1
|
Vistarop A, Ferressini Gerpe NM, Preciado MV, De Matteo E, Chabay P. Expression of EBV-encoded genes in children with asymptomatic infection detected by sensitive methods. Virology 2023; 587:109847. [PMID: 37515946 DOI: 10.1016/j.virol.2023.109847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 07/31/2023]
Abstract
Epstein-Barr virus (EBV) is an usually harmless virus whose oncogenic properties in vitro are related to its ability to transform lymphoid cells, and, in consequence, it can be associated with lymphomas. Since a few studies detected EBV presence in supposedly EBV-negative lymphomas, our aim was to evaluate EBV presence by sensitive gene expression assays in the tonsils from healthy pediatric donors from a region with high incidence of EBV-associated lymphomas. EBERs transcripts were detected by View RNA ISH in all cases, even in cases assessed negative by widely used in situ hybridization. The presence of LMP1 transcripts was proved in 93% of cases, co-expressed with EBNA2 in 30%. In this study, evidence for the expression of different latent and lytic viral genes in a population of young age of primary infection, detected with more sensitive methods, in particular at the germinal center, where most EBV-associated lymphomas originate, was provided.
Collapse
Affiliation(s)
- A Vistarop
- Multidisciplinary Institute for Investigation in Pediatric Pathologies (IMIPP), CONICET-GCBA. Molecular Biology Laboratory, Pathology Division, Ricardo Gutiérrez Children's Hospital, Gallo1330, Buenos Aires, Argentina
| | - N M Ferressini Gerpe
- Multidisciplinary Institute for Investigation in Pediatric Pathologies (IMIPP), CONICET-GCBA. Molecular Biology Laboratory, Pathology Division, Ricardo Gutiérrez Children's Hospital, Gallo1330, Buenos Aires, Argentina
| | - M V Preciado
- Multidisciplinary Institute for Investigation in Pediatric Pathologies (IMIPP), CONICET-GCBA. Molecular Biology Laboratory, Pathology Division, Ricardo Gutiérrez Children's Hospital, Gallo1330, Buenos Aires, Argentina
| | - E De Matteo
- Multidisciplinary Institute for Investigation in Pediatric Pathologies (IMIPP), CONICET-GCBA. Molecular Biology Laboratory, Pathology Division, Ricardo Gutiérrez Children's Hospital, Gallo1330, Buenos Aires, Argentina; Pathology Division, Ricardo Gutiérrez Children's Hospital, Gallo 1330, Buenos Aires, Argentina
| | - P Chabay
- Multidisciplinary Institute for Investigation in Pediatric Pathologies (IMIPP), CONICET-GCBA. Molecular Biology Laboratory, Pathology Division, Ricardo Gutiérrez Children's Hospital, Gallo1330, Buenos Aires, Argentina.
| |
Collapse
|
2
|
Caldirola MS, Raccio AG, Giovanni DD, Gaillard MI, Preciado MV. Pediatric inborn errors of immunity causing hemophagocytic lymphohistiocytosis: Case report and review of the literature. J Leukoc Biol 2022; 112:607-615. [PMID: 35899932 DOI: 10.1002/jlb.5mr0622-037r] [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: 04/12/2022] [Revised: 06/28/2022] [Indexed: 11/07/2022] Open
Abstract
Inborn errors of immunity are a group of genetic disorders caused by mutations that affect the development and/or function of several compartments of the immune system, predisposing patients to infections, autoimmunity, allergy and malignancies. In this regard, mutations that affect proteins involved in trafficking, priming, docking, or membrane fusion will impair the exocytosis of lytic granules of effector NK and cytotoxic T lymphocytes. This may predispose patients to hemophagocytic lymphohistiocytosis, a life-threatening immune disorder characterized by systemic lymphocyte and macrophage activation, and increased levels of cytokines, which lead to an uncontrolled hyperinflammation state and progressive multiorgan damage. In this review, we will describe a clinical case and recent advances in inborn errors of immunity predisposing to hemophagocytic lymphohistiocytosis. Summary sentence: Review of recent advances in inborn errors of immunity predisposing to hemophagocytic lymphohistiocytosis.
Collapse
Affiliation(s)
- María Soledad Caldirola
- Servicio Inmunología, Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP- CONICET-GCBA)- Hospital de Niños "Dr. Ricardo Gutiérrez,", Buenos Aires, Argentina
| | - Andrea Gómez Raccio
- Servicio de Inmunología, Hospital de Niños "Dr. Ricardo Gutiérrez,", Buenos Aires, Argentina
| | - Daniela Di Giovanni
- Servicio de Inmunología, Hospital de Niños "Dr. Ricardo Gutiérrez,", Buenos Aires, Argentina
| | - María Isabel Gaillard
- Servicio Inmunología, Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP- CONICET-GCBA)- Hospital de Niños "Dr. Ricardo Gutiérrez,", Buenos Aires, Argentina.,Sección Citometría - Laboratorio Stamboulian, Buenos Aires, Argentina
| | - María Victoria Preciado
- Laboratorio de Biología Molecular, División Patología, Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP), CONICET-GCBA, Hospital de Niños "Dr. Ricardo Gutiérrez,", Buenos Aires, Argentina
| |
Collapse
|
3
|
"M1 macrophage polarization prevails in EBV infected children in an immuneregulatory environment". J Virol 2021; 96:e0143421. [PMID: 34643432 DOI: 10.1128/jvi.01434-21] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Macrophages can be polarized toward a proinflammatory phenotype (M1) (CD68+) or to an anti-inflammatory one (M2) (CD163+). Polarization can be triggered by cytokines such as IFN-γ for M1, or IL-10 and TGF-β, for M2. In the context of pediatric EBV infection, little is known about macrophage polarization in EBV primary or persistent infection. When studying tonsils of patients undergoing primary infection (PI), healthy carrier (HC), reactivation (R) and not infected (NI), M1 profile prevailed in all infection status. However, an increase in M2 cells was observed in those patients with broader expression of latency antigens, in particular EBNA2. Tonsils from primary infected patients showed an increased IL-10 expression, whereas, unexpectedly, TGF-β expression correlated with M1 marker. Furthermore, an inverse correlation was demonstrated between CD68 and IFN-γ. Therefore, in the context of asymptomatic infection in children, M1 macrophage polarization prevails, even in the presence of IL-10 and TGF-ꞵ immunomodulatory cytokines, and it might be independent from lymphomagenesis process. Our finding indicates that macrophages may have a significant plasticity in response to different types of extrinsic stimuli, and further studies are required to investigate M1 polarization under anti-inflammatory stimuli. Importance Most studies on EBV primary infection have been performed in adolescents and young adult populations with Infectious Mononucleosis (IM) in developed countries. Furthermore, studies related to macrophage polarization were assessed in EBV-associated lymphomas, but little is known about macrophage polarization in the context of primary infection at the site of viral entry and replication, the tonsils. Therefore, the aim of this study was to characterize macrophage response in children undergoing EBV primary or persistent infection, in order to enlighten the role of macrophages in viral pathogenesis, in a population with a high incidence of EBV-associated lymphomas in children younger than 10 years old. This study may contribute to explain, at least in part, the asymptomatic viral infection in children from an underdeveloped region, since M1 polarization pattern prevails, but in a regulatory environment.
Collapse
|
4
|
Dickerson F, Katsafanas E, Origoni A, Squire A, Khushalani S, Newman T, Rowe K, Stallings C, Savage CLG, Sweeney K, Nguyen TT, Breier A, Goff D, Ford G, Jones-Brando L, Yolken R. Exposure to Epstein Barr virus and cognitive functioning in individuals with schizophrenia. Schizophr Res 2021; 228:193-197. [PMID: 33450604 PMCID: PMC8023564 DOI: 10.1016/j.schres.2020.12.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/19/2020] [Accepted: 12/25/2020] [Indexed: 12/12/2022]
Abstract
Cognitive deficits are a central feature of schizophrenia whose etiology is not fully understood. Epstein Barr Virus (EBV) is a potentially neurotropic infectious agent that can generate persistent infections with immunomodulatory effects. Previous studies have found an association between EBV antibodies and cognitive functioning in different populations, but there has been limited investigation in schizophrenia. In this study, 84 individuals with schizophrenia were administered a comprehensive neuropsychological battery, the MATRICS Consensus Cognitive Battery (MCCB). Participants also provided a blood sample, from which antibodies to the EBV whole virion and specific proteins were measured. Multivariate models were constructed to determine the association between these antibodies and cognitive performance on the MCCB overall and domain scores. Using these models, we found a significant association between the MCCB overall percent composite score and level of antibodies to the EBV Nuclear Antigen-1 (EBNA-1) protein, the Viral Capsid Antigen (VCA) protein, and the EBV whole virion. A significant association was also found for the MCCB social cognition domain with the level of antibodies to the EBV Nuclear Antigen-1 (EBNA-1) protein, the Viral Capsid Antigen (VCA) protein, and the EBV whole virion. In all cases, a higher level of antibodies was associated with a lower level cognitive performance. These findings suggest that exposure to EBV may contribute to cognitive deficits in schizophrenia, a finding which may have implications for new methods of prevention and treatment.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Kelly Rowe
- Sheppard Pratt Health System, Baltimore, MD, USA
| | | | | | | | - Tanya T Nguyen
- University of California San Diego, CA, USA; VA San Diego Healthcare System, CA, USA
| | - Alan Breier
- University of Indiana, Indianapolis, IN, USA
| | | | - Glen Ford
- VanPelt Biosciences, Rockville, MD, USA
| | | | - Robert Yolken
- Johns Hopkins School of Medicine, Baltimore, MD, USA
| |
Collapse
|
5
|
Nagpal P, Descalzi-Montoya DB, Lodhi N. The circuitry of the tumor microenvironment in adult and pediatric Hodgkin lymphoma: cellular composition, cytokine profile, EBV, and exosomes. Cancer Rep (Hoboken) 2020; 4:e1311. [PMID: 33103852 PMCID: PMC8451374 DOI: 10.1002/cnr2.1311] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 09/15/2020] [Accepted: 10/05/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Classical Hodgkin lymphoma (cHL) is a unique lymphoid malignancy with a tumor microenvironment (TME) consisting of a small number of neoplastic-Hodgkin and Reed-Sternberg (H-RS) cells (<1%), surrounded by a large number of nonneoplastic infiltrating immune cells (>90%). The TME of cHL critically depends on immune cells to support tumor growth as H-RS cells cannot survive and proliferate in isolation. RECENT FINDINGS Programmed cell death protein 1 (PD-1) ligand expressed on H-RS cells inhibits the clearance of tumor by causing T-cell exhaustion. Nivolumab and pembrolizumab, PD-1 inhibitors, have been proven to be effective in treating adult and pediatric patients with R/R cHL. Tumor-associated macrophages (TAMs) are a central component of TME and are known to cause poor prognosis in adult HL. However, the prognostic impact of CD68+ TAMs in pediatric HL remains ambiguous. EBV modulates the tumor milieu of HL and plays a strategic role in immune escape by enrichment of the TME with Treg cells and associated immunosuppressive cytokines in adult HL. In contrast, EBV+ pediatric patients have increased infiltration of CD8+ T-cells and show a better therapeutic response suggesting viral-related TME is distinct in childhood HL. The role of CASP3 in apoptosis of H-RS cells and its correlation with response prediction in adult and pediatric HL suggest it may serve as a potential biomarker. In cHL, CD30, EBV, and NF-κB signaling employ exosomes for cell-cell communication that triggers the migration capacity of fibroblasts, stimulate to produce proinflammatory cytokines, and help to create a tumor-supportive microenvironment. CONCLUSION The cHL microenvironment is distinct in adult and pediatric HL. Future studies are required to understand the role of interplay between H-RS cells and EBV-associated microenvironment and their clinical outcome. They may present novel therapeutic targets for the development of antilymphoma therapy.
Collapse
Affiliation(s)
- Poonam Nagpal
- College of Natural, Applied, and Health Sciences, Kean University, Union, New Jersey, USA
| | - Dante B Descalzi-Montoya
- Center for Discovery and Innovation, The John Theurer Cancer Center, Hackensack-Meridian Health, Nutley, New Jersey, USA
| | - Niraj Lodhi
- Department of Immunotherapeutics and Biotechnology, Texas Tech University Health Science Center, Abilene, Texas, USA
| |
Collapse
|