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Goleij P, Rahimi M, Pourshahroudi M, Tabari MAK, Muhammad S, Suteja RC, Daglia M, Majma Sanaye P, Hadipour M, Khan H, Sadeghi P. The role of IL-2 cytokine family in asthma. Cytokine 2024; 180:156638. [PMID: 38761716 DOI: 10.1016/j.cyto.2024.156638] [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: 03/09/2024] [Revised: 04/25/2024] [Accepted: 05/02/2024] [Indexed: 05/20/2024]
Abstract
BACKGROUND The interleukin-2 (IL-2) family of cytokines, including IL-2, IL-4, IL-7, IL-9, IL-15, and IL-21, are pivotal regulators of the immune response, impacting both innate and adaptive immunity. Understanding their molecular characteristics, receptor interactions, and signalling pathways is essential for elucidating their roles in health and disease. OBJECTIVES This review provides a comprehensive overview of the IL-2 family of cytokines, highlighting their molecular biology, receptor interactions, and signalling mechanisms. Furthermore, it explores the involvement of IL-2 family cytokines in the pathogenesis of chronic respiratory diseases, with a specific focus on chronic obstructive pulmonary disease (COPD) and asthma. METHODS A thorough literature review was conducted to gather insights into the molecular biology, receptor interactions, and signalling pathways of IL-2 family cytokines. Additionally, studies investigating the roles of these cytokines in chronic respiratory diseases, particularly COPD and asthma, were analysed to discern their implications in wider pathophysiology of disease. RESULTS IL-2 family cytokines exert pleiotropic effects on immune cells, modulating cellular proliferation, differentiation, and survival. Dysregulation of IL-2 family cytokines has been implicated in the pathogenesis of chronic respiratory illnesses, including COPD and asthma. Elevated levels of IL-2 and IL-9 have been associated with disease severity in COPD, while IL-4 and IL-9 play crucial roles in asthma pathogenesis by promoting airway inflammation and remodelling. CONCLUSION Understanding the intricate roles of IL-2 family cytokines in chronic respiratory diseases provides valuable insights into potential therapeutic targets for these conditions. Targeting specific cytokines or their receptors may offer novel treatment modalities to attenuate disease progression and improve clinical outcomes in patients with COPD and asthma.
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Affiliation(s)
- Pouya Goleij
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran; Immunology Board for Transplantation and Cell-Based Therapeutics (ImmunoTACT), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Mohammad Rahimi
- Student Research Committee, School of Medicine, Mazandaran University of Medical Sciences, Mazandaran, Iran.
| | - Motahareh Pourshahroudi
- Department of Public Health, Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, United Kingdom.
| | - Mohammad Amin Khazeei Tabari
- Student Research Committee, School of Medicine, Mazandaran University of Medical Sciences, Mazandaran, Iran; Network of Interdisciplinarity in Neonates and Infants (NINI), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Syed Muhammad
- Farooqia College of Pharmacy, Mysuru, Karnataka, India.
| | | | - Maria Daglia
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China.
| | | | - Mahboube Hadipour
- Department of Biochemistry, School of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
| | - Haroon Khan
- Department of Pharmacy, Faculty of Chemical and Life Sciences, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan.
| | - Parniyan Sadeghi
- Network of Interdisciplinarity in Neonates and Infants (NINI), Universal Scientific Education and Research Network (USERN), Tehran, Iran; School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Lima-Silva ML, Torres KCL, Mambrini JVDM, Brot NC, Santos SO, Martins-Filho OA, Teixeira-Carvalho A, Lima-Costa MF, Peixoto SV. A nationwide study on immunosenescence biomarkers profile in older adults: ELSI-Brazil. Exp Gerontol 2024; 191:112433. [PMID: 38621429 DOI: 10.1016/j.exger.2024.112433] [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: 01/17/2024] [Revised: 03/19/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024]
Abstract
Immunosenescence is a phenomenon caused by changes in the immune system, and part of these changes involves an increase in circulating immunological biomarkers, a process known as "Inflammaging." Inflammaging can be associated with many diseases related to older people. As the older population continues to grow, understanding changes in the immune system becomes essential. While prior studies assessing these alterations have been conducted in countries with Caucasian populations, this investigation marks a pioneering effort. The object of the study is to describe for the first time that the distribution of cytokines, chemokines, and growth factors serum levels, assessed by Luminex platform, has been examined in a Brazilian population-based study of older adult females and males by age. Blood samples from 2111 participants (≥50 years old) were analyzed at the baseline (2015/2016) of the ELSI-Brazil study. The exploratory variables considered in the study were age, sex, educational level, residence area, geographic region, alcohol and smoking consumption, physical activity, and self-reported medical diagnoses of hypertension, diabetes, asthma, arthritis, and cancer. The association between serum biomarker levels and age was assessed by a quantile regression model adjusted in the total population and stratified by sex. The significance level considered in the analysis was 0.05. The mean age of the participants was 62.9 years, with a slight majority of female (52.7 %). Differences were found between the sexes in the median circulating levels of the CCL11, CXCL10, and FGF biomarkers. Eight biomarkers showed significant associations with age, including the pro-inflammatory CXCL10, TNF-α, IL-6, IL-17, and IL-2; and type 2/regulatory CCL11 and IL-4, showing positive associations, and anti-inflammatory IL-1Ra showing a negative association. The results suggest similar associations between the sexes, revealing an inflammatory profile characterized by types 1 and 2. Remarkably, these findings reinforce the concept of the Inflammaging process in Brazilian population. These findings add novel insights to about the immunosenescence aspects in middle-income countries and help define biomarkers capable of monitoring inflammation in older adults.
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Affiliation(s)
- Maria Luiza Lima-Silva
- Fundação Oswaldo Cruz, Instituto René Rachou, Núcleo de Estudos em Saúde Pública e Envelhecimento, Belo Horizonte, MG, Brazil; Fundação Oswaldo Cruz, Instituto René Rachou, Grupo Integrado de Pesquisas em Biomarcadores, Belo Horizonte, MG, Brazil; Fundação Oswaldo Cruz, Instituto René Rachou, Programa de Pós-Graduação em Saúde Coletiva, Belo Horizonte, MG, Brazil.
| | - Karen Cecília Lima Torres
- Fundação Oswaldo Cruz, Instituto René Rachou, Grupo Integrado de Pesquisas em Biomarcadores, Belo Horizonte, MG, Brazil; Universidade Edson Antônio Velano - UNIFENAS/MG, Brazil.
| | - Juliana Vaz de Melo Mambrini
- Fundação Oswaldo Cruz, Instituto René Rachou, Núcleo de Estudos em Saúde Pública e Envelhecimento, Belo Horizonte, MG, Brazil; Fundação Oswaldo Cruz, Instituto René Rachou, Programa de Pós-Graduação em Saúde Coletiva, Belo Horizonte, MG, Brazil
| | - Nathalia Coimbra Brot
- Fundação Oswaldo Cruz, Instituto René Rachou, Núcleo de Estudos em Saúde Pública e Envelhecimento, Belo Horizonte, MG, Brazil; Fundação Oswaldo Cruz, Instituto René Rachou, Grupo Integrado de Pesquisas em Biomarcadores, Belo Horizonte, MG, Brazil
| | - Sara Oliveira Santos
- Fundação Oswaldo Cruz, Instituto René Rachou, Núcleo de Estudos em Saúde Pública e Envelhecimento, Belo Horizonte, MG, Brazil
| | - Olindo Assis Martins-Filho
- Fundação Oswaldo Cruz, Instituto René Rachou, Grupo Integrado de Pesquisas em Biomarcadores, Belo Horizonte, MG, Brazil; Universidade do Estado do Amazonas - UEA, Brazil
| | - Andréa Teixeira-Carvalho
- Fundação Oswaldo Cruz, Instituto René Rachou, Grupo Integrado de Pesquisas em Biomarcadores, Belo Horizonte, MG, Brazil; Universidade do Estado do Amazonas - UEA, Brazil
| | - Maria Fernanda Lima-Costa
- Fundação Oswaldo Cruz, Instituto René Rachou, Núcleo de Estudos em Saúde Pública e Envelhecimento, Belo Horizonte, MG, Brazil
| | - Sérgio Viana Peixoto
- Fundação Oswaldo Cruz, Instituto René Rachou, Núcleo de Estudos em Saúde Pública e Envelhecimento, Belo Horizonte, MG, Brazil; Universidade Federal de Minas Gerais, Escola de Enfermagem, Departamento de Gestão em Saúde, Belo Horizonte, MG, Brazil.
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Zhang Y, Gu Z, Xu Y, He M, Gerber BS, Wang Z, Liu F, Peng C. Global scientific trends in healthy aging in the early 21st century: A data-driven scientometric and visualized analysis. Heliyon 2024; 10:e23405. [PMID: 38170072 PMCID: PMC10758827 DOI: 10.1016/j.heliyon.2023.e23405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/23/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
Background According to the World Health Organization (WHO), healthy aging is the process of developing and maintaining the functional capacity for health in old age. A rapidly growing number of research studies on healthy aging have been conducted worldwide. The purpose of this research work is to explore global scientific landscape of healthy aging research over the last 22 years. Methods Scientific publications on healthy aging from January 1, 2000 to October 11, 2022 were retrieved from the Web of Science Core Collection (WoSCC) on October 11, 2022. A total of 6420 publications were included in the scientometric analysis. VOSviewer (1.6.18) was used to conduct scientometric and visualized analysis. Results The publication growth rate was 35.68 from 2000 to 2021. The United States of America (USA) led in both productivity and citations. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA was prominent in terms of both the highest citation count and the highest average citation count. The National Institute on Aging (NIA) and Evans, Michele K. were the most influential organization and author, respectively. Research hotspots in healthy aging were identified based on the co-occurrence analysis of keywords: (1) physical activity and mental health of older adults; (2) diseases impacting the health and lifespan of older adults; and (3) neuroscience. Our analysis indicates that gut microbiota, loneliness, frailty, mitochondria and resilience were the emerging themes in healthy aging research. Conclusions The quantity of annual publications on healthy aging has rapidly increased over the past 22 years, especially during 2018-2021. This analysis identified the status, trends, hot topics, and frontiers of healthy aging research. These findings will help researchers quickly understand the global representation of healthy aging research, influence resource dissemination, promote international collaborations, guide policy formulation, and improve health services for older adults.
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Affiliation(s)
- Ye Zhang
- Department of Information Center, the First Hospital of China Medical University, Shenyang, China
- College of Health Management, China Medical University, Shenyang, China
| | - Zhengmin Gu
- Department of Information Center, the First Hospital of China Medical University, Shenyang, China
| | - Yingxin Xu
- Department of Information Center, the First Hospital of China Medical University, Shenyang, China
- College of Health Management, China Medical University, Shenyang, China
| | - Miao He
- Department of Information Center, the First Hospital of China Medical University, Shenyang, China
| | - Ben S. Gerber
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
| | - Zhongqing Wang
- Department of Information Center, the First Hospital of China Medical University, Shenyang, China
| | - Feifan Liu
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
| | - Cheng Peng
- Department of Ophthalmology, Fourth Affiliated Hospital of China Medical University, Shenyang, China
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Clever S, Schünemann LM, Armando F, Meyer zu Natrup C, Tuchel T, Tscherne A, Ciurkiewicz M, Baumgärtner W, Sutter G, Volz A. Protective MVA-ST Vaccination Robustly Activates T Cells and Antibodies in an Aged-Hamster Model for COVID-19. Vaccines (Basel) 2024; 12:52. [PMID: 38250865 PMCID: PMC10819389 DOI: 10.3390/vaccines12010052] [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: 11/27/2023] [Revised: 12/24/2023] [Accepted: 12/31/2023] [Indexed: 01/23/2024] Open
Abstract
Aging is associated with a decline in immune system functionality. So-called immunosenescence may impair the successful vaccination of elderly people. Thus, improved vaccination strategies also suitable for an aged immune system are required. Modified Vaccinia virus Ankara (MVA) is a highly attenuated and replication-deficient vaccinia virus that has been established as a multipurpose viral vector for vaccine development against various infections. We characterized a recombinant MVA expressing a prefusion-stabilized version of SARS-CoV-2 S protein (MVA-ST) in an aged-hamster model for COVID-19. Intramuscular MVA-ST immunization resulted in protection from disease and severe lung pathology. Importantly, this protection was correlated with a potent activation of SARS-CoV-2 specific T-cells and neutralizing antibodies. Our results suggest that MVA vector vaccines merit further evaluation in preclinical models to contribute to future clinical development as candidate vaccines in elderly people to overcome the limitations of age-dependent immunosenescence.
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Affiliation(s)
- Sabrina Clever
- Institute of Virology, University of Veterinary Medicine Hannover, 30559 Hanover, Germany; (S.C.); (L.-M.S.); (C.M.z.N.)
| | - Lisa-Marie Schünemann
- Institute of Virology, University of Veterinary Medicine Hannover, 30559 Hanover, Germany; (S.C.); (L.-M.S.); (C.M.z.N.)
| | - Federico Armando
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hanover, Germany (W.B.)
- Pathology Unit, Department of Veterinary Science, University of Parma, 43121 Parma, Italy
| | - Christian Meyer zu Natrup
- Institute of Virology, University of Veterinary Medicine Hannover, 30559 Hanover, Germany; (S.C.); (L.-M.S.); (C.M.z.N.)
| | - Tamara Tuchel
- Institute of Virology, University of Veterinary Medicine Hannover, 30559 Hanover, Germany; (S.C.); (L.-M.S.); (C.M.z.N.)
| | - Alina Tscherne
- Division of Virology, Department of Veterinary Sciences, LMU Munich, 80539 Munich, Germany; (A.T.); (G.S.)
| | - Malgorzata Ciurkiewicz
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hanover, Germany (W.B.)
| | - Wolfgang Baumgärtner
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hanover, Germany (W.B.)
| | - Gerd Sutter
- Division of Virology, Department of Veterinary Sciences, LMU Munich, 80539 Munich, Germany; (A.T.); (G.S.)
| | - Asisa Volz
- Institute of Virology, University of Veterinary Medicine Hannover, 30559 Hanover, Germany; (S.C.); (L.-M.S.); (C.M.z.N.)
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Panchalingam S, Kasivelu G, Jayaraman M, Kumar R, Kalimuthu S, Jeyaraman J. Differential gene expression analysis combined with molecular dynamics simulation study to elucidate the novel potential biomarker involved in pulmonary TB. Microb Pathog 2023; 182:106266. [PMID: 37482113 DOI: 10.1016/j.micpath.2023.106266] [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: 05/31/2023] [Revised: 06/21/2023] [Accepted: 07/21/2023] [Indexed: 07/25/2023]
Abstract
Tuberculosis (TB) is a lethal multisystem disease that attacks the lungs' first line of defense. A substantial threat to public health and a primary cause of death is pulmonary TB. This study aimed to identify and investigate the probable differentially expressed genes (DEGs) primarily involved in Pulmonary TB. Accordingly, three independent gene expression data sets, numbered GSE139825, GSE139871, and GSE54992, were utilized for this purpose. The identified DEGs were used for bioinformatics-based analysis, including physical gene interaction, Gene Ontology (GO), network analysis and pathway studies using the Kyoto Encyclopedia of Genes and Genomes pathway (KEGG). The computational analysis predicted that TNFAIP6 is the significant DEG in the gene expression profiling of TB datasets. According to gene ontology analysis, TNFAIP6 is also essential in injury and inflammation. Further, TNFA1P6 is strongly linked to arsenic poisoning, evident from the results of NetworkAnalyst, a comprehensive and interactive platform for gene expression profiling via network visual analytics. As a result, the TNFAIP6 gene was ultimately chosen as a candidate DEG and subsequently employed for in silico structural characterization studies. The tertiary structure of TNFAIP6 was modelled using the ROBETTA server, followed by validation with SAVES and ProSA webserver. Additionally, structural dynamic studies, including molecular dynamics simulation (MDS) and essential dynamics analysis, including principal component (PC) based free energy landscape (FEL) analysis, was used for checking the stability of TNFAIP6 models. The dynamics result established the structural rigidity of modelled TNFAIP6 through RMSD, RMSF and RoG results. The FEL analysis revealed the restricted conformational flexibility of TNFAIP6 by displaying a single minimum energy basin in the contour plot. The comprehensive computational analysis established that TNFAIP6 could serve as a viable biomarker to assess the severity of pulmonary TB.
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Affiliation(s)
- Santhiya Panchalingam
- Centre for Ocean Research, Sathyabama Institute of Science and Technology (Deemed to Be University), Chennai, 600 119, Tamil Nadu, India
| | - Govindaraju Kasivelu
- Centre for Ocean Research, Sathyabama Institute of Science and Technology (Deemed to Be University), Chennai, 600 119, Tamil Nadu, India.
| | - Manikandan Jayaraman
- Structural Biology and Biocomputing Lab, Department of Bioinformatics, Alagappa University, Karaikudi, 630 004, Tamil Nadu, India
| | - Rajalakshmi Kumar
- Mahatma Gandhi Medical Advanced Research Institute, Sri Balaji Vidyapeeth (Deemed to Be University), Pillayarkuppam, Puducherry, 607 402, India
| | | | - Jeyakanthan Jeyaraman
- Structural Biology and Biocomputing Lab, Department of Bioinformatics, Alagappa University, Karaikudi, 630 004, Tamil Nadu, India.
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Shin MS, Park HJ, Young J, Kang I. Implication of IL-7 receptor alpha chain expression by CD8 + T cells and its signature in defining biomarkers in aging. Immun Ageing 2022; 19:66. [PMID: 36544153 PMCID: PMC9768896 DOI: 10.1186/s12979-022-00324-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/10/2022] [Indexed: 12/24/2022]
Abstract
CD8+ T cells play an important role in host defense against infections and malignancies as well as contribute to the development of inflammatory disorders. Alterations in the frequency of naïve and memory CD8+ T cells are one of the most significant changes in the immune system with age. As the world population rapidly ages, a better understanding of aging immune function or immunosenescence could become a basis for discovering treatments of illnesses that commonly occur in older adults. In particular, biomarkers for immune aging could be utilized to identify individuals at high risk of developing age-associated conditions and help monitor the efficacy of therapeutic interventions targeting such conditions. This review details the possible role of CD8+ T cell subsets expressing different levels of the cytokine receptor IL-7 receptor alpha chain (IL-7Rα) and the gene signature associated with IL-7Rα as potential biomarkers for immune aging given the association of CD8+ T cells in host defense, inflammation, and immunosenescence.
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Affiliation(s)
- Min Sun Shin
- Departments of Internal Medicine, Section of Rheumatology, Allergy & Immunology, Yale University School of Medicine, S525C TAC, 300 Cedar Street, New Haven, CT, 06520, USA
| | - Hong-Jai Park
- Departments of Internal Medicine, Section of Rheumatology, Allergy & Immunology, Yale University School of Medicine, S525C TAC, 300 Cedar Street, New Haven, CT, 06520, USA
| | - Juan Young
- Departments of Psychiatry, Yale University School of Medicine, New Haven, CT, 06520, USA
| | - Insoo Kang
- Departments of Internal Medicine, Section of Rheumatology, Allergy & Immunology, Yale University School of Medicine, S525C TAC, 300 Cedar Street, New Haven, CT, 06520, USA.
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Yao PA, Sun HJ, Li XY. Identification of key genes in late-onset major depressive disorder through a co-expression network module. Front Genet 2022; 13:1048761. [PMID: 36561317 PMCID: PMC9763307 DOI: 10.3389/fgene.2022.1048761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
Late-onset major depressive disorder (LOD) increases the risk of disability and suicide in elderly patients. However, the complex pathological mechanism of LOD still remains unclear. We selected 10 LOD patients and 12 healthy control samples from the GSE76826 dataset for statistical analysis. Under the screening criteria, 811 differentially expressed genes (DEGs) were screened. We obtained a total of two most clinically significant modules through the weighted gene co-expression network analysis (WGCNA). Functional analysis of the genes in the most clinically significant modules was performed to explore the potential mechanism of LOD, followed by protein-protein interaction (PPI) analysis and hub gene identification in the core area of the PPI network. Furthermore, we identified immune infiltrating cells using the cell-type identification by estimating relative subsets of RNA transcripts (CIBERSORT) algorithm between healthy subjects and LOD patients with the GSE98793 dataset. Next, six hub genes (CD27, IL7R, CXCL1, CCR7, IGLL5, and CD79A) were obtained by intersecting hub genes with DEGs, followed by verifying the diagnostic accuracy with the receiver operating characteristic curve (ROC). In addition, we constructed the least absolute shrinkage and selection operator (LASSO) regression model for hub gene cross-validation. Finally, we found that CD27 and IGLL5 were good diagnostic indicators of LOD, and CD27 may be the key gene of immune function change in LOD. In conclusion, our research shows that the changes in the immune function may be an important mechanism in the development of LOD, which can provide some guidance for the related research of LOD in the future.
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Affiliation(s)
- Ping-An Yao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China,Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - Hai-Ju Sun
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - Xiao-Yu Li
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China,The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China,*Correspondence: Xiao-Yu Li,
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Xie Q, Lv H, Wang T, Sun J, Li Y, Niu Y, Xie W. Identifying Common Genes and Pathways Associated with Periodontitis and Aging by Bioinformatics Analysis. DISEASE MARKERS 2022; 2022:4199440. [PMID: 36438900 PMCID: PMC9691312 DOI: 10.1155/2022/4199440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/18/2022] [Accepted: 09/27/2022] [Indexed: 09/29/2023]
Abstract
BACKGROUND This work used bioinformatic analysis to identify the relationship between periodontitis (PD) and aging, which could lead to new treatments for periodontal disease in the elderly. METHOD Four microarray datasets were obtained from the Gene Expression Omnibus (GEO) database and analyzed in R language to identify differentially expressed genes (DEGs). The common DEGs of PD and aging were evaluated as key genes in this investigation by a Venn diagram. These common DEGs were analyzed through additional experiments and analysis, such as pathway analysis and enrichment analysis, and a network of protein-protein interactions (PPIs) was constructed. Cytoscape was used to visualize hub genes and critical modules based on the PPI network. Interaction of TF-genes and miRNAs with hub genes is identified. RESULT 84 common DEGs were found between PD and aging. Cytohubba was performed on the PPI network obtained from STRING tool, and the top 10 genes (MMP2, PDGFRB, CTGF, CD34, CXCL12, VIM, IL2RG, ACTA2, COL4A2, and TAGLN) were selected as hub genes. VIM may be a potential biomarker in the analysis of linked hub gene regulatory networks, and hsa-mir-21 and hsa-mir-125b are predicted to be associated in PD and aging. CONCLUSION This study investigated the key genes and pathways interactions between PD and aging, which may help reveal the correlation between PD and aging. The current research results are obtained by prediction, and follow-up biological experiments are required for further verification.
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Affiliation(s)
- Qi Xie
- Department of Endodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
- Department of Stomatology, Harbin Children's Hospital, Harbin, Heilongjiang 150001, China
| | - Hongyu Lv
- Department of Prosthodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Tianqi Wang
- Department of Prosthodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Jingxuan Sun
- Department of Endodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Yuekun Li
- Department of Prosthodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Yumei Niu
- Department of Endodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Weili Xie
- Department of Prosthodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
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IL-7/IL7R axis dysfunction in adults with severe community-acquired pneumonia (CAP): a cross-sectional study. Sci Rep 2022; 12:13145. [PMID: 35907923 PMCID: PMC9339003 DOI: 10.1038/s41598-022-13063-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 04/08/2022] [Indexed: 11/24/2022] Open
Abstract
Community-acquired pneumonia (CAP) is a worldwide leading cause of death. Recognized risk factors in some severe cases have not been identified. Lymphocytopenia has been frequently described in CAP. Since IL-7, membrane-bound receptor (IL7Rα;CD127) and soluble IL7Rα (sIL7R) are critical in lymphocytes homeostasis, in this work we aimed to evaluate the involvement of the IL-7/IL7Rα axis in the severity of adult CAP, since it has not been explored. The IL7Rα SNPs rs6897932, rs987106, and rs3194051 SNPs in IL7α were genotyped, the systemic expression of the IL7R gene, sIL7R, IL-7, and levels of peripheral IL7Rα+ T lymphocytes were quantified in 202 hospitalized CAP cases. rs3194051GG was more frequent in non-survivors than in survivors; rs987106TT was more frequent and rs3194051AA less frequent in patients at intensive care unit (ICU) than in those not admitted to ICU. IL7Rα gene expression was lower in non-survivors than in survivors, and in severe than in mild cases. CD3+CD127+ lymphocytes were lower in severe than in mild cases; in non-survivors than in survivors and in ICU than in non- ICU admitted cases. sIL7Rα plasmatic levels were higher in non-survivors than in survivors, and in severe than in mild cases. rs6897932CC, rs987106AA and rs3194051GG carriers showed the highest while rs6897932TT showed the lowest sIL7Rα levels. The AUC of sIL7Rα levels predicting 30-day mortality was 0.71. Plasma IL-7 levels were lower in ICU-admitted than in not ICU-admitted and in non-survivors than in survivors. No additional association was detected. In conclusion, rs3194051GG and rs987106TT IL7R genotypes were associated with a poorer prognosis. A significant association between sIL7R levels and SNPs of the IL7R gene is described for the first time in adult CAP. Increased plasmatic sIL7R could contribute to identifying adult CAP cases at risk of death.
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Cheong A, Nagel ZD. Human Variation in DNA Repair, Immune Function, and Cancer Risk. Front Immunol 2022; 13:899574. [PMID: 35935942 PMCID: PMC9354717 DOI: 10.3389/fimmu.2022.899574] [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: 03/18/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
DNA damage constantly threatens genome integrity, and DNA repair deficiency is associated with increased cancer risk. An intuitive and widely accepted explanation for this relationship is that unrepaired DNA damage leads to carcinogenesis due to the accumulation of mutations in somatic cells. But DNA repair also plays key roles in the function of immune cells, and immunodeficiency is an important risk factor for many cancers. Thus, it is possible that emerging links between inter-individual variation in DNA repair capacity and cancer risk are driven, at least in part, by variation in immune function, but this idea is underexplored. In this review we present an overview of the current understanding of the links between cancer risk and both inter-individual variation in DNA repair capacity and inter-individual variation in immune function. We discuss factors that play a role in both types of variability, including age, lifestyle, and environmental exposures. In conclusion, we propose a research paradigm that incorporates functional studies of both genome integrity and the immune system to predict cancer risk and lay the groundwork for personalized prevention.
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11
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Genetic, parental and lifestyle factors influence telomere length. Commun Biol 2022; 5:565. [PMID: 35681050 PMCID: PMC9184499 DOI: 10.1038/s42003-022-03521-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/22/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractThe average length of telomere repeats (TL) declines with age and is considered to be a marker of biological ageing. Here, we measured TL in six blood cell types from 1046 individuals using the clinically validated Flow-FISH method. We identified remarkable cell-type-specific variations in TL. Host genetics, environmental, parental and intrinsic factors such as sex, parental age, and smoking are associated to variations in TL. By analysing the genome-wide methylation patterns, we identified that the association of maternal, but not paternal, age to TL is mediated by epigenetics. Single-cell RNA-sequencing data for 62 participants revealed differential gene expression in T-cells. Genes negatively associated with TL were enriched for pathways related to translation and nonsense-mediated decay. Altogether, this study addresses cell-type-specific differences in telomere biology and its relation to cell-type-specific gene expression and highlights how perinatal factors play a role in determining TL, on top of genetics and lifestyle.
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12
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Mkhikian H, Hayama KL, Khachikyan K, Li C, Zhou RW, Pawling J, Klaus S, Tran PQN, Ly KM, Gong AD, Saryan H, Hai JL, Grigoryan D, Lee PL, Newton BL, Raffatellu M, Dennis JW, Demetriou M. Age-associated impairment of T cell immunity is linked to sex-dimorphic elevation of N-glycan branching. NATURE AGING 2022; 2:231-242. [PMID: 35528547 PMCID: PMC9075523 DOI: 10.1038/s43587-022-00187-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 02/02/2022] [Indexed: 11/08/2022]
Abstract
Impaired T cell immunity with aging increases mortality from infectious disease. The branching of Asparagine-linked glycans is a critical negative regulator of T cell immunity. Here we show that branching increases with age in females more than males, in naïve more than memory T cells, and in CD4+ more than CD8+ T cells. Female sex hormones and thymic output of naïve T cells (TN) decrease with age, however neither thymectomy nor ovariectomy altered branching. Interleukin-7 (IL-7) signaling was increased in old female more than male mouse TN cells, and triggered increased branching. N-acetylglucosamine, a rate-limiting metabolite for branching, increased with age in humans and synergized with IL-7 to raise branching. Reversing elevated branching rejuvenated T cell function and reduced severity of Salmonella infection in old female mice. These data suggest sex-dimorphic antagonistic pleiotropy, where IL-7 initially benefits immunity through TN maintenance but inhibits TN function by raising branching synergistically with age-dependent increases in N-acetylglucosamine.
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Affiliation(s)
- Haik Mkhikian
- Department of Pathology and Laboratory Medicine, University of California, Irvine, Irvine, CA, USA
| | - Ken L Hayama
- Department of Microbiology and Molecular Genetics, University of California, Irvine, Irvine, CA, USA
| | - Khachik Khachikyan
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Carey Li
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Raymond W Zhou
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Judy Pawling
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Suzi Klaus
- Department of Microbiology and Molecular Genetics, University of California, Irvine, Irvine, CA, USA
| | - Phuong Q N Tran
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Kim M Ly
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Andrew D Gong
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Hayk Saryan
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Jasper L Hai
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - David Grigoryan
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Philip L Lee
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Barbara L Newton
- Department of Neurology, University of California, Irvine, Irvine, CA, USA
| | - Manuela Raffatellu
- Department of Microbiology and Molecular Genetics, University of California, Irvine, Irvine, CA, USA
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
- Center for Mucosal Immunology, Allergy, and Vaccines, Chiba University-UC San Diego, La Jolla, CA, USA
| | - James W Dennis
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Michael Demetriou
- Department of Microbiology and Molecular Genetics, University of California, Irvine, Irvine, CA, USA.
- Department of Neurology, University of California, Irvine, Irvine, CA, USA.
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13
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Zhu X, Wang Z, Sun YE, Liu Y, Wu Z, Ma B, Cheng L. Neuroprotective Effects of Human Umbilical Cord-Derived Mesenchymal Stem Cells From Different Donors on Spinal Cord Injury in Mice. Front Cell Neurosci 2022; 15:768711. [PMID: 35087378 PMCID: PMC8787356 DOI: 10.3389/fncel.2021.768711] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/02/2021] [Indexed: 12/12/2022] Open
Abstract
Spinal cord injury (SCI) is caused by an external force, leading to severe dysfunction of the limbs below the injured segment. The inflammatory response plays a vital role in the prognosis of SCI. Human umbilical cord mesenchymal stem cell (hUCMSC) transplantation can promote repair of SCI by reducing the inflammatory response. We previously showed that hUCMSCs from 32 donors had different inhibitory abilities on BV2 cell proliferation. In this study, three experimental groups were established, and the mice were injected with different lines of hUCMSCs. Hind limb motor function, hematoxylin-eosin (H&E) staining, immunohistochemistry, Western blot (WB), qualitative real-time polymerase chain reaction (qRT-PCR), and RNA sequencing and correlation analysis were used to investigate the effects of hUCMSC transplantation on SCI mice and the underlying mechanisms. The results showed that the therapeutic effects of the three hUCMSC lines were positively correlated with their inhibitory abilities of BV2 cell proliferation rates in vitro. The MSC_A line had a better therapeutic effect on improving the hind limb motor function and greater effect on reducing the expression of glial fibrillary acidic protein (Gfap) and ionized calcium binding adaptor molecule 1 (Iba1) and increasing the expression of neuronal nuclei (NeuN). Differentially expressed genes including Zbtb16, Per3, and Hif3a were probably the key genes involved in the protective mechanism by MSC_A after nerve injury. qRT-PCR results further verified that Zbtb16, Per3, and Hif3a expressions reduced by SCI could be reversed by MSC_A application. These results suggest that the effect of hUCMSCs transplantation on acute SCI depends on their inhibitory abilities to inflammation reaction after nerve injury, which may help to shape future use of hUCMSCs combined with improving the effectiveness of clinical transformation.
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Affiliation(s)
- Xu Zhu
- Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, Tongji University, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
| | - Zhen Wang
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University, School of Medicine, Shanghai, China
| | - Yi Eve Sun
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
| | - Yuchen Liu
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
| | - Zhourui Wu
- Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, Tongji University, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
| | - Bei Ma
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
- *Correspondence: Bei Ma,
| | - Liming Cheng
- Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, Tongji University, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
- Liming Cheng,
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14
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Bilski J, Pierzchalski P, Szczepanik M, Bonior J, Zoladz JA. Multifactorial Mechanism of Sarcopenia and Sarcopenic Obesity. Role of Physical Exercise, Microbiota and Myokines. Cells 2022; 11:cells11010160. [PMID: 35011721 PMCID: PMC8750433 DOI: 10.3390/cells11010160] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/27/2021] [Accepted: 12/31/2021] [Indexed: 02/07/2023] Open
Abstract
Obesity and ageing place a tremendous strain on the global healthcare system. Age-related sarcopenia is characterized by decreased muscular strength, decreased muscle quantity, quality, and decreased functional performance. Sarcopenic obesity (SO) is a condition that combines sarcopenia and obesity and has a substantial influence on the older adults’ health. Because of the complicated pathophysiology, there are disagreements and challenges in identifying and diagnosing SO. Recently, it has become clear that dysbiosis may play a role in the onset and progression of sarcopenia and SO. Skeletal muscle secretes myokines during contraction, which play an important role in controlling muscle growth, function, and metabolic balance. Myokine dysfunction can cause and aggravate obesity, sarcopenia, and SO. The only ways to prevent and slow the progression of sarcopenia, particularly sarcopenic obesity, are physical activity and correct nutritional support. While exercise cannot completely prevent sarcopenia and age-related loss in muscular function, it can certainly delay development and slow down the rate of sarcopenia. The purpose of this review was to discuss potential pathways to muscle deterioration in obese individuals. We also want to present the current understanding of the role of various factors, including microbiota and myokines, in the process of sarcopenia and SO.
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Affiliation(s)
- Jan Bilski
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-008 Krakow, Poland
- Correspondence: ; Tel.: +48-12-421-93-51
| | - Piotr Pierzchalski
- Department of Medical Physiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-126 Krakow, Poland; (P.P.); (J.B.)
| | - Marian Szczepanik
- Department of Medical Biology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-034 Krakow, Poland;
| | - Joanna Bonior
- Department of Medical Physiology, Chair of Biomedical Sciences, Faculty of Health Sciences, Institute of Physiotherapy, Jagiellonian University Medical College, 31-126 Krakow, Poland; (P.P.); (J.B.)
| | - Jerzy A. Zoladz
- Chair of Exercise Physiology and Muscle Bioenergetics, Faculty of Health Sciences, Jagiellonian University Medical College, 31-066 Krakow, Poland;
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15
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Baizan-Edge A, Stubbs BA, Stubbington MJT, Bolland DJ, Tabbada K, Andrews S, Corcoran AE. IL-7R signaling activates widespread V H and D H gene usage to drive antibody diversity in bone marrow B cells. Cell Rep 2021; 36:109349. [PMID: 34260907 PMCID: PMC8293627 DOI: 10.1016/j.celrep.2021.109349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 04/05/2021] [Accepted: 06/15/2021] [Indexed: 01/09/2023] Open
Abstract
Generation of the primary antibody repertoire requires V(D)J recombination of hundreds of gene segments in the immunoglobulin heavy chain (Igh) locus. The role of interleukin-7 receptor (IL-7R) signaling in Igh recombination has been difficult to partition from its role in B cell survival and proliferation. With a detailed description of the Igh repertoire in murine IL-7Rα-/- bone marrow B cells, we demonstrate that IL-7R signaling profoundly influences VH gene selection during VH-to-DJH recombination. We find skewing toward 3' VH genes during de novo VH-to-DJH recombination more severe than the fetal liver (FL) repertoire and uncover a role for IL-7R signaling in DH-to-JH recombination. Transcriptome and accessibility analyses suggest reduced expression of B lineage transcription factors (TFs) and targets and loss of DH and VH antisense transcription in IL-7Rα-/- B cells. Thus, in addition to its roles in survival and proliferation, IL-7R signaling shapes the Igh repertoire by activating underpinning mechanisms.
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Affiliation(s)
- Amanda Baizan-Edge
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Bryony A Stubbs
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Michael J T Stubbington
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Daniel J Bolland
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK; Lymphocyte Signaling and Development Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Kristina Tabbada
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK; Lymphocyte Signaling and Development Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Simon Andrews
- Bioinformatics Group, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Anne E Corcoran
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK; Lymphocyte Signaling and Development Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK.
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16
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Xu H, Cai L, Li Z, Zhang L, Wang G, Xie R, Jiang Y, Yuan Y, Nie H. Dual effect of IL-7/IL-7R signalling on the osteoimmunological system: a potential therapeutic target for rheumatoid arthritis. Immunology 2021; 164:161-172. [PMID: 33934341 DOI: 10.1111/imm.13351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 03/08/2021] [Accepted: 03/30/2021] [Indexed: 12/18/2022] Open
Abstract
The IL-7/IL-7R pathway plays a vital role in the immune system, especially in the inflammatory response. Monocytes/macrophages (osteoclast precursors) have been recently recognized as important participants in the osteoclastogenesis of rheumatoid arthritis (RA) patients. Here, we aimed to investigate the therapeutic potential of IL-7/IL-7R pathway in RA and to determine whether it could restrain osteoclastogenic functions and therefore ameliorate RA. Firstly, collagen-induced arthritis (CIA) mice were administered with IL-7Rα-target antibodies to assess their therapeutic effect on arthritis. We found that blockade of the IL-7/IL-7R pathway protected CIA mice from bone destruction in addition to inducing inflammatory remission, by altering the RANKL/RANK/OPG ratio and consequently decreasing osteoclast formation. To explore the effect and mechanism of this pathway, bone marrow cells were induced to osteoclasts and treated with IL-7, a STAT5 inhibitor or supernatants from T cells. The results showed that the IL-7/IL-7R pathway played a direct inhibitory role in osteoclast differentiation via STAT5 signalling pathway in a RANKL-induced manner. We applied flow cytometry to analyse the effect of IL-7 on T-cell RANKL expression and found that IL-7/IL-7R pathway had an indirect role in the osteoclast differentiation process by enhancing the RANKL expression on T cells. In conclusion, the IL-7/IL-7R pathway exhibited a dual effect on osteoclastogenesis of CIA mice by interacting with osteoimmunology processes and could be a novel therapeutic target for autoimmune diseases such as RA.
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Affiliation(s)
- Haiyan Xu
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Department of Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li Cai
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Infectious Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Zijian Li
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lili Zhang
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guojue Wang
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rongli Xie
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of General Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongshuai Jiang
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanyang Yuan
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Nie
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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17
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Fessler J, Fasching P, Raicht A, Hammerl S, Weber J, Lackner A, Hermann J, Dejaco C, Graninger WB, Schwinger W, Stradner MH. Lymphopenia in primary Sjögren's syndrome is associated with premature aging of naïve CD4+ T cells. Rheumatology (Oxford) 2021; 60:588-597. [PMID: 32227243 DOI: 10.1093/rheumatology/keaa105] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 02/13/2020] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE To investigate peripheral lymphopenia, a frequent finding in primary Sjögren's syndrome (pSS) associated with higher disease activity and increased mortality. METHODS Prospective, cross-sectional study of consecutive patients with pSS (n = 66) and healthy controls (n = 181). Lymphocyte subsets were analysed by flow cytometry, naïve (CD45RA+) and memory (CD45RO+) CD4+ T cells were purified by MACS technology. In vitro proliferation and senescence-associated β-galactosidase (SABG) were assessed by flow cytometry. Telomere length and TCR excision circles (TREC) were measured by real-time PCR. Telomerase activity was analysed according to the telomeric repeat amplification protocols (TRAP). RESULTS In pSS, lymphopenia mainly affected naïve CD4+ T cells. We noted a lower frequency of proliferating naïve CD4+ T cells ex vivo and decreased homeostatic proliferation in response to IL-7 stimulation in vitro. Furthermore, naïve CD4+ T cells exhibited signs of immune cell aging including shortened telomeres, a reduction in IL-7R expression and accumulation of SABG. The senescent phenotype could be explained by telomerase insufficiency and drastically reduced levels of T-cell receptor excision circles (TRECs), indicating a history of extensive post-thymic cell division. TRECs correlated with the number of naïve CD4+ T cells linking the extend of earlier proliferation to the inability to sustain normal cell numbers. CONCLUSION In pSS, evidence for increased proliferation of naïve CD4+ T cells earlier in life is associated with a senescent phenotype unable to sustain homeostasis. The lack of naïve CD4+ T cells forms the basis of lymphopenia frequently observed in pSS.
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Affiliation(s)
- Johannes Fessler
- Department of Rheumatology and Immunology, Medical University of Graz, Graz, Austria.,Department of Neurology, Harvard Medical School, Brigham and Women's Hospital, Harvard, MA, USA
| | - Patrizia Fasching
- Department of Rheumatology and Immunology, Medical University of Graz, Graz, Austria
| | - Andrea Raicht
- Department of Pediatric Hemato-Oncology, Medical University of Graz, Graz, Austria
| | - Sabrina Hammerl
- Department of Rheumatology and Immunology, Medical University of Graz, Graz, Austria
| | - Jennifer Weber
- Department of Rheumatology and Immunology, Medical University of Graz, Graz, Austria
| | - Angelika Lackner
- Department of Rheumatology and Immunology, Medical University of Graz, Graz, Austria
| | - Josef Hermann
- Department of Rheumatology and Immunology, Medical University of Graz, Graz, Austria
| | - Christian Dejaco
- Department of Rheumatology and Immunology, Medical University of Graz, Graz, Austria.,Servizio di Reumatologia, Azienda Sanitaria dell'Alto Adige, Ospedale di Brunico, Brunico, Italy
| | - Winfried B Graninger
- Department of Rheumatology and Immunology, Medical University of Graz, Graz, Austria
| | - Wolfgang Schwinger
- Department of Pediatric Hemato-Oncology, Medical University of Graz, Graz, Austria
| | - Martin H Stradner
- Department of Rheumatology and Immunology, Medical University of Graz, Graz, Austria
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18
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Ge L, Zhang Y, Zhao X, Wang J, Zhang Y, Wang Q, Yu H, Zhang Y, You Y. EIF2AK2 selectively regulates the gene transcription in immune response and histones associated with systemic lupus erythematosus. Mol Immunol 2021; 132:132-141. [PMID: 33588244 DOI: 10.1016/j.molimm.2021.01.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 01/21/2021] [Accepted: 01/28/2021] [Indexed: 12/13/2022]
Abstract
PKR, also known as EIF2AK2, is an IFN-stimulated gene (ISG) and shows a higher expression in probands with systemic lupus erythematosus (SLE), which is likely responsible for the impaired translational and proliferative responses to mitogens in T cells from SLE patients. In this study, we overexpressed EIF2AK2 in HeLa cells to study EIF2AK2-regulated genes using RNA-seq technology, followed by bioinformatic analysis of target genes of EIF2AK2-regulated transcriptional factors (TFs). Overexpression of EIF2AK2 promotes HeLa cell apoptosis. EIF2AK2 selectively represses the transcription of histone protein genes associated with SLE, immune response genes and TF genes, which was validated by RT-qPCR experiments. Analysis of motifs overrepresented in the promoter regions of EIF2AK2-regulated genes revealed eighteen EIF2AK2-regulated TFs involved in establishing the EIF2AK2 network. Eight out of these predicted EIF2AK2-regulated TFs were further verified by RT-qPCR selectively in both HeLa and Jurkat cells, and most such as HEY2, TFEC, BATF2, GATA3 and ATF3 and FOXO6 are known to regulate immune response. Our results suggest that the dsRNA-dependent kinase EIF2AK2 selectively regulates the transcription of immune response and SLE-associated histone protein genes, and such a selectivity is likely to be operated by EIF2AK2-targeted TFs. The EIF2AK2-TFs axis potentially offers new therapeutic targets for counteracting immunological disease in the future.
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Affiliation(s)
- Lan Ge
- Department of Dermatology, Southwest Hospital, Third Military Medical University(Army Medical University), Chongqing, 400038, China.
| | - Yuhong Zhang
- Laboratory of Human Health and Genome Regulation, ABLife Inc., Wuhan, Hubei 430075, China; Center for Genome Analysis, ABLife Inc., Wuhan, Hubei 430075, China.
| | - Xingwang Zhao
- Department of Dermatology, Southwest Hospital, Third Military Medical University(Army Medical University), Chongqing, 400038, China.
| | - Juan Wang
- Department of Dermatology, Southwest Hospital, Third Military Medical University(Army Medical University), Chongqing, 400038, China.
| | - Yu Zhang
- Center for Genome Analysis, ABLife Inc., Wuhan, Hubei 430075, China.
| | - Qi Wang
- Center for Genome Analysis, ABLife Inc., Wuhan, Hubei 430075, China.
| | - Han Yu
- Laboratory of Human Health and Genome Regulation, ABLife Inc., Wuhan, Hubei 430075, China.
| | - Yi Zhang
- Laboratory of Human Health and Genome Regulation, ABLife Inc., Wuhan, Hubei 430075, China; Center for Genome Analysis, ABLife Inc., Wuhan, Hubei 430075, China.
| | - Yi You
- Department of Dermatology, Southwest Hospital, Third Military Medical University(Army Medical University), Chongqing, 400038, China.
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19
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Angarola BL, Anczuków O. Splicing alterations in healthy aging and disease. WILEY INTERDISCIPLINARY REVIEWS. RNA 2021. [PMID: 33565261 DOI: 10.1002/wrna.1643.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Alternative RNA splicing is a key step in gene expression that allows generation of numerous messenger RNA transcripts encoding proteins of varied functions from the same gene. It is thus a rich source of proteomic and functional diversity. Alterations in alternative RNA splicing are observed both during healthy aging and in a number of human diseases, several of which display premature aging phenotypes or increased incidence with age. Age-associated splicing alterations include differential splicing of genes associated with hallmarks of aging, as well as changes in the levels of core spliceosomal genes and regulatory splicing factors. Here, we review the current known links between alternative RNA splicing, its regulators, healthy biological aging, and diseases associated with aging or aging-like phenotypes. This article is categorized under: RNA in Disease and Development > RNA in Disease RNA Processing > Splicing Regulation/Alternative Splicing.
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Affiliation(s)
| | - Olga Anczuków
- The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut, USA.,Department of Genetics and Genome Sciences, UConn Health, Farmington, Connecticut, USA.,Institute for Systems Genomics, UConn Health, Farmington, Connecticut, USA
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20
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Angarola BL, Anczuków O. Splicing alterations in healthy aging and disease. WILEY INTERDISCIPLINARY REVIEWS-RNA 2021; 12:e1643. [PMID: 33565261 DOI: 10.1002/wrna.1643] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 12/19/2022]
Abstract
Alternative RNA splicing is a key step in gene expression that allows generation of numerous messenger RNA transcripts encoding proteins of varied functions from the same gene. It is thus a rich source of proteomic and functional diversity. Alterations in alternative RNA splicing are observed both during healthy aging and in a number of human diseases, several of which display premature aging phenotypes or increased incidence with age. Age-associated splicing alterations include differential splicing of genes associated with hallmarks of aging, as well as changes in the levels of core spliceosomal genes and regulatory splicing factors. Here, we review the current known links between alternative RNA splicing, its regulators, healthy biological aging, and diseases associated with aging or aging-like phenotypes. This article is categorized under: RNA in Disease and Development > RNA in Disease RNA Processing > Splicing Regulation/Alternative Splicing.
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Affiliation(s)
| | - Olga Anczuków
- The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut, USA.,Department of Genetics and Genome Sciences, UConn Health, Farmington, Connecticut, USA.,Institute for Systems Genomics, UConn Health, Farmington, Connecticut, USA
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21
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Izraelson M, Metsger M, Davydov AN, Shagina IA, Dronina MA, Obraztsova AS, Miskevich DA, Mamedov IZ, Volchkova LN, Nakonechnaya TO, Shugay M, Bolotin DA, Staroverov DB, Sharonov GV, Kondratyuk EY, Zagaynova EV, Lukyanov S, Shams I, Britanova OV, Chudakov DM. Distinct organization of adaptive immunity in the long-lived rodent Spalax galili. NATURE AGING 2021; 1:179-189. [PMID: 37118630 DOI: 10.1038/s43587-021-00029-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 01/08/2021] [Indexed: 04/30/2023]
Abstract
A balanced immune response is a cornerstone of healthy aging. Here, we uncover distinctive features of the long-lived blind mole-rat (Spalax spp.) adaptive immune system, relative to humans and mice. The T-cell repertoire remains diverse throughout the Spalax lifespan, suggesting a paucity of large long-lived clones of effector-memory T cells. Expression of master transcription factors of T-cell differentiation, as well as checkpoint and cytotoxicity genes, remains low as Spalax ages. The thymus shrinks as in mice and humans, while interleukin-7 and interleukin-7 receptor expression remains high, potentially reflecting the sustained homeostasis of naive T cells. With aging, immunoglobulin hypermutation level does not increase and the immunoglobulin-M repertoire remains diverse, suggesting shorter B-cell memory and sustained homeostasis of innate-like B cells. The Spalax adaptive immune system thus appears biased towards sustained functional and receptor diversity over specialized, long-lived effector-memory clones-a unique organizational strategy that potentially underlies this animal's extraordinary longevity and healthy aging.
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Affiliation(s)
- M Izraelson
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - M Metsger
- Central European Institute of Technology, Brno, Czech Republic
| | - A N Davydov
- Central European Institute of Technology, Brno, Czech Republic
| | - I A Shagina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - M A Dronina
- Institute of Evolution & Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
| | - A S Obraztsova
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - D A Miskevich
- Institute of Evolution & Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
| | - I Z Mamedov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
- Central European Institute of Technology, Brno, Czech Republic
| | - L N Volchkova
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - T O Nakonechnaya
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - M Shugay
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - D A Bolotin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - D B Staroverov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - G V Sharonov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - E Y Kondratyuk
- Institute of Systematics and Ecology of Animals SB RAS, Novosibirsk, Russia
| | - E V Zagaynova
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - S Lukyanov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - I Shams
- Institute of Evolution & Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel
| | - O V Britanova
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.
| | - D M Chudakov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia.
- Pirogov Russian National Research Medical University, Moscow, Russia.
- Central European Institute of Technology, Brno, Czech Republic.
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22
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T. cruzi infection among aged rats: Melatonin as a promising therapeutic molecule. Exp Gerontol 2020; 135:110922. [PMID: 32151734 DOI: 10.1016/j.exger.2020.110922] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 02/12/2020] [Accepted: 03/05/2020] [Indexed: 12/12/2022]
Abstract
Although T. cruzi was identified as the cause of Chagas disease more than 100 years ago, satisfactory treatments still do not exist, especially for chronic disease. Here we review work suggesting that melatonin could have promise as a Chagas therapeutic. Melatonin has remarkably diverse actions. It is an immunomodulator, an anti-inflammatory, an antioxidant, a free radical scavenger, and has antiapoptotic and anti-aging effects. The elderly (aged 60 years or more) as a group are growing faster than any other age group. Here we discuss the major effects and the mechanisms of action of melatonin on aged T. cruzi-infected rats. Melatonin's protective effects may be consequences of its cooperative antioxidant and immunomodulatory actions. Melatonin modulates oxidative damage, inducing an antioxidant response and reversing age-related thymus regression. Its protective actions could be the result of its anti-apoptotic activity, and by its counteracting the excessive production of corticosterone. This review describes our work showing that host age plays an important and variable influence on the progression of systemic T. cruzi infection and supporting the hypothesis that melatonin should be considered as a powerful therapeutic compound with multiple activities that can improve host homeostasis during experimental T. cruzi infection.
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Britton GB, O’Bryant SE, Johnson LA, Hall JR, Villarreal AE, Oviedo DC, Pérez-Lao AR, Carreira MB. Inflammatory Biomarkers, Depressive Symptoms and Falls Among the elderly in Panama. Curr Aging Sci 2019; 11:236-241. [PMID: 30767759 PMCID: PMC6635419 DOI: 10.2174/1874609812666190215125104] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/08/2019] [Accepted: 02/11/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Falls are common among elderly adults, and are predictors of hospitalization, institutionalization and mortality. OBJECTIVE The objective of the present study was to examine the relationship between blood-based markers of inflammation and fall events in a sample of elderly Hispanic adults. METHOD Data were collected from 190 participants enrolled in the Panama Aging Research Initiative study who completed baseline clinical and cognitive assessments. A non-fasting blood sample was obtained. Self-reported falls were classified as no falls, single falls or recurrent (two or more) falls reported in the 12 months prior to baseline evaluations. Serum levels of C Reactive Protein (CRP), T-lymphocyte secreting protein (I-309), interleukin 10 (IL-10), interleukin 6 (IL-6) and interleukin 7 (IL-7) were measured. Global cognition was assessed with the Mini Mental State Examination and depressive symptoms were assessed with the Geriatric Depression Scale (GDS-30). Multinomial logistic regression was used to assess the link between inflammation and fall events. RESULTS Depressive symptoms, limitations in Instrumental Activities of Daily Living (IADL), IL-7 and I-309 were significantly related to fall events. Elevated levels of IL-7 increased the likelihood of single and recurrent falls, while increased levels of I-309 were associated only with recurrent falls. Greater IADL limitations and depressive symptoms were associated with an increased likelihood of recurrent falls. CONCLUSION There is a lack of research investigating the relationship between inflammatory biomarkers and fall events. These results provide evidence of risk factors for falls in Hispanic older adults, and could serve to guide public health professionals to establish clinical guidelines to reduce fall risks.
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Affiliation(s)
- Gabrielle B. Britton
- Address correspondence to this author at the Center of Neurosciences and Clinical Research Unit, Institute of Scientific Research and High Technology Services (INDICASAT AIP), City of Knowledge # 219, Clayton, PO Box 0843-01103, Panama; Tel: +507 5170735;
Fax: +507 5070000; E-mail:
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24
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The evaluation of inflammatory, anti-inflammatory and regulatory factors contributing to the pathogenesis of COPD in airways. Pathol Res Pract 2018; 215:97-105. [PMID: 30392917 DOI: 10.1016/j.prp.2018.10.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/15/2018] [Accepted: 10/26/2018] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Chronic obstructive pulmonary disease (COPD) is a progressive chronic disease leading to obstructive lung airways and airflow limitations. The background of COPD is extensive cytopathology and histopathology orchestrated by mostly chronic inflammation with the local release of inflammatory, anti-inflammatory and regulatory mediators, as well as further remodeling and shaping of local architecture. Inflammatory mechanisms are provided by complex intercellular signalling networks and regulation of locally occurring immune responses. MATERIAL AND METHODS In this study, lung tissue specimens obtained from 33 COPD patients and 49 control patients were analysed. Tissue samples were examined by hematoxylin and eosin staining. Immunoreactive cells positive for interleukin (IL)-1α (IL-1α), IL-4, IL-6, IL-7, IL-8, IL-10, IL-12, and tumour necrosis factor-α (TNF-α) were detected by an immunohistochemistry (IHC) method. RESULTS We evaluated overall higher numbers of IL-7, IL-8 and IL-10 (mostly from few (0/+) to almost abundance (++++)) and overall less numbers of IL-1α and IL-6 (mostly from no positive (0) to numerous to abundance (+++/++++)) immunoreactive cells in airway epithelium and connective tissue of COPD affected lung. Furthermore, we evaluated statistically significant (P < 0.05) higher numbers of immunoreactive cells located in control group airway epithelium for IL-4, IL-6, IL-7, IL-10, and IL-12 compared to mucosal and submucosal connective tissue. Moreover, in COPD group airway epithelium for IL-1α, IL-4, IL-6, IL-7, IL-8, and IL-10. We found no statistically significant difference between the numbers of IL-12 and TNF-α immunoreactive cells in airway epithelium and connective tissue of COPD affected lung. In comparison with the control group, we found statistically significant (P < 0.05) higher numbers of immunoreactive cells positive for all examined markers in COPD group. CONCLUSIONS Increased numbers of IL-1α, IL-4, IL-6, IL-7, IL-8, IL-10, IL-12, and TNF-α immunoreactive cells highlight the local significance of these markers in COPD pathogenesis. Moreover, the pattern with dominance of immunoreactive cells in COPD affected airway epithelium over connective tissue is highlighting the essentials of epithelium in inflammatory signalling.
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25
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Rea IM, Gibson DS, McGilligan V, McNerlan SE, Alexander HD, Ross OA. Age and Age-Related Diseases: Role of Inflammation Triggers and Cytokines. Front Immunol 2018; 9:586. [PMID: 29686666 PMCID: PMC5900450 DOI: 10.3389/fimmu.2018.00586] [Citation(s) in RCA: 698] [Impact Index Per Article: 116.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 03/08/2018] [Indexed: 12/11/2022] Open
Abstract
Cytokine dysregulation is believed to play a key role in the remodeling of the immune system at older age, with evidence pointing to an inability to fine-control systemic inflammation, which seems to be a marker of unsuccessful aging. This reshaping of cytokine expression pattern, with a progressive tendency toward a pro-inflammatory phenotype has been called "inflamm-aging." Despite research there is no clear understanding about the causes of "inflamm-aging" that underpin most major age-related diseases, including atherosclerosis, diabetes, Alzheimer's disease, rheumatoid arthritis, cancer, and aging itself. While inflammation is part of the normal repair response for healing, and essential in keeping us safe from bacterial and viral infections and noxious environmental agents, not all inflammation is good. When inflammation becomes prolonged and persists, it can become damaging and destructive. Several common molecular pathways have been identified that are associated with both aging and low-grade inflammation. The age-related change in redox balance, the increase in age-related senescent cells, the senescence-associated secretory phenotype (SASP) and the decline in effective autophagy that can trigger the inflammasome, suggest that it may be possible to delay age-related diseases and aging itself by suppressing pro-inflammatory molecular mechanisms or improving the timely resolution of inflammation. Conversely there may be learning from molecular or genetic pathways from long-lived cohorts who exemplify good quality aging. Here, we will discuss some of the current ideas and highlight molecular pathways that appear to contribute to the immune imbalance and the cytokine dysregulation, which is associated with "inflammageing" or parainflammation. Evidence of these findings will be drawn from research in cardiovascular disease, cancer, neurological inflammation and rheumatoid arthritis.
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Affiliation(s)
- Irene Maeve Rea
- School of Medicine, Dentistry and Biomedical Science, Queens University Belfast, Belfast, United Kingdom
- Northern Ireland Centre for Stratified Medicine, Biomedical Sciences Research Institute, University of Ulster, C-TRIC Building, Altnagelvin Area Hospital, Londonderry, United Kingdom
- Care of Elderly Medicine, Belfast Health and Social Care Trust, Belfast, United Kingdom
| | - David S. Gibson
- Northern Ireland Centre for Stratified Medicine, Biomedical Sciences Research Institute, University of Ulster, C-TRIC Building, Altnagelvin Area Hospital, Londonderry, United Kingdom
| | - Victoria McGilligan
- Northern Ireland Centre for Stratified Medicine, Biomedical Sciences Research Institute, University of Ulster, C-TRIC Building, Altnagelvin Area Hospital, Londonderry, United Kingdom
| | - Susan E. McNerlan
- Regional Genetics Service, Belfast Health and Social Care Trust, Belfast, United Kingdom
| | - H. Denis Alexander
- Northern Ireland Centre for Stratified Medicine, Biomedical Sciences Research Institute, University of Ulster, C-TRIC Building, Altnagelvin Area Hospital, Londonderry, United Kingdom
| | - Owen A. Ross
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, United States
- Department of Clinical Genomics, Mayo Clinic, Jacksonville, FL, United States
- School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
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26
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Holder A, Jones G, Soutter F, Palmer DB, Aspinall R, Catchpole B. Polymorphisms in the canine IL7R 3'UTR are associated with thymic output in Labrador retriever dogs and influence post-transcriptional regulation by microRNA 185. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2018; 81:244-251. [PMID: 29247721 DOI: 10.1016/j.dci.2017.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 12/08/2017] [Accepted: 12/08/2017] [Indexed: 06/07/2023]
Abstract
Interleukin-7 (IL-7) and its receptor (IL-7R) are essential for T cell development in the thymus, and changes in the IL-7/IL-7R pathway have been implicated in age-associated thymic involution which results in a reduction of naïve T cell output. The aim of this study was to investigate the relationship between IL7 and IL7R genetic variation and thymic output in dogs. No single nucleotide polymorphisms (SNPs) were identified in the canine IL7 gene, but a number were present in the canine IL7R gene. Polymorphisms in the IL7R exon 8 and 3'UTR were found to be associated with signal joint T cell receptor excision circle (sj-TREC) values (a biomarker of thymic output) in young and geriatric Labrador retrievers. Additionally, one of the SNPs in the IL7R 3'UTR (SNP 14 c.1371 + 446 A > C) was found to cause a change in the seed-binding site for microRNA 185 which, a luciferase reporter assay demonstrated, caused changes in post-transcriptional regulation, and therefore might be capable of influencing IL-7R expression. The research findings suggest a genetic link between IL7R genotype and thymic output in dogs, which might impact on immune function as these animals age and provide further evidence of the involvement of IL-7/IL-7R pathway in age-associated thymic involution.
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Affiliation(s)
- Angela Holder
- Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, Hertfordshire, UK
| | - Gareth Jones
- Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, Hertfordshire, UK
| | - Francesca Soutter
- Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, Hertfordshire, UK
| | - Donald B Palmer
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | - Richard Aspinall
- Health and Wellbeing Academy, Postgraduate Medical Institute, Anglia Ruskin University, Chelmsford, Essex, UK
| | - Brian Catchpole
- Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, Hertfordshire, UK.
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Felizardo AA, Marques DVB, Caldas IS, Gonçalves RV, Novaes RD. Could age and aging change the host response to systemic parasitic infections? A systematic review of preclinical evidence. Exp Gerontol 2018; 104:17-27. [PMID: 29366738 DOI: 10.1016/j.exger.2018.01.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 01/17/2018] [Accepted: 01/19/2018] [Indexed: 01/03/2023]
Abstract
The impact of age and aging in the evolution of systemic parasitic infections remains poorly understood. We conducted a systematic review from preclinical models of Chagas disease, leishmaniasis, malaria, sleeping sickness and toxoplasmosis. From a structured and comprehensive search in electronic databases, 29 studies were recovered and included in the review. Beyond the characteristics of the experimental models, parasitological and immunological outcomes, we also discussed the quality of current evidence. Our findings indicated that throughout aging, parasitemia and mortality were consistently reduced in Chagas disease and malaria, but were similar or increased in leishmaniasis and highly variable in toxoplasmosis. While a marked humoral response in older animals was related to the anti-T. cruzi protective phenotype, cellular responses mediated by a polarized Th1 phenotype were associated with a more effective defense against Plasmodium infection. Conversely, in leishmaniasis, severe infections and high mortality rates were potentially related to attenuation of humoral response and an imbalance between Th1 and Th2 phenotypes. Due to the heterogeneous parasitological outcomes and limited immunological data, the role of aging on toxoplasmosis evolution remains unclear. From a detailed description of the methodological bias, more controlled researches could avoid the systematic reproduction of inconsistent and poorly reproducible experimental designs.
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Affiliation(s)
- Amanda Aparecida Felizardo
- Institute of Biomedical Sciences, Federal University of Alfenas, Alfenas, 37130-001, Minas Gerais, Brazil; Department of Structural Biology, Federal University of Alfenas, Alfenas, 37130-001, Minas Gerais, Brazil
| | - Débora Vasconcelos Bastos Marques
- Institute of Biomedical Sciences, Federal University of Alfenas, Alfenas, 37130-001, Minas Gerais, Brazil; Department of Pathology and Parasitology, Federal University of Alfenas, Alfenas, 37130-001, Minas Gerais, Brazil
| | - Ivo Santana Caldas
- Institute of Biomedical Sciences, Federal University of Alfenas, Alfenas, 37130-001, Minas Gerais, Brazil; Department of Pathology and Parasitology, Federal University of Alfenas, Alfenas, 37130-001, Minas Gerais, Brazil
| | | | - Rômulo Dias Novaes
- Institute of Biomedical Sciences, Federal University of Alfenas, Alfenas, 37130-001, Minas Gerais, Brazil; Department of Structural Biology, Federal University of Alfenas, Alfenas, 37130-001, Minas Gerais, Brazil.
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Abstract
Broad changes in human innate and adaptive immunity are associated with advanced age. The age-related alteration of gene expression was reported for both T and B lymphocytes. We analysed the genome-wide expression profiles (n=20) of naive and whole B cell populations from young and early aged healthy donors under 60 years. We revealed large homogeneity of all analysed genome-wide expression profiles but did not identified any significant gene deregulation between young (30-45 years) and early aged healthy donors (50-60 years). We argue that B cells avoid the aging program on molecular level until 60 years of age. Our results demonstrate the potential of hematopoietic stem cells to generate uncompromised lymphocytes in early elderly. These are very encouraging findings for the general health and the immunity maintenance would not need any intervention to naive B cells. Rather, a suitable immune stimulation in healthy body environment warrants further research into aging of older elderly.
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29
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Pawelec G. Immune parameters associated with mortality in the elderly are context-dependent: lessons from Sweden, Holland and Belgium. Biogerontology 2017; 19:537-545. [PMID: 29185165 DOI: 10.1007/s10522-017-9739-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 11/23/2017] [Indexed: 01/10/2023]
Abstract
The pioneering Swedish OCTO/NONA-Immune longitudinal studies led by Anders Wikby in Jönköping in the 1990s established a cluster of simple baseline immune parameters associated with excess mortality in 85 year-old non-institutionalized individuals over 2, 4 and 6-year follow-up. We dubbed this cluster the "Immune Risk Profile" (IRP) consisting of poor proliferative responses of peripheral blood mononuclear cells to T cell mitogens, accumulations of CD8+ CD28- T-cells resulting in an inverted CD4:8 ratio, decreased amounts of B-cells, and seropositivity for Cytomegalovirus (CMV). The concept of the IRP has since been applied by others to many different populations in different circumstances and at different ages, but in general without specifically establishing whether the same risk factors were relevant in the tested subjects. However, our own later studies showed that risk factors in aged populations from The Netherlands and Belgium were markedly different, indicating that the IRP cannot simply be transferred between populations. Moreover, there was a striking sex difference in the Belgian study, which was the only one large enough to include sufficient numbers of old men. The reasons for these marked differences between populations which one might have assumed a priori to be quite similar to one another are not clear, and many candidates can be speculated upon, but the important lesson is that there is a marked context-dependency of immune biomarkers of ageing, suggesting that IRPs cannot be assumed to be identical in different populations.
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Affiliation(s)
- Graham Pawelec
- Second Department of Internal Medicine, University of Tübingen, Tübingen, Germany.
- Health Sciences North Research Institute of Canada, Sudbury, ON, Canada.
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30
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Interleukin-7 and Immunosenescence. J Immunol Res 2017; 2017:4807853. [PMID: 28484723 PMCID: PMC5397725 DOI: 10.1155/2017/4807853] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 02/01/2017] [Accepted: 02/19/2017] [Indexed: 12/21/2022] Open
Abstract
The age of an individual is an important, independent risk factor for many of the most common diseases afflicting modern societies. Interleukin-7 (IL-7) plays a central, critical role in the homeostasis of the immune system. Recent studies support a critical role for IL-7 in the maintenance of a vigorous healthspan. We describe the role of IL-7 and its receptor in immunosenescence, the aging of the immune system. An understanding of the role that IL-7 plays in aging may permit parsimonious preventative or therapeutic solutions for diverse conditions. Perhaps IL-7 might be used to "tune" the immune system to optimize human healthspan and longevity.
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31
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Ventura MT, Scichilone N, Paganelli R, Minciullo PL, Patella V, Bonini M, Passalacqua G, Lombardi C, Simioni L, Ridolo E, Del Giacco SR, Gangemi S, Canonica GW. Allergic diseases in the elderly: biological characteristics and main immunological and non-immunological mechanisms. Clin Mol Allergy 2017; 15:2. [PMID: 28174512 PMCID: PMC5290673 DOI: 10.1186/s12948-017-0059-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/06/2017] [Indexed: 02/08/2023] Open
Abstract
Life expectancy and the number of elderly people are progressively increasing around the world. Together with other pathologies, allergic diseases also show an increasing incidence in geriatric age. This is partly due to the growing emphasis on a more accurate and careful diagnosis of the molecular mechanisms that do not allow to ignore the real pathogenesis of many symptoms until now unknown, and partly to the fact that the allergic people from 20 years ago represent the elderly population now. Moreover, environmental pollution predisposes to the onset of allergic asthma and dermatitis which are the result of internal pathologies more than the expression of allergic manifestations. At the same time the food contamination permits the onset of allergic diseases related to food allergy. In this review we provide the state of the art on the physiological changes in the elderly responsible for allergic diseases, their biological characteristics and the major immunological and extra immunological mechanisms. Much emphasis is given to the management of several diseases in the elderly, including anaphylactic reactions. Moreover, some new features are discussed, such as management of asthma with the support of physical activity and the use of the AIT as prevention of respiratory diseases and for the purpose of a real and long lasting benefit. The mechanisms of adverse reactions to drugs are also discussed, due to their frequency in this age, especially in polytherapy regimens. Study of the modifications of the immune system is also of great importance, as regards to the distribution of the lymphocytes and also the presence of a chronic inflammatory disease related to the production of cytokines, especially in prevision of all the possible therapies to be adopted to allow an active and healthy aging.
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Affiliation(s)
- Maria Teresa Ventura
- Interdisciplinary Department of Medicine, Unit of Geriatric Immunoallergology, University of Bari Medical School, Bari, Italy
| | | | - Roberto Paganelli
- Laboratory of Immunology and Allergy, Department of Medicine and Sciences of Aging, University of G. d’Annunzio, Chieti, Italy
| | - Paola Lucia Minciullo
- Division and School of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University Hospital of Messina, Messina, Italy
| | - Vincenzo Patella
- Division of Allergy and Clinical Immunology, Department of Medicine, Battipaglia Hospital, Battipaglia, Salerno, Italy
- School of Allergy and Clinical Immunology, University of Naples Federico II, Naples, Italy
| | - Matteo Bonini
- National Heart and Lung Institute (NHLI), Imperial College London & Royal Brompton Hospital, London, UK
| | - Giovanni Passalacqua
- Allergy and Respiratory Diseases, IRCCS San Martino-IST-University of Genoa, Genoa, Italy
| | - Carlo Lombardi
- Departmental Unit of AllergologyClinical Immunology & Pneumology, Fondazione Poliambulanza Hospital, Brescia, Italy
| | - Livio Simioni
- Department of Medicine, Allergy Service, ULSS 2 Feltre, Belluno, Italy
| | - Erminia Ridolo
- Experimental and Clinical Medicine, University of Parma, Parma, Italy
| | | | - Sebastiano Gangemi
- Division and School of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University Hospital of Messina, Messina, Italy
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32
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Brinkmeyer-Langford CL, Guan J, Ji G, Cai JJ. Aging Shapes the Population-Mean and -Dispersion of Gene Expression in Human Brains. Front Aging Neurosci 2016; 8:183. [PMID: 27536236 PMCID: PMC4971101 DOI: 10.3389/fnagi.2016.00183] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 07/15/2016] [Indexed: 11/13/2022] Open
Abstract
Human aging is associated with cognitive decline and an increased risk of neurodegenerative disease. Our objective for this study was to evaluate potential relationships between age and variation in gene expression across different regions of the brain. We analyzed the Genotype-Tissue Expression (GTEx) data from 54 to 101 tissue samples across 13 brain regions in post-mortem donors of European descent aged between 20 and 70 years at death. After accounting for the effects of covariates and hidden confounding factors, we identified 1446 protein-coding genes whose expression in one or more brain regions is correlated with chronological age at a false discovery rate of 5%. These genes are involved in various biological processes including apoptosis, mRNA splicing, amino acid biosynthesis, and neurotransmitter transport. The distribution of these genes among brain regions is uneven, suggesting variable regional responses to aging. We also found that the aging response of many genes, e.g., TP37 and C1QA, depends on individuals' genotypic backgrounds. Finally, using dispersion-specific analysis, we identified genes such as IL7R, MS4A4E, and TERF1/TERF2 whose expressions are differentially dispersed by aging, i.e., variances differ between age groups. Our results demonstrate that age-related gene expression is brain region-specific, genotype-dependent, and associated with both mean and dispersion changes. Our findings provide a foundation for more sophisticated gene expression modeling in the studies of age-related neurodegenerative diseases.
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Affiliation(s)
| | - Jinting Guan
- Department of Automation, Xiamen UniversityXiamen, China
| | - Guoli Ji
- Department of Automation, Xiamen UniversityXiamen, China
- Innovation Center for Cell Signaling Network, Xiamen UniversityXiamen, China
| | - James J. Cai
- Department of Veterinary Integrative Biosciences, Texas A&M UniversityCollege Station, TX, USA
- Interdisciplinary Program in Genetics, Texas A&M UniversityCollege Station, TX, USA
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Zhang Q, Nogales-Cadenas R, Lin JR, Zhang W, Cai Y, Vijg J, Zhang ZD. Systems-level analysis of human aging genes shed new light on mechanisms of aging. Hum Mol Genet 2016; 25:2934-2947. [PMID: 27179790 DOI: 10.1093/hmg/ddw145] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 04/07/2016] [Accepted: 05/09/2016] [Indexed: 11/13/2022] Open
Abstract
Although studies over the last decades have firmly connected a number of genes and molecular pathways to aging, the aging process as a whole still remains poorly understood. To gain novel insights into the mechanisms underlying aging, instead of considering aging genes individually, we studied their characteristics at the systems level in the context of biological networks. We calculated a comprehensive set of network characteristics for human aging-related genes from the GenAge database. By comparing them with other functional groups of genes, we identified a robust group of aging-specific network characteristics. To find the structural basis and the molecular mechanisms underlying this aging-related network specificity, we also analyzed protein domain interactions and gene expression patterns across different tissues. Our study revealed that aging genes not only tend to be network hubs, playing important roles in communication among different functional modules or pathways, but also are more likely to physically interact and be co-expressed with essential genes. The high expression of aging genes across a large number of tissue types also points to a high level of connectivity among aging genes. Unexpectedly, contrary to the depletion of interactions among hub genes in biological networks, we observed close interactions among aging hubs, which renders the aging subnetworks vulnerable to random attacks and thus may contribute to the aging process. Comparison across species reveals the evolution process of the aging subnetwork. As the organisms become more complex, the complexity of its aging mechanisms increases and their aging hub genes are more functionally connected.
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Affiliation(s)
| | | | | | | | | | - Jan Vijg
- Department of Genetics.,Department of Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, NY, USA
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Assessment of health status by molecular measures in adults ranging from middle-aged to old: Ready for clinical use? Exp Gerontol 2016; 87:175-181. [PMID: 27045974 DOI: 10.1016/j.exger.2016.03.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/25/2016] [Accepted: 03/30/2016] [Indexed: 11/20/2022]
Abstract
In addition to measures already used in clinical practice, molecular measures have been proposed to assess health status, but these have not yet been introduced into clinical practice. We aimed to test the association of functional capacity measures used in current practice and molecular measures with age and health status. The cohort consisted of 178 middle-aged to old participants of the Leiden Longevity Study (range 42-82years). We tested associations between functional capacity measures (physical tests: grip strength, 4-meter walk, chair stand test; cognitive tests: Stroop test, digit symbol substitution test and 15-picture learning test) with age and with cardiovascular or metabolic disease as a measure of the health status. These associations with age and health status were also tested for molecular measures (C reactive protein (CRP), numbers of senescent p16INK4a positive cells in the epidermis and dermis and putative immunosenescence (presence of CD57+ T cells)). All functional capacity measures were associated with age. CRP and epidermal p16INK4a positivity were also associated with age, but with smaller estimates. Grip strength and the Stroop test were associated with cardiovascular or metabolic disease, as was epidermal p16INK4a positivity. All associations with cardiovascular or metabolic disease attenuated when adjusting for age. In conclusion, in middle-aged to old persons, the molecular measures tested here were more weakly associated with age and health status than functional capacity measures. Whether these molecular measures associate more closely with health status in the elderly or in specific groups of patients needs to be explored further.
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