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Suwanmanee S, Ghimire S, Edwards J, Griffin DE. Infection of Pro- and Anti-Inflammatory Macrophages by Wild Type and Vaccine Strains of Measles Virus: NLRP3 Inflammasome Activation Independent of Virus Production. Viruses 2023; 15:v15020260. [PMID: 36851476 PMCID: PMC9961283 DOI: 10.3390/v15020260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/09/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
In humans and non-human primates, wild type (WT) measles virus (MeV) replicates extensively in lymphoid tissue and induces an innate response characteristic of NF-κB and inflammasome activation without type I interferon. In contrast, the live attenuated MeV vaccine (LAMV) replicates poorly in lymphoid tissue with little detectable in vivo cytokine production. To characterize the innate responses of macrophages to WT MeV and LAMV infection, we analyzed primary human monocyte-derived macrophages and phorbol myristic acid-matured monocytic THP-1 cells (M0) polarized to inflammatory (M1) and anti-inflammatory (M2) phenotypes 24 h after MeV infection. LAMV infected macrophages more efficiently than WT MeV but produced less virus than WT MeV-infected macrophages. Both strains induced production of NF-κB-responsive cytokines IL-6 and TNFα and inflammasome products IL-1β and IL-18 without evidence of pyroptosis. Analysis of THP-1 cells deficient in inflammasome sensors NOD-like receptor pyrin (NLRP)3, IFN-γ-inducible protein 16 (IFI16) or absent in melanoma (AIM)2; adaptor apoptosis-associated speck-like protein containing a CARD (ASC) or effector caspase 1 showed that IL-18 production was dependent on NLRP3, ASC, and caspase 1. However, M1 cells produced IL-1β in the absence of ASC or caspase 1 indicating alternate pathways for MeV-induced pro-IL-1β processing. Therefore, the innate response to in vitro infection of macrophages with both LAMV and WT MeV includes production of IL-6 and TNFα and activation of the NLRP3 inflammasome to release IL-1β and IL-18. LAMV attenuation impairs production of infectious virus but does not reduce ability to infect macrophages or innate responses to infection.
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Lin WHW, Moran E, Adams RJ, Sievers RE, Hauer D, Godin S, Griffin DE. A durable protective immune response to wild-type measles virus infection of macaques is due to viral replication and spread in lymphoid tissues. Sci Transl Med 2021; 12:12/537/eaax7799. [PMID: 32238577 DOI: 10.1126/scitranslmed.aax7799] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 08/15/2019] [Accepted: 12/02/2019] [Indexed: 12/21/2022]
Abstract
Infection with wild-type (WT) measles virus (MeV) is an important cause of childhood mortality that leads to lifelong protective immunity in survivors. WT MeV and the live-attenuated MeV used in the measles vaccine (LAMV) are antigenically similar, but the determinants of attenuation are unknown, and protective immunity induced by LAMV is less robust than that induced by WT MeV. To identify factors that contribute to these differences, we compared virologic and immunologic responses after respiratory infection of rhesus macaques with WT MeV or LAMV. In infected macaques, WT MeV replicated efficiently in B and T lymphocytes with spreading throughout lymphoid tissues resulting in prolonged persistence of viral RNA. In contrast, LAMV replicated efficiently in the respiratory tract but displayed limited spread to lymphoid tissue or peripheral blood mononuclear cells. In vitro, WT MeV and LAMV replicated similarly in macaque primary respiratory epithelial cells and human lymphocytes, but LAMV-infected lymphocytes produced little virus. Plasma concentrations of interleukin-1β (IL-1β), IL-12, interferon-γ (IFN-γ), CCL2, CCL11, CXCL9, and CXCL11 increased in macaques after WT MeV but not LAMV infection. WT MeV infection induced more protective neutralizing, hemagglutinin-specific antibodies and bone marrow plasma cells than did LAMV infection, although numbers of MeV-specific IFN-γ- and IL-4-producing T cells were comparable. Therefore, MeV attenuation may involve altered viral replication in lymphoid tissue that limited spread and decreased the host antibody response, suggesting a link between lifelong protective immunity and the ability of WT MeV, but not LAMV, to spread in lymphocytes.
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Affiliation(s)
- Wen-Hsuan W Lin
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Eileen Moran
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Robert J Adams
- Department of Molecular and Comparative Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA
| | - Robert E Sievers
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA
| | - Debra Hauer
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | | | - Diane E Griffin
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.
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Griffin DE. Measles immunity and immunosuppression. Curr Opin Virol 2021; 46:9-14. [PMID: 32891958 PMCID: PMC7994291 DOI: 10.1016/j.coviro.2020.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/16/2022]
Abstract
Effects of measles on the immune system are only partially understood. Lymphoid tissue is a primary site of measles virus (MeV) replication where CD150 is the receptor for infection of both B and T cells. Lymphocyte depletion occurs during the acute phase of infection, but initiation of the adaptive immune response leads to extensive lymphocyte proliferation, production of MeV-specific antibody and T cells, the rash and clearance of infectious virus. Viral RNA persists in lymphoid tissue accompanied by ongoing germinal center proliferation, production of antibody-secreting cells, functionally distinct populations of T cells and antibody avidity maturation to establish life-long immunity. However, at the same time diversity of pre-existing antibodies and numbers of memory and naive B cells are reduced and susceptibility to other infections is increased.
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Affiliation(s)
- Diane E Griffin
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.
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Qamruddin AA, Qamruddin R, Malik A. Analysis and Factors Associated with Measles in Larut, Matang and Selama Districts, Perak, Malaysia. Malays J Med Sci 2020; 27:130-140. [PMID: 33154709 PMCID: PMC7605828 DOI: 10.21315/mjms2020.27.5.13] [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: 05/24/2020] [Accepted: 09/12/2020] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES To determine the incidence rate of measles and the factors associated with confirmed measles cases in Larut, Matang and Selama districts. METHODS Cross-sectional analysis was carried out looking at all suspected and laboratory-confirmed measles cases in Larut, Matang and Selama districts between 2015 and 2019. Multiple logistic regression analysis was used to determine the associated factors for laboratory-confirmed measles cases. RESULTS The incidence rate for suspected measles showed an increasing trend from 2015-2019. For laboratory-confirmed measles cases, the incidence rate showed more variation with an increase to 36.11 per million population in 2017 from 5.67 per million population in 2015. The incidence rate later decreased to 10.99 per million population in 2018 and increased again to 24.47 per million population in 2019. From multiple logistic regression analysis, cases that fulfilled the case definition of measles were more likely to be laboratory-confirmed measles. On the other hand, a prior history of measles immunisation was a protective factor. CONCLUSION Measles incidence is increasing in trend. Any suspected measles cases that fulfilled the clinical case definitions need to be further investigated. Immunisation should be promoted as they are effective in preventing and eliminating measles.
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Affiliation(s)
| | | | - Ayu Malik
- Larut Matang and Selama District Health Office, Perak, Malaysia
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Insights into Thymus Development and Viral Thymic Infections. Viruses 2019; 11:v11090836. [PMID: 31505755 PMCID: PMC6784209 DOI: 10.3390/v11090836] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/03/2019] [Accepted: 09/06/2019] [Indexed: 12/16/2022] Open
Abstract
T-cell development in the thymus is a complex and highly regulated process, involving a wide variety of cells and molecules which orchestrate thymocyte maturation into either CD4+ or CD8+ single-positive (SP) T cells. Here, we briefly review the process regulating T-cell differentiation, which includes the latest advances in this field. In particular, we highlight how, starting from a pool of hematopoietic stem cells in the bone marrow, the sequential action of transcriptional factors and cytokines dictates the proliferation, restriction of lineage potential, T-cell antigen receptors (TCR) gene rearrangements, and selection events on the T-cell progenitors, ultimately leading to the generation of mature T cells. Moreover, this review discusses paradigmatic examples of viral infections affecting the thymus that, by inducing functional changes within this lymphoid gland, consequently influence the behavior of peripheral mature T-lymphocytes.
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Abstract
Measles remains an important cause of child morbidity and mortality worldwide despite the availability of a safe and efficacious vaccine. The current measles virus (MeV) vaccine was developed empirically by attenuation of wild-type (WT) MeV by in vitro passage in human and chicken cells and licensed in 1963. Additional passages led to further attenuation and the successful vaccine strains in widespread use today. Attenuation is associated with decreased replication in lymphoid tissue, but the molecular basis for this restriction has not been identified. The immune response is age dependent, inhibited by maternal antibody (Ab) and involves induction of both Ab and T cell responses that resemble the responses to WT MeV infection, but are lower in magnitude. Protective immunity is correlated with levels of neutralizing Ab, but the actual immunologic determinants of protection are not known. Because measles is highly transmissible, control requires high levels of population immunity. Delivery of the two doses of vaccine needed to achieve >90% immunity is accomplished by routine immunization of infants at 9-15 months of age followed by a second dose delivered before school entry or by periodic mass vaccination campaigns. Because delivery by injection creates hurdles to sustained high coverage, there are efforts to deliver MeV vaccine by inhalation. In addition, the safety record for the vaccine combined with advances in reverse genetics for negative strand viruses has expanded proposed uses for recombinant versions of measles vaccine as vectors for immunization against other infections and as oncolytic agents for a variety of tumors.
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Affiliation(s)
- Diane E Griffin
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health , Baltimore, Maryland
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Tajima A, Pradhan I, Trucco M, Fan Y. Restoration of Thymus Function with Bioengineered Thymus Organoids. CURRENT STEM CELL REPORTS 2016; 2:128-139. [PMID: 27529056 PMCID: PMC4982700 DOI: 10.1007/s40778-016-0040-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The thymus is the primary site for the generation of a diverse repertoire of T-cells that are essential to the efficient function of adaptive immunity. Numerous factors varying from aging, chemotherapy, radiation exposure, virus infection and inflammation contribute to thymus involution, a phenomenon manifested as loss of thymus cellularity, increased stromal fibrosis and diminished naïve T-cell output. Rejuvenating thymus function is a challenging task since it has limited regenerative capability and we still do not know how to successfully propagate thymic epithelial cells (TECs), the predominant population of the thymic stromal cells making up the thymic microenvironment. Here, we will discuss recent advances in thymus regeneration and the prospects of applying bioengineered artificial thymus organoids in regenerative medicine and solid organ transplantation.
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Affiliation(s)
- Asako Tajima
- Institute of Cellular Therapeutics, Allegheny Health Network, Pittsburgh, PA 15212
| | - Isha Pradhan
- Institute of Cellular Therapeutics, Allegheny Health Network, Pittsburgh, PA 15212
| | - Massimo Trucco
- Institute of Cellular Therapeutics, Allegheny Health Network, Pittsburgh, PA 15212
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 19104
| | - Yong Fan
- Institute of Cellular Therapeutics, Allegheny Health Network, Pittsburgh, PA 15212
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 19104
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Christensen LD, Eriksen HB, Biering-Sørensen S, Balé C, Do VA, Andersen A, Martins CL, Sodemann M, Aaby P, Benn CS. The effect of early measles vaccination on thymic size. A randomized study from Guinea-Bissau. Vaccine 2014; 32:1641-4. [PMID: 24522160 DOI: 10.1016/j.vaccine.2014.01.034] [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: 10/09/2013] [Revised: 01/05/2014] [Accepted: 01/14/2014] [Indexed: 11/27/2022]
Abstract
UNLABELLED In low-income countries early measles vaccine (MV) is associated with reduced child mortality which cannot be explained by prevention of measles. A large thymus gland in infancy is also associated with reduced mortality. We hypothesized that early MV is associated with increased thymic size. Within a randomized trial providing MV at age 4.5 and 9 months or MV only at age 9 months, thymic size was assessed by ultrasound at age 4.5 months, before randomization to early MV or no early MV, and 4 weeks later. Among 656 children, there was no effect of early MV on thymic size, the geometric mean size ratio being 0.99 (95% CI: 0.96-1.02). In a post hoc analysis early MV was associated with a negative effect in healthy children but a positive effect in ill children. In conclusion, early MV at age 4.5 months had no overall effect on thymus size 4 weeks later. TRIAL REGISTRATION http://clinicaltrials.gov, NCT01486355.
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Affiliation(s)
| | - Helle Brander Eriksen
- Research Center for Vitamins and Vaccines (CVIVA), Statens Serum Institute, Denmark; Department of Clinical Microbiology, Copenhagen University Hospital Hvidovre, Denmark.
| | - Sofie Biering-Sørensen
- Research Center for Vitamins and Vaccines (CVIVA), Statens Serum Institute, Denmark; Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau.
| | - Carlitos Balé
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau.
| | - Vu An Do
- Research Center for Vitamins and Vaccines (CVIVA), Statens Serum Institute, Denmark.
| | - Andreas Andersen
- Research Center for Vitamins and Vaccines (CVIVA), Statens Serum Institute, Denmark.
| | | | - Morten Sodemann
- Faculty of Health Sciences, University of Southern Denmark, Denmark; Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau.
| | - Peter Aaby
- Research Center for Vitamins and Vaccines (CVIVA), Statens Serum Institute, Denmark; Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau.
| | - Christine Stabell Benn
- Research Center for Vitamins and Vaccines (CVIVA), Statens Serum Institute, Denmark; Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau; OPEN, Institute for Clinical Research, University of Southern Denmark and Odense University Hospital, Denmark.
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