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Gadoth A, Ourfalian K, Basnet S, Kunzweiler C, Bohn RL, Fülöp T, Diaz-Decaro J. Potential relationship between cytomegalovirus and immunosenescence: Evidence from observational studies. Rev Med Virol 2024; 34:e2560. [PMID: 38866595 DOI: 10.1002/rmv.2560] [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: 11/16/2023] [Revised: 05/21/2024] [Accepted: 06/03/2024] [Indexed: 06/14/2024]
Abstract
Immunosenescence (IS) occurs as a natural outcome of ageing and may be described as a decline in immune system flexibility and adaptability to sufficiently respond to new, foreign antigens. Potential factors that may precipitate IS include persistent herpesvirus infections, such as cytomegalovirus (CMV). Here, we conducted a review of the literature evaluating the potential association between CMV and IS. Twenty-seven epidemiologic studies that included direct comparisons between CMV-seropositive and CMV-seronegative immunocompetent individuals were analysed. The majority of these studies (n = 20) were conducted in European populations. The strength of evidence supporting a relationship between CMV, and various IS-associated immunologic endpoints was assessed. T-cell population restructuring was the most prominently studied endpoint, described in 21 studies, most of which reported a relationship between CMV and reduced CD4:CD8 T-cell ratio or modified CD8+ T-cell levels. Telomere length (n = 4) and inflammageing (n = 3) were less frequently described in the primary literature, and the association of these endpoints with CMV and IS was less pronounced. An emergent trend from our review is the potential effect modification of the CMV-IS relationship with both sex and age, indicating the importance of considering various effector variables when evaluating associations between CMV and IS. Our analysis revealed plausible mechanisms that may underlie the larger epidemiologic trends seen in the literature that support the indirect effect of CMV on IS. Future studies are needed to clarify CMV-associated and IS-associated immunologic endpoints, as well as in more diverse global and immunocompromised populations.
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Affiliation(s)
| | | | | | | | | | - Tamas Fülöp
- Université de Sherbrooke, Sherbrooke, Québec, Canada
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Vojdani A, Koksoy S, Vojdani E, Engelman M, Benzvi C, Lerner A. Natural Killer Cells and Cytotoxic T Cells: Complementary Partners against Microorganisms and Cancer. Microorganisms 2024; 12:230. [PMID: 38276215 PMCID: PMC10818828 DOI: 10.3390/microorganisms12010230] [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: 01/03/2024] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Natural killer (NK) cells and cytotoxic T (CD8+) cells are two of the most important types of immune cells in our body, protecting it from deadly invaders. While the NK cell is part of the innate immune system, the CD8+ cell is one of the major components of adaptive immunity. Still, these two very different types of cells share the most important function of destroying pathogen-infected and tumorous cells by releasing cytotoxic granules that promote proteolytic cleavage of harmful cells, leading to apoptosis. In this review, we look not only at NK and CD8+ T cells but also pay particular attention to their different subpopulations, the immune defenders that include the CD56+CD16dim, CD56dimCD16+, CD57+, and CD57+CD16+ NK cells, the NKT, CD57+CD8+, and KIR+CD8+ T cells, and ILCs. We examine all these cells in relation to their role in the protection of the body against different microorganisms and cancer, with an emphasis on their mechanisms and their clinical importance. Overall, close collaboration between NK cells and CD8+ T cells may play an important role in immune function and disease pathogenesis. The knowledge of how these immune cells interact in defending the body against pathogens and cancers may help us find ways to optimize their defensive and healing capabilities with methods that can be clinically applied.
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Affiliation(s)
- Aristo Vojdani
- Immunosciences Laboratory, Inc., Los Angeles, CA 90035, USA
| | - Sadi Koksoy
- Cyrex Laboratories, LLC, Phoenix, AZ 85034, USA; (S.K.); (M.E.)
| | | | - Mark Engelman
- Cyrex Laboratories, LLC, Phoenix, AZ 85034, USA; (S.K.); (M.E.)
| | - Carina Benzvi
- Chaim Sheba Medical Center, The Zabludowicz Research Center for Autoimmune Diseases, Ramat Gan 52621, Israel; (C.B.); (A.L.)
| | - Aaron Lerner
- Chaim Sheba Medical Center, The Zabludowicz Research Center for Autoimmune Diseases, Ramat Gan 52621, Israel; (C.B.); (A.L.)
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Álvarez-Heredia P, Reina-Alfonso I, Domínguez-del-Castillo JJ, Hassouneh F, Gutiérrez-González C, Batista-Duharte A, Pérez AB, Sarramea F, Jaén-Moreno MJ, Camacho-Rodríguez C, Tarazona R, Solana R, Molina J, Pera A. Spanish HCMV Seroprevalence in the 21st Century. Viruses 2023; 16:6. [PMID: 38275940 PMCID: PMC10819642 DOI: 10.3390/v16010006] [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: 11/06/2023] [Revised: 12/05/2023] [Accepted: 12/16/2023] [Indexed: 01/27/2024] Open
Abstract
Human cytomegalovirus (HCMV) is linked to age-related diseases like cardiovascular disease, neurodegenerative conditions, and cancer. It can also cause congenital defects and severe illness in immunocompromised individuals. Accurate HCMV seroprevalence assessment is essential for public health planning and identifying at-risk individuals. This is the first HCMV seroprevalence study conducted in the general Spanish adult population in 30 years. We studied HCMV seroprevalence and HCMV IgG antibody titres in healthy adult donors (HDs) and HCMV-related disease patients from 2010 to 2013 and 2020 to 2023, categorized by sex and age. We compared our data with 1993 and 1999 studies in Spain. The current HCMV seroprevalence among HDs in Spain is 73.48%. In women of childbearing age, HCMV seroprevalence has increased 1.4-fold in the last decade. HCMV-seropositive individuals comprise 89.83% of CVD patients, 69% of SMI patients, and 70.37% of COVID-19 patients. No differences in HCMV seroprevalence or HCMV IgG antibody titres were observed between patients and HDs. A significant reduction in Spanish HCMV seroprevalence among HDs was observed in 1993. However, women of childbearing age have shown an upturn in the last decade that may denote a health risk in newborns and a change in HCMV seroprevalence trends.
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Affiliation(s)
- Pablo Álvarez-Heredia
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (I.R.-A.); (F.H.); (C.G.-G.); (A.B.-D.); (R.S.); (J.M.)
| | - Irene Reina-Alfonso
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (I.R.-A.); (F.H.); (C.G.-G.); (A.B.-D.); (R.S.); (J.M.)
| | - José Joaquín Domínguez-del-Castillo
- Cardiovascular Pathology (GA09), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain;
| | - Fakhri Hassouneh
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (I.R.-A.); (F.H.); (C.G.-G.); (A.B.-D.); (R.S.); (J.M.)
| | - Carmen Gutiérrez-González
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (I.R.-A.); (F.H.); (C.G.-G.); (A.B.-D.); (R.S.); (J.M.)
| | - Alexander Batista-Duharte
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (I.R.-A.); (F.H.); (C.G.-G.); (A.B.-D.); (R.S.); (J.M.)
| | - Ana-Belén Pérez
- Microbiology Service, Reina Sofia University Hospital of Cordoba/Maimonides Biomedical Research Institute (IMIBIC)/CIBERINFEC, Av. Menendez Pidal s/n, 14004 Cordoba, Spain;
| | - Fernando Sarramea
- Severe Mental Illness-Health Alerts (GA12), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (F.S.); (M.J.J.-M.); (C.C.-R.)
- Department of Morphological and Socio-Health Sciences, University of Cordoba, Av. Menendez Pidal s/n, 14004 Cordoba, Spain
- Mental Health Clinical Management Unit, Reina Sofía University Hospital/ CIBERSAM, Av. Menendez Pidal s/n, 14004 Cordoba, Spain
| | - María José Jaén-Moreno
- Severe Mental Illness-Health Alerts (GA12), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (F.S.); (M.J.J.-M.); (C.C.-R.)
- Department of Morphological and Socio-Health Sciences, University of Cordoba, Av. Menendez Pidal s/n, 14004 Cordoba, Spain
| | - Cristina Camacho-Rodríguez
- Severe Mental Illness-Health Alerts (GA12), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (F.S.); (M.J.J.-M.); (C.C.-R.)
| | - Raquel Tarazona
- Immunology Unit, Department of Physiology, University of Extremadura, 10003 Cáceres, Spain;
| | - Rafael Solana
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (I.R.-A.); (F.H.); (C.G.-G.); (A.B.-D.); (R.S.); (J.M.)
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Av. Menendez Pidal s/n, 14004 Cordoba, Spain
- Immunology and Allergy Service, Reina Sofia University Hospital of Cordoba, Av. Menendez Pidal s/n, 14004 Cordoba, Spain
| | - Juan Molina
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (I.R.-A.); (F.H.); (C.G.-G.); (A.B.-D.); (R.S.); (J.M.)
- Immunology and Allergy Service, Reina Sofia University Hospital of Cordoba, Av. Menendez Pidal s/n, 14004 Cordoba, Spain
| | - Alejandra Pera
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Av. Menendez Pidal s/n, 14004 Cordoba, Spain; (I.R.-A.); (F.H.); (C.G.-G.); (A.B.-D.); (R.S.); (J.M.)
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Av. Menendez Pidal s/n, 14004 Cordoba, Spain
- Immunology and Allergy Service, Reina Sofia University Hospital of Cordoba, Av. Menendez Pidal s/n, 14004 Cordoba, Spain
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Ligotti ME, Accardi G, Aiello A, Aprile S, Calabrò A, Caldarella R, Caruso C, Ciaccio M, Corsale AM, Dieli F, Di Simone M, Giammanco GM, Mascarella C, Akbar AN, Meraviglia S, Candore G. Sicilian semi- and supercentenarians: identification of age-related T-cell immunophenotype to define longevity trait. Clin Exp Immunol 2023; 214:61-78. [PMID: 37395602 PMCID: PMC10711357 DOI: 10.1093/cei/uxad074] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/12/2023] [Accepted: 06/30/2023] [Indexed: 07/04/2023] Open
Abstract
The immunophenotype of oldest centenarians, i.e. semi- and supercentenarians, could provide important information about their ability to adapt to factors associated with immune changes, including ageing per se and chronic Cytomegalovirus infection. We investigated, by flow cytometry, variations in percentages and absolute numbers of immune cell subsets, focusing on T cells, and pro-inflammatory parameters in a cohort of 28 women and 26 men (age range 19-110 years). We observed variability in hallmarks of immunosenescence related to age and Cytomegalovirus serological status. The eight oldest centenarians showed the lowest percentages of naïve T cells, due to their age, and the highest percentages of T-effector memory cells re-expressing CD45RA (TEMRA), according to their cytomegalovirus status, and high levels of serum pro-inflammatory parameters, although their means were lower than that of remaining 90+ donors. Some of them showed CD8 naïve and TEMRA percentages, and exhaustion/pro-inflammatory markers comparable to the younger ones. Our study supports the suggestion that immune ageing, especially of oldest centenarians, exhibits great variability that is not only attributable to a single contributor but should also be the full result of a combination of several factors. Everyone ages differently because he/she is unique in genetics and experience of life and this applies even more to the immune system; everybody has had a different immunological history. Furthermore, our findings on inflammatory markers, TEMRA and CMV seropositivity in centenarians, discussed in the light of the most recent literature, suggest that these changes might be not unfavourable for centenarians, and in particular for the oldest ones.
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Affiliation(s)
- Mattia Emanuela Ligotti
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Giulia Accardi
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Anna Aiello
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Stefano Aprile
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
- Unit of Transfusion Medicine, San Giovanni di Dio Hospital, Agrigento, Italy
| | - Anna Calabrò
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Rosalia Caldarella
- Department of Laboratory Medicine, University Hospital "P. Giaccone", Palermo, Italy
| | - Calogero Caruso
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Marcello Ciaccio
- Department of Laboratory Medicine, University Hospital "P. Giaccone", Palermo, Italy
- Section of Clinical Biochemistry, Clinical Molecular Medicine and Clinical Laboratory Medicine Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Anna Maria Corsale
- Central Laboratory of Advanced Diagnosis and Biomedical Research, University Hospital "P. Giaccone", Palermo, Italy
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Francesco Dieli
- Central Laboratory of Advanced Diagnosis and Biomedical Research, University Hospital "P. Giaccone", Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Marta Di Simone
- Central Laboratory of Advanced Diagnosis and Biomedical Research, University Hospital "P. Giaccone", Palermo, Italy
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Giovanni Maurizio Giammanco
- Section of Microbiology, Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Chiara Mascarella
- Section of Microbiology, Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Arne N Akbar
- Division of Medicine, Experimental and Therapeutic Medicine, University College London, London, UK
| | - Serena Meraviglia
- Central Laboratory of Advanced Diagnosis and Biomedical Research, University Hospital "P. Giaccone", Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Giuseppina Candore
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
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Álvarez-Heredia P, Reina-Alfonso I, Domínguez-del-Castillo JJ, Gutiérrez-González C, Hassouneh F, Batista-Duharte A, Pérez AB, Tarazona R, Solana R, Pera A. Accelerated T-Cell Immunosenescence in Cytomegalovirus-Seropositive Individuals After Severe Acute Respiratory Syndrome Coronavirus 2 Infection. J Infect Dis 2023; 228:576-585. [PMID: 37103009 PMCID: PMC10469128 DOI: 10.1093/infdis/jiad119] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/17/2023] [Accepted: 04/25/2023] [Indexed: 04/28/2023] Open
Abstract
Cytomegalovirus (CMV) infection is a major driver of accelerated immunosenescence related to CD28null T cell expansion. CMV infection and these proatherogenic T cells have been independently associated with cardiovascular disease and coronavirus disease 2019 (COVID-19) severity. We investigated the potential contribution of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to immunosenescence and its relationship with CMV. Innate and adaptive immune subpopulations from individuals with mild or asymptomatic SARS-CoV-2 infection (mCOVID-19) and healthy donors were immunophenotyped. A significant increase in CD28nullCD57+CX3CR1+ T cell percentages (CD4+ [P ≤ .01], CD8+ [P ≤ .01], and TcRγδ (CD4-CD8-) [P ≤ .001]) was found in unnvaccinated CMV-seropositive mCOVID-19 individuals stable up to 12 months after infection. This expansion did not occur in CMV-seronegative mCOVID-19 individuals or in CMV-seropositive individuals infected after SARS-CoV-2 vaccination. There were no significant differences between mCOVID-19 and aortic stenosis groups. Thus, individuals coinfected with SARS-CoV-2 and CMV have accelerated T cell senescence, which might lead to an increased risk of cardiovascular disease.
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Affiliation(s)
- Pablo Álvarez-Heredia
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Córdoba, Spain
| | - Irene Reina-Alfonso
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Córdoba, Spain
| | - Jose Joaquín Domínguez-del-Castillo
- Cardiovascular Pathology (GA09), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Córdoba, Spain
| | - Carmen Gutiérrez-González
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Córdoba, Spain
| | - Fakhri Hassouneh
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Córdoba, Spain
| | - Alexander Batista-Duharte
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Córdoba, Spain
| | - Ana-Belén Pérez
- Microbiology Service, Reina Sofia University Hospital of Cordoba/Maimonides Biomedical Research Institute (IMIBIC)/CIBERINFEC, Córdoba, Spain
| | - Raquel Tarazona
- Department of Physiology, Immunology Unit, University of Extremadura, Cáceres, Spain
| | - Rafael Solana
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Córdoba, Spain
| | - Alejandra Pera
- Immunology and Allergy Group (GC01), Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/University of Cordoba/Reina Sofia University Hospital, Córdoba, Spain
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Hieber C, Grabbe S, Bros M. Counteracting Immunosenescence-Which Therapeutic Strategies Are Promising? Biomolecules 2023; 13:1085. [PMID: 37509121 PMCID: PMC10377144 DOI: 10.3390/biom13071085] [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: 05/02/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
Aging attenuates the overall responsiveness of the immune system to eradicate pathogens. The increased production of pro-inflammatory cytokines by innate immune cells under basal conditions, termed inflammaging, contributes to impaired innate immune responsiveness towards pathogen-mediated stimulation and limits antigen-presenting activity. Adaptive immune responses are attenuated as well due to lowered numbers of naïve lymphocytes and their impaired responsiveness towards antigen-specific stimulation. Additionally, the numbers of immunoregulatory cell types, comprising regulatory T cells and myeloid-derived suppressor cells, that inhibit the activity of innate and adaptive immune cells are elevated. This review aims to summarize our knowledge on the cellular and molecular causes of immunosenescence while also taking into account senescence effects that constitute immune evasion mechanisms in the case of chronic viral infections and cancer. For tumor therapy numerous nanoformulated drugs have been developed to overcome poor solubility of compounds and to enable cell-directed delivery in order to restore immune functions, e.g., by addressing dysregulated signaling pathways. Further, nanovaccines which efficiently address antigen-presenting cells to mount sustained anti-tumor immune responses have been clinically evaluated. Further, senolytics that selectively deplete senescent cells are being tested in a number of clinical trials. Here we discuss the potential use of such drugs to improve anti-aging therapy.
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Affiliation(s)
- Christoph Hieber
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Institute of Molecular Biology (IMB), Ackermannweg 4, 55128 Mainz, Germany
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Institute of Molecular Biology (IMB), Ackermannweg 4, 55128 Mainz, Germany
| | - Matthias Bros
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
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Kaszubowska L, Foerster J, Kaczor JJ, Karnia MJ, Kmieć Z. Anti-Inflammatory Klotho Protein Serum Concentration Correlates with Interferon Gamma Expression Related to the Cellular Activity of Both NKT-like and T Cells in the Process of Human Aging. Int J Mol Sci 2023; 24:ijms24098393. [PMID: 37176100 PMCID: PMC10179552 DOI: 10.3390/ijms24098393] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/30/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Klotho is a beta-glucuronidase that reveals both anti-inflammatory and anti-oxidative properties that have been associated with mechanisms of aging. The study aimed to analyze the relationships between the serum concentration of soluble α-Klotho and cellular activity of two populations of lymphocytes; T and NKT-like cells corresponding to the level of cytokine secretion; i.e., IFN-γ, TNF-α, and IL-6. The studied population comprised three age groups: young individuals ('young'), seniors aged under 85 ('old'), and seniors aged over 85 ('oldest'). Both NKT-like and T cells were either non-cultured or cultured for 48 h and stimulated appropriately with IL-2, LPS or PMA with ionomycin to compare with unstimulated control cells. In all studied age groups non-cultured or cultured NKT-like cells revealed higher expressions of TNF-α, IL-6, and IFN-γ than T cells. α-Klotho concentration in serum decreased significantly in the process of aging. Intriguingly, only IFN-γ expression revealed a positive correlation with α-Klotho protein serum concentration in both non-cultured and cultured T and NKT-like cells. Since IFN-γ is engaged in the maintenance of immune homeostasis, the observed relationships may indicate the involvement of α-Klotho and cellular IFN-γ expression in the network of adaptive mechanisms developed during the process of human aging.
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Affiliation(s)
- Lucyna Kaszubowska
- Department of Histology, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland
| | - Jerzy Foerster
- Department of Social and Clinical Gerontology, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland
| | - Jan Jacek Kaczor
- Department of Animal and Human Physiology, University of Gdańsk, J. Bażyńskiego 8 Street, 80-308 Gdańsk, Poland
| | - Mateusz Jakub Karnia
- Department of Animal and Human Physiology, University of Gdańsk, J. Bażyńskiego 8 Street, 80-308 Gdańsk, Poland
| | - Zbigniew Kmieć
- Department of Histology, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland
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8
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Namazi Bayegi S, Ali Hamidieh A, Behfar M, Saghazadeh A, Bozorgmehr M, Tajik N, Delbandi AA, Delavari S, Shekarabi M, Rezaei N. Unbalanced T-cell subsets in pediatric patients with beta-thalassemia. Hum Immunol 2023; 84:224-234. [PMID: 36604193 DOI: 10.1016/j.humimm.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Beta-thalassemia major is an autosomal recessive disorder in hemoglobin synthesis. Ineffective erythropoiesis is the main characteristic of the disease, which results in anemia following the extensive destruction of red blood cells. Chronic antigenic stimulation following frequent blood transfusions lead to immune abnormalities, especially regarding T cells, which is one of the reasons for the high susceptibility to infection in beta-thalassemia. METHODS Six pediatric patients and six age- and sex-matched healthy children were selected. Immunophenotyping of functional T-cells was performed using flow cytometry with staining for surface and intracellular markers. The proliferative response of T lymphocytes was also investigated after labeling with CFSE and following stimulation with anti-CD3 and anti-CD28. RESULTS Examination of T lymphocyte subpopulations showed a significant increase in regulatory T cells (Tregs) in beta-thalassemia patients. Hence, the Treg:Tcons (conventional T cells) and Treg:CD8 ratios were significantly increased. In addition, a significant increase in CD8 T cell proliferation activity was observed. Multivariate analysis showed a significant association of central memory cells with serum ferritin levels and the duration of transfusion. In particular, patients with cytomegalovirus (CMV) infection exhibited a significant increase in CD4 central memory cells. CONCLUSION Patients with beta-thalassemia have functionally distinct CD4 and CD8 T cell subsets imbalances, and this may contribute to their high susceptibility to infections and immune dysregulation.
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Affiliation(s)
- Shideh Namazi Bayegi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Pediatric Cell and Gene Therapy Research Center, Gene, Cell and Tissue Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Ali Hamidieh
- Pediatric Cell and Gene Therapy Research Center, Gene, Cell and Tissue Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Behfar
- Pediatric Cell and Gene Therapy Research Center, Gene, Cell and Tissue Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Amene Saghazadeh
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Systematic Review and Meta-analysis Expert Group (SRMEG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Mahmood Bozorgmehr
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Nader Tajik
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Ali-Akbar Delbandi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Samaneh Delavari
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Primary Immunodeficiency Diseases Network (PIDNet), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Mehdi Shekarabi
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy, and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
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9
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Lu Y, Ruan Y, Hong P, Rui K, Liu Q, Wang S, Cui D. T-cell senescence: A crucial player in autoimmune diseases. Clin Immunol 2023; 248:109202. [PMID: 36470338 DOI: 10.1016/j.clim.2022.109202] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/24/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
Senescent T cells are proliferative disabled lymphocytes that lack antigen-specific responses. The development of T-cell senescence in autoimmune diseases contributes to immunological disorders and disease progression. Senescent T cells lack costimulatory markers with the reduction of T cell receptor repertoire and the uptake of natural killer cell receptors. Senescent T cells exert cytotoxic effects through the expression of perforin, granzymes, tumor necrosis factor, and other molecules without the antigen-presenting process. DNA damage accumulation, telomere damage, and limited DNA repair capacity are important features of senescent T cells. Impaired mitochondrial function and accumulation of reactive oxygen species contribute to T cell senescence. Alleviation of T-cell senescence could provide potential targets for the treatment of autoimmune diseases.
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Affiliation(s)
- Yinyun Lu
- Department of Infectious Diseases, Shaoxing People's Hospital, Shaoxing, China
| | - Yongchun Ruan
- Department of Infectious Diseases, Shaoxing People's Hospital, Shaoxing, China
| | - Pan Hong
- Department of Hematology, Shaoxing People's Hospital, Shaoxing, China
| | - Ke Rui
- Department of Transfusion, Shaoxing People's Hospital, Shaoxing, China
| | - Qi Liu
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China.
| | - Shengjun Wang
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China; Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.
| | - Dawei Cui
- The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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10
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Takahara T, Nakamura S, Tsuzuki T, Satou A. The Immunology of DLBCL. Cancers (Basel) 2023; 15:cancers15030835. [PMID: 36765793 PMCID: PMC9913124 DOI: 10.3390/cancers15030835] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Diffuse large B-cell lymphoma (DLBCL) is an aggressive malignancy and is the most common type of malignant lymphoid neoplasm. While some DLBCLs exhibit strong cell-autonomous survival and proliferation activity, others depend on interactions with non-malignant cells for their survival and proliferation. Recent next-generation sequencing studies have linked these interactions with the molecular classification of DLBCL. For example, germinal center B-cell-like DLBCL tends to show strong associations with follicular T cells and epigenetic regulation of immune recognition molecules, whereas activated B-cell-like DLBCL shows frequent genetic aberrations affecting the class I major histocompatibility complex. Single-cell technologies have also provided detailed information about cell-cell interactions and the cell composition of the microenvironment of DLBCL. Aging-related immunological deterioration, i.e., immunosenescence, also plays an important role in DLBCL pathogenesis, especially in Epstein-Barr virus-positive DLBCL. Moreover, DLBCL in "immune-privileged sites"-where multiple immune-modulating mechanisms exist-shows unique biological features, including frequent down-regulation of immune recognition molecules and an immune-tolerogenic tumor microenvironment. These advances in understanding the immunology of DLBCL may contribute to the development of novel therapies targeting immune systems.
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Affiliation(s)
- Taishi Takahara
- Department of Surgical Pathology, Aichi Medical University Hospital, Nagakute 480-1195, Japan
- Correspondence:
| | - Shigeo Nakamura
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya 466-8550, Japan
| | - Toyonori Tsuzuki
- Department of Surgical Pathology, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Akira Satou
- Department of Surgical Pathology, Aichi Medical University Hospital, Nagakute 480-1195, Japan
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11
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Moseley P, Klenerman P, Kadambari S. Indirect effects of cytomegalovirus infection: Implications for vaccine development. Rev Med Virol 2023; 33:e2405. [PMID: 36378563 PMCID: PMC10078107 DOI: 10.1002/rmv.2405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 10/12/2022] [Accepted: 10/27/2022] [Indexed: 11/17/2022]
Abstract
Development of a cytomegalovirus (CMV) vaccine is a high priority due to its significant global impact-contributing to mortality in immunosuppressed individuals, neurodevelopmental delay in infected neonates and non-genetic sensorineural hearing loss. The impact of CMV on the general population has been less well studied; however, a wide range of evidence indicates that CMV may increase the risk of atherosclerosis, cancer, immunosenescence, and progression of tuberculosis (TB) and human immunodeficiency virus. Due to the high seroprevalence of CMV worldwide, any modulation of risk by CMV is likely to have a significant impact on the epidemiology of these diseases. This review will evaluate how CMV may cause morbidity and mortality outside of the neonatal and immunosuppressed populations and consider the potential impact of a CMV vaccine on these outcomes.
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Affiliation(s)
- Philip Moseley
- Department of Paediatrics, Horton General Hospital, Oxford University Hospitals, Banbury, UK
| | - Paul Klenerman
- Translational Gastroenterology Unit, University of Oxford, Oxford, UK.,Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Seilesh Kadambari
- Department of Paediatrics, Oxford Vaccine Group, University of Oxford, Oxford, UK.,NIHR Oxford Biomedical Research Centre, Oxford, UK.,Department of Paediatric Infectious Diseases, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.,Great Ormond Street Institute of Child Health, University College London, London, UK
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12
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Lu J, Chen G, Sorokina A, Nguyen T, Wallace T, Nguyen C, Dunn C, Wang S, Ellis S, Shi G, McKelvey J, Sharov A, Liu YT, Schneck J, Weng NP. Cytomegalovirus infection reduced CD70 expression, signaling and expansion of viral specific memory CD8+ T cells in healthy human adults. IMMUNITY & AGEING 2022; 19:54. [DOI: 10.1186/s12979-022-00307-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/10/2022] [Indexed: 11/13/2022]
Abstract
Abstract
Background
Cytomegalovirus (CMV) infection leads to effector memory CD8+ T cell expansion and is associated with immune dysfunction in older adults. However, the molecular alterations of CMV-specific CD8+ T cells in CMV infected healthy young and middle-aged adults has not been fully characterized.
Results
We compared CD8+ T cells specific for a CMV epitope (pp65495-503, NLV) and an influenza A virus (IAV) epitope (M158-66, GIL) from the same young and middle-aged healthy adults with serum positive for anti-CMV IgG. Compared to the IAV-specific CD8+ T cells, CMV-specific CD8+ T cells contained more differentiated effector memory (TEM and TEMRA) cells. Isolated CMV-specific central memory (TCM) but not naïve (TN) cells had a significant reduced activation-induced expansion in vitro compared to their IAV-specific counterparts. Furthermore, we found that CD70 expression was reduced in CMV-specific CD28+CD8+ TCM and that CD70+ TCM had better expansion in vitro than did CD70- TCM. Mechanistically, we showed that CD70 directly enhanced MAPK phosphorylation and CMV-specific CD8+ TCM cells had a reduced MAPK signaling upon activation. Lastly, we showed that age did not exacerbate reduced CD70 expression in CMV- specific CD8+ TCM cells.
Conclusion
Our findings showed that CMV infection causes mild expansion of CMV-NLV-specific CD8+ T cells, reduced CD70 expression and signaling, and proliferation of CMV-NLV-specific CD8+ TCM cells in young and middle-aged healthy adults and revealed an age-independent and CMV infection-specific impact on CD8+ memory T cells.
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13
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Caruso C, Ligotti ME, Accardi G, Aiello A, Candore G. An immunologist's guide to immunosenescence and its treatment. Expert Rev Clin Immunol 2022; 18:961-981. [PMID: 35876758 DOI: 10.1080/1744666x.2022.2106217] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION : The ageing process causes several changes in the immune system, although immune ageing is strongly influenced by individual immunological history, as well as genetic and environmental factors leading to inter-individual variability. AREAS COVERED : Here, we focused on the biological and clinical meaning of immunosenescence. Data on SARS-CoV-2 and Yellow Fever vaccine have demonstrated the clinical relevance of immunosenescence, while inconsistent results, obtained from longitudinal studies aimed at looking for immune risk phenotypes, have revealed that the immunosenescence process is highly context-dependent. Large projects have allowed the delineation of the drivers of immune system variance, including genetic and environmental factors, sex, smoking, and co-habitation. Therefore, it is difficult to identify the interventions that can be envisaged to maintain or improve immune function in older people. That suggests that drug treatment of immunosenescence should require personalized intervention. Regarding this, we discussed the role of changes in lifestyle as a potential therapeutic approach. EXPERT OPINION : Our review points out that age is only part of the problem of immunosenescence. Everyone ages differently because he/she is unique in genetics and experience of life and this applies even more to the immune system (immunobiography). Finally, the present review shows how appreciable results in the modification of immunosenescence biomarkers can be achieved with lifestyle modification.
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Affiliation(s)
- Calogero Caruso
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Mattia Emanuela Ligotti
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Giulia Accardi
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Anna Aiello
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Giuseppina Candore
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
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14
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Salminen A. Clinical perspectives on the age-related increase of immunosuppressive activity. J Mol Med (Berl) 2022; 100:697-712. [PMID: 35384505 PMCID: PMC8985067 DOI: 10.1007/s00109-022-02193-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/10/2022] [Accepted: 03/28/2022] [Indexed: 11/10/2022]
Abstract
The aging process is associated with a remodeling of the immune system involving chronic low-grade inflammation and a gradual decline in the function of the immune system. These processes are also called inflammaging and immunosenescence. The age-related immune remodeling is associated with many clinical changes, e.g., risk for cancers and chronic infections increases, whereas the efficiency of vaccination and immunotherapy declines with aging. On the other hand, there is convincing evidence that chronic inflammatory states promote the premature aging process. The inflammation associated with aging or chronic inflammatory conditions stimulates a counteracting immunosuppression which protects tissues from excessive inflammatory injuries but promotes immunosenescence. Immunosuppression is a driving force in tumors and chronic infections and it also induces the tolerance to vaccination and immunotherapies. Immunosuppressive cells, e.g., myeloid-derived suppressor cells (MDSC), regulatory T cells (Treg), and type M2 macrophages, have a crucial role in tumorigenesis and chronic infections as well as in the tolerance to vaccination and immunotherapies. Interestingly, there is substantial evidence that inflammaging is also associated with an increased immunosuppressive activity, e.g., upregulation of immunosuppressive cells and anti-inflammatory cytokines. Given that both the aging and chronic inflammatory states involve the activation of immunosuppression and immunosenescence, this might explain why aging is a risk factor for tumorigenesis and chronic inflammatory states and conversely, chronic inflammatory insults promote the premature aging process in humans.
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Affiliation(s)
- Antero Salminen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland.
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15
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CD8 + T Cell Senescence: Lights and Shadows in Viral Infections, Autoimmune Disorders and Cancer. Int J Mol Sci 2022; 23:ijms23063374. [PMID: 35328795 PMCID: PMC8955595 DOI: 10.3390/ijms23063374] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/14/2022] [Accepted: 03/18/2022] [Indexed: 12/15/2022] Open
Abstract
CD8+ T lymphocytes are a heterogeneous class of cells that play a crucial role in the adaptive immune response against pathogens and cancer. During their lifetime, they acquire cytotoxic functions to ensure the clearance of infected or transformed cells and, in addition, they turn into memory lymphocytes, thus providing a long-term protection. During ageing, the thymic involution causes a reduction of circulating T cells and an enrichment of memory cells, partially explaining the lowering of the response towards novel antigens with implications in vaccine efficacy. Moreover, the persistent stimulation by several antigens throughout life favors the switching of CD8+ T cells towards a senescent phenotype contributing to a low-grade inflammation that is a major component of several ageing-related diseases. In genetically predisposed young people, an immunological stress caused by viral infections (e.g., HIV, CMV, SARS-CoV-2), autoimmune disorders or tumor microenvironment (TME) could mimic the ageing status with the consequent acceleration of T cell senescence. This, in turn, exacerbates the inflamed conditions with dramatic effects on the clinical progression of the disease. A better characterization of the phenotype as well as the functions of senescent CD8+ T cells can be pivotal to prevent age-related diseases, to improve vaccine strategies and, possibly, immunotherapies in autoimmune diseases and cancer.
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16
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Bai G, Cui N, Wang H, Cheng W, Han W, Chen J, Guo Y, Wang F. T-lymphocyte subtyping: an early warning and a potential prognostic indicator of active cytomegalovirus infection in patients with sepsis. Immunol Cell Biol 2022; 100:777-790. [PMID: 36106958 PMCID: PMC9828035 DOI: 10.1111/imcb.12586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 09/09/2022] [Accepted: 09/14/2022] [Indexed: 01/12/2023]
Abstract
Cytomegalovirus (CMV) infection is very common in patients suffering from sepsis and may cause poor prognosis. To explore the relationship between immune status of patients with sepsis and CMV infection, we assessed T lymphocyte subtyping and other commonly used clinical parameters in patients with sepsis upon admission to the intensive care unit (ICU) and evaluated their potential impact on diagnosis and outcomes of active CMV infection. In our study, 82 of 599 patients with sepsis were diagnosed with active CMV infection. The 28-day mortality was higher in active CMV-infected than nonactive CMV-infected patients (20.7% versus 9.9%); 51of 82 active CMV-infected patients with sepsis were assessed to have CMV-DNA-negative conversion, while 31 were persistently positive for CMV DNA. Higher CD8+ CD28+ T-cell counts at presentation were associated with CMV-DNA-negative conversion and lower 28-day mortality. The CMV-DNA-negative conversion and 28-day mortality of active CMV-infected patients with sepsis could be predicted using cutoff values of 151 (74.5% sensitivity and 87.1% specificity) and 64.5 (52.9% sensitivity and 92.3% specificity) CD8+ CD28+ T cells mL-1 at ICU admission, respectively. Higher CD8+ CD28+ T-cell count was significantly associated with active CMV infection, higher CMV-DNA-negative conversion and lower 28-day mortality, which may be a potential marker for early warning of active CMV infection and outcome prediction.
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Affiliation(s)
- Guangxu Bai
- Department of State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina,Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
| | - Na Cui
- Department of State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina,Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina,Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical CollegeChinese Academy of Medical ScienceBeijingChina
| | - Hao Wang
- Department of Critical Care MedicineBeijing Jishuitan HospitalBeijingChina
| | - Wei Cheng
- Department of State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina,Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
| | - Wen Han
- Department of State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina,Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
| | - Jianwei Chen
- Department of State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina,Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
| | - Ye Guo
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical CollegeChinese Academy of Medical ScienceBeijingChina
| | - Fei Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical CollegeChinese Academy of Medical ScienceBeijingChina
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17
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Reduced Immunosenescence of Peripheral Blood T Cells in Parkinson's Disease with CMV Infection Background. Int J Mol Sci 2021; 22:ijms222313119. [PMID: 34884936 PMCID: PMC8658620 DOI: 10.3390/ijms222313119] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/25/2021] [Accepted: 12/01/2021] [Indexed: 01/11/2023] Open
Abstract
Immunosenescence is a process of remodeling the immune system under the influence of chronic inflammation during aging. Parkinson’s disease (PD) is a common age-associated neurodegenerative disorder and is frequently accompanied by neuroinflammation. On the other hand, cytomegalovirus (CMV), one of the most spread infections in humans, may induce chronic inflammation which contributes to immunosenescence, differentiation and the inflation of T cells and NK cells. Currently, there is no clear understanding of immunosenescence severity in PD patients infected with CMV. In this study, we analyzed differentiation stages and immunosenescence characteristics of T cells and NK cells in 31 patients with mild and moderate PD severity, 33 age-matched and 30 young healthy donors. The PD patients were 100% CMV-seropositive compared to 76% age-matched and 73% young CMV-infected healthy donors. The proportion of effector memory T cells re-expressing CD45RA, CD57+CD56− T cells and CD57+CD56+ T cells was significantly reduced in PD patients compared with CMV-seropositive age-matched healthy individuals. The CD57+CD56− T cell proportion in PD patients was similar to that of CMV-seropositive young healthy donors. Thus, PD is characterized by reduced peripheral blood T cell immunosenescence, even against the background of CMV infection.
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