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Brummelman J, Suárez-Hernández S, de Rond L, Bogaard-van Maurik M, Molenaar P, van Wijlen E, Oomen D, Beckers L, Rots NY, van Beek J, Nicolaie MA, van Els CACM, Boer MC, Kaaijk P, Buisman AM, de Wit J. Distinct T cell responsiveness to different COVID-19 vaccines and cross-reactivity to SARS-CoV-2 variants with age and CMV status. Front Immunol 2024; 15:1392477. [PMID: 38774878 PMCID: PMC11106399 DOI: 10.3389/fimmu.2024.1392477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/09/2024] [Indexed: 05/24/2024] Open
Abstract
Introduction Accumulating evidence indicates the importance of T cell immunity in vaccination-induced protection against severe COVID-19 disease, especially against SARS-CoV-2 Variants-of-Concern (VOCs) that more readily escape from recognition by neutralizing antibodies. However, there is limited knowledge on the T cell responses across different age groups and the impact of CMV status after primary and booster vaccination with different vaccine combinations. Moreover, it remains unclear whether age has an effect on the ability of T cells to cross-react against VOCs. Methods Therefore, we interrogated the Spike-specific T cell responses in healthy adults of the Dutch population across different ages, whom received different vaccine types for the primary series and/or booster vaccination, using IFNɣ ELISpot. Cells were stimulated with overlapping peptide pools of the ancestral Spike protein and different VOCs. Results Robust Spike-specific T cell responses were detected in the vast majority of participants upon the primary vaccination series, regardless of the vaccine type (i.e. BNT162b2, mRNA-1273, ChAdOx1 nCoV-19, or Ad26.COV2.S). Clearly, in the 70+ age group, responses were overall lower and showed more variation compared to younger age groups. Only in CMV-seropositive older adults (>70y) there was a significant inverse relation of age with T cell responses. Although T cell responses increased in all age groups after booster vaccination, Spike-specific T cell frequencies remained lower in the 70+ age group. Regardless of age or CMV status, primary mRNA-1273 vaccination followed by BNT162b2 booster vaccination showed limited booster effect compared to the BNT162b2/BNT162b2 or BNT162b2/mRNA-1273 primary-booster regimen. A modest reduction in cross-reactivity to the Alpha, Delta and Omicron BA.1, but not the Beta or Gamma variant, was observed after primary vaccination. Discussion Together, this study shows that age, CMV status, but also the primary-booster vaccination regimen influence the height of the vaccination-induced Spike-specific T cell response, but did not impact the VOC cross-reactivity.
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Affiliation(s)
- Jolanda Brummelman
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Sara Suárez-Hernández
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Lia de Rond
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Marjan Bogaard-van Maurik
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Petra Molenaar
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Emma van Wijlen
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Debbie Oomen
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Lisa Beckers
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Nynke Y. Rots
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Josine van Beek
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Mioara A. Nicolaie
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Cécile A. C. M. van Els
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
- Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Mardi C. Boer
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Patricia Kaaijk
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Anne-Marie Buisman
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Jelle de Wit
- Center for Infectious Disease Control, Dutch National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
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Wood EK, Reid BM, Sheerar DS, Donzella B, Gunnar MR, Coe CL. Lingering Effects of Early Institutional Rearing and Cytomegalovirus Infection on the Natural Killer Cell Repertoire of Adopted Adolescents. Biomolecules 2024; 14:456. [PMID: 38672472 PMCID: PMC11047877 DOI: 10.3390/biom14040456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/26/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Adversity during infancy can affect neurobehavioral development and perturb the maturation of physiological systems. Dysregulated immune and inflammatory responses contribute to many of the later effects on health. Whether normalization can occur following a transition to more nurturing, benevolent conditions is unclear. To assess the potential for recovery, blood samples were obtained from 45 adolescents adopted by supportive families after impoverished infancies in institutional settings (post-institutionalized, PI). Their immune profiles were compared to 39 age-matched controls raised by their biological parents (non-adopted, NA). Leukocytes were immunophenotyped, and this analysis focuses on natural killer (NK) cell populations in circulation. Cytomegalovirus (CMV) seropositivity was evaluated to determine if early infection contributed to the impact of an atypical rearing. Associations with tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ), two cytokines released by activated NK cells, were examined. Compared to the NA controls, PI adolescents had a lower percent of CD56bright NK cells in circulation, higher TNF-α levels, and were more likely to be infected with CMV. PI adolescents who were latent carriers of CMV expressed NKG2C and CD57 surface markers on more NK cells, including CD56dim lineages. The NK cell repertoire revealed lingering immune effects of early rearing while still maintaining an overall integrity and resilience.
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Affiliation(s)
- Elizabeth K. Wood
- Department of Psychiatry, Oregon Health & Science University, Portland, OR 97239, USA
| | - Brie M. Reid
- Department of Psychiatry and Human Behavior, Brown University, Providence, RI 02906, USA;
| | - Dagna S. Sheerar
- Wisconsin Institute of Medical Research, University of Wisconsin Comprehensive Carbone Cancer Center, Madison, WI 53706, USA;
| | - Bonny Donzella
- Institute of Child Development, University of Minnesota, Minneapolis, MN 55455, USA; (B.D.); (M.R.G.)
| | - Megan R. Gunnar
- Institute of Child Development, University of Minnesota, Minneapolis, MN 55455, USA; (B.D.); (M.R.G.)
| | - Christopher L. Coe
- Department of Psychology, University of Wisconsin-Madison, Madison, WI 54706, USA;
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Kaur A, Vaccari M. Exploring HIV Vaccine Progress in the Pre-Clinical and Clinical Setting: From History to Future Prospects. Viruses 2024; 16:368. [PMID: 38543734 PMCID: PMC10974975 DOI: 10.3390/v16030368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/08/2024] [Accepted: 02/21/2024] [Indexed: 04/01/2024] Open
Abstract
The human immunodeficiency virus (HIV) continues to pose a significant global health challenge, with millions of people affected and new cases emerging each year. While various treatment and prevention methods exist, including antiretroviral therapy and non-vaccine approaches, developing an effective vaccine remains the most crucial and cost-effective solution to combating the HIV epidemic. Despite significant advancements in HIV research, the HIV vaccine field has faced numerous challenges, and only one clinical trial has demonstrated a modest level of efficacy. This review delves into the history of HIV vaccines and the current efforts in HIV prevention, emphasizing pre-clinical vaccine development using the non-human primate model (NHP) of HIV infection. NHP models offer valuable insights into potential preventive strategies for combating HIV, and they play a vital role in informing and guiding the development of novel vaccine candidates before they can proceed to human clinical trials.
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Affiliation(s)
- Amitinder Kaur
- Division of Immunology, Tulane National Primate Research Center, Covington, LA 70433, USA;
- School of Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Monica Vaccari
- Division of Immunology, Tulane National Primate Research Center, Covington, LA 70433, USA;
- School of Medicine, Tulane University, New Orleans, LA 70112, USA
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Wu Y, Huang P, Xu M, Zhao Q, Xu Y, Han S, Li H, Wang Y. Immunogenicity and reactogenicity of inactivated SARS-CoV-2 vaccines in healthy adults. Front Immunol 2023; 14:1152899. [PMID: 37559719 PMCID: PMC10407550 DOI: 10.3389/fimmu.2023.1152899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 07/03/2023] [Indexed: 08/11/2023] Open
Abstract
Introduction Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is highly pathogenic to humans and has caused the ongoing coronavirus disease 2019 (COVID-19) pandemic. Vaccines are one of the efficient ways to prevent the viral infection. After COVID-19 vaccination, the monitoring of the dynamic change in neutralizing antibodies is necessary to determine booster requirements. Methods We estimated the effectiveness of the inactivated vaccines by monitoring dynamic SARS-CoV-2 neutralizing antibodies for over 2 years. Additionally, we also investigated the activation of T lymphocytes (CD3+ T cells) after three doses of the inactivated vaccine. Result The results showed that the rate of reduction of SARS-CoV-2 neutralizing antibody levels gradually showed after each booster dose. The IgG/IgM level at 9 months after the third vaccination were significantly higher than those at 6 months after the second dose (p<0.0001). The expression of CD25+T cell in 18-35 age group was significantly higher than that in the other groups. Nine months after the third dose (the time of last blood sample collection), the expression of CD25+T cell in the 18-35 age group was significantly higher than that at 6 months after the second dose. CD25+T cell in the 18-35 years old group was significantly higher than 6 months after the second vaccination. Conclusion CD25, a late activation marker of lymphocytes and high-activity memory T cell subgroup, exhibited higher levels at the later stages after vaccination. COVID-19 booster vaccination in older adults and regular testing of SARS-CoV-2 neutralizing antibodies are recommended. Booster doses should be administered if the antibody level falls below the 30% inhibition rate.
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Affiliation(s)
- Yufei Wu
- Institute of Medical Sciences, the Second Hospital of Shandong University, Jinan, Shandong, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong, China
| | - Ping Huang
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong, China
| | - Mingjie Xu
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong, China
| | - Qianqian Zhao
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong, China
| | - Yihui Xu
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong, China
| | - Shuyi Han
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong, China
| | - Huanjie Li
- Institute of Medical Sciences, the Second Hospital of Shandong University, Jinan, Shandong, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yunshan Wang
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong, China
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Freeman ML, Oyebanji OA, Moisi D, Payne M, Sheehan ML, Balazs AB, Bosch J, King CL, Gravenstein S, Lederman MM, Canaday DH. Association of Cytomegalovirus Serostatus With Severe Acute Respiratory Syndrome Coronavirus 2 Vaccine Responsiveness in Nursing Home Residents and Healthcare Workers. Open Forum Infect Dis 2023; 10:ofad063. [PMID: 36861088 PMCID: PMC9969739 DOI: 10.1093/ofid/ofad063] [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: 11/01/2022] [Accepted: 01/25/2023] [Indexed: 02/09/2023] Open
Abstract
Background Latent cytomegalovirus (CMV) infection is immunomodulatory and could affect mRNA vaccine responsiveness. We sought to determine the association of CMV serostatus and prior severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection with antibody (Ab) titers after primary and booster BNT162b2 mRNA vaccinations in healthcare workers (HCWs) and nursing home (NH) residents. Methods Nursing home residents (N = 143) and HCWs (N = 107) were vaccinated and serological responses monitored by serum neutralization activity against Wuhan and Omicron (BA.1) strain spike proteins, and by bead-multiplex immunoglobulin G immunoassay to Wuhan spike protein and its receptor-binding domain (RBD). Cytomegalovirus serology and levels of inflammatory biomarkers were also measured. Results Severe acute respiratory syndrome coronavirus 2-naive CMV seropositive (CMV+) HCWs had significantly reduced Wuhan-neutralizing Ab (P = .013), anti-spike (P = .017), and anti-RBD (P = .011) responses 2 weeks after primary vaccination series compared with responses among CMV seronegative (CMV-) HCWs, adjusting for age, sex, and race. Among NH residents without prior SARS-CoV-2 infection, Wuhan-neutralizing Ab titers were similar 2 weeks after primary series but were reduced 6 months later (P = .012) between CMV+ and CMV- subjects. Wuhan-neutralizing Ab titers from CMV+ NH residents who had prior SARS-CoV-2 infection consistently trended lower than titers from SARS-CoV-2 experienced CMV- donors. These impaired Ab responses in CMV+ versus CMV- individuals were not observed after booster vaccination or with prior SARS-CoV-2 infection. Conclusions Latent CMV infection adversely affects vaccine-induced responsiveness to SARS-CoV-2 spike protein, a neoantigen not previously encountered, in both HCWs and NH residents. Multiple antigenic challenges may be required for optimal mRNA vaccine immunogenicity in CMV+ adults.
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Affiliation(s)
- Michael L Freeman
- Correspondence: M. L. Freeman, PhD, Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, 2109 Adelbert Rd., BRB 1034, Cleveland, OH 44106 (); D. H. Canaday, MD, Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, 2109 Adelbert Rd., BRB 1025, Cleveland, OH 44106 ()
| | - Oladayo A Oyebanji
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Daniela Moisi
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Michael Payne
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Maegan L Sheehan
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
| | | | - Jürgen Bosch
- Department of Health Services, Policy, and Practice, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Christopher L King
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Stefan Gravenstein
- Department of Health Services, Policy, and Practice, Brown University School of Public Health, Providence, Rhode Island, USA,Center on Innovation in Long-Term Services and Supports, Providence Veterans Administration Medical Center, Providence, Rhode Island, USA,Division of Geriatrics and Palliative Medicine, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Michael M Lederman
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - David H Canaday
- Correspondence: M. L. Freeman, PhD, Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, 2109 Adelbert Rd., BRB 1034, Cleveland, OH 44106 (); D. H. Canaday, MD, Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, 2109 Adelbert Rd., BRB 1025, Cleveland, OH 44106 ()
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Breznik JA, Huynh A, Zhang A, Bilaver L, Bhakta H, Stacey HD, Ang JC, Bramson JL, Nazy I, Miller MS, Denburg J, Costa AP, Bowdish DME. Cytomegalovirus Seropositivity in Older Adults Changes the T Cell Repertoire but Does Not Prevent Antibody or Cellular Responses to SARS-CoV-2 Vaccination. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:1892-1905. [PMID: 36426948 PMCID: PMC9666329 DOI: 10.4049/jimmunol.2200369] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 09/03/2022] [Indexed: 12/14/2022]
Abstract
Chronic infection with human CMV may contribute to poor vaccine efficacy in older adults. We assessed the effects of CMV serostatus on Ab quantity and quality, as well as cellular memory recall responses, after two and three SARS-CoV-2 mRNA vaccine doses, in older adults in assisted living facilities. CMV serostatus did not affect anti-Spike and anti-receptor-binding domain IgG Ab levels, nor neutralization capacity against wild-type or β variants of SARS-CoV-2 several months after vaccination. CMV seropositivity altered T cell expression of senescence-associated markers and increased effector memory re-expressing CD45RA T cell numbers, as has been previously reported; however, this did not impact Spike-specific CD4+ T cell memory recall responses. CMV-seropositive individuals did not have a higher incidence of COVID-19, although prior infection influenced humoral immunity. Therefore, CMV seropositivity may alter T cell composition but does not impede the durability of humoral protection or cellular memory responses after SARS-CoV-2 mRNA vaccination in older adults.
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Affiliation(s)
- Jessica A Breznik
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
- McMaster Institute for Research on Aging, McMaster University, Hamilton, Ontario, Canada
| | - Angela Huynh
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Ali Zhang
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Lucas Bilaver
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Hina Bhakta
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Hannah D Stacey
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Jann C Ang
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Jonathan L Bramson
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Ishac Nazy
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
- McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - Matthew S Miller
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Judah Denburg
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Andrew P Costa
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
- Centre for Integrated Care, St. Joseph's Health System, Hamilton, Ontario, Canada; and
| | - Dawn M E Bowdish
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
- Firestone Institute for Respiratory Health, St. Joseph's Healthcare, Hamilton, Ontario, Canada
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Effect of Cytomegalovirus on the Immune System: Implications for Aging and Mental Health. Curr Top Behav Neurosci 2022; 61:181-214. [PMID: 35871707 DOI: 10.1007/7854_2022_376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Human cytomegalovirus (HCMV) is a major modulator of the immune system leading to long-term changes in T-lymphocytes, macrophages, and natural killer (NK) cells among others. Perhaps because of this immunomodulatory capacity, HCMV infection has been linked with a host of deleterious effects including accelerated immune aging (premature mortality, increased expression of immunosenescence-linked markers, telomere shortening, speeding-up of epigenetic "clocks"), decreased vaccine immunogenicity, and greater vulnerability to infectious diseases (e.g., tuberculosis) or infectious disease-associated pathology (e.g., HIV). Perhaps not surprisingly given the long co-evolution between HCMV and humans, the virus has also been associated with beneficial effects, such as increased vaccine responsiveness, heterologous protection against infections, and protection against relapse in the context of leukemia. Here, we provide an overview of this literature. Ultimately, we focus on one other deleterious effect of HCMV, namely the emerging literature suggesting that HCMV plays a pathophysiological role in psychiatric illness, particularly depression and schizophrenia. We discuss this literature through the lens of psychological stress and inflammation, two well-established risk factors for psychiatric illness that are also known to predispose to reactivation of HCMV.
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Wagstaffe HR, Anzala O, Kibuuka H, Anywaine Z, Sirima SB, Thiébaut R, Richert L, Levy Y, Lacabaratz C, Bockstal V, Luhn K, Douoguih M, Goodier MR. NK Cell Subset Redistribution and Antibody Dependent Activation after Ebola Vaccination in Africans. Vaccines (Basel) 2022; 10:vaccines10060884. [PMID: 35746491 PMCID: PMC9230153 DOI: 10.3390/vaccines10060884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 11/21/2022] Open
Abstract
Natural killer cells play an important role in the control of viral infections both by regulating acquired immune responses and as potent innate or antibody-mediated cytotoxic effector cells. NK cells have been implicated in control of Ebola virus infections and our previous studies in European trial participants have demonstrated durable activation, proliferation and antibody-dependent NK cell activation after heterologous two-dose Ebola vaccination with adenovirus type 26.ZEBOV followed by modified vaccinia Ankara-BN-Filo. Regional variation in immunity and environmental exposure to pathogens, in particular human cytomegalovirus, have profound impacts on NK cell functional capacity. We therefore assessed the NK cell phenotype and function in African trial participants with universal exposure to HCMV. We demonstrate a significant redistribution of NK cell subsets after vaccine dose two, involving the enrichment of less differentiated CD56dimCD57− and CD56dimFcεR1γ+ (canonical) cells and the increased proliferation of these subsets. Sera taken after vaccine dose two support robust antibody-dependent NK cell activation in a standard NK cell readout; these responses correlate strongly with the concentration of anti-Ebola glycoprotein specific antibodies. These sera also promote comparable IFN-γ production in autologous NK cells taken at baseline and post-vaccine dose two. However, degranulation responses of post-vaccination NK cells were reduced compared to baseline NK cells and these effects could not be directly attributed to alterations in NK cell phenotype after vaccination. These studies demonstrate consistent changes in NK cell phenotypic composition and robust antibody-dependent NK cell function and reveal novel characteristics of these responses after heterologous two dose Ebola vaccination in African individuals.
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Affiliation(s)
- Helen R. Wagstaffe
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK;
- Department of Infectious Disease, Imperial College London, London W2 1PG, UK
| | - Omu Anzala
- KAVI—Institute of Clinical Research University of Nairobi, Nairobi 19676, Kenya;
| | - Hannah Kibuuka
- Makerere University—Walter Reed Project, Kampala 16524, Uganda;
| | - Zacchaeus Anywaine
- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe P.O. Box 49, Uganda;
| | - Sodiomon B. Sirima
- Centre National de Recherche et de Formation sur le Paludisme (CNRFP), Unité de Recherche Clinique de Banfora, 1487 Avenue Kumda Yonré, Ouagadougou 01 BP 2208, Burkina Faso;
| | - Rodolphe Thiébaut
- Bordeaux Population Health Research Center, University Bordeaux, Inserm, UMR 1219, 33000 Bordeaux, France; (R.T.); (L.R.)
- CIC 1401, EUCLID/F-CRIN Clinical Trials Platform, F-33000 Bordeaux, France
- Inria SISTM Team, F-33405 Talence, France
| | - Laura Richert
- Bordeaux Population Health Research Center, University Bordeaux, Inserm, UMR 1219, 33000 Bordeaux, France; (R.T.); (L.R.)
- CIC 1401, EUCLID/F-CRIN Clinical Trials Platform, F-33000 Bordeaux, France
- Inria SISTM Team, F-33405 Talence, France
| | - Yves Levy
- Inserm U955, Vaccine Research Institute, Université Paris-Est Créteil, Hôpital Henri Mondor, 94010 Creteil, France; (Y.L.); (C.L.)
| | - Christine Lacabaratz
- Inserm U955, Vaccine Research Institute, Université Paris-Est Créteil, Hôpital Henri Mondor, 94010 Creteil, France; (Y.L.); (C.L.)
| | - Viki Bockstal
- Janssen Vaccines and Prevention, 2333 CP Leiden, The Netherlands; (V.B.); (K.L.); (M.D.)
| | - Kerstin Luhn
- Janssen Vaccines and Prevention, 2333 CP Leiden, The Netherlands; (V.B.); (K.L.); (M.D.)
| | - Macaya Douoguih
- Janssen Vaccines and Prevention, 2333 CP Leiden, The Netherlands; (V.B.); (K.L.); (M.D.)
| | - Martin R. Goodier
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK;
- Flow Cytometry and Immunology Platform, MRC Unit the Gambia at London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
- Correspondence:
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