicine and Texas Children's Hospital, Houston, TX, 77030, USA
| | - Tony Li
- Department of Laboratory Medicine, University of California, San Francisco, CA, 94143, USA
| | - Vida L Hodara
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA
- Department of Virology and Immunology, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA
| | - Laura M Parodi
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA
- Department of Virology and Immunology, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA
| | - Luis Giavedoni
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA
- Department of Virology and Immunology, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA
| | - Donna Layne-Colon
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA
| | - Manasi Tamhankar
- Department of Virology and Immunology, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA
| | - Shigeo Yagi
- California Department of Public Health, Richmond, CA, 94804, USA
| | - Calla Martyn
- Department of Laboratory Medicine, University of California, San Francisco, CA, 94143, USA
| | - Kevin Reyes
- Department of Laboratory Medicine, University of California, San Francisco, CA, 94143, USA
| | - Melissa A Suter
- Departments of Obstetrics and Gynecology, Molecular and Human Genetics, and Pathology and Laboratory Medicine at Baylor College of Medicine and Texas Children's Hospital, Houston, TX, 77030, USA
| | - Kjersti M Aagaard
- Departments of Obstetrics and Gynecology, Molecular and Human Genetics, and Pathology and Laboratory Medicine at Baylor College of Medicine and Texas Children's Hospital, Houston, TX, 77030, USA.
| | - Charles Y Chiu
- Department of Laboratory Medicine, University of California, San Francisco, CA, 94143, USA.
- Department of Medicine/Infectious Diseases, University of California, San Francisco, CA, 94143, USA.
| | - Jean L Patterson
- Department of Virology and Immunology, Texas Biomedical Research Institute, San Antonio, TX, 78245, USA.
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250
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Barrows NJ, Campos RK, Liao KC, Prasanth KR, Soto-Acosta R, Yeh SC, Schott-Lerner G, Pompon J, Sessions OM, Bradrick SS, Garcia-Blanco MA. Biochemistry and Molecular Biology of Flaviviruses. Chem Rev 2018; 118:4448-4482. [PMID: 29652486 DOI: 10.1021/acs.chemrev.7b00719] [Citation(s) in RCA: 193] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Flaviviruses, such as dengue, Japanese encephalitis, tick-borne encephalitis, West Nile, yellow fever, and Zika viruses, are critically important human pathogens that sicken a staggeringly high number of humans every year. Most of these pathogens are transmitted by mosquitos, and not surprisingly, as the earth warms and human populations grow and move, their geographic reach is increasing. Flaviviruses are simple RNA-protein machines that carry out protein synthesis, genome replication, and virion packaging in close association with cellular lipid membranes. In this review, we examine the molecular biology of flaviviruses touching on the structure and function of viral components and how these interact with host factors. The latter are functionally divided into pro-viral and antiviral factors, both of which, not surprisingly, include many RNA binding proteins. In the interface between the virus and the hosts we highlight the role of a noncoding RNA produced by flaviviruses to impair antiviral host immune responses. Throughout the review, we highlight areas of intense investigation, or a need for it, and potential targets and tools to consider in the important battle against pathogenic flaviviruses.
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Affiliation(s)
- Nicholas J Barrows
- Department of Biochemistry and Molecular Biology , University of Texas Medical Branch , Galveston , Texas 77555 , United States.,Department of Molecular Genetics and Microbiology , Duke University , Durham , North Carolina 27710 , United States
| | - Rafael K Campos
- Department of Biochemistry and Molecular Biology , University of Texas Medical Branch , Galveston , Texas 77555 , United States.,Department of Molecular Genetics and Microbiology , Duke University , Durham , North Carolina 27710 , United States
| | - Kuo-Chieh Liao
- Programme in Emerging Infectious Diseases , Duke-NUS Medical School , Singapore 169857 , Singapore
| | - K Reddisiva Prasanth
- Department of Biochemistry and Molecular Biology , University of Texas Medical Branch , Galveston , Texas 77555 , United States
| | - Ruben Soto-Acosta
- Department of Biochemistry and Molecular Biology , University of Texas Medical Branch , Galveston , Texas 77555 , United States
| | - Shih-Chia Yeh
- Programme in Emerging Infectious Diseases , Duke-NUS Medical School , Singapore 169857 , Singapore
| | - Geraldine Schott-Lerner
- Department of Biochemistry and Molecular Biology , University of Texas Medical Branch , Galveston , Texas 77555 , United States
| | - Julien Pompon
- Programme in Emerging Infectious Diseases , Duke-NUS Medical School , Singapore 169857 , Singapore.,MIVEGEC, IRD, CNRS, Université de Montpellier , Montpellier 34090 , France
| | - October M Sessions
- Programme in Emerging Infectious Diseases , Duke-NUS Medical School , Singapore 169857 , Singapore
| | - Shelton S Bradrick
- Department of Biochemistry and Molecular Biology , University of Texas Medical Branch , Galveston , Texas 77555 , United States
| | - Mariano A Garcia-Blanco
- Department of Biochemistry and Molecular Biology , University of Texas Medical Branch , Galveston , Texas 77555 , United States.,Programme in Emerging Infectious Diseases , Duke-NUS Medical School , Singapore 169857 , Singapore
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