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Assessment of Age-Related Decline of Immunological Function and Possible Methods for Immunological Restoration in Elderly. HANDBOOK OF IMMUNOSENESCENCE 2019. [PMCID: PMC7121363 DOI: 10.1007/978-3-319-99375-1_73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The immune system plays an important role in protection against infection and cancer, and in the maintenance of the internal environment of the body. However, such important immune functions are known to decline with age in many mammals, including humans. It is a matter of clinical importance that the incidence of various age-associated diseases such as infections, cancer, and vascular disorders increases with a decrease in immunological vigor. The extent of immunologic decline is variable and exhibits wide interindividual variations. Thus, it is important to assess the extent of immunologic decline in both patients suffering from various diseases and in healthy people in order to maintain healthy conditions. To this end, we have developed a scoring system that analyzes immune parameters according to a database of known age-associated immune changes obtained from a healthy population. Using this scoring system, we can combine several different immunological parameters and express the immune status of individuals as a simple numeral. Several methods of immunological restoration were introduced and the magnitude of restoration was evaluated by the quantitative assessment of immunological level.
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Abstract
Chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis are regarded as a diseases of accelerated lung ageing and show all of the hallmarks of ageing, including telomere shortening, cellular senescence, activation of PI3 kinase-mTOR signaling, impaired autophagy, mitochondrial dysfunction, stem cell exhaustion, epigenetic changes, abnormal microRNA profiles, immunosenescence and a low grade chronic inflammation due to senescence-associated secretory phenotype (SASP). Many of these ageing mechanisms are driven by exogenous and endogenous oxidative stress. There is also a reduction in anti-ageing molecules, such as sirtuins and Klotho, which further accelerate the ageing process. Understanding these molecular mechanisms has identified several novel therapeutic targets and several drugs and dietary interventions are now in development to treat chronic lung disease.
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Affiliation(s)
- Peter J Barnes
- Airway Disease Section, National Heart and Lung Institute, Imperial College, London, UK.
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Bufan B. Application of prophylactic vaccines in the elderly. ARHIV ZA FARMACIJU 2019. [DOI: 10.5937/arhfarm1906469b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Social environment improves immune function and redox state in several organs from prematurely aging female mice and increases their lifespan. Biogerontology 2018; 20:49-69. [DOI: 10.1007/s10522-018-9774-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/19/2018] [Indexed: 12/13/2022]
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Thuraisingam T, Mirmirani P. Erosive Pustular Dermatosis: A Manifestation of Immunosenescence A Report of 8 Cases. Skin Appendage Disord 2018; 4:180-186. [PMID: 30197899 DOI: 10.1159/000484488] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 10/20/2017] [Indexed: 11/19/2022] Open
Abstract
Erosive pustular dermatosis (EPD) is a rare condition of the scalp and legs that is marked by crusted erosions or superficial ulcerations that may result in scarring alopecia and chronic wounds. The condition predominantly affects elderly female as compared to male patients. Its pathogenesis remains poorly understood. The majority of the cases in the literature are from the United Kingdom and continental Europe. In this series, we present 8 North American patients with EPD of the scalp, one of whom also had involvement of the legs and another with the involvement of the face. All our patients were advanced in age and had a predisposition to chronic actinic damage, which are common characteristics of EPD previously reported in the literature. We hypothesize that immunosenescence leads to an aberrant immune response to wound healing and, along with other factors such as a loss of the normal epidermal barrier, ultraviolet damage, and hormonal factors, may contribute to the development of this condition.
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Affiliation(s)
| | - Paradi Mirmirani
- The Permanente Medical Group, Vallejo, CA.,Case Western Reserve University, Cleveland, OH.,University of California, San Francisco, CA, USA
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Bartlett DB, Willis LH, Slentz CA, Hoselton A, Kelly L, Huebner JL, Kraus VB, Moss J, Muehlbauer MJ, Spielmann G, Kraus WE, Lord JM, Huffman KM. Ten weeks of high-intensity interval walk training is associated with reduced disease activity and improved innate immune function in older adults with rheumatoid arthritis: a pilot study. Arthritis Res Ther 2018; 20:127. [PMID: 29898765 PMCID: PMC6001166 DOI: 10.1186/s13075-018-1624-x] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 05/14/2018] [Indexed: 12/15/2022] Open
Abstract
Background Rheumatoid arthritis (RA) is a chronic inflammatory disease in which adults have significant joint issues leading to poor health. Poor health is compounded by many factors, including exercise avoidance and increased risk of opportunistic infection. Exercise training can improve the health of patients with RA and potentially improve immune function; however, information on the effects of high-intensity interval training (HIIT) in RA is limited. We sought to determine whether 10 weeks of a walking-based HIIT program would be associated with health improvements as measured by disease activity and aerobic fitness. Further, we assessed whether HIIT was associated with improved immune function, specifically antimicrobial/bacterial functions of neutrophils and monocytes. Methods Twelve physically inactive adults aged 64 ± 7 years with either seropositive or radiographically proven (bone erosions) RA completed 10 weeks of high-intensity interval walking. Training consisted of 3 × 30-minute sessions/week of ten ≥ 60-second intervals of high intensity (80–90% VO2reserve) separated by similar bouts of lower-intensity intervals (50–60% VO2reserve). Pre- and postintervention assessments included aerobic and physical function; disease activity as measured by Disease Activity score in 28 joints (DAS28), self-perceived health, C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR); plasma interleukin (IL)-1β, IL-6, chemokine (C-X-C motif) ligand (CXCL)-8, IL-10, and tumor necrosis factor (TNF)-α concentrations; and neutrophil and monocyte phenotypes and functions. Results Despite minimal body composition change, cardiorespiratory fitness increased by 9% (change in both relative and absolute aerobic capacity; p < 0.001), and resting blood pressure and heart rate were both reduced (both p < 0.05). Postintervention disease activity was reduced by 38% (DAS28; p = 0.001) with significant reductions in ESR and swollen joints as well as improved self-perceived health. Neutrophil migration toward CXCL-8 (p = 0.003), phagocytosis of Escherichia coli (p = 0.03), and ROS production (p < 0.001) all increased following training. The frequency of cluster of differentiation 14-positive (CD14+)/CD16+ monocytes was reduced (p = 0.002), with both nonclassical (CD14dim/CD16bright) and intermediate (CD14bright/CD16positive) monocytes being reduced (both p < 0.05). Following training, the cell surface expression of intermediate monocyte Toll-like receptor 2 (TLR2), TLR4, and HLA-DR was reduced (all p < 0.05), and monocyte phagocytosis of E. coli increased (p = 0.02). No changes were observed for inflammatory markers IL-1β, IL-6, CXCL-8, IL-10, CRP, or TNF-α. Conclusions We report for the first time, to our knowledge, that a high-intensity interval walking protocol in older adults with stable RA is associated with reduced disease activity, improved cardiovascular fitness, and improved innate immune functions, indicative of reduced infection risk and inflammatory potential. Importantly, the exercise program was well tolerated by these patients. Trial registration ClinicalTrials.gov, NCT02528344. Registered on 19 August 2015.
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Affiliation(s)
- David B Bartlett
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA. .,Division of Medical Oncology, Duke University School of Medicine, Durham, NC, 27701, USA. .,MRC-ARUK Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
| | - Leslie H Willis
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | - Cris A Slentz
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | - Andrew Hoselton
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | - Leslie Kelly
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | - Janet L Huebner
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | - Virginia B Kraus
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | - Jennifer Moss
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | - Michael J Muehlbauer
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | | | - William E Kraus
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | - Janet M Lord
- MRC-ARUK Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,NIHR Birmingham Biomedical Research Centre in Inflammation, University Hospital Birmingham, Birmingham, UK
| | - Kim M Huffman
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
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57
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Campbell JP, Turner JE. Debunking the Myth of Exercise-Induced Immune Suppression: Redefining the Impact of Exercise on Immunological Health Across the Lifespan. Front Immunol 2018; 9:648. [PMID: 29713319 PMCID: PMC5911985 DOI: 10.3389/fimmu.2018.00648] [Citation(s) in RCA: 350] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 03/15/2018] [Indexed: 12/17/2022] Open
Abstract
Epidemiological evidence indicates that regular physical activity and/or frequent structured exercise reduces the incidence of many chronic diseases in older age, including communicable diseases such as viral and bacterial infections, as well as non-communicable diseases such as cancer and chronic inflammatory disorders. Despite the apparent health benefits achieved by leading an active lifestyle, which imply that regular physical activity and frequent exercise enhance immune competency and regulation, the effect of a single bout of exercise on immune function remains a controversial topic. Indeed, to this day, it is perceived by many that a vigorous bout of exercise can temporarily suppress immune function. In the first part of this review, we deconstruct the key pillars which lay the foundation to this theory-referred to as the "open window" hypothesis-and highlight that: (i) limited reliable evidence exists to support the claim that vigorous exercise heightens risk of opportunistic infections; (ii) purported changes to mucosal immunity, namely salivary IgA levels, after exercise do not signpost a period of immune suppression; and (iii) the dramatic reductions to lymphocyte numbers and function 1-2 h after exercise reflects a transient and time-dependent redistribution of immune cells to peripheral tissues, resulting in a heightened state of immune surveillance and immune regulation, as opposed to immune suppression. In the second part of this review, we provide evidence that frequent exercise enhances-rather than suppresses-immune competency, and highlight key findings from human vaccination studies which show heightened responses to bacterial and viral antigens following bouts of exercise. Finally, in the third part of this review, we highlight that regular physical activity and frequent exercise might limit or delay aging of the immune system, providing further evidence that exercise is beneficial for immunological health. In summary, the over-arching aim of this review is to rebalance opinion over the perceived relationships between exercise and immune function. We emphasize that it is a misconception to label any form of acute exercise as immunosuppressive, and, instead, exercise most likely improves immune competency across the lifespan.
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Affiliation(s)
- John P Campbell
- Department for Health, University of Bath, Bath, United Kingdom
| | - James E Turner
- Department for Health, University of Bath, Bath, United Kingdom
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58
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Nikolich-Žugich J. The twilight of immunity: emerging concepts in aging of the immune system. Nat Immunol 2017; 19:10-19. [PMID: 29242543 DOI: 10.1038/s41590-017-0006-x] [Citation(s) in RCA: 608] [Impact Index Per Article: 86.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 10/26/2017] [Indexed: 02/06/2023]
Abstract
Immunosenescence is a series of age-related changes that affect the immune system and, with time, lead to increased vulnerability to infectious diseases. This Review addresses recent developments in the understanding of age-related changes that affect key components of immunity, including the effect of aging on cells of the (mostly adaptive) immune system, on soluble molecules that guide the maintenance and function of the immune system and on lymphoid organs that coordinate both the maintenance of lymphocytes and the initiation of immune responses. I further address the effect of the metagenome and exposome as key modifiers of immune-system aging and discuss a conceptual framework in which age-related changes in immunity might also affect the basic rules by which the immune system operates.
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Affiliation(s)
- Janko Nikolich-Žugich
- Department of Immunobiology and the Arizona Center on Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA.
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59
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Does Regular Exercise Counter T Cell Immunosenescence Reducing the Risk of Developing Cancer and Promoting Successful Treatment of Malignancies? OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:4234765. [PMID: 28751932 PMCID: PMC5511671 DOI: 10.1155/2017/4234765] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 05/11/2017] [Accepted: 06/01/2017] [Indexed: 12/15/2022]
Abstract
Moderate intensity aerobic exercise training or regular physical activity is beneficial for immune function. For example, some evidence shows that individuals with an active lifestyle exhibit stronger immune responses to vaccination compared to those who are inactive. Encouragingly, poor vaccine responses, which are characteristic of an ageing immune system, can be improved by single or repeated bouts of exercise. In addition, exercise-induced lymphocytosis, and the subsequent lymphocytopenia, is thought to facilitate immune surveillance, whereby lymphocytes search tissues for antigens derived from viruses, bacteria, or malignant transformation. Aerobic exercise training is anti-inflammatory and is linked to lower morbidity and mortality from diseases with infectious, immunological, and inflammatory aetiologies, including cancer. These observations have led to the view that aerobic exercise training might counter the age-associated decline in immune function, referred to as immunosenescence. This article summarises the aspects of immune function that are sensitive to exercise-induced change, highlighting the observations which have stimulated the idea that aerobic exercise training could prevent, limit, or delay immunosenescence, perhaps even restoring aged immune profiles. These potential exercise-induced anti-immunosenescence effects might contribute to the mechanisms by which active lifestyles reduce the risk of developing cancer and perhaps benefit patients undergoing cancer therapy.
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60
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Wilson D, Jackson T, Sapey E, Lord JM. Frailty and sarcopenia: The potential role of an aged immune system. Ageing Res Rev 2017; 36:1-10. [PMID: 28223244 DOI: 10.1016/j.arr.2017.01.006] [Citation(s) in RCA: 327] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 01/26/2017] [Accepted: 01/31/2017] [Indexed: 12/19/2022]
Abstract
Frailty is a common negative consequence of ageing. Sarcopenia, the syndrome of loss of muscle mass, quality and strength, is more common in older adults and has been considered a precursor syndrome or the physical manifestation of frailty. The pathophysiology of both syndromes is incompletely described with multiple causes, inter-relationships and complex pathways proposed. Age-associated changes to the immune system (both immunesenescence, the decline in immune function with ageing, and inflammageing, a state of chronic inflammation) have been suggested as contributors to sarcopenia and frailty but a direct causative role remains to be established. Frailty, sarcopenia and immunesenescence are commonly described in older adults but are not ubiquitous to ageing. There is evidence that all three conditions are reversible and all three appear to share common inflammatory drivers. It is unclear whether frailty, sarcopenia and immunesenescence are separate entities that co-occur due to coincidental or potentially confounding factors, or whether they are more intimately linked by the same underlying cellular mechanisms. This review explores these possibilities focusing on innate immunity, and in particular associations with neutrophil dysfunction, inflammation and known mechanisms described to date. Furthermore, we consider whether the age-related decline in immune cell function (such as neutrophil migration), increased inflammation and the dysregulation of the phosphoinositide 3-kinase (PI3K)-Akt pathway in neutrophils could contribute pathogenically to sarcopenia and frailty.
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61
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The Effect of Bifidobacterium animalis ssp. lactis HN019 on Cellular Immune Function in Healthy Elderly Subjects: Systematic Review and Meta-Analysis. Nutrients 2017; 9:nu9030191. [PMID: 28245559 PMCID: PMC5372854 DOI: 10.3390/nu9030191] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 02/08/2017] [Accepted: 02/20/2017] [Indexed: 12/14/2022] Open
Abstract
Elderly people have increased susceptibility to infections and cancer that are associated with decline in cellular immune function. The objective of this work was to determine the efficacy of Bifidobacterium (B.) animalis ssp. lactis HN019 (HN019) supplementation on cellular immune activity in healthy elderly subjects. We conducted a systematic review of Medline and Embase for controlled trials that reported polymorphonuclear (PMN) cell phagocytic capacity or natural killer (NK) cell tumoricidal activity following B. lactis HN019 consumption in the elderly. A random effects meta-analysis was performed with standardized mean difference (SMD) and 95% confidence interval between probiotic and control groups for each outcome. A total of four clinical trials were included in this analysis. B. lactis HN019 supplementation was highly efficacious in increasing PMN phagocytic capacity with an SMD of 0.74 (95% confidence interval: 0.38 to 1.11, p < 0.001) and moderately efficacious in increasing NK cell tumoricidal activity with an SMD of 0.43 (95% confidence interval: 0.08 to 0.78, p = 0.02). The main limitations of this research were the small number of included studies, short-term follow-up, and assessment of a single probiotic strain. In conclusion, daily consumption of B. lactis HN019 enhances NK cell and PMN function in healthy elderly adults.
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62
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Vallet-Regí M, Manzano M, Rodriguez-Mañas L, Checa López M, Aapro M, Balducci L. Management of Cancer in the Older Age Person: An Approach to Complex Medical Decisions. Oncologist 2017; 22:335-342. [PMID: 28220025 DOI: 10.1634/theoncologist.2016-0276] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 11/12/2016] [Indexed: 01/21/2023] Open
Abstract
The management of cancer in older aged people is becoming a common problem due to the aging of the population. There are many variables determining the complex situation that are interconnected. Some of them can be assessed, such as risk of mortality and risk of treatment complications, but many others are still unknown, such as the course of disease, the host-related factors that influence cancer aggressiveness, and the phenotype heralding risk of permanent treatment-related damage.This article presents a dynamic and personalized approach to older people with cancer based on our experience on aging, cancer, and their biological interactions. Also, novel treatments and management approaches to older individuals, based on their functional age and their social and emotional needs, are thoughtfully explored here. The Oncologist 2017;22:335-342 IMPLICATIONS FOR PRACTICE: The goal of this article is to suggest a practical approach to complexity, a clinical situation becoming increasingly common with the aging of the population. Beginning with the analysis of two clinical cases, the authors offer an algorithm for approaching cancer in the older person that involves the assessment of life expectancy without cancer, the risk that cancer might compromise a patient's survival, function, or quality of life, and the potential benefits and risks of the treatments based on a clinical evaluation. The authors then review possible laboratory assessment of functional age and the importance of rapid-learning databases in the study of cancer and age.
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Affiliation(s)
- María Vallet-Regí
- Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital, 12 de Octubre i+12, Madrid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Miguel Manzano
- Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital, 12 de Octubre i+12, Madrid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | | | - Marta Checa López
- Fundación para la Investigación Biomédica, Hospital Universitario de Getafe, Madrid, Spain
| | - Matti Aapro
- Breast Center, IMO Clinique de Genolier, Genolier, Switzerland
| | - Lodovico Balducci
- University of South Florida, College of Medicine, H. Lee Moffitt Cancer Center & Research Institute, Senior Adult Oncology Program, Tampa, Florida, USA
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63
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Akbar AN. The convergence of senescence and nutrient sensing during lymphocyte ageing. Clin Exp Immunol 2016; 187:4-5. [PMID: 27690328 PMCID: PMC5167018 DOI: 10.1111/cei.12876] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2016] [Indexed: 02/03/2023] Open
Abstract
Immunosurveillance requires the migration of lymphocytes and their activation to induce proliferation and effector function. Effective immunity requires an optimal supply of nutrients to lymphocytes. Cells contain nutrient sensing apparatus such as adenosine 5′‐monophosphate‐activated protein kinase (AMPK) that surveys intracellular ATP levels. Immunity declines during ageing and one possibility is that the energy balance may be altered in old lymphocytes. This paper summarizes recent data identifying a convergence of senescence and nutrient signalling pathways in lymphocytes that inhibit both T cell and natural killer (NK) cell function during ageing. Significantly, these pathways can be inhibited to enhance the activity of these cells.
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Affiliation(s)
- A N Akbar
- Division of Infection and Immunity, University College London, London, UK
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64
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Masters AR, Haynes L, Su DM, Palmer DB. Immune senescence: significance of the stromal microenvironment. Clin Exp Immunol 2016; 187:6-15. [PMID: 27529161 DOI: 10.1111/cei.12851] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2016] [Indexed: 12/12/2022] Open
Abstract
The immune system undergoes age-associated changes known as immunosenescence, resulting in increased susceptibility to infections, cancers and autoimmunity in the aged. The basis of our understanding of immunosenescence has been derived primarily from studies examining intrinsic defects within many of the cells of the immune system. While these studies have provided insight into the mechanisms of immunosenescence, a picture is now emerging that the stromal microenvironment within lymphoid organs also contributes significantly to the age-associated decline of immune function. These extrinsic defects appear to impact the functional activity of immune cells and may offer a potential target to recover immune activity. Indeed, rejuvenation studies which have targeted the stromal niche have restored immune function in aged successfully, highlighting the impact of the microenvironment towards the aetiology of immunosenescence.
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Affiliation(s)
- A R Masters
- UConn Center on Aging, University of Connecticut School of Medicine, Farmington, CT, USA.,Department of Immunology, University of Connecticut School of Medicine, Farmington, CT, USA
| | - L Haynes
- UConn Center on Aging, University of Connecticut School of Medicine, Farmington, CT, USA.,Department of Immunology, University of Connecticut School of Medicine, Farmington, CT, USA
| | - D-M Su
- Department of Molecular Biology and Immunology, University of North Texas Health Science Center at Fort Worth, Fort Worth, TX, USA
| | - D B Palmer
- Department of Comparative Biomedical Sciences, Royal Veterinary College, University of London, UK
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65
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Sauce D, Dong Y, Campillo-Gimenez L, Casulli S, Bayard C, Autran B, Boddaert J, Appay V, Elbim C. Reduced Oxidative Burst by Primed Neutrophils in the Elderly Individuals Is Associated With Increased Levels of the CD16bright/CD62LdimImmunosuppressive Subset. J Gerontol A Biol Sci Med Sci 2016; 72:163-172. [DOI: 10.1093/gerona/glw062] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 03/16/2016] [Indexed: 12/28/2022] Open
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