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Khan T, Whyte JJ, Schulz LC, Roberts RM. Fluorescence-activated nuclear sorting (FANS) of nuclei from in vitro-generated syncytiotrophoblast. Placenta 2024:S0143-4004(24)00275-3. [PMID: 38944560 DOI: 10.1016/j.placenta.2024.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 06/10/2024] [Indexed: 07/01/2024]
Abstract
Large, multinucleated cells, like syncytiotrophoblasts (STB), are not readily analyzed by standard methods used for single cells, such as single-cell RNA-sequencing and fluorescence-activated cellular sorting (FACS). Here we have demonstrated that fluorescence-activated nuclear sorting (FANS) is suitable to analyze nuclei from STB. Human pluripotent stem cells (PSCs) can be differentiated into a mixed trophoblast populations comprising approximately 20 % STB by treatment with BMP4 (Bone Morphogenetic Protein-4), plus A83-01 and PD173074, inhibitors of activin and FGF2 signaling, respectively (the BAP model) in about a week. Here we demonstrate that FANS can be used to separate two types of STB nuclei from the nine different clusters of trophoblast nuclei previously identified in the BAP model by single nucleus RNA sequencing (snRNAseq). Rather than using cell surface markers, as in FACS, transcription factors in various combinations were employed to target specific nuclear types. Nuclei were isolated at d 8 of BAP differentiation of H1 human embryonic stem cells and fixed in 4 % paraformaldehyde. After permeabilization in 0.1 % triton X-100, nuclei were incubated for 3 and 1 h at 4 °C with primary and secondary antibodies respectively and nuclear samples were then subjected to FANS. By using markers identified by snRNA and immunohistochemistry, nuclei were first sorted into a Topoisomerase-1, or TOP1, bright population and then into the two STB subpopulations by using antibodies to JUNB (Jun B Proto-Oncogene) and TFCP2L1 (Transcription Factor CP2 Like 1). The protocol established here is simple, straightforward, and efficient and can be used on a relatively large scale to sort individual subtypes of nuclei from mixed populations of trophoblasts for further analysis.
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Affiliation(s)
- Teka Khan
- Department of Obstetrics, Gynecology, and Women's Health, School of Medicine, University of Missouri, Columbia, MO, United States; Division of Animal Sciences, University of Missouri, Columbia, MO, United States
| | - Jeffrey J Whyte
- Laboratory for Infectious Disease Research (LIDR), Division of Research, Innovation and Impact, University of Missouri, Columbia, MO, United States
| | - Laura C Schulz
- Department of Obstetrics, Gynecology, and Women's Health, School of Medicine, University of Missouri, Columbia, MO, United States
| | - R Michael Roberts
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States.
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2
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Song GY, Huang XY, He MJ, Zhou HY, Li RT, Tian Y, Wang Y, Cheng ML, Chen X, Zhang RR, Zhou C, Zhou J, Fang XY, Li XF, Qin CF. A single amino acid substitution in the capsid protein of Zika virus contributes to a neurovirulent phenotype. Nat Commun 2023; 14:6832. [PMID: 37884553 PMCID: PMC10603150 DOI: 10.1038/s41467-023-42676-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
Increasing evidence shows the African lineage Zika virus (ZIKV) displays a more severe neurovirulence compared to the Asian ZIKV. However, viral determinants and the underlying mechanisms of enhanced virulence phenotype remain largely unknown. Herein, we identify a panel of amino acid substitutions that are unique to the African lineage of ZIKVs compared to the Asian lineage by phylogenetic analysis and sequence alignment. We then utilize reverse genetic technology to generate recombinant ZIKVs incorporating these lineage-specific substitutions based on an infectious cDNA clone of Asian ZIKV. Through in vitro characterization, we discover a mutant virus with a lysine to arginine substitution at position 101 of capsid (C) protein (termed K101R) displays a larger plaque phenotype, and replicates more efficiently in various cell lines. Moreover, K101R replicates more efficiently in mouse brains and induces stronger inflammatory responses than the wild type (WT) virus in neonatal mice. Finally, a combined analysis reveals the K101R substitution promotes the production of mature C protein without affecting its binding to viral RNA. Our study identifies the role of K101R substitution in the C protein in contributing to the enhanced virulent phenotype of the African lineage ZIKV, which expands our understanding of the complexity of ZIKV proteins.
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Affiliation(s)
- Guang-Yuan Song
- School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, Anhui, China
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Xing-Yao Huang
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Meng-Jiao He
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Hang-Yu Zhou
- Suzhou Institute of System Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, 215123, Suzhou, Jiangsu, China
| | - Rui-Ting Li
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Ying Tian
- School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, Anhui, China
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Yan Wang
- Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, 100084, Beijing, China
| | - Meng-Li Cheng
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Xiang Chen
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Rong-Rong Zhang
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Chao Zhou
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Jia Zhou
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Xian-Yang Fang
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, 100101, Beijing, China
| | - Xiao-Feng Li
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China.
| | - Cheng-Feng Qin
- School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, Anhui, China.
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China.
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3
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Bayandin RB, Makenov MT, Boumbaly S, Stukolova OA, Gladysheva AV, Shipovalov AV, Skarnovich MO, Camara O, Toure AH, Svyatchenko VA, Shvalov AN, Ternovoi VA, Boiro MY, Agafonov AP, Karan LS. The First Case of Zika Virus Disease in Guinea: Description, Virus Isolation, Sequencing, and Seroprevalence in Local Population. Viruses 2023; 15:1620. [PMID: 37631963 PMCID: PMC10459603 DOI: 10.3390/v15081620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/29/2023] Open
Abstract
The Zika virus (ZIKV) is a widespread mosquito-borne pathogen. Phylogenetically, two lineages of ZIKV are distinguished: African and Asian-American. The latter became the cause of the 2015-2016 pandemic, with severe consequences for newborns. In West African countries, the African lineage was found, but there is evidence of the emergence of the Asian-American lineage in Cape Verde and Angola. This highlights the need to not only monitor ZIKV but also sequence the isolates. In this article, we present a case report of Zika fever in a pregnant woman from Guinea identified in 2018. Viral RNA was detected through qRT-PCR in a serum sample. In addition, the seroconversion of anti-Zika IgM and IgG antibodies was detected in repeated blood samples. Subsequently, the virus was isolated from the C6/36 cell line. The detected ZIKV belonged to the African lineage, the Nigerian sublineage. The strains with the closest sequences were isolated from mosquitoes in Senegal in 2011 and 2015. In addition, we conducted the serological screening of 116 blood samples collected from patients presenting to the hospital of Faranah with fevers during the period 2018-2021. As a result, it was found that IgM-positive patients were identified each year and that the seroprevalence varied between 5.6% and 17.1%.
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Affiliation(s)
- Roman B. Bayandin
- State Research Center of Virology and Biotechnology «Vector», 630559 Kol’tsovo, Novosibirsk Oblast, Russia (M.O.S.)
| | - Marat T. Makenov
- Central Research Institute of Epidemiology, Novogireevskaya St. 3A, 111123 Moscow, Russia
| | - Sanaba Boumbaly
- Virology Research Center/Laboratory of Viral Hemorrhagic Fevers, Conakry, Guinea
| | - Olga A. Stukolova
- Central Research Institute of Epidemiology, Novogireevskaya St. 3A, 111123 Moscow, Russia
| | - Anastasia V. Gladysheva
- State Research Center of Virology and Biotechnology «Vector», 630559 Kol’tsovo, Novosibirsk Oblast, Russia (M.O.S.)
| | - Andrey V. Shipovalov
- State Research Center of Virology and Biotechnology «Vector», 630559 Kol’tsovo, Novosibirsk Oblast, Russia (M.O.S.)
| | - Maksim O. Skarnovich
- State Research Center of Virology and Biotechnology «Vector», 630559 Kol’tsovo, Novosibirsk Oblast, Russia (M.O.S.)
| | | | - Aboubacar Hady Toure
- Research Institute of Applied Biology of Guinea, Pastoria, CREMS, Kindia, Guinea
| | - Victor A. Svyatchenko
- State Research Center of Virology and Biotechnology «Vector», 630559 Kol’tsovo, Novosibirsk Oblast, Russia (M.O.S.)
| | - Alexander N. Shvalov
- State Research Center of Virology and Biotechnology «Vector», 630559 Kol’tsovo, Novosibirsk Oblast, Russia (M.O.S.)
| | - Vladimir A. Ternovoi
- State Research Center of Virology and Biotechnology «Vector», 630559 Kol’tsovo, Novosibirsk Oblast, Russia (M.O.S.)
| | - Mamadou Y. Boiro
- Research Institute of Applied Biology of Guinea, Pastoria, CREMS, Kindia, Guinea
| | - Alexander P. Agafonov
- State Research Center of Virology and Biotechnology «Vector», 630559 Kol’tsovo, Novosibirsk Oblast, Russia (M.O.S.)
| | - Lyudmila S. Karan
- Central Research Institute of Epidemiology, Novogireevskaya St. 3A, 111123 Moscow, Russia
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4
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Barbosa MD, Costa A, Prieto-Oliveira P, Andreata-Santos R, Peter CM, Zanotto PMA, Janini LMR. Proposal of Model for Evaluation of Viral Kinetics of African/Asian/Brazilian- Zika virus Strains (Step Growth Curve) in Trophoblastic Cell Lines. Viruses 2023; 15:1446. [PMID: 37515134 PMCID: PMC10386092 DOI: 10.3390/v15071446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/13/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
The Zika virus (ZIKV) epidemic brought new discoveries regarding arboviruses, especially flaviviruses, as ZIKV was described as sexually and vertically transmitted. The latter shows severe consequences for the embryo/fetus, such as congenital microcephaly and deficiency of the neural system, currently known as Congenital ZIKV Syndrome (CZS). To better understand ZIKV dynamics in trophoblastic cells present in the first trimester of pregnancy (BeWo, HTR-8, and control cell HuH-7), an experiment of viral kinetics was performed for African MR766 low passage and Asian-Brazilian IEC ZIKV lineages. The results were described independently and demonstrated that the three placental cells lines are permissive and susceptible to ZIKV. We noticed cytopathic effects that are typical in in vitro viral infection in BeWo and HTR-8. Regarding kinetics, MR766lp showed peaks of viral loads in 24 and 48 hpi for all cell types tested, as well as marked cells death after peak production. On the other hand, the HTR-8 lineage inoculated with ZIKV-IEC exhibited increased viral production in 144 hpi, with a peak between 24 and 96 hpi. Furthermore, IEC had peak variations of viral production for BeWo in 144 hpi. Considering such in vitro results, the hypothesis that maternal fetal transmission is probably a way of virus transmission between the mother and the embryo/fetus is maintained.
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Affiliation(s)
- Márcia Duarte Barbosa
- Laboratory of Molecular Evolution and Bioinformatics, Department of Microbiology, Institute of Biosciences, University of São Paulo, São Paulo 05508-000, Brazil
- Laboratory of Retrovirology, Department of Microbiology, Immunology and Parasitology, Discipline of Microbiology, Federal University of São Paulo, São Paulo 04039-032, Brazil
| | - Anderson Costa
- Laboratory of Retrovirology, Department of Microbiology, Immunology and Parasitology, Discipline of Microbiology, Federal University of São Paulo, São Paulo 04039-032, Brazil
| | - Paula Prieto-Oliveira
- Department of Bioinformatics and Genomics, College of Computing and Informatics, University of North Carolina at Charlotte, 9331 Robert D. Snyder Rd., Charlotte, NC 28223, USA
| | - Robert Andreata-Santos
- Laboratory of Retrovirology, Department of Microbiology, Immunology and Parasitology, Discipline of Microbiology, Federal University of São Paulo, São Paulo 04039-032, Brazil
| | - Cristina M Peter
- Laboratory of Retrovirology, Department of Microbiology, Immunology and Parasitology, Discipline of Microbiology, Federal University of São Paulo, São Paulo 04039-032, Brazil
| | - Paolo M A Zanotto
- Laboratory of Molecular Evolution and Bioinformatics, Department of Microbiology, Institute of Biosciences, University of São Paulo, São Paulo 05508-000, Brazil
| | - Luiz Mario Ramos Janini
- Laboratory of Retrovirology, Department of Microbiology, Immunology and Parasitology, Discipline of Microbiology, Federal University of São Paulo, São Paulo 04039-032, Brazil
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Viettri M, Caraballo G, Sanchez ME, Espejel-Nuñez A, Betanzos A, Ortiz-Navarrete V, Estrada-Gutierrez G, Nava P, Ludert JE. Comparative Infections of Zika, Dengue, and Yellow Fever Viruses in Human Cytotrophoblast-Derived Cells Suggest a Gating Role for the Cytotrophoblast in Zika Virus Placental Invasion. Microbiol Spectr 2023; 11:e0063023. [PMID: 37227282 PMCID: PMC10269719 DOI: 10.1128/spectrum.00630-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/01/2023] [Indexed: 05/26/2023] Open
Abstract
The Zika virus (ZIKV) is teratogenic and considered a TORCH pathogen (toxoplasmosis [Toxoplasma gondii], rubella, cytomegalovirus, herpes simplex virus [HSV], and other microorganisms capable of crossing the blood-placenta barrier). In contrast, the related flavivirus dengue virus (DENV) and the attenuated yellow fever virus vaccine strain (YFV-17D) are not. Understanding the mechanisms used by ZIKV to cross the placenta is necessary. In this work, parallel infections with ZIKV of African and Asian lineages, DENV, and YFV-17D were compared for kinetics and growth efficiency, activation of mTOR pathways, and cytokine secretion profile using cytotrophoblast-derived HTR8 cells and monocytic U937 cells differentiated to M2 macrophages. In HTR8 cells, ZIKV replication, especially the African strain, was significantly more efficient and faster than DENV or YFV-17D. In macrophages, ZIKV replication was also more efficient, although differences between strains were reduced. Greater activation of the mTORC1 and mTORC2 pathways in HTR8 cells infected with ZIKV than with DENV or YFV-17D was observed. HTR8 cells treated with mTOR inhibitors showed a 20-fold reduction in ZIKV yield, versus 5- and 3.5-fold reductions for DENV and YFV-17D, respectively. Finally, infection with ZIKV, but not DENV or YFV-17D, efficiently inhibited the interferon (IFN) and chemoattractant responses in both cell lines. These results suggest a gating role for the cytotrophoblast cells in favoring entry of ZIKV, but not DENV and YFV-17D, into the placental stroma. IMPORTANCE Zika virus acquisition during pregnancy is associated with severe fetal damage. The Zika virus is related to dengue virus and yellow fever virus, yet fetal damage has not been related to dengue or inadvertent vaccination for yellow fever during pregnancy. Mechanisms used by the Zika virus to cross the placenta need to be deciphered. By comparing parallel infections of Zika virus strains belonging to the African and Asian lineages, dengue virus, and the yellow fever vaccine virus strain YFV-17D in placenta-derived cytotrophoblast cells and differentiated macrophages, evidence was found that Zika virus infections, especially by the African strains, were more efficient in cytotrophoblast cells than dengue virus or yellow fever vaccine virus strain infections. Meanwhile, no significant differences were observed in macrophages. Robust activation of the mTOR signaling pathways and inhibition of the IFN and chemoattractant response appear to be related to the better growth capacity of the Zika viruses in the cytotrophoblast-derived cells.
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Affiliation(s)
- Mercedes Viettri
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Gerson Caraballo
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Maria Elena Sanchez
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | | | - Abigail Betanzos
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Vianney Ortiz-Navarrete
- Department of Molecular Biomedicine, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | | | - Porfirio Nava
- Department of Biophysical Physiology and Neuroscience, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Juan E. Ludert
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
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Lu AY, Gustin A, Newhouse D, Gale M. Viral Protein Accumulation of Zika Virus Variants Links with Regulation of Innate Immunity for Differential Control of Viral Replication, Spread, and Response to Interferon. J Virol 2023; 97:e0198222. [PMID: 37162358 PMCID: PMC10231147 DOI: 10.1128/jvi.01982-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 04/13/2023] [Indexed: 05/11/2023] Open
Abstract
Asian lineage Zika virus (ZIKV) strains emerged globally, causing outbreaks linked with critical clinical disease outcomes unless the virus is effectively restricted by host immunity. We have previously shown that retinoic acid-inducible gene-I (RIG-I) senses ZIKV to trigger innate immunity to direct interferon (IFN) production and antiviral responses that can control ZIKV infection. However, ZIKV proteins have been demonstrated to antagonize IFN. Here, we conducted in vitro analyses to assess how divergent prototypic ZIKV variants differ in virologic properties, innate immune regulation, and infection outcome. We comparatively assessed African lineage ZIKV/Dakar/1984/ArD41519 (ZIKV/Dakar) and Asian lineage ZIKV/Malaysia/1966/P6740 (ZIKV/Malaysia) in a human epithelial cell infection model. De novo viral sequence determination identified amino acid changes within the ZIKV/Dakar genome compared to ZIKV/Malaysia. Viral growth analyses revealed that ZIKV/Malaysia accumulated viral proteins and genome copies earlier and to higher levels than ZIKV/Dakar. Both ZIKV strains activated RIG-I/IFN regulatory factor (IRF3) and NF-κB pathways to induce inflammatory cytokine expression and types I and III IFNs. However, ZIKV/Malaysia, but not ZIKV/Dakar, potently blocked downstream IFN signaling. Remarkably, ZIKV/Dakar protein accumulation and genome replication were rescued in RIG-I knockout (KO) cells late in acute infection, resulting in ZIKV/Dakar-mediated blockade of IFN signaling. We found that RIG-I signaling specifically restricts viral protein accumulation late in acute infection where early accumulation of viral proteins in infected cells confers enhanced ability to limit IFN signaling, promoting viral replication and spread. Our results demonstrate that RIG-I-mediated innate immune signaling imparts restriction of ZIKV protein accumulation, which permits IFN signaling and antiviral actions controlling ZIKV infection. IMPORTANCE ZIKV isolates are classified under African or Asian lineages. Infection with emerging Asian lineage-derived ZIKV strains is associated with increased incidence of neurological symptoms that were not previously reported during infection with African or preemergent Asian lineage viruses. In this study, we utilized in vitro models to compare the virologic properties of and innate immune responses to two prototypic ZIKV strains from distinct lineages: African lineage ZIKV/Dakar and Asian lineage ZIKV/Malaysia. Compared to ZIKV/Dakar, ZIKV/Malaysia accumulates viral proteins earlier, replicates to higher levels, and robustly blocks IFN signaling during acute infection. Early accumulation of ZIKV/Malaysia NS5 protein confers enhanced ability to antagonize IFN signaling, dampening innate immune responses to promote viral spread. Our data identify the kinetics of viral protein accumulation as a major regulator of host innate immunity, influencing host-mediated control of ZIKV replication and spread. Importantly, these findings provide a novel framework for evaluating the virulence of emerging variants.
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Affiliation(s)
- Amy Y. Lu
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington, Seattle, Washington, USA
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Andrew Gustin
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington, Seattle, Washington, USA
| | - Daniel Newhouse
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington, Seattle, Washington, USA
| | - Michael Gale
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington, Seattle, Washington, USA
- Department of Global Health, University of Washington, Seattle, Washington, USA
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7
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Zhou J, Tian Y, Qu Y, Williams M, Yuan Y, Karvas RM, Sheridan MA, Schulz LC, Ezashi T, Roberts MR, Schust DJ. The immune checkpoint molecule, VTCN1/B7-H4, guides differentiation and suppresses proinflammatory responses and MHC class I expression in an embryonic stem cell-derived model of human trophoblast. Front Endocrinol (Lausanne) 2023; 14:1069395. [PMID: 37008954 PMCID: PMC10062451 DOI: 10.3389/fendo.2023.1069395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 01/26/2023] [Indexed: 03/18/2023] Open
Abstract
The placenta acts as a protective barrier to pathogens and other harmful substances present in the maternal circulation throughout pregnancy. Disruption of placental development can lead to complications of pregnancy such as preeclampsia, intrauterine growth retardation and preterm birth. In previous work, we have shown that expression of the immune checkpoint regulator, B7-H4/VTCN1, is increased upon differentiation of human embryonic stem cells (hESC) to an in vitro model of primitive trophoblast (TB), that VTCN1/B7-H4 is expressed in first trimester but not term human placenta and that primitive trophoblast may be uniquely susceptible to certain pathogens. Here we report on the role of VTCN1 in trophoblast lineage development and anti-viral responses and the effects of changes in these processes on major histocompatibility complex (MHC) class I expression and peripheral NK cell phenotypes.
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Affiliation(s)
- Jie Zhou
- Department of Obstetrics, Gynecology, and Women’s Health, University of Missouri, Columbia, MO, United States
- Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
- Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, United States
| | - Yuchen Tian
- Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
| | - Ying Qu
- Department of Obstetrics, Gynecology, and Women’s Health, University of Missouri, Columbia, MO, United States
| | - Madyson Williams
- Department of Obstetrics, Gynecology, and Women’s Health, University of Missouri, Columbia, MO, United States
- Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
| | - Ye Yuan
- Research Department, Colorado Center for Reproductive Medicine, Lone Tree, CO, United States
| | - Rowan M. Karvas
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, United States
| | - Megan A. Sheridan
- Department of Obstetrics, Gynecology, and Women’s Health, University of Missouri, Columbia, MO, United States
- Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
| | - Laura C. Schulz
- Department of Obstetrics, Gynecology, and Women’s Health, University of Missouri, Columbia, MO, United States
| | - Toshihiko Ezashi
- Research Department, Colorado Center for Reproductive Medicine, Lone Tree, CO, United States
| | - Michael R. Roberts
- Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States
| | - Danny J. Schust
- Department of Obstetrics, Gynecology, and Women’s Health, University of Missouri, Columbia, MO, United States
- Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
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8
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Yu W, Zhang B, Hong X, Cai H, Wang Y, Lu J, Hu X, Cao B. Identification of desoxyrhapontigenin as a novel antiviral agent against congenital Zika virus infection. Antiviral Res 2023; 211:105542. [PMID: 36646387 DOI: 10.1016/j.antiviral.2023.105542] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/08/2023] [Accepted: 01/12/2023] [Indexed: 01/15/2023]
Abstract
Zika virus (ZIKV) infection arises as a global health threat owing to its association with Guillain-Barre syndrome and microcephaly in adults and fetuses since the most recent epidemics. Although extraordinary efforts have been underway globally to identify safe and effective treatments for ZIKV, therapeutic progressions seem to remain stagnant, especially for treating congenital ZIKV infection. Bio-compounds from medicinal plants evolutionarily optimized as drug-like molecules offer eligible sources of pharmaceuticals and lead drugs to fight against viral infections. Here, we identified desoxyrhapontigenin (DES), a naturally occurring bioactive product, as the strongest inhibitory compound against ZIKV infection among six conventional polyphenols in vitro. We also leveraged the trophoblast cell line, human trophoblast stem cells, and complex placental organoid models to provide solid evidence to support the anti-ZIKV bioactivity of DES. Notably, DES treatment effectively reduced the ZIKV burden in serum and target tissues, and correspondingly improved ZIKV-induced pathologic changes including weight loss, tissue inflammation, cell apoptosis, and adverse pregnancy outcomes, while it did not lead to obvious toxicity in both adult and pregnant mice. Furthermore, mechanistic studies revealed that DES could suppress ZIKV entry via dual mechanisms of direct targeting ZIKV E proteins and downregulating putative ZIKV receptors. These findings elucidate a previously unappreciated protective role of desoxyrhapontigenin against ZIKV infection both in vitro and in vivo, which shed light on the development of a novel and potent treatment for congenital ZIKV infection.
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Affiliation(s)
- Wenzhe Yu
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361002, China
| | - Beiang Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, 361002, China
| | - Xiao Hong
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361002, China
| | - Han Cai
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361002, China
| | - Yinan Wang
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361002, China
| | - Jinhua Lu
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361002, China
| | - Xiaoqian Hu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, 361002, China.
| | - Bin Cao
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361002, China.
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9
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Chan YT, Cheok YY, Cheong HC, Tang TF, Sulaiman S, Hassan J, Looi CY, Tan KK, AbuBakar S, Wong WF. Immune Recognition versus Immune Evasion Systems in Zika Virus Infection. Biomedicines 2023; 11:biomedicines11020642. [PMID: 36831177 PMCID: PMC9952926 DOI: 10.3390/biomedicines11020642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 02/22/2023] Open
Abstract
The reemergence of the Zika virus (ZIKV) infection in recent years has posed a serious threat to global health. Despite being asymptomatic or mildly symptomatic in a majority of infected individuals, ZIKV infection can result in severe manifestations including neurological complications in adults and congenital abnormalities in newborns. In a human host, ZIKV is primarily recognized by RIG-like receptors and Toll-like receptors that elicit anti-viral immunity through the secretion of type I interferon (IFN) to limit viral survival, replication, and pathogenesis. Intriguingly, ZIKV evades its host immune system through various immune evasion strategies, including suppressing the innate immune receptors and signaling pathways, mutation of viral structural and non-structural proteins, RNA modulation, or alteration of cellular pathways. Here, we present an overview of ZIKV recognition by the host immune system and the evasion strategies employed by ZIKV. Characterization of the host-viral interaction and viral disease mechanism provide a platform for the rational design of novel prophylactic and therapeutic strategies against ZIKV infection.
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Affiliation(s)
- Yee Teng Chan
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Yi Ying Cheok
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Heng Choon Cheong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Ting Fang Tang
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Sofiah Sulaiman
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Jamiyah Hassan
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Chung Yeng Looi
- School of Biosciences, Faculty of Health & Medical Sciences, Taylor’s University, 1, Jalan Taylors, Subang Jaya 47500, Malaysia
| | - Kim-Kee Tan
- Tropical Infectious Diseases Research and Education Centre (TIDREC), Higher Education Center of Excellence (HICoE), University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Sazaly AbuBakar
- Tropical Infectious Diseases Research and Education Centre (TIDREC), Higher Education Center of Excellence (HICoE), University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Won Fen Wong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
- Correspondence: ; Tel.: +60-(3)-7967-6672
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10
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Hernández-Sarmiento LJ, Valdés-López JF, Urcuqui-Inchima S. American-Asian- and African lineages of Zika virus induce differential pro-inflammatory and Interleukin 27-dependent antiviral responses in human monocytes. Virus Res 2023; 325:199040. [PMID: 36610657 PMCID: PMC10194209 DOI: 10.1016/j.virusres.2023.199040] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/23/2022] [Accepted: 01/04/2023] [Indexed: 01/06/2023]
Abstract
Zika virus (ZIKV) is an arbovirus that belongs to the Flaviviridae family and inflammatory responses play a critical role in ZIKV pathogenesis. As a first-line defense, monocytes are key components of innate immunity and host response to viruses. Monocytes are considered the earliest blood cell type to be infected by ZIKV and have been shown to be associated with ZIKV pathogenesis. The first ZIKV epidemic was reported in Africa and Asia although, it is less well known whether African- and Asian- lineages of ZIKV have different impacts on host immune response. We studied the pro-inflammatory and antiviral response of ZIKV-infected monocytes using publicly available RNA-seq analysis (GSE103114). We compared the transcriptomic profiles of human monocytes infected with ZIKV Puerto Rico strain (PRVABC59), American-Asian lineage, and ZIKV Nigeria strain (IBH30656), African lineage. We validated RNA-seq results by ELISA or RT-qPCR, in human monocytes infected with a clinical isolate of ZIKV from Colombia (American-Asian lineage), or with ZIKV from Dakar (African lineage). The transcriptomic analysis showed that ZIKV Puerto Rico strain promotes a higher pro-inflammatory response through TLR2 signaling and NF-kB activation and induces a strong IL27-dependent antiviral activity than ZIKV Nigeria strain. Furthermore, human monocytes are more susceptible to infection with ZIKV from Colombia than ZIKV from Dakar. Likewise, Colombian ZIKV isolate activated IL27 signaling and induced a robust antiviral response in an IFN-independent manner. Moreover, we show that treatment of monocytes with IL27 results in decreased release of ZIKV particles in a dose-dependent manner with an EC50 =2.870 ng/mL for ZIKV from Colombia and EC50 =10.23 ng/mL to ZIKV from Dakar. These findings highlight the differential inflammatory response and antiviral activity of monocytes infected with different lineages of ZIKV and may help better management of ZIKV-infected patients.
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Affiliation(s)
| | - Juan Felipe Valdés-López
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Silvio Urcuqui-Inchima
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
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11
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Tatara JM, Rosa RL, Varela APM, Teixeira TF, Sesterheim P, Gris A, Driemeier D, Moraes ANS, Berger M, Peña RD, Roehe PM, Souza DOG, Guimarães JA, Campos AR, Santi L, Beys-da-Silva WO. Differential proteomics of Zika virus (ZIKV) infection reveals molecular changes potentially involved in immune system evasion by a Brazilian strain of ZIKV. Arch Virol 2023; 168:70. [PMID: 36658439 DOI: 10.1007/s00705-022-05629-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 09/01/2022] [Indexed: 01/21/2023]
Abstract
Zika virus (ZIKV) is an arbovirus that was responsible for multiple outbreaks from 2007 to 2015. It has been linked to cases of microcephaly in Brazil in 2015, among other neurological disorders. Differences among strains might be the reason for different clinical outcomes of infection. To evaluate this hypothesis, we performed a comparative proteomic analysis of Vero cells infected with the African strain MR766 (ZIKVAFR) and the Brazilian strain 17 SM (ZIKVBR). A total of 550 proteins were identified as differentially expressed in ZIKVAFR- or ZIKVBR-infected cells compared to the control. The main findings included upregulation of immune system pathways (neutrophil degranulation and adaptive/innate immune system) and potential activation of immune-system-related pathways by ZIKVAFR (mTOR, JAK-STAT, NF-κB, and others) compared with the ZIKVBR/control. In addition, phagocytosis by macrophages and engulfment of leukocytes were activated in ZIKVAFR infection. An in vivo analysis using an immunocompetent C57BL/6N mouse model identified interstitial pneumonia with neutrophil infiltration in the lungs only in mice infected with ZIKVBR at 48 hours postinfection, with a significant amount of virus detected. Likewise, only animals infected with ZIKVBR had viral material in the cytoplasm of lung macrophages. These results suggest that activation of the immune system by ZIKVAFR infection may lead to faster viral clearance by immune cells.
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Affiliation(s)
- Juliana M Tatara
- Post-Graduation Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Av Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil
| | - Rafael L Rosa
- Post-Graduation Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Av Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil
| | - Ana Paula M Varela
- Department of Microbiology, Immunology and Parasitology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Graduate Program in Biosciences, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil
| | - Tais F Teixeira
- Center for Experimental Cardiology, Institute of Cardiology, Porto Alegre, Brazil
| | - Patrícia Sesterheim
- Center for Experimental Cardiology, Institute of Cardiology, Porto Alegre, Brazil
| | - Anderson Gris
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - David Driemeier
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Amanda N S Moraes
- Post-Graduation Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Av Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil
| | - Markus Berger
- Experimental Research Center, Clinical Hospital of Porto Alegre, Porto Alegre, Brazil
| | - Ramon D Peña
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, USA
| | - Paulo M Roehe
- Department of Microbiology, Immunology and Parasitology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Diogo O G Souza
- Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Jorge A Guimarães
- Post-Graduation Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Av Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil.,Center for Experimental Cardiology, Institute of Cardiology, Porto Alegre, Brazil
| | | | - Lucélia Santi
- Post-Graduation Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Av Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil.,Experimental Research Center, Clinical Hospital of Porto Alegre, Porto Alegre, Brazil.,Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Walter O Beys-da-Silva
- Post-Graduation Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Av Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil. .,Experimental Research Center, Clinical Hospital of Porto Alegre, Porto Alegre, Brazil. .,Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
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12
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Rubio-Hernández EI, Comas-García M, Coronado-Ipiña MA, Colunga-Saucedo M, González Sánchez HM, Castillo CG. Astrocytes derived from neural progenitor cells are susceptible to Zika virus infection. PLoS One 2023; 18:e0283429. [PMID: 36989308 PMCID: PMC10057746 DOI: 10.1371/journal.pone.0283429] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 03/08/2023] [Indexed: 03/30/2023] Open
Abstract
Zika virus (ZIKV) was first isolated in 1947. From its isolation until 2007, symptoms of ZIKV-caused disease were limited (e.g., fever, hives, and headache); however, during the epidemic in Brazil in 2014, ZIKV infection caused Guillain-Barré syndrome in adults and microcephaly in fetuses and infants of women infected during pregnancy. The neurovirulence of ZIKV has been studied using neural progenitor cells (NPCs), brain organoids, neurons, and astrocytes. NPCs and astrocytes appear to be the most susceptible cells of the Central Nervous System to ZIKV infection. In this work, we aimed to develop a culture of astrocytes derived from a human NPC cell line. We analyze how ZIKV affects human astrocytes and demonstrate that 1) ZIKV infection reduces cell viability, increases the production of Reactive Oxygen Species (ROS), and results in high viral titers; 2) there are changes in the expression of genes that facilitate the entry of the virus into the cells; 3) there are changes in the expression of genes involved in the homeostasis of the glutamatergic system; and 4) there are ultrastructural changes in mitochondria and lipid droplets associated with production of virions. Our findings reveal new evidence of how ZIKV compromises astrocytic functionality, which may help understand the pathophysiology of ZIKV-associated congenital disease.
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Affiliation(s)
- Edson Iván Rubio-Hernández
- Laboratorio de Células Neurales Troncales Humanas, Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología-Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Mauricio Comas-García
- Sección de Microscopia de Alta Resolución, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Miguel Angel Coronado-Ipiña
- Sección de Microscopia de Alta Resolución, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Mayra Colunga-Saucedo
- Sección de Genómica Médica, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Hilda Minerva González Sánchez
- Cátedra CONACYT- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Claudia G Castillo
- Laboratorio de Células Neurales Troncales Humanas, Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología-Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
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13
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Novel Therapeutic Nutrients Molecules That Protect against Zika Virus Infection with a Special Note on Palmitoleate. Nutrients 2022; 15:nu15010124. [PMID: 36615782 PMCID: PMC9823984 DOI: 10.3390/nu15010124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/11/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
Zika virus (ZIKV) is a Flavivirus from the Flaviviridae family and a positive-sense single strand RNA virus. ZIKV infection can cause a mild infection to the mother but can be vertically transmitted to the developing fetus, causing congenital anomalies. The prevalence of ZIKV infections was relatively insignificant with sporadic outbreaks in the Asian and African continents until 2006. However, recent epidemic in the Caribbean showed significant increased incidence of Congenital Zika Syndrome. ZIKV infection results in placental pathology which plays a crucial role in disease transmission from mother to fetus. Currently, there is no Food and Drug Administration (FDA) approved vaccine or therapeutic drug against ZIKV. This review article summarizes the recent advances on ZIKV transmission and diagnosis and reviews nutraceuticals which can protect against the ZIKV infection. Further, we have reviewed recent advances related to the novel therapeutic nutrient molecules that have been shown to possess activity against Zika virus infected cells. We also review the mechanism of ZIKV-induced endoplasmic reticulum and apoptosis and the protective role of palmitoleate (nutrient molecule) against ZIKV-induced ER stress and apoptosis in the placental trophoblasts.
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14
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Pathogenicity and Structural Basis of Zika Variants with Glycan Loop Deletions in the Envelope Protein. J Virol 2022; 96:e0087922. [PMID: 36377874 PMCID: PMC9749469 DOI: 10.1128/jvi.00879-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The glycan loop of Zika virus (ZIKV) envelope protein (E) contains the glycosylation site and has been well documented to be important for viral pathogenesis and transmission. In the present study, we report that deletions in the E glycan loop, which were recorded in African ZIKV strains previously, have re-emerged in their contemporary Asian lineages. Here, we generated recombinant ZIKV containing specific deletions in the E glycan loop by reverse genetics. Extensive in vitro and in vivo characterization of these deletion mutants demonstrated an attenuated phenotype in an adult A129 mouse model and reduced oral infections in mosquitoes. Surprisingly, these glycan loop deletion mutants exhibited an enhanced neurovirulence phenotype, and resulted in a more severe microcephalic brain in neonatal mouse models. Crystal structures of the ZIKV E protein and a deletion mutant at 2.5 and 2.6 Å, respectively, revealed that deletion of the glycan loop induces encephalitic flavivirus-like conformational alterations, including the appearance of perforations on the surface and a clear change in the topology of the loops. Overall, our results demonstrate that the E glycan loop deletions represent neonatal mouse neurovirulence markers of ZIKV. IMPORTANCE Zika virus (ZIKV) has been identified as a cause of microcephaly and acquired evolutionary mutations since its discovery. Previously deletions in the E glycan loop were recorded in African ZIKV strains, which have re-emerged in the contemporary Asian lineages recently. The glycan loop deletion mutants are not glycosylated, which are attenuated in adult A129 mouse model and reduced oral infections in mosquitoes. More importantly, the glycan loop deletion mutants induce an encephalitic flavivirus-like conformational alteration in the E homodimer, resulting in a significant enhancement of neonatal mouse neurovirulence. This study underscores the critical role of glycan loop deletion mutants in ZIKV pathogenesis, highlighting a need for global virological surveillance for such ZIKV variants.
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15
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Ruan D, Ye ZW, Yuan S, Li Z, Zhang W, Ong CP, Tang K, Ka Ki Tam TT, Guo J, Xuan Y, Huang Y, Zhang Q, Lee CL, Lu L, Chiu PCN, Yeung WSB, Liu F, Jin DY, Liu P. Human early syncytiotrophoblasts are highly susceptible to SARS-CoV-2 infection. Cell Rep Med 2022; 3:100849. [PMID: 36495872 PMCID: PMC9671691 DOI: 10.1016/j.xcrm.2022.100849] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 08/23/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022]
Abstract
Direct in vivo investigation of human placenta trophoblast's susceptibility to SARS-CoV-2 is challenging. Here we report that human trophoblast stem cells (hTSCs) and their derivatives are susceptible to SARS-CoV-2 infection, which reveals heterogeneity in hTSC cultures. Early syncytiotrophoblasts (eSTBs) generated from hTSCs have enriched transcriptomic features of peri-implantation trophoblasts, express high levels of angiotensin-converting enzyme 2 (ACE2), and are productively infected by SARS-CoV-2 and its Delta and Omicron variants to produce virions. Antiviral drugs suppress SARS-CoV-2 replication in eSTBs and antagonize the virus-induced blockage of STB maturation. Although less susceptible to SARS-CoV-2 infection, trophoblast organoids originating from hTSCs show detectable viral replication reminiscent of the uncommon placental infection. These findings implicate possible risk of COVID-19 infection in peri-implantation embryos, which may go unnoticed. Stem cell-derived human trophoblasts such as eSTBs can potentially provide unlimited amounts of normal and genome-edited cells and facilitate coronavirus research and antiviral discovery.
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Affiliation(s)
- Degong Ruan
- Centre for Translational Stem Cell Biology, The University of Hong Kong, Hong Kong Special Administrative Region, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Zi-Wei Ye
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Shuofeng Yuan
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Zhuoxuan Li
- Stem Cell & Regenerative Medicine Consortium, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Weiyu Zhang
- Centre for Translational Stem Cell Biology, The University of Hong Kong, Hong Kong Special Administrative Region, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Chon Phin Ong
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Kaiming Tang
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Timothy Theodore Ka Ki Tam
- Stem Cell & Regenerative Medicine Consortium, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Jilong Guo
- Stem Cell & Regenerative Medicine Consortium, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Yiyi Xuan
- Stem Cell & Regenerative Medicine Consortium, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Yunying Huang
- Stem Cell & Regenerative Medicine Consortium, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Qingqing Zhang
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Cheuk-Lun Lee
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Liming Lu
- Shanghai Institute of Immunology, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Philip C N Chiu
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - William S B Yeung
- Centre for Translational Stem Cell Biology, The University of Hong Kong, Hong Kong Special Administrative Region, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China; Department of Obstetrics and Gynaecology, School of Clinical Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Fang Liu
- Centre for Translational Stem Cell Biology, The University of Hong Kong, Hong Kong Special Administrative Region, China; Foshan Stomatology Hospital, School of Medicine, Foshan University, No. 5 Hebing Road, Foshan, Guangdong Province, China.
| | - Dong-Yan Jin
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China.
| | - Pentao Liu
- Centre for Translational Stem Cell Biology, The University of Hong Kong, Hong Kong Special Administrative Region, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China; Stem Cell & Regenerative Medicine Consortium, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China; School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China.
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16
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Raasch LE, Yamamoto K, Newman CM, Rosinski JR, Shepherd PM, Razo E, Crooks CM, Bliss MI, Breitbach ME, Sneed EL, Weiler AM, Zeng X, Noguchi KK, Morgan TK, Fuhler NA, Bohm EK, Alberts AJ, Havlicek SJ, Kabakov S, Mitzey AM, Antony KM, Ausderau KK, Mejia A, Basu P, Simmons HA, Eickhoff JC, Aliota MT, Mohr EL, Friedrich TC, Golos TG, O’Connor DH, Dudley DM. Fetal loss in pregnant rhesus macaques infected with high-dose African-lineage Zika virus. PLoS Negl Trop Dis 2022; 16:e0010623. [PMID: 35926066 PMCID: PMC9380952 DOI: 10.1371/journal.pntd.0010623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/16/2022] [Accepted: 06/29/2022] [Indexed: 11/29/2022] Open
Abstract
Countermeasures against Zika virus (ZIKV), including vaccines, are frequently tested in nonhuman primates (NHP). Macaque models are important for understanding how ZIKV infections impact human pregnancy due to similarities in placental development. The lack of consistent adverse pregnancy outcomes in ZIKV-affected pregnancies poses a challenge in macaque studies where group sizes are often small (4-8 animals). Studies in small animal models suggest that African-lineage Zika viruses can cause more frequent and severe fetal outcomes. No adverse outcomes were observed in macaques exposed to 1x104 PFU (low dose) of African-lineage ZIKV at gestational day (GD) 45. Here, we exposed eight pregnant rhesus macaques to 1x108 PFU (high dose) of African-lineage ZIKV at GD 45 to test the hypothesis that adverse pregnancy outcomes are dose-dependent. Three of eight pregnancies ended prematurely with fetal death. ZIKV was detected in both fetal and placental tissues from all cases of early fetal loss. Further refinements of this exposure system (e.g., varying the dose and timing of infection) could lead to an even more consistent, unambiguous fetal loss phenotype for assessing ZIKV countermeasures in pregnancy. These data demonstrate that high-dose exposure to African-lineage ZIKV causes pregnancy loss in macaques and also suggest that ZIKV-induced first trimester pregnancy loss could be strain-specific.
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Affiliation(s)
- Lauren E. Raasch
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
| | - Keisuke Yamamoto
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
| | - Christina M. Newman
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
| | - Jenna R. Rosinski
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
| | - Phoenix M. Shepherd
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
| | - Elaina Razo
- Department of Pediatrics, UW Madison, Madison, Wisconsin, United States of America
| | - Chelsea M. Crooks
- Department of Pathobiological Sciences, UW Madison, Madison, Wisconsin, United States of America
| | - Mason I. Bliss
- Wisconsin National Primate Research Center, UW Madison, Madison, Wisconsin, United States of America
| | - Meghan E. Breitbach
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
| | - Emily L. Sneed
- Wisconsin National Primate Research Center, UW Madison, Madison, Wisconsin, United States of America
| | - Andrea M. Weiler
- Wisconsin National Primate Research Center, UW Madison, Madison, Wisconsin, United States of America
| | - Xiankun Zeng
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Kevin K. Noguchi
- Department of Psychiatry, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Terry K. Morgan
- Department of Pathology, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Nicole A. Fuhler
- Department of Psychiatry, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Ellie K. Bohm
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Alexandra J. Alberts
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
| | - Samantha J. Havlicek
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
| | - Sabrina Kabakov
- Department of Kinesiology Occupational Therapy Program, University of Wisconsin Madison, Madison, Wisconsin, United States of America
| | - Ann M. Mitzey
- Department of Comparative Biosciences, UW Madison, Madison, Wisconsin, United States of America
| | - Kathleen M. Antony
- Department of Obstetrics and Gynecology, UW Madison, Madison, Wisconsin, United States of America
| | - Karla K. Ausderau
- Department of Kinesiology Occupational Therapy Program, University of Wisconsin Madison, Madison, Wisconsin, United States of America
- Waisman Center, UW Madison, Madison, Wisconsin, United States of America
| | - Andres Mejia
- Wisconsin National Primate Research Center, UW Madison, Madison, Wisconsin, United States of America
| | - Puja Basu
- Wisconsin National Primate Research Center, UW Madison, Madison, Wisconsin, United States of America
| | - Heather A. Simmons
- Wisconsin National Primate Research Center, UW Madison, Madison, Wisconsin, United States of America
| | - Jens C. Eickhoff
- Department of Biostatistics and Medical Informatics, UW Madison, Madison, Wisconsin, United States of America
| | - Matthew T. Aliota
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Emma L. Mohr
- Department of Pediatrics, UW Madison, Madison, Wisconsin, United States of America
| | - Thomas C. Friedrich
- Department of Pathobiological Sciences, UW Madison, Madison, Wisconsin, United States of America
- Wisconsin National Primate Research Center, UW Madison, Madison, Wisconsin, United States of America
| | - Thaddeus G. Golos
- Wisconsin National Primate Research Center, UW Madison, Madison, Wisconsin, United States of America
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Minneapolis, Minnesota, United States of America
- Department of Kinesiology Occupational Therapy Program, University of Wisconsin Madison, Madison, Wisconsin, United States of America
| | - David H. O’Connor
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
- Wisconsin National Primate Research Center, UW Madison, Madison, Wisconsin, United States of America
- * E-mail:
| | - Dawn M. Dudley
- Department of Pathology and Laboratory Medicine, UW Madison, Madison, Wisconsin, United States of America
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17
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Block LN, Schmidt JK, Keuler NS, McKeon MC, Bowman BD, Wiepz GJ, Golos TG. Zika virus impacts extracellular vesicle composition and cellular gene expression in macaque early gestation trophoblasts. Sci Rep 2022; 12:7348. [PMID: 35513694 PMCID: PMC9072346 DOI: 10.1038/s41598-022-11275-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 04/13/2022] [Indexed: 11/26/2022] Open
Abstract
Zika virus (ZIKV) infection at the maternal-placental interface is associated with adverse pregnancy outcomes including fetal demise and pregnancy loss. To determine how infection impacts placental trophoblasts, we utilized rhesus macaque trophoblast stem cells (TSC) that can be differentiated into early gestation syncytiotrophoblasts (ST) and extravillous trophoblasts (EVT). TSCs and STs, but not EVTs, were highly permissive to productive infection with ZIKV strain DAK AR 41524. The impact of ZIKV on the cellular transcriptome showed that infection of TSCs and STs increased expression of immune related genes, including those involved in type I and type III interferon responses. ZIKV exposure altered extracellular vesicle (EV) mRNA, miRNA and protein cargo, including ZIKV proteins, regardless of productive infection. These findings suggest that early gestation macaque TSCs and STs are permissive to ZIKV infection, and that EV analysis may provide a foundation for identifying non-invasive biomarkers of placental infection in a highly translational model.
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Affiliation(s)
- Lindsey N. Block
- grid.14003.360000 0001 2167 3675Wisconsin National Primate Research Center, University of Wisconsin-Madison, 1223 Capitol Ct., Madison, WI 53715-1299 USA ,grid.14003.360000 0001 2167 3675Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI USA ,grid.25879.310000 0004 1936 8972Present Address: University of Pennsylvania, Philadelphia, PA USA
| | - Jenna Kropp Schmidt
- grid.14003.360000 0001 2167 3675Wisconsin National Primate Research Center, University of Wisconsin-Madison, 1223 Capitol Ct., Madison, WI 53715-1299 USA
| | - Nicholas S. Keuler
- grid.14003.360000 0001 2167 3675Department of Statistics, University of Wisconsin-Madison, Madison, WI USA
| | - Megan C. McKeon
- grid.14003.360000 0001 2167 3675Department of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, WI USA
| | - Brittany D. Bowman
- grid.14003.360000 0001 2167 3675Wisconsin National Primate Research Center, University of Wisconsin-Madison, 1223 Capitol Ct., Madison, WI 53715-1299 USA ,grid.266813.80000 0001 0666 4105Present Address: University of Nebraska Medical Center, Omaha, NE USA
| | - Gregory J. Wiepz
- grid.14003.360000 0001 2167 3675Wisconsin National Primate Research Center, University of Wisconsin-Madison, 1223 Capitol Ct., Madison, WI 53715-1299 USA
| | - Thaddeus G. Golos
- grid.14003.360000 0001 2167 3675Wisconsin National Primate Research Center, University of Wisconsin-Madison, 1223 Capitol Ct., Madison, WI 53715-1299 USA ,grid.14003.360000 0001 2167 3675Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI USA ,grid.14003.360000 0001 2167 3675Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI USA
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18
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Abstract
Zika virus is a mosquito-borne flavivirus known to cause severe birth defects and neuroimmunological disorders. We have previously demonstrated that mosquito transmission of Zika virus decreases with temperature. While transmission was optimized at 29°C, it was limited at cool temperatures (<22°C) due to poor virus establishment in the mosquitoes. Temperature is one of the strongest drivers of vector-borne disease transmission due to its profound effect on ectothermic mosquito vectors, viruses, and their interaction. Although there is substantial evidence of temperature effects on arbovirus replication and dissemination inside mosquitoes, little is known about whether temperature affects virus replication directly or indirectly through mosquito physiology. In order to determine the mechanisms behind temperature-induced changes in Zika virus transmission potential, we investigated different steps of the virus replication cycle in mosquito cells (C6/36) at optimal (28°C) and cool (20°C) temperatures. We found that the cool temperature did not alter Zika virus entry or translation, but it affected genome replication and reduced the amount of double-stranded RNA replication intermediates. If replication complexes were first formed at 28°C and the cells were subsequently shifted to 20°C, the late steps in the virus replication cycle were efficiently completed. These data suggest that cool temperature decreases the efficiency of Zika virus genome replication in mosquito cells. This phenotype was observed in the Asian lineage of Zika virus, while the African lineage Zika virus was less restricted at 20°C. IMPORTANCE With half of the human population at risk, arboviral diseases represent a substantial global health burden. Zika virus, previously known to cause sporadic infections in humans, emerged in the Americas in 2015 and quickly spread worldwide. There was an urgent need to better understand the disease pathogenesis and develop therapeutics and vaccines, as well as to understand, predict, and control virus transmission. In order to efficiently predict the seasonality and geography for Zika virus transmission, we need a deeper understanding of the host-pathogen interactions and how they can be altered by environmental factors such as temperature. Identifying the step in the virus replication cycle that is inhibited under cool conditions can have implications in modeling the temperature suitability for arbovirus transmission as global environmental patterns change. Understanding the link between pathogen replication and environmental conditions can potentially be exploited to develop new vector control strategies in the future.
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19
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Shin M, Kim K, Lee HJ, Lee R, Jung YJ, Park J, Hahn TW. Zika virus baculovirus-expressed envelope protein elicited humoral and cellular immunity in immunocompetent mice. Sci Rep 2022; 12:660. [PMID: 35027643 PMCID: PMC8758750 DOI: 10.1038/s41598-021-04713-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 09/24/2021] [Indexed: 12/05/2022] Open
Abstract
Zika virus (ZIKV) is a mosquito-borne virus that has a high risk of inducing Guillain-Barré syndrome and microcephaly in newborns. Because vaccination is considered the most effective strategy against ZIKV infection, we designed a recombinant vaccine utilizing the baculovirus expression system with two strains of ZIKV envelope protein (MR766, Env_M; ZBRX6, Env_Z). Animals inoculated with Env_M and Env_Z produced ZIKV-specific antibodies and secreted effector cytokines such as interferon-γ, tumor necrosis factor-α, and interleukin-12. Moreover, the progeny of immunized females had detectable maternal antibodies that protected them against two ZIKV strains (MR766 and PRVABC59) and a Dengue virus strain. We propose that the baculovirus expression system ZIKV envelope protein recombinant provides a safe and effective vaccine strategy.
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Affiliation(s)
- Minna Shin
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Kiju Kim
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Hyo-Ji Lee
- College of Biological Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Rangyeon Lee
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Yu-Jin Jung
- College of Biological Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Jeongho Park
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, 24341, Republic of Korea.
| | - Tae-Wook Hahn
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, 24341, Republic of Korea.
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20
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Sehrawat N, Dahiya N, Yadav M, Yadav A. Zika virus vertical transmission in mosquitoes: A less understood mechanism. J Vector Borne Dis 2022; 59:37-44. [DOI: 10.4103/0972-9062.331411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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21
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Zhou J, Choi S, Liu H, Zhang J, Tian Y, Edlow AG, Ezashi T, Roberts RM, Ma W, Schust DJ. Is SARS-CoV-2 Infection a Risk Factor for Early Pregnancy Loss? ACE2 and TMPRSS2 Coexpression and Persistent Replicative Infection in Primitive Trophoblast. J Infect Dis 2021; 224:S660-S669. [PMID: 34293134 PMCID: PMC8411376 DOI: 10.1093/infdis/jiab309] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND SARS-CoV-2 infection in term placenta is rare. However, growing evidence suggests that susceptibility of the human placenta to infection may vary by gestational age and pathogen. For several viral infections, susceptibility appears to be greatest during early gestation. Peri-implantation placental infections that result in pre-clinical pregnancy loss would typically go undetected. Little is known about the effects of SARS-CoV-2 on the peri-implantation human placenta since this time in pregnancy can only be modeled in vitro. METHODS We used a human embryonic stem cell (hESC)-derived model of peri-implantation placental development to assess patterns of ACE2 and TMPRSS2 transcription and protein expression in primitive trophoblast. We then infected the same trophoblast cell model with a clinical isolate of SARS-CoV-2 and documented infection dynamics. RESULTS ACE2 and TMPRSS2 were transcribed and translated in hESC-derived trophoblast, with preferential expression in syncytialized cells. These same cells supported replicative and persistent infection by SARS-CoV-2, while non-syncytialized trophoblast cells in the same cultures did not. CONCLUSIONS Co-expression of ACE2 and TMPRSS2 in hESC-derived trophoblast and the robust and replicative infection limited to syncytiotrophoblast equivalents support the hypothesis that increased viral susceptibility may be a defining characteristic of primitive trophoblast.
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Affiliation(s)
- Jie Zhou
- Department of Obstetrics, Gynecology, and Women's Health, University of Missouri School of Medicine, Columbia, Missouri, USA.,Christopher S Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Sehee Choi
- Department of Obstetrics, Gynecology, and Women's Health, University of Missouri School of Medicine, Columbia, Missouri, USA.,Christopher S Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Heidi Liu
- Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, Columbia, Missouri, USA.,Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, USA
| | - Jialin Zhang
- Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, Columbia, Missouri, USA.,Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, USA
| | - Yuchen Tian
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA.,Division of Animal Sciences, Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Andrea G Edlow
- Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Vincent Center for Reproductive Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Toshihiko Ezashi
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA.,Division of Animal Sciences, Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - R Michael Roberts
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA.,Division of Animal Sciences, Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Wenjun Ma
- Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, Columbia, Missouri, USA.,Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, USA
| | - Danny J Schust
- Department of Obstetrics, Gynecology, and Women's Health, University of Missouri School of Medicine, Columbia, Missouri, USA
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22
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Decidual NK cells kill Zika virus-infected trophoblasts. Proc Natl Acad Sci U S A 2021; 118:2115410118. [PMID: 34785597 DOI: 10.1073/pnas.2115410118] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2021] [Indexed: 11/18/2022] Open
Abstract
Zika virus (ZIKV) during pregnancy infects fetal trophoblasts and causes placental damage and birth defects including microcephaly. Little is known about the anti-ZIKV cellular immune response at the maternal-fetal interface. Decidual natural killer cells (dNK), which directly contact fetal trophoblasts, are the dominant maternal immune cells in the first-trimester placenta, when ZIKV infection is most hazardous. Although dNK express all the cytolytic molecules needed to kill, they usually do not kill infected fetal cells but promote placentation. Here, we show that dNK degranulate and kill ZIKV-infected placental trophoblasts. ZIKV infection of trophoblasts causes endoplasmic reticulum (ER) stress, which makes them dNK targets by down-regulating HLA-C/G, natural killer (NK) inhibitory receptor ligands that help maintain tolerance of the semiallogeneic fetus. ER stress also activates the NK activating receptor NKp46. ZIKV infection of Ifnar1 -/- pregnant mice results in high viral titers and severe intrauterine growth restriction, which are exacerbated by depletion of NK or CD8 T cells, indicating that killer lymphocytes, on balance, protect the fetus from ZIKV by eliminating infected cells and reducing the spread of infection.
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23
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Herd CS, Grant DG, Lin J, Franz AWE. Starvation at the larval stage increases the vector competence of Aedes aegypti females for Zika virus. PLoS Negl Trop Dis 2021; 15:e0010003. [PMID: 34843483 PMCID: PMC8659361 DOI: 10.1371/journal.pntd.0010003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 12/09/2021] [Accepted: 11/17/2021] [Indexed: 11/29/2022] Open
Abstract
Aedes aegypti is the primary vector of Zika virus (ZIKV), a flavivirus which typically presents itself as febrile-like symptoms in humans but can also cause neurological and pregnancy complications. The transmission cycle of mosquito-borne arboviruses such as ZIKV requires that various key tissues in the female mosquito get productively infected with the virus before the mosquito can transmit the virus to another vertebrate host. Following ingestion of a viremic blood-meal from a vertebrate, ZIKV initially infects the midgut epithelium before exiting the midgut after blood-meal digestion to disseminate to secondary tissues including the salivary glands. Here we investigated whether smaller Ae. aegypti females resulting from food deprivation as larvae exhibited an altered vector competence for blood-meal acquired ZIKV relative to larger mosquitoes. Midguts from small 'Starve' and large 'Control' Ae. aegypti were dissected to visualize by transmission electron microscopy (TEM) the midgut basal lamina (BL) as physical evidence for the midgut escape barrier showing Starve mosquitoes with a significantly thinner midgut BL than Control mosquitoes at two timepoints. ZIKV replication was inhibited in Starve mosquitoes following intrathoracic injection of virus, however, Starve mosquitoes exhibited a significantly higher midgut escape and population dissemination rate at 9 days post-infection (dpi) via blood-meal, with more virus present in saliva and head tissue than Control by 10 dpi and 14 dpi, respectively. These results indicate that Ae. aegypti developing under stressful conditions potentially exhibit higher midgut infection and dissemination rates for ZIKV as adults, Thus, variation in food intake as larvae is potentially a source for variable vector competence levels of the emerged adults for the virus.
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Affiliation(s)
- Christie S. Herd
- Dept. of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, United States of America
| | - DeAna G. Grant
- University of Missouri Electron Microscopy Facility, Columbia, Missouri, United States of America
| | - Jingyi Lin
- Dept. of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, United States of America
| | - Alexander W. E. Franz
- Dept. of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, United States of America
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24
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Fuentes-Zacarías P, Murrieta-Coxca JM, Gutiérrez-Samudio RN, Schmidt A, Schmidt A, Markert UR, Morales-Prieto DM. Pregnancy and pandemics: Interaction of viral surface proteins and placenta cells. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166218. [PMID: 34311080 PMCID: PMC9188292 DOI: 10.1016/j.bbadis.2021.166218] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/06/2021] [Accepted: 07/15/2021] [Indexed: 12/18/2022]
Abstract
Throughout history, pandemics of infectious diseases caused by emerging viruses have spread worldwide. Evidence from previous outbreaks demonstrated that pregnant women are at high risk of contracting the diseases and suffering from adverse outcomes. However, while some viruses can cause major health complications for the mother and her fetus, others do not appear to affect pregnancy. Viral surface proteins bind to specific receptors on the cellular membrane of host cells and begin therewith the infection process. During pregnancy, the molecular features of these proteins may determine specific target cells in the placenta, which may explain the different outcomes. In this review, we display information on Variola, Influenza, Zika and Corona viruses focused on their surface proteins, effects on pregnancy, and possible target placental cells. This will contribute to understanding viral entry during pregnancy, as well as to develop strategies to decrease the incidence of obstetrical problems in current and future infections.
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Affiliation(s)
| | - Jose M Murrieta-Coxca
- Placenta Lab, Department of Obstetrics, Jena University Hospital, 07747 Jena, Germany
| | | | - Astrid Schmidt
- Placenta Lab, Department of Obstetrics, Jena University Hospital, 07747 Jena, Germany
| | - Andre Schmidt
- Placenta Lab, Department of Obstetrics, Jena University Hospital, 07747 Jena, Germany
| | - Udo R Markert
- Placenta Lab, Department of Obstetrics, Jena University Hospital, 07747 Jena, Germany..
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25
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Ferraris P, Wichit S, Cordel N, Missé D. Human host genetics and susceptibility to ZIKV infection. INFECTION GENETICS AND EVOLUTION 2021; 95:105066. [PMID: 34487865 DOI: 10.1016/j.meegid.2021.105066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 08/29/2021] [Accepted: 09/01/2021] [Indexed: 12/26/2022]
Abstract
Managing emerging infectious diseases is a current challenge in the fields of microbiology and epidemiology. Indeed, among other environmental and human-related factors, climate change and global warming favor the emergence of new pathogens. The recent Zika virus (ZIKV) epidemic, of which the large and rapid spread surprised the scientific community, is a reminder of the importance to study viruses currently responsible for sporadic infections. Increasing our knowledge of key factors involved in emerging infections is essential to implement specific monitoring that can be oriented according to the pathogen, targeted population, or at-risk environment. Recent technological developments, such as high-throughput sequencing, genome-wide association studies and CRISPR screenings have allowed the identification of human single nucleotide polymorphisms (SNPs) involved in infectious disease outcome. This review focuses on the human genetic host factors that have been identified and shown to be associated with the pathogenesis of ZIKV infection and candidate SNP targets.
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Affiliation(s)
- Pauline Ferraris
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34394 Montpellier, France.
| | - Sineewanlaya Wichit
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Nadège Cordel
- Guadeloupe University Hospital, Department of Dermatology and Clinical Immunology, Pointe-à-Pitre, Guadeloupe and Normandie University, UNIROUEN, IRIB, Inserm, U1234, Rouen, France
| | - Dorothée Missé
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34394 Montpellier, France
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26
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African-Lineage Zika Virus Replication Dynamics and Maternal-Fetal Interface Infection in Pregnant Rhesus Macaques. J Virol 2021; 95:e0222020. [PMID: 34076485 PMCID: PMC8312872 DOI: 10.1128/jvi.02220-20] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Following the Zika virus (ZIKV) outbreak in the Americas, ZIKV was causally associated with microcephaly and a range of neurological and developmental symptoms, termed congenital Zika syndrome (CZS). The viruses responsible for this outbreak belonged to the Asian lineage of ZIKV. However, in vitro and in vivo studies assessing the pathogenesis of African-lineage ZIKV demonstrated that African-lineage isolates often replicated to high titers and caused more-severe pathology than Asian-lineage isolates. To date, the pathogenesis of African-lineage ZIKV in a translational model, particularly during pregnancy, has not been rigorously characterized. Here, we infected four pregnant rhesus macaques with a low-passage-number strain of African-lineage ZIKV and compared its pathogenesis to those for a cohort of four pregnant rhesus macaques infected with an Asian-lineage isolate and a cohort of mock-inoculated controls. The viral replication kinetics for the two experimental groups were not significantly different, and both groups developed robust neutralizing antibody titers above levels considered to be protective. There was no evidence of significant fetal head growth restriction or gross fetal harm at delivery (1 to 1.5 weeks prior to full term) in either group. However, a significantly higher burden of ZIKV viral RNA (vRNA) was found in the maternal-fetal interface tissues of the macaques exposed to an African-lineage isolate. Our findings suggest that ZIKV of any genetic lineage poses a threat to pregnant individuals and their infants. IMPORTANCE ZIKV was first identified in 1947 in Africa, but most of our knowledge of ZIKV is based on studies of the distinct Asian genetic lineage, which caused the outbreak in the Americas in 2015 to 2016. In its most recent update, the WHO stated that improved understanding of African-lineage ZIKV pathogenesis during pregnancy must be a priority. The recent detection of African-lineage isolates in Brazil underscores the need to understand the impact of these viruses. Here, we provide the first comprehensive assessment of African-lineage ZIKV infection during pregnancy in a translational nonhuman primate model. We show that African-lineage isolates replicate with kinetics similar to those of Asian-lineage isolates and can infect the placenta. However, there was no evidence of more-severe outcomes with African-lineage isolates. Our results highlight both the threat that African-lineage ZIKV poses to pregnant individuals and their infants and the need for epidemiological and translational in vivo studies with African-lineage ZIKV.
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27
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de Matos SMS, Hennigen AF, Wachholz GE, Rengel BD, Schuler-Faccini L, Roehe PM, Varela APM, Fraga LR. Possible Emergence of Zika Virus of African Lineage in Brazil and the Risk for New Outbreaks. Front Cell Infect Microbiol 2021; 11:680025. [PMID: 34368011 PMCID: PMC8342935 DOI: 10.3389/fcimb.2021.680025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/25/2021] [Indexed: 12/15/2022] Open
Affiliation(s)
- Sophia Martins Simon de Matos
- Laboratory of Genomic Medicine, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - André Ferreira Hennigen
- Laboratory of Virology, Department of Microbiology, Immunology and Parasitology, Institute of Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Gabriela Elis Wachholz
- Laboratory of Genomic Medicine, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Postgraduate Program in Genetics and Molecular Biology, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Teratogen Information Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Bruna Duarte Rengel
- Laboratory of Genomic Medicine, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Postgraduate Program in Genetics and Molecular Biology, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Teratogen Information Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Lavinia Schuler-Faccini
- Postgraduate Program in Genetics and Molecular Biology, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Teratogen Information Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Paulo Michel Roehe
- Laboratory of Virology, Department of Microbiology, Immunology and Parasitology, Institute of Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ana Paula Muterle Varela
- Postgraduate Program in Bioscience, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Lucas Rosa Fraga
- Laboratory of Genomic Medicine, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Teratogen Information Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Morphological Sciences, Institute of Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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28
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Nakayama E, Kato F, Tajima S, Ogawa S, Yan K, Takahashi K, Sato Y, Suzuki T, Kawai Y, Inagaki T, Taniguchi S, Le TT, Tang B, Prow NA, Uda A, Maeki T, Lim CK, Khromykh AA, Suhrbier A, Saijo M. Neuroinvasiveness of the MR766 strain of Zika virus in IFNAR-/- mice maps to prM residues conserved amongst African genotype viruses. PLoS Pathog 2021; 17:e1009788. [PMID: 34310650 PMCID: PMC8341709 DOI: 10.1371/journal.ppat.1009788] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 08/05/2021] [Accepted: 07/07/2021] [Indexed: 12/23/2022] Open
Abstract
Zika virus (ZIKV) strains are classified into the African and Asian genotypes. The higher virulence of the African MR766 strain, which has been used extensively in ZIKV research, in adult IFNα/β receptor knockout (IFNAR-/-) mice is widely viewed as an artifact associated with mouse adaptation due to at least 146 passages in wild-type suckling mouse brains. To gain insights into the molecular determinants of MR766's virulence, a series of genes from MR766 were swapped with those from the Asian genotype PRVABC59 isolate, which is less virulent in IFNAR-/- mice. MR766 causes 100% lethal infection in IFNAR-/- mice, but when the prM gene of MR766 was replaced with that of PRVABC59, the chimera MR/PR(prM) showed 0% lethal infection. The reduced virulence was associated with reduced neuroinvasiveness, with MR766 brain titers ≈3 logs higher than those of MR/PR(prM) after subcutaneous infection, but was not significantly different in brain titers of MR766 and MR/PR(prM) after intracranial inoculation. MR/PR(prM) also showed reduced transcytosis when compared with MR766 in vitro. The high neuroinvasiveness of MR766 in IFNAR-/- mice could be linked to the 10 amino acids that differ between the prM proteins of MR766 and PRVABC59, with 5 of these changes affecting positive charge and hydrophobicity on the exposed surface of the prM protein. These 10 amino acids are highly conserved amongst African ZIKV isolates, irrespective of suckling mouse passage, arguing that the high virulence of MR766 in adult IFNAR-/- mice is not the result of mouse adaptation.
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Affiliation(s)
- Eri Nakayama
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Fumihiro Kato
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shinya Ogawa
- Department of Applied Biological Chemistry, School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kexin Yan
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Kenta Takahashi
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yuko Sato
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tadaki Suzuki
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yasuhiro Kawai
- Management Department of Biosafety and Laboratory Animal, Division of Biosafety Control and Research, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takuya Inagaki
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Satoshi Taniguchi
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Thuy T. Le
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Bing Tang
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Natalie A. Prow
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- Australian Infectious Disease Research Centre, GVN Center of Excellence, The University of Queensland and QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Akihiko Uda
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takahiro Maeki
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Alexander A. Khromykh
- Australian Infectious Disease Research Centre, GVN Center of Excellence, The University of Queensland and QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Andreas Suhrbier
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- Australian Infectious Disease Research Centre, GVN Center of Excellence, The University of Queensland and QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
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Ribeiro IM, Souto PCS, Borbely AU, Tanabe ELL, Cadavid A, Alvarez AM, Bueno J, Agudelo O, Robles RG, Ayala-Ramírez P, Sacerdoti F, Szasz T, Damiano AE, Ibarra C, Escudero C, Lima VV, Giachini FR. The limited knowledge of placental damage due to neglected infections: ongoing problems in Latin America. Syst Biol Reprod Med 2021; 66:151-169. [PMID: 32482148 DOI: 10.1080/19396368.2020.1753850] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The placenta works as a selective barrier, protecting the fetus from potential infections that may affect the maternal organism during pregnancy. In this review, we will discuss several challenging infections that are common within Latin American countries and that may affect the maternal-fetal interface and pose risks to fetal development. Specifically, we will focus on emerging infectious diseases including the arboviruses, malaria, leishmaniasis, and the bacterial foodborne disease caused by Shiga toxin-producing Escherichia coli. We will also highlight some topics of interest currently being studied by research groups that comprise an international effort aimed at filling the knowledge gaps in this field. These topics address the relationship between exposure to microorganisms and placental abnormalities, congenital anomalies, and complications of pregnancy. ABBREVIATIONS ADE: antibody-dependent enhancement; CCL2: monocyte chemoattractant protein-1; CCL3: macrophage inflammatory protein-1 α; CCL5: chemokine (C-C motif) ligand 5; CHIKV: chikungunya virus; DCL: diffuse cutaneous leishmaniasis; DENV: dengue virus; Gb3: glycolipid globotriaosylceramyde; HIF: hypoxia-inducible factor; HUS: hemolytic uremic syndrome; IFN: interferon; Ig: immunoglobulins; IL: interleukin; IUGR: intrauterine growth restriction; LCL: localized cutaneous leishmaniasis; LPS: lipopolysaccharid; MCL: mucocutaneous leishmaniasis; NO: nitric oxide; PCR: polymerase chain reaction; PGF: placental growth factor; PM: placental malaria; RIVATREM: Red Iberoamericana de Alteraciones Vasculares em transtornos del Embarazo; sVEGFR: soluble vascular endothelial growth factor receptor; STEC: shiga toxin-producing Escherichia coli; stx: shiga toxin protein; TNF: tumor necrosis factor; TOAS: T cell original antigenic sin; Var2CSA: variant surface antigen 2-CSA; VEGF: vascular endothelial growth factor; VL: visceral leishmaniasis; WHO: world health organization; YFV: yellow fever virus; ZIKV: Zika virus.
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Affiliation(s)
- Isabela Moreti Ribeiro
- Laboratory of Vascular Biology and Histopathology, Institute of Health Sciences and Health, Federal University of Mato Grosso , Barra Do Garcas, Brazil
| | - Paula Cristina Souza Souto
- Laboratory of Vascular Biology and Histopathology, Institute of Health Sciences and Health, Federal University of Mato Grosso , Barra Do Garcas, Brazil
| | - Alexandre U Borbely
- Cell Biology Laboratory, Institute of Health and Biological Sciences, Federal University of Alagoas , Alagoas, Brazil
| | - Eloiza Lopes Lira Tanabe
- Cell Biology Laboratory, Institute of Health and Biological Sciences, Federal University of Alagoas , Alagoas, Brazil
| | - Angela Cadavid
- Grupo Reproducción, Facultad De Medicina Universidad De Antioquia , Medellin, Colombia
| | - Angela M Alvarez
- Grupo Reproducción, Facultad De Medicina Universidad De Antioquia , Medellin, Colombia
| | - Julio Bueno
- Grupo Reproducción, Facultad De Medicina Universidad De Antioquia , Medellin, Colombia
| | - Olga Agudelo
- Grupo Salud Y Comunidad, Facultad De Medicina Universidad De Antioquia , Medellin, Colombia
| | - Reggie García Robles
- Physiological Sciences Department, Faculty of Medicine, Pontificia Universidad Javeriana , Bogotá, Colombia
| | - Paola Ayala-Ramírez
- Human Genetics Institute, Facultad De Medicina, Pontificia Universidad Javeriana , Bogotá, Colombia
| | - Flavia Sacerdoti
- Laboratorio De Fisiopatogenia, Instituto De Fisiología Y Biofísica Bernardo Houssay (IFIBIO)- CONICET- Departamento De Fisiología, Facultad De Medicina, Universidad De Buenos Aires . Buenos Aires, Argentina
| | - Theodora Szasz
- Departamento of Physiology, Augusta University , Augusta, USA
| | - Alicia E Damiano
- Cátedra De Biología Celular Y Molecular, Departamento De Ciencias Biológicas, Facultad De Farmacia Y Bioquímica, Universidad De Buenos Aires . Buenos Aires, Argentina.,Laboratorio De Biología De La Reproducción, Instituto De Fisiología Y Biofísica Bernardo Houssay (IFIBIO)- CONICET- Facultad De Medicina, Universidad De Buenos Aires . Buenos Aires, Argentina
| | - Cristina Ibarra
- Cátedra De Biología Celular Y Molecular, Departamento De Ciencias Biológicas, Facultad De Farmacia Y Bioquímica, Universidad De Buenos Aires . Buenos Aires, Argentina
| | - Carlos Escudero
- Vascular Physiology Laboratory, Group of Research and Innovation in Vascular Health (GRIVAS Health), Basic Sciences Department Faculty of Sciences, Universidad Del Bio-Bio , Chillan, Chile
| | - Victor V Lima
- Laboratory of Vascular Biology and Histopathology, Institute of Health Sciences and Health, Federal University of Mato Grosso , Barra Do Garcas, Brazil
| | - Fernanda R Giachini
- Laboratory of Vascular Biology and Histopathology, Institute of Health Sciences and Health, Federal University of Mato Grosso , Barra Do Garcas, Brazil
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Schust DJ, Bonney EA, Sugimoto J, Ezashi T, Roberts RM, Choi S, Zhou J. The Immunology of Syncytialized Trophoblast. Int J Mol Sci 2021; 22:ijms22041767. [PMID: 33578919 PMCID: PMC7916661 DOI: 10.3390/ijms22041767] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/02/2021] [Accepted: 02/06/2021] [Indexed: 02/06/2023] Open
Abstract
Multinucleate syncytialized trophoblast is found in three forms in the human placenta. In the earliest stages of pregnancy, it is seen at the invasive leading edge of the implanting embryo and has been called primitive trophoblast. In later pregnancy, it is represented by the immense, multinucleated layer covering the surface of placental villi and by the trophoblast giant cells found deep within the uterine decidua and myometrium. These syncytia interact with local and/or systemic maternal immune effector cells in a fine balance that allows for invasion and persistence of allogeneic cells in a mother who must retain immunocompetence for 40 weeks of pregnancy. Maternal immune interactions with syncytialized trophoblast require tightly regulated mechanisms that may differ depending on the location of fetal cells and their invasiveness, the nature of the surrounding immune effector cells and the gestational age of the pregnancy. Some specifically reflect the unique mechanisms involved in trophoblast cell–cell fusion (aka syncytialization). Here we will review and summarize several of the mechanisms that support healthy maternal–fetal immune interactions specifically at syncytiotrophoblast interfaces.
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Affiliation(s)
- Danny J. Schust
- Department of Obstetrics, Gynecology, University of Missouri School of Medicine, Columbia, MO 65202, USA; (T.E.); (R.M.R.); (S.C.); (J.Z.)
- Correspondence:
| | - Elizabeth A. Bonney
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Vermont College of Medicine, Burlington, VT 05405, USA;
| | - Jun Sugimoto
- Department of Obstetrics and Gynecology, Hiroshima University, Hiroshima 734-8551, Japan;
| | - Toshi Ezashi
- Department of Obstetrics, Gynecology, University of Missouri School of Medicine, Columbia, MO 65202, USA; (T.E.); (R.M.R.); (S.C.); (J.Z.)
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - R. Michael Roberts
- Department of Obstetrics, Gynecology, University of Missouri School of Medicine, Columbia, MO 65202, USA; (T.E.); (R.M.R.); (S.C.); (J.Z.)
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Sehee Choi
- Department of Obstetrics, Gynecology, University of Missouri School of Medicine, Columbia, MO 65202, USA; (T.E.); (R.M.R.); (S.C.); (J.Z.)
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Jie Zhou
- Department of Obstetrics, Gynecology, University of Missouri School of Medicine, Columbia, MO 65202, USA; (T.E.); (R.M.R.); (S.C.); (J.Z.)
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
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Aubry F, Jacobs S, Darmuzey M, Lequime S, Delang L, Fontaine A, Jupatanakul N, Miot EF, Dabo S, Manet C, Montagutelli X, Baidaliuk A, Gámbaro F, Simon-Lorière E, Gilsoul M, Romero-Vivas CM, Cao-Lormeau VM, Jarman RG, Diagne CT, Faye O, Faye O, Sall AA, Neyts J, Nguyen L, Kaptein SJF, Lambrechts L. Recent African strains of Zika virus display higher transmissibility and fetal pathogenicity than Asian strains. Nat Commun 2021; 12:916. [PMID: 33568638 PMCID: PMC7876148 DOI: 10.1038/s41467-021-21199-z] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 01/16/2021] [Indexed: 11/09/2022] Open
Abstract
The global emergence of Zika virus (ZIKV) revealed the unprecedented ability for a mosquito-borne virus to cause congenital birth defects. A puzzling aspect of ZIKV emergence is that all human outbreaks and birth defects to date have been exclusively associated with the Asian ZIKV lineage, despite a growing body of laboratory evidence pointing towards higher transmissibility and pathogenicity of the African ZIKV lineage. Whether this apparent paradox reflects the use of relatively old African ZIKV strains in most laboratory studies is unclear. Here, we experimentally compare seven low-passage ZIKV strains representing the recently circulating viral genetic diversity. We find that recent African ZIKV strains display higher transmissibility in mosquitoes and higher lethality in both adult and fetal mice than their Asian counterparts. We emphasize the high epidemic potential of African ZIKV strains and suggest that they could more easily go unnoticed by public health surveillance systems than Asian strains due to their propensity to cause fetal loss rather than birth defects. Here, the authors compare seven low passage Zika virus (ZIKV) strains representing the recently circulating viral genetic diversity of African and Asian strains and find that African ZIKV strains have higher transmissibility in mosquitoes and higher lethality in both adult and fetal mice.
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Affiliation(s)
- Fabien Aubry
- Insect-Virus Interactions Unit, Institut Pasteur, UMR2000, CNRS, Paris, France
| | - Sofie Jacobs
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Leuven, Belgium
| | - Maïlis Darmuzey
- GIGA-Stem Cells/GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), C.H.U. Sart Tilman, University of Liège, Liège, Belgium
| | - Sebastian Lequime
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Clinical and Epidemiological Virology, Leuven, Belgium.,Cluster of Microbial Ecology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
| | - Leen Delang
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Leuven, Belgium
| | - Albin Fontaine
- Unité Parasitologie et Entomologie, Département Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées (IRBA), Marseille, France.,IRD, SSA, AP-HM, UMR Vecteurs-Infections Tropicales et Méditerranéennes (VITROME), Aix Marseille University, Marseille, France.,IHU Méditerranée Infection, Marseille, France
| | - Natapong Jupatanakul
- Insect-Virus Interactions Unit, Institut Pasteur, UMR2000, CNRS, Paris, France.,National Center for Genetic Engineering and Biotechnology (BIOTEC), Pathum Thani, Thailand
| | - Elliott F Miot
- Insect-Virus Interactions Unit, Institut Pasteur, UMR2000, CNRS, Paris, France
| | - Stéphanie Dabo
- Insect-Virus Interactions Unit, Institut Pasteur, UMR2000, CNRS, Paris, France
| | - Caroline Manet
- Mouse Genetics Laboratory, Institut Pasteur, Paris, France
| | | | - Artem Baidaliuk
- Insect-Virus Interactions Unit, Institut Pasteur, UMR2000, CNRS, Paris, France.,Evolutionary Genomics of RNA Viruses Group, Institut Pasteur, Paris, France
| | - Fabiana Gámbaro
- Evolutionary Genomics of RNA Viruses Group, Institut Pasteur, Paris, France
| | | | - Maxime Gilsoul
- GIGA-Stem Cells/GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), C.H.U. Sart Tilman, University of Liège, Liège, Belgium
| | - Claudia M Romero-Vivas
- Laboratorio de Enfermedades Tropicales, Departamento de Medicina, Fundación Universidad del Norte, Barranquilla, Colombia
| | | | - Richard G Jarman
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Cheikh T Diagne
- Arbovirus and Viral Hemorrhagic Fevers Unit, Institut Pasteur Dakar, Dakar, Senegal
| | - Oumar Faye
- Arbovirus and Viral Hemorrhagic Fevers Unit, Institut Pasteur Dakar, Dakar, Senegal
| | - Ousmane Faye
- Arbovirus and Viral Hemorrhagic Fevers Unit, Institut Pasteur Dakar, Dakar, Senegal
| | - Amadou A Sall
- Arbovirus and Viral Hemorrhagic Fevers Unit, Institut Pasteur Dakar, Dakar, Senegal
| | - Johan Neyts
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Leuven, Belgium
| | - Laurent Nguyen
- GIGA-Stem Cells/GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), C.H.U. Sart Tilman, University of Liège, Liège, Belgium
| | - Suzanne J F Kaptein
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Leuven, Belgium.
| | - Louis Lambrechts
- Insect-Virus Interactions Unit, Institut Pasteur, UMR2000, CNRS, Paris, France.
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Post-Vaccination Yellow Fever Antiserum Reduces Zika Virus in Embryoid Bodies When Placental Cells are Present. Vaccines (Basel) 2020; 8:vaccines8040752. [PMID: 33322247 PMCID: PMC7768546 DOI: 10.3390/vaccines8040752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/09/2020] [Accepted: 11/29/2020] [Indexed: 11/18/2022] Open
Abstract
Zika virus (ZIKV) is a flavivirus that originated in Africa but emerged in Latin America in 2015. In this region, other flaviviruses such as Dengue (DENV), West Nile, and Yellow Fever virus (YFV) also circulate, allowing for possible antigenic cross-reactivity to impact viral infections and immune responses. Studies have found antibody-mediated enhancement between DENV and ZIKV, but the impact of YFV antibodies on ZIKV infection has not been fully explored. ZIKV infections cause congenital syndromes, such as microcephaly, necessitating further research into ZIKV vertical transmission through the placental barrier. Recent advancements in biomedical engineering have generated co-culture methods that allow for the in vitro recapitulation of the maternal–fetal interface. This study utilized a transwell assay, which was a co-culture model utilizing human placental syncytiotrophoblasts, fetal umbilical cells, and a differentiating embryoid body, to replicate the maternal–fetal axis. To determine if cross-reactive YFV vaccine antibodies impacted the pathogenesis of ZIKV across the maternal–fetal axis, syncytiotrophoblasts were inoculated with ZIKV or ZIKV incubated with YFV vaccine antisera, and the viral load was measured 72 h post-inoculation. Here, we report that BeWo and HUVEC cells were permissive to ZIKV and that the impact of YFV post-vaccination antibodies on ZIKV replication was cell line-dependent. Embryoid bodies were also permissive to ZIKV, and the presence of YFV antibodies collected 4–14 months post-vaccination reduced ZIKV infection when placental cells were present. However, when directly infected with ZIKV, the embryoid bodies displayed significantly increased viral loads in the presence of YFV antiserum taken 30 days post-vaccination. The data show that each of the cell lines and EBs have a unique response to ZIKV complexed with post-vaccination serum, suggesting there may be cell-specific mechanisms that impact congenital ZIKV infections. Since ZIKV infections can cause severe congenital syndromes, it is crucial to understand any potential enhancement or protection offered from cross-reactive, post-vaccination antibodies.
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Tabari D, Scholl C, Steffens M, Weickhardt S, Elgner F, Bender D, Herrlein ML, Sabino C, Semkova V, Peitz M, Till A, Brüstle O, Hildt E, Stingl J. Impact of Zika Virus Infection on Human Neural Stem Cell MicroRNA Signatures. Viruses 2020; 12:E1219. [PMID: 33121145 PMCID: PMC7693339 DOI: 10.3390/v12111219] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/09/2020] [Accepted: 10/23/2020] [Indexed: 12/11/2022] Open
Abstract
Zika virus (ZIKV) is a mosquito-borne virus, which can cause brain abnormalities in newborns, including microcephaly. MicroRNAs (miRNAs) are small non-coding RNAs, which post- transcriptionally regulate gene expression. They are involved in various processes including neurological development and host responses to viral infection, but their potential role in ZIKV pathogenesis remains poorly understood. MiRNAs can be incorporated into extracellular vesicles (EVs) and mediate cell-to-cell communication. While it is well known that in viral infections EVs carrying miRNAs can play a crucial role in disease pathogenesis, ZIKV effects on EV-delivered miRNAs and their contribution to ZIKV pathogenesis have not been elucidated. In the present study, we profiled intracellular and EV-derived miRNAs by next generation sequencing and analyzed the host mRNA transcriptome of neural stem cells during infection with ZIKV Uganda and French Polynesia strains. We identified numerous miRNAs, including miR-4792, which were dysregulated at the intracellular level and had altered levels in EVs during ZIKV infection. Integrated analyses of differentially expressed genes and miRNAs showed that ZIKV infection had an impact on processes associated with neurodevelopment and oxidative stress. Our results provide insights into the roles of intracellular and EV-associated host miRNAs in ZIKV pathogenesis.
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Affiliation(s)
- Denna Tabari
- Research Division, Federal Institute for Drugs and Medical Devices, 53175 Bonn, Germany; (D.T.); (M.S.); (S.W.)
| | - Catharina Scholl
- Research Division, Federal Institute for Drugs and Medical Devices, 53175 Bonn, Germany; (D.T.); (M.S.); (S.W.)
| | - Michael Steffens
- Research Division, Federal Institute for Drugs and Medical Devices, 53175 Bonn, Germany; (D.T.); (M.S.); (S.W.)
| | - Sandra Weickhardt
- Research Division, Federal Institute for Drugs and Medical Devices, 53175 Bonn, Germany; (D.T.); (M.S.); (S.W.)
| | - Fabian Elgner
- Department of Virology, Paul-Ehrlich-Institut, 63225 Langen, Germany; (F.E.); (D.B.); (M.-L.H.); (C.S.); (E.H.)
| | - Daniela Bender
- Department of Virology, Paul-Ehrlich-Institut, 63225 Langen, Germany; (F.E.); (D.B.); (M.-L.H.); (C.S.); (E.H.)
| | - Marie-Luise Herrlein
- Department of Virology, Paul-Ehrlich-Institut, 63225 Langen, Germany; (F.E.); (D.B.); (M.-L.H.); (C.S.); (E.H.)
| | - Catarina Sabino
- Department of Virology, Paul-Ehrlich-Institut, 63225 Langen, Germany; (F.E.); (D.B.); (M.-L.H.); (C.S.); (E.H.)
| | - Vesselina Semkova
- Institute of Reconstructive Neurobiology, LIFE & BRAIN Center, University of Bonn Medical Faculty & University Hospital Bonn, 53127 Bonn, Germany; (V.S.); (M.P.); (A.T.); (O.B.)
| | - Michael Peitz
- Institute of Reconstructive Neurobiology, LIFE & BRAIN Center, University of Bonn Medical Faculty & University Hospital Bonn, 53127 Bonn, Germany; (V.S.); (M.P.); (A.T.); (O.B.)
- Cell Programming Core Facility, Medical Faculty, University of Bonn, 53172 Bonn, Germany
| | - Andreas Till
- Institute of Reconstructive Neurobiology, LIFE & BRAIN Center, University of Bonn Medical Faculty & University Hospital Bonn, 53127 Bonn, Germany; (V.S.); (M.P.); (A.T.); (O.B.)
| | - Oliver Brüstle
- Institute of Reconstructive Neurobiology, LIFE & BRAIN Center, University of Bonn Medical Faculty & University Hospital Bonn, 53127 Bonn, Germany; (V.S.); (M.P.); (A.T.); (O.B.)
| | - Eberhard Hildt
- Department of Virology, Paul-Ehrlich-Institut, 63225 Langen, Germany; (F.E.); (D.B.); (M.-L.H.); (C.S.); (E.H.)
| | - Julia Stingl
- Department of Clinical Pharmacology, University Hospital, RWTH Aachen University, 52074 Aachen, Germany;
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N-glycosylation in the Pre-Membrane Protein Is Essential for the Zika Virus Life Cycle. Viruses 2020; 12:v12090925. [PMID: 32842538 PMCID: PMC7552079 DOI: 10.3390/v12090925] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 02/05/2023] Open
Abstract
Asparagine (N)-linked protein glycosylation plays an important role in protein synthesis and modification. Two Zika virus (ZIKV) structural proteins, the pre-membrane (prM) and envelope (E) protein are N-glycosylated. The prM protein of all ZIKV strains contains a single N-linked glycosylation site, while not all strains contain an N-linked site in the E protein. Our aim was to examine the impact of prM and E N-linked glycosylation on ZIKV infectivity and cell trafficking. Using a ZIKV infectious clone, we found that when the N-glycan sites were removed, the prM- and the prM/E-double mutants did not produce an infectious virus in the supernatant. Further, by using ZIKV prME constructs, we found that N-glycosylation was necessary for effective secretion of ZIKV virions. The absence of the N-glycan on prM or E caused protein aggregation in the rough endoplasmatic reticulum (ER) compartment. The aggregation was more pronounced for the prM-mutation, and the mutant virus lost the ER-Golgi intermediate compartment (ERGIC) localization. In addition, lack of the N-glycan on prM induced nuclear translocation of CCAAT-enhancer-binding protein homologous protein (CHOP), an ER stress marker. To conclude, we show that the prM N-glycan is essential for the ZIKV infectious cycle, and plays an important role in viral protein trafficking, protein folding, and virion assembly.
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Gobillot TA, Humes D, Sharma A, Kikawa C, Overbaugh J. The Robust Restriction of Zika Virus by Type-I Interferon in A549 Cells Varies by Viral Lineage and Is Not Determined by IFITM3. Viruses 2020; 12:v12050503. [PMID: 32370187 PMCID: PMC7290589 DOI: 10.3390/v12050503] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 12/18/2022] Open
Abstract
Type-I interferon (IFN-I) is a major antiviral host response but its impact on Zika virus (ZIKV) replication is not well defined, particularly as it relates to different circulating strains. Interferon stimulated genes (ISGs) that inhibit ZIKV, such as IFITM3, have been identified largely using overexpression studies. Here, we tested whether diverse ZIKV strains differed in their susceptibility to IFN-I-mediated restriction and the contribution of IFITM3 to this restriction. We identified a robust IFN-I-mediated antiviral effect on ZIKV replication (>100-fold reduction) in A549 cells, a commonly used cell line to study ZIKV replication. The extent of inhibition depended on the IFN-I type and the virus strain tested. Viruses from the American pathogenic outbreak were more sensitive to IFNα (p = 0.049) and IFNβ (p = 0.09) than African-lineage strains, which have not been linked to severe pathogenesis. Knocking out IFITM3 expression did not dampen the IFN-I antiviral effect and only high overexpression of IFITM3 led to ZIKV inhibition. Moreover, IFITM3 expression levels in different cells were not associated with IFN-mediated ZIKV inhibition. Taken together, our findings indicate that there is a robust IFN-I-mediated antiviral effect on ZIKV infection, particularly for American viruses, that is not due to IFITM3. A549 cells, which are a commonly used cell line to study ZIKV replication, present an opportunity for the discovery of novel antiviral ISGs against ZIKV.
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Affiliation(s)
- Theodore A. Gobillot
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (T.A.G.); (D.H.); (A.S.); (C.K.)
- Medical Scientist Training Program, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - Daryl Humes
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (T.A.G.); (D.H.); (A.S.); (C.K.)
| | - Amit Sharma
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (T.A.G.); (D.H.); (A.S.); (C.K.)
| | - Caroline Kikawa
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (T.A.G.); (D.H.); (A.S.); (C.K.)
| | - Julie Overbaugh
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (T.A.G.); (D.H.); (A.S.); (C.K.)
- Correspondence:
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36
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Bhushan G, Lim L, Bird I, Chothe SK, Nissly RH, Kuchipudi SV. Iminosugars With Endoplasmic Reticulum α-Glucosidase Inhibitor Activity Inhibit ZIKV Replication and Reverse Cytopathogenicity in vitro. Front Microbiol 2020; 11:531. [PMID: 32373079 PMCID: PMC7179685 DOI: 10.3389/fmicb.2020.00531] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 03/12/2020] [Indexed: 11/26/2022] Open
Abstract
Zika virus (ZIKV), a vector-borne virus of the family Flaviviridae, continues to spread and remains a significant global public health threat. Currently, there are no approved vaccines or antivirals against ZIKV. We investigated the anti-ZIKV ability of three iminosugars with endoplasmic reticulum α-glucosidase inhibitor (ER-AGI) activity, namely deoxynojirimycin (DNJ), castanospermine, and celgosivir. None of the three iminosugars showed any significant cytotoxicity in Vero or human microglia CHME3 cells when applied for 72 h at concentrations up to 100 μM. Iminosugar treatment of Vero or CHME3 cells prior to ZIKV infection resulted in significant inhibition of ZIKV replication over 48 h. Reduction in ZIKV replication in iminosugar-treated cells was not associated with any significant change in the expression levels of key antiviral genes. Following infection with three different strains of ZIKV, iminosugar-treated Vero or CHME3 cells showed no cell death, whereas vehicle-treated control cells exhibited 50–60% cell death at 72 h post-infection (hpi). While there was no significant difference in apoptosis between iminosugar-treated and control cells, iminosugar-treated cells exhibited a substantial reduction of necrosis at 72 hpi following ZIKV infection. In summary, iminosugars with ER-AGI activity inhibit ZIKV replication and significantly reduce necrosis without altering the antiviral gene expression and apoptosis of infected human cells. The results of this study strongly suggest that iminosugars are promising anti-ZIKV antiviral agents and such warrant further in vivo studies.
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Affiliation(s)
- Gitanjali Bhushan
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, United States
| | - Levina Lim
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, United States
| | - Ian Bird
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, United States
| | - Shubhada K Chothe
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, United States
| | - Ruth H Nissly
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, United States
| | - Suresh V Kuchipudi
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, United States
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Block LN, Aliota MT, Friedrich TC, Schotzko ML, Mean KD, Wiepz GJ, Golos TG, Schmidt JK. Embryotoxic impact of Zika virus in a rhesus macaque in vitro implantation model†. Biol Reprod 2020; 102:806-816. [PMID: 31901091 DOI: 10.1093/biolre/ioz236] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/23/2019] [Accepted: 12/31/2019] [Indexed: 12/29/2022] Open
Abstract
Zika virus (ZIKV) infection is associated with adverse pregnancy outcomes in humans, and infection in the first trimester can lead to miscarriage and stillbirth. Vertical and sexual transmissions of ZIKV have been demonstrated, yet the impact of infection during the initial stages of pregnancy remains unexplored. Here we defined the impact of ZIKV on early embryonic and placental development with a rhesus macaque model. During in vitro fertilization (IVF), macaque gametes were inoculated with a physiologically relevant dose of 5.48log10 plaque-forming units (PFU) of Zika virus/H.sapiens-tc/PUR/2015/PRVABC59_v3c2. Exposure at fertilization did not alter blastocyst formation rates compared to controls. To determine the impact of ZIKV exposure at implantation, hatched blastocysts were incubated with 3.26log10, 4.26log10, or 5.26log10 PFU, or not exposed to ZIKV, followed by extended embryo culture for 10 days. ZIKV exposure negatively impacted attachment, growth, and survival in comparison to controls, with exposure to 5.26log10 PFU ZIKV resulting in embryonic degeneration by day 2. Embryonic secretion of pregnancy hormones was lower in ZIKV-exposed embryos. Increasing levels of infectious virus were detected in the culture media post-exposure, suggesting that the trophectoderm is susceptible to productive ZIKV infection. These results demonstrate that ZIKV exposure severely impacts the zona-free blastocyst, whereas exposure at the time of fertilization does not hinder blastocyst formation. Overall, early stages of pregnancy may be profoundly sensitive to infection and pregnancy loss, and the negative impact of ZIKV infection on pregnancy outcomes may be underestimated.
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Affiliation(s)
- Lindsey N Block
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI, USA.,Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Matthew T Aliota
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul, MN, USA
| | - Thomas C Friedrich
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI, USA.,Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, USA
| | - Michele L Schotzko
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Katherine D Mean
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Gregory J Wiepz
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Thaddeus G Golos
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI, USA.,Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA and.,Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI, USA
| | - Jenna Kropp Schmidt
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI, USA
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Zika Virus Dissemination from the Midgut of Aedes aegypti is Facilitated by Bloodmeal-Mediated Structural Modification of the Midgut Basal Lamina. Viruses 2019; 11:v11111056. [PMID: 31739432 PMCID: PMC6893695 DOI: 10.3390/v11111056] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/07/2019] [Accepted: 11/12/2019] [Indexed: 12/28/2022] Open
Abstract
The arboviral disease cycle requires that key tissues in the arthropod vector become persistently infected with the virus. The midgut is the first organ in the mosquito that needs to be productively infected with an orally acquired virus. Following midgut infection, the virus then disseminates to secondary tissues including the salivary glands. Once these are productively infected, the mosquito is able to transmit the virus to a vertebrate host. Recently, we described the midgut dissemination pattern for chikungunya virus in Aedes aegypti. Here we assess the dissemination pattern in the same mosquito species for Zika virus (ZIKV), a human pathogenic virus belonging to the Flaviviridae. ZIKV infection of secondary tissues, indicative of dissemination from the midgut, was not observed before 72 h post infectious bloodmeal (pibm). Virion accumulation at the midgut basal lamina (BL) was only sporadic, although at 96–120 h pibm, virions were frequently observed between strands of the BL indicative of their dissemination. Our data suggest that ZIKV dissemination from the mosquito midgut occurs after digestion of the bloodmeal. Using gold-nanoparticles of 5 nm and 50 nm size, we show that meal ingestion leads to severe midgut tissue distention, causing the mesh width of the BL to remain enlarged after complete digestion of the meal. This could explain how ZIKV can exit the midgut via the BL after bloodmeal digestion. Ingestion of a subsequent, non-infectious bloodmeal five days after acquisition of an initial, dengue 4 virus containing bloodmeal resulted in an increased number of virions present in the midgut epithelium adjacent to the BL. Thus, subsequent bloodmeal ingestion by an infected mosquito may primarily stimulate de novo synthesis of virions leading to increased viral titers in the vector.
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Cataneo AHD, Kuczera D, Koishi AC, Zanluca C, Silveira GF, Arruda TBD, Suzukawa AA, Bortot LO, Dias-Baruffi M, Verri WA, Robert AW, Stimamiglio MA, Duarte Dos Santos CN, Wowk PF, Bordignon J. The citrus flavonoid naringenin impairs the in vitro infection of human cells by Zika virus. Sci Rep 2019; 9:16348. [PMID: 31705028 PMCID: PMC6841724 DOI: 10.1038/s41598-019-52626-3] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 10/16/2019] [Indexed: 12/16/2022] Open
Abstract
The Zika virus (ZIKV) is an arthropod-borne virus that belongs to the Flaviviridae family. The ZIKV infection is usually asymptomatic or is associated with mild clinical manifestations; however, increased numbers of cases of microcephaly and birth defects have been recently reported. To date, neither a vaccine nor an antiviral treatment has become available to control ZIKV replication. Among the natural compounds recognized for their medical properties, flavonoids, which can be found in fruits and vegetables, have been found to possess biological activity against a variety of viruses. Here, we demonstrate that the citrus flavanone naringenin (NAR) prevented ZIKV infection in human A549 cells in a concentration-dependent and ZIKV-lineage independent manner. NAR antiviral activity was also observed when primary human monocyte-derived dendritic cells were infected by ZIKV. NAR displayed its antiviral activity when the cells were treated after infection, suggesting that NAR acts on the viral replication or assembly of viral particles. Moreover, a molecular docking analysis suggests a potential interaction between NAR and the protease domain of the NS2B-NS3 protein of ZIKV which could explain the anti-ZIKV activity of NAR. Finally, the results support the potential of NAR as a suitable candidate molecule for developing anti-ZIKV treatments.
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Affiliation(s)
| | - Diogo Kuczera
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Andrea Cristine Koishi
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Camila Zanluca
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | | | - Thais Bonato de Arruda
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Andréia Akemi Suzukawa
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Leandro Oliveira Bortot
- Laboratório de Física Biológica, Departamento de Física e Química, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marcelo Dias-Baruffi
- Laboratório de Glicoimunologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Waldiceu Aparecido Verri
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Paraná, Brazil
| | - Anny Waloski Robert
- Laboratório de Células Tronco, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | | | | | - Pryscilla Fanini Wowk
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil.
| | - Juliano Bordignon
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil.
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40
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Pre- and peri-implantation Zika virus infection impairs fetal development by targeting trophectoderm cells. Nat Commun 2019; 10:4155. [PMID: 31519912 PMCID: PMC6744420 DOI: 10.1038/s41467-019-12063-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 08/19/2019] [Indexed: 12/23/2022] Open
Abstract
Zika virus (ZIKV) infection results in an increased risk of spontaneous abortion and poor intrauterine growth although the underlying mechanisms remain undetermined. Little is known about the impact of ZIKV infection during the earliest stages of pregnancy, at pre- and peri-implantation, because most current ZIKV pregnancy studies have focused on post-implantation stages. Here, we demonstrate that trophectoderm cells of pre-implantation human and mouse embryos can be infected with ZIKV, and propagate virus causing neural progenitor cell death. These findings are corroborated by the dose-dependent nature of ZIKV susceptibility of hESC-derived trophectoderm cells. Single blastocyst RNA-seq reveals key transcriptional changes upon ZIKV infection, including nervous system development, prior to commitment to the neural lineage. The pregnancy rate of mice is >50% lower in pre-implantation infection than infection at E4.5, demonstrating that pre-implantation ZIKV infection leads to miscarriage. Cumulatively, these data elucidate a previously unappreciated association of pre- and peri-implantation ZIKV infection and microcephaly.
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41
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Rosa RL, Santi L, Berger M, Tureta EF, Quincozes-Santos A, Souza DO, Guimarães JA, Beys-da-Silva WO. ZIKAVID-Zika virus infection database: a new platform to analyze the molecular impact of Zika virus infection. J Neurovirol 2019; 26:77-83. [PMID: 31512145 DOI: 10.1007/s13365-019-00799-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 08/06/2019] [Accepted: 08/22/2019] [Indexed: 12/11/2022]
Abstract
The recent outbreak of Zika virus (ZIKV) in Brazil and other countries globally demonstrated the relevance of ZIKV studies. During and after this outbreak, there was an intense increase in scientific production on ZIKV infections, especially toward alterations promoted by the infection and related to clinical outcomes. Considering this massive amount of new data, mainly thousands of genes and proteins whose expression is impacted by ZIKV infection, the ZIKA Virus Infection Database (ZIKAVID) was created. ZIKAVID is an online database that comprises all genes or proteins, and associated information, for which expression was experimentally measured and found to be altered after ZIKV infection. The database, available at https://zikavid.org, contains 16,984 entries of gene expression measurements from a total of 7348 genes. It allows users to easily perform searches for different experimental hosts (cell lines, tissues, and animal models), ZIKV strains (African, Asian, and Brazilian), and target molecules (messenger RNA [mRNA] and protein), among others, used in differential expression studies regarding ZIKV infection. In this way, the ZIKAVID will serve as an additional and important resource to improve the characterization of the molecular impact and pathogenesis associated with ZIKV infection.
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Affiliation(s)
- Rafael L Rosa
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil.,Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Lucélia Santi
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil.,Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Markus Berger
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Emanuela F Tureta
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil
| | - André Quincozes-Santos
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Diogo O Souza
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Jorge A Guimarães
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Walter O Beys-da-Silva
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752 suit 709, Porto Alegre, RS, Brazil. .,Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
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42
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Agrelli A, de Moura RR, Crovella S, Brandão LAC. Mutational landscape of Zika virus strains worldwide and its structural impact on proteins. Gene 2019; 708:57-62. [PMID: 31128224 DOI: 10.1016/j.gene.2019.05.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 04/23/2019] [Accepted: 05/20/2019] [Indexed: 11/24/2022]
Abstract
Zika virus (ZIKV) has spread globally and has been linked to the onset of microcephaly and other brain abnormalities. The ZIKV genome consists of an ~10.7 kb positive-stranded RNA molecule that encodes three structural (C, prM and E) and seven nonstructural (5'-NS1-NS2A-NS2B-NS3- NS4A/2K-NS4B-NS5-3') proteins. In this work, we looked for genetic variants in 485 ZIKV complete genomes from GenBank (NCBI) and performed a computational systematic approach using MAESTROweb server to assess the impact of nonsynonymous mutations in ZIKV proteins (C, M, E, NS1, NS2A, NS2B-NS3 protease, NS3 helicase and NS5). Then, we merged the data and correlated it with the phenotypic reports of ZIKV circulating strains. The sensitivity profile of the proteins showed 96 mutational hotspots. We found 22 relevant mutations in proteins C (I80T), NS2A (I34M/T/V, I45V, I80T/V, L113F, A117V, I118V, L128P, V143A, T151A, M199I/V, R207K and L208I) and NS3 helicase (D436G, Y498H, R525K, Q528R and R583K) of the circulating strains. Our analysis exploited the impact of nonsynonymous mutations on ZIKV proteins, their structural and functional insights. The results presented here could advance our current understanding on ZIKV proteins functions and pathogenesis.
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Affiliation(s)
- Almerinda Agrelli
- Laboratory of Immunopathology Keizo Asami (LIKA) - Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, Brazil.
| | - Ronald Rodrigues de Moura
- Department of Genetics - Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, Brazil.
| | - Sergio Crovella
- Laboratory of Immunopathology Keizo Asami (LIKA) - Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, Brazil; Department of Genetics - Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, Brazil.
| | - Lucas André Cavalcanti Brandão
- Laboratory of Immunopathology Keizo Asami (LIKA) - Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, Brazil; Department of Pathology - Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, Brazil.
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43
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Dinh TC, Bac ND, Minh LB, Ngoc VTN, Pham VH, Vo HL, Tien NLB, Van Thanh V, Tao Y, Show PL, Chu DT. Zika virus in Vietnam, Laos, and Cambodia: are there health risks for travelers? Eur J Clin Microbiol Infect Dis 2019; 38:1585-1590. [PMID: 31044332 DOI: 10.1007/s10096-019-03563-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 04/09/2019] [Indexed: 11/29/2022]
Abstract
Vietnam, Laos, and Cambodia have reported first cases of Zika virus (ZIKV) infection since 2010 (Cambodia) and 2016 (Vietnam and Laos). One case of ZIKV-related microcephaly was recognized among a hundred infected cases in these areas, raising a great concern about the health risk related to this virus infection. At least 5 cases of ZIKV infection among travelers to Vietnam, Laos, and Cambodia were recorded. It is noticeable that ZIKV in these areas can cause birth defects. This work aims to discuss the current epidemics of ZIKV in Vietnam, Laos, and Cambodia and update the infection risk of ZIKV for travelers to these areas.
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Affiliation(s)
- Thien Chu Dinh
- Institute for Research and Development, Duy Tan University, 03 QuangTrung, Danang, Vietnam
| | | | - Le Bui Minh
- NTT Hi-tech Institute, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh St., Ward 13, District 4, Ho Chi Minh City, Vietnam
| | | | - Van-Huy Pham
- AI Lab, Faculty of Information Technology, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
| | - Hoang-Long Vo
- Institute for Preventive Medicine & Public Health, Hanoi Medical University, Hanoi, Vietnam
| | - Nguyen Le Bao Tien
- Institute of Orthopaedics and Trauma Surgery, Viet Duc Hospital, Hanoi, Vietnam
| | - Vo Van Thanh
- Institute of Orthopaedics and Trauma Surgery, Viet Duc Hospital, Hanoi, Vietnam
| | - Yang Tao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 8, 210095, China
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, JalanBroga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Dinh-Toi Chu
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam.
- Faculty of Biology, Hanoi National University of Education, Hanoi, Vietnam.
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44
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Diteepeng T, Khongwichit S, Paemanee A, Roytrakul S, Smith DR. Proteomic analysis of monkey kidney LLC-MK2 cells infected with a Thai strain Zika virus. Arch Virol 2019; 164:725-737. [PMID: 30612200 DOI: 10.1007/s00705-018-04137-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 11/26/2018] [Indexed: 12/12/2022]
Abstract
Zika virus (ZIKV) has been endemic in Southeast Asian countries for several years, but the presence of the virus has not been associated with significant outbreaks of infection unlike other countries around the world where the Asian lineage ZIKV was introduced recently. However, few studies have been undertaken using the endemic virus. The Thai isolate was shown to have a similar tissue tropism to an African isolate of ZIKV, albeit that the Thai isolate infected cells at a lower level as compared to the African isolate. To further understand the pathogenesis of the Thai isolate, a 2D-gel proteomic analysis was undertaken of ZIKV infected LLC-MK2 cells. Seven proteins (superoxide dismutase [Mn], peroxiredoxin 2, ATP synthase subunit alpha, annexin A5 and annexin A1, carnitine o-palmitoyltransferase 2 and cytoskeleton-associated protein 2) were identified as differentially regulated. Of four proteins selected for validation, three (superoxide dismutase [Mn], peroxiredoxin 2, ATP synthase subunit alpha, and annexin A1) were shown to be differentially regulated at both the transcriptional and translational levels. The proteins identified were primarily involved in energy production both directly, and indirectly through mediation of autophagy, as well as in the response to oxidative stress, possibly occurring as a consequence of increased energy production. This study provides further new information on the pathogenesis of ZIKV.
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Affiliation(s)
- Thamonwan Diteepeng
- Molecular Pathology Laboratory, Institute of Molecular Biosciences, Mahidol University, Salaya Campus, 25/25 Phuttamonton Sai 4, Salaya, Nakorn Pathom, 73170, Thailand
| | - Sarawut Khongwichit
- Molecular Pathology Laboratory, Institute of Molecular Biosciences, Mahidol University, Salaya Campus, 25/25 Phuttamonton Sai 4, Salaya, Nakorn Pathom, 73170, Thailand
| | - Atchara Paemanee
- Molecular Pathology Laboratory, Institute of Molecular Biosciences, Mahidol University, Salaya Campus, 25/25 Phuttamonton Sai 4, Salaya, Nakorn Pathom, 73170, Thailand
| | - Sittiruk Roytrakul
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Duncan R Smith
- Molecular Pathology Laboratory, Institute of Molecular Biosciences, Mahidol University, Salaya Campus, 25/25 Phuttamonton Sai 4, Salaya, Nakorn Pathom, 73170, Thailand.
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Simonin Y, Erkilic N, Damodar K, Clé M, Desmetz C, Bolloré K, Taleb M, Torriano S, Barthelemy J, Dubois G, Lajoix AD, Foulongne V, Tuaillon E, Van de Perre P, Kalatzis V, Salinas S. Zika virus induces strong inflammatory responses and impairs homeostasis and function of the human retinal pigment epithelium. EBioMedicine 2019; 39:315-331. [PMID: 30579862 PMCID: PMC6354710 DOI: 10.1016/j.ebiom.2018.12.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/19/2018] [Accepted: 12/06/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Zika virus (ZIKV) has recently re-emerged as a pathogenic agent with epidemic capacities as was well illustrated in South America. Because of the extent of this health crisis, a number of more serious symptoms have become associated with ZIKV infection than what was initially described. In particular, neuronal and ocular disorders have been characterized, both in infants and in adults. Notably, the macula and the retina can be strongly affected by ZIKV, possibly by a direct effect of the virus. This is supported by the detection of replicative and infectious virus in lachrimal fluid in human patients and mouse models. METHODS Here, we used an innovative, state-of-the-art iPSC-derived human retinal pigment epithelium (RPE) model to study ZIKV retinal impairment. FINDINGS We showed that the human RPE is highly susceptible to ZIKV infection and that a ZIKV African strain was more virulent and led to a more potent epithelium disruption and stronger anti-viral response than an Asian strain, suggesting lineage differences. Moreover, ZIKV infection led to impaired membrane dynamics involved in endocytosis, organelle biogenesis and potentially secretion, key mechanisms of RPE homeostasis and function. INTERPRETATION Taken together, our results suggest that ZIKV has a highly efficient ocular tropism, which creates a strong inflammatory environment that could have acute or chronic adverse effects. FUND: This work was funded by Retina France, REACTing and La Région Languedoc-Roussillon.
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Affiliation(s)
- Yannick Simonin
- Pathogenesis and Control of Chronic Infections, INSERM, Etablissement Français du Sang, University of Montpellier, Montpellier, France
| | - Nejla Erkilic
- Institute for Neurosciences of Montpellier, INSERM, University of Montpellier, Montpellier, France
| | - Krishna Damodar
- Institute for Neurosciences of Montpellier, INSERM, University of Montpellier, Montpellier, France
| | - Marion Clé
- Pathogenesis and Control of Chronic Infections, INSERM, Etablissement Français du Sang, University of Montpellier, Montpellier, France
| | - Caroline Desmetz
- BioCommunication en CardioMétabolique, University of Montpellier, Montpellier, France
| | - Karine Bolloré
- Pathogenesis and Control of Chronic Infections, INSERM, Etablissement Français du Sang, University of Montpellier, Montpellier, France
| | - Mehdi Taleb
- Pathogenesis and Control of Chronic Infections, INSERM, Etablissement Français du Sang, University of Montpellier, Montpellier, France
| | - Simona Torriano
- Institute for Neurosciences of Montpellier, INSERM, University of Montpellier, Montpellier, France
| | - Jonathan Barthelemy
- Pathogenesis and Control of Chronic Infections, INSERM, Etablissement Français du Sang, University of Montpellier, Montpellier, France
| | - Grégor Dubois
- Institute for Neurosciences of Montpellier, INSERM, University of Montpellier, Montpellier, France
| | - Anne Dominique Lajoix
- BioCommunication en CardioMétabolique, University of Montpellier, Montpellier, France
| | - Vincent Foulongne
- Pathogenesis and Control of Chronic Infections. INSERM, University of Montpellier, Etablissement Français du Sang, CHU Montpellier, Montpellier, France
| | - Edouard Tuaillon
- Pathogenesis and Control of Chronic Infections. INSERM, University of Montpellier, Etablissement Français du Sang, CHU Montpellier, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic Infections. INSERM, University of Montpellier, Etablissement Français du Sang, CHU Montpellier, Montpellier, France
| | - Vasiliki Kalatzis
- Institute for Neurosciences of Montpellier, INSERM, University of Montpellier, Montpellier, France.
| | - Sara Salinas
- Pathogenesis and Control of Chronic Infections, INSERM, Etablissement Français du Sang, University of Montpellier, Montpellier, France.
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Contemporary Zika Virus Isolates Induce More dsRNA and Produce More Negative-Strand Intermediate in Human Astrocytoma Cells. Viruses 2018; 10:v10120728. [PMID: 30572570 PMCID: PMC6316034 DOI: 10.3390/v10120728] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 01/01/2023] Open
Abstract
The recent emergence and rapid geographic expansion of Zika virus (ZIKV) poses a significant challenge for public health. Although historically causing only mild febrile illness, recent ZIKV outbreaks have been associated with more severe neurological complications, such as Guillain-Barré syndrome and fetal microcephaly. Here we demonstrate that two contemporary (2015) ZIKV isolates from Puerto Rico and Brazil may have increased replicative fitness in human astrocytoma cells. Over a single infectious cycle, the Brazilian isolate replicates to higher titers and induces more severe cytopathic effects in human astrocytoma cells than the historical African reference strain or an early Asian lineage isolate. In addition, both contemporary isolates induce significantly more double-stranded RNA in infected astrocytoma cells, despite similar numbers of infected cells across isolates. Moreover, when we quantified positive- and negative-strand viral RNA, we found that the Asian lineage isolates displayed substantially more negative-strand replicative intermediates than the African lineage isolate in human astrocytoma cells. However, over multiple rounds of infection, the contemporary ZIKV isolates appear to be impaired in cell spread, infecting a lower proportion of cells at a low MOI despite replicating to similar or higher titers. Taken together, our data suggests that contemporary ZIKV isolates may have evolved mechanisms that allow them to replicate with increased efficiency in certain cell types, thereby highlighting the importance of cell-intrinsic factors in studies of viral replicative fitness.
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Zhang L, Ji W, Lyu S, Qiao L, Luo G. Tet-Inducible Production of Infectious Zika Virus from the Full-Length cDNA Clones of African- and Asian-Lineage Strains. Viruses 2018; 10:v10120700. [PMID: 30544871 PMCID: PMC6316044 DOI: 10.3390/v10120700] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/01/2018] [Accepted: 12/05/2018] [Indexed: 12/20/2022] Open
Abstract
Zika virus (ZIKV) is a mosquito-borne flavivirus that has emerged as an important human viral pathogen, causing congenital malformation including microcephaly among infants born to mothers infected with the virus during pregnancy. Phylogenetic analysis suggested that ZIKV can be classified into African and Asian lineages. In this study, we have developed a stable plasmid-based reverse genetic system for robust production of both ZIKV prototype African-lineage MR766 and clinical Asian-lineage FSS13025 strains using a tetracycline (Tet)-controlled gene expression vector. Transcription of the full-length ZIKV RNA is under the control of the Tet-responsive Ptight promoter at the 5′ end and an antigenomic ribozyme of hepatitis delta virus at the 3′ end. The transcription of infectious ZIKV RNA genome was efficiently induced by doxycycline. This novel ZIKV reverse genetics system will be valuable for the study of molecular viral pathogenesis of ZIKV and the development of new vaccines against ZIKV infection.
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Affiliation(s)
- Lizhou Zhang
- Department of Microbiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL 35294, USA.
| | - Wei Ji
- Department of Microbiology, Peking University Health Science Center School of Basic Medical Sciences, Beijing 100191, China.
| | - Shuang Lyu
- Department of Microbiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL 35294, USA.
| | - Luhua Qiao
- Department of Microbiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL 35294, USA.
| | - Guangxiang Luo
- Department of Microbiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL 35294, USA.
- Department of Microbiology, Peking University Health Science Center School of Basic Medical Sciences, Beijing 100191, China.
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