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Koga HK, Grodstein F, Williams DR, Demeo DL, Kubzansky LD. Relations of optimism and purpose in life to immune markers in aging. J Psychosom Res 2024; 184:111851. [PMID: 38964200 DOI: 10.1016/j.jpsychores.2024.111851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 06/13/2024] [Accepted: 06/21/2024] [Indexed: 07/06/2024]
Abstract
OBJECTIVE Optimism and purpose in life are associated with improved health outcomes. More information is needed on biological mechanisms, including immunosenescence. We investigated if psychological well-being is associated with healthier immunosenescence-related measures including naïve and terminally differentiated CD4+ and CD8+ T cell percentages, CD4+:CD8+, and cytomegalovirus (CMV) IgG response. METHODS Participants were adults over age 50 from the Health and Retirement Study. Optimism was measured using the Life Orientation Test Revised. Purpose in life was assessed using the subscale from the Ryff psychological well-being measure. We examined the cross-sectional associations of optimism and purpose in life with measures of T cell subsets using linear regression and with CMV IgG using ordered logit regression, controlling for potential confounding factors. RESULTS The final analytic sample ranged from 7250 to 7870. After adjusting for sociodemographic factors, a 1-SD increment in optimism was associated with the percentage of naïve CD4+ T cells increasing by 0.6 (95%CI 0.2%, 1.0%). A 1-SD increment in purpose in life was associated with the percentage of naïve CD4+ T cells increasing by 0.9 (95%CI 0.5%, 1.3%) after adjusting for sociodemographic factors and the association was maintained after further adjustments for health conditions, depression, and health behaviors. For naïve CD8+ T cell percentages, CD4:CD8 ratios, and CMV IgG antibodies, associations were seen only in models that adjusted for age. No significant associations were seen in any models for the terminally differentiated CD4+ and CD8+ T cells. CONCLUSIONS We found associations of optimism and purpose in life with naïve CD4+ T cell percentages.
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Affiliation(s)
- Hayami K Koga
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America; Harvard Center for Population and Development Studies, Cambridge, MA, United States of America.
| | - Francine Grodstein
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, United States of America
| | - David R Williams
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America; Department of African and African American Studies, Department of Sociology, Harvard University, Cambridge, MA, United States of America
| | - Dawn L Demeo
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA, United States of America
| | - Laura D Kubzansky
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
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2
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Xia T, Zhou Y, An J, Cui Z, Zhong X, Cui T, Lv B, Zhao X, Gao X. Benefit delayed immunosenescence by regulating CD4 +T cells: A promising therapeutic target for aging-related diseases. Aging Cell 2024:e14317. [PMID: 39155409 DOI: 10.1111/acel.14317] [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: 03/24/2024] [Revised: 07/25/2024] [Accepted: 08/08/2024] [Indexed: 08/20/2024] Open
Abstract
CD4+T cells play a notable role in immune protection at different stages of life. During aging, the interaction between the body's internal and external environment and CD4+T cells results in a series of changes in the CD4+T cells pool making it involved in immunosenescence. Many studies have extensively examined the subsets and functionality of CD4+T cells within the immune system, highlighted their pivotal role in disease pathogenesis, progression, and therapeutic interventions. However, the underlying mechanism of CD4+T cells senescence and its intricate association with diseases remains to be elucidated and comprehensively understood. By summarizing the immunosenescent progress and network of CD4+T cell subsets, we reveal the crucial role of CD4+T cells in the occurrence and development of age-related diseases. Furthermore, we provide new insights and theoretical foundations for diseases targeting CD4+T cell subsets aging as a treatment focus, offering novel approaches for therapy, especially in infections, cancers, autoimmune diseases, and other diseases in the elderly.
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Affiliation(s)
- Tingting Xia
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ying Zhou
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jiayao An
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhi Cui
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinqin Zhong
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Tianyi Cui
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bin Lv
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xin Zhao
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiumei Gao
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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3
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Wojciechowicz K, Kuncewicz K, Rutkowski J, Jassem J, Rodziewicz-Motowidło S, Wardowska A, Spodzieja M. Targeting BTLA with the peptide inhibitor HVEM(14-39) - A new way to restore the activity of T cells in melanoma. Biomed Pharmacother 2024; 175:116675. [PMID: 38733770 DOI: 10.1016/j.biopha.2024.116675] [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: 03/01/2024] [Revised: 04/21/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
The complex of B- and T-lymphocyte attenuator (BTLA) and herpes virus entry mediator (HVEM) plays a critical role in immune regulation and has emerged as a promising therapeutic target for cancer treatment. In this study, we investigated the potential of the peptide inhibitor HVEM(14-39) to restore peripheral T cell activity in patients with advanced melanoma. In these patients, CD8+ T cells downregulated BTLA expression and increased HVEM expression upon activation. The addition of HVEM(14-39) reduced the percentage of BTLA+ CD8+ T cells and increased the subpopulation of HVEM+ CD8+ T cells. Additionally, HVEM(14-39) enhanced T cell activation, proliferation, and the shift toward effector memory T cell subpopulations. Finally, this peptide affected the proliferation rate and late apoptosis of melanoma cell line in co-culture with T cells. These findings suggest that HVEM(14-39) can overcome T cell exhaustion and improve antitumor responses. Peptide-based immunotherapy targeting the BTLA-HVEM complex offers a promising alternative to monoclonal antibody-based therapies, with the potential for fewer side effects and higher treatment efficacy.
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Affiliation(s)
- Karolina Wojciechowicz
- Department of Physiopathology, Faculty of Medicine, Medical University of Gdańsk, Poland
| | - Katarzyna Kuncewicz
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdańsk, Poland
| | - Jacek Rutkowski
- Department of Oncology and Radiotherapy, Faculty of Medicine, Medical University of Gdańsk, Poland
| | - Jacek Jassem
- Department of Oncology and Radiotherapy, Faculty of Medicine, Medical University of Gdańsk, Poland
| | | | - Anna Wardowska
- Department of Physiopathology, Faculty of Medicine, Medical University of Gdańsk, Poland.
| | - Marta Spodzieja
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdańsk, Poland.
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Antonelli Incalzi R, Consoli A, Lopalco P, Maggi S, Sesti G, Veronese N, Volpe M. Influenza vaccination for elderly, vulnerable and high-risk subjects: a narrative review and expert opinion. Intern Emerg Med 2024; 19:619-640. [PMID: 37891453 PMCID: PMC11039544 DOI: 10.1007/s11739-023-03456-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023]
Abstract
Influenza is associated with a substantial health burden, especially in high-risk subjects such as older adults, frail individuals and those with underlying chronic diseases. In this review, we summarized clinical findings regarding the impact of influenza in vulnerable populations, highlighted the benefits of influenza vaccination in preventing severe illness and complications and reviewed the main evidence on the efficacy, effectiveness and safety of the vaccines that are best suited to older adults among those available in Italy. The adverse outcomes associated with influenza infection in elderly and frail subjects and those with underlying chronic diseases are well documented in the literature, as are the benefits of vaccination (mostly in older adults and in patients with cardiovascular diseases, diabetes and chronic lung disease). High-dose and adjuvanted inactivated influenza vaccines were specifically developed to provide enhanced immune responses in older adults, who generally have low responses mainly due to immunosenescence, comorbidities and frailty. These vaccines have been evaluated in clinical studies and systematic reviews by international immunization advisory boards, including the European Centre for Disease Prevention and Control. The high-dose vaccine is the only licensed influenza vaccine to have demonstrated greater efficacy versus a standard-dose vaccine in preventing laboratory-confirmed influenza in a randomized controlled trial. Despite global recommendations, the vaccination coverage in high-risk populations is still suboptimal. All healthcare professionals (including specialists) have an important role in increasing vaccination rates.
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Affiliation(s)
- Raffaele Antonelli Incalzi
- Gerontology Unit, Department of Internal Medicine and Geriatrics, Campus Bio-Medico University and Teaching Hospital, Rome, Italy
| | - Agostino Consoli
- Department of Medicine and Aging Sciences, "G. d'Annunzio" University, Chieti, Italy
| | - Pierluigi Lopalco
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
| | - Stefania Maggi
- Institute of Neuroscience-Aging Branch, National Research Council, Padua, Italy
| | - Giorgio Sesti
- Department of Clinical and Molecular Medicine, "La Sapienza" University of Rome, Rome, Italy.
| | - Nicola Veronese
- Department of Internal Medicine, Geriatrics Section, University of Palermo, Palermo, Italy
| | - Massimo Volpe
- Department of Clinical and Molecular Medicine, "La Sapienza" University of Rome and IRCCS San Raffaele, Rome, Italy
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5
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Wojciechowicz K, Kuncewicz K, Lisowska KA, Wardowska A, Spodzieja M. Peptides targeting the BTLA-HVEM complex can modulate T cell immune response. Eur J Pharm Sci 2024; 193:106677. [PMID: 38128840 DOI: 10.1016/j.ejps.2023.106677] [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: 09/28/2023] [Revised: 11/30/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023]
Abstract
Immune checkpoints secure the proper function of the immune system and the maintenance of the BTLA-HVEM complex, an inhibitory immune checkpoint, is one of the pathways vital for T cell responsiveness to various stimuli. The present study reports the immunomodulatory potential of five peptides targeting the BTLA-HVEM complex on the activity of human T cells. Isolated T cells were exposed to the peptides alone or combined with CD3/CD28 mAb for 72 h or 120 h. The flow cytometry was used to evaluate the activation markers (CD69, CD62L, CD25), changes within the T cell memory compartment, proliferation rate, and apoptosis of T cells. The immunomodulatory effect of the peptides was visible as an increase in the percentage of CD4+ and CD8+ T cells expressing CD69 or CD25, a boost in T cell proliferation, and shifts in the T cell memory compartment. Pep(2) and Pep(5) were the most promising compounds, displaying a putative immune-restoring function.
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Affiliation(s)
- Karolina Wojciechowicz
- Department of Physiopathology, Faculty of Medicine, Medical University of Gdańsk, Poland
| | - Katarzyna Kuncewicz
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdańsk, Poland
| | - Katarzyna A Lisowska
- Department of Physiopathology, Faculty of Medicine, Medical University of Gdańsk, Poland
| | - Anna Wardowska
- Department of Physiopathology, Faculty of Medicine, Medical University of Gdańsk, Poland.
| | - Marta Spodzieja
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdańsk, Poland.
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6
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Conde-Torres D, Blanco-González A, Seco-González A, Suárez-Lestón F, Cabezón A, Antelo-Riveiro P, Piñeiro Á, García-Fandiño R. Unraveling lipid and inflammation interplay in cancer, aging and infection for novel theranostic approaches. Front Immunol 2024; 15:1320779. [PMID: 38361953 PMCID: PMC10867256 DOI: 10.3389/fimmu.2024.1320779] [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: 10/12/2023] [Accepted: 01/15/2024] [Indexed: 02/17/2024] Open
Abstract
The synergistic relationships between Cancer, Aging, and Infection, here referred to as the CAIn Triangle, are significant determinants in numerous health maladies and mortality rates. The CAIn-related pathologies exhibit close correlations with each other and share two common underlying factors: persistent inflammation and anomalous lipid concentration profiles in the membranes of affected cells. This study provides a comprehensive evaluation of the most pertinent interconnections within the CAIn Triangle, in addition to examining the relationship between chronic inflammation and specific lipidic compositions in cellular membranes. To tackle the CAIn-associated diseases, a suite of complementary strategies aimed at diagnosis, prevention, and treatment is proffered. Our holistic approach is expected to augment the understanding of the fundamental mechanisms underlying these diseases and highlight the potential of shared features to facilitate the development of novel theranostic strategies.
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Affiliation(s)
- Daniel Conde-Torres
- Departamento de Física Aplicada, Facultade de Física, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Organic Chemistry Department, Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Alexandre Blanco-González
- Departamento de Física Aplicada, Facultade de Física, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Organic Chemistry Department, Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- MD.USE Innovations S.L., Edificio Emprendia, Santiago de Compostela, Spain
| | - Alejandro Seco-González
- Organic Chemistry Department, Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Fabián Suárez-Lestón
- Departamento de Física Aplicada, Facultade de Física, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Organic Chemistry Department, Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- MD.USE Innovations S.L., Edificio Emprendia, Santiago de Compostela, Spain
| | - Alfonso Cabezón
- Organic Chemistry Department, Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Paula Antelo-Riveiro
- Departamento de Física Aplicada, Facultade de Física, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Organic Chemistry Department, Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Ángel Piñeiro
- Departamento de Física Aplicada, Facultade de Física, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Rebeca García-Fandiño
- Organic Chemistry Department, Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
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Chen X, Xiang F, Cao X, Lv W, Shen B, Zou J, Ding X. Immunological features of ESRD patients undergoing hemodialysis of various ages. Int Urol Nephrol 2024; 56:313-323. [PMID: 37358762 DOI: 10.1007/s11255-023-03683-1] [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: 02/23/2023] [Accepted: 06/19/2023] [Indexed: 06/27/2023]
Abstract
AIMS To investigate the immunological characteristics of hemodialysis (HD) patients with end-stage renal disease (ESRD) of various ages, and the impact of age-related immune alterations on these patients, with a focus on peripheral T cells. METHODS From September 2016 to September 2019, HD patients were enrolled and followed prospectively for 3 years. Patients were divided into three groups based on their ages: < 45, 45 to 64, and ≥ 65. The distribution of T cell subsets in different age groups was investigated and compared. The effects of altered T cell subsets on overall survival were also investigated. RESULTS A total of 371 HD patients were enrolled. The reduced number of naive CD8+ T cells (P < 0.001) and increased number of EMRA CD8+ T cells (P = 0.024) were independently associated with the advanced age among all T cell subsets studied. Patient survival may be affected by numerical changes in naive CD8+ T cells. However, when HD patients were < 45 or ≥ 65 years, the reduction had no significant impact on survival. Only in HD patients aged 45 to 64 years, the number of naïve CD8+ T cells found to be insufficient but not deficient, identified as an independent predictor of poor survival. CONCLUSIONS The most significant age-related immune change in HD patients was a decrease in peripheral naive CD8+ T cells, which was an independent predictor of 3-year overall survival in HD patients aged 45 ~ 64 years.
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Affiliation(s)
- XiaoHong Chen
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
- Hemodialysis Quality Control Center of Shanghai, Shanghai, China
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
| | - FangFang Xiang
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
- Hemodialysis Quality Control Center of Shanghai, Shanghai, China
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
| | - XueSen Cao
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
- Hemodialysis Quality Control Center of Shanghai, Shanghai, China
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
| | - WenLv Lv
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
- Hemodialysis Quality Control Center of Shanghai, Shanghai, China
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
| | - Bo Shen
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
- Hemodialysis Quality Control Center of Shanghai, Shanghai, China
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
| | - JianZhou Zou
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
- Hemodialysis Quality Control Center of Shanghai, Shanghai, China
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
| | - XiaoQiang Ding
- Shanghai Institute of Kidney and Dialysis, Shanghai, China.
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.
- Hemodialysis Quality Control Center of Shanghai, Shanghai, China.
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.
- Shanghai Medical Center of Kidney, Shanghai, China.
- Blood Purification Center, Zhongshan Hospital of Fudan University, 136 Yi Xue Yuan Road, Shanghai, 200032, People's Republic of China.
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Gao G, Xue Q, He J, Wu M, Jiang Y, Li Q, Zhang Y, Shi W. Single-cell RNA sequencing in double-hit lymphoma: IMPDH2 induces the progression of lymphoma by activating the PI3K/AKT/mTOR signaling pathway. Int Immunopharmacol 2023; 125:111125. [PMID: 37907047 DOI: 10.1016/j.intimp.2023.111125] [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: 07/15/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 11/02/2023]
Abstract
BACKGROUND IMPDH2 is the rate-limiting enzyme of the de novo GTP synthesis pathway and has a key role in tumors; however, the specific mechanism underlying IMPDH2 activity in diffuse large B cell lymphoma (DLBCL) is still undetermined. This study aims to explore the potential mechanism of IMPDH2 in DLBCL, and its possible involvement in double-hit lymphoma (DHL), i.e., cases with translocations involving MYC and BCL2 and/or BCL6. METHODS Using single-cell sequencing and bioinformatics analysis to screen for IMPDH2. Exploring the differential expression of IMPDH2 and its correlation with prognosis through multiplexed immunofluorescence analysis. Using CCK8, EdU, clone formation assay, and animal model to analyze biological behavior changes after inhibiting IMPDH2. Explaining the potential mechanism of IMPDH2 in DLBCL by Western blot and multiplexed immunofluorescence. RESULTS Prognostic risk model was constructed by single-cell sequencing, which identified IMPDH2 as a DHL-related gene. IMPDH2 was highly expressed in cell lines and tissues, associated with poor patient prognosis and an independent prognostic factor. In vitro and in vivo experiments showed that IMPDH2 inhibition significantly inhibited DHL cell proliferation. Flow cytometry showed apoptosis and cycle arrest. Western blot results suggested that c-Myc regulated the activation of PI3K/AKT/mTOR signaling pathway by IMPDH2 to promote tumor development in DHL. Moreover, multiplex immunofluorescence revealed decreased T-cell infiltration within the tumor microenvironment exhibiting concurrent high expression of IMPDH2 and PD-L1. CONCLUSIONS Our results suggest that IMPDH2 functions as a tumor-promoting factor in DHL. This finding is expected to generate novel insights into the pathogenesis of these patients, thereby identifying potential therapeutic targets.
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Affiliation(s)
- Guangcan Gao
- Department of Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong 226001, Jiangsu, China; Nantong University Medical School, 19, Qixiu Road, Nantong 226001, Jiangsu, China; Department of Clinical Biobank & Institute of Oncology, Nantong University Affiliated Hospital, Nantong 226001, Jiangsu, China
| | - Qingfeng Xue
- Department of Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong 226001, Jiangsu, China; Nantong University Medical School, 19, Qixiu Road, Nantong 226001, Jiangsu, China; Department of Clinical Biobank & Institute of Oncology, Nantong University Affiliated Hospital, Nantong 226001, Jiangsu, China
| | - Jing He
- Department of Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong 226001, Jiangsu, China; Nantong University Medical School, 19, Qixiu Road, Nantong 226001, Jiangsu, China; Department of Clinical Biobank & Institute of Oncology, Nantong University Affiliated Hospital, Nantong 226001, Jiangsu, China
| | - Meng Wu
- Department of Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong 226001, Jiangsu, China
| | - Yongning Jiang
- Department of Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong 226001, Jiangsu, China; Nantong University Medical School, 19, Qixiu Road, Nantong 226001, Jiangsu, China; Department of Clinical Biobank & Institute of Oncology, Nantong University Affiliated Hospital, Nantong 226001, Jiangsu, China
| | - Quanqing Li
- Department of Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong 226001, Jiangsu, China; Nantong University Medical School, 19, Qixiu Road, Nantong 226001, Jiangsu, China; Department of Clinical Biobank & Institute of Oncology, Nantong University Affiliated Hospital, Nantong 226001, Jiangsu, China
| | - Yaping Zhang
- Nantong University Medical School, 19, Qixiu Road, Nantong 226001, Jiangsu, China; Department of Clinical Biobank & Institute of Oncology, Nantong University Affiliated Hospital, Nantong 226001, Jiangsu, China; Department of Hematology, Affiliated Hospital of Nantong University, 20, Xisi Road, Nantong 226001, Jiangsu, China.
| | - Wenyu Shi
- Department of Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong 226001, Jiangsu, China; Nantong University Medical School, 19, Qixiu Road, Nantong 226001, Jiangsu, China; Department of Clinical Biobank & Institute of Oncology, Nantong University Affiliated Hospital, Nantong 226001, Jiangsu, China.
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9
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Lancaster JN. Aging of lymphoid stromal architecture impacts immune responses. Semin Immunol 2023; 70:101817. [PMID: 37572552 PMCID: PMC10929705 DOI: 10.1016/j.smim.2023.101817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/14/2023]
Abstract
The secondary lymphoid organs (SLOs) undergo structural changes with age, which correlates with diminishing immune responses against infectious disease. A growing body of research suggests that the aged tissue microenvironment can contribute to decreased immune function, independent of intrinsic changes to hematopoietic cells with age. Stromal cells impart structural integrity, facilitate fluid transport, and provide chemokine and cytokine signals that are essential for immune homeostasis. Mechanisms that drive SLO development have been described, but their roles in SLO maintenance with advanced age are unknown. Disorganization of the fibroblasts of the T cell and B cell zones may reduce the maintenance of naïve lymphocytes and delay immune activation. Reduced lymphatic transport efficiency with age can also delay the onset of the adaptive immune response. This review focuses on recent studies that describe age-associated changes to the stroma of the lymph nodes and spleen. We also review recent investigations into stromal cell biology, which include high-dimensional analysis of the stromal cell transcriptome and viscoelastic testing of lymph node mechanical properties, as they constitute an important framework for understanding aging of the lymphoid tissues.
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Affiliation(s)
- Jessica N Lancaster
- Department of Immunology, Mayo Clinic, 13400 E. Shea Blvd., Scottsdale, AZ, USA; Department of Cancer Biology, Mayo Clinic, 13400 E. Shea Blvd., Scottsdale, AZ, USA.
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10
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Zhang L, Yan J, Zhang C, Feng S, Zhan Z, Bao Y, Zhang S, Chao G. Improving intestinal inflammaging to delay aging? A new perspective. Mech Ageing Dev 2023; 214:111841. [PMID: 37393959 DOI: 10.1016/j.mad.2023.111841] [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: 03/27/2023] [Revised: 06/14/2023] [Accepted: 06/29/2023] [Indexed: 07/04/2023]
Abstract
Greying population is becoming an increasingly critical issue for social development. In advanced aging context, organismal multiple tissues and organs experience a progressive deterioration, initially presenting with functional decline, followed by structural disruption and eventually organ failure. The aging of the gut is one of the key links. Decreased gut function leads to reduced nutrient absorption and can perturb systemic metabolic rates. The degeneration of the intestinal structure causes the migration of harmful components such as pathogens and toxins, inducing pathophysiological changes in other organs through the "brain-gut axis" and "liver-gut axis". There is no accepted singular underlying mechanism of aged gut. While the inflamm-aging theory was first proposed in 2000, the mutual promotion of chronic inflammation and aging has attracted much attention. Numerous studies have established that gut microbiome composition, gut immune function, and gut barrier integrity are involved in the formation of inflammaging in the aging gut. Remarkably, inflammaging additionally drives the development of aging-like phenotypes, such as microbiota dysbiosis and impaired intestinal barrier, via a broad array of inflammatory mediators. Here we demonstrate the mechanisms of inflammaging in the gut and explore whether aging-like phenotypes in the gut can be negated by improving gut inflammaging.
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Affiliation(s)
- Lan Zhang
- Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China
| | - Junbin Yan
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, The Xin Hua Hospital of Zhejiang Province, Hangzhou 310000, China
| | - Chi Zhang
- Endoscopic Center, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China
| | - Shuyan Feng
- Zhejiang Chinese Medical University, Hangzhou 310000, China
| | - Zheli Zhan
- Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China
| | - Yang Bao
- Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China
| | - Shuo Zhang
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, The Xin Hua Hospital of Zhejiang Province, Hangzhou 310000, China.
| | - Guanqun Chao
- Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China.
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11
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Yamauchi A, Yoshimoto S, Kudo A, Takagi S. Negative Influence of Aging on Differentiation and Proliferation of CD8 + T-Cells in Dogs. Vet Sci 2023; 10:541. [PMID: 37756063 PMCID: PMC10534501 DOI: 10.3390/vetsci10090541] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/24/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023] Open
Abstract
Immunosenescence is an age-related change in the immune system characterized by a reduction in naïve T-cells and an impaired proliferative capacity of CD8+ T-cells in older individuals. Recent research revealed the crucial impact of immunosenescence on the development and control of cancer, and aging is one of the causes that diminish the therapeutic efficacy of cancer immunotherapies targeting CD8+ T-cell activation. Despite dog cancer being defined as an age-related disease, there are few fundamental understandings regarding the relationship between aging and the canine immune system. Therefore, we aimed to elucidate the characteristics of immunosenescence in dogs and analyzed the effects of aging on the differentiation status and proliferation of canine CD8+ T cells using T-cell specific stimulation with anti-canine CD3/CD28 antibody-coated beads and interleukin-2. As a result, we found that older dogs have a lower proliferative capacity of CD8+ T-cells and a reduction in the naïve subset in their peripheral blood. Further analysis showed that older dogs had attenuated proliferation of the effector and central memory subsets. These results indicate the importance of maintaining less differentiated subsets to expand CD8+ T-cells in dogs and provide helpful insight into the development of dog immune therapies that require T-cell expansion ex vivo.
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Affiliation(s)
- Akinori Yamauchi
- Laboratory of Small Animal Surgery, Department of Veterinary Medicine, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara 252-5201, Kanagawa, Japan
| | - Sho Yoshimoto
- Laboratory of Small Animal Surgery, Department of Veterinary Medicine, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara 252-5201, Kanagawa, Japan
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ayano Kudo
- Laboratory of Small Animal Surgery, Department of Veterinary Medicine, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara 252-5201, Kanagawa, Japan
| | - Satoshi Takagi
- Laboratory of Small Animal Surgery, Department of Veterinary Medicine, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara 252-5201, Kanagawa, Japan
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12
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Pozo-Balado MDM, Bulnes-Ramos Á, Olivas-Martínez I, Garrido-Rodríguez V, Lozano C, Álvarez-Ríos AI, Sánchez-Sánchez B, Sánchez-Bejarano E, Maldonado-Calzado I, Martín-Lara JM, Santamaría JA, Bernal R, González-Escribano MF, Leal M, Pacheco YM. Higher plasma levels of thymosin-α1 are associated with a lower waning of humoral response after COVID-19 vaccination: an eight months follow-up study in a nursing home. Immun Ageing 2023; 20:9. [PMID: 36879319 PMCID: PMC9986663 DOI: 10.1186/s12979-023-00334-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 02/23/2023] [Indexed: 03/08/2023]
Abstract
BACKGROUND Older people achieve lower levels of antibody titers than younger populations after Covid-19 vaccination and show a marked waning humoral immunity over time, likely due to the senescence of the immune system. Nevertheless, age-related predictive factors of the waning humoral immune response to the vaccine have been scarcely explored. In a cohort of residents and healthcare workers from a nursing home that had received two doses of the BNT162b2 vaccine, we measured specific anti-S antibodies one (T1), four (T4), and eight (T8) months after receiving the second dose. Thymic-related functional markers, including thymic output, relative telomere length, and plasma thymosin-α1 levels, as well as immune cellular subsets, and biochemical and inflammatory biomarkers, were determined at T1, and tested for their associations with the magnitude of the vaccine response (T1) and the durability of such response both, at the short- (T1-T4) and the long-term (T1-T8). We aimed to identify age-related factors potentially associated with the magnitude and persistence of specific anti-S immunoglobulin G (IgG)-antibodies after COVID-19 vaccination in older people. RESULTS Participants (100% men, n = 98), were subdivided into three groups: young (< 50 years-old), middle-age (50-65 years-old), and older (≥65 years-old). Older participants achieved lower antibody titers at T1 and experienced higher decreases in both the short- and long-term. In the entire cohort, while the magnitude of the initial response was mainly associated with the levels of homocysteine [β (95% CI); - 0.155 (- 0.241 to - 0.068); p = 0.001], the durability of such response at both, the short-term and the long-term were predicted by the levels of thymosin-α1 [- 0.168 (- 0.305 to - 0.031); p = 0.017, and - 0.123 (- 0.212 to - 0.034); p = 0.008, respectively]. CONCLUSIONS Higher plasma levels of thymosin-α1 were associated with a lower waning of anti-S IgG antibodies along the time. Our results suggest that plasma levels of thymosin-α1 could be used as a biomarker for predicting the durability of the responses after COVID-19 vaccination, possibly allowing to personalize the administration of vaccine boosters.
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Affiliation(s)
- María Del Mar Pozo-Balado
- Immunology Laboratory, Institute of Biomedicine of Seville (IBiS), Immunology Service, Virgen del Rocío University Hospital (HUVR)/CSIC/University of Seville, Ave. Manuel Siurot s/n, 41013, Seville, Spain
| | - Ángel Bulnes-Ramos
- Immunology Laboratory, Institute of Biomedicine of Seville (IBiS), Immunology Service, Virgen del Rocío University Hospital (HUVR)/CSIC/University of Seville, Ave. Manuel Siurot s/n, 41013, Seville, Spain
| | - Israel Olivas-Martínez
- Immunology Laboratory, Institute of Biomedicine of Seville (IBiS), Immunology Service, Virgen del Rocío University Hospital (HUVR)/CSIC/University of Seville, Ave. Manuel Siurot s/n, 41013, Seville, Spain
| | - Vanesa Garrido-Rodríguez
- Immunology Laboratory, Institute of Biomedicine of Seville (IBiS), Immunology Service, Virgen del Rocío University Hospital (HUVR)/CSIC/University of Seville, Ave. Manuel Siurot s/n, 41013, Seville, Spain
| | - Carmen Lozano
- Microbiology Service, Virgen del Rocío University Hospital (HUVR), Seville, Spain
| | - Ana I Álvarez-Ríos
- Biochemistry Service, Virgen del Rocío University Hospital (HUVR), Seville, Spain
| | | | | | | | | | | | - Rafael Bernal
- Hogar Residencia de la Santa Caridad, Seville, Spain
| | - María Francisca González-Escribano
- Immunology Laboratory, Institute of Biomedicine of Seville (IBiS), Immunology Service, Virgen del Rocío University Hospital (HUVR)/CSIC/University of Seville, Ave. Manuel Siurot s/n, 41013, Seville, Spain.,Immunology Service, Virgen del Rocío University Hospital (HUVR), Seville, Spain
| | - Manuel Leal
- Hogar Residencia de la Santa Caridad, Seville, Spain.,Internal Medicine Service, Viamed Hospital, Santa Ángela de la Cruz, Seville, Spain
| | - Yolanda M Pacheco
- Immunology Laboratory, Institute of Biomedicine of Seville (IBiS), Immunology Service, Virgen del Rocío University Hospital (HUVR)/CSIC/University of Seville, Ave. Manuel Siurot s/n, 41013, Seville, Spain.
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13
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Zhang L, Jiao W, Deng H, Hu C, Xu J, Yu J, Liu L, Zhang M, Liu J, Chen G. High-throughput Treg cell receptor sequencing reveals differential immune repertoires in rheumatoid arthritis with kidney deficiency. PeerJ 2023; 11:e14837. [PMID: 36751634 PMCID: PMC9899432 DOI: 10.7717/peerj.14837] [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: 08/08/2022] [Accepted: 01/10/2023] [Indexed: 02/05/2023] Open
Abstract
Background Regulatory T (Treg) cells are important immune cells that are regulated by adaptive immunity in the composition of Treg-cell subsets and T-cell receptors (TCRs). Treg cells are related to most autoimmune diseases, such as rheumatoid arthritis (RA). In traditional Chinese medicine (TCM), RA is typically attributed to kidney deficiency (KD) associated with the immunosenescence that causes immune dysfunction and the impaired function of Treg cells. So far, however, no mechanism related to KD and immune repertoires has been identified in RA. Methods Flow cytometry and high-throughput Treg-cell receptor sequencing were used to investigate the amount of different Treg-cell subsets and the diversity of TCRs between RA patients and healthy subjects, as well as between KD RA and non-KD RA patients. RT-qPCR was used to validate the high-throughput sequencing results. Results The data showed that the amount of naïve Treg cells in KD patients was less than in non-KD RA patients (P = 0.004) with no significant differences observed between other subsets. In the TCR of Treg cells, the length of complementarity determining region 3 (CDR3) was low and clonotypes increased in the KD group compared with the non-KD group. The diversity and abundance of Treg TCRs were low, as determined by the Hill number. In addition, several V(D)J combinations, such as T-cell receptor beta variable 7-2 (TRBV7-2), TRBV11-1, TRBV13, TRBV15, and TRBJ2-3, varied significantly between the two groups, indicating that KD causes Treg dysfunction. RT-qPCR shows that FOXP3 expression in peripheral blood Treg is lower in KD than in non-KD. Conclusion The results demonstrate the close correlation between KD and immune repertoires in RA and provide a new evaluation method for RA in TCM.
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Affiliation(s)
- Lu Zhang
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Jiao
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hui Deng
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Congqi Hu
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jia Xu
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiahui Yu
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lijuan Liu
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Mingying Zhang
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiduo Liu
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guangxing Chen
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Baiyun Hospital of the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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14
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Vick LV, Collins CP, Khuat LT, Wang Z, Dunai C, Aguilar EG, Stoffel K, Yendamuri S, Smith R, Mukherjee S, Barbi J, Canter RJ, Monjazeb AM, Murphy WJ. Aging augments obesity-induced thymic involution and peripheral T cell exhaustion altering the "obesity paradox". Front Immunol 2023; 13:1012016. [PMID: 36776393 PMCID: PMC9910174 DOI: 10.3389/fimmu.2022.1012016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 12/07/2022] [Indexed: 01/28/2023] Open
Abstract
Introduction The incidence of obesity, a condition characterized by systemic chronic inflammation, has reached pandemic proportions and is a poor prognostic factor in many pathologic states. However, its role on immune parameters has been diverse and at times contradictory. We have previously demonstrated that obesity can result in what has been called the "obesity paradox" which results in increased T cell exhaustion, but also greater efficacy of immune checkpoint blockade in cancer treatment. Methods The role of obesity, particularly in the context of aging, has not been robustly explored using preclinical models. We therefore evaluated how age impacts the immune environment on T cell development and function using diet-induced obese (DIO) mice. Results We observed that DIO mice initially displayed greater thymopoiesis but then developed greater thymic involution over time compared to their lean counterparts. Both aging and obesity resulted in increased T cell memory conversion combined with increased expression of T cell exhaustion markers and Treg expansion. This increased T cell immunosuppression with age then resulted in a loss of anti-tumor efficacy by immune checkpoint inhibitors (ICIs) in older DIO mice compared to the younger DIO counterparts. Discussion These results suggest that both aging and obesity contribute to T cell dysfunction resulting in increased thymic involution. This combined with increased T cell exhaustion and immunosuppressive parameters affects immunotherapy efficacy reducing the advantage of obesity in cancer immunotherapy responses.
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Affiliation(s)
- Logan V. Vick
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, United States
| | - Craig P. Collins
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, United States
| | - Lam T. Khuat
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, United States
| | - Ziming Wang
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, United States
| | - Cordelia Dunai
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, United States
| | - Ethan G. Aguilar
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, United States
| | - Kevin Stoffel
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, United States
| | - Sai Yendamuri
- Department of Thoracic Surgery, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Randall Smith
- Department of Immunology Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Sarbajit Mukherjee
- Department of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Joseph Barbi
- Department of Thoracic Surgery, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
- Department of Immunology Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Robert J. Canter
- Division of Surgical Oncology, Department of Surgery, University of California Davis Comprehensive Cancer Center, University of California Davis School of Medicine, Sacramento, CA, United States
| | - Arta M. Monjazeb
- Department of Radiation Oncology, University of California Davis Comprehensive Cancer Center, University of California School of Medicine, Sacramento, CA, United States
| | - William J. Murphy
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, United States
- Department of Internal Medicine, Division of Hematology and Oncology, University of California Davis School of Medicine, Sacramento, CA, United States
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15
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Buondonno I, Sassi F, Cattaneo F, D’Amelio P. Association between Immunosenescence, Mitochondrial Dysfunction and Frailty Syndrome in Older Adults. Cells 2022; 12:cells12010044. [PMID: 36611837 PMCID: PMC9818926 DOI: 10.3390/cells12010044] [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: 12/02/2022] [Revised: 12/19/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Aging is associated with changes in the immune system, increased inflammation and mitochondrial dysfunction. The relationship between these phenomena and the clinical phenotype of frailty is unclear. Here, we evaluated the immune phenotypes, T cell functions and mitochondrial functions of immune cells in frail and robust older subjects. We enrolled 20 frail subjects age- and gender-matched with 20 robust controls, and T cell phenotype, response to immune stimulation, cytokine production and immune cell mitochondrial function were assessed. Our results showed that numbers of CD4+ and CD8+ T cells were decreased in frail subjects, without impairment to their ratios. Memory and naïve T cells were not significantly affected by frailty, whereas the expression of CD28 but not that of ICOS was decreased in T cells from frail subjects. T cells from robust subjects produced more IL-17 after CD28 stimulation. Levels of serum cytokines were similar in frail subjects and controls. Mitochondrial bioenergetics and ATP levels were significantly lower in immune cells from frail subjects. In conclusion, we suggest that changes in T cell profiles are associated with aging rather than with frailty syndrome; however, changes in T cell response to immune stimuli and reduced mitochondrial activity in immune cells may be considered hallmarks of frailty.
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Affiliation(s)
- Ilaria Buondonno
- Geriatric and Bone Disease Unit, Department of Medical Science, University of Torino, 10126 Torino, Italy
| | - Francesca Sassi
- Geriatric and Bone Disease Unit, Department of Medical Science, University of Torino, 10126 Torino, Italy
| | - Francesco Cattaneo
- Department of Public Health Sciences and Pediatrics, University of Torino, 10126 Torino, Italy
| | - Patrizia D’Amelio
- Geriatric and Bone Disease Unit, Department of Medical Science, University of Torino, 10126 Torino, Italy
- Department of Medicine, Service of Geriatric Medicine & Geriatric Rehabilitation, University of Lausanne Hospital (CHUV), 1011 Lausanne, Switzerland
- Correspondence: ; Tel.: +41-213143712
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16
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Ackerley CG, Smith SA, Murray PM, Amancha PK, Arthur RA, Zhu Z, Chahroudi A, Amara RR, Hu YJ, Kelley CF. The rectal mucosal immune environment and HIV susceptibility among young men who have sex with men. Front Immunol 2022; 13:972170. [PMID: 36341414 PMCID: PMC9631201 DOI: 10.3389/fimmu.2022.972170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 09/07/2022] [Indexed: 12/03/2022] Open
Abstract
Young men who have sex with men (YMSM) represent a particularly high-risk group for HIV acquisition in the US, despite similarly reported rates of sexual activity as older, adult MSM (AMSM). Increased rates of HIV infection among YMSM compared to AMSM could be partially attributable to differences within the rectal mucosal (RM) immune environment associated with earlier sexual debut and less lifetime exposure to receptive anal intercourse. Using an ex vivo explant HIV challenge model, we found that rectal tissues from YMSM supported higher levels of p24 at peak viral replication timepoints compared to AMSM. Among YMSM, the RM was characterized by increased CD4+ T cell proliferation, as well as lower frequencies of tissue resident CD8+ T cells and pro-inflammatory cytokine producing CD4+ and CD8+ T cells. In addition, the microbiome composition of YMSM was enriched for anaerobic taxa that have previously been associated with HIV acquisition risk, including Prevotella, Peptostreptococcus, and Peptoniphilus. These distinct immunologic and microbiome characteristics were found to be associated with higher HIV replication following ex vivo challenge of rectal explants, suggesting the RM microenvironment of YMSM may be uniquely conducive to HIV infection.
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Affiliation(s)
- Cassie G. Ackerley
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- *Correspondence: Cassie G. Ackerley,
| | - S. Abigail Smith
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
| | - Phillip M. Murray
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
| | - Praveen K. Amancha
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
| | - Robert A. Arthur
- Emory Integrated Computational Core, Emory University, Atlanta, GA, United States
| | - Zhengyi Zhu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Ann Chahroudi
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Emory National Primate Research Center, Emory University, Atlanta, GA, United States
- Center for Childhood Infections and Vaccines of Children’s Healthcare of Atlanta, Emory University, Atlanta, GA, United States
| | - Rama R. Amara
- Emory National Primate Research Center, Emory University, Atlanta, GA, United States
- Department of Microbiology and Immunology, Emory University, Atlanta, GA, United States
| | - Yi-Juan Hu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Colleen F. Kelley
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
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17
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Hohman LS, Osborne LC. A gut-centric view of aging: Do intestinal epithelial cells contribute to age-associated microbiota changes, inflammaging, and immunosenescence? Aging Cell 2022; 21:e13700. [PMID: 36000805 PMCID: PMC9470900 DOI: 10.1111/acel.13700] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 07/07/2022] [Accepted: 08/03/2022] [Indexed: 01/25/2023] Open
Abstract
Intestinal epithelial cells (IECs) serve as both a physical and an antimicrobial barrier against the microbiota, as well as a conduit for signaling between the microbiota and systemic host immunity. As individuals age, the balance between these systems undergoes a myriad of changes due to age-associated changes to the microbiota, IECs themselves, immunosenescence, and inflammaging. In this review, we discuss emerging data related to age-associated loss of intestinal barrier integrity and posit that IEC dysfunction may play a central role in propagating age-associated alterations in microbiota composition and immune homeostasis.
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Affiliation(s)
- Leah S. Hohman
- Department of Microbiology & Immunology, Life Sciences InstituteUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - Lisa C. Osborne
- Department of Microbiology & Immunology, Life Sciences InstituteUniversity of British ColumbiaVancouverBritish ColumbiaCanada
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18
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Vasconcelos ABS, Aragão-Santos JC, de Resende-Neto AG, Rodrigues LS, Corrêa CB, Schimieguel DM, Camargo EA, de Paula Ramos S, Da Silva-Grigoletto ME. Effects of functional and combined training on subsets of memory T cells and functional fitness of postmenopausal women: A randomized controlled trial. Exp Gerontol 2022; 167:111898. [PMID: 35863693 DOI: 10.1016/j.exger.2022.111898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/21/2022] [Accepted: 07/13/2022] [Indexed: 11/27/2022]
Abstract
This study investigated the effects of functional (FT) and combined (CT) training on memory T cells and functional fitness of postmenopausal women. 108 participants were randomly allocated to the control (CG), FT and CT groups. Functional fitness was assessed through physical tests similar to daily activities, such as dressing on and taking off a t-shirt (DTTS), 10-meter walking and countermovement jump. The CCR7 and CD45RA surface markers were used to characterize the memory T cells. Regarding the frequency of memory T cells, both training protocols reduced the percentage of CD4+ Terminally Differentiated Effector Memory T Cells Re-Expressing CD45RA (TEMRA) (FT: -38.73 %, p = 0.0455; CT: -30.43 %, p = 0.0036) and CD8+ TEMRA cells (FT: -22.24 %, p < 0.0013; CT: -13.13 %, p = 0.0051). Also, both FT and CT increased the percentage of central memory (TCM) CD4+ (FT: +55.22 %, p = 0.0104; CT: +68.03 %, p = 0.0167) and CD8+ (FT: +142.00 %, p < 0.0001; CT: +83.76 %, p = 0.0001) T cells. Furthermore, FT and CT increased the percentages of CD8+ effector memory T cells (TEM) (FT: +63.58 %, p < 0.0001; CT: +14.12 %, p = 0.0041). Regarding functional fitness, both training protocols reduced the time required to perform the DTTS (FT: -19.71 %, p < 0.0001; CT: -14.69 %, p < 0.0001) and 10-m walk tests (FT: -13.05 %, p < 0.0001; CT: -12.83 %, p < 0.0001), in addition to improving jumping ability (FT: +29.97 %, p < 0.0001; CT: +20.00 %, p < 0.0001), both compared to the pre-test or to the CG. Therefore, both FT and CT seem to be equally effective alternatives for promoting the reduction of CD4+ and CD8+ TEMRA cells, increasing the frequency of TCM and TEM cells, and improving functional fitness of postmenopausal women.
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Affiliation(s)
- Alan Bruno Silva Vasconcelos
- Graduate Program in Physiological Sciences (PROCFIS), Federal University of Sergipe, São Cristóvão, Sergipe, Brazil; Functional Training Group (FTG), Department of Physical Education, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil.
| | - José Carlos Aragão-Santos
- Functional Training Group (FTG), Department of Physical Education, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil; Graduate Program in Health Sciences (PPGCS), Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Antônio Gomes de Resende-Neto
- Functional Training Group (FTG), Department of Physical Education, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil; Graduate Program in Health Sciences (PPGCS), Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | | | - Cristiane Bani Corrêa
- Graduate Program in Physiological Sciences (PROCFIS), Federal University of Sergipe, São Cristóvão, Sergipe, Brazil; Graduate Program in Health Sciences (PPGCS), Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | | | - Enilton Aparecido Camargo
- Graduate Program in Physiological Sciences (PROCFIS), Federal University of Sergipe, São Cristóvão, Sergipe, Brazil; Graduate Program in Health Sciences (PPGCS), Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | | | - Marzo Edir Da Silva-Grigoletto
- Graduate Program in Physiological Sciences (PROCFIS), Federal University of Sergipe, São Cristóvão, Sergipe, Brazil; Functional Training Group (FTG), Department of Physical Education, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
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19
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Kwok T, Medovich SC, Silva-Junior IA, Brown EM, Haug JC, Barrios MR, Morris KA, Lancaster JN. Age-Associated Changes to Lymph Node Fibroblastic Reticular Cells. FRONTIERS IN AGING 2022; 3:838943. [PMID: 35821826 PMCID: PMC9261404 DOI: 10.3389/fragi.2022.838943] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 01/07/2022] [Indexed: 12/26/2022]
Abstract
The decreased proportion of antigen-inexperienced, naïve T cells is a hallmark of aging in both humans and mice, and contributes to reduced immune responses, particularly against novel and re-emerging pathogens. Naïve T cells depend on survival signals received during their circulation among the lymph nodes by direct contacts with stroma, in particular fibroblastic reticular cells. Macroscopic changes to the architecture of the lymph nodes have been described, but it is unclear how lymph node stroma are altered with age, and whether these changes contribute to reduced naïve T cell maintenance. Here, using 2-photon microscopy, we determined that the aged lymph node displayed increased fibrosis and correspondingly, that naïve T-cell motility was impaired in the aged lymph node, especially in proximity to fibrotic deposition. Functionally, adoptively transferred young naïve T-cells exhibited reduced homeostatic turnover in aged hosts, supporting the role of T cell-extrinsic mechanisms that regulate their survival. Further, we determined that early development of resident fibroblastic reticular cells was impaired, which may correlate to the declining levels of naïve T-cell homeostatic factors observed in aged lymph nodes. Thus, our study addresses the controversy as to whether aging impacts the composition lymph node stroma and supports a model in which impaired differentiation of lymph node fibroblasts and increased fibrosis inhibits the interactions necessary for naïve T cell homeostasis.
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Affiliation(s)
- Tina Kwok
- Department of Immunology, Mayo Clinic, Scottsdale, AZ, United States
| | | | | | - Elise M Brown
- Department of Immunology, Mayo Clinic, Scottsdale, AZ, United States
| | - Joel C Haug
- Department of Immunology, Mayo Clinic, Scottsdale, AZ, United States
| | | | - Karina A Morris
- Department of Immunology, Mayo Clinic, Scottsdale, AZ, United States
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20
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Lancaster JN, Keatinge‐Clay DE, Srinivasan J, Li Y, Selden HJ, Nam S, Richie ER, Ehrlich LIR. Central tolerance is impaired in the middle-aged thymic environment. Aging Cell 2022; 21:e13624. [PMID: 35561351 PMCID: PMC9197411 DOI: 10.1111/acel.13624] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/03/2022] [Accepted: 04/20/2022] [Indexed: 12/03/2022] Open
Abstract
One of the earliest hallmarks of immune aging is thymus involution, which not only reduces the number of newly generated and exported T cells, but also alters the composition and organization of the thymus microenvironment. Thymic T‐cell export continues into adulthood, yet the impact of thymus involution on the quality of newly generated T‐cell clones is not well established. Notably, the number and proportion of medullary thymic epithelial cells (mTECs) and expression of tissue‐restricted antigens (TRAs) decline with age, suggesting the involuting thymus may not promote efficient central tolerance. Here, we demonstrate that the middle‐aged thymic environment does not support rapid motility of medullary thymocytes, potentially diminishing their ability to scan antigen presenting cells (APCs) that display the diverse self‐antigens that induce central tolerance. Consistent with this possibility, thymic slice assays reveal that the middle‐aged thymic environment does not support efficient negative selection or regulatory T‐cell (Treg) induction of thymocytes responsive to either TRAs or ubiquitous self‐antigens. This decline in central tolerance is not universal, but instead impacts lower‐avidity self‐antigens that are either less abundant or bind to TCRs with moderate affinities. Additionally, the decline in thymic tolerance by middle age is accompanied by both a reduction in mTECs and hematopoietic APC subsets that cooperate to drive central tolerance. Thus, age‐associated changes in the thymic environment result in impaired central tolerance against moderate‐avidity self‐antigens, potentially resulting in export of increasingly autoreactive naive T cells, with a deficit of Treg counterparts by middle age.
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Affiliation(s)
- Jessica N. Lancaster
- Department of Molecular Biosciences The University of Texas at Austin Austin Texas USA
| | | | - Jayashree Srinivasan
- Department of Molecular Biosciences The University of Texas at Austin Austin Texas USA
| | - Yu Li
- Department of Molecular Biosciences The University of Texas at Austin Austin Texas USA
| | - Hilary J. Selden
- Department of Molecular Biosciences The University of Texas at Austin Austin Texas USA
| | - Seohee Nam
- Department of Molecular Biosciences The University of Texas at Austin Austin Texas USA
| | - Ellen R. Richie
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Lauren I. R. Ehrlich
- Department of Molecular Biosciences The University of Texas at Austin Austin Texas USA
- Department of Oncology Dell Medical School at The University of Texas at Austin Austin Texas USA
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21
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Trujillo-Vargas CM, Mauk KE, Hernandez H, de Souza RG, Yu Z, Galletti JG, Dietrich J, Paulsen F, de Paiva CS. Immune phenotype of the CD4 + T cells in the aged lymphoid organs and lacrimal glands. GeroScience 2022; 44:2105-2128. [PMID: 35279788 DOI: 10.1007/s11357-022-00529-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 02/11/2022] [Indexed: 02/07/2023] Open
Abstract
Aging is associated with a massive infiltration of T lymphocytes in the lacrimal gland. Here, we aimed to characterize the immune phenotype of aged CD4+ T cells in this tissue as compared with lymphoid organs. To perform this, we sorted regulatory T cells (Tregs, CD4+CD25+GITR+) and non-Tregs (CD4+CD25negGITRneg) in lymphoid organs from female C57BL/6J mice and subjected these cells to an immunology NanoString® panel. These results were confirmed by flow cytometry, live imaging, and tissue immunostaining in the lacrimal gland. Importantly, effector T helper 1 (Th1) genes were highly upregulated on aged Tregs, including the master regulator Tbx21. Among the non-Tregs, we also found a significant increase in the levels of EOMESmed/high, TbetnegIFN-γ+, and CD62L+CD44negCD4+ T cells with aging, which are associated with cell exhaustion, immunopathology, and the generation of tertiary lymphoid tissue. At the functional level, aged Tregs from lymphoid organs are less able to decrease proliferation and IFN-γ production of T responders at any age. More importantly, human lacrimal glands (age range 55-81 years) also showed the presence of CD4+Foxp3+ cells. Further studies are needed to propose potential molecular targets to avoid immune-mediated lacrimal gland dysfunction with aging.
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Affiliation(s)
- Claudia M Trujillo-Vargas
- Grupo de Inmunodeficiencias Primarias, Facultad de Medicina, Universidad de Antioquia, UdeA, Medellín, Colombia.,Department of Ophthalmology, Ocular Surface Center, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, Houston, TX, NC 505G, USA
| | - Kelsey E Mauk
- Graduate Program in Immunology & Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Humberto Hernandez
- Department of Ophthalmology, Ocular Surface Center, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, Houston, TX, NC 505G, USA
| | - Rodrigo G de Souza
- Department of Ophthalmology, Ocular Surface Center, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, Houston, TX, NC 505G, USA
| | - Zhiyuan Yu
- Department of Ophthalmology, Ocular Surface Center, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, Houston, TX, NC 505G, USA
| | - Jeremias G Galletti
- Institute of Experimental Medicine, CONICET-National Academy of Medicine of Buenos Aires, Buenos Aires, Argentina
| | - Jana Dietrich
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Friedrich Paulsen
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Cintia S de Paiva
- Department of Ophthalmology, Ocular Surface Center, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, Houston, TX, NC 505G, USA.
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22
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Nicoli F, Clave E, Wanke K, von Braun A, Bondet V, Alanio C, Douay C, Baque M, Lependu C, Marconi P, Stiasny K, Heinz FX, Muetsch M, Duffy D, Boddaert J, Sauce D, Toubert A, Karrer U, Appay V. Primary immune responses are negatively impacted by persistent herpesvirus infections in older people: results from an observational study on healthy subjects and a vaccination trial on subjects aged more than 70 years old. EBioMedicine 2022; 76:103852. [PMID: 35114631 PMCID: PMC8818547 DOI: 10.1016/j.ebiom.2022.103852] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 01/07/2022] [Accepted: 01/14/2022] [Indexed: 01/08/2023] Open
Abstract
Background Advanced age is accompanied by a decline of immune functions, which may play a role in increased vulnerability to emerging pathogens and low efficacy of primary vaccinations in elderly people. The capacity to mount immune responses against new antigens is particularly affected in this population. However, its precise determinants are not fully understood. We aimed here at establishing the influence of persistent viral infections on the naive T-cell compartment and primary immune responsiveness in older adults. Methods We assessed immunological parameters, related to CD8+ and CD4+ T-cell responsiveness, according to the serological status for common latent herpesviruses in two independent cohorts: 1) healthy individuals aged 19y to 95y (n = 150) and 2) individuals above 70y old enrolled in a primo-vaccination clinical trial (n = 137). Findings We demonstrate a prevalent effect of age and CMV infection on CD8+ and CD4+ naive T cells, respectively. CMV seropositivity was associated with blunted CD4+ T-cell and antibody responses to primary vaccination. Interpretation These data provide insights on the changes in adaptive immunity over time and the associated decline in vaccine efficacy with ageing. This knowledge is important for the management of emerging infectious diseases in elderly populations.
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Affiliation(s)
- Francesco Nicoli
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, INSERM U1135, 75013 Paris, France; Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Emmanuel Clave
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, Paris F-75010, France
| | - Kerstin Wanke
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zurich, Zurich, Switzerland
| | - Amrei von Braun
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Vincent Bondet
- Translational Immunology Lab, Institut Pasteur, Université de Paris, Paris, France
| | - Cécile Alanio
- INSERM U932, PSL University, Institut Curie, Paris 75005, France; Laboratoire D'immunologie Clinique, Institut Curie, Paris 75005, France
| | - Corinne Douay
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, Paris F-75010, France
| | - Margaux Baque
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, INSERM U1135, 75013 Paris, France
| | - Claire Lependu
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, INSERM U1135, 75013 Paris, France
| | - Peggy Marconi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Karin Stiasny
- Center for Virology, Medical University of Vienna, Austria
| | - Franz X Heinz
- Center for Virology, Medical University of Vienna, Austria
| | - Margot Muetsch
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Darragh Duffy
- Translational Immunology Lab, Institut Pasteur, Université de Paris, Paris, France
| | - Jacques Boddaert
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, INSERM U1135, 75013 Paris, France
| | - Delphine Sauce
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, INSERM U1135, 75013 Paris, France
| | - Antoine Toubert
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, Paris F-75010, France; Laboratoire d'Immunologie et d'Histocompatibilité, AP-HP, Hopital Saint-Louis, Paris F-75010, France
| | - Urs Karrer
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zurich, Zurich, Switzerland; Division of Infectious Diseases, Department of Medicine, Cantonal Hospital of Winterthur, Winterthur, Switzerland.
| | - Victor Appay
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, INSERM U1135, 75013 Paris, France; Université de Bordeaux, CNRS UMR5164, INSERM ERL1303, ImmunoConcEpT, Bordeaux, France; International Research Center of Medical Sciences, Kumamoto University, Kumamoto, Japan.
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23
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Sharma R, Diwan B, Sharma A, Witkowski JM. Emerging cellular senescence-centric understanding of immunological aging and its potential modulation through dietary bioactive components. Biogerontology 2022; 23:699-729. [PMID: 36261747 PMCID: PMC9581456 DOI: 10.1007/s10522-022-09995-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 10/12/2022] [Indexed: 12/13/2022]
Abstract
Immunological aging is strongly associated with the observable deleterious effects of human aging. Our understanding of the causes, effects, and therapeutics of aging immune cells has long been considered within the sole purview of immunosenescence. However, it is being progressively realized that immunosenescence may not be the only determinant of immunological aging. The cellular senescence-centric theory of aging proposes a more fundamental and specific role of immune cells in regulating senescent cell (SC) burden in aging tissues that has augmented the notion of senescence immunotherapy. Now, in addition, several emerging studies are suggesting that cellular senescence itself may be prevalent in aging immune cells, and that senescent immune cells exhibiting characteristic markers of cellular senescence, similar to non-leucocyte cells, could be among the key drivers of various facets of physiological aging. The present review integrates the current knowledge related to immunosenescence and cellular senescence in immune cells per se, and aims at providing a cohesive overview of these two phenomena and their significance in immunity and aging. We present evidence and rationalize that understanding the extent and impact of cellular senescence in immune cells vis-à-vis immunosenescence is necessary for truly comprehending the notion of an 'aged immune cell'. In addition, we also discuss the emerging significance of dietary factors such as phytochemicals, probiotic bacteria, fatty acids, and micronutrients as possible modulators of immunosenescence and cellular senescence. Evidence and opportunities related to nutritional bioactive components and immunological aging have been deliberated to augment potential nutrition-oriented immunotherapy during aging.
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Affiliation(s)
- Rohit Sharma
- grid.430140.20000 0004 1799 5083Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229 India
| | - Bhawna Diwan
- grid.430140.20000 0004 1799 5083Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229 India
| | - Anamika Sharma
- grid.464631.20000 0004 1775 3615Department of Biological Sciences, National Institute of Pharmaceutical Education and Research, Hyderabad, 500037 India
| | - Jacek M. Witkowski
- grid.11451.300000 0001 0531 3426Department of Pathophysiology, Medical University of Gdańsk, Dębinki 7, 80-211 Gdańsk, Poland
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24
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Santoro A, Bientinesi E, Monti D. Immunosenescence and inflammaging in the aging process: age-related diseases or longevity? Ageing Res Rev 2021; 71:101422. [PMID: 34391943 DOI: 10.1016/j.arr.2021.101422] [Citation(s) in RCA: 177] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/01/2021] [Accepted: 08/03/2021] [Indexed: 12/12/2022]
Abstract
During aging the immune system (IS) undergoes remarkable changes that collectively are known as immunosenescence. It is a multifactorial and dynamic phenomenon that affects both natural and acquired immunity and plays a critical role in most chronic diseases in older people. For a long time, immunosenescence has been considered detrimental because it may lead to a low-grade, sterile chronic inflammation we proposed to call "inflammaging" and a progressive reduction in the ability to trigger effective antibody and cellular responses against infections and vaccinations. Recently, many scientists revised this negative meaning because it can be considered an essential adaptation/remodeling resulting from the lifelong immunological biography of single individuals from an evolutionary perspective. Inflammaging can be considered an adaptive process because it can trigger an anti-inflammatory response to counteract the age-related pro-inflammatory environment. Centenarians represent a valuable model to study the beneficial changes occurring in the IS with age. These extraordinary individuals reached the extreme limits of human life by slowing down the aging process and, in most cases, delaying, avoiding or surviving the major age-associated diseases. They indeed show a complex and heterogeneous phenotype determined by an improved ability to adapt and remodel in response to harmful stimuli. This review aims to point out the intimate relationship between immunosenescence and inflammaging and how these processes impact unsuccessful aging rather than longevity. We also describe the gut microbiota age-related changes as one of the significant triggers of inflammaging and the sex/gender differences in the immune system of the elderly, contributing to the sex/gender disparity in terms of epidemiology, pathophysiology, symptoms and severity of age-related diseases. Finally, we discuss how these phenomena could influence the susceptibility to COVID-19 infection.
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25
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Álvarez-Luquín DD, Guevara-Salinas A, Arce-Sillas A, Espinosa-Cárdenas R, Leyva-Hernández J, Montes-Moratilla EU, Adalid-Peralta L. Increased Tc17 cell levels and imbalance of naïve/effector immune response in Parkinson's disease patients in a two-year follow-up: a case control study. J Transl Med 2021; 19:378. [PMID: 34488776 PMCID: PMC8422782 DOI: 10.1186/s12967-021-03055-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 08/24/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Neuroinflammation has been proved to play a role in dopaminergic neuronal death in Parkinson's disease (PD). This link highlights the relevance of the immune response in the progression of the disease. However, little is known about the impact of peripheral immune response on the disease. This study is aimed to evaluate how immune cell populations change in untreated PD patients followed-up for 2 years. METHODS Thirty-two patients with no previous treatment (PD-0 yr) and twenty-two healthy subjects (controls) were included in the study. PD patients were sampled 1 and 2 years after the start of the treatment. CD4 T cells (naïve/central memory, effector, and activated), CD8 T cells (activated, central memory, effector memory, NKT, Tc1, Tc2, and Tc17), and B cells (activated, plasma, and Lip-AP) were characterized by flow cytometry. RESULTS We observed decreased levels of naïve/central memory CD4 and CD8 T cells, Tc1, Tc2, NKT, and plasma cells, and increased levels of effector T cells, activated T cells, and Tc17. CONCLUSIONS PD patients treated for 2 years showed an imbalance in the naive/effector immune response. Naïve and effector cell levels were associated with clinical deterioration. These populations are also correlated to aging. On the other hand, higher Tc17 levels suggest an increased inflammatory response, which may impact the progression of the disease. Our results highlight the relevant effect of treatment on the immune response, which could improve our management of the disease.
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Affiliation(s)
- Diana D Álvarez-Luquín
- Unidad Periférica Para El Estudio de La Neuroinflamación en Patologías Neurológicas del Instituto de Investigaciones Biomédicas en El Instituto Nacional de Neurología Y Neurocirugía, Insurgentes Sur 3877, La Fama, 14269, Ciudad de México, México
| | - Adrián Guevara-Salinas
- Unidad Periférica Para El Estudio de La Neuroinflamación en Patologías Neurológicas del Instituto de Investigaciones Biomédicas en El Instituto Nacional de Neurología Y Neurocirugía, Insurgentes Sur 3877, La Fama, 14269, Ciudad de México, México
| | - Asiel Arce-Sillas
- Unidad Periférica Para El Estudio de La Neuroinflamación en Patologías Neurológicas del Instituto de Investigaciones Biomédicas en El Instituto Nacional de Neurología Y Neurocirugía, Insurgentes Sur 3877, La Fama, 14269, Ciudad de México, México
| | - Raquel Espinosa-Cárdenas
- Unidad Periférica Para El Estudio de La Neuroinflamación en Patologías Neurológicas del Instituto de Investigaciones Biomédicas en El Instituto Nacional de Neurología Y Neurocirugía, Insurgentes Sur 3877, La Fama, 14269, Ciudad de México, México
| | - Jaquelín Leyva-Hernández
- Unidad Periférica Para El Estudio de La Neuroinflamación en Patologías Neurológicas del Instituto de Investigaciones Biomédicas en El Instituto Nacional de Neurología Y Neurocirugía, Insurgentes Sur 3877, La Fama, 14269, Ciudad de México, México
| | - Esteban U Montes-Moratilla
- Unidad Periférica Para El Estudio de La Neuroinflamación en Patologías Neurológicas del Instituto de Investigaciones Biomédicas en El Instituto Nacional de Neurología Y Neurocirugía, Insurgentes Sur 3877, La Fama, 14269, Ciudad de México, México
| | - Laura Adalid-Peralta
- Unidad Periférica Para El Estudio de La Neuroinflamación en Patologías Neurológicas del Instituto de Investigaciones Biomédicas en El Instituto Nacional de Neurología Y Neurocirugía, Insurgentes Sur 3877, La Fama, 14269, Ciudad de México, México.
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26
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Vetrano DL, Triolo F, Maggi S, Malley R, Jackson TA, Poscia A, Bernabei R, Ferrucci L, Fratiglioni L. Fostering healthy aging: The interdependency of infections, immunity and frailty. Ageing Res Rev 2021; 69:101351. [PMID: 33971332 PMCID: PMC9588151 DOI: 10.1016/j.arr.2021.101351] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/16/2021] [Accepted: 05/03/2021] [Indexed: 12/20/2022]
Abstract
Untangling the interdependency of infections, immunity and frailty may help to clarify their roles in the maintenance of health in aging individuals, and the recent COVID-19 pandemic has further highlighted such priority. In this scoping review we aimed to systematically collect the evidence on 1) the impact of common infections such as influenza, pneumonia and varicella zoster on frailty development, and 2) the role played by frailty in the response to immunization of older adults. Findings are discussed under a unifying framework to identify knowledge gaps and outline their clinical and public health implications to foster a healthier aging. Twenty-nine studies (113,863 participants) selected to answer the first question provided a moderately strong evidence of an association between infections and physical as well as cognitive decline - two essential dimensions of frailty. Thirteen studies (34,520 participants) investigating the second aim, showed that frailty was associated with an impaired immune response in older ages, likely due to immunosenescence. However, the paucity of studies, the absence of tools to predict vaccine efficacy, and the lack of studies investigating the efficacy of newer vaccines in presence of frailty, strongly limit the formulation of more personalized immunization strategies for older adults. The current evidence suggests that infections and frailty repeatedly cross each other pathophysiological paths and accelerate the aging process in a vicious circle. Such evidence opens to several considerations. First, the prevention of both conditions pass through a life course approach, which includes several individual and societal aspects. Second, the maintenance of a well-functioning immune system may be accomplished by preventing frailty, and vice versa. Third, increasing the adherence to immunization may delay the onset of frailty and maintain the immune system homeostasis, beyond preventing infections.
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Affiliation(s)
- Davide L Vetrano
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden; Centro Medicina dell'Invecchiamento, Fondazione Policlinico "A- Gemelli" IRCCS and Catholic University of Rome, Italy.
| | - Federico Triolo
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Stefania Maggi
- National Research Council, Neuroscience Institute, Padua, Italy
| | - Richard Malley
- Division of Infectious Diseases, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Thomas A Jackson
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK; Department of Geriatrics, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | | | - Roberto Bernabei
- Centro Medicina dell'Invecchiamento, Fondazione Policlinico "A- Gemelli" IRCCS and Catholic University of Rome, Italy
| | - Luigi Ferrucci
- Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, USA
| | - Laura Fratiglioni
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden; Stockholm Gerontology Research Center, Stockholm, Sweden
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27
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Gallerani E, Proietto D, Dallan B, Campagnaro M, Pacifico S, Albanese V, Marzola E, Marconi P, Caputo A, Appay V, Gavioli R, Nicoli F. Impaired Priming of SARS-CoV-2-Specific Naive CD8 + T Cells in Older Subjects. Front Immunol 2021; 12:693054. [PMID: 34326844 PMCID: PMC8315546 DOI: 10.3389/fimmu.2021.693054] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/21/2021] [Indexed: 12/14/2022] Open
Abstract
Advanced age is associated with severe symptoms and death upon SARS-CoV-2 infection. Virus-specific CD8+ T-cell responses have shown to be protective toward critical COVID-19 manifestations, suggesting that suboptimal cellular immunity may contribute to the age-pattern of the disease. The induction of a CD8+ T-cell response against an emerging pathogen like SARS-CoV-2 relies on the activation of naive T cells. To investigate whether the primary CD8+ T-cell response against this virus is defective in advanced age, we used an in vitro approach to prime SARS-CoV-2-specific naive CD8+ T cells from healthy, unexposed donors of different age groups. Compared to younger adults, older individuals display a poor SARS-CoV-2-specific T-cell priming capacity in terms of both magnitude and quality of the response. In addition, older subjects recognize a lower number of epitopes. Our results implicate that immune aging is associated with altered primary SARS-CoV-2-specific CD8+ T-cell responses.
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Affiliation(s)
- Eleonora Gallerani
- Laboratory of Biochemistry, Immunology and Microbiology (BIM), Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Davide Proietto
- Laboratory of Biochemistry, Immunology and Microbiology (BIM), Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Beatrice Dallan
- Laboratory of Biochemistry, Immunology and Microbiology (BIM), Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Marco Campagnaro
- Laboratory of Biochemistry, Immunology and Microbiology (BIM), Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Salvatore Pacifico
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Valentina Albanese
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Erika Marzola
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Peggy Marconi
- Laboratory of Biochemistry, Immunology and Microbiology (BIM), Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Antonella Caputo
- Laboratory of Biochemistry, Immunology and Microbiology (BIM), Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Victor Appay
- CNRS UMR 5164, ImmunoConcEpT, Université de Bordeaux, Bordeaux, France
| | - Riccardo Gavioli
- Laboratory of Biochemistry, Immunology and Microbiology (BIM), Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Francesco Nicoli
- Laboratory of Biochemistry, Immunology and Microbiology (BIM), Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
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28
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Govindasamy V, Rajendran A, Lee ZX, Ooi GC, Then KY, Then KL, Gayathri M, Kumar Das A, Cheong SK. The potential role of mesenchymal stem cells in modulating antiageing process. Cell Biol Int 2021; 45:1999-2016. [PMID: 34245637 DOI: 10.1002/cbin.11652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/24/2021] [Accepted: 06/17/2021] [Indexed: 12/19/2022]
Abstract
Ageing and age-related diseases share some basic origin that largely converges on inflammation. Precisely, it boils down to a common pathway characterised by the appearance of a fair amount of proinflammatory cytokines known as inflammageing. Among the proposed treatment for antiageing, MSCs gained attention in recent years. Since mesenchymal stem cells (MSCs) can differentiate itself into a myriad of terminal cells, previously it was believed that these cells migrate to the site of injury and perform their therapeutic effect. However, with the more recent discovery of huge amounts of paracrine factors secreted by MSCs, it is now widely accepted that these cells do not engraft upon transplantation but rather unveil their benefits through excretion of bioactive molecules namely those involved in inflammatory and immunomodulatory activities. Conversely, the true function of these paracrine changes has not been thoroughly investigated all these years. Hence, this review will describe in detail on ways MSCs may capitalize its paracrine properties in modulating antiageing process. Through a comprehensive literature search various elements in the antiageing process, we aim to provide a novel treatment perspective of MSCs in antiageing related clinical conditions.
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Affiliation(s)
- Vijayendran Govindasamy
- Research and Development Department, CryoCord Sdn Bhd, Bio-X Centre, Cyberjaya, Selangor, Malaysia
| | - Abilashini Rajendran
- Research and Development Department, CryoCord Sdn Bhd, Bio-X Centre, Cyberjaya, Selangor, Malaysia
| | - Zhi-Xin Lee
- Research and Development Department, CryoCord Sdn Bhd, Bio-X Centre, Cyberjaya, Selangor, Malaysia
| | - Ghee-Chien Ooi
- Research and Development Department, CryoCord Sdn Bhd, Bio-X Centre, Cyberjaya, Selangor, Malaysia
| | - Kong-Yong Then
- Research and Development Department, CryoCord Sdn Bhd, Bio-X Centre, Cyberjaya, Selangor, Malaysia.,Brighton Healthcare (Bio-X Healthcare Sdn Bhd), Bio-X Centre, Cyberjaya, Selangor, Malaysia
| | - Khong-Lek Then
- Research and Development Department, CryoCord Sdn Bhd, Bio-X Centre, Cyberjaya, Selangor, Malaysia
| | - Merilynn Gayathri
- Brighton Healthcare (Bio-X Healthcare Sdn Bhd), Bio-X Centre, Cyberjaya, Selangor, Malaysia
| | - Anjan Kumar Das
- Deparment of Surgery, IQ City Medical College, Durgapur, West Bengal, India
| | - Soon-Keng Cheong
- Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman (UTAR), Kajang, Selangor, Malaysia
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29
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Wang J, Bie Z, Zhang Y, Li L, Zhu Y, Zhang Y, Nie X, Zhang P, Cheng G, Di X, Li X, Cheng S, Feng L. Prognostic value of the baseline circulating T cell receptor β chain diversity in advanced lung cancer. Oncoimmunology 2021; 10:1899609. [PMID: 33796410 PMCID: PMC7993185 DOI: 10.1080/2162402x.2021.1899609] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
An indicator for systemic evaluation of the adaptive immune status is lacking. Peripheral blood is important in antitumour immunity, and the T-cell receptor (TCR) repertoire diversity is key for effective immunity. This study aimed to investigate changes in the circulating T cell receptor β chain (TCRB) diversity during the first few (1 ~ 4) treatment cycles and its clinical value in patients with advanced lung cancer. TCRB-enriched sequencing data combined with transcriptomic RNA sequencing data of peripheral blood leukocytes were obtained from 72 patients with advanced lung cancer before and after targeted therapy or chemotherapy. Changes in the circulating TCRB diversity during treatment and the relationship of the baseline circulating TCRB diversity with prognosis and therapeutic effects were evaluated. We found that targeted therapy or chemotherapy did not significantly affect the T lymphocyte composition or circulating TCRB diversity (3.83 vs 3.74, T-test, p = .16) in patients with advanced lung adenocarcinoma (LUAD) during the first few treatment cycles. The higher circulating TCRB diversity was linked to improved therapeutic effects (T-test, p = .00083) in LUAD patients receiving targeted therapy. Higher baseline circulating TCRB diversity was associated with better prognosis. In addition, a five-factor prognostic risk score model was built for more accurate prognosis prediction for LUAD patients. The chemotherapeutic agents for advanced lung cancer do not significantly affect adaptive immune function over the first few treatment cycles. The circulating TCRB diversity reflects the adaptive immunological repertoire and might be a convenient indicator for evaluating the adaptive immune status and prognosis.
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Affiliation(s)
- Jiaqi Wang
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhixin Bie
- Minimally Invasive Tumor Therapies Center, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Yajing Zhang
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lin Li
- Department of Medical Oncology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Yujie Zhu
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yi Zhang
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xin Nie
- Department of Medical Oncology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Ping Zhang
- Department of Medical Oncology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Gang Cheng
- Department of Medical Oncology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Xuebing Di
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoguang Li
- Minimally Invasive Tumor Therapies Center, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Shujun Cheng
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lin Feng
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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30
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Iaccarino Idelson P, Rendina D, Strazzullo P. Nutrition and the Covid-19 pandemic: Three factors with high impact on community health. Nutr Metab Cardiovasc Dis 2021; 31:756-761. [PMID: 33549427 PMCID: PMC7723026 DOI: 10.1016/j.numecd.2020.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/23/2020] [Accepted: 12/01/2020] [Indexed: 11/05/2022]
Abstract
AIMS In the course of the COVID-19 pandemic, multiple suggestions have been delivered through websites and social media referring to natural substances and various kinds of supplements with thaumaturgical properties in preventing and/or fighting the coronavirus infection. Indeed, there is no clinical trial evidence that a dietary or pharmacological supplementation of any particular substance will increase the effectiveness of the immune defences. There are however three nutritional issues that deserve special attention under the present circumstances, namely vitamin D deficiency, excess salt intake and inappropriate alcohol consumption. Here is a short review of the current knowledge about the possible role of these factors in the immunity defence system and their potential impact on the modulation of the immune response to SARS-COV2 infection. DATA SYNTHESIS For all of these factors there is convincing evidence of an impact on the immune defence structure and function. In the absence of RCT demonstration that increased ingestion of any given substance may confer protection against the new enemy, special attention to correction of these three nutritional criticisms is certainly warranted at the time of COVID pandemic. CONCLUSIONS We propose that the inappropriate intake of salt and alcohol and the risk of inadequate vitamin D status should be object of screening, in particular in subjects at high mortality risk from SARS-COV 2 infection, such as institutionalised elderly subjects and all those affected by predisposing conditions.
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Affiliation(s)
- Paola Iaccarino Idelson
- Department of Clinical Medicine and Surgery, University of Naples Federico II Medical School, Italy.
| | - Domenico Rendina
- Department of Clinical Medicine and Surgery, University of Naples Federico II Medical School, Italy
| | - Pasquale Strazzullo
- Department of Clinical Medicine and Surgery, University of Naples Federico II Medical School, Italy
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31
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Rabaneda-Bueno R, Torres-Carrillo N, Ávila-Funes JA, Gutiérrez-Robledo LM, Pérez-Suárez TG, Acosta JL, Torres-Castro S, Fletes-Rayas AL, Gutierrez-Hurtado I, Sandoval-Pinto E, Cremades R, Torres-Carrillo NM. PTPN22 gene functional polymorphism (rs2476601) in older adults with frailty syndrome. Mol Biol Rep 2021; 48:1193-1204. [PMID: 33611779 DOI: 10.1007/s11033-021-06212-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 02/02/2021] [Indexed: 10/22/2022]
Abstract
The frailty syndrome is a common clinical marker of vulnerability in older adults conducive to an overall decline in inflammatory stress responsiveness; yet little is known about the genetic risk factors for frailty in elderly. Our aim was to investigate the association between the rs2476601 polymorphism in PTPN22 gene and susceptibility to frailty in Mexican older adults. Data included 630 subjects 70 and older from The Coyoacán cohort, classified as frail, pre-frail, and non-frail following Fried's criteria. Sociodemographic and clinical characteristics were compared between groups at baseline and after a multivariate analysis. The rs2476601 polymorphism was genotyped by TaqMan genotyping assay using real-time PCR and genotype frequencies were determined for each frailty phenotype in all participants and subsets by age range. Genetic association was examined using stratified and interaction analyses adjusting for age, sex and variables selected in the multivariate analysis. Disability for day-life activities, depression and cognitive impairment were associated with the risk of pre-frailty and frailty at baseline and after adjustment. Carrying the T allele increased significantly the risk of frailty in patients 76 and older (OR 5.64, 95% CI 4.112-7.165) and decreased the risk of pre-frailty under no clinical signs of depression (OR 0.53; 95% CI 0.17-1.71). The PTPN22 polymorphism, rs2476601, could be a genetic risk factor for frailty as subject to quality of life. This is the first study analyzing such relationship in Mexican older adults. Confirming these findings requires additional association studies on wider age ranges in populations of older adults with frailty syndrome.
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Affiliation(s)
- Rubén Rabaneda-Bueno
- Biology Centre of the Czech Academy of Sciences, Institute of Hydrobiology, 370 05, České Budějovice, Czech Republic.,Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Norma Torres-Carrillo
- Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - José Alberto Ávila-Funes
- Departamento de Geriatría, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, México
| | | | - Thalía Gabriela Pérez-Suárez
- Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - José Luis Acosta
- Departamento de Biotecnología Agrícola, Instituto Politécnico Nacional-Centro Interdisciplinario de Investigación Para el Desarrollo Integral Regional (CIIDIR), Unidad Sinaloa, Guasave, Sinaloa, México
| | | | - Ana Lilia Fletes-Rayas
- Departamento de Enfermería Clínica Integrada, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Itzae Gutierrez-Hurtado
- Departamento de Biología Molecular, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Elena Sandoval-Pinto
- Departamento de Biología Celular y Molecular, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Rosa Cremades
- Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Nora Magdalena Torres-Carrillo
- Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México.
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32
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Caslin B, Mohler K, Thiagarajan S, Melamed E. Alcohol as friend or foe in autoimmune diseases: a role for gut microbiome? Gut Microbes 2021; 13:1916278. [PMID: 34224314 PMCID: PMC8259720 DOI: 10.1080/19490976.2021.1916278] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 03/16/2021] [Accepted: 04/01/2021] [Indexed: 02/07/2023] Open
Abstract
Alcohol is well known for promoting systemic inflammation and aggravating multiple chronic health conditions. Thus, alcohol may also be expected to serve as a risk factor in autoimmune diseases. However, emerging data from human and animal studies suggest that alcohol may in fact be protective in autoimmune diseases. These studies point toward alcohol's complex dose-dependent relationship in autoimmune diseases as well as potential modulation by duration and type of alcohol consumption, cultural background and sex. In this review, we will explore alcohol's pro- and anti-inflammatory properties in human and animal autoimmune diseases, including autoimmune diabetes, thyroid disease, systemic lupus erythematosus, rheumatoid arthritis, experimental autoimmune encephalomyelitis and multiple sclerosis. We will also discuss potential mechanisms of alcohol's anti-inflammatory effects mediated by the gut microbiome.
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Affiliation(s)
- Blaine Caslin
- Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, United States
| | - Kailey Mohler
- Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, United States
| | - Shreya Thiagarajan
- Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, United States
| | - Esther Melamed
- Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, United States
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33
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Fulop T, Tripathi S, Rodrigues S, Desroches M, Bunt T, Eiser A, Bernier F, Beauregard PB, Barron AE, Khalil A, Plotka A, Hirokawa K, Larbi A, Bocti C, Laurent B, Frost EH, Witkowski JM. Targeting Impaired Antimicrobial Immunity in the Brain for the Treatment of Alzheimer's Disease. Neuropsychiatr Dis Treat 2021; 17:1311-1339. [PMID: 33976546 PMCID: PMC8106529 DOI: 10.2147/ndt.s264910] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/16/2021] [Indexed: 12/12/2022] Open
Abstract
Alzheimer's disease (AD) is the most common form of dementia and aging is the most common risk factor for developing the disease. The etiology of AD is not known but AD may be considered as a clinical syndrome with multiple causal pathways contributing to it. The amyloid cascade hypothesis, claiming that excess production or reduced clearance of amyloid-beta (Aβ) and its aggregation into amyloid plaques, was accepted for a long time as the main cause of AD. However, many studies showed that Aβ is a frequent consequence of many challenges/pathologic processes occurring in the brain for decades. A key factor, sustained by experimental data, is that low-grade infection leading to production and deposition of Aβ, which has antimicrobial activity, precedes the development of clinically apparent AD. This infection is chronic, low grade, largely clinically silent for decades because of a nearly efficient antimicrobial immune response in the brain. A chronic inflammatory state is induced that results in neurodegeneration. Interventions that appear to prevent, retard or mitigate the development of AD also appear to modify the disease. In this review, we conceptualize further that the changes in the brain antimicrobial immune response during aging and especially in AD sufferers serve as a foundation that could lead to improved treatment strategies for preventing or decreasing the progression of AD in a disease-modifying treatment.
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Affiliation(s)
- Tamas Fulop
- Research Center on Aging, Geriatric Division, Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Shreyansh Tripathi
- Cluster Innovation Centre, North Campus, University of Delhi, Delhi, 110007, India.,Ikerbasque, The Basque Foundation for Science, Bilbao, Spain
| | - Serafim Rodrigues
- Ikerbasque, The Basque Foundation for Science, Bilbao, Spain.,Mathematical Computational and Experimental Neuroscience (MCEN), BCAM - The Basque Center for Applied Mathematics, Bilbao, Spain
| | - Mathieu Desroches
- MathNeuro Team, Inria Sophia Antipolis Méditerranée, Sophia Antipolis, France.,Department of Mathematics, Université Côte d'Azur, Nice, France
| | - Ton Bunt
- Izumi Biosciences, Inc., Lexington, MA, USA
| | - Arnold Eiser
- Leonard Davis Institute, University of Pennsylvania, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Francois Bernier
- Morinaga Milk Industry Co., Ltd, Next Generation Science Institute, Kanagawa, Japan
| | - Pascale B Beauregard
- Department of Biology, Faculty of Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Annelise E Barron
- Department of Bioengineering, Stanford School of Medicine, Stanford, CA, USA
| | - Abdelouahed Khalil
- Research Center on Aging, Geriatric Division, Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Adam Plotka
- Department of Pathophysiology, Medical University of Gdansk, Gdansk, Poland
| | - Katsuiku Hirokawa
- Institute of Health and Life Science, Tokyo Med. Dent. University, Tokyo and Nito-Memory Nakanosogo Hospital, Department of Pathology, Tokyo, Japan
| | - Anis Larbi
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (ASTAR), Immunos Building, Biopolis, Singapore, Singapore
| | - Christian Bocti
- Research Center on Aging, Department of Medicine, Division of Neurology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Benoit Laurent
- Research Center on Aging, Department of Biochemistry and Functional Genomics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Eric H Frost
- Department of Microbiology and Infectious Diseases, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Jacek M Witkowski
- Department of Pathophysiology, Medical University of Gdansk, Gdansk, Poland
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34
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Chang H, Cong H, Wang H, Du L, Tian DC, Ma Y, Xu Y, Wang Y, Yin L, Zhang X. Thymic Involution and Altered Naive CD4 T Cell Homeostasis in Neuromyelitis Optica Spectrum Disorder. Front Immunol 2021; 12:645277. [PMID: 34335563 PMCID: PMC8322781 DOI: 10.3389/fimmu.2021.645277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 06/30/2021] [Indexed: 12/17/2022] Open
Abstract
Circulating T helper cells with a type 17-polarized phenotype (TH17) and expansion of aquaporin-4 (AQP4)-specific T cells are frequently observed in patients with neuromyelitis optica spectrum disorder (NMOSD). However, naive T cell populations, which give rise to T helper cells, and the primary site of T cell maturation, namely the thymus, have not been studied in these patients. Here, we report the alterations of naive CD4 T cell homeostasis and the changes in thymic characteristics in NMOSD patients. Flow cytometry was performed to investigate the naive CD4+ T cell subpopulations in 44 NMOSD patients and 21 healthy controls (HC). On immunological evaluation, NMOSD patients exhibited increased counts of CD31+thymic naive CD4+ T cells and CD31-cental naive CD4+ T cells along with significantly higher fraction and absolute counts of peripheral blood CD45RA+ CD62L+ naive CD4+ T cells. Chest computed tomography (CT) images of 60 NMOSD patients and 65 HCs were retrospectively reviewed to characterize the thymus in NMOSD. Thymus gland of NMOSD patients exhibited unique morphological characteristics with respect to size, shape, and density. NMOSD patients showed exacerbated age-dependent thymus involution than HC, which showed a significant association with disease duration. These findings broaden our understanding of the immunological mechanisms that drive severe disease in NMOSD.
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Affiliation(s)
- Haoxiao Chang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Hengri Cong
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Huabing Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Li Du
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - De-Cai Tian
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yuetao Ma
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yun Xu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yupeng Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Linlin Yin
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Advanced Innovation Center for Human Brain Protection, Beijing, China
- *Correspondence: Linlin Yin, ; Xinghu Zhang,
| | - Xinghu Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- *Correspondence: Linlin Yin, ; Xinghu Zhang,
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35
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Attaf M, Roider J, Malik A, Rius Rafael C, Dolton G, Prendergast AJ, Leslie A, Ndung'u T, Kløverpris HN, Sewell AK, Goulder PJ. Cytomegalovirus-Mediated T Cell Receptor Repertoire Perturbation Is Present in Early Life. Front Immunol 2020; 11:1587. [PMID: 33101265 PMCID: PMC7554308 DOI: 10.3389/fimmu.2020.01587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/15/2020] [Indexed: 12/14/2022] Open
Abstract
Human cytomegalovirus (CMV) is a highly prevalent herpesvirus, particularly in sub-Saharan Africa, where it is endemic from infancy. The T cell response against CMV is important in keeping the virus in check, with CD8 T cells playing a major role in the control of CMV viraemia. Human leukocyte antigen (HLA) B*44:03-positive individuals raise a robust response against the NEGVKAAW (NW8) epitope, derived from the immediate-early-2 (IE-2) protein. We previously showed that the T cell receptor (TCR) repertoire raised against the NW8-HLA-B*44:03 complex was oligoclonal and characterised by superdominant clones, which were shared amongst unrelated individuals (i.e., "public"). Here, we address the question of how stable the CMV-specific TCR repertoire is over the course of infection, and whether substantial differences are evident in TCR repertoires in children, compared with adults. We present a longitudinal study of four HIV/CMV co-infected mother-child pairs, who in each case express HLA-B*44:03 and make responses to the NW8 epitope, and analyse their TCR repertoire over a period spanning more than 10 years. Using high-throughput sequencing, the paediatric CMV-specific repertoire was found to be highly diverse. In addition, paediatric repertoires were remarkably similar to adults, with public TCR responses being shared amongst children and adults alike. The CMV-specific repertoire in both adults and children displayed strong fluctuations in TCR clonality and repertoire architecture over time. Previously characterised superdominant clonotypes were readily identifiable in the children at high frequency, suggesting that the distortion of the CMV-specific repertoire is incurred as a direct result of CMV infection rather than a product of age-related "memory inflation." Early distortion of the TCR repertoire was particularly apparent in the case of the TCR-β chain, where oligoclonality was low in children and positively correlated with age, a feature we did not observe for TCR-α. This discrepancy between TCR-α and -β chain repertoire may reflect differential contribution to NW8 recognition. Altogether, the results of the present study provide insight into the formation of the TCR repertoire in early life and pave the way to better understanding of CD8 T cell responses to CMV at the molecular level.
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MESH Headings
- Adolescent
- Adult
- Age Factors
- Antigens, Viral/immunology
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Child
- Child, Preschool
- Coinfection
- Cytomegalovirus/immunology
- Cytomegalovirus Infections/immunology
- Cytomegalovirus Infections/metabolism
- Cytomegalovirus Infections/virology
- Epitopes, T-Lymphocyte/chemistry
- Epitopes, T-Lymphocyte/immunology
- Female
- HIV Infections/immunology
- HIV Infections/virology
- HLA Antigens/immunology
- High-Throughput Nucleotide Sequencing
- Humans
- Infant
- Leukocytes, Mononuclear/immunology
- Leukocytes, Mononuclear/metabolism
- Peptides/chemistry
- Peptides/immunology
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/metabolism
- T-Cell Antigen Receptor Specificity
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Viral Load
- Young Adult
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Affiliation(s)
- Meriem Attaf
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
- Systems Immunity Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Julia Roider
- Human Immunodeficiency Virus Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Africa Health Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- German Centre for Infection Research, Munich, Germany
- Department of Infectious Diseases, Ludwig-Maximilians-University, Munich, Germany
| | - Amna Malik
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Cristina Rius Rafael
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
- Systems Immunity Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Garry Dolton
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
- Systems Immunity Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Andrew J. Prendergast
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
- Centre for Genomics and Child Health, Blizard Institute, Queen Mary University of London, London, United Kingdom
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Alasdair Leslie
- Africa Health Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Infection and Immunity, University College London, London, United Kingdom
| | - Thumbi Ndung'u
- Human Immunodeficiency Virus Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Africa Health Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Infection and Immunity, University College London, London, United Kingdom
- The Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, Boston, MA, United States
- Virology and Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Henrik N. Kløverpris
- Africa Health Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Infection and Immunity, University College London, London, United Kingdom
| | - Andrew K. Sewell
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom
- Systems Immunity Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Philip J. Goulder
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- The Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, Boston, MA, United States
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36
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Courivaud C, Bamoulid J, Crepin T, Gaiffe E, Laheurte C, Saas P, Ducloux D. Pre-transplant Thymic Function Predicts Is Associated With Patient Death After Kidney Transplantation. Front Immunol 2020; 11:1653. [PMID: 32903778 PMCID: PMC7438875 DOI: 10.3389/fimmu.2020.01653] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/22/2020] [Indexed: 12/13/2022] Open
Abstract
Accelerated thymic involution is a main feature of end-stage renal disease (ESRD)-associated immune senescence. Recent evidences suggest that ESRD-associated immune senescence is associated with adverse outcomes in dialysis patients. However, no study focused on the association between pre-transplant thymic function and patient survival after transplantation. We conducted a prospective, multicenter study to assess whether pre-transplant thymic function measured by recent thymic emigrants (RTE) may predict death after first kidney transplantation. Results were tested in a validation cohort. Nine hundred and sixty-seven incident kidney transplant recipients were included in the prospective study. Mean follow up was 5.1 + 2.9 years. Eighty two patients (8.5%) died during follow up. Lower RTE levels were associated with a higher risk of death (2.53; 95%CI, 1.54–4.39 for each decrease of 1 log in RTE; p < 0.001). Cancer-related death was particularly increased in patients with low RTE levels (4.23; 95%CI, 1.43–12.13; p = 0.007). One hundred and thirty-six patients having received a first kidney transplantation were included in the validation cohort. Lower TREC levels were associated with higher risk of death (1.90; 95%CI, 1.11–3.51 for each decrease of 1 log in RTE; p = 0.025). RTE were not associated with death-censored graft loss. Pre-transplant thymic function is strongly associated with death after transplantation. Attempt to reverse ESRD-related thymic loss may prevent premature death.
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Affiliation(s)
- Cécile Courivaud
- Inserm, UMR1098, Federation Hospitalo-Universitaire INCREASE, Besançon, France.,Univ. Bourgogne Franche-Comté, Faculté de Médecine et de Pharmacie, LabEx LipSTIC, Besançon, France.,Structure Fédérative de Recherche, SFR FED4234, Besançon, France.,CHU Besançon, Department of Nephrology, Dialysis, and Renal Transplantation, Besançon, France
| | - Jamal Bamoulid
- Inserm, UMR1098, Federation Hospitalo-Universitaire INCREASE, Besançon, France.,Univ. Bourgogne Franche-Comté, Faculté de Médecine et de Pharmacie, LabEx LipSTIC, Besançon, France.,Structure Fédérative de Recherche, SFR FED4234, Besançon, France.,CHU Besançon, Department of Nephrology, Dialysis, and Renal Transplantation, Besançon, France
| | - Thomas Crepin
- Inserm, UMR1098, Federation Hospitalo-Universitaire INCREASE, Besançon, France.,Univ. Bourgogne Franche-Comté, Faculté de Médecine et de Pharmacie, LabEx LipSTIC, Besançon, France.,Structure Fédérative de Recherche, SFR FED4234, Besançon, France.,CHU Besançon, Department of Nephrology, Dialysis, and Renal Transplantation, Besançon, France
| | - Emilie Gaiffe
- CHU Besançon, Department of Nephrology, Dialysis, and Renal Transplantation, Besançon, France.,CHU Besançon, CIC Biothérapie, INSERM CIC1431, Besançon, France
| | - Caroline Laheurte
- Inserm, UMR1098, Federation Hospitalo-Universitaire INCREASE, Besançon, France.,EFS Bourgogne Franche-Comté, Plateforme de Biomonitoring, CIC 1431/UMR1098, Besançon, France
| | - Philippe Saas
- Inserm, UMR1098, Federation Hospitalo-Universitaire INCREASE, Besançon, France.,Univ. Bourgogne Franche-Comté, Faculté de Médecine et de Pharmacie, LabEx LipSTIC, Besançon, France.,Structure Fédérative de Recherche, SFR FED4234, Besançon, France.,CHU Besançon, CIC Biothérapie, INSERM CIC1431, Besançon, France.,EFS Bourgogne Franche-Comté, Plateforme de Biomonitoring, CIC 1431/UMR1098, Besançon, France
| | - Didier Ducloux
- Inserm, UMR1098, Federation Hospitalo-Universitaire INCREASE, Besançon, France.,Univ. Bourgogne Franche-Comté, Faculté de Médecine et de Pharmacie, LabEx LipSTIC, Besançon, France.,Structure Fédérative de Recherche, SFR FED4234, Besançon, France.,CHU Besançon, Department of Nephrology, Dialysis, and Renal Transplantation, Besançon, France.,CHU Besançon, CIC Biothérapie, INSERM CIC1431, Besançon, France
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37
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The Link between Chronic Stress and Accelerated Aging. Biomedicines 2020; 8:biomedicines8070198. [PMID: 32645916 PMCID: PMC7400286 DOI: 10.3390/biomedicines8070198] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 06/29/2020] [Accepted: 07/03/2020] [Indexed: 12/11/2022] Open
Abstract
People exposed to chronic stress age rapidly. The telomeres in their cells of all types shorten faster. Inflammation is another important feature of stress that, along with aging, accounts for the phenomenon of inflammaging. In addition to aging itself, inflammaging can contribute to the development of several pathologies, including atherosclerosis, diabetes, hypertension, and others. Oxidative stress is one of the main mechanisms related to stress. Oxidative stress is caused by the over-production of reactive oxygen species (ROS) that can damage various tissues. The main source of ROS is mitochondria. Being suppressed by mitochondrial mutations, mitophagy can aggravate the situation. In this case, the aging-specific pro-inflammatory changes are amplified. It happens because of the inability of cells to maintain the normal state of mitochondria. Macrophages are the crucial element of the innate immunity associated with the chronic inflammation and, subsequently, with the inflammaging. In this review, we focus on the therapy approaches potentially reducing the deleterious effects of oxidative stress. These include stimulation of mitophagy, activation of mitochondrial uncoupling, induction of the expression of the telomerase catalytic component gene, and use of antioxidants. Any method reducing oxidative stress should improve post-traumatic stress disorder.
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Abstract
T-cell immunity undergoes a complex and continuous remodeling with aging. Understanding those dynamics is essential in refining immunosuppression. Aging is linked to phenotypic and metabolic changes in T-cell immunity, many resulting into impaired function and compromised effectiveness. Those changes may impact clinical immunosuppression with evidences suggesting age-specific efficacies of some (CNI and mammalian target of rapamycin inhibitors) but not necessarily all immunosuppressants. Metabolic changes of T cells with aging have only recently been appreciated and may provide novel ways of immunosuppression. Here, we provide an update on changes of T-cell immunity in aging.
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Molecular Mechanisms of Premature Aging in Hemodialysis: The Complex Interplay Between Innate and Adaptive Immune Dysfunction. Int J Mol Sci 2020; 21:ijms21103422. [PMID: 32408613 PMCID: PMC7279398 DOI: 10.3390/ijms21103422] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/01/2020] [Accepted: 05/07/2020] [Indexed: 02/07/2023] Open
Abstract
Hemodialysis (HD) patient are known to be susceptible to a wide range of early and long-term complication such as chronic inflammation, infections, malnutrition, and cardiovascular disease that significantly affect the incidence of mortality. A large gap between the number of people with end-stage kidney disease (ESKD) and patients who received kidney transplantation has been identified. Therefore, there is a huge need to explore the underlying pathophysiology of HD complications in order to provide treatment guidelines. The immunological dysregulation, involving both the innate and adaptive response, plays a crucial role during the HD sessions and in chronic, maintenance treatments. Innate immune system mediators include the dysfunction of neutrophils, monocytes, and natural killer (NK) cells with signaling mediated by NOD-like receptor P3 (NLRP3) and Toll-like receptor 4 (TLR4); in addition, there is a significant activation of the complement system that is mediated by dialysis membrane-surfaces. These effectors induce a persistent, systemic, pro-inflammatory, and pro-coagulant milieu that has been described as inflammaging. The adaptive response, the imbalance in the CD4+/CD8+ T cell ratio, and the reduction of Th2 and regulatory T cells, together with an altered interaction with B lymphocyte by CD40/CD40L, have been mainly implicated in immune system dysfunction. Altogether, these observations suggest that intervention targeting the immune system in HD patients could improve morbidity and mortality. The purpose of this review is to expand our understanding on the role of immune dysfunction in both innate and adaptive response in patients undergoing hemodialysis treatment.
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Li B, Zhang K, Ye Y, Xing J, Wu Y, Ma Y, Li Y. Effects of Castration on miRNA, lncRNA, and mRNA Profiles in Mice Thymus. Genes (Basel) 2020; 11:genes11020147. [PMID: 32019071 PMCID: PMC7074395 DOI: 10.3390/genes11020147] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 01/16/2020] [Accepted: 01/28/2020] [Indexed: 12/22/2022] Open
Abstract
Thymic degeneration and regeneration are regulated by estrogen and androgen. Recent studies have found that long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) are involved in organ development. In this study, RNA sequencing (RNA-seq) results showed that ovariectomy significantly affected 333 lncRNAs, 51 miRNAs, and 144 mRNAs levels (p < 0.05 and |log2fold change| > 1), and orchiectomy significantly affected 165 lncRNAs, 165 miRNAs, and 208 mRNA levels in the thymus. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that differentially expressed genes (DEGs) were closely related to cell development and immunity. Next, we constructed two lncRNA–miRNA–mRNA networks using Cytoscape based on the targeting relationship between differentially expressed miRNAs (DEMs) and DEGs and differentially expressed lncRNAs (DELs) analyzed by TargetScan and miRanda. Besides, we screened DEGs that were significantly enriched in GO and in ceRNA networks to verify their expression in thymocytes and thymic epithelial cells (TECs). In addition, we analyzed the promoter sequences of DEGs, and identified 25 causal transcription factors. Finally, we constructed transcription factor-miRNA-joint target gene networks. In conclusion, this study reveals the effects of estrogen and androgen on the expression of miRNAs, lncRNAs, and mRNAs in mice thymus, providing new insights into the regulation of thymic development by gonadal hormones and non-coding RNAs.
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Affiliation(s)
- Bingxin Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.L.); (K.Z.); (J.X.); (Y.W.); (Y.M.)
| | - Kaizhao Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.L.); (K.Z.); (J.X.); (Y.W.); (Y.M.)
| | - Yaqiong Ye
- School of Life Science and Engineering, Foshan University, Foshan 528000, China;
| | - Jingjing Xing
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.L.); (K.Z.); (J.X.); (Y.W.); (Y.M.)
| | - Yingying Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.L.); (K.Z.); (J.X.); (Y.W.); (Y.M.)
| | - Yongjiang Ma
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.L.); (K.Z.); (J.X.); (Y.W.); (Y.M.)
| | - Yugu Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.L.); (K.Z.); (J.X.); (Y.W.); (Y.M.)
- Correspondence: or
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Bastos MF, Matias MDST, Alonso AC, Silva LCR, de Araújo AL, Silva PR, Benard G, Bocalini DS, Steven Baker J, Leme LEG. Moderate levels of physical fitness maintain telomere length in non-senescent T CD8+ cells of aged men. Clinics (Sao Paulo) 2020; 75:e1628. [PMID: 33174947 PMCID: PMC7605280 DOI: 10.6061/clinics/2020/e1628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 09/04/2020] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES Immunosenescence is an age-associated change characterized by a decreased immune response. Although physical activity has been described as fundamental for maintaining the quality of life, few studies have evaluated the effects of different levels of exercise on telomere length in aged populations. The present study aimed to analyze the effects of different levels of physical activity, classified by the Maximal oxygen consumption (VO2 max) values, on the telomere length of memory Cluster of differentiation (CD) CD4+(CD45ROneg and CD45RO+), effector CD8+CD28neg, and CD8+CD28+ T cells in aged individuals. METHODS Fifty-three healthy elderly men (aged 65-85 years) were included in this study. Their fitness level was classified according to the American College of Sports Medicine (ACSM) for VO2 max (mL/kg/min). Blood samples were obtained from all participants to analyze the percentage of CD3, CD4, CD8, CD28+, naïve, and subpopulations of memory T cells by using flow cytometry. Furthermore, using the Flow-FISH methodology, the CD4+CD45RO+, CD4+CD45ROneg, CD8+CD28+, and CD8+CD28negT cell telomere lengths were measured. RESULTS There was a greater proportion of effector memory T CD4+ cells and longer telomeres in CD8+CD28+ T cells in the moderate physical fitness group than in the other groups. There was a higher proportion of terminally differentiated memory effector T cells in the low physical fitness group. CONCLUSION A moderate physical activity may positively influence the telomere shortening of CD28+CD8+T cells. However, additional studies are necessary to evaluate the importance of this finding with regard to immune function responses in older men.
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Affiliation(s)
- Marta Ferreira Bastos
- Programa de Pos graduacao Stricto sensu em Ciencias do Envelhecimento, Departamento de Pos graduacao e Pesquisa, Universidade Sao Judas Tadeu, Sao Paulo, SP, BR
- *Corresponding author. E-mail:
| | - Manuella de Sousa Toledo Matias
- Grupo Ortogeriatrico, Instituto de Ortopedia e Traumotologia, Escola de Medicina, Universidade de Sao Paulo (FMUSP), Sao Paulo, SP, BR
| | - Angélica Castilho Alonso
- Programa de Pos graduacao Stricto sensu em Ciencias do Envelhecimento, Departamento de Pos graduacao e Pesquisa, Universidade Sao Judas Tadeu, Sao Paulo, SP, BR
- Grupo Ortogeriatrico, Instituto de Ortopedia e Traumotologia, Escola de Medicina, Universidade de Sao Paulo (FMUSP), Sao Paulo, SP, BR
| | - Léia Cristina Rodrigues Silva
- Laboratorio de Dermatologia e Imunodeficiencias, Divisao de Dermatologia, Hospital das Clinicas (HCFMUSP), Escola de Medicina, Sao Paulo, SP, BR
| | - Adriana Ladeira de Araújo
- Laboratorio de Dermatologia e Imunodeficiencias, Divisao de Dermatologia, Hospital das Clinicas (HCFMUSP), Escola de Medicina, Sao Paulo, SP, BR
| | - Paulo Roberto Silva
- Grupo Ortogeriatrico, Instituto de Ortopedia e Traumotologia, Escola de Medicina, Universidade de Sao Paulo (FMUSP), Sao Paulo, SP, BR
| | - Gil Benard
- Laboratorio de Dermatologia e Imunodeficiencias, Divisao de Dermatologia, Hospital das Clinicas (HCFMUSP), Escola de Medicina, Sao Paulo, SP, BR
| | - Danilo Sales Bocalini
- Laboratorio experimental de Fisiologia e Bioquimica, Centro de Esporte e Educacao Fisica da Universidade Federal do Espirito Santo, Vitoria, ES, BR
| | - Julien Steven Baker
- Department of Sport, Physical Education and Health, Hong Kong Baptist University, Hong Kong
| | - Luiz Eugênio Garcez Leme
- Grupo Ortogeriatrico, Instituto de Ortopedia e Traumotologia, Escola de Medicina, Universidade de Sao Paulo (FMUSP), Sao Paulo, SP, BR
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42
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[Premature immune senescence and chronic kidney disease: Update and perspectives]. Nephrol Ther 2019; 16:9-18. [PMID: 31848067 DOI: 10.1016/j.nephro.2019.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/12/2019] [Indexed: 12/14/2022]
Abstract
Immune senescence is associated with age-related diseases (i.e. infectious disease, cardiovascular diseases and cancers). Chronic kidney disease patients die prematurely when compared with general population, because of a higher occurrence of infections, cardiovascular events and cancer. These diseases are commonly observed in the elderly population and frequently associated with immune senescence. Indeed, chronic kidney disease causes a premature aging of the T lymphocyte compartment, widely related to a decrease in thymic function, a phenomenon that plays a key role in the onset of age-related diseases in chronic kidney disease patients. The degree of immune senescence also influences patients' outcome after renal transplantation, particularly the risk of acute rejection and infections. Partial reversion of pre-transplant immune senescence is observed for some renal transplant patients. In conclusion, to reduce the increasing incidence of morbidity and mortality of chronic kidney disease patients, a better knowledge of uremia-induced immune senescence would help to pave the way to build clinical studies and promote innovative therapeutic approaches. We believe that therapeutic reversion and immune senescence prevention approaches will be part of the management of chronic kidney disease patients in the future.
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Zhang T, Lv J, Tan Z, Wang B, Warden AR, Li Y, Jiang H, Li H, Ding X. Immunocyte Profiling Using Single-Cell Mass Cytometry Reveals EpCAM + CD4 + T Cells Abnormal in Colon Cancer. Front Immunol 2019; 10:1571. [PMID: 31354723 PMCID: PMC6629930 DOI: 10.3389/fimmu.2019.01571] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/24/2019] [Indexed: 12/19/2022] Open
Abstract
Colon cancer (CC) is one of the leading causes of cancer related mortality. Research over past decades have profoundly enhanced our understanding of immunotherapy, a major clinical accomplishment, and its potential role toward treating CC. However, studies investigating the expression of these immune checkpoints, such as epithelial cell adhesion molecule (EpCAM), programmed death-1 (PD-1), and programmed death-ligand 1 (PD-L1), by peripheral blood mononuclear cells (PBMCs) is lacking. Here, high-dimensional mass cytometry (CyTOF) is used to investigate immune alterations and promising immunotherapeutic targets expression by PBMCs of CC patients. Results reveal that expression of EpCAM and PD-L1 on CD4+ T cells significantly increased in patients with CC, compared with age- and sex- matching healthy controls and patients with colonic polyps. These differences are also validated in an independent patient cohort using flow cytometry. Further analysis revealed that EpCAM+ CD4+ T cells are PD-L1+ CCR5+ CCR6+. Immunofluorescence staining results demonstrate that the increase of EpCAM+ CD4+ T cells is also observed in tumor tissues, rather than para-cancerous tissues. To ascertain the functional disorders of the identified cell subset, phosphorylated signaling protein levels are assessed using imaging mass cytometry. Increases in pp38 MAPK and pMAPKAPK2 are observable, indicating abnormal activation of pp38 MAPK-pMAPKAPK2 signaling pathway. Results in this study indicate that EpCAM+ CD4+ T cells may play a role in CC development. Detailed knowledge on the functionality of EpCAM+ CD4+ T cells is of high translational relevance.
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Affiliation(s)
- Ting Zhang
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Junwei Lv
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ziyang Tan
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Boqian Wang
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Antony R Warden
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yiyang Li
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Jiang
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Li
- Department of General Surgery, Affiliated First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xianting Ding
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Shanghai, China
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A Mathematical Model of the Effects of Aging on Naive T Cell Populations and Diversity. Bull Math Biol 2019; 81:2783-2817. [PMID: 31201663 DOI: 10.1007/s11538-019-00630-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 06/06/2019] [Indexed: 10/26/2022]
Abstract
The human adaptive immune response is known to weaken in advanced age, resulting in increased severity of pathogen-born illness, poor vaccine efficacy, and a higher prevalence of cancer in the elderly. Age-related erosion of the T cell compartment has been implicated as a likely cause, but the underlying mechanisms driving this immunosenescence have not been quantitatively modeled and systematically analyzed. T cell receptor diversity, or the extent of pathogen-derived antigen responsiveness of the T cell pool, is known to diminish with age, but inherent experimental difficulties preclude accurate analysis on the full organismal level. In this paper, we formulate a mechanistic mathematical model of T cell population dynamics on the immunoclonal subpopulation level, which provides quantitative estimates of diversity. We define different estimates for diversity that depend on the individual number of cells in a specific immunoclone. We show that diversity decreases with age primarily due to diminished thymic output of new T cells and the resulting overall loss of small immunoclones.
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45
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Philippe M, Gatterer H, Burtscher M, Weinberger B, Keller M, Grubeck-Loebenstein B, Fleckenstein J, Alack K, Krüger K. Concentric and Eccentric Endurance Exercise Reverse Hallmarks of T-Cell Senescence in Pre-diabetic Subjects. Front Physiol 2019; 10:684. [PMID: 31214051 PMCID: PMC6558034 DOI: 10.3389/fphys.2019.00684] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 05/13/2019] [Indexed: 11/23/2022] Open
Abstract
The peripheral T-cell pool undergoes a striking age associated remodeling which is accelerated by progressive insulin resistance. Exercise training is known to delay several aspects of T-cell senescence. The purpose of the current study was to investigate the effect of 3 weeks regular concentric or eccentric endurance exercise training on the composition of the T-cell compartment in pre-diabetic subjects. Sixteen male older adults with impaired glucose tolerance were recruited and performed either concentric exercise (CE) or eccentric exercise (EE) walking 3 times a week for 3 weeks. Fasting venous blood sampling was performed before training and after the training intervention. Various T-cell subpopulations were analyzed by flow cytometry. We did not find significant time × group effects (interaction) but found several significant time effects for cell type ratios and cell subsets proportions. There was an increase of the CD4+/CD8+ (0.55 ± 0.85%; p = 0.033) and CD4+/CD3+ ratio (5.63 ± 8.44%; p = 0.018) and a decrease of the CD8+/CD3+ ratio (-0.95 ± 1.64%; p = 0.049) after training. We found proportional increases of CD4+/CCR7+/CD45RO+ central memory cells (5.02 ± 7.68%; p = 0.030), naïve CD8+/CCR7+/CD45RO- (3.00 ± 6.68%; p = 0.047) and CD8+/CCR7+/CD45RO+ central memory cells (3.01 ± 3.70%; p = 0.009), while proportions of CD4+/CCR7-/CD45RO- TEMRA cells (-2.17 ± 4.66%; p = 0.012), CD8+/CCR7-/CD45RO- TEMRA cells (-5.11 ± 7.02%; p = 0.018) and CD16+ cells (-4.67 ± 6.45%; p = 0.016) decreased after training. 3 weeks of either CE or EE were effective in reversing hallmarks of T-cell senescence in pre-diabetic subjects. It is suggested that exercise stimulates production and mobilization of naïve T-cells, while differentiated TEMRA cells might disappear by apoptosis.
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Affiliation(s)
- Marc Philippe
- Department of Sports Medicine, Institute of Sports Sciences, Giessen University, Giessen, Germany
- Department of Sport Science, Medical Section, University of Innsbruck, Innsbruck, Austria
- Department of Health Promotion and Prevention, Swiss Lung Association, St. Gallen, Switzerland
| | - Hannes Gatterer
- Department of Sport Science, Medical Section, University of Innsbruck, Innsbruck, Austria
- Institute of Mountain Emergency Medicine, EURAC Research, Bozen, Italy
| | - Martin Burtscher
- Department of Sport Science, Medical Section, University of Innsbruck, Innsbruck, Austria
| | - Birgit Weinberger
- Institute for Biomedical Aging Research, University of Innsbruck, Innsbruck, Austria
| | - Michael Keller
- Institute for Biomedical Aging Research, University of Innsbruck, Innsbruck, Austria
| | | | - Johannes Fleckenstein
- Department of Sports Medicine, Institute of Sports Sciences, Giessen University, Giessen, Germany
| | - Katharina Alack
- Department of Sports Medicine, Institute of Sports Sciences, Giessen University, Giessen, Germany
| | - Karsten Krüger
- Department Exercise and Health, Institute of Sports Science, Leibniz University Hannover, Hanover, Germany
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Sovran B, Hugenholtz F, Elderman M, Van Beek AA, Graversen K, Huijskes M, Boekschoten MV, Savelkoul HFJ, De Vos P, Dekker J, Wells JM. Age-associated Impairment of the Mucus Barrier Function is Associated with Profound Changes in Microbiota and Immunity. Sci Rep 2019; 9:1437. [PMID: 30723224 PMCID: PMC6363726 DOI: 10.1038/s41598-018-35228-3] [Citation(s) in RCA: 129] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 10/16/2018] [Indexed: 02/07/2023] Open
Abstract
Aging significantly increases the vulnerability to gastrointestinal (GI) disorders but there are few studies investigating the key factors in aging that affect the GI tract. To address this knowledge gap, we used 10-week- and 19-month-old litter-mate mice to investigate microbiota and host gene expression changes in association with ageing. In aged mice the thickness of the colonic mucus layer was reduced about 6-fold relative to young mice, and more easily penetrable by luminal bacteria. This was linked to increased apoptosis of goblet cells in the upper part of the crypts. The barrier function of the small intestinal mucus was also compromised and the microbiota were frequently observed in contact with the villus epithelium. Antimicrobial Paneth cell factors Ang4 and lysozyme were expressed in significantly reduced amounts. These barrier defects were accompanied by major changes in the faecal microbiota and significantly decreased abundance of Akkermansia muciniphila which is strongly and negatively affected by old age in humans. Transcriptomics revealed age-associated decreases in the expression of immunity and other genes in intestinal mucosal tissue, including decreased T cell-specific transcripts and T cell signalling pathways. The physiological and immunological changes we observed in the intestine in old age, could have major consequences beyond the gut.
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Affiliation(s)
- Bruno Sovran
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Cell Biology and Immunology Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Floor Hugenholtz
- Laboratory of Microbiology, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Marlies Elderman
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Adriaan A Van Beek
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Cell Biology and Immunology Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Katrine Graversen
- Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Myrte Huijskes
- Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Mark V Boekschoten
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Division of Human Nutrition, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Huub F J Savelkoul
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Cell Biology and Immunology Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Paul De Vos
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan Dekker
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Jerry M Wells
- Top Institute Food and Nutrition, Wageningen, The Netherlands. .,Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands.
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47
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Thompson HL, Smithey MJ, Uhrlaub JL, Jeftić I, Jergović M, White SE, Currier N, Lang AM, Okoye A, Park B, Picker LJ, Surh CD, Nikolich-Žugich J. Lymph nodes as barriers to T-cell rejuvenation in aging mice and nonhuman primates. Aging Cell 2019; 18:e12865. [PMID: 30430748 PMCID: PMC6351843 DOI: 10.1111/acel.12865] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/04/2018] [Accepted: 09/27/2018] [Indexed: 01/16/2023] Open
Abstract
In youth, thymic involution curtails production of new naïve T cells, placing the onus of T-cell maintenance upon secondary lymphoid organs (SLO). This peripheral maintenance preserves the size of the T-cell pool for much of the lifespan, but wanes in the last third of life, leading to a dearth of naïve T cells in blood and SLO, and contributing to suboptimal immune defense. Both keratinocyte growth factor (KGF) and sex steroid ablation (SSA) have been shown to transiently increase the size and cellularity of the old thymus. It is less clear whether this increase can improve protection of old animals from infectious challenge. Here, we directly measured the extent to which thymic rejuvenation benefits the peripheral T-cell compartment of old mice and nonhuman primates. Following treatment of old animals with either KGF or SSA, we observed robust rejuvenation of thymic size and cellularity, and, in a reporter mouse model, an increase in recent thymic emigrants (RTE) in the blood. However, few RTE were found in the spleen and even fewer in the lymph nodes, and SSA-treated mice showed no improvement in immune defense against West Nile virus. In parallel, we found increased disorganization and fibrosis in old LN of both mice and nonhuman primates. These results suggest that SLO defects with aging can negate the effects of successful thymic rejuvenation in immune defense.
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Affiliation(s)
- Heather L. Thompson
- Department of Immunobiology; University of Arizona College of Medicine-Tucson; Tucson Arizona
- Arizona Center on Aging; University of Arizona College of Medicine-Tucson; Tucson Arizona
| | - Megan J. Smithey
- Department of Immunobiology; University of Arizona College of Medicine-Tucson; Tucson Arizona
- Arizona Center on Aging; University of Arizona College of Medicine-Tucson; Tucson Arizona
| | - Jennifer L. Uhrlaub
- Department of Immunobiology; University of Arizona College of Medicine-Tucson; Tucson Arizona
- Arizona Center on Aging; University of Arizona College of Medicine-Tucson; Tucson Arizona
| | - Ilija Jeftić
- Department of Immunobiology; University of Arizona College of Medicine-Tucson; Tucson Arizona
- Arizona Center on Aging; University of Arizona College of Medicine-Tucson; Tucson Arizona
| | - Mladen Jergović
- Department of Immunobiology; University of Arizona College of Medicine-Tucson; Tucson Arizona
- Arizona Center on Aging; University of Arizona College of Medicine-Tucson; Tucson Arizona
| | - Sarah E. White
- Department of Immunobiology; University of Arizona College of Medicine-Tucson; Tucson Arizona
- Arizona Center on Aging; University of Arizona College of Medicine-Tucson; Tucson Arizona
- Honors College; University of Arizona; Tucson Arizona
| | - Noreen Currier
- Vaccine and Gene Therapy Institute; Oregon Health and Science University; Beaverton Oregon
- Oregon National Primate Research Center; Beaverton Oregon
| | - Anna M. Lang
- Vaccine and Gene Therapy Institute; Oregon Health and Science University; Beaverton Oregon
- Oregon National Primate Research Center; Beaverton Oregon
| | - Afam Okoye
- Vaccine and Gene Therapy Institute; Oregon Health and Science University; Beaverton Oregon
- Oregon National Primate Research Center; Beaverton Oregon
| | - Byung Park
- Knight Cancer Center; Oregon Health and Science University; Portland Oregon
| | - Louis J. Picker
- Vaccine and Gene Therapy Institute; Oregon Health and Science University; Beaverton Oregon
- Oregon National Primate Research Center; Beaverton Oregon
| | - Charles D. Surh
- Academy of Immunology and Microbiology; Institute for Basic Science; Pohang South Korea
- Department of Integrative Biosciences and Biotechnology; Pohang University of Science and Technology; Pohang South Korea
- Division of Developmental Immunology; La Jolla Institute for Allergy and Immunology; California
| | - Janko Nikolich-Žugich
- Department of Immunobiology; University of Arizona College of Medicine-Tucson; Tucson Arizona
- Arizona Center on Aging; University of Arizona College of Medicine-Tucson; Tucson Arizona
- Oregon National Primate Research Center; Beaverton Oregon
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48
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Fulop T, Witkowski JM, Olivieri F, Larbi A. The integration of inflammaging in age-related diseases. Semin Immunol 2018; 40:17-35. [DOI: 10.1016/j.smim.2018.09.003] [Citation(s) in RCA: 177] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 09/20/2018] [Accepted: 09/24/2018] [Indexed: 02/07/2023]
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49
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Lymphocyte Counts are Dynamic and Associated with Survival after Transcatheter Aortic Valve Replacement. STRUCTURAL HEART-THE JOURNAL OF THE HEART TEAM 2018. [DOI: 10.1080/24748706.2018.1522680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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50
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Chronic Infections: A Possible Scenario for Autophagy and Senescence Cross-Talk. Cells 2018; 7:cells7100162. [PMID: 30308990 PMCID: PMC6210027 DOI: 10.3390/cells7100162] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/04/2018] [Accepted: 10/07/2018] [Indexed: 02/07/2023] Open
Abstract
Multiple tissues and systems in the organism undergo modifications during aging due to an accumulation of damaged proteins, lipids, and genetic material. To counteract this process, the cells are equipped with specific mechanisms, such as autophagy and senescence. Particularly, the immune system undergoes a process called immunosenescence, giving rise to a chronic inflammatory status of the organism, with a decreased ability to counteract antigens. The obvious result of this process is a reduced defence capacity. Currently, there is evidence that some pathogens are able to accelerate the immunosenescence process for their own benefit. Although to date numerous reports show the autophagy–senescence relationship, or the connection between pathogens with autophagy or senescence, the link between the three actors remains unexplored. In this review, we have summarized current knowledge about important issues related to aging, senescence, and autophagy.
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