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Mizutani T, Ishizaka A. Poliovirus capsid protein VP3 can penetrate vascular endothelial cells. FEBS Lett 2024; 598:1909-1918. [PMID: 38955545 DOI: 10.1002/1873-3468.14974] [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: 05/06/2024] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 07/04/2024]
Abstract
The poliovirus (PV) enters the central nervous system (CNS) via the bloodstream, suggesting the existence of a mechanism to cross the blood-brain barrier. Here, we report that PV capsid proteins (VP1 and VP3) can penetrate cells, with VP3 being more invasive. Two independent parts of VP3 are responsible for this function. Both peptides can penetrate human umbilical cord vascular endothelial cells, and one peptide of VP3 could also penetrate peripheral blood mononuclear cells. In an in vitro blood-brain barrier model using rat-derived astrocytes, pericytes, and endothelial cells, both peptides were observed to traverse from the blood side to the brain side at 6 h after administration. These results provide insights into the molecular mechanisms underlying PV invasion into the CNS.
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Affiliation(s)
- Taketoshi Mizutani
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Aya Ishizaka
- Division of Infectious Diseases, Advanced Clinical Research Center, The Institute of Medical Science, The University of Tokyo, Japan
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2
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Ariza D, Castellar-Visbal L, Marquina M, Rivera-Porras D, Galbán N, Santeliz R, Gutiérrez-Rey M, Parra H, Vargas-Manotas J, Torres W, Quintana-Espinosa L, Manzano A, Cudris-Torres L, Bermúdez V. COVID-19: Unveiling the Neuropsychiatric Maze-From Acute to Long-Term Manifestations. Biomedicines 2024; 12:1147. [PMID: 38927354 PMCID: PMC11200893 DOI: 10.3390/biomedicines12061147] [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: 04/17/2024] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 06/28/2024] Open
Abstract
The SARS-CoV-2 virus has spread rapidly despite implementing strategies to reduce its transmission. The disease caused by this virus has been associated with a diverse range of symptoms, including common neurological manifestations such as dysgeusia, anosmia, and myalgias. Additionally, numerous cases of severe neurological complications associated with this disease have been reported, including encephalitis, stroke, seizures, and Guillain-Barré syndrome, among others. Given the high prevalence of neurological manifestations in this disease, the objective of this review is to analyze the mechanisms by which this virus can affect the nervous system, from its direct invasion to aberrant activation of the immune system and other mechanisms involved in the symptoms, including neuropsychiatric manifestations, to gain a better understanding of the disease and thus facilitate the search for effective therapeutic strategies.
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Affiliation(s)
- Daniela Ariza
- Endocrine and Metabolic Diseases Research Center, School of Medicine, Universidad del Zulia, Maracaibo 4002, Venezuela; (D.A.); (M.M.); (N.G.); (R.S.); (H.P.); (W.T.); (A.M.)
| | - Lily Castellar-Visbal
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla 080001, Colombia; (L.C.-V.); (M.G.-R.); (J.V.-M.); (L.Q.-E.)
| | - Maria Marquina
- Endocrine and Metabolic Diseases Research Center, School of Medicine, Universidad del Zulia, Maracaibo 4002, Venezuela; (D.A.); (M.M.); (N.G.); (R.S.); (H.P.); (W.T.); (A.M.)
| | - Diego Rivera-Porras
- Universidad Simón Bolívar, Facultad de Ciencias Jurídicas y Sociales, Centro de Investigación en Estudios Fronterizos, Cúcuta 540001, Colombia;
| | - Nestor Galbán
- Endocrine and Metabolic Diseases Research Center, School of Medicine, Universidad del Zulia, Maracaibo 4002, Venezuela; (D.A.); (M.M.); (N.G.); (R.S.); (H.P.); (W.T.); (A.M.)
| | - Raquel Santeliz
- Endocrine and Metabolic Diseases Research Center, School of Medicine, Universidad del Zulia, Maracaibo 4002, Venezuela; (D.A.); (M.M.); (N.G.); (R.S.); (H.P.); (W.T.); (A.M.)
| | - Melissa Gutiérrez-Rey
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla 080001, Colombia; (L.C.-V.); (M.G.-R.); (J.V.-M.); (L.Q.-E.)
| | - Heliana Parra
- Endocrine and Metabolic Diseases Research Center, School of Medicine, Universidad del Zulia, Maracaibo 4002, Venezuela; (D.A.); (M.M.); (N.G.); (R.S.); (H.P.); (W.T.); (A.M.)
| | - José Vargas-Manotas
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla 080001, Colombia; (L.C.-V.); (M.G.-R.); (J.V.-M.); (L.Q.-E.)
| | - Wheeler Torres
- Endocrine and Metabolic Diseases Research Center, School of Medicine, Universidad del Zulia, Maracaibo 4002, Venezuela; (D.A.); (M.M.); (N.G.); (R.S.); (H.P.); (W.T.); (A.M.)
| | - Laura Quintana-Espinosa
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla 080001, Colombia; (L.C.-V.); (M.G.-R.); (J.V.-M.); (L.Q.-E.)
| | - Alexander Manzano
- Endocrine and Metabolic Diseases Research Center, School of Medicine, Universidad del Zulia, Maracaibo 4002, Venezuela; (D.A.); (M.M.); (N.G.); (R.S.); (H.P.); (W.T.); (A.M.)
| | - Lorena Cudris-Torres
- Departamento de Ciencias Sociales, Universidad de la Costa, Barranquilla 080001, Colombia;
| | - Valmore Bermúdez
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla 080001, Colombia; (L.C.-V.); (M.G.-R.); (J.V.-M.); (L.Q.-E.)
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Centro de Investigaciones en Ciencias de la Vida, Barranquilla 080001, Colombia
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Uribe FR, González VPI, Kalergis AM, Soto JA, Bohmwald K. Understanding the Neurotrophic Virus Mechanisms and Their Potential Effect on Systemic Lupus Erythematosus Development. Brain Sci 2024; 14:59. [PMID: 38248274 PMCID: PMC10813552 DOI: 10.3390/brainsci14010059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/24/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024] Open
Abstract
Central nervous system (CNS) pathologies are a public health concern, with viral infections one of their principal causes. These viruses are known as neurotropic pathogens, characterized by their ability to infiltrate the CNS and thus interact with various cell populations, inducing several diseases. The immune response elicited by neurotropic viruses in the CNS is commanded mainly by microglia, which, together with other local cells, can secrete inflammatory cytokines to fight the infection. The most relevant neurotropic viruses are adenovirus (AdV), cytomegalovirus (CMV), enterovirus (EV), Epstein-Barr Virus (EBV), herpes simplex virus type 1 (HSV-1), and herpes simplex virus type 2 (HSV-2), lymphocytic choriomeningitis virus (LCMV), and the newly discovered SARS-CoV-2. Several studies have associated a viral infection with systemic lupus erythematosus (SLE) and neuropsychiatric lupus (NPSLE) manifestations. This article will review the knowledge about viral infections, CNS pathologies, and the immune response against them. Also, it allows us to understand the relevance of the different viral proteins in developing neuronal pathologies, SLE and NPSLE.
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Affiliation(s)
- Felipe R. Uribe
- Millennium Institute on Immunology and Immunotherapy, Laboratorio de Inmunología Traslacional, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago 8370146, Chile; (F.R.U.); (V.P.I.G.)
| | - Valentina P. I. González
- Millennium Institute on Immunology and Immunotherapy, Laboratorio de Inmunología Traslacional, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago 8370146, Chile; (F.R.U.); (V.P.I.G.)
| | - Alexis M. Kalergis
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8330025, Chile;
- Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Jorge A. Soto
- Millennium Institute on Immunology and Immunotherapy, Laboratorio de Inmunología Traslacional, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago 8370146, Chile; (F.R.U.); (V.P.I.G.)
| | - Karen Bohmwald
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma, Santiago 8910060, Chile
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Potokar M, Zorec R, Jorgačevski J. Astrocytes Are a Key Target for Neurotropic Viral Infection. Cells 2023; 12:2307. [PMID: 37759529 PMCID: PMC10528686 DOI: 10.3390/cells12182307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 08/28/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Astrocytes are increasingly recognized as important viral host cells in the central nervous system. These cells can produce relatively high quantities of new virions. In part, this can be attributed to the characteristics of astrocyte metabolism and its abundant and dynamic cytoskeleton network. Astrocytes are anatomically localized adjacent to interfaces between blood capillaries and brain parenchyma and between blood capillaries and brain ventricles. Moreover, astrocytes exhibit a larger membrane interface with the extracellular space than neurons. These properties, together with the expression of various and numerous viral entry receptors, a relatively high rate of endocytosis, and morphological plasticity of intracellular organelles, render astrocytes important target cells in neurotropic infections. In this review, we describe factors that mediate the high susceptibility of astrocytes to viral infection and replication, including the anatomic localization of astrocytes, morphology, expression of viral entry receptors, and various forms of autophagy.
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Affiliation(s)
- Maja Potokar
- Laboratory of Neuroendocrinology–Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia
- Celica Biomedical, Tehnološki Park 24, 1000 Ljubljana, Slovenia
| | - Robert Zorec
- Laboratory of Neuroendocrinology–Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia
- Celica Biomedical, Tehnološki Park 24, 1000 Ljubljana, Slovenia
| | - Jernej Jorgačevski
- Laboratory of Neuroendocrinology–Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia
- Celica Biomedical, Tehnološki Park 24, 1000 Ljubljana, Slovenia
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Mamana J, Humber GM, Espinal ER, Seo S, Vollmuth N, Sin J, Kim BJ. Coxsackievirus B3 infects and disrupts human induced-pluripotent stem cell derived brain-like endothelial cells. Front Cell Infect Microbiol 2023; 13:1171275. [PMID: 37139492 PMCID: PMC10149843 DOI: 10.3389/fcimb.2023.1171275] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/30/2023] [Indexed: 05/05/2023] Open
Abstract
Coxsackievirus B3 (CVB3) is a significant human pathogen that is commonly found worldwide. CVB3 among other enteroviruses, are the leading causes of aseptic meningo-encephalitis which can be fatal especially in young children. How the virus gains access to the brain is poorly-understood, and the host-virus interactions that occur at the blood-brain barrier (BBB) is even less-characterized. The BBB is a highly specialized biological barrier consisting primarily of brain endothelial cells which possess unique barrier properties and facilitate the passage of nutrients into the brain while restricting access to toxins and pathogens including viruses. To determine the effects of CVB3 infection on the BBB, we utilized a model of human induced-pluripotent stem cell-derived brain-like endothelial cells (iBECs) to ascertain if CVB3 infection may alter barrier cell function and overall survival. In this study, we determined that these iBECs indeed are susceptible to CVB3 infection and release high titers of extracellular virus. We also determined that infected iBECs maintain high transendothelial electrical resistance (TEER) during early infection despite possessing high viral load. TEER progressively declines at later stages of infection. Interestingly, despite the high viral burden and TEER disruptions at later timepoints, infected iBEC monolayers remain intact, indicating a low degree of late-stage virally-mediated cell death, which may contribute to prolonged viral shedding. We had previously reported that CVB3 infections rely on the activation of transient receptor vanilloid potential 1 (TRPV1) and found that inhibiting TRPV1 activity with SB-366791 significantly limited CVB3 infection of HeLa cervical cancer cells. Similarly in this study, we observed that treating iBECs with SB-366791 significantly reduced CVB3 infection, which suggests that not only can this drug potentially limit viral entry into the brain, but also demonstrates that this infection model could be a valuable platform for testing antiviral treatments of neurotropic viruses. In all, our findings elucidate the unique effects of CVB3 infection on the BBB and shed light on potential mechanisms by which the virus can initiate infections in the brain.
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Affiliation(s)
- Julia Mamana
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
| | - Gabrielle M. Humber
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
| | - Eric R. Espinal
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
| | - Soojung Seo
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
| | - Nadine Vollmuth
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
| | - Jon Sin
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
- *Correspondence: Jon Sin, ; Brandon J. Kim,
| | - Brandon J. Kim
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
- Department of Microbiology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Center for Convergent Biosciences and Medicine, University of Alabama, Tuscaloosa, AL, United States
- Alabama Life Research Institute, University of Alabama, Tuscaloosa, AL, United States
- *Correspondence: Jon Sin, ; Brandon J. Kim,
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Wang M, Huang P, Liu W, Tan W, Chen T, Zeng T, Zhu C, Shao J, Xue H, Li J, Yue M. Risk factors of severe fever with thrombocytopenia syndrome combined with central neurological complications: A five-year retrospective case-control study. Front Microbiol 2022; 13:1033946. [PMID: 36406394 PMCID: PMC9668900 DOI: 10.3389/fmicb.2022.1033946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/17/2022] [Indexed: 10/31/2023] Open
Abstract
OBJECTIVE Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease with high mortality rate, especially SFTS combined with central neurological complications. The purpose of this study was to explore risk factors of central neurological complications in SFTS patients. METHODS In this retrospective study, SFTS patients admitted to the First Affiliated Hospital of Nanjing Medical University between January 2017 and December 2021 were enrolled. Based on the presence or absence of central neurological complications, SFTS patients were divided into case group and control group. The patients' laboratory parameters and clinical data were collected for statistical analysis. Receiver operating characteristic (ROC) curve analysis was used to evaluate the prediction accuracy of independent risk factors in identifying SFTS patients with central neurological complications. RESULTS In total, 198 hospitalized SFTS patients with complete medical records, clear etiological diagnosis and clinical outcomes were enrolled in this study. Of these, 74 (37.4%) cases were diagnosed with SFTS with central neurological complications, 29 (39.2%) cases died, and no death occurred in the control group. Multivariate logistic regression analysis revealed pulmonary rales, atrial fibrillation, and high serum SFTSV RNA, lactate dehydrogenase level during the fever stage as independent risk factors for the development of central neurological complications in SFTS patients. ROC curve analysis showed that the area under the ROC curve (AUC) of serum SFTSV RNA and lactate dehydrogenase levels were 0.748 (95%CI: 0.673-0.823, p < 0.001) and 0.864 (95%CI: 0.815-0.914, p < 0.001), respectively, in central neurological complications predicted in SFTS patients. CONCLUSION Severe fever with thrombocytopenia syndrome (SFTS) combined with central neurological complications has high morbidity and mortality and diverse clinical manifestations. Early monitoring of lung signs, electrocardiogram, blood SFTSV RNA, and lactate dehydrogenase levels in SFTS patients may be useful in predicting the occurrence of central neurological complications.
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Affiliation(s)
- Min Wang
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Peng Huang
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Wei Liu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- State Key Lab Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Weilong Tan
- Department of Infectious Disease Prevention and Control, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Tianyan Chen
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tian Zeng
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chuanlong Zhu
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Department Infectious and Tropical Diseases, The Second Affiliation Hospital of Hainan Medical University, Haikou, China
| | - Jianguo Shao
- Department of Gastroenterology, Nantong Third People’s Hospital Affiliated to Nantong University, Nantong, China
| | - Hong Xue
- Department of Hepatology, Nantong Third People’s Hospital Affiliated to Nantong University, Nantong, China
| | - Jun Li
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ming Yue
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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Xiao Z, He F, Feng M, Liu Z, Liu Z, Li S, Wang W, Yao H, Wu J. Engineered coxsackievirus B3 containing multiple organ-specific miRNA targets showed attenuated viral tropism and protective immunity. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2022; 103:105316. [PMID: 35718333 DOI: 10.1016/j.meegid.2022.105316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 05/07/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Coxsackievirus B3 (CVB3) can cause viral myocarditis, pancreatitis, and aseptic meningitis. This study aimed to construct an engineered CVB3 harboring three different tissue-specific miRNA targets (CVB3-miR3*T) to decrease the virulence of CVB3 in muscles, pancreas, and brain. CVB3-miR3*T and CVB3-miR-CON (containing three sequences not found in the human genome) were engineered and replicated in HELA cells. A viral plaque assay was used to determine the titers in HELA cells and TE671 cells (high miRNA-206 expression), MIN-6 cells (high miRNA-29a-3p expression), and mouse astrocytes (high miRNA-124-3p expression). We found that engineered CVB3 showed attenuated replication and reduced cytotoxicity, the variability of each type of cell was also increased in the CVB3-miR3*T group. Male BALB/c mice were infected to determine the LD50 and examine heart, pancreas, and brain titers and injury. Viral replication of the engineered viruses was restricted in infected mouse heart, pancreas, and brain, and viral plaques were about 100 fold lower compared with the control group. Mice immunized using CVB3-miR3*T, UV-inactivated CVB3-WT, and CVB3-miR-CON were infected with 100 × LD50 of CVB3-WT to determine neutralization. CVB3-miRT*3-preimmunized mice exhibited complete protection and remained alive after lethal virus infection, while only 5/15 were alive in the UV-inactivated mice, and all 15 mice were dead in the PBS-immunized group. The results demonstrate that miR-206-, miRNA-29a-3p-, and miRNA-124-3p-mediated CVB3 detargeting from the pancreas, heart, and brain might be a highly effective strategy for viral vaccine development.
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Affiliation(s)
- Zonghui Xiao
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Feng He
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Miao Feng
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Zhuo Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Zhewei Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Sen Li
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Wei Wang
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Hailan Yao
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China.
| | - Jianxin Wu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China; Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China; Beijing Tongren Hospital, Capital Medical University, Beijing, China.
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Eberle RJ, Olivier DS, Amaral MS, Pacca CC, Nogueira ML, Arni RK, Willbold D, Coronado MA. Riboflavin, a Potent Neuroprotective Vitamin: Focus on Flavivirus and Alphavirus Proteases. Microorganisms 2022; 10:1331. [PMID: 35889050 PMCID: PMC9315535 DOI: 10.3390/microorganisms10071331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/24/2022] [Accepted: 06/29/2022] [Indexed: 12/01/2022] Open
Abstract
Several neurotropic viruses are members of the flavivirus and alphavirus families. Infections caused by these viruses may cause long-term neurological sequelae in humans. The continuous emergence of infections caused by viruses around the world, such as the chikungunya virus (CHIKV) (Alphavirus genus), the zika virus (ZIKV) and the yellow fever virus (YFV) (both of the Flavivirus genus), warrants the development of new strategies to combat them. Our study demonstrates the inhibitory potential of the water-soluble vitamin riboflavin against NS2B/NS3pro of ZIKV and YFV and nsP2pro of CHIKV. Riboflavin presents a competitive inhibition mode with IC50 values in the medium µM range of 79.4 ± 5.0 µM for ZIKV NS2B/NS3pro and 45.7 ± 2.9 μM for YFV NS2B/NS3pro. Against CHIKV nsP2pro, the vitamin showed a very strong effect (93 ± 5.7 nM). The determined dissociation constants (KD) are significantly below the threshold value of 30 µM. The ligand binding increases the thermal stability between 4 °C and 8 °C. Unexpectedly, riboflavin showed inhibiting activity against another viral protein; the molecule was also able to inhibit the viral entry of CHIKV. Molecular dynamics simulations indicated great stability of riboflavin in the protease active site, which validates the repurposing of riboflavin as a promising molecule in drug development against the viruses presented here.
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Affiliation(s)
- Raphael J. Eberle
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany;
- Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße, 40225 Düsseldorf, Germany
| | - Danilo S. Olivier
- Center of Integrated Sciences, Campus Cimba, Federal University of Tocantins, Araguaína 77824-838, TO, Brazil;
| | - Marcos S. Amaral
- Institute of Physics, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, MS, Brazil;
| | - Carolina C. Pacca
- Instituto Superior de Educação Ceres, FACERES Medical School, São José do Rio Preto 15090-305, SP, Brazil;
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto-FAMERP, São José do Rio Preto 15090-000, SP, Brazil;
| | - Mauricio L. Nogueira
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto-FAMERP, São José do Rio Preto 15090-000, SP, Brazil;
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Raghuvir K. Arni
- Multiuser Center for Biomolecular Innovation, Department of Physics, IBILCE, São Paulo State University, São Jose do Rio Preto 15054-000, SP, Brazil;
| | - Dieter Willbold
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany;
- Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße, 40225 Düsseldorf, Germany
- JuStruct: Jülich Centre for Structural Biology, Forchungszentrum Jülich, 52428 Jülich, Germany
| | - Monika A. Coronado
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany;
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Yang F, Zhang N, Chen Y, Yin J, Xu M, Cheng X, Ma R, Meng J, Du Y. Role of Non-Coding RNA in Neurological Complications Associated With Enterovirus 71. Front Cell Infect Microbiol 2022; 12:873304. [PMID: 35548469 PMCID: PMC9081983 DOI: 10.3389/fcimb.2022.873304] [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: 02/10/2022] [Accepted: 03/30/2022] [Indexed: 11/13/2022] Open
Abstract
Enterovirus 71 (EV71) is the main pathogenic virus that causes hand, foot, and mouth disease (HFMD). Studies have reported that EV71-induced infections including aseptic meningitis, acute flaccid paralysis, and even neurogenic pulmonary edema, can progress to severe neurological complications in infants, young children, and the immunosuppressed population. However, the mechanisms through which EV71 causes neurological diseases have not been fully explored. Non-coding RNAs (ncRNAs), are RNAs that do not code for proteins, play a key role in biological processes and disease development associated with EV71. In this review, we summarized recent advances concerning the impacts of ncRNAs on neurological diseases caused by interaction between EV71 and host, revealing the potential role of ncRNAs in pathogenesis, diagnosis and treatment of EV71-induced neurological complications.
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Affiliation(s)
- Feixiang Yang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Urology, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
| | - Ning Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- First School of Clinical Medicine, Anhui Medical University, Hefei, China
| | - Yuxin Chen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- School of Public Health, Anhui Medical University, Hefei, China
| | - Jiancai Yin
- First School of Clinical Medicine, Anhui Medical University, Hefei, China
| | - Muchen Xu
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- School of Public Health, Anhui Medical University, Hefei, China
| | - Xiang Cheng
- First School of Clinical Medicine, Anhui Medical University, Hefei, China
| | - Ruyi Ma
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Jialin Meng
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Urology, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
- *Correspondence: Yinan Du, ; Jialin Meng,
| | - Yinan Du
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- *Correspondence: Yinan Du, ; Jialin Meng,
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10
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Constant O, Maarifi G, Blanchet FP, Van de Perre P, Simonin Y, Salinas S. Role of Dendritic Cells in Viral Brain Infections. Front Immunol 2022; 13:862053. [PMID: 35529884 PMCID: PMC9072653 DOI: 10.3389/fimmu.2022.862053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/22/2022] [Indexed: 11/13/2022] Open
Abstract
To gain access to the brain, a so-called immune-privileged organ due to its physical separation from the blood stream, pathogens and particularly viruses have been selected throughout evolution for their use of specific mechanisms. They can enter the central nervous system through direct infection of nerves or cerebral barriers or through cell-mediated transport. Indeed, peripheral lymphoid and myeloid immune cells can interact with the blood-brain and the blood-cerebrospinal fluid barriers and allow viral brain access using the "Trojan horse" mechanism. Among immune cells, at the frontier between innate and adaptive immune responses, dendritic cells (DCs) can be pathogen carriers, regulate or exacerbate antiviral responses and neuroinflammation, and therefore be involved in viral transmission and spread. In this review, we highlight an important contribution of DCs in the development and the consequences of viral brain infections.
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Affiliation(s)
- Orianne Constant
- Pathogenesis and Control of Chronic and Emerging Infections, Institut national de la santé et de la recherche médicale (INSERM), University of Montpellier, Etablissement Français du Sang, Montpellier, France
| | - Ghizlane Maarifi
- Institut de Recherche en Infectiologie de Montpellier, Centre national de la recherche scientifique (CNRS), Université de Montpellier, Montpellier, France
| | - Fabien P. Blanchet
- Institut de Recherche en Infectiologie de Montpellier, Centre national de la recherche scientifique (CNRS), Université de Montpellier, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic and Emerging Infections, Institut national de la santé et de la recherche médicale (INSERM), University of Montpellier, Etablissement Français du Sang, Montpellier, France
| | - Yannick Simonin
- Pathogenesis and Control of Chronic and Emerging Infections, Institut national de la santé et de la recherche médicale (INSERM), University of Montpellier, Etablissement Français du Sang, Montpellier, France
| | - Sara Salinas
- Pathogenesis and Control of Chronic and Emerging Infections, Institut national de la santé et de la recherche médicale (INSERM), University of Montpellier, Etablissement Français du Sang, Montpellier, France
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11
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A severe case of human rhinovirus A45 with central nervous system involvement and viral sepsis. Virol J 2022; 19:72. [PMID: 35459180 PMCID: PMC9034649 DOI: 10.1186/s12985-022-01799-x] [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: 01/10/2022] [Accepted: 04/08/2022] [Indexed: 11/23/2022] Open
Abstract
Background Rhinovirus is a common viral aetiology of upper respiratory infection and is mostly associated with common cold or flu-like illness. Although rhinovirus has been recognized as a pathogen for lower respiratory infections in severe cases credited to advances in molecular detection, central nervous system involvement and multiorgan dysfunction are extremely rare. Case presentation A previously healthy 10-year-old girl developed fever, sore throat and conjunctive injection after contact with an upper respiratory infection patient, followed by seizures, haematuria, and severe diarrhoea. She experienced viral sepsis and multiorgan dysfunction after admission. Cerebral computed tomography showed significant diffuse encephaledema. Cerebrospinal fluid analysis showed significantly elevated protein levels. After her consciousness disturbance improved, she still took a long time to recover from haematuria and diarrhoea. We identified a rarely reported rhinovirus A45 in her oropharyngeal and anal swabs by metagenomic next-generation sequencing, and bacterial culture of blood specimens yielded negative results. Conclusions This case presents a patient with severe rhinovirus infection, which was very likely responsible for her central nervous system symptoms and viral sepsis.
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12
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Encephalitis in Thailand: A Neglected Disease Increasingly Caused by Enterovirus. Trop Med Infect Dis 2021; 6:tropicalmed6030117. [PMID: 34209032 PMCID: PMC8293361 DOI: 10.3390/tropicalmed6030117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/17/2022] Open
Abstract
From 2013 to 2018, the Thai Red Cross Emerging Infectious Disease–Health Science Center (TRC-EID-HS), in collaboration with the Department of Disease Control (DDC) and the Ministry of Public Health (MOPH) Thailand, conducted encephalitis surveillance. A total of 1700 cerebrospinal fluid (CSF) samples from patients with encephalitis were tested by a predesigned multiplex PCR. Diagnosis was made in 318 cases (18.7%), 86 (27%) of which were caused by Epstein–Barr virus (EBV), 55 (17.3%) by enteroviruses (EV), 36 (11.3%) by varicella–zoster virus (VZV), 31 (9.7%) by cytomegalovirus (CMV), 25 (7.8%) by herpes simplex virus type 1 (HSV-1), and 20 (6.3%) by human herpesvirus 6 (HHV-6). Results were compared with 3099 CSF samples from patients with encephalitis collected between 2002 to 2012, which were tested by specific PCR assays. Diagnosis was made in 337 (10.9%) of these cases, and 91 (27%) were CMV, 79 (23.4%) were VZV, 72 (21.4%) were EBV, 39 (11.6%) were EVs, 39 (11.6%) were HSV-1, 33 (9.8%) were HSV-2, and 2 (0.6%) were Dengue virus (DENV). The change in the pattern toward EVs as a major cause of viral encephalitis was unexpected, and a change in viral neurotropism may be responsible.
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13
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Mussa BM, Srivastava A, Verberne AJM. COVID-19 and Neurological Impairment: Hypothalamic Circuits and Beyond. Viruses 2021; 13:v13030498. [PMID: 33802995 PMCID: PMC8002703 DOI: 10.3390/v13030498] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/15/2021] [Accepted: 02/26/2021] [Indexed: 12/23/2022] Open
Abstract
In December 2019, a novel coronavirus known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan, the capital of Hubei, China. The virus infection, coronavirus disease 2019 (COVID-19), represents a global concern, as almost all countries around the world are affected. Clinical reports have confirmed several neurological manifestations in COVID-19 patients such as headaches, vomiting, and nausea, indicating the involvement of the central nervous system (CNS) and peripheral nervous system (PNS). Neuroinvasion of coronaviruses is not a new phenomenon, as it has been demonstrated by previous autopsies of severe acute respiratory syndrome coronavirus (SARS-CoV) patients who experienced similar neurologic symptoms. The hypothalamus is a complex structure that is composed of many nuclei and diverse neuronal cell groups. It is characterized by intricate intrahypothalamic circuits that orchestrate a finely tuned communication within the CNS and with the PNS. Hypothalamic circuits are critical for maintaining homeostatic challenges including immune responses to viral infections. The present article reviews the possible routes and mechanisms of neuroinvasion of SARS-CoV-2, with a specific focus on the role of the hypothalamic circuits in mediating the neurological symptoms noted during COVID-19 infection.
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Affiliation(s)
- Bashair M. Mussa
- Basic Medical Science Department, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
- Correspondence: ; Tel.: +971-65057220
| | - Ankita Srivastava
- Sharjah Institute for Medical Research and College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Anthony J. M. Verberne
- Department of Medicine, Austin Health, University of Melbourne, Heidelberg 3084, Australia;
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14
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Alirezaei M, Flynn CT, Garcia SD, Kimura T, Whitton JL. A food-responsive switch modulates TFEB and autophagy, and determines susceptibility to coxsackievirus infection and pancreatitis. Autophagy 2021; 17:402-419. [PMID: 32019403 PMCID: PMC8007148 DOI: 10.1080/15548627.2020.1720425] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 01/10/2020] [Accepted: 01/20/2020] [Indexed: 10/25/2022] Open
Abstract
Almost a billion people worldwide are chronically undernourished. Herein, using a mouse model of coxsackievirus B3 (CVB3) infection, we report that a single day of food restriction (FR) markedly increases susceptibility to attenuated enterovirus infection, replication, and disease. These "pro-viral" effects, which are rapidly-reversed by the restoration of food, are mediated by several genes whose expression is altered by FR, and which support CVB3 replication. Central to this is TFEB, a protein whose expression and activation status are rapidly increased by FR. TFEB, which regulates the transcription of >100 genes involved in macroautophagy/autophagy and lysosomal biogenesis, responds similarly to both FR and CVB3 infection and plays a pivotal role in determining host susceptibility to CVB3. We propose that, by upregulating TFEB, FR generates an intracellular environment that is more hospitable to the incoming virus, facilitating its replication. This interplay between nutritional status and enterovirus replication has implications for human health and, perhaps, for the evolution of these viruses.Abbreviations: Atg/ATG: autophagy-related; CAR: Coxsackievirus and adenovirus receptor; Cas9: CRISPR associated protein 9; Cre: recombinase that causes recombination; CRISPR: clustered regularly interspaced short palindromic repeats; Ctsb/CTSB: cathepsin B; CVB3: coxsackievirus B3; DsRedCVB3: a recombinant CVB3 that encodes the Discosoma red fluorescent protein; EL: elastase; FR: food restriction; GFP: green fluorescent protein; gRNA: guide RNA; HBSS: Hanks Buffered Salt Solution; LYNUS: lysosomal nutrient sensing machinery; MAP1LC3/LC3: microtubule-associated protein 1 light chain 3; MFI: mean fluorescence intensity; MOI: multiplicity of infection; MTOR: mechanistic target of rapamycin kinase; Nluc: nanoluciferase; NlucCVB3: a recombinant CVB3 encoding nanoluciferase; pfu: plaque-forming unit(s); p.i.: post infection; rCVB: recombinant coxsackievirus B3; RPS6KB/p70S6K: ribosomal protein S6 kinase; RT: room temperature; siRNA: small interfering RNA; TFEB: transcription factor EB; tg: transgenic; TUBB: β-tubulin; UNINF: uninfected; wrt: with respect to; WT: wild type.
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Affiliation(s)
- Mehrdad Alirezaei
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Claudia T. Flynn
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Selma D. Garcia
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Taishi Kimura
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - J. Lindsay Whitton
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
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15
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Kohil A, Jemmieh S, Smatti MK, Yassine HM. Viral meningitis: an overview. Arch Virol 2021; 166:335-345. [PMID: 33392820 PMCID: PMC7779091 DOI: 10.1007/s00705-020-04891-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/04/2020] [Indexed: 12/14/2022]
Abstract
Meningitis is a serious condition that affects the central nervous system. It is an inflammation of the meninges, which is the membrane that surrounds both the brain and the spinal cord. Meningitis can be caused by bacterial, viral, or fungal infections. Many viruses, such as enteroviruses, herpesviruses, and influenza viruses, can cause this neurological disorder. However, enteroviruses have been found to be the underlying cause of most viral meningitis cases worldwide. With few exceptions, the clinical manifestations and symptoms associated with viral meningitis are similar for the different causative agents, which makes it difficult to diagnose the disease at early stages. The pathogenesis of viral meningitis is not clearly defined, and more studies are needed to improve the health care of patients in terms of early diagnosis and management. This review article discusses the most common causative agents, epidemiology, clinical features, diagnosis, and pathogenesis of viral meningitis.
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Affiliation(s)
- Amira Kohil
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Sara Jemmieh
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Maria K Smatti
- Biomedical Research Center, Qatar University, Doha, Qatar
| | - Hadi M Yassine
- Biomedical Research Center, Qatar University, Doha, Qatar.
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16
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Solár P, Zamani A, Kubíčková L, Dubový P, Joukal M. Choroid plexus and the blood-cerebrospinal fluid barrier in disease. Fluids Barriers CNS 2020; 17:35. [PMID: 32375819 PMCID: PMC7201396 DOI: 10.1186/s12987-020-00196-2] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 04/22/2020] [Indexed: 01/08/2023] Open
Abstract
The choroid plexus (CP) forming the blood-cerebrospinal fluid (B-CSF) barrier is among the least studied structures of the central nervous system (CNS) despite its clinical importance. The CP is an epithelio-endothelial convolute comprising a highly vascularized stroma with fenestrated capillaries and a continuous lining of epithelial cells joined by apical tight junctions (TJs) that are crucial in forming the B-CSF barrier. Integrity of the CP is critical for maintaining brain homeostasis and B-CSF barrier permeability. Recent experimental and clinical research has uncovered the significance of the CP in the pathophysiology of various diseases affecting the CNS. The CP is involved in penetration of various pathogens into the CNS, as well as the development of neurodegenerative (e.g., Alzheimer´s disease) and autoimmune diseases (e.g., multiple sclerosis). Moreover, the CP was shown to be important for restoring brain homeostasis following stroke and trauma. In addition, new diagnostic methods and treatment of CP papilloma and carcinoma have recently been developed. This review describes and summarizes the current state of knowledge with regard to the roles of the CP and B-CSF barrier in the pathophysiology of various types of CNS diseases and sets up the foundation for further avenues of research.
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Affiliation(s)
- Peter Solár
- Department of Anatomy, Cellular and Molecular Neurobiology Research Group, Faculty of Medicine, Masaryk University, CZ-625 00, Brno, Czech Republic
- Department of Neurosurgery, Faculty of Medicine, Masaryk University and St. Anne´s University Hospital Brno, Pekařská 53, CZ-656 91, Brno, Czech Republic
| | - Alemeh Zamani
- Department of Anatomy, Cellular and Molecular Neurobiology Research Group, Faculty of Medicine, Masaryk University, CZ-625 00, Brno, Czech Republic
| | - Lucie Kubíčková
- Department of Anatomy, Cellular and Molecular Neurobiology Research Group, Faculty of Medicine, Masaryk University, CZ-625 00, Brno, Czech Republic
| | - Petr Dubový
- Department of Anatomy, Cellular and Molecular Neurobiology Research Group, Faculty of Medicine, Masaryk University, CZ-625 00, Brno, Czech Republic
| | - Marek Joukal
- Department of Anatomy, Cellular and Molecular Neurobiology Research Group, Faculty of Medicine, Masaryk University, CZ-625 00, Brno, Czech Republic.
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17
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Majer A, McGreevy A, Booth TF. Molecular Pathogenicity of Enteroviruses Causing Neurological Disease. Front Microbiol 2020; 11:540. [PMID: 32328043 PMCID: PMC7161091 DOI: 10.3389/fmicb.2020.00540] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/12/2020] [Indexed: 12/12/2022] Open
Abstract
Enteroviruses are single-stranded positive-sense RNA viruses that primarily cause self-limiting gastrointestinal or respiratory illness. In some cases, these viruses can invade the central nervous system, causing life-threatening neurological diseases including encephalitis, meningitis and acute flaccid paralysis (AFP). As we near the global eradication of poliovirus, formerly the major cause of AFP, the number of AFP cases have not diminished implying a non-poliovirus etiology. As the number of enteroviruses linked with neurological disease is expanding, of which many had previously little clinical significance, these viruses are becoming increasingly important to public health. Our current understanding of these non-polio enteroviruses is limited, especially with regards to their neurovirulence. Elucidating the molecular pathogenesis of these viruses is paramount for the development of effective therapeutic strategies. This review summarizes the clinical diseases associated with neurotropic enteroviruses and discusses recent advances in the understanding of viral invasion of the central nervous system, cell tropism and molecular pathogenesis as it correlates with host responses.
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Affiliation(s)
- Anna Majer
- Viral Diseases Division, National Microbiology Laboratory, Winnipeg, MB, Canada
| | - Alan McGreevy
- Viral Diseases Division, National Microbiology Laboratory, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada.,Department of Biology, University of Winnipeg, Winnipeg, MB, Canada
| | - Timothy F Booth
- Viral Diseases Division, National Microbiology Laboratory, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada
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18
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Chen BS, Lee HC, Lee KM, Gong YN, Shih SR. Enterovirus and Encephalitis. Front Microbiol 2020; 11:261. [PMID: 32153545 PMCID: PMC7044131 DOI: 10.3389/fmicb.2020.00261] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 02/04/2020] [Indexed: 12/24/2022] Open
Abstract
Enterovirus-induced infection of the central nervous system (CNS) results in acute inflammation of the brain (encephalitis) and constitutes a significant global burden to human health. These viruses are thought to be highly cytolytic, therefore normal brain function could be greatly compromised following enteroviral infection of the CNS. A further layer of complexity is added by evidence showing that some enteroviruses may establish a persistent infection within the CNS and eventually lead to pathogenesis of certain neurodegenerative disorders. Interestingly, enterovirus encephalitis is particularly common among young children, suggesting a potential causal link between the development of the neuroimmune system and enteroviral neuroinvasion. Although the CNS involvement in enterovirus infections is a relatively rare complication, it represents a serious underlying cause of mortality. Here we review a selection of enteroviruses that infect the CNS and discuss recent advances in the characterization of these enteroviruses with regard to their routes of CNS infection, tropism, virulence, and immune responses.
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Affiliation(s)
- Bo-Shiun Chen
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Hou-Chen Lee
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Kuo-Ming Lee
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Nong Gong
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Shin-Ru Shih
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan.,Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan.,Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
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19
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Wiatr M, Stump-Guthier C, Latorre D, Uhlig S, Weiss C, Ilonen J, Engelhardt B, Ishikawa H, Schwerk C, Schroten H, Tenenbaum T, Rudolph H. Distinct migratory pattern of naive and effector T cells through the blood-CSF barrier following Echovirus 30 infection. J Neuroinflammation 2019; 16:232. [PMID: 31752904 PMCID: PMC6868812 DOI: 10.1186/s12974-019-1626-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/28/2019] [Indexed: 01/04/2023] Open
Abstract
Background Echovirus 30 (E-30) is one of the most frequently isolated pathogens in aseptic meningitis worldwide. To gain access to the central nervous system (CNS), E-30 and immune cells have to cross one of the two main barriers of the CNS, the epithelial blood–cerebrospinal fluid barrier (BCSFB) or the endothelial blood–brain barrier (BBB). In an in vitro model of the BCSFB, it has been shown that E-30 can infect human immortalized brain choroid plexus papilloma (HIBCPP) cells. Methods In this study we investigated the migration of different T cell subpopulations, naive and effector T cells, through HIBCPP cells during E-30 infection. Effects of E-30 infection and the migration process were evaluated via immunofluorescence and flow cytometry analysis, as well as transepithelial resistance and dextran flux measurement. Results Th1 effector cells and enterovirus-specific effector T cells migrated through HIBCPP cells more efficiently than naive CD4+ T cells following E-30 infection of HIBCPP cells. Among the different naive T cell populations, CD8+ T cells crossed the E-30-infected HIBCPP cell layer in a significantly higher number than CD4+ T cells. A large amount of effector T cells also remained attached to the basolateral side of the HIBCPP cells compared with naive T cells. Analysis of HIBCPP barrier function showed significant alteration after E-30 infection and trans- as well as paracellular migration of T cells independent of the respective subpopulation. Morphologic analysis of migrating T cells revealed that a polarized phenotype was induced by the chemokine CXCL12, but reversed to a round phenotype after E-30 infection. Further characterization of migrating Th1 effector cells revealed a downregulation of surface adhesion proteins such as LFA-1 PSGL-1, CD44, and CD49d. Conclusion Taken together these results suggest that naive CD8+ and Th1 effector cells are highly efficient to migrate through the BCSFB in an inflammatory environment. The T cell phenotype is modified during the migration process through HIBCPP cells.
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Affiliation(s)
- Marie Wiatr
- Pediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Carolin Stump-Guthier
- Pediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Daniela Latorre
- Institute for Research in Biomedicine, Università della Svizzera italiana, 6500, Bellinzona, Switzerland.,Institute of Microbiology, ETH Zurich, 8093, Zurich, Switzerland
| | - Stefanie Uhlig
- Flowcore Mannheim, Ludolf-Krehl-Strasse 13 - 17, 68167, Mannheim, Germany
| | - Christel Weiss
- Institute of Medical Statistics and Biomathematics, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Jorma Ilonen
- Immunogenetics Laboratory, Institute of Biomedicine, and Clinical Microbiology, Turku University Hospital, University of Turku, Turku, Finland
| | | | - Hiroshi Ishikawa
- Department of NDU Life Sciences, School of Life Dentistry, Nippon Dental University, Tokyo, Japan
| | - Christian Schwerk
- Pediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Horst Schroten
- Pediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Tobias Tenenbaum
- Pediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
| | - Henriette Rudolph
- Pediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
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20
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Lim ZQ, Ng QY, Ng JWQ, Mahendran V, Alonso S. Recent progress and challenges in drug development to fight hand, foot and mouth disease. Expert Opin Drug Discov 2019; 15:359-371. [DOI: 10.1080/17460441.2019.1659241] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ze Qin Lim
- Department of Microbiology&Immunology, Yong Loo Lin School of Medicine, Immunology program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Qing Yong Ng
- Department of Microbiology&Immunology, Yong Loo Lin School of Medicine, Immunology program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Justin Wei Qing Ng
- Department of Microbiology&Immunology, Yong Loo Lin School of Medicine, Immunology program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Vikneswari Mahendran
- Department of Microbiology&Immunology, Yong Loo Lin School of Medicine, Immunology program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Sylvie Alonso
- Department of Microbiology&Immunology, Yong Loo Lin School of Medicine, Immunology program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
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21
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Delery EC, MacLean AG. Culture Model for Non-human Primate Choroid Plexus. Front Cell Neurosci 2019; 13:396. [PMID: 31555096 PMCID: PMC6724611 DOI: 10.3389/fncel.2019.00396] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 08/15/2019] [Indexed: 11/13/2022] Open
Abstract
While there are murine and rat choroid plexus epithelial cell cultures, a translationally relevant model for choroid plexus activation and function is still lacking. The rhesus macaque is the gold standard for modeling viral infection and activation of CNS, including HIV-associated neurocognitive disorders. We have developed a rhesus macaque choroid plexus epithelial cell culture model which we believe to be suitable for studies of inflammation associated with viral infection of the CNS. Epithelial morphology and function were assessed using vimentin, phalloidin, the tight junction protein zonula-occludens-1 (ZO-1), and focal adhesion kinase (FAK). Choroid plexus epithelial cell type was confirmed using immunofluorescence with two proteins highly expressed in the choroid plexus: transthyretin and α-klotho. Finally, barrier properties of the model were monitored using pro- and anti-inflammatory mediators (TNF-α, the TLR2 agonist PamCys3K, and dexamethasone). When pro-inflammatory TNF-α was added to the xCelligence wells, there was a decrease in barrier function, which decreased in a step-wise fashion with each additional administration. This barrier function was repaired upon addition of the steroid dexamethasone. The TLR2 agonist PAM3CysK increased barrier functions in TNF-α treated wells. We have presented a model of the blood-CSF barrier that will allow study into pro- and anti-inflammatory conditions in the brain, while simultaneously measuring real time changes to epithelial cells.
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Affiliation(s)
- Elizabeth C Delery
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, United States.,Tulane Program in Biomedical Sciences, New Orleans, LA, United States.,Department of Microbiology and Immunology, Tulane Medical School, New Orleans, LA, United States
| | - Andrew G MacLean
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, United States.,Tulane Program in Biomedical Sciences, New Orleans, LA, United States.,Department of Microbiology and Immunology, Tulane Medical School, New Orleans, LA, United States.,Tulane Brain Institute, New Orleans, LA, United States.,Tulane Center for Aging, New Orleans, LA, United States
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22
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Monette A, Mouland AJ. T Lymphocytes as Measurable Targets of Protection and Vaccination Against Viral Disorders. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2019; 342:175-263. [PMID: 30635091 PMCID: PMC7104940 DOI: 10.1016/bs.ircmb.2018.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Continuous epidemiological surveillance of existing and emerging viruses and their associated disorders is gaining importance in light of their abilities to cause unpredictable outbreaks as a result of increased travel and vaccination choices by steadily growing and aging populations. Close surveillance of outbreaks and herd immunity are also at the forefront, even in industrialized countries, where previously eradicated viruses are now at risk of re-emergence due to instances of strain recombination, contractions in viral vector geographies, and from their potential use as agents of bioterrorism. There is a great need for the rational design of current and future vaccines targeting viruses, with a strong focus on vaccine targeting of adaptive immune effector memory T cells as the gold standard of immunity conferring long-lived protection against a wide variety of pathogens and malignancies. Here, we review viruses that have historically caused large outbreaks and severe lethal disorders, including respiratory, gastric, skin, hepatic, neurologic, and hemorrhagic fevers. To observe trends in vaccinology against these viral disorders, we describe viral genetic, replication, transmission, and tropism, host-immune evasion strategies, and the epidemiology and health risks of their associated syndromes. We focus on immunity generated against both natural infection and vaccination, where a steady shift in conferred vaccination immunogenicity is observed from quantifying activated and proliferating, long-lived effector memory T cell subsets, as the prominent biomarkers of long-term immunity against viruses and their associated disorders causing high morbidity and mortality rates.
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23
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Mangale V, McIntyre LL, Walsh CM, Loring JF, Lane TE. Promoting remyelination through cell transplantation therapies in a model of viral-induced neurodegenerative disease. Dev Dyn 2018; 248:43-52. [PMID: 30067309 DOI: 10.1002/dvdy.24658] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/05/2018] [Accepted: 07/05/2018] [Indexed: 12/17/2022] Open
Abstract
Multiple sclerosis (MS) is a central nervous system (CNS) disease characterized by chronic neuroinflammation, demyelination, and axonal damage. Infiltration of activated lymphocytes and myeloid cells are thought to be primarily responsible for white matter damage and axonopathy. Several United States Food and Drug Administration-approved therapies exist that impede activated lymphocytes from entering the CNS thereby limiting new lesion formation in patients with relapse-remitting forms of MS. However, a significant challenge within the field of MS research is to develop effective and sustained therapies that allow for axonal protection and remyelination. In recent years, there has been increasing evidence that some kinds of stem cells and their derivatives seem to be able to mute neuroinflammation as well as promote remyelination and axonal integrity. Intracranial infection of mice with the neurotropic JHM strain of mouse hepatitis virus (JHMV) results in immune-mediated demyelination and axonopathy, making this an excellent model to interrogate the therapeutic potential of stem cell derivatives in evoking remyelination. This review provides a succinct overview of our recent findings using intraspinal injection of mouse CNS neural progenitor cells and human neural precursors into JHMV-infected mice. JHMV-infected mice receiving these cells display extensive remyelination associated with axonal sparing. In addition, we discuss possible mechanisms associated with sustained clinical recovery. Developmental Dynamics 248:43-52, 2019. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Vrushali Mangale
- Division of Microbiology & Immunology, Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah
| | - Laura L McIntyre
- Department of Molecular Biology & Biochemistry, Sue & Bill Gross Stem Cell Center, University of California, Irvine, California
| | - Craig M Walsh
- Department of Molecular Biology & Biochemistry, Sue & Bill Gross Stem Cell Center, University of California, Irvine, California
| | - Jeanne F Loring
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California
| | - Thomas E Lane
- Division of Microbiology & Immunology, Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah.,Department of Bioengineering, University of Utah, Salt Lake City, Utah.,Immunology, Inflammation, and Infectious Disease Initiative, University of Utah, Salt Lake City, Utah
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24
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Hung TH, Chen VCH, Yang YH, Tsai CS, Lu ML, McIntyre RS, Lee Y, Huang KY. Association between enterovirus infection and speech and language impairments: A nationwide population-based study. RESEARCH IN DEVELOPMENTAL DISABILITIES 2018; 77:76-86. [PMID: 29705533 DOI: 10.1016/j.ridd.2018.04.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 04/16/2018] [Accepted: 04/19/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND AND AIMS Delay and impairment in Speech and language are common developmental problems in younger populations. Hitherto, there has been minimal study of the association between common childhood infections (e.g. enterovirus [EV]) and speech and language. The impetus for evaluating this association is provided by evidence linking inflammation to neurodevelopmental disorders. Herein we sought to determine whether an association exists between EV infection and subsequent diagnoses of speech and language impairments in a nationwide population-based sample in Taiwan. METHODS Our study acquired data from the Taiwan National Health Insurance Research Database. The sample was comprised of individuals under 18 years of age with newly diagnosed EV infection during the period from January 1998 to December 2011. 39669 eligible cases were compared to matched controls and assessed during the study period for incident cases of speech and language impairments. Cox regression analyses were applied, adjusting for sex, age and other physical and mental problems. RESULTS In the fully adjusted Cox regression model for hazard ratios, EV infection as positively associated with speech and language impairments (HR = 1.14, 95% CI: 1.06-1.22) after adjusting for age, sex and other confounds. Compared to the control group, the hazard ratio for speech and language impairments was 1.12 (95% CI: 1.03-1.21) amongst the group of EV infection without hospitalization, and 1.26 (95% CI: 1.10-1.45) amongst the group of EV infection with hospitalization. CONCLUSIONS EV infection is temporally associated with incident speech and language impairments. Our findings herein provide rationale for educating families that EV infection may be associated with subsequent speech and language problems in susceptible individuals and that monitoring for such a presentation would be warranted. WHAT THIS PAPER ADDS?: Speech and language impairments associated with central nervous system infections have been reported in the literature. EV are medically important human pathogens and associated with select neuropsychiatric diseases. Notwithstanding, relatively few reports have mentioned the effects of EV infection on speech and language problems. Our study used a nationwide longitudinal dataset and identified that children with EV infection have a greater risk for speech and language impairments as compared with control group. Infected children combined other comorbidities or risk factors might have greater possibility to develop speech problems. Clinicians should be vigilant for the onset of language developmental abnormalities of preschool children with EV infection.
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Affiliation(s)
- Tai-Hsin Hung
- Department of Psychiatry, Chang Gung Memorial Hospital and University, Chiayi, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan; Chang Gung Institute of Technology, Taoyuan, Taiwan
| | - Vincent Chin-Hung Chen
- Department of Psychiatry, Chang Gung Memorial Hospital and University, Chiayi, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yao-Hsu Yang
- Department for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Chiayi, Taiwan; Center of Excellence for Chang Gung Research Datalink, Chang Gung Memorial Hospital, Chiayi, Taiwan; Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health, Taipei, Taiwan
| | - Ching-Shu Tsai
- Department of Psychiatry, Chang Gung Memorial Hospital and University, Chiayi, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan; Chang Gung Institute of Technology, Taoyuan, Taiwan
| | - Mong-Liang Lu
- Department of Psychiatry, Wan-Fang Hospital & School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Roger S McIntyre
- Department of Psychiatry, University of Toronto, Toronto, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, Canada
| | - Yena Lee
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, Canada
| | - Kuo-You Huang
- Department of Speech Language Pathology and Audiology, Chung Shan Medical University and Hospital, Taichung, Taiwan.
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25
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Xue YC, Feuer R, Cashman N, Luo H. Enteroviral Infection: The Forgotten Link to Amyotrophic Lateral Sclerosis? Front Mol Neurosci 2018; 11:63. [PMID: 29593492 PMCID: PMC5857577 DOI: 10.3389/fnmol.2018.00063] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 02/14/2018] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative disease that primarily attacks motor neurons in the brain and spinal cord, leading to progressive paralysis and ultimately death. Currently there is no effective therapy. The majority of ALS cases are sporadic, with no known family history; unfortunately the etiology remains largely unknown. Contribution of Enteroviruses (EVs), a family of positive-stranded RNA viruses including poliovirus, coxsackievirus, echovirus, enterovirus-A71 and enterovirus-D68, to the development of ALS has been suspected as they can target motor neurons, and patients with prior poliomyelitis show a higher risk of motor neuron disease. Multiple efforts have been made to detect enteroviral genome in ALS patient tissues over the past two decades; however the clinical data are controversial and a causal relationship has not yet been established. Recent evidence from in vitro and animal studies suggests that enterovirus-induced pathology remarkably resembles the cellular and molecular phenotype of ALS, indicating a possible link between enteroviral infection and ALS pathogenesis. In this review, we summarize the nature of enteroviral infection, including route of infection, cells targeted, and viral persistence within the central nervous system (CNS). We review the molecular mechanisms underlying viral infection and highlight the similarity between viral pathogenesis and the molecular and pathological features of ALS, and finally, discuss the potential role of enteroviral infection in frontotemporal dementia (FTD), a disease that shares common clinical, genetic, and pathological features with ALS, and the significance of anti-viral therapy as an option for the treatment of ALS.
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Affiliation(s)
- Yuan Chao Xue
- Centre for Heart and Lung Innovation, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Ralph Feuer
- The Integrated Regenerative Research Institute at San Diego State University, San Diego, CA, United States
| | - Neil Cashman
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Honglin Luo
- Centre for Heart and Lung Innovation, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
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26
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Dahm T, Adams O, Boettcher S, Diedrich S, Morozov V, Hansman G, Fallier-Becker P, Schädler S, Burkhardt CJ, Weiss C, Stump-Guthier C, Ishikawa H, Schroten H, Schwerk C, Tenenbaum T, Rudolph H. Strain-dependent effects of clinical echovirus 30 outbreak isolates at the blood-CSF barrier. J Neuroinflammation 2018; 15:50. [PMID: 29463289 PMCID: PMC5819246 DOI: 10.1186/s12974-018-1061-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 01/09/2018] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Echovirus (E) 30 (E-30) meningitis is characterized by neuroinflammation involving immune cell pleocytosis at the protective barriers of the central nervous system (CNS). In this context, infection of the blood-cerebrospinal fluid barrier (BCSFB), which has been demonstrated to be involved in enteroviral CNS pathogenesis, may affect the tight junction (TJ) and adherens junction (AJ) function and morphology. METHODS We used an in vitro human choroid plexus epithelial (HIBCPP) cell model to investigate the effect of three clinical outbreak strains (13-311, 13-759, and 14-397) isolated in Germany in 2013, and compared them to E-30 Bastianni. Conducting transepithelial electrical resistance (TEER), paracellular dextran flux measurement, quantitative real-time polymerase chain reaction (qPCR), western blot, and immunofluorescence analysis, we investigated TJ and AJ function and morphology as well as strain-specific E-30 infection patterns. Additionally, transmission electron and focused ion beam microscopy electron microscopy (FIB-SEM) was used to evaluate the mode of leukocyte transmigration. Genome sequencing and phylogenetic analyses were performed to discriminate potential genetic differences among the outbreak strains. RESULTS We observed a significant strain-dependent decrease in TEER with strains E-30 Bastianni and 13-311, whereas paracellular dextran flux was only affected by E-30 Bastianni. Despite strong similarities among the outbreak strains in replication characteristics and particle distribution, strain 13-311 was the only outbreak isolate revealing comparable disruptive effects on TJ (Zonula Occludens (ZO) 1 and occludin) and AJ (E-cadherin) morphology to E-30 Bastianni. Notwithstanding significant junctional alterations upon E-30 infection, we observed both para- and transcellular leukocyte migration across HIBCPP cells. Complete genome sequencing revealed differences between the strains analyzed, but no explicit correlation with the observed strain-dependent effects on HIBCPP cells was possible. CONCLUSION The findings revealed distinct E-30 strain-specific effects on barrier integrity and junctional morphology. Despite E-30-induced barrier alterations leukocyte trafficking did not exclusively occur via the paracellular route.
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Affiliation(s)
- Tobias Dahm
- Pediatric Infectious Diseases, University Children’s Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Ortwin Adams
- Institute of Virology, University Hospital, Heinrich-Heine-University, Düsseldorf, Germany
| | - Sindy Boettcher
- National Reference Centre for Poliomyelitis and Enteroviruses, Robert Koch-Institute, Berlin, Germany
| | - Sabine Diedrich
- National Reference Centre for Poliomyelitis and Enteroviruses, Robert Koch-Institute, Berlin, Germany
| | - Vasily Morozov
- Schaller Research Group, University of Heidelberg and the DKFZ, Heidelberg, Germany
- Department of Infectious Diseases, Virology, University of Heidelberg, Heidelberg, Germany
| | - Grant Hansman
- Schaller Research Group, University of Heidelberg and the DKFZ, Heidelberg, Germany
- Department of Infectious Diseases, Virology, University of Heidelberg, Heidelberg, Germany
| | - Petra Fallier-Becker
- Institute of Pathology and Neuropathology, University Hospital of Tübingen, Tübingen, Germany
| | | | - Claus J. Burkhardt
- NMI Natural and Medical Sciences Institute, University of Tübingen, Reutlingen, Germany
| | - Christel Weiss
- Institute of Medical Statistics and Biomathematics, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Carolin Stump-Guthier
- Pediatric Infectious Diseases, University Children’s Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Hiroshi Ishikawa
- Department of NDU Life Sciences, School of life Dentistry, The Nippon Dental University, Tokyo, Japan
| | - Horst Schroten
- Pediatric Infectious Diseases, University Children’s Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Christian Schwerk
- Pediatric Infectious Diseases, University Children’s Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Tobias Tenenbaum
- Pediatric Infectious Diseases, University Children’s Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Henriette Rudolph
- Pediatric Infectious Diseases, University Children’s Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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27
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Lauer AN, Tenenbaum T, Schroten H, Schwerk C. The diverse cellular responses of the choroid plexus during infection of the central nervous system. Am J Physiol Cell Physiol 2017; 314:C152-C165. [PMID: 29070490 DOI: 10.1152/ajpcell.00137.2017] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The choroid plexus (CP) is responsible for the production of a large amount of the cerebrospinal fluid (CSF). As a highly vascularized structure, the CP also presents a significant frontier between the blood and the central nervous system (CNS). To seal this border, the epithelium of the CP forms the blood-CSF barrier, one of the most important barriers separating the CNS from the blood. During the course of infectious disease, cells of the CP can experience interactions with intruding pathogens, especially when the CP is used as gateway for entry into the CNS. In return, the CP answers to these encounters with diverse measures. Here, we will review the distinct responses of the CP during infection of the CNS, which include engaging of signal transduction pathways, the regulation of gene expression in the host cells, inflammatory cell response, alterations of the barrier, and, under certain circumstances, cell death. Many of these actions may contribute to stage an immunological response against the pathogen and subsequently help in the clearance of the infection.
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Affiliation(s)
- Alexa N Lauer
- Department of Pediatrics, Pediatric Infectious Diseases, Medical Faculty Mannheim, Heidelberg University , Mannheim , Germany
| | - Tobias Tenenbaum
- Department of Pediatrics, Pediatric Infectious Diseases, Medical Faculty Mannheim, Heidelberg University , Mannheim , Germany
| | - Horst Schroten
- Department of Pediatrics, Pediatric Infectious Diseases, Medical Faculty Mannheim, Heidelberg University , Mannheim , Germany
| | - Christian Schwerk
- Department of Pediatrics, Pediatric Infectious Diseases, Medical Faculty Mannheim, Heidelberg University , Mannheim , Germany
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28
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Ma W, Zhang Y, Gao C, Fariss RN, Tam J, Wong WT. Monocyte infiltration and proliferation reestablish myeloid cell homeostasis in the mouse retina following retinal pigment epithelial cell injury. Sci Rep 2017; 7:8433. [PMID: 28814744 PMCID: PMC5559448 DOI: 10.1038/s41598-017-08702-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 07/13/2017] [Indexed: 02/07/2023] Open
Abstract
Age-related macular degeneration (AMD), a leading contributor of vision loss, currently lacks comprehensive treatment. While AMD histopathology involves retinal pigment epithelium (RPE) injury associated with immune cell infiltration, the nature of immune cell responses to RPE injury remains undefined. We induced RPE injury pharmacologically and genetically in transgenic mouse models in which microglia and systemic monocytes were separately tagged, enabling a spatial and temporal dissection of the relative contributions of microglia vs. monocytes to post-injury changes. We found that myeloid cell responses to RPE injury occur in stages: (1) an early mobilization of endogenous microglia from the inner retina to the RPE layer, followed by (2) subsequent monocyte infiltration from the retinal vasculature into the inner retina that replenishes the local myeloid cell population in a CCR2-regulated manner. These altered distributions of myeloid cells post-injury were long-lived, with recruited monocytes acquiring the distribution, markers, and morphologies of neighboring endogenous microglia in a durable manner. These findings indicate the role played by infiltrating monocytes in maintaining myeloid cell homeostasis in the retina following AMD-relevant RPE injury and provide a foundation for understanding and therapeutically modulating immune aspects in retinal disease.
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Affiliation(s)
- Wenxin Ma
- Unit on Neuron-Glia Interactions in Retinal Disease, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Yikui Zhang
- Unit on Neuron-Glia Interactions in Retinal Disease, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Chun Gao
- Biological Imaging Core, National Eye Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Robert N Fariss
- Biological Imaging Core, National Eye Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Johnny Tam
- Ophthalmic Genetics and Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Wai T Wong
- Unit on Neuron-Glia Interactions in Retinal Disease, National Institutes of Health, Bethesda, MD, 20892, USA.
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29
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Anastasina M, Domanska A, Palm K, Butcher S. Human picornaviruses associated with neurological diseases and their neutralization by antibodies. J Gen Virol 2017. [PMID: 28631594 DOI: 10.1099/jgv.0.000780] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Picornaviruses are the most commonly encountered infectious agents in mankind. They typically cause mild infections of the gastrointestinal or respiratory tract, but sometimes also invade the central nervous system. There, they can cause severe diseases with long-term sequelae and even be lethal. The most infamous picornavirus is poliovirus, for which significant epidemics of poliomyelitis were reported from the end of the nineteenth century. A successful vaccination campaign has brought poliovirus close to eradication, but neurological diseases caused by other picornaviruses have increasingly been reported since the late 1990s. In this review we focus on enterovirus 71, coxsackievirus A16, enterovirus 68 and human parechovirus 3, which have recently drawn attention because of their links to severe neurological diseases. We discuss the clinical relevance of these viruses and the primary role of humoral immunity in controlling them, and summarize current knowledge on the neutralization of such viruses by antibodies.
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Affiliation(s)
- Maria Anastasina
- Institute of Biotechnology and Department of Biosciences, University of Helsinki, Viikinkaari 1, 00790 Helsinki, Finland.,Protobios LLC, Mäealuse 4, 12618 Tallinn, Estonia
| | - Aušra Domanska
- Institute of Biotechnology and Department of Biosciences, University of Helsinki, Viikinkaari 1, 00790 Helsinki, Finland
| | - Kaia Palm
- Protobios LLC, Mäealuse 4, 12618 Tallinn, Estonia.,Institute of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Sarah Butcher
- Institute of Biotechnology and Department of Biosciences, University of Helsinki, Viikinkaari 1, 00790 Helsinki, Finland
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30
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Stress-Induced Alterations of Immune Profile in Animals Suffering by Tau Protein-Driven Neurodegeneration. Cell Mol Neurobiol 2017; 38:243-259. [PMID: 28405903 DOI: 10.1007/s10571-017-0491-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 03/29/2017] [Indexed: 01/01/2023]
Abstract
Alzheimer's disease (AD) is a multifactorial disorder; neurofibrillary pathology composed of tau protein is found side by side with amyloid-β deposits and extensive neuroinflammation. The immune system of the brain is considered as one of the factors that could influence the speed of the progression of AD neuropathology as a potential mediator of the damage induced by AD protein deposits. Alzheimer's disease pathology can be impacted by psychological stress; however, signalling pathways in background are not well known. We have explored possible avenues of how stress could influence the brain's immune system in a rat model of AD. Animals were subjected either to a single or multiple instances of immobilization stress. The analysis of a panel of immunity-related genes was used to evaluate the impact of stress on the immune response in the brain. We have identified 19 stress-responsive genes that are involved in neuroinflammation accompanying tau pathology: Nos2, Ptgs2, IL-8rb, C5, Mmp9, Cx3cr1, CD40lg, Adrb2, IL-6, IL-6r, IL-1r2, Ccl2, Ccl3, Ccl4, Ccl12, TNF-α, IL-1α, IL-1β, IL-10. Most of them are deregulated under the stress conditions also in control animals; however, the magnitude of the response to either acute or chronic stress differs. This can lead to serious influence, most probably to acceleration of neurodegenerative phenotype in diseased animals. Several of the genes (IL-1β, Casp1, Cx3cr1 and C5) are deregulated solely in tauopathic animals. The stress-induced changes in the inflammatory picture of the brain highlight the fact that the brain's immune response is highly responsive to environmental stimuli. The pattern of changes is indicative of an attempt to protect the brain in the short term, while being potentially detrimental to the response against a long-term pathological process such as neurofibrillary degeneration.
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31
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Dahm T, Frank F, Adams O, Lindner HA, Ishikawa H, Weiss C, Schwerk C, Schroten H, Tenenbaum T, Rudolph H. Sequential transmigration of polymorphonuclear cells and naive CD3 + T lymphocytes across the blood-cerebrospinal-fluid barrier in vitro following infection with Echovirus 30. Virus Res 2017; 232:54-62. [PMID: 28161477 DOI: 10.1016/j.virusres.2017.01.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 10/20/2022]
Abstract
Viral meningitis by non-polio enteroviruses (NPEV) is a major public health burden causing fatal outcomes especially in the younger population. Strong evidence exists that the blood-cerebrospinal-fluid (CSF) barrier (BCSFB) serves as an entry point for enterovirus and leucocytes into the central nervous system (CNS). Moreover, analysis of clinical CSF specimens of patients with a NPEV infection revealed a predominance of polymorphonuclear granulocytes (PMN) in the early phase and mononuclear cells in the later course of meningitis. By applying a functional in vitro model of the BCSFB consisting of human choroid plexus papilloma (HIBCPP) cells, we aimed to analyse the mechanisms of sequential migration of PMN and naive CD3+ T lymphocytes following infection with Echovirus 30 (EV30). EV30 infection led to increased transmigration of PMN and naive CD3+ T lymphocytes. Transmigration of PMN was significantly enhanced in the presence of naive CD3+ T lymphocytes, but not vice versa. The barrier function was not differentially altered under the respective conditions. Infection with EV30 led to an upregulation of CXCL3 and CXCL11 on the RNA-level. Additional analysis of cytokine secretion revealed relatively high concentrations of IL-8, CCL20, CXCL3, CXCL10 and M-CSF. Overall, there was a predominantly polar direction of cytokine secretion to the basolateral side. IL-7 was the only cytokine which was strongly secreted to the apical side and that was enhanced following EV30 infection in our model. In conclusion, this study highlights the role of the choroid plexus and cytokines in regulating leucocyte entry into the CNS in the context of EV30 infection.
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Affiliation(s)
- Tobias Dahm
- Paediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Franziska Frank
- Paediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Ortwin Adams
- Institute for Virology, University Hospital, Heinrich-Heine-University, Düsseldorf, Germany
| | - Holger A Lindner
- Department of Anaesthesiology and Surgical Intensive Care Medicine, University Medical Centre Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Hiroshi Ishikawa
- Department of Anatomy, Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minatoku, Tokyo 105-8461, Japan
| | - Christel Weiss
- Department of Statistics, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Christian Schwerk
- Paediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Horst Schroten
- Paediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Tobias Tenenbaum
- Paediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Henriette Rudolph
- Paediatric Infectious Diseases, University Children's Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany.
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Cloarec R, Bauer S, Luche H, Buhler E, Pallesi-Pocachard E, Salmi M, Courtens S, Massacrier A, Grenot P, Teissier N, Watrin F, Schaller F, Adle-Biassette H, Gressens P, Malissen M, Stamminger T, Streblow DN, Bruneau N, Szepetowski P. Cytomegalovirus Infection of the Rat Developing Brain In Utero Prominently Targets Immune Cells and Promotes Early Microglial Activation. PLoS One 2016; 11:e0160176. [PMID: 27472761 PMCID: PMC4966896 DOI: 10.1371/journal.pone.0160176] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 07/14/2016] [Indexed: 11/25/2022] Open
Abstract
Background Congenital cytomegalovirus infections are a leading cause of neurodevelopmental disorders in human and represent a major health care and socio-economical burden. In contrast with this medical importance, the pathophysiological events remain poorly known. Murine models of brain cytomegalovirus infection, mostly neonatal, have brought recent insights into the possible pathogenesis, with convergent evidence for the alteration and possible involvement of brain immune cells. Objectives and Methods In order to confirm and expand those findings, particularly concerning the early developmental stages following infection of the fetal brain, we have created a model of in utero cytomegalovirus infection in the developing rat brain. Rat cytomegalovirus was injected intraventricularly at embryonic day 15 (E15) and the brains analyzed at various stages until the first postnatal day, using a combination of gene expression analysis, immunohistochemistry and multicolor flow cytometry experiments. Results Rat cytomegalovirus infection was increasingly seen in various brain areas including the choroid plexi and the ventricular and subventricular areas and was prominently detected in CD45low/int, CD11b+ microglial cells, in CD45high, CD11b+ cells of the myeloid lineage including macrophages, and in CD45+, CD11b– lymphocytes and non-B non-T cells. In parallel, rat cytomegalovirus infection of the developing rat brain rapidly triggered a cascade of pathophysiological events comprising: chemokines upregulation, including CCL2-4, 7 and 12; infiltration by peripheral cells including B-cells and monocytes at E17 and P1, and T-cells at P1; and microglia activation at E17 and P1. Conclusion In line with previous findings in neonatal murine models and in human specimen, our study further suggests that neuroimmune alterations might play critical roles in the early stages following cytomegalovirus infection of the brain in utero. Further studies are now needed to determine which role, whether favorable or detrimental, those putative double-edge swords events actually play.
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Affiliation(s)
- Robin Cloarec
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
| | - Sylvian Bauer
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
| | - Hervé Luche
- CIPHE (Centre d'Immunophénomique), PHENOMIN, UM2 Aix-Marseille University, Marseille, France
- INSERM US012, Marseille, France
- CNRS UMS3367, Marseille, France
| | - Emmanuelle Buhler
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
- PPGI platform, INMED, Marseille, France
| | - Emilie Pallesi-Pocachard
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
- PBMC platform, INMED, Marseille, France
| | - Manal Salmi
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
| | - Sandra Courtens
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
| | - Annick Massacrier
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
| | - Pierre Grenot
- CIPHE (Centre d'Immunophénomique), PHENOMIN, UM2 Aix-Marseille University, Marseille, France
- CNRS UMS3367, Marseille, France
| | - Natacha Teissier
- INSERM, U1141, Paris, France
- Paris Diderot University, Sorbonne Paris Cité, Paris, France
- PremUP, Paris, France
| | - Françoise Watrin
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
| | - Fabienne Schaller
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
- PPGI platform, INMED, Marseille, France
| | - Homa Adle-Biassette
- INSERM, U1141, Paris, France
- Paris Diderot University, Sorbonne Paris Cité, Paris, France
- PremUP, Paris, France
| | - Pierre Gressens
- INSERM, U1141, Paris, France
- Paris Diderot University, Sorbonne Paris Cité, Paris, France
- PremUP, Paris, France
| | - Marie Malissen
- CIPHE (Centre d'Immunophénomique), PHENOMIN, UM2 Aix-Marseille University, Marseille, France
- INSERM US012, Marseille, France
- CNRS UMS3367, Marseille, France
| | - Thomas Stamminger
- Institute for Clinical and Molecular Virology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Daniel N. Streblow
- Vaccine & Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Nadine Bruneau
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
- * E-mail: (NB); (PS)
| | - Pierre Szepetowski
- INSERM U901, Marseille, France
- Mediterranean Institute of Neurobiology (INMED), Marseille, France
- UMR_S901, Aix-Marseille University, Marseille, France
- * E-mail: (NB); (PS)
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Alirezaei M, Flynn CT, Wood MR, Harkins S, Whitton JL. Coxsackievirus can exploit LC3 in both autophagy-dependent and -independent manners in vivo. Autophagy 2016; 11:1389-407. [PMID: 26090585 DOI: 10.1080/15548627.2015.1063769] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
RNA viruses modify intracellular membranes to produce replication scaffolds. In pancreatic cells, coxsackievirus B3 (CVB3) hijacks membranes from the autophagy pathway, and in vivo disruption of acinar cell autophagy dramatically delays CVB3 replication. This is reversed by expression of GFP-LC3, indicating that CVB3 may acquire membranes from an alternative, autophagy-independent, source(s). Herein, using 3 recombinant CVB3s (rCVB3s) encoding different proteins (proLC3, proLC3(G120A), or ATG4B(C74A)), we show that CVB3 is, indeed, flexible in its utilization of cellular membranes. When compared with a control rCVB3, all 3 viruses replicated to high titers in vivo, and caused severe pancreatitis. Most importantly, each virus appeared to subvert membranes in a unique manner. The proLC3 virus produced a large quantity of LC3-I which binds to phosphatidylethanolamine (PE), affording access to the autophagy pathway. The proLC3(G120A) protein cannot attach to PE, and instead binds to the ER-resident protein SEL1L, potentially providing an autophagy-independent source of membranes. Finally, the ATG4B(C74A) protein sequestered host cell LC3-I, causing accumulation of immature phagophores, and massive membrane rearrangement. Taken together, our data indicate that some RNA viruses can exploit a variety of different intracellular membranes, potentially maximizing their replication in each of the diverse cell types that they infect in vivo.
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Affiliation(s)
- Mehrdad Alirezaei
- a Department of Immunology and Microbial Science; The Scripps Research Institute ; La Jolla , CA USA
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Neuroinvasion and Inflammation in Viral Central Nervous System Infections. Mediators Inflamm 2016; 2016:8562805. [PMID: 27313404 PMCID: PMC4897715 DOI: 10.1155/2016/8562805] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 03/16/2016] [Accepted: 04/12/2016] [Indexed: 12/31/2022] Open
Abstract
Neurotropic viruses can cause devastating central nervous system (CNS) infections, especially in young children and the elderly. The blood-brain barrier (BBB) and the blood-cerebrospinal fluid barrier (BCSFB) have been described as relevant sites of entry for specific viruses as well as for leukocytes, which are recruited during the proinflammatory response in the course of CNS infection. In this review, we illustrate examples of established brain barrier models, in which the specific reaction patterns of different viral families can be analyzed. Furthermore, we highlight the pathogen specific array of cytokines and chemokines involved in immunological responses in viral CNS infections. We discuss in detail the link between specific cytokines and chemokines and leukocyte migration profiles. The thorough understanding of the complex and interrelated inflammatory mechanisms as well as identifying universal mediators promoting CNS inflammation is essential for the development of new diagnostic and treatment strategies.
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Tsai CS, Yang YH, Huang KY, Lee Y, McIntyre RS, Chen VCH. Association of Tic Disorders and Enterovirus Infection: A Nationwide Population-Based Study. Medicine (Baltimore) 2016; 95:e3347. [PMID: 27082591 PMCID: PMC4839835 DOI: 10.1097/md.0000000000003347] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
There has been growing interest in the association between infectious disease and mental disorders, but an association between enterovirus (EV) infection and tic disorders has not been sufficiently explored. Herein, we aim to investigate the association between EV infection and incidence of tic disorders in a nationwide population-based sample using Taiwan's National Health Insurance Research Database. We identified individuals aged ≤18 years prior to 2005 with an inpatient diagnosis of EV infection and/or history of EV infection. Tic disorder was operationalized using International Classification of Disease, Revision 9, Clinical Modification (ICD-9-CM) codes 307.20-307.23. A total of 47,998 individuals with history of EV infection were compared to 47,998 sex-, age-, and urbanization-matched controls on incidence of tic disorders. The mean ± standard deviation follow-up period for all subjects was 9.7 ± 3.6 years; the mean latency period between initial EV infection and incident diagnosis of tic disorder diagnosis was 5.4 ± 2.8 years. EV infection was significantly associated with greater incidence of tic disorders (hazard ratio [HR] = 1.24, 95% CI: 1.07-1.45). When subgrouped on the basis of central nervous system (CNS) involvement, EV infection with CNS involvement was not significantly associated with greater incidence of tic disorders when compared to controls (HR = 1.25, 95% CI: 0.64-2.43); EV infection without CNS involvement was significantly associated greater incidence of tic disorders when compared to controls (HR = 1.24, 95% CI: 1.07-1.45). In addition, hospitalization for an EV infection did not increase the hazard for greater incidence of tic disorders (HR = 1.32, 95% CI: 1.04-1.67 with hospitalization and 1.22, 95% CI: 1.04-1.44 without hospitalization). EV infection is temporally associated with incidence of tic disorders. Our observations add to the growing body of literature implicating immune-inflammatory system in the pathoetiology of brain disorders in a subpopulation of individuals and serve as a clarion call for surveillance of symptoms suggestive of tic disorders in individuals with history of EV infection.
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Affiliation(s)
- Ching-Shu Tsai
- From the Department of Psychiatry, Chang Gung Memorial Hospital and University, Chiayi (C-ST, VC-HC); Graduate Institute of Clinical Medical Sciences, Chang Gung University (C-ST, VC-HC); Chang Gung Institute of Technology, Taoyuan (C-ST); Department for Traditional Chinese Medicine (Y-HY); Center of Excellence for Chang Gung Research Datalink, Chang Gung Memorial Hospital, Chiayi (Y-HY); Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health, Taipei (Y-HY), Department of Speech, Language Pathology and Audiology, Chung Shan Medical University, Taichung, Taiwan (K-YH); and Department of Psychiatry, University of Toronto, Mood Disorders Psychopharmacology Unit, University Health Network (YL, RSM), Toronto, Ontario, Canada
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Neurotropic Enterovirus Infections in the Central Nervous System. Viruses 2015; 7:6051-66. [PMID: 26610549 PMCID: PMC4664993 DOI: 10.3390/v7112920] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/06/2015] [Accepted: 11/13/2015] [Indexed: 02/03/2023] Open
Abstract
Enteroviruses are a group of positive-sense single stranded viruses that belong to the Picornaviridae family. Most enteroviruses infect humans from the gastrointestinal tract and cause mild symptoms. However, several enteroviruses can invade the central nervous system (CNS) and result in various neurological symptoms that are correlated to mortality associated with enteroviral infections. In recent years, large outbreaks of enteroviruses occurred worldwide. Therefore, these neurotropic enteroviruses have been deemed as re-emerging pathogens. Although these viruses are becoming large threats to public health, our understanding of these viruses, especially for non-polio enteroviruses, is limited. In this article, we review recent advances in the trafficking of these pathogens from the peripheral to the central nervous system, compare their cell tropism, and discuss the effects of viral infections in their host neuronal cells.
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Bergmann S, Steinert M. From Single Cells to Engineered and Explanted Tissues: New Perspectives in Bacterial Infection Biology. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2015; 319:1-44. [PMID: 26404465 DOI: 10.1016/bs.ircmb.2015.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cell culture techniques are essential for studying host-pathogen interactions. In addition to the broad range of single cell type-based two-dimensional cell culture models, an enormous amount of coculture systems, combining two or more different cell types, has been developed. These systems enable microscopic visualization and molecular analyses of bacterial adherence and internalization mechanisms and also provide a suitable setup for various biochemical, immunological, and pharmacological applications. The implementation of natural or synthetical scaffolds elevated the model complexity to the level of three-dimensional cell culture. Additionally, several transwell-based cell culture techniques are applied to study bacterial interaction with physiological tissue barriers. For keeping highly differentiated phenotype of eukaryotic cells in ex vivo culture conditions, different kinds of microgravity-simulating rotary-wall vessel systems are employed. Furthermore, the implementation of microfluidic pumps enables constant nutrient and gas exchange during cell cultivation and allows the investigation of long-term infection processes. The highest level of cell culture complexity is reached by engineered and explanted tissues which currently pave the way for a more comprehensive view on microbial pathogenicity mechanisms.
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Affiliation(s)
- Simone Bergmann
- Institute of Microbiology, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
| | - Michael Steinert
- Institute of Microbiology, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
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38
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Sin J, Mangale V, Thienphrapa W, Gottlieb RA, Feuer R. Recent progress in understanding coxsackievirus replication, dissemination, and pathogenesis. Virology 2015; 484:288-304. [PMID: 26142496 DOI: 10.1016/j.virol.2015.06.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 04/23/2015] [Accepted: 06/03/2015] [Indexed: 01/01/2023]
Abstract
Coxsackieviruses (CVs) are relatively common viruses associated with a number of serious human diseases, including myocarditis and meningo-encephalitis. These viruses are considered cytolytic yet can persist for extended periods of time within certain host tissues requiring evasion from the host immune response and a greatly reduced rate of replication. A member of Picornaviridae family, CVs have been historically considered non-enveloped viruses - although recent evidence suggest that CV and other picornaviruses hijack host membranes and acquire an envelope. Acquisition of an envelope might provide distinct benefits to CV virions, such as resistance to neutralizing antibodies and efficient nonlytic viral spread. CV exhibits a unique tropism for progenitor cells in the host which may help to explain the susceptibility of the young host to infection and the establishment of chronic disease in adults. CVs have also been shown to exploit autophagy to maximize viral replication and assist in unconventional release from target cells. In this article, we review recent progress in clarifying virus replication and dissemination within the host cell, identifying determinants of tropism, and defining strategies utilized by the virus to evade the host immune response. Also, we will highlight unanswered questions and provide future perspectives regarding the potential mechanisms of CV pathogenesis.
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Affiliation(s)
- Jon Sin
- Cedars-Sinai Heart Institute, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Vrushali Mangale
- The Integrated Regenerative Research Institute (IRRI) at San Diego State University, Cell & Molecular Biology Joint Doctoral Program, Department of Biology, San Diego State University, San Diego, CA 92182-4614, USA
| | - Wdee Thienphrapa
- The Integrated Regenerative Research Institute (IRRI) at San Diego State University, Cell & Molecular Biology Joint Doctoral Program, Department of Biology, San Diego State University, San Diego, CA 92182-4614, USA
| | - Roberta A Gottlieb
- Cedars-Sinai Heart Institute, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Ralph Feuer
- The Integrated Regenerative Research Institute (IRRI) at San Diego State University, Cell & Molecular Biology Joint Doctoral Program, Department of Biology, San Diego State University, San Diego, CA 92182-4614, USA.
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Demeestere D, Libert C, Vandenbroucke RE. Clinical implications of leukocyte infiltration at the choroid plexus in (neuro)inflammatory disorders. Drug Discov Today 2015; 20:928-41. [PMID: 25979470 DOI: 10.1016/j.drudis.2015.05.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 04/30/2015] [Accepted: 05/05/2015] [Indexed: 12/29/2022]
Abstract
The choroid plexus (CP) is a highly vascularized organ located in the brain ventricles and contains a single epithelial cell layer forming the blood-cerebrospinal fluid barrier (BCSFB). This barrier is crucial for immune surveillance in health and is an underestimated gate for entry of immune cells during numerous inflammatory disorders. Several of these disorders are accompanied by disturbance of the BCSFB and increased leukocyte infiltration, which affects neuroinflammation. Understanding the mechanism of immune cell entry at the CP might lead to identification of new therapeutic targets. Here, we focus on current knowledge of leukocyte infiltration at the CP in inflammatory conditions and its therapeutic implications.
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Affiliation(s)
- Delphine Demeestere
- Inflammation Research Center, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Claude Libert
- Inflammation Research Center, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Roosmarijn E Vandenbroucke
- Inflammation Research Center, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
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Schwerk C, Tenenbaum T, Kim KS, Schroten H. The choroid plexus-a multi-role player during infectious diseases of the CNS. Front Cell Neurosci 2015; 9:80. [PMID: 25814932 PMCID: PMC4357259 DOI: 10.3389/fncel.2015.00080] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 02/23/2015] [Indexed: 12/22/2022] Open
Abstract
The choroid plexus (CP) is the source of cerebrospinal fluid (CSF) production and location of the blood-CSF barrier (BCSFB), which is constituted by the epithelial cells of the CP. Several infectious pathogens including viruses, bacteria, fungi and parasites cross the BCSFB to enter the central nervous system (CNS), ultimately leading to inflammatory infectious diseases like meningitis and meningoencephalitis. The CP responds to this challenge by the production of chemokines and cytokines as well as alterations of the barrier function of the BCSFB. During the course of CNS infectious disease host immune cells enter the CNS, eventually contributing to the cellular damage caused by the disease. Additional complications, which are in certain cases caused by choroid plexitis, can arise due to the response of the CP to the pathogens. In this review we will give an overview on the multiple functions of the CP during brain infections highlighting the CP as a multi-role player during infectious diseases of the CNS. In this context the importance of tools for investigation of these CP functions and a possible suitability of the CP as therapeutic target will be discussed.
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Affiliation(s)
- Christian Schwerk
- Department of Pediatrics, Pediatric Infectious Diseases, Medical Faculty Mannheim, Heidelberg University Mannheim, Germany
| | - Tobias Tenenbaum
- Department of Pediatrics, Pediatric Infectious Diseases, Medical Faculty Mannheim, Heidelberg University Mannheim, Germany
| | - Kwang Sik Kim
- Division of Pediatric Infectious Diseases, Johns Hopkins University School of Medicine Baltimore, MD, USA
| | - Horst Schroten
- Department of Pediatrics, Pediatric Infectious Diseases, Medical Faculty Mannheim, Heidelberg University Mannheim, Germany
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Reineke LC, Lloyd RE. The stress granule protein G3BP1 recruits protein kinase R to promote multiple innate immune antiviral responses. J Virol 2015; 89:2575-89. [PMID: 25520508 PMCID: PMC4325707 DOI: 10.1128/jvi.02791-14] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 12/08/2014] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Stress granules (SGs) are cytoplasmic storage sites containing translationally silenced mRNPs that can be released to resume translation after stress subsides. We previously showed that poliovirus 3C proteinase cleaves the SG-nucleating protein G3BP1, blocking the ability of cells to form SGs late in infection. Many other viruses also target G3BP1 and inhibit SG formation, but the reasons why these functions evolved are unclear. Previously, we also showed a link between G3BP1-induced SGs and protein kinase R (PKR)-mediated translational control, but the mechanism of PKR interplay with SG and the antiviral consequences are unknown. Here, we show that G3BP1 exhibits antiviral activity against several enteroviruses, whereas truncated G3BP1 that cannot form SGs does not. G3BP1-induced SGs are linked to activation of innate immune transcriptional responses through NF-κB and JNK. The G3BP1-induced SGs also recruit PKR and other antiviral proteins. We show that the PXXP domain within G3BP1 is essential for the recruitment of PKR to SGs, for eIF2α phosphorylation driven by PKR, and for nucleating SGs of normal composition. We also show that deletion of the PXXP domain in G3BP1 compromises its antiviral activity. These findings tie PKR activation to its recruitment to SGs by G3BP1 and indicate that G3BP1 promotes innate immune responses at both the transcriptional and translational levels and integrates cellular stress responses and innate immunity. IMPORTANCE Stress granules appear during virus infection, and their importance is not well understood. Previously, it was assumed that they were nonfunctional artifacts associated with cellular stress. PKR is a well-known antiviral protein; however, its regulation in cells is not well understood. Our work links cellular stress granules with activation of PKR and other innate immune pathways through the activity of G3BP1, a critical stress granule component. The ability of stress granules and G3BP1 to activate PKR and other innate immune transcriptional responses indicates that G3BP1 is an antiviral protein. This work helps to refine a longstanding paradigm indicating stress granules are inert structures and explains why G3BP1 is subverted by many viruses to promote a productive infection.
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Affiliation(s)
- Lucas C Reineke
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Richard E Lloyd
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
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Volle R, Archimbaud C, Couraud PO, Romero IA, Weksler B, Mirand A, Pereira B, Henquell C, Peigue-Lafeuille H, Bailly JL. Differential permissivity of human cerebrovascular endothelial cells to enterovirus infection and specificities of serotype EV-A71 in crossing an in vitro model of the human blood-brain barrier. J Gen Virol 2015; 96:1682-95. [PMID: 25711966 DOI: 10.1099/vir.0.000103] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Human cerebral microvascular endothelial cells (hCMEC/D3 cell line) form a steady polarized barrier when cultured in vitro on a permeable membrane. Their susceptibility to enterovirus (EV) strains was analysed to investigate how these viruses may cross the blood-brain barrier. A sample of 88 virus strains was selected on phylogenetic features amongst 43 epidemiologically relevant types of the four EV species A-D. The EV-A71 genome was replicated at substantial rates, whilst the infectious virus was released at extremely low but sustained rates at both barrier sides for at least 4 days. EV-A71 antigens were detected in a limited number of cells. The properties of the endothelial barrier (structure and permeability) remained intact throughout infection. The chronic EV-A71 infection was in sharp contrast to the productive infection of cytolytic EVs (e.g. echoviruses E-6 and E-30). The hCMEC/D3 barriers infected with the latter EVs exhibited elevated proportions of apoptotic and necrotic cells, which resulted in major injuries to the endothelial barriers with a dramatic increase of paracellular permeability and virus crossing to the abluminal side. The following intracellular rearrangements were also seen: early destruction of the actin cytoskeleton, remodelling of intracellular membranes and reorganization of the mitochondrion network in a small cluster near the perinuclear space.
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Affiliation(s)
- Romain Volle
- 1Clermont Université, Université d'Auvergne, EPIE, EA 4843, Clermont-Ferrand, France 2CHU Clermont-Ferrand, Service de Virologie, Clermont-Ferrand, France
| | - Christine Archimbaud
- 1Clermont Université, Université d'Auvergne, EPIE, EA 4843, Clermont-Ferrand, France 2CHU Clermont-Ferrand, Service de Virologie, Clermont-Ferrand, France
| | | | - Ignacio A Romero
- 5Department of Life, Health and Chemical Sciences, Open University, Milton Keynes, UK
| | | | - Audrey Mirand
- 1Clermont Université, Université d'Auvergne, EPIE, EA 4843, Clermont-Ferrand, France 2CHU Clermont-Ferrand, Service de Virologie, Clermont-Ferrand, France
| | - Bruno Pereira
- 3CHU Clermont-Ferrand, DRCI, Clermont-Ferrand, France
| | - Cécile Henquell
- 2CHU Clermont-Ferrand, Service de Virologie, Clermont-Ferrand, France
| | - Hélène Peigue-Lafeuille
- 1Clermont Université, Université d'Auvergne, EPIE, EA 4843, Clermont-Ferrand, France 2CHU Clermont-Ferrand, Service de Virologie, Clermont-Ferrand, France
| | - Jean-Luc Bailly
- 1Clermont Université, Université d'Auvergne, EPIE, EA 4843, Clermont-Ferrand, France 2CHU Clermont-Ferrand, Service de Virologie, Clermont-Ferrand, France
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Swanson PA, McGavern DB. Viral diseases of the central nervous system. Curr Opin Virol 2015; 11:44-54. [PMID: 25681709 DOI: 10.1016/j.coviro.2014.12.009] [Citation(s) in RCA: 201] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 12/17/2014] [Indexed: 11/18/2022]
Abstract
Virus-induced diseases of the central nervous system (CNS) represent a significant burden to human health worldwide. The complexity of these diseases is influenced by the sheer number of different neurotropic viruses, the diverse routes of CNS entry, viral tropism, and the immune system. Using a combination of human pathological data and experimental animal models, we have begun to uncover many of the mechanisms that viruses use to enter the CNS and cause disease. This review highlights a selection of neurotropic viruses that infect the CNS and explores the means by which they induce neurological diseases such as meningitis, encephalitis, and myelitis.
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Affiliation(s)
- Phillip A Swanson
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, United States
| | - Dorian B McGavern
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, United States.
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The impact of juvenile coxsackievirus infection on cardiac progenitor cells and postnatal heart development. PLoS Pathog 2014; 10:e1004249. [PMID: 25079373 PMCID: PMC4117602 DOI: 10.1371/journal.ppat.1004249] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 05/29/2014] [Indexed: 11/19/2022] Open
Abstract
Coxsackievirus B (CVB) is an enterovirus that most commonly causes a self-limited febrile illness in infants, but cases of severe infection can manifest in acute myocarditis. Chronic consequences of mild CVB infection are unknown, though there is an epidemiologic association between early subclinical infections and late heart failure, raising the possibility of subtle damage leading to late-onset dysfunction, or chronic ongoing injury due to inflammatory reactions during latent infection. Here we describe a mouse model of juvenile infection with a subclinical dose of coxsackievirus B3 (CVB3) which showed no evident symptoms, either immediately following infection or in adult mice. However following physiological or pharmacologically-induced cardiac stress, juvenile-infected adult mice underwent cardiac hypertrophy and dilation indicative of progression to heart failure. Evaluation of the vasculature in the hearts of adult mice subjected to cardiac stress showed a compensatory increase in CD31+ blood vessel formation, although this effect was suppressed in juvenile-infected mice. Moreover, CVB3 efficiently infected juvenile c-kit+ cells, and cardiac progenitor cell numbers were reduced in the hearts of juvenile-infected adult mice. These results suggest that the exhausted cardiac progenitor cell pool following juvenile CVB3 infection may impair the heart's ability to increase capillary density to adapt to increased load. Coxsackievirus B (CVB) is a significant human pathogen, causing myocarditis, aseptic meningitis and encephalitis. The lasting consequences of juvenile CVB infection on the developing host have yet to be adequately inspected. Here, we show that CVB efficiently infected juvenile cardiac progenitor cells both in culture and the young heart. Furthermore, we describe a mouse model of juvenile infection with a subclinical dose of CVB which showed no symptoms of disease into adulthood. However following physiological or pharmacologically-induced cardiac stress, juvenile-infected mice underwent cardiac hypertrophy and dilation indicative of progression to heart failure. These results suggest that mild CVB infection in the young host may impair the ability of the heart to adapt to increased load leading to pathological remodeling later in adult life.
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Buskiewicz IA, Koenig A, Roberts B, Russell J, Shi C, Lee SH, Jung JU, Huber SA, Budd RC. c-FLIP-Short reduces type I interferon production and increases viremia with coxsackievirus B3. PLoS One 2014; 9:e96156. [PMID: 24816846 PMCID: PMC4015977 DOI: 10.1371/journal.pone.0096156] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 04/03/2014] [Indexed: 11/19/2022] Open
Abstract
Cellular FLIP (c-FLIP) is an enzymatically inactive paralogue of caspase-8 and as such can block death receptor-induced apoptosis. However, independent of death receptors, c-FLIP-Long (c-FLIPL) can heterodimerize with and activate caspase-8. This is critical for promoting the growth and survival of T lymphocytes as well as the regulation of the RIG-I helicase pathway for type I interferon production in response to viral infections. Truncated forms of FLIP also exist in mammalian cells (c-FLIPS) and certain viruses (v-FLIP), which lack the C-terminal domain that activates caspase-8. Thus, the ratio of c-FLIPL to these short forms of FLIP may greatly influence the outcome of an immune response. We examined this model in mice transgenically expressing c-FLIPS in T cells during infection with Coxsackievirus B3 (CVB3). In contrast to our earlier findings of reduced myocarditis and mortality with CVB3 infection of c-FLIPL-transgenic mice, c-FLIPS-transgenic mice were highly sensitive to CVB3 infection as manifested by increased cardiac virus titers, myocarditis score, and mortality compared to wild-type C57BL/6 mice. This observation was paralleled by a reduction in serum levels of IL-10 and IFN-α in CVB3-infected c-FLIPS mice. In vitro infection of c-FLIPS T cells with CVB3 confirmed these results. Furthermore, molecular studies revealed that following infection of cells with CVB3, c-FLIPL associates with mitochondrial antiviral signaling protein (MAVS), increases caspase-8 activity and type I IFN production, and reduces viral replication, whereas c-FLIPS promotes the opposite phenotype.
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Affiliation(s)
- Iwona A. Buskiewicz
- Department of Pathology, Vermont Center for Immunology and Infectious Diseases, University of Vermont, Burlington, Vermont, United States of America
- * E-mail:
| | - Andreas Koenig
- Department of Medicine, Vermont Center for Immunology and Infectious Diseases, University of Vermont, Burlington, Vermont, United States of America
| | - Brian Roberts
- Department of Pathology, Vermont Center for Immunology and Infectious Diseases, University of Vermont, Burlington, Vermont, United States of America
| | - Jennifer Russell
- Department of Medicine, Vermont Center for Immunology and Infectious Diseases, University of Vermont, Burlington, Vermont, United States of America
| | - Cuixia Shi
- Department of Medicine, Vermont Center for Immunology and Infectious Diseases, University of Vermont, Burlington, Vermont, United States of America
| | - Sun-Hwa Lee
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, California, United States of America.
| | - Jae U. Jung
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, California, United States of America.
| | - Sally A. Huber
- Department of Pathology, Vermont Center for Immunology and Infectious Diseases, University of Vermont, Burlington, Vermont, United States of America
| | - Ralph C. Budd
- Department of Medicine, Vermont Center for Immunology and Infectious Diseases, University of Vermont, Burlington, Vermont, United States of America
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Coxsackievirus B exits the host cell in shed microvesicles displaying autophagosomal markers. PLoS Pathog 2014; 10:e1004045. [PMID: 24722773 PMCID: PMC3983045 DOI: 10.1371/journal.ppat.1004045] [Citation(s) in RCA: 236] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Accepted: 02/17/2014] [Indexed: 01/08/2023] Open
Abstract
Coxsackievirus B3 (CVB3), a member of the picornavirus family and enterovirus genus, causes viral myocarditis, aseptic meningitis, and pancreatitis in humans. We genetically engineered a unique molecular marker, “fluorescent timer” protein, within our infectious CVB3 clone and isolated a high-titer recombinant viral stock (Timer-CVB3) following transfection in HeLa cells. “Fluorescent timer” protein undergoes slow conversion of fluorescence from green to red over time, and Timer-CVB3 can be utilized to track virus infection and dissemination in real time. Upon infection with Timer-CVB3, HeLa cells, neural progenitor and stem cells (NPSCs), and C2C12 myoblast cells slowly changed fluorescence from green to red over 72 hours as determined by fluorescence microscopy or flow cytometric analysis. The conversion of “fluorescent timer” protein in HeLa cells infected with Timer-CVB3 could be interrupted by fixation, suggesting that the fluorophore was stabilized by formaldehyde cross-linking reactions. Induction of a type I interferon response or ribavirin treatment reduced the progression of cell-to-cell virus spread in HeLa cells or NPSCs infected with Timer-CVB3. Time lapse photography of partially differentiated NPSCs infected with Timer-CVB3 revealed substantial intracellular membrane remodeling and the assembly of discrete virus replication organelles which changed fluorescence color in an asynchronous fashion within the cell. “Fluorescent timer” protein colocalized closely with viral 3A protein within virus replication organelles. Intriguingly, infection of partially differentiated NPSCs or C2C12 myoblast cells induced the release of abundant extracellular microvesicles (EMVs) containing matured “fluorescent timer” protein and infectious virus representing a novel route of virus dissemination. CVB3 virions were readily observed within purified EMVs by transmission electron microscopy, and infectious virus was identified within low-density isopycnic iodixanol gradient fractions consistent with membrane association. The preferential detection of the lipidated form of LC3 protein (LC3 II) in released EMVs harboring infectious virus suggests that the autophagy pathway plays a crucial role in microvesicle shedding and virus release, similar to a process previously described as autophagosome-mediated exit without lysis (AWOL) observed during poliovirus replication. Through the use of this novel recombinant virus which provides more dynamic information from static fluorescent images, we hope to gain a better understanding of CVB3 tropism, intracellular membrane reorganization, and virus-associated microvesicle dissemination within the host. Enteroviruses are significant human pathogens, causing myocarditis, aseptic meningitis and encephalitis. The mechanisms of enterovirus dissemination in the host and cell-to-cell spread may be critical factors influencing viral pathogenesis. Here, we have generated a recombinant coxsackievirus expressing “fluorescence timer” protein (Timer-CVB3) which assists in following the progression of infection within the host. Unexpectedly, we observed the shedding of microvesicles containing virus in partially-differentiated progenitor cells infected with Timer-CVB3. These extracellular microvesicles (EMVs) were released in high levels following cellular differentiation, and may play a role in virus dissemination. Timer-CVB3 will be a valuable tool in monitoring virus spread in the infected host.
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Bissel SJ, Winkler CC, DelTondo J, Wang G, Williams K, Wiley CA. Coxsackievirus B4 myocarditis and meningoencephalitis in newborn twins. Neuropathology 2014; 34:429-437. [PMID: 24702280 DOI: 10.1111/neup.12121] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 03/14/2014] [Accepted: 03/16/2014] [Indexed: 11/29/2022]
Abstract
Coxsackievirus B4 (CB4) is a picornavirus associated with a variety of human diseases, including neonatal meningoencephalitis, myocarditis and type 1 diabetes. We report the pathological findings in twin newborns who died during an acute infection. The twins were born 1 month premature but were well and neurologically intact at birth. After a week they developed acute lethal neonatal sepsis and seizures. Histopathology demonstrated meningoencephalitis and severe myocarditis, as well as pancreatitis, adrenal medullitis and nephritis. Abundant CB4 sequences were identified in nucleic acid extracted from the brain and heart. In situ hybridization with probes to CB4 demonstrated infection of neurons, myocardiocytes, endocrine pancreas and adrenal medulla. The distribution of infected cells and immune response is consistent with reported clinical symptomatology where systemic and neurological diseases are the result of CB4 infection of select target cells.
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Affiliation(s)
- Stephanie J Bissel
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Caitlin C Winkler
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Joseph DelTondo
- Allegheny County Medical Examiner, Pittsburgh, Pennsylvania, USA
| | - Guoji Wang
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Karl Williams
- Allegheny County Medical Examiner, Pittsburgh, Pennsylvania, USA
| | - Clayton A Wiley
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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In vivo ablation of type I interferon receptor from cardiomyocytes delays coxsackieviral clearance and accelerates myocardial disease. J Virol 2014; 88:5087-99. [PMID: 24574394 DOI: 10.1128/jvi.00184-14] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
UNLABELLED Acute coxsackievirus B3 (CVB3) infection is one of the most prevalent causes of acute myocarditis, a disease that frequently is identified only after the sudden death of apparently healthy individuals. CVB3 infects cardiomyocytes, but the infection is highly focal, even in the absence of a strong adaptive immune response, suggesting that virus spread within the heart may be tightly constrained by the innate immune system. Type I interferons (T1IFNs) are an obvious candidate, and T1IFN receptor (T1IFNR) knockout mice are highly susceptible to CVB3 infection, succumbing within a few days of challenge. Here, we investigated the role of T1IFNs in the heart using a mouse model in which the T1IFNR gene can be ablated in vivo, specifically in cardiomyocytes. We found that T1IFN signaling into cardiomyocytes contributed substantially to the suppression of viral replication and infectious virus yield in the heart; in the absence of such signaling, virus titers were markedly elevated by day 3 postinfection (p.i.) and remained high at day 12 p.i., a time point at which virus was absent from genetically intact littermates, suggesting that the T1IFN-unresponsive cardiomyocytes may act as a safe haven for the virus. Nevertheless, in these mice the myocardial infection remained highly focal, despite the cardiomyocytes' inability to respond to T1IFN, indicating that other factors, as yet unidentified, are sufficient to prevent the more widespread dissemination of the infection throughout the heart. The absence of T1IFN signaling into cardiomyocytes also was accompanied by a profound acceleration and exacerbation of myocarditis and by a significant increase in mortality. IMPORTANCE Acute coxsackievirus B3 (CVB3) infection is one of the most common causes of acute myocarditis, a serious and sometimes fatal disease. To optimize treatment, it is vital that we identify the immune factors that limit virus spread in the heart and other organs. Type I interferons play a key role in controlling many virus infections, but it has been suggested that they may not directly impact CVB3 infection within the heart. Here, using a novel line of transgenic mice, we show that these cytokines signal directly into cardiomyocytes, limiting viral replication, myocarditis, and death.
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Puccini JM, Ruller CM, Robinson SM, Knopp KA, Buchmeier MJ, Doran KS, Feuer R. Distinct neural stem cell tropism, early immune activation, and choroid plexus pathology following coxsackievirus infection in the neonatal central nervous system. J Transl Med 2014; 94:161-81. [PMID: 24378643 DOI: 10.1038/labinvest.2013.138] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 09/25/2013] [Accepted: 10/18/2013] [Indexed: 12/21/2022] Open
Abstract
Coxsackievirus B3 (CVB3) and lymphocytic choriomeningitis virus (LCMV) are both neurotropic RNA viruses, which can establish a persistent infection and cause meningitis and encephalitis in the neonatal host. Utilizing our neonatal mouse model of infection, we evaluated the consequences of early viral infection upon the host central nervous system (CNS) by comparing CVB3 and LCMV infection. Both viruses expressed high levels of viral protein in the choroid plexus and subventricular zone (SVZ), a region of neurogenesis. LCMV infected a greater number of cells in the SVZ and targeted both nestin(+) (neural progenitor cell marker) and olig2(+) (glial progenitor marker) cells at a relatively equal proportion. In contrast, CVB3 preferentially infected nestin(+) cells within the SVZ. Microarray analysis revealed differential kinetics and unique host gene expression changes for each infection. MHC class I gene expression, several developmental-related Hox genes, and transthyretin (TTR), a protein secreted in the cerebrospinal fluid by the choroid plexus, were specifically downregulated following CVB3 infection. Also, we identified severe pathology in the choroid plexus of CVB3-infected animals at 48 h post infection accompanied by a decrease in the level of TTR and carbonic anhydrase II. These results demonstrate broader neural progenitor and stem cell (NPSC) tropism for LCMV in the neonatal CNS, whereas CVB3 targeted a more specific subset of NPSCs, stimulated a distinct early immune response, and induced significant acute damage in the choroid plexus.
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Affiliation(s)
- Jenna M Puccini
- The Integrated Regenerative Research Institute (IRRI) at San Diego State University, Cell & Molecular Biology Joint Doctoral Program, Department of Biology, San Diego State University, San Diego, CA, USA
| | - Chelsea M Ruller
- The Integrated Regenerative Research Institute (IRRI) at San Diego State University, Cell & Molecular Biology Joint Doctoral Program, Department of Biology, San Diego State University, San Diego, CA, USA
| | - Scott M Robinson
- The Integrated Regenerative Research Institute (IRRI) at San Diego State University, Cell & Molecular Biology Joint Doctoral Program, Department of Biology, San Diego State University, San Diego, CA, USA
| | - Kristeene A Knopp
- Department of Molecular Biology and Biochemistry, UC Irvine, Irvine, CA, USA
| | - Michael J Buchmeier
- Department of Molecular Biology and Biochemistry, UC Irvine, Irvine, CA, USA
| | - Kelly S Doran
- Department of Biology and Center for Microbial Sciences, San Diego State University, San Diego, CA, USA
| | - Ralph Feuer
- The Integrated Regenerative Research Institute (IRRI) at San Diego State University, Cell & Molecular Biology Joint Doctoral Program, Department of Biology, San Diego State University, San Diego, CA, USA
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50
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Chen Z, Yang L, Liu Y, Tang A, Li X, Zhang J, Yang Z. LY294002 and Rapamycin promote coxsackievirus-induced cytopathic effect and apoptosis via inhibition of PI3K/AKT/mTOR signaling pathway. Mol Cell Biochem 2013; 385:169-77. [PMID: 24072614 DOI: 10.1007/s11010-013-1825-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 09/13/2013] [Indexed: 01/23/2023]
Abstract
Coxsackievirus B3 (CVB3) is a common human pathogen for acute myocarditis, pancreatitis, non-septic meningitis, and encephalitis; it induces a direct cytopathic effect (CPE) and apoptosis on infected cells. The Phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT/PKB)/mammalian target of Rapamycin (mTOR) signaling pathway regulates several cellular processes and it is one of the most important pathways in human networks. However, the effect and mechanism of PI3K/AKT/mTOR signaling pathway in CVB3 infected cells are poorly understood. In this study, we demonstrate that inhibition of PI3K/AKT/mTOR signaling pathway increased CVB3-induced CPE and apoptosis in HeLa cells. The activity of downstream targets of PI3K and mTOR is attenuated after CVB3 infection and inhibitors of PI3K and mTOR made their activity to decrease more significantly. We further show that LY294002 and Rapamycin, the inhibitor of PI3K and mTOR respectively, promote CVB3-induced CPE and apoptosis. Taken together, these data illustrate a new and imperative role for PI3K/AKT/mTOR signaling in CVB3 infection in HeLa cells and suggest an useful approach for the therapy of CVB3 infection.
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Affiliation(s)
- Zhiheng Chen
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha, 410013, Hunan, People's Republic of China,
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