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Bernier RA, Sundermann EE, Edland SD, Deters KD, Shepherd AL, Clark AL, Shiroma EJ, Banks SJ. Exercise: Just What the Doctor Ordered, But Why? Elucidating Mechanisms for Women's Increased High-Density Lipoprotein Benefit From Exercise and for the Health ABC Study. J Appl Gerontol 2024:7334648241257995. [PMID: 38835249 DOI: 10.1177/07334648241257995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024] Open
Abstract
High-density lipoprotein (HDL) is protective against cardiovascular disease. Exercise can increase HDL concentration, and some evidence suggests that this effect occurs more strongly in women than in men. Both HDL and exercise are associated with inflammation. We hypothesized a sex-by-exercise interaction on HDL level, whereby women would benefit from exercise more strongly than men, and tumor necrosis factor alpha and serum soluble tumor necrosis factor receptor-2 would mediate this relationship. This study included 2,957 older adult participants (1,520 women; 41% Black, 59% White; 73.6-years-old) from the Health, Aging, and Body Composition study. Regression models revealed a positive exercise-HDL relationship in women only (sex-by-exercise interaction: β = 0.09, p = .013; exercise on HDL in women: β = 0.07, p = .015), mediated by TNFα (axb = 0.15; CI: 0.01, 0.30), suggesting that exercise may increase HDL levels in women through reduced inflammation. Given that vascular risk contributes to Alzheimer's disease risk, findings have implications for sex differences in AD risk factors.
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Affiliation(s)
- Rachel A Bernier
- University of California, San Diego, San Diego, CA, USA
- Wentworth-Douglass Hospital Mass General Brigham, Dover, NH, USA
| | | | | | - Kacie D Deters
- University of California Los Angeles, Los Angeles, CA, USA
| | | | - Alexandra L Clark
- VA San Diego Healthcare System, La Jolla, CA, USA
- University of Texas at Austin, Austin, TX, USA
| | - Eric J Shiroma
- National Institute on Aging, National Institutes of Health, Washington, DC, USA
| | - Sarah J Banks
- University of California, San Diego, San Diego, CA, USA
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Vitallé J, Pérez-Gómez A, Ostos FJ, Gasca-Capote C, Jiménez-Leon MR, Bachiller S, Rivas-Jeremías I, Silva-Sánchez MDM, Ruiz-Mateos AM, Martín-Sánchez MÁ, López-Cortes LF, Rafii El Idrissi Benhnia M, Ruiz-Mateos E. Immune defects associated with lower SARS-CoV-2 BNT162b2 mRNA vaccine response in elderly people. JCI Insight 2022; 7:161045. [PMID: 35943812 PMCID: PMC9536264 DOI: 10.1172/jci.insight.161045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022] Open
Abstract
The immune factors associated with impaired SARS-CoV-2 vaccine response in the elderly are mostly unknown. We studied >60 and <60 years old people vaccinated with SARS-CoV-2 BNT162b2 mRNA before and after the first and second dose. Aging was associated with a lower anti-RBD IgG levels and a decreased magnitude and polyfunctionality of SARS-CoV-2 specific T cell response. The dramatic decrease in thymic function in aged people with >60 years of age, which fueled alteration in T cell homeostasis, and lower CD161+ T cell levels were associated with decreased T cell response two months after vaccination. Additionally, a deficient dendritic cell (DC) homing, activation and Toll like receptor (TLR)-mediated function, along with a proinflammatory functional profile in monocytes, were observed in the >60 years old group, which was also related to lower specific T cell response after vaccination. These findings might be relevant for the improvement of the current vaccination strategies and for the development of new vaccine prototypes.
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Affiliation(s)
- Joana Vitallé
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Alberto Pérez-Gómez
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Francisco José Ostos
- Department of Medical Biochemistry, Molecular Biology, and Immunology, University of Seville School of Medicine, Seville, Spain
| | - Carmen Gasca-Capote
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Maria Reyes Jiménez-Leon
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Sara Bachiller
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Inmaculada Rivas-Jeremías
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Maria Del Mar Silva-Sánchez
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Anabel M Ruiz-Mateos
- Centro de Salud Pinillo Chico, Centro de Salud Pinillo Chico, El Puerto de Santa María, Seville, Spain
| | - María Ángeles Martín-Sánchez
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Luis Fernando López-Cortes
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Mohammed Rafii El Idrissi Benhnia
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Ezequiel Ruiz-Mateos
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
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Bernier RA, Banks SJ, Panizzon MS, Andrews MJ, Jacobs EG, Galasko DR, Shepherd AL, Akassoglou K, Sundermann EE. The neuroinflammatory marker sTNFR2 relates to worse cognition and tau in women across the Alzheimer's disease spectrum. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2022; 14:e12284. [PMID: 35386474 PMCID: PMC8973901 DOI: 10.1002/dad2.12284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/19/2021] [Accepted: 12/06/2021] [Indexed: 11/27/2022]
Abstract
Introduction Despite women showing greater Alzheimer's disease (AD) prevalence, tau burden, and immune/neuroinflammatory response, whether neuroinflammation impacts cognition differently in women versus men and the biological basis of this impact remain unknown. We examined sex differences in how cerebrospinal fluid (CSF) neuroinflammation relates to cognition across the aging-mild cognitive impairment (MCI)-AD continuum and the mediating role of phosphorylated tau (p-tau) versus other AD biomarkers. Methods Participants included 284 individuals from the Alzheimer's Disease Neuroimaging Initiative study. CSF neuroinflammatory markers included interleukin-6, tumor necrosis factor α, soluble tumor necrosis factor receptor 2 (sTNFR2), and chitinase-3-like protein 1. AD biomarkers were CSF p-tau181 and amyloid beta1-42 levels and magnetic resonance imaging measures of hippocampal and white matter hyperintensity volumes. Results We found a sex-by-sTNFR2 interaction on Mini-Mental State Examination and Clinical Dementia Rating-Sum of Boxes. Higher levels of sTNFR2 related to poorer cognition in women only. Among biomarkers, only p-tau181 eliminated the female-specific relationships between neuroinflammation and cognition. Discussion Women may be more susceptible than men to the adverse effects of sTNFR2 on cognition with a potential etiological link with tau to these effects.
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Affiliation(s)
- Rachel A. Bernier
- Department of NeuroscienceUniversity of California, San DiegoSan DiegoCaliforniaUSA
| | - Sarah J. Banks
- Department of NeuroscienceUniversity of California, San DiegoSan DiegoCaliforniaUSA
| | - Matthew S. Panizzon
- Department of PsychiatryUniversity of California, San DiegoSan DiegoCaliforniaUSA
- Center for Behavior Genetics of AgingUniversity of California, San DiegoSan DiegoCaliforniaUSA
| | - Murray J. Andrews
- Department of NeuroscienceUniversity of California, San DiegoSan DiegoCaliforniaUSA
| | - Emily G. Jacobs
- Department of Psychological and Brain SciencesUniversity of California, Santa BarbaraSanta BarbaraCaliforniaUSA
| | - Douglas R. Galasko
- Department of NeuroscienceUniversity of California, San DiegoSan DiegoCaliforniaUSA
| | - Alyx L. Shepherd
- Department of NeuroscienceUniversity of California, San DiegoSan DiegoCaliforniaUSA
| | - Katerina Akassoglou
- Gladstone UCSF Center for Neurovascular Brain ImmunologySan FranciscoCaliforniaUSA
- Gladstone Institute of Neurological DiseaseSan FranciscoCaliforniaUSA
- Department of NeurologyWeill Institute for NeurosciencesUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
| | - Erin E. Sundermann
- Department of PsychiatryUniversity of California, San DiegoSan DiegoCaliforniaUSA
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4
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Garrido-Torres N, Cerrillos L, García Cerro S, Pérez Gómez A, Canal-Rivero M, de Felipe B, Alameda L, Marqués Rodríguez R, Anillo S, Praena J, Duque Sánchez C, Roca C, Paniagua M, López Díaz A, Romero-García R, Olbrich P, Puertas Albarracín MDP, Reguera Pozuelo P, Sosa IL, Moreno Dueñas MB, Pineda Cachero R, Zamudio Juan L, García Rumi V, Guerrero Benitez M, Figueroa R, Martín Rendón AM, Partida A, Rodríguez Cocho MI, Gallardo Trujillo C, Gallego Jiménez I, García Spencer S, Gómez Verdugo M, Bermejo Fernández C, Pérez Benito M, Castillo Reina RE, Cejudo López A, Sánchez Tomás C, Chacón Gamero MÁ, Rubio A, Moreno Mellado A, Ramos Herrero V, Starr E, González Fernández de Palacios M, García Victori E, Pavón Delgado A, Fernández Cuervo I, Arias Ruiz A, Menéndez Gil IE, Domínguez Gómez I, Coca Mendoza I, Ayesa-Arriola R, Fañanas L, Leza JC, Cisneros JM, Sánchez Céspedes J, Ruiz-Mateos E, Crespo-Facorro B, Ruiz-Veguilla M. Examining the immune signatures of SARS-CoV-2 infection in pregnancy and the impact on neurodevelopment: Protocol of the SIGNATURE longitudinal study. Front Pediatr 2022; 10:899445. [PMID: 36619503 PMCID: PMC9811261 DOI: 10.3389/fped.2022.899445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 10/26/2022] [Indexed: 12/24/2022] Open
Abstract
The COVID-19 pandemic represents a valuable opportunity to carry out cohort studies that allow us to advance our knowledge on pathophysiological mechanisms of neuropsychiatric diseases. One of these opportunities is the study of the relationships between inflammation, brain development and an increased risk of suffering neuropsychiatric disorders. Based on the hypothesis that neuroinflammation during early stages of life is associated with neurodevelopmental disorders and confers a greater risk of developing neuropsychiatric disorders, we propose a cohort study of SARS-CoV-2-infected pregnant women and their newborns. The main objective of SIGNATURE project is to explore how the presence of prenatal SARS-CoV-2 infection and other non-infectious stressors generates an abnormal inflammatory activity in the newborn. The cohort of women during the COVID-19 pandemic will be psychological and biological monitored during their pregnancy, delivery, childbirth and postpartum. The biological information of the umbilical cord (foetus blood) and peripheral blood from the mother will be obtained after childbirth. These samples and the clinical characterisation of the cohort of mothers and newborns, are tremendously valuable at this time. This is a protocol report and no analyses have been conducted yet, being currently at, our study is in the recruitment process step. At the time of this publication, we have identified 1,060 SARS-CoV-2 infected mothers and all have already given birth. From the total of identified mothers, we have recruited 537 SARS-COV-2 infected women and all of them have completed the mental health assessment during pregnancy. We have collected biological samples from 119 mothers and babies. Additionally, we have recruited 390 non-infected pregnant women.
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Affiliation(s)
- Nathalia Garrido-Torres
- Mental Health Unit, Virgen del Rocio University Hospital, Seville, Spain.,Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain.,Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain.,Department of Psychiatry, University of Seville, Seville, Spain
| | - Lucas Cerrillos
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Susana García Cerro
- Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain.,Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain
| | - Alberto Pérez Gómez
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Seville Biomedical Research Institute (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Manuel Canal-Rivero
- Mental Health Unit, Virgen del Rocio University Hospital, Seville, Spain.,Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain.,Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain.,Department of Psychiatry, University of Seville, Seville, Spain
| | - Beatriz de Felipe
- Congenital Immunity Disorders Group de Alteraciones Congénitas de Inmunidad, Seville Biomedical Research Institute, Seville, Spain.,Pediatrics, Infectious Diseases and Immunology Department, University Hospital Virgen del Rocío, Sevilla, Spain
| | - Luis Alameda
- Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain.,Department of Psychiatry, University of Seville, Seville, Spain.,Service of General Psychiatry, Lausanne University Hospital (CHUV), Lausanne, Switzerland.,Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Renata Marqués Rodríguez
- Department of Pediatrics, Virgen del Rocío University Hospital / Institute of Biomedicine of Seville (IBiS), Seville, Spain
| | - Sergio Anillo
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Julia Praena
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Cristina Duque Sánchez
- Department of Pediatrics, Virgen del Rocío University Hospital / Institute of Biomedicine of Seville (IBiS), Seville, Spain
| | - Cristina Roca
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Seville Biomedical Research Institute (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - María Paniagua
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Seville Biomedical Research Institute (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Alvaro López Díaz
- Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain.,Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain.,Department of Psychiatry, University of Seville, Seville, Spain
| | - Rafael Romero-García
- Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain.,Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain.,Department of Medical Physiology and Biophysics, Seville Biomedical Research Institute (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Peter Olbrich
- Congenital Immunity Disorders Group de Alteraciones Congénitas de Inmunidad, Seville Biomedical Research Institute, Seville, Spain
| | | | - Pablo Reguera Pozuelo
- Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain
| | - Irene Luján Sosa
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - María Begoña Moreno Dueñas
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Rocío Pineda Cachero
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Lidia Zamudio Juan
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Verónica García Rumi
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Mercedes Guerrero Benitez
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Rosario Figueroa
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Antonio Manuel Martín Rendón
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Antonio Partida
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - María Isabel Rodríguez Cocho
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Carmen Gallardo Trujillo
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Isabel Gallego Jiménez
- Department of Genetics, Reproduction and Maternal-Fetal Medicine, University Hospital Virgen del Rocío, Seville, Spain
| | - Sarah García Spencer
- Department of Pediatrics, Virgen del Rocío University Hospital / Institute of Biomedicine of Seville (IBiS), Seville, Spain
| | - Marta Gómez Verdugo
- Department of Pediatrics, Virgen del Rocío University Hospital / Institute of Biomedicine of Seville (IBiS), Seville, Spain
| | - Cintia Bermejo Fernández
- Department of Pediatrics, Virgen del Rocío University Hospital / Institute of Biomedicine of Seville (IBiS), Seville, Spain
| | - María Pérez Benito
- Department of Pediatrics, Virgen del Rocío University Hospital / Institute of Biomedicine of Seville (IBiS), Seville, Spain
| | | | - Angela Cejudo López
- Department of family medicine, Virgen del Rocío University Hospital, Primary Care Health Centers, Seville, Spain
| | - Candela Sánchez Tomás
- Department of family medicine, Virgen del Rocío University Hospital, Primary Care Health Centers, Seville, Spain
| | | | - Ana Rubio
- Mental Health Unit, Virgen del Rocio University Hospital, Seville, Spain
| | - Amanda Moreno Mellado
- Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain
| | - Víctor Ramos Herrero
- Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain
| | - Ella Starr
- Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain
| | | | - Elena García Victori
- Department of Pediatrics, Virgen del Rocío University Hospital / Institute of Biomedicine of Seville (IBiS), Seville, Spain
| | - Antonio Pavón Delgado
- Department of Pediatrics, Virgen del Rocío University Hospital / Institute of Biomedicine of Seville (IBiS), Seville, Spain
| | | | | | | | | | | | - Rosa Ayesa-Arriola
- Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain.,Department of Psychiatry, University Hospital Marqués de Valdecilla - Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Lourdes Fañanas
- Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain.,Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, University of Barcelona (UB), Barcelona, Spain
| | - Juan C Leza
- Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain.,Department of Pharmacology & Toxicology, Faculty of Medicine, Universidad Complutense Madrid, CIBERSAM, Imas12, IUINQ, Madrid, Spain
| | - José M Cisneros
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Seville Biomedical Research Institute (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Javier Sánchez Céspedes
- Viral Diseases and Infections in Immunodeficiencies Research Group, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | - Ezequiel Ruiz-Mateos
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Seville Biomedical Research Institute (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Benedicto Crespo-Facorro
- Mental Health Unit, Virgen del Rocio University Hospital, Seville, Spain.,Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain.,Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain.,Department of Psychiatry, University of Seville, Seville, Spain
| | - Miguel Ruiz-Veguilla
- Mental Health Unit, Virgen del Rocio University Hospital, Seville, Spain.,Translational Psychiatry Group, Seville Biomedical Research Institute (IBiS), Seville, Spain.,Spanish Network for Research in Mental Health CIBERSAM, ISCIII, Madrid, Spain.,Department of Psychiatry, University of Seville, Seville, Spain
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5
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Silva CS, Sundling C, Folkesson E, Fröberg G, Nobrega C, Canto-Gomes J, Chambers BJ, Lakshmikanth T, Brodin P, Bruchfeld J, Nigou J, Correia-Neves M, Källenius G. High Dimensional Immune Profiling Reveals Different Response Patterns in Active and Latent Tuberculosis Following Stimulation With Mycobacterial Glycolipids. Front Immunol 2021; 12:727300. [PMID: 34887849 PMCID: PMC8650708 DOI: 10.3389/fimmu.2021.727300] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Upon infection with Mycobacterium tuberculosis (Mtb) the host immune response might clear the bacteria, control its growth leading to latent tuberculosis (LTB), or fail to control its growth resulting in active TB (ATB). There is however no clear understanding of the features underlying a more or less effective response. Mtb glycolipids are abundant in the bacterial cell envelope and modulate the immune response to Mtb, but the patterns of response to glycolipids are still underexplored. To identify the CD45+ leukocyte activation landscape induced by Mtb glycolipids in peripheral blood of ATB and LTB, we performed a detailed assessment of the immune response of PBMCs to the Mtb glycolipids lipoarabinomannan (LAM) and its biosynthetic precursor phosphatidyl-inositol mannoside (PIM), and purified-protein derivate (PPD). At 24 h of stimulation, cell profiling and secretome analysis was done using mass cytometry and high-multiplex immunoassay. PIM induced a diverse cytokine response, mainly affecting antigen-presenting cells to produce both pro-inflammatory and anti-inflammatory cytokines, but not IFN-γ, contrasting with PPD that was a strong inducer of IFN-γ. The effect of PIM on the antigen-presenting cells was partly TLR2-dependent. Expansion of monocyte subsets in response to PIM or LAM was reduced primarily in LTB as compared to healthy controls, suggesting a hyporesponsive/tolerance pattern derived from Mtb infection.
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Affiliation(s)
- Carolina S Silva
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga, Portugal
| | - Christopher Sundling
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Elin Folkesson
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Gabrielle Fröberg
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Claudia Nobrega
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga, Portugal
| | - João Canto-Gomes
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga, Portugal
| | - Benedict J Chambers
- Center for Infectious Medicine, Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Tadepally Lakshmikanth
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Petter Brodin
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.,Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
| | - Judith Bruchfeld
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Jérôme Nigou
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier, Toulouse, France
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga, Portugal.,Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Gunilla Källenius
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
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6
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Felismino ES, Santos JMB, Rossi M, Santos CAF, Durigon EL, Oliveira DBL, Thomazelli LM, Monteiro FR, Sperandio A, Apostólico JS, França CN, Amaral JB, Amirato GR, Vieira RP, Vaisberg M, Bachi ALL. Better Response to Influenza Virus Vaccination in Physically Trained Older Adults Is Associated With Reductions of Cytomegalovirus-Specific Immunoglobulins as Well as Improvements in the Inflammatory and CD8 + T-Cell Profiles. Front Immunol 2021; 12:713763. [PMID: 34712226 PMCID: PMC8546344 DOI: 10.3389/fimmu.2021.713763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 09/21/2021] [Indexed: 12/26/2022] Open
Abstract
Chronic cytomegalovirus (CMV) infection is a trigger factor for the development of immunosenescence and negatively impacts the immune response to influenza virus vaccination (IVV) in older adults. However, the role of physical exercise training in this context is unknown. Thus, the aim of this study was to investigate whether the regular practice of combined exercise training can improve the specific antibody response to IVV in CMV-seropositive older adults. Eighty older adults were distributed into two groups—non-practitioners (NP, n = 31, age = 74.06 ± 6.4 years) and practitioners of combined exercise training (CET, n = 49, age = 71.7 ± 5.8 years)—for at least 12 months. Both volunteer groups were submitted to IVV and blood samples were collected before (pre) and 30 days after (post) the vaccination. Concerning the specific antibody response to IVV, higher serum levels of specific immunoglobulin A (IgA) were found in the CET group post- than pre-vaccination (p < 0.01), whereas higher levels of specific immunoglobulin M (IgM) were observed both in the NP (p < 0.05) and CET (p < 0.001) groups post-vaccination as compared to the pre-vaccination values. Serum levels of specific immunoglobulin G (IgG) for IVV and CMV, as well as interleukin 6 (IL-6) and IL-10, were similar between the time points evaluated. However, the IL-10/IL-6 ratio post-vaccination was higher (p < 0.05) in the CET group than that before vaccination. Negative correlations were observed between the specific IgG levels for IVV and CMV only in the CET group, both pre- and post-vaccination. In addition, negative correlations were found between IL-10 and specific IgG for CMV in all volunteer groups pre- and post-vaccination, whereas a positive correlation between IL-10 and specific-IgG for IVV pre- and post-vaccination was observed in the CET group. In addition, with the hemagglutination inhibition (HAI) assay, it was found that 32.2% of the NP group and 32.6% of the CET group were responders to IVV and displayed reductions in the CMV serostatus (p < 0.05 and p < 0.001, respectively) and increases in naive and effector CD8+ T cells post-vaccination (p < 0.01). However, only the responders from the CET group showed significant reductions in the ratio of effector to naive CD8+ T cells (p < 0.05) and increased IL-10 levels post-vaccination (p < 0.001). In summary, this study demonstrates that the improvement in the response to IVV in CMV-seropositive older adults was related to an anti-inflammatory status and enhancement of naive CD8+ T cells, particularly associated with regular practice of CET.
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Affiliation(s)
- Eduardo S Felismino
- Post-Graduation Program in Health Science, University of Santo Amaro, São Paulo, Brazil
| | - Juliana M B Santos
- Post-Graduation Program in Sciences of Human Movement and Rehabilitation, Federal University of São Paulo, Santos, Brazil
| | - Marcelo Rossi
- Ear, Nose and Throat (ENT) Lab, Department of Otorhinolaryngology, Federal University of São Paulo, São Paulo, Brazil
| | - Carlos A F Santos
- Department of Medicine, Geriatry, Paulista School of Medicine (EPM), São Paulo, Brazil
| | - Edison L Durigon
- Laboratory of Clinical and Molecular Virology, Department of Microbiology, Institute of Biomedical Science of University of São Paulo, São Paulo, Brazil.,Scientific Platform Pasteur-University of São Paulo, São Paulo, Brazil
| | - Danielle B L Oliveira
- Laboratory of Clinical and Molecular Virology, Department of Microbiology, Institute of Biomedical Science of University of São Paulo, São Paulo, Brazil.,Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Luciano M Thomazelli
- Laboratory of Clinical and Molecular Virology, Department of Microbiology, Institute of Biomedical Science of University of São Paulo, São Paulo, Brazil
| | - Fernanda R Monteiro
- Ear, Nose and Throat (ENT) Lab, Department of Otorhinolaryngology, Federal University of São Paulo, São Paulo, Brazil.,Method Faculty of São Paulo, São Paulo, Brazil
| | | | - Juliana S Apostólico
- Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo, Brazil
| | - Carolina N França
- Post-Graduation Program in Health Science, University of Santo Amaro, São Paulo, Brazil
| | - Jonatas B Amaral
- Ear, Nose and Throat (ENT) Lab, Department of Otorhinolaryngology, Federal University of São Paulo, São Paulo, Brazil
| | - Gislene R Amirato
- Ear, Nose and Throat (ENT) Lab, Department of Otorhinolaryngology, Federal University of São Paulo, São Paulo, Brazil
| | - Rodolfo P Vieira
- Post-Graduation Program in Sciences of Human Movement and Rehabilitation, Federal University of São Paulo, Santos, Brazil.,Post-Graduation Program in Bioengineering, Universidade Brasil, São Paulo, Brazil.,Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Sao Jose dos Campos, Brazil
| | - Mauro Vaisberg
- Ear, Nose and Throat (ENT) Lab, Department of Otorhinolaryngology, Federal University of São Paulo, São Paulo, Brazil
| | - André L L Bachi
- Post-Graduation Program in Health Science, University of Santo Amaro, São Paulo, Brazil.,Ear, Nose and Throat (ENT) Lab, Department of Otorhinolaryngology, Federal University of São Paulo, São Paulo, Brazil.,Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Sao Jose dos Campos, Brazil
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7
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Neuroinflammation and Hypothalamo-Pituitary Dysfunction: Focus of Traumatic Brain Injury. Int J Mol Sci 2021; 22:ijms22052686. [PMID: 33799967 PMCID: PMC7961958 DOI: 10.3390/ijms22052686] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/28/2021] [Accepted: 03/04/2021] [Indexed: 12/17/2022] Open
Abstract
The incidence of traumatic brain injury (TBI) has increased over the last years with an important impact on public health. Many preclinical and clinical studies identified multiple and heterogeneous TBI-related pathophysiological mechanisms that are responsible for functional, cognitive, and behavioral alterations. Recent evidence has suggested that post-TBI neuroinflammation is responsible for several long-term clinical consequences, including hypopituitarism. This review aims to summarize current evidence on TBI-induced neuroinflammation and its potential role in determining hypothalamic-pituitary dysfunctions.
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8
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Genebat M, Tarancón-Díez L, de Pablo-Bernal R, Calderón A, Muñoz-Fernández MÁ, Leal M. Coronavirus Disease (COVID-19): A Perspective from Immunosenescence. Aging Dis 2021; 12:3-6. [PMID: 33532121 PMCID: PMC7801288 DOI: 10.14336/ad.2020.0831] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 08/31/2020] [Indexed: 12/23/2022] Open
Affiliation(s)
- Miguel Genebat
- 1Internal Medicine Department, Hospital Fátima, Sevilla, Spain.,2Emergency Department, Virgen del Rocío University Hospital, Sevilla, Spain
| | - Laura Tarancón-Díez
- 3Immunology Section, Laboratorio Inmuno-Biología Molecular (LIBM), Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IISGM), Madrid, Spain
| | - Rebeca de Pablo-Bernal
- 4Exterior Health Service, Spanish Government Delegation in the Canary Islands, Las Palmas de Gran Canaria, Spain
| | - Alba Calderón
- 1Internal Medicine Department, Hospital Fátima, Sevilla, Spain
| | - Mª Ángeles Muñoz-Fernández
- 3Immunology Section, Laboratorio Inmuno-Biología Molecular (LIBM), Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IISGM), Madrid, Spain
| | - Manuel Leal
- 5Infectious Diseases and Immunology Unit, Internal Medicine Department, Hospital Viamed Santa Ángela de la Cruz, Sevilla, Spain
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9
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Rosado-Sánchez I, De Pablo-Bernal R, Rull A, Gónzalez J, Moreno S, Vinuesa D, Estrada V, Muñoz-Fernández MÁ, Vidal F, Leal M, Pacheco YM. Increased Frequencies of Myeloid-Derived Suppressor Cells Precede Immunodiscordance in HIV-Infected Subjects. Front Immunol 2020; 11:581307. [PMID: 33240269 PMCID: PMC7677300 DOI: 10.3389/fimmu.2020.581307] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/13/2020] [Indexed: 12/26/2022] Open
Abstract
Background We have previously observed increased levels of inflammatory biomarkers and Th17 as well as Treg cells, but not other T-cell specific alterations, preceding immunodiscordance of successfully-treated HIV-infected subjects. Our hypothesis is that this could be related with potential alterations in myeloid-derived suppressor cells (MDSCs) and/or monocyte subsets. Methods We determined the frequencies of MDSCs and monocyte subsets and the expression of several functional markers (CCR2, β7-integrin, IDO, PDL1, CD11b) in HIV-infected subjects before treatment. We additionally analyzed follow-up samples after 24 months of suppressive cART in a subgroup of subjects. Bivariate regressions were performed, and correlations with soluble proinflammatory and bacterial translocation biomarkers, as well as with Th17/Treg ratio and anti-CMV titers were explored. Results Increased frequencies of MDSCs, but normal distribution of monocyte subsets, preceded immunodiscordance. The expression of several functional markers, such as CCR2, CD16, CD11b and PDL1, on MDSCs and monocyte subsets was altered in this scenario. MDSC and monocyte-related functional markers were associated with soluble biomarkers and T-cell parameters. Several of these cellular alterations were not restored after 24 months of suppressive cART. Conclusion An early immunosuppressive environment, characterized by the expansion of MDSCs and Tregs, precedes immunodiscordance and is related with a highly inflammatory status.
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Affiliation(s)
- Isaac Rosado-Sánchez
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital (HUVR)/Consejo Superior de Investigaciones Científicas (CSIC)/University of Seville, Seville, Spain
| | - Rebeca De Pablo-Bernal
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital (HUVR)/Consejo Superior de Investigaciones Científicas (CSIC)/University of Seville, Seville, Spain
| | - Anna Rull
- Universitat Rovira i Virgili, Instituto de Investigación Sanitaria Pere Virgili (IISPV), Hospital Universitari de Tarragona Joan XXIII, Tarragona, Spain
| | - Juan Gónzalez
- Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital Universitario La Paz, Madrid, Spain
| | - Santiago Moreno
- Servicio de Enfermedades Infecciosas, Hospital Ramón y Cajal, Madrid, Spain
| | - David Vinuesa
- Unidad de Enfermedades Infecciosas, Hospital Universitario, Universitario San Cecilio, Granada, Spain
| | | | - María Ángeles Muñoz-Fernández
- Molecular Immunology Laboratory, Hospital General Universitario Gregorio Marañón, Madrid, Spain.,Health Research Institute Gregorio Marañón (IiSGM), Spanish HIV HGM BioBank, Madrid, Spain.,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Francesc Vidal
- Universitat Rovira i Virgili, Instituto de Investigación Sanitaria Pere Virgili (IISPV), Hospital Universitari de Tarragona Joan XXIII, Tarragona, Spain
| | - Manuel Leal
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital (HUVR)/Consejo Superior de Investigaciones Científicas (CSIC)/University of Seville, Seville, Spain.,Internal Medicine Service, Hospital Viamed Santa Ángela de la Cruz, Seville, Spain
| | - Yolanda María Pacheco
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital (HUVR)/Consejo Superior de Investigaciones Científicas (CSIC)/University of Seville, Seville, Spain
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10
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Tavenier J, Rasmussen LJH, Houlind MB, Andersen AL, Panum I, Andersen O, Petersen J, Langkilde A, Nehlin JO. Alterations of monocyte NF-κB p65/RelA signaling in a cohort of older medical patients, age-matched controls, and healthy young adults. Immun Ageing 2020; 17:25. [PMID: 33685482 PMCID: PMC7938715 DOI: 10.1186/s12979-020-00197-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Altered monocyte NF-κB signaling is a possible cause of inflammaging and driver of aging, however, evidence from human aging studies is sparse. We assessed monocyte NF-κB signaling across different aging trajectories by comparing healthy older adults to older adults with a recent emergency department (ED) admission and to young adults. METHODS We used data from: 52 older (≥65 years) Patients collected upon ED admission and at follow-up 30-days after discharge; 52 age- and sex-matched Older Controls without recent hospitalization; and 60 healthy Young Controls (20-35 years). Using flow cytometry, we assessed basal NF-κB phosphorylation (pNF-κB p65/RelA; Ser529) and induction of pNF-κB following stimulation with LPS or TNF-α in monocytes. We assessed frailty (FI-OutRef), physical and cognitive function, and plasma levels of IL-6, IL-18, TNF-α, and soluble urokinase plasminogen activator receptor. RESULTS Patients at follow-up were frailer, had higher levels of inflammatory markers and decreased physical and cognitive function than Older Controls. Patients at follow-up had higher basal pNF-κB levels than Older Controls (median fluorescence intensity (MFI): 125, IQR: 105-153 vs. MFI: 80, IQR: 71-90, p < 0.0001), and reduced pNF-κB induction in response to LPS (mean pNF-κB MFI fold change calculated as the log10 ratio of LPS-stimulation to the PBS-control: 0.10, 95% CI: 0.08 to 0.12 vs. 0.13, 95% CI: 0.10 to 0.15, p = 0.05) and TNF-α stimulation (0.02, 95% CI: - 0.00 to 0.05 vs. 0.10, 95% CI: 0.08 to 0.12, p < 0.0001). Older Controls had higher levels of inflammatory markers than Young Controls, but basal pNF-κB MFI did not differ between Older and Young Controls (MFI: 81, IQR: 70-86; p = 0.72). Older Controls had reduced pNF-κB induction in response to LPS and TNF-α compared to Young Controls (LPS: 0.40, 95% CI: 0.35 to 0.44, p < 0.0001; and TNF-α: 0.33, 95% CI: 0.27 to 0.40, p < 0.0001). In Older Controls, basal pNF-κB MFI was associated with FI-OutRef (p = 0.02). CONCLUSIONS Increased basal pNF-κB activity in monocytes could be involved in the processes of frailty and accelerated aging. Furthermore, we show that monocyte NF-κB activation upon stimulation was impaired in frail older adults, which could result in reduced immune responses and vaccine effectiveness.
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Affiliation(s)
- Juliette Tavenier
- Department of Clinical Research, Copenhagen University Hospital Hvidovre, 2650, Hvidovre, Denmark.
| | - Line Jee Hartmann Rasmussen
- Department of Clinical Research, Copenhagen University Hospital Hvidovre, 2650, Hvidovre, Denmark
- Department of Psychology and Neuroscience, Duke University, Durham, NC, 27708, USA
| | - Morten Baltzer Houlind
- Department of Clinical Research, Copenhagen University Hospital Hvidovre, 2650, Hvidovre, Denmark
- The Capital Region Pharmacy, 2730, Herlev, Denmark
- Department of Drug Design and Pharmacology, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Aino Leegaard Andersen
- Department of Clinical Research, Copenhagen University Hospital Hvidovre, 2650, Hvidovre, Denmark
| | - Inge Panum
- Department of Clinical Microbiology, Copenhagen University Hospital Hvidovre, 2650, Hvidovre, Denmark
| | - Ove Andersen
- Department of Clinical Research, Copenhagen University Hospital Hvidovre, 2650, Hvidovre, Denmark.
- Emergency Department, Copenhagen University Hospital Amager and Hvidovre, 2650, Hvidovre, Denmark.
- Department of Clinical Medicine, University of Copenhagen, 2200, Copenhagen, Denmark.
| | - Janne Petersen
- Department of Clinical Research, Copenhagen University Hospital Hvidovre, 2650, Hvidovre, Denmark
- Center for Clinical Research and Prevention, Copenhagen University Hospital, 2000, Frederiksberg, Denmark
- Section of Biostatistics, Department of Public Health, University of Copenhagen, 1014, Copenhagen, Denmark
| | - Anne Langkilde
- Department of Clinical Research, Copenhagen University Hospital Hvidovre, 2650, Hvidovre, Denmark
| | - Jan O Nehlin
- Department of Clinical Research, Copenhagen University Hospital Hvidovre, 2650, Hvidovre, Denmark
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11
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De Pablo-Bernal RS, Jimenez-Leon MR, Tarancon-Diez L, Gutierrez-Valencia A, Serna-Gallego A, Trujillo-Rodriguez M, Alvarez-Rios AI, Milanes-Guisado Y, Espinosa N, Roca-Oporto C, Viciana P, Lopez-Cortes LF, Ruiz-Mateos E. Modulation of Monocyte Activation and Function during Direct Antiviral Agent Treatment in Patients Coinfected with HIV and Hepatitis C Virus. Antimicrob Agents Chemother 2020; 64:e00773-20. [PMID: 32571815 PMCID: PMC7449156 DOI: 10.1128/aac.00773-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 06/15/2020] [Indexed: 12/16/2022] Open
Abstract
The activation phenotypes and functional changes in monocyte subsets during hepatitis C virus (HCV) elimination in HIV/HCV-coinfected patients were evaluated. Twenty-two HIV/HCV-coinfected patients on suppressive combination antiretroviral treatment (cART) achieving HCV elimination after direct-acting antiviral (DAA) therapy and 10 HIV-monoinfected patients were included. The activation phenotype (10 markers) and polyfunctionality (intracellular interleukin-1α [IL-1α], IL-1β, IL-6, IL-8, tumor necrosis factor alpha [TNF-α], and IL-10 production) in three monocyte subsets (classical, intermediate, and nonclassical) were evaluated by flow cytometry before and at the end of treatment. Cell-associated HIV DNA levels were assayed by droplet digital PCR. After HCV clearance, there was a significant increase in classical monocyte and decreases in intermediate and nonclassical monocyte levels. The levels of the activation markers CD49d, CD40, and CX3CR1 were decreased after treatment in the monocyte subsets, reaching the levels in HIV-monoinfected patients. After lipopolysaccharide (LPS) stimulation, although polyfunctionality significantly decreased in intermediate and nonclassical monocytes, some combinations, such as the IL-1α- (IL-1α-negative) IL-1β- IL-6+ (IL-6-producing) IL-8- TNF-α- IL-10- combination, were remarkably increased at the end of treatment compared to the control group. Cell-associated HIV DNA levels correlated with activation markers before but not after treatment. HCV clearance after DAA treatment in patients on cART exerts an anti-inflammatory profile on monocyte subsets, activation phenotypes, and polyfunctionality. However, there is not a complete normalization compared with HIV-monoinfected patients.
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Affiliation(s)
- Rebeca S De Pablo-Bernal
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - M Reyes Jimenez-Leon
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Laura Tarancon-Diez
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Alicia Gutierrez-Valencia
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Ana Serna-Gallego
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Maria Trujillo-Rodriguez
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Ana I Alvarez-Rios
- Department of Clinical Biochemistry, Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Yusnelkis Milanes-Guisado
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Nuria Espinosa
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Cristina Roca-Oporto
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Pompeyo Viciana
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Luis F Lopez-Cortes
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Ezequiel Ruiz-Mateos
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
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12
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Zapata HJ, Van Ness PH, Avey S, Siconolfi B, Allore HG, Tsang S, Wilson J, Barakat L, Mohanty S, Shaw AC. Impact of Aging and HIV Infection on the Function of the C-Type Lectin Receptor MINCLE in Monocytes. J Gerontol A Biol Sci Med Sci 2020; 74:794-801. [PMID: 30239628 DOI: 10.1093/gerona/gly209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Indexed: 12/11/2022] Open
Abstract
Both aging and HIV infection are associated with an enhanced pro-inflammatory environment that contributes to impaired immune responses and is mediated in part by innate immune pattern-recognition receptors. MINCLE is a C-type lectin receptor that recognizes trehalose-6,6'-dimycolate or "cord factor," the most abundant glycolipid in Mycobacterium tuberculosis. Here, we evaluated MINCLE function in monocytes in a cohort of HIV-infected and uninfected young (21-35 years) and older adults (≥60 years) via stimulation of peripheral blood mononuclear cells with trehalose-6,6-dibehenate, a synthetic analog of trehalose-6,6'-dimycolate and measurement of cytokine production (interleukin [IL]-10, IL-12, IL-6, tumor necrosis factor-α) by multicolor flow cytometry. Our studies show an age- and HIV-associated increase in cytokine multifunctionality of monocytes both at the population and single cell level that was dominated by IL-12, IL-10, and IL-6. These findings provide insight into the host response to M. tuberculosis and possible sources for the pro-inflammatory environment seen in aging and HIV infection.
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Affiliation(s)
- Heidi J Zapata
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Peter H Van Ness
- Yale University Program on Aging, Yale University, New Haven, Connecticut
| | - Stefan Avey
- Interdepartmental Program in Computational Biology and Bioinformatics, Yale University, New Haven, Connecticut
| | - Barbara Siconolfi
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Heather G Allore
- Yale University Program on Aging, Yale University, New Haven, Connecticut
| | - Sui Tsang
- Yale University Program on Aging, Yale University, New Haven, Connecticut
| | - Jean Wilson
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Lydia Barakat
- Yale AIDS Care Program, Yale University, New Haven, Connecticut
| | - Subhasis Mohanty
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Albert C Shaw
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
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13
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Casado C, Galvez C, Pernas M, Tarancon-Diez L, Rodriguez C, Sanchez-Merino V, Vera M, Olivares I, De Pablo-Bernal R, Merino-Mansilla A, Del Romero J, Lorenzo-Redondo R, Ruiz-Mateos E, Salgado M, Martinez-Picado J, Lopez-Galindez C. Permanent control of HIV-1 pathogenesis in exceptional elite controllers: a model of spontaneous cure. Sci Rep 2020; 10:1902. [PMID: 32024974 PMCID: PMC7002478 DOI: 10.1038/s41598-020-58696-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/27/2019] [Indexed: 11/09/2022] Open
Abstract
Elite controllers (EC) represent a small subset of HIV-1-infected people that spontaneously control viral replication. However, natural virological suppression and absence of immune dysfunction are not always long-term sustained. We define exceptional EC (EEC) as HIV-1 subjects who maintain the EC characteristics without disease progression for more than 25 years. We analyzed three EEC, diagnosed between 1988 and 1992, who never showed signs of clinical disease progression in absence of any antiretroviral treatment. A comprehensive clinical, virological, and immunological study was performed. The individuals simultaneously exhibited ≥3 described host protective alleles, low levels of total HIV-1 DNA (<20 copies/106 CD4+ T-cells) without evidence of replication-competent viruses (<0.025 IUPM), consistent with high levels of defective genomes, strong cellular HIV-1-specific immune response, and a high poly-functionality index (>0.50). Inflammation levels of EEC were similar to HIV-1 negative donors. Remarkably, they showed an exceptional lack of viral evolution and 8-fold lower genetic diversity (<0.01 s/n) in env gene than other EC. We postulate that these EEC represent cases of spontaneous functional HIV-1 cure. A non-functional and non-genetically evolving viral reservoir along with an HIV-1-specific immune response seems to be key for the spontaneous functional cure.
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Affiliation(s)
- Concepcion Casado
- Virología Molecular, Laboratorio de Referencia e Investigación en Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Cristina Galvez
- AIDS Research Institute IrsiCaixa, Badalona, Spain
- Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Maria Pernas
- Virología Molecular, Laboratorio de Referencia e Investigación en Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Laura Tarancon-Diez
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Carmen Rodriguez
- Centro Sanitario Sandoval, Hospital Clínico San Carlos. IdISSC, Madrid, Spain
| | - Víctor Sanchez-Merino
- AIDS Immunopathology Unit. Laboratorio de Referencia e Investigación en Retrovirus. Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Mar Vera
- Centro Sanitario Sandoval, Hospital Clínico San Carlos. IdISSC, Madrid, Spain
| | - Isabel Olivares
- Virología Molecular, Laboratorio de Referencia e Investigación en Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Rebeca De Pablo-Bernal
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | - Alberto Merino-Mansilla
- AIDS Immunopathology Unit. Laboratorio de Referencia e Investigación en Retrovirus. Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Jorge Del Romero
- Centro Sanitario Sandoval, Hospital Clínico San Carlos. IdISSC, Madrid, Spain
| | - Ramon Lorenzo-Redondo
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, Illinois, 60011, USA
| | - Ezequiel Ruiz-Mateos
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, CSIC, University of Seville, Seville, Spain
| | | | - Javier Martinez-Picado
- AIDS Research Institute IrsiCaixa, Badalona, Spain.
- University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain.
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain.
| | - Cecilio Lopez-Galindez
- Virología Molecular, Laboratorio de Referencia e Investigación en Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain.
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14
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Fromm PD, Silveira PA, Hsu JL, Papadimitrious MS, Lo TH, Ju X, Kupresanin F, Romano A, Hsu WH, Bryant CE, Kong B, Abadir E, Mekkawy A, M McGuire H, Groth BFDS, Cunningham I, Newman E, Gibson J, Hogarth PM, Hart DNJ, Clark GJ. Distinguishing human peripheral blood CD16 + myeloid cells based on phenotypic characteristics. J Leukoc Biol 2019; 107:323-339. [PMID: 31749181 DOI: 10.1002/jlb.5a1119-362rrr] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 12/28/2022] Open
Abstract
Myeloid lineage cells present in human peripheral blood include dendritic cells (DC) and monocytes. The DC are identified phenotypically as HLA-DR+ cells that lack major cell surface lineage markers for T cells (CD3), B cells (CD19, CD20), NK cells (CD56), red blood cells (CD235a), hematopoietic stem cells (CD34), and Mo that express CD14. Both DC and Mo can be phenotypically divided into subsets. DC are divided into plasmacytoid DC, which are CD11c- , CD304+ , CD85g+ , and myeloid DC that are CD11c+ . The CD11c+ DC are readily classified as CD1c+ DC and CD141+ DC. Monocytes are broadly divided into the CD14+ CD16- (classical) and CD14dim CD16+ subsets (nonclassical). A population of myeloid-derived cells that have DC characteristics, that is, HLA-DR+ and lacking lineage markers including CD14, but express CD16 are generally clustered with CD14dim CD16+ monocytes. We used high-dimensional clustering analyses of fluorescence and mass cytometry data, to delineate CD14+ monocytes, CD14dim CD16+ monocytes (CD16+ Mo), and CD14- CD16+ DC (CD16+ DC). We sought to identify the functional and kinetic relationship of CD16+ DC to CD16+ Mo. We demonstrate that differentiation of CD16+ DC and CD16+ Mo during activation with IFNγ in vitro and as a result of an allo-hematopoietic cell transplant (HCT) in vivo resulted in distinct populations. Recovery of blood CD16+ DC in both auto- and allo-(HCT) patients after myeloablative conditioning showed similar reconstitution and activation kinetics to CD16+ Mo. Finally, we show that expression of the cell surface markers CD300c, CCR5, and CLEC5a can distinguish the cell populations phenotypically paving the way for functional differentiation as new reagents become available.
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Affiliation(s)
- Phillip D Fromm
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Pablo A Silveira
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Jennifer L Hsu
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia
| | - Michael S Papadimitrious
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Tsun-Ho Lo
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Xinsheng Ju
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Fiona Kupresanin
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia
| | - Adelina Romano
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Department of Pathology, The University of Sydney, Sydney, New South Wales, Australia
| | - Wei-Hsun Hsu
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Christian E Bryant
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Benjamin Kong
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Edward Abadir
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Ahmed Mekkawy
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia
| | - Helen M McGuire
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia.,Department of Pathology, The University of Sydney, Sydney, New South Wales, Australia
| | - Barbara Fazekas de St Groth
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia.,Department of Pathology, The University of Sydney, Sydney, New South Wales, Australia
| | - Ilona Cunningham
- Department of Haematology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - Elizabeth Newman
- Department of Haematology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - John Gibson
- Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - P Mark Hogarth
- Immune Therapies Group, Burnet Institute, Melbourne, Victoria, Australia
| | - Derek N J Hart
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia.,Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Georgina J Clark
- Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia.,Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia.,Department of Haematology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
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15
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Patel AA, Yona S. Inherited and Environmental Factors Influence Human Monocyte Heterogeneity. Front Immunol 2019; 10:2581. [PMID: 31787976 PMCID: PMC6854020 DOI: 10.3389/fimmu.2019.02581] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/17/2019] [Indexed: 12/12/2022] Open
Abstract
Blood monocytes develop in the bone marrow before being released into the peripheral circulation. The circulating monocyte pool is composed of multiple subsets, each with specialized functions. These cells are recruited to repopulate resident monocyte-derived cells in the periphery and also to sites of injury. Several extrinsic factors influence the function and quantity of monocytes in the blood. Here, we outline the impact of sex, ethnicity, age, sleep, diet, and exercise on monocyte subsets and their function, highlighting that steady state is not a single physiological condition. A clearer understanding of the relationship between these factors and the immune system may allow for improved therapeutic strategies.
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Affiliation(s)
- Amit A. Patel
- Division of Medicine, University College London, University of London, London, United Kingdom
| | - Simon Yona
- The Institute of Dental Sciences, Hebrew University, Jerusalem, Israel
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16
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Abstract
PURPOSE OF REVIEW Platelets are specialized effector cells that rapidly respond to sites of vascular injury. However, emerging data demonstrate that platelets possess diverse functions that also mediate inflammatory responses and neurological diseases. These functions are relevant to disease processes prevalent among older adults and likely influence susceptibility to thrombotic and inflammatory disorders. RECENT FINDINGS Platelet counts decrease in aged individuals whereas platelet reactivity increases. The platelet transcriptome is altered in aged individuals resulting in altered platelet function and exaggerated inflammation. Platelet signaling to monocytes in aging results in significantly more cytokines because of increased platelet-derived granzyme A. Platelet activation in aging appears to be driven, in part, because of increased reactive oxygen species and activation of the mammalian target of rapamycin pathway. Increased platelet hyperactivity in diseases is associated with aging, such cardiovascular disease and sepsis, exaggerate inflammation and thrombosis. Noncanonical functions of platelets influence the development of neurological diseases including Alzheimer's disease. SUMMARY Although there have been advances dissecting the molecular mechanisms regarding aging-related changes in platelets, many knowledge gaps still remain. Studies filling these gaps are likely to identify new mechanisms driving aging-related changes in platelet gene expression and function, and contributing to injurious thrombo-inflammation in older adults.
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Affiliation(s)
- Emilie Montenont
- University of Utah Molecular Medicine Program, Salt Lake City, Utah, 84112
| | - Matthew T. Rondina
- University of Utah Molecular Medicine Program, Salt Lake City, Utah, 84112
- Department of Internal Medicine, University of Utah, Salt Lake City, Utah, 84132
- George E. Wahlen VAMC Department of Internal Medicine and GRECC, Salt Lake City, Utah, 84148
| | - Robert A. Campbell
- University of Utah Molecular Medicine Program, Salt Lake City, Utah, 84112
- Department of Internal Medicine, University of Utah, Salt Lake City, Utah, 84132
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17
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Aging, Immunity, and Neuroinflammation: The Modulatory Potential of Nutrition. NUTRITION AND IMMUNITY 2019. [PMCID: PMC7123246 DOI: 10.1007/978-3-030-16073-9_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Aging influences an organism’s entire physiology, affecting functions at the molecular, cellular, and systemic levels and increasing susceptibility to many major chronic diseases. The changes in the immune system that accompany human aging are very complex and are generally referred to as immunosenescence. The factors and mechanisms of immunosenescence are multiple and include, among others, defects in the bone marrow, thymic involution, and intrinsic defects in the formation, maturation, homeostasis, and migration of peripheral lymphocytes. Aging affects both the innate and adaptive arms of the immune system. The process of aging is commonly accompanied by low-grade inflammation thought to contribute to neuroinflammation and to many age-related diseases. Numerous attempts to define the role of chronic inflammation in aging have implicated chronic oxidative stress, mitochondrial damage, immunosenescence, epigenetic modifications, and other phenomena. Several lifestyle strategies, such as intervening to provide an adequate diet and physical and mental activity, have been shown to result in improved immune and neuroprotective functions, a decrease in oxidative stress and inflammation, and a potential increase in individual longevity. The studies published thus far describe a critical role for nutrition in maintaining the immune response of the aged, but they also indicate the need for a more in-depth, holistic approach to determining the optimal nutritional and behavioral strategies that would maintain immune and other physiological systems in elderly people. In this chapter, we focus first on the age-related changes of the immune system. Further, we discuss possible deleterious influences of immunosenescence and low-grade inflammation (inflammaging) on neurodegenerative processes in the normally aging brain. Finally, we consider our current understanding of the modulatory potential of nutrition that may mediate anti-inflammatory effects and thus positively affect immunity and the aging brain.
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18
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Campbell RA, Franks Z, Bhatnagar A, Rowley JW, Manne BK, Supiano MA, Schwertz H, Weyrich AS, Rondina MT. Granzyme A in Human Platelets Regulates the Synthesis of Proinflammatory Cytokines by Monocytes in Aging. THE JOURNAL OF IMMUNOLOGY 2017; 200:295-304. [PMID: 29167233 DOI: 10.4049/jimmunol.1700885] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 10/30/2017] [Indexed: 12/13/2022]
Abstract
Dysregulated inflammation is implicated in the pathobiology of aging, yet platelet-leukocyte interactions and downstream cytokine synthesis in aging remains poorly understood. Platelets and monocytes were isolated from healthy younger (age <45, n = 37) and older (age ≥65, n = 30) adults and incubated together under autologous and nonautologous conditions. Synthesis of inflammatory cytokines by monocytes, alone or in the presence of platelets, was examined. Next-generation RNA-sequencing allowed for unbiased profiling of the platelet transcriptome in aging. Basal IL-8 and MCP-1 synthesis by monocytes alone did not differ between older and younger adults. However, in the presence of autologous platelets, monocytes from older adults synthesized greater IL-8 (41 ± 5 versus 9 ± 2 ng/ml, p < 0.0001) and MCP-1 (867 ± 150 versus 216 ± 36 ng/ml, p < 0.0001) than younger adults. Platelets from older adults were sufficient for upregulating the synthesis of inflammatory cytokines by monocytes. Using RNA-sequencing of platelets followed by validation via RT-PCR and immunoblot, we discovered that granzyme A (GrmA), a serine protease not previously identified in human platelets, increases with aging (∼9-fold versus younger adults, p < 0.05) and governs increased IL-8 and MCP-1 synthesis through TLR4 and caspase-1. Inhibiting GrmA reduced excessive IL-8 and MCP-1 synthesis in aging to levels similar to younger adults. In summary, human aging is associated with changes in the platelet transcriptome and proteome. GrmA is present and bioactive in human platelets, is higher in older adults, and controls the synthesis of inflammatory cytokines by monocytes. Alterations in the platelet molecular signature and signaling to monocytes may contribute to dysregulated inflammatory syndromes in older adults.
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Affiliation(s)
- Robert A Campbell
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112.,Division of General Internal Medicine, Department of Internal Medicine, School of Medicine, University of Utah, Salt Lake City, UT 84132
| | - Zechariah Franks
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112
| | - Anish Bhatnagar
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112
| | - Jesse W Rowley
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112.,Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, University of Utah, Salt Lake City, UT 84132
| | - Bhanu K Manne
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112
| | - Mark A Supiano
- George E. Wahlen Veterans Affairs Medical Center, Geriatric Research, Education and Clinical Center, Salt Lake City, UT 84148.,Division of Geriatrics, School of Medicine, University of Utah, Salt Lake City, UT 84132; and
| | - Hansjorg Schwertz
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112.,Division of Vascular Surgery, School of Medicine, University of Utah, Salt Lake City, UT 84132
| | - Andrew S Weyrich
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112.,Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, University of Utah, Salt Lake City, UT 84132
| | - Matthew T Rondina
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112; .,Division of General Internal Medicine, Department of Internal Medicine, School of Medicine, University of Utah, Salt Lake City, UT 84132.,George E. Wahlen Veterans Affairs Medical Center, Geriatric Research, Education and Clinical Center, Salt Lake City, UT 84148
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19
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Rosado-Sánchez I, Herrero-Fernández I, Tarancon-Diez L, Moreno S, Iribarren JA, Dalmau D, Vera-Méndez F, Leal M, Pacheco YM. Increased frequencies of Th17 cells and IL17a-producing regulatory T-cells preceding the immunodiscordant response to antiretroviral treatment. J Infect 2017; 76:86-92. [PMID: 29079322 DOI: 10.1016/j.jinf.2017.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/04/2017] [Accepted: 10/12/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Despite the fact that antiretroviral therapy (cART) suppresses HIV-viremia, an adequate CD4 T-cell recovery is not always achieved (immunodiscordant response to cART). IL17a-producing CD4 T-cells (Th17) constitutes an important subset involved in the preservation of mucosal surfaces integrity, which depletion has been associated with disease progression in HIV-infection. However, whether Th17 frequency at cART initiation is associated with a poor CD4 T-cell recovery has not been yet explored. Our aim was to explore whether the Th17 cells and other IL17a-producing T-cell subsets at cART initiation were associated with a subsequent immunodiscordant response to cART. METHODS We selected pre-cART samples of antiretroviral-naïve subjects with and without a low CD4 recovery after cART (LR-subjects and HR-subjects, respectively). Peripheral blood mononuclear cells (PBMCs) were stimulated with PMA/ionomycine, and the production of several cytokines including IL17a was analyzed by flow cytometry. RESULTS A trend to higher Th17 (p = 0.05) and increased frequencies of IL17a-producing Treg (p = 0.011) was found in LR-subjects before cART onset. Despite increased frequencies of both Treg and Th17 in LR-subject at cART initiation, no alteration of Treg/Th17 ratio was observed. While polifunctional profile of CD4 T-cells was not different, frequencies of CD4 T-cells producing cytokine-combinations including IL17a were increased in LR-subjects. CONCLUSION Increased frequencies of Th17, IL17a-producing Treg and CD4 T-cells producing specific IL17a-containing combinations of cytokines, precede the immunodiscordant response to cART, suggesting a potential contribution of these subsets in such anomalous response to cART.
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Affiliation(s)
- Isaac Rosado-Sánchez
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville 41013, Spain.
| | - Inés Herrero-Fernández
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville 41013, Spain
| | - Laura Tarancon-Diez
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville 41013, Spain
| | | | | | - David Dalmau
- Mútua Terrassa University Hospital, Terrassa 08221, Spain
| | | | - Manuel Leal
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville 41013, Spain
| | - Yolanda María Pacheco
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville 41013, Spain.
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20
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Haq K, Fulop T, Tedder G, Gentleman B, Garneau H, Meneilly GS, Kleppinger A, Pawelec G, McElhaney JE. Cytomegalovirus Seropositivity Predicts a Decline in the T Cell But Not the Antibody Response to Influenza in Vaccinated Older Adults Independent of Type 2 Diabetes Status. J Gerontol A Biol Sci Med Sci 2017; 72:1163-1170. [PMID: 27789617 PMCID: PMC5861868 DOI: 10.1093/gerona/glw216] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 10/20/2016] [Indexed: 12/17/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) and persistent cytomegalovirus (CMV) infection are postulated contributors to inflammatory processes that impact on the age-related decline in T-cell responses to influenza vaccination. Older subjects with T2DM (n = 30) and healthy aged controls (n = 40) were enrolled and received influenza vaccination in this study. Serum inflammatory markers and CMV serostatus were measured. Pre- to post-vaccination changes in serum antibody titers to the A/H3N2 strain, and levels of granzyme B (GrB, cytotoxic T lymphocytes) in lysates and cytokines in supernatants from influenza A/H3N2-challenged peripheral blood mononuclear cells were measured. We found no difference between the T2DM and healthy groups in the immune responses measured. However, CMV serostatus was a key determinant of the GrB response to influenza challenge; CMV+ subjects had low levels of inducible GrB (iGrB) activity in response to influenza challenge. In contrast, the serum antibody response to the A/H3N2 vaccine strain did not differ with CMV serostatus, and serum levels of the inflammatory marker, β2-microglobulin, were positively correlated with age, T2DM, and serum IL-10 levels. In conclusion, CMV seropositivity associated with a decline in GrB responses to influenza may predict increased susceptibility to influenza in older adults.
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Affiliation(s)
- Kamran Haq
- Health Sciences North Research Institute, Sudbury, ON, Canada
| | - Tamas Fulop
- Research Center on Aging, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Gale Tedder
- Department of Medicine, University of British Columbia, Vancouver, Canada
| | - Beth Gentleman
- Health Sciences North Research Institute, Sudbury, ON, Canada
| | - Hugo Garneau
- Research Center on Aging, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Graydon S Meneilly
- Department of Medicine, University of British Columbia, Vancouver, Canada
| | | | - Graham Pawelec
- Second Department of Internal Medicine, University of Tübingen Medical School, Tübingen, Germany.,School of Science and Technology, College of Arts and Science, Nottingham Trent University, Nottingham, UK
| | - Janet E McElhaney
- Health Sciences North Research Institute, Sudbury, ON, Canada.,University of Connecticut Center on Aging, Farmington
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21
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Arnetz BB, Lewalski P, Arnetz J, Breejen K, Przyklenk K. Examining self-reported and biological stress and near misses among Emergency Medicine residents: a single-centre cross-sectional assessment in the USA. BMJ Open 2017; 7:e016479. [PMID: 28814584 PMCID: PMC5629729 DOI: 10.1136/bmjopen-2017-016479] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVES To examine the relationship between perceived and biological stress and near misses among Emergency Medicine residents. DESIGN Self-rated stress and stress biomarkers were assessed in residents in Emergency Medicine before and after a day shift. The supervising physicians and residents reported numbers of near misses. SETTING The study took place in the Emergency Department of a large trauma 1 centre, located in Detroit, USA. PARTICIPANTS Residents in Emergency Medicine volunteered to participate. The sample consisted of 32 residents, with complete data on 28 subjects. Residents' supervising physicians assessed the clinical performance of each resident. PRIMARY AND SECONDARY OUTCOME MEASURES Participants' preshift and postshift stress, biological stress (salivary cortisol, plasma interleukin-6, tumour necrosis factor-alpha (TNF-α) and high-sensitivity C-reactive protein), residents' and supervisors' reports of near misses, number of critically ill and patients with trauma seen during the shift. RESULTS Residents' self-reported stress increased from an average preshift level of 2.79 of 10 (SD 1.81) to a postshift level of 5.82 (2.13) (p<0.001). Residents cared for an average of 2.32 (1.52) critically ill patients and 0.68 (1.06) patients with trauma. Residents reported a total of 7 near misses, compared with 11 reported by the supervising physicians. After controlling for baseline work-related exhaustion, residents that cared for more patients with trauma and had higher levels of TNF-α reported a higher frequency of near misses (R2=0.72; p=0.001). Residents' preshift ratings of how stressful they expected the shift to be were related to the supervising physicians' ratings of residents' near misses during the shift. CONCLUSION Residents' own ratings of near misses were associated with residents' TNF-α, a biomarker of systemic inflammation and the number of patients with trauma seen during the shift. In contrast, supervisor reports on residents' near misses were related only to the residents' preshift expectations of how stressful the shift would be.
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Affiliation(s)
- Bengt B Arnetz
- Department of Family Medicine, College of Human Medicine, Michigan State University, Michigan, USA
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Philip Lewalski
- Department of Emergency Medicine, Wayne State University School of Medicine, Michigan, USA
| | - Judy Arnetz
- Department of Family Medicine, College of Human Medicine, Michigan State University, Michigan, USA
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Karen Breejen
- Department of Family Medicine, College of Human Medicine, Michigan State University, Michigan, USA
| | - Karin Przyklenk
- Department of Emergency Medicine, Wayne State University School of Medicine, Michigan, USA
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, Michigan, USA
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan, USA
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22
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Impact of aging immune system on neurodegeneration and potential immunotherapies. Prog Neurobiol 2017; 157:2-28. [PMID: 28782588 DOI: 10.1016/j.pneurobio.2017.07.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 07/25/2017] [Accepted: 07/28/2017] [Indexed: 12/19/2022]
Abstract
The interaction between the nervous and immune systems during aging is an area of avid interest, but many aspects remain unclear. This is due, not only to the complexity of the aging process, but also to a mutual dependency and reciprocal causation of alterations and diseases between both the nervous and immune systems. Aging of the brain drives whole body systemic aging, including aging-related changes of the immune system. In turn, the immune system aging, particularly immunosenescence and T cell aging initiated by thymic involution that are sources of chronic inflammation in the elderly (termed inflammaging), potentially induces brain aging and memory loss in a reciprocal manner. Therefore, immunotherapeutics including modulation of inflammation, vaccination, cellular immune therapies and "protective autoimmunity" provide promising approaches to rejuvenate neuroinflammatory disorders and repair brain injury. In this review, we summarize recent discoveries linking the aging immune system with the development of neurodegeneration. Additionally, we discuss potential rejuvenation strategies, focusing aimed at targeting the aging immune system in an effort to prevent acute brain injury and chronic neurodegeneration during aging.
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23
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Reed RG, Greenberg RN, Segerstrom SC. Cytomegalovirus serostatus, inflammation, and antibody response to influenza vaccination in older adults: The moderating effect of beta blockade. Brain Behav Immun 2017; 61:14-20. [PMID: 27720816 PMCID: PMC5316354 DOI: 10.1016/j.bbi.2016.09.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/06/2016] [Accepted: 09/21/2016] [Indexed: 12/20/2022] Open
Abstract
Cytomegalovirus (CMV) has been implicated as a factor in immunosenescence, including poor antibody response to vaccination and higher immune activation and inflammation. Some people may be more or less vulnerable to the negative effects of CMV. The present investigation tested the effects of beta-blocker use and chronological age on the associations between CMV and immunity in adults aged 60-91 (N=98; 69% CMV seropositive) who were administered the trivalent influenza vaccine for up to 5years. Peak antibody response, corrected for baseline, and spring (persistent) antibody response, corrected for peak, were assessed, as well as beta-2 microglobulin (β2μ) and interleukin-6 (IL-6). In multi-level models with years at Level 1 and people at Level 2, CMV serostatus did not predict peak antibody response, but there was a 3-way interaction between CMV serostatus, age, and beta-blockers. Age was negatively associated with peak antibody, but only among adults who were CMV seropositive and taking beta-blockers. CMV seronegative adults who were not taking beta-blockers had the highest antibody persistence. CMV serostatus was not associated with β2μ or IL-6. Results suggest that CMV+ serostatus may negatively compromise antibody response to a greater degree than inflammatory markers in older adults. Furthermore, older adults who take beta-blockers may be more vulnerable to negative effects of age and CMV on peak antibody response, perhaps by virtue of their underlying health condition.
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Affiliation(s)
- Rebecca G. Reed
- Department of Psychology, College of Arts and Sciences, University of Kentucky, Lexington, KY,Corresponding author: Kastle Hall 125, Department of Psychology, University of Kentucky, Lexington, KY 40506, USA.
| | - Richard N. Greenberg
- Infectious Diseases Division, College of Medicine, University of Kentucky, Lexington, KY
| | - Suzanne C. Segerstrom
- Department of Psychology, College of Arts and Sciences, University of Kentucky, Lexington, KY
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Di Benedetto S, Müller L, Wenger E, Düzel S, Pawelec G. Contribution of neuroinflammation and immunity to brain aging and the mitigating effects of physical and cognitive interventions. Neurosci Biobehav Rev 2017; 75:114-128. [PMID: 28161508 DOI: 10.1016/j.neubiorev.2017.01.044] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/24/2017] [Accepted: 01/30/2017] [Indexed: 01/08/2023]
Abstract
It is widely accepted that the brain and the immune system continuously interact during normal as well as pathological functioning. Human aging is commonly accompanied by low-grade inflammation in both the immune and central nervous systems, thought to contribute to many age-related diseases. This review of the current literature focuses first on the normal neuroimmune interactions occurring in the brain, which promote learning, memory and neuroplasticity. Further, we discuss the protective and dynamic role of barriers to neuroimmune interactions, which have become clearer with the recent discovery of the meningeal lymphatic system. Next, we consider age-related changes of the immune system and possible deleterious influences of immunosenescence and low-grade inflammation (inflammaging) on neurodegenerative processes in the normally aging brain. We survey the major immunomodulators and neuroregulators in the aging brain and their highly tuned dynamic and reciprocal interactions. Finally, we consider our current understanding of how physical activity, as well as a combination of physical and cognitive interventions, may mediate anti-inflammatory effects and thus positively impact brain aging.
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Affiliation(s)
- Svetlana Di Benedetto
- Max Planck Institute for Human Development, Center for Lifespan Psychology, Lentzeallee 94, 14195, Berlin, Germany; Center for Medical Research, Department of Internal Medicine II, University of Tübingen, Waldhörnlestr. 22, 72072 Tübingen, Germany
| | - Ludmila Müller
- Max Planck Institute for Human Development, Center for Lifespan Psychology, Lentzeallee 94, 14195, Berlin, Germany.
| | - Elisabeth Wenger
- Max Planck Institute for Human Development, Center for Lifespan Psychology, Lentzeallee 94, 14195, Berlin, Germany
| | - Sandra Düzel
- Max Planck Institute for Human Development, Center for Lifespan Psychology, Lentzeallee 94, 14195, Berlin, Germany
| | - Graham Pawelec
- Center for Medical Research, Department of Internal Medicine II, University of Tübingen, Waldhörnlestr. 22, 72072 Tübingen, Germany
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Dominguez-Molina B, Leon A, Rodriguez C, Benito JM, Lopez-Galindez C, Garcia F, Del Romero J, Gutierrez F, Viciana P, Alcami J, Leal M, Ruiz-Mateos E. Analysis of Non-AIDS-Defining Events in HIV Controllers. Clin Infect Dis 2016; 62:1304-1309. [PMID: 26936669 DOI: 10.1093/cid/ciw120] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 02/17/2016] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Human immunodeficiency virus (HIV) controllers have the striking ability to maintain viremia at extremely low or undetectable levels without antiretroviral treatment. Even though these patients have been widely studied, information about clinical outcomes, especially concerning to non-AIDS-defining events (nADEs), is scarce. We have analyzed the frequency and rate of nADEs and their associated factors in a large multicenter HIV controller cohort. METHODS Data on nADEs were recorded for 320 HIV controllers within the multicenter Spanish AIDS Research Network HIV Controllers Cohort (ECRIS). Percentages and crude incidence rates (CIRs) per 100 person-years of follow-up (PYFU) were calculated for the entire follow-up period and for 2 separate periods: the period under control and the period after loss of control. These rates were compared with those for 632 noncontrollers. Demographic and immunological data collected from the controllers were included in a multivariate model to assess factors that were independently associated with nADEs in HIV controllers. RESULTS HIV controllers experience nADEs, albeit at lower rates than patients who do not spontaneously control the virus (1.252 [95% confidence interval {CI}, .974-1.586] per 100 PYFU and 2.481 [95% CI, 2.153-2.845] per 100 PYFU, respectively; P < .001). Hepatitis C virus (HCV) coinfection was the main factor associated with nADEs in all of the studied periods. Although hepatic events were the most prevalent, they represented only approximately 30% of the total events. CIRs of cardiovascular events increased in the post-loss-of-control period. CONCLUSIONS HCV/HIV coinfection was the main factor associated with hepatic and extrahepatic nADEs in HIV controllers. The eradication of HCV infection may ameliorate the presence of comorbidities in these patients.
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Affiliation(s)
- Beatriz Dominguez-Molina
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital
| | - Agathe Leon
- Infectious Diseases Unit, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona
| | - Carmen Rodriguez
- Centro Sanitario Sandoval, Instituto de Investigacion Sanitaria San Carlos (IdISSC)
| | - Jose M Benito
- Instituto de Investigacion Sanitaria-Fundacion Jimenez Díaz (IIS-FJD), Universidad Autonoma de Madrid (UAM)
| | | | - Felipe Garcia
- Infectious Diseases Unit, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona
| | - Jorge Del Romero
- Centro Sanitario Sandoval, Instituto de Investigacion Sanitaria San Carlos (IdISSC)
| | - Felix Gutierrez
- Hospital General de Elche and Universidad Miguel Hernández, Alicante
| | - Pompeyo Viciana
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital
| | - Jose Alcami
- AIDS Immunopathology Unit, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Manuel Leal
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital
| | - Ezequiel Ruiz-Mateos
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital
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De Pablo-Bernal RS, Ramos R, Genebat M, Cañizares J, Rafii-El-Idrissi Benhnia M, Muñoz-Fernández MA, Pacheco YM, Galvá MI, Leal M, Ruiz-Mateos E. Phenotype and Polyfunctional Deregulation Involving Interleukin 6 (IL-6)- and IL-10-Producing Monocytes in HIV-Infected Patients Receiving Combination Antiretroviral Therapy Differ From Those in Healthy Older Individuals. J Infect Dis 2015; 213:999-1007. [PMID: 26518043 DOI: 10.1093/infdis/jiv520] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 10/08/2015] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Despite the relevance of monocytes as promoters of the inflammatory response, whether human immunodeficiency virus (HIV) infection induces premature age-related changes to the phenotype and function of monocytes or whether these alterations are different and/or specifically driven by HIV remains to be mechanistically determined. METHODS We assayed the activation phenotype and the responsiveness in vitro to Toll-like receptor (TLR) agonists in classical, intermediate, and nonclassical subsets of monocytes by assessing intracellular interleukin 1α (IL-1α), IL-1β, interleukin 6 (IL-6), interleukin 8, tumor necrosis factor α, and interleukin 10 (IL-10) production in 20 HIV-infected patients receiving combination antiretroviral therapy (cART) and 2 groups of uninfected controls (20 age-matched young individuals and 20 older individuals aged >65 years). RESULTS HIV-infected patients showed a more activated phenotype of monocytes than older controls. Regarding functionality, under unstimulated conditions HIV-infected patients showed a higher percentage of classical monocytes producing IL-6 and IL-10 than control subjects. The percentage of cells with production of multiple cytokines (polyfunctionality), including IL-10, in response to TLR agonists was greater among HIV-infected patients than among control subjects. CONCLUSIONS Inflammatory alterations associated with monocytes during HIV infection are different from those in aging individuals. This monocyte dysfunction, mainly characterized by high levels of IL-6- and IL-10-producing monocytes, may have clinical implications in HIV-infected patients that are different from those in aging individuals.
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Affiliation(s)
- R S De Pablo-Bernal
- Laboratory of Immunovirology, Clinical Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville
| | | | - M Genebat
- Laboratory of Immunovirology, Clinical Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville
| | | | - M Rafii-El-Idrissi Benhnia
- Laboratory of Immunovirology, Clinical Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville Department of Medical Biochemistry and Molecular Biology and Immunology, Medical School, University of Seville
| | - M A Muñoz-Fernández
- Laboratory of Molecular Immunobiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine, Madrid, Spain
| | - Y M Pacheco
- Laboratory of Immunovirology, Clinical Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville
| | | | - M Leal
- Laboratory of Immunovirology, Clinical Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville
| | - E Ruiz-Mateos
- Laboratory of Immunovirology, Clinical Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville
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