1
|
Bracken OV, De Maeyer RPH, Akbar AN. Enhancing immunity during ageing by targeting interactions within the tissue environment. Nat Rev Drug Discov 2025; 24:300-315. [PMID: 39875569 DOI: 10.1038/s41573-024-01126-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2024] [Indexed: 01/30/2025]
Abstract
Immunity declines with age. This results in a higher risk of age-related diseases, diminished ability to respond to new infections and reduced response to vaccines. The causes of this immune dysfunction are cellular senescence, which occurs in both lymphoid and non-lymphoid tissue, and chronic, low-grade inflammation known as 'inflammageing'. In this Review article, we highlight how the processes of inflammation and senescence drive each other, leading to loss of immune function. To break this cycle, therapies are needed that target the interactions between the altered tissue environment and the immune system instead of targeting each component alone. We discuss the relative merits and drawbacks of therapies that are directed at eliminating senescent cells (senolytics) and those that inhibit inflammation (senomorphics) in the context of tissue niches. Furthermore, we discuss therapeutic strategies designed to directly boost immune cell function and improve immune surveillance in tissues.
Collapse
Affiliation(s)
| | - Roel P H De Maeyer
- Division of Medicine, University College London, London, UK
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Arne N Akbar
- Division of Medicine, University College London, London, UK.
| |
Collapse
|
2
|
Cao Y, Du X, Yu J, Wang Y, Jin X, Gu B, Yin Q. Seno-antigen-pulsed dendritic cell vaccine induce anti-aging immunity to improve adipose tissue senescence and metabolic abnormalities. Biomed Pharmacother 2024; 179:117433. [PMID: 39260327 DOI: 10.1016/j.biopha.2024.117433] [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: 05/21/2024] [Revised: 09/04/2024] [Accepted: 09/06/2024] [Indexed: 09/13/2024] Open
Abstract
Anti-aging immunity induced by vaccines was recently reported to enable the elimination of senescent cells. However, the initial immune response to vaccination declines with age, and there is evidence that elderly dendritic cells (DCs) have a reduced capacity to stimulate T cells. Identification of alternative anti-aging vaccine is therefore warranted. Here, we developed a DC vaccine that delivers a cationic protein (CP) fused with the seno-antigen peptides Gpnmb (Gpnmb-CP) into DCs. The Gpnmb-CP-pulsed DC vaccine (Gpnmb-CP-DC) efficiently presented antigens and activated CD8+ T cells, leading to enhanced immune cytotoxicity and memory responses in CD8+ T cells. Thus, the targeted anti-aging immunity triggered by Gpnmb-CP-DC has the ability to selectively eliminate senescent adipocytes and effectively improve age-related metabolic abnormalities in both high-fat diet (HFD)-induced young and aged mice models, as well as in natural aging mouse model. In contrast, the Gpnmb-CP protein vaccine exhibits minimal efficacy in aged mice model. Furthermore, we observed a decreased phagocytic capacity for antigens in aging DCs, accompanied by an upregulation of the immune checkpoint PDL1 expression and a noticeable decline in activated CD8+ T cell. Hence, Gpnmb-CP-DC emerges as a promising vaccine candidate, demonstrating the capacity to induce potent anti-aging immunity, mitigating adipose tissue senescence and metabolic abnormalities, while resilient to the senescent environment of the organism.
Collapse
Affiliation(s)
- Yin Cao
- Department of Andrology, The First Hospital of Jilin University, Changchun, China
| | - Xiaoxue Du
- Departments of Laboratory Medicine, Lequn Branch, The First Hospital of Jilin University, Changchun, China
| | - Jiahong Yu
- Departments of Laboratory Medicine, Lequn Branch, The First Hospital of Jilin University, Changchun, China
| | - Ying Wang
- Academy of Health Management, Changchun University of Chinese Medicine, Changchun, China
| | - Xinliang Jin
- Department of General Surgery, First Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Baijian Gu
- Department of Anorectal, First Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Qiliang Yin
- Department of Cadre Ward, The First Hospital of Jilin University, Changchun, China.
| |
Collapse
|
3
|
Dallan B, Proietto D, De Laurentis M, Gallerani E, Martino M, Ghisellini S, Zurlo A, Volpato S, Govoni B, Borghesi M, Albanese V, Appay V, Bonnini S, Llewellyn-Lacey S, Pacifico S, Grumiro L, Brandolini M, Semprini S, Sambri V, Ladell K, Parry HM, Moss PAH, Price DA, Caputo A, Gavioli R, Nicoli F. Age differentially impacts adaptive immune responses induced by adenoviral versus mRNA vaccines against COVID-19. NATURE AGING 2024; 4:1121-1136. [PMID: 38918602 DOI: 10.1038/s43587-024-00644-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 05/02/2024] [Indexed: 06/27/2024]
Abstract
Adenoviral and mRNA vaccines encoding the viral spike (S) protein have been deployed globally to contain severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Older individuals are particularly vulnerable to severe infection, probably reflecting age-related changes in the immune system, which can also compromise vaccine efficacy. It is nonetheless unclear to what extent different vaccine platforms are impacted by immunosenescence. Here, we evaluated S protein-specific immune responses elicited by vaccination with two doses of BNT162b2 or ChAdOx1-S and subsequently boosted with a single dose of BNT162b2 or mRNA-1273, comparing age-stratified participants with no evidence of previous infection with SARS-CoV-2. We found that aging profoundly compromised S protein-specific IgG titers and further limited S protein-specific CD4+ and CD8+ T cell immunity as a probable function of progressive erosion of the naive lymphocyte pool in individuals vaccinated initially with BNT162b2. Our results demonstrate that primary vaccination with ChAdOx1-S and subsequent boosting with BNT162b2 or mRNA-1273 promotes sustained immunological memory in older adults and potentially confers optimal protection against coronavirus disease 2019.
Collapse
Affiliation(s)
- Beatrice Dallan
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Davide Proietto
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Martina De Laurentis
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Eleonora Gallerani
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Mara Martino
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Sara Ghisellini
- Laboratory of Clinical Pathology, University Hospital St. Anna, Ferrara, Italy
| | - Amedeo Zurlo
- Department of Medical Sciences, University of Ferrara, Geriatrics Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Stefano Volpato
- Department of Medical Sciences, University of Ferrara, Geriatrics Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Benedetta Govoni
- Department of Medical Sciences, University of Ferrara, Geriatrics Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Michela Borghesi
- Department of Economics and Management, University of Ferrara, Ferrara, Italy
| | - Valentina Albanese
- Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy
| | - Victor Appay
- Université de Bordeaux, CNRS UMR 5164, INSERM ERL 1303, ImmunoConcEpT, Bordeaux, France
| | - Stefano Bonnini
- Department of Economics and Management, University of Ferrara, Ferrara, Italy
| | - Sian Llewellyn-Lacey
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK
| | - Salvatore Pacifico
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Laura Grumiro
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Martina Brandolini
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Simona Semprini
- Unit of Microbiology, Greater Romagna Area Hub Laboratory, Cesena, Italy
| | - Vittorio Sambri
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
- Unit of Microbiology, Greater Romagna Area Hub Laboratory, Cesena, Italy
| | - Kristin Ladell
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK
| | - Helen M Parry
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Paul A H Moss
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - David A Price
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK
- Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, UK
| | - Antonella Caputo
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Riccardo Gavioli
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Francesco Nicoli
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy.
| |
Collapse
|
4
|
Huang M, Wang Y, Fang L, Liu C, Feng F, Liu L, Sun C. T cell senescence: a new perspective on immunotherapy in lung cancer. Front Immunol 2024; 15:1338680. [PMID: 38415245 PMCID: PMC10896971 DOI: 10.3389/fimmu.2024.1338680] [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: 11/15/2023] [Accepted: 01/30/2024] [Indexed: 02/29/2024] Open
Abstract
T cell senescence is an indication of T cell dysfunction. The ability of senescent T cells to respond to cognate antigens is reduced and they are in the late stage of differentiation and proliferation; therefore, they cannot recognize and eliminate tumor cells in a timely and effective manner, leading to the formation of the suppressive tumor microenvironment. Establishing methods to reverse T cell senescence is particularly important for immunotherapy. Aging exacerbates profound changes in the immune system, leading to increased susceptibility to chronic, infectious, and autoimmune diseases. Patients with malignant lung tumors have impaired immune function with a high risk of recurrence, metastasis, and mortality. Immunotherapy based on PD-1, PD-L1, CTLA-4, and other immune checkpoints is promising for treating lung malignancies. However, T cell senescence can lead to low efficacy or unsuccessful treatment results in some immunotherapies. Efficiently blocking and reversing T cell senescence is a key goal of the enhancement of tumor immunotherapy. This study discusses the characteristics, mechanism, and expression of T cell senescence in malignant lung tumors and the treatment strategies.
Collapse
Affiliation(s)
- Mengge Huang
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuetong Wang
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Liguang Fang
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Cun Liu
- College of Traditional Chinese Medicine, Weifang Medical University, Weifang, China
| | - Fubin Feng
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, China
| | - Lijuan Liu
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, China
| | - Changgang Sun
- College of Traditional Chinese Medicine, Weifang Medical University, Weifang, China
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, China
| |
Collapse
|
5
|
Soto-Heredero G, Gómez de Las Heras MM, Escrig-Larena JI, Mittelbrunn M. Extremely Differentiated T Cell Subsets Contribute to Tissue Deterioration During Aging. Annu Rev Immunol 2023; 41:181-205. [PMID: 37126417 DOI: 10.1146/annurev-immunol-101721-064501] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
There is a dramatic remodeling of the T cell compartment during aging. The most notorious changes are the reduction of the naive T cell pool and the accumulation of memory-like T cells. Memory-like T cells in older people acquire a phenotype of terminally differentiated cells, lose the expression of costimulatory molecules, and acquire properties of senescent cells. In this review, we focus on the different subsets of age-associated T cells that accumulate during aging. These subsets include extremely cytotoxic T cells with natural killer properties, exhausted T cells with altered cytokine production, and regulatory T cells that gain proinflammatory features. Importantly, all of these subsets lose their lymph node homing capacity and migrate preferentially to nonlymphoid tissues, where they contribute to tissue deterioration and inflammaging.
Collapse
Affiliation(s)
- Gonzalo Soto-Heredero
- Homeostasis de Tejidos y Órganos, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad Autónoma de Madrid, Madrid, Spain
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain;
- Instituto de Investigación Sanitaria del Hospital 12 de Octubre, Madrid, Spain
| | - Manuel M Gómez de Las Heras
- Homeostasis de Tejidos y Órganos, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad Autónoma de Madrid, Madrid, Spain
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain;
- Instituto de Investigación Sanitaria del Hospital 12 de Octubre, Madrid, Spain
| | - J Ignacio Escrig-Larena
- Homeostasis de Tejidos y Órganos, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad Autónoma de Madrid, Madrid, Spain
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain;
| | - María Mittelbrunn
- Homeostasis de Tejidos y Órganos, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad Autónoma de Madrid, Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital 12 de Octubre, Madrid, Spain
| |
Collapse
|
6
|
Quan XQ, Ruan L, Zhou HR, Gao WL, Zhang Q, Zhang CT. Age-related changes in peripheral T-cell subpopulations in elderly individuals: An observational study. Open Life Sci 2023; 18:20220557. [PMID: 36816803 PMCID: PMC9922058 DOI: 10.1515/biol-2022-0557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 11/23/2022] [Accepted: 01/02/2023] [Indexed: 02/11/2023] Open
Abstract
The age-related decline in T-cell function among elderly individuals remains unclear. We thus investigated the interrelationship between T-cell subsets and age to identify the changes in T-cell phenotypes and develop an age prediction model for the elderly population. A total of 127 individuals aged >60 years were divided into three groups (youngest-old group, 61-70 years, n = 34; middle-old group, 71-80 years, n = 53; and oldest-old group, ≥ 81 years, n = 40). The percentage of CD8+CD28- cells (P = 0.001) was highest in the oldest-old group and then followed by the middle-old group, while the youngest-old group was the lowest. Both females and males demonstrated significant decreases in the absolute counts of CD4+CD45RA+ cells (P = 0.020; P = 0.002) and CD8+CD28+ cells (P = 0.015; P = 0.005) with age. Multivariate linear regression showed that the percentage of CD8+CD28- cells (P < 0.001) was an independent predictor of aging after adjusting for sex, body mass index, hospitalization duration, smoking, drinking, chronic medical illness, and medications at admission. In conclusion, our results suggest that aging in elderly individuals is accompanied by a decrease in the counts of T-cell subpopulations. CD8+CD28- cells may be potential targets for elderly individuals in antiaging-related immunosenescence.
Collapse
Affiliation(s)
- Xiao-Qing Quan
- Department of Geriatrics, Department of General Practice, Shenzhen Longhua District Central Hospital, The Affiliated Central Hospital of Shenzhen Longhua District, Guangdong Medical University, Shenzhen, 518000, China
| | - Lei Ruan
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hai-Rong Zhou
- Department of Geriatrics, Department of General Practice, Shenzhen Longhua District Central Hospital, The Affiliated Central Hospital of Shenzhen Longhua District, Guangdong Medical University, Shenzhen, 518000, China
| | - Wei-Liang Gao
- Department of Geriatrics, Department of General Practice, Shenzhen Longhua District Central Hospital, The Affiliated Central Hospital of Shenzhen Longhua District, Guangdong Medical University, Shenzhen, 518000, China
| | - Qing Zhang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Cun-Tai Zhang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| |
Collapse
|
7
|
Lesteberg KE, Araya P, Waugh KA, Chauhan L, Espinosa JM, Beckham JD. Severely ill and high-risk COVID-19 patients exhibit increased peripheral circulation of CD62L+ and perforin+ T cells. Front Immunol 2023; 14:1113932. [PMID: 36817450 PMCID: PMC9932815 DOI: 10.3389/fimmu.2023.1113932] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/20/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction The emergence of SARS-CoV-2, which causes COVID-19, has led to over 400 million reported cases worldwide. COVID-19 disease ranges from asymptomatic infection to severe disease and may be impacted by individual immune differences. Methods We used multiparameter flow cytometry to compare CD4+ and CD8+ T cell responses in severe (ICU admitted) and non-severe (admitted to observational unit) hospitalized COVID-19 patients. Results We found that patients with severe COVID- 19 had greater frequencies of CD4+ T cells expressing CD62L compared to non-severe patients and greater frequencies of perforin+ CD8+ T cells compared to recovered patients. Furthermore, greater frequencies of CD62L+ CD4+ and CD8+ T cells were seen in severely ill diabetic patients compared to non-severe and non-diabetic patients, and increased CD62L+ CD4+ T cells were also seen in severely ill patients with hypertension. Discussion This is the first report to show that CD62L+ T cells and perforin+ T cells are associated with severe COVID-19 illness and are significantly increased in patients with high-risk pre-existing conditions including older age and diabetes. These data provide a potential biological marker for severe COVID-19.
Collapse
Affiliation(s)
- Kelsey E. Lesteberg
- Department of Medicine, Division of Infectious Diseases, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Paula Araya
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, CO, United States
| | - Katherine A. Waugh
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Lakshmi Chauhan
- Department of Medicine, Division of Infectious Diseases, University of Colorado School of Medicine, Aurora, CO, United States
| | - Joaquin M. Espinosa
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, United States
| | - J. David Beckham
- Department of Medicine, Division of Infectious Diseases, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Medicine, Rocky Mountain VA Medical Center, Aurora, CO, United States
| |
Collapse
|
8
|
Proietto D, Dallan B, Gallerani E, Albanese V, Llewellyn-Lacey S, Price DA, Appay V, Pacifico S, Caputo A, Nicoli F, Gavioli R. Ageing Curtails the Diversity and Functionality of Nascent CD8 + T Cell Responses against SARS-CoV-2. Vaccines (Basel) 2023; 11:vaccines11010154. [PMID: 36679999 PMCID: PMC9867380 DOI: 10.3390/vaccines11010154] [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: 11/30/2022] [Revised: 12/24/2022] [Accepted: 12/28/2022] [Indexed: 01/12/2023] Open
Abstract
Age-related changes in the immune system are thought to underlie the vulnerability of elderly individuals to emerging viral diseases, such as coronavirus disease 2019 (COVID-19). In this study, we used a fully validated in vitro approach to determine how age impacts the generation of de novo CD8+ T cell responses against severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the causative agent of COVID-19. Our data revealed a generalized deficit in the ability of elderly individuals to prime the differentiation of naïve precursors into effector CD8+ T cells defined by the expression of interferon (IFN)-γ and the transcription factor T-bet. As a consequence, there was an age-related decline in the diversity of newly generated CD8+ T cell responses targeting a range of typically immunodominant epitopes derived from SARS-CoV-2, accompanied by an overall reduction in the expression frequency of IFN-γ. These findings have potential implications for the development of new strategies to protect the elderly against COVID-19.
Collapse
Affiliation(s)
- Davide Proietto
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44123 Ferrara, Italy
| | - Beatrice Dallan
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44123 Ferrara, Italy
| | - Eleonora Gallerani
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44123 Ferrara, Italy
| | - Valentina Albanese
- Department of Environment and Prevention Sciences, University of Ferrara, 44123 Ferrara, Italy
| | - Sian Llewellyn-Lacey
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - David A. Price
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
- Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - Victor Appay
- Université de Bordeaux, CNRS UMR 5164, INSERM ERL 1303, ImmunoConcEpT, 33000 Bordeaux, France
| | - Salvatore Pacifico
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44123 Ferrara, Italy
| | - Antonella Caputo
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44123 Ferrara, Italy
| | - Francesco Nicoli
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44123 Ferrara, Italy
- Correspondence:
| | - Riccardo Gavioli
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44123 Ferrara, Italy
| |
Collapse
|
9
|
Provost G, Lavoie FB, Larbi A, Ng TP, Ying CTT, Chua M, Fulop T, Cohen AA. Novel approach to analysis of the immune system using an ungated model of immune surface marker abundance to predict health outcomes. Immun Ageing 2022; 19:35. [PMID: 35927749 PMCID: PMC9351261 DOI: 10.1186/s12979-022-00291-y] [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: 02/27/2022] [Accepted: 07/13/2022] [Indexed: 11/10/2022]
Abstract
AbstractTraditionally, the immune system is understood to be divided into discrete cell types that are identified via surface markers. While some cell type distinctions are no doubt discrete, others may in fact vary on a continum, and even within discrete types, differences in surface marker abundance could have functional implications. Here we propose a new way of looking at immune data, which is by looking directly at the values of the surface markers without dividing the cells into different subtypes. To assess the merit of this approach, we compared it with manual gating using cytometry data from the Singapore Longitudinal Aging Study (SLAS) database. We used two different neural networks (one for each method) to predict the presence of several health conditions. We found that the model built using raw surface marker abundance outperformed the manual gating one and we were able to identify some markers that contributed more to the predictions. This study is intended as a brief proof-of-concept and was not designed to predict health outcomes in an applied setting; nonetheless, it demonstrates that alternative methods to understand the structure of immune variation hold substantial progress.
Collapse
|
10
|
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: 18] [Impact Index Per Article: 6.0] [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.
Collapse
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
| |
Collapse
|
11
|
Fulop T, Larbi A, Pawelec G, Cohen AA, Provost G, Khalil A, Lacombe G, Rodrigues S, Desroches M, Hirokawa K, Franceschi C, Witkowski JM. Immunosenescence and Altered Vaccine Efficiency in Older Subjects: A Myth Difficult to Change. Vaccines (Basel) 2022; 10:vaccines10040607. [PMID: 35455356 PMCID: PMC9030923 DOI: 10.3390/vaccines10040607] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/05/2022] [Accepted: 04/08/2022] [Indexed: 12/14/2022] Open
Abstract
Organismal ageing is associated with many physiological changes, including differences in the immune system of most animals. These differences are often considered to be a key cause of age-associated diseases as well as decreased vaccine responses in humans. The most often cited vaccine failure is seasonal influenza, but, while it is usually the case that the efficiency of this vaccine is lower in older than younger adults, this is not always true, and the reasons for the differential responses are manifold. Undoubtedly, changes in the innate and adaptive immune response with ageing are associated with failure to respond to the influenza vaccine, but the cause is unclear. Moreover, recent advances in vaccine formulations and adjuvants, as well as in our understanding of immune changes with ageing, have contributed to the development of vaccines, such as those against herpes zoster and SARS-CoV-2, that can protect against serious disease in older adults just as well as in younger people. In the present article, we discuss the reasons why it is a myth that vaccines inevitably protect less well in older individuals, and that vaccines represent one of the most powerful means to protect the health and ensure the quality of life of older adults.
Collapse
Affiliation(s)
- Tamas Fulop
- Research Center on Aging, Geriatric Division, Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada; (A.K.); (G.L.)
- Correspondence: (T.F.); (S.R.)
| | - Anis Larbi
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Immunos Building, Singapore 138648, Singapore;
| | - Graham Pawelec
- Department of Immunology, University of Tübingen, 72072 Tübingen, Germany;
- Health Sciences North Research Institute, Sudbury, ON P3E 2H2, Canada
| | - Alan A. Cohen
- Groupe de Recherche PRIMUS, Department of Family Medicine, University of Sherbrooke, 3001 12e Ave N, Sherbrooke, QC J1H 5N4, Canada;
| | | | - Abedelouahed Khalil
- Research Center on Aging, Geriatric Division, Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada; (A.K.); (G.L.)
| | - Guy Lacombe
- Research Center on Aging, Geriatric Division, Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada; (A.K.); (G.L.)
| | - Serafim Rodrigues
- Ikerbasque, The Basque Foundation for Science, 48009 Bilbao, Spain;
- BCAM—The Basque Center for Applied Mathematics, 48009 Bilbao, Spain
- Correspondence: (T.F.); (S.R.)
| | - Mathieu Desroches
- MathNeuro Team, Inria Sophia Antipolis Méditerranée, CEDEX, 06902 Sophia Antipolis, France;
- The Jean Alexandre Dieudonné Laboratory, Université Côte d’Azur, CEDEX 2, 06108 Nice, France
| | - Katsuiku Hirokawa
- Institute of Health and Life Science, Tokyo Medical and Dental University, Tokyo 113-8510, Japan;
| | - Claudio Franceschi
- IRCCS Institute of Neurological Sciences of Bologna, Alma Mater Studiorum University of Bologna, 40126 Bologna, Italy;
- Department of Applied Mathematics and Laboratory of Systems Biology of Healthy Aging, Lobachevsky State University, 603000 Nizhny Novgorod, Russia
| | - Jacek M. Witkowski
- Department of Pathophysiology, Medical University of Gdansk, 80-210 Gdansk, Poland;
| |
Collapse
|