1
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Poon IKH, Ravichandran KS. Targeting Efferocytosis in Inflammaging. Annu Rev Pharmacol Toxicol 2024; 64:339-357. [PMID: 37585658 DOI: 10.1146/annurev-pharmtox-032723-110507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Rapid removal of apoptotic cells by phagocytes, a process known as efferocytosis, is key for the maintenance of tissue homeostasis, the resolution of inflammation, and tissue repair. However, impaired efferocytosis can result in the accumulation of apoptotic cells, subsequently triggering sterile inflammation through the release of endogenous factors such as DNA and nuclear proteins from membrane permeabilized dying cells. Here, we review the molecular basis of the three key phases of efferocytosis, that is, the detection, uptake, and degradation of apoptotic materials by phagocytes. We also discuss how defects in efferocytosis due to the alteration of phagocytes and dying cells can contribute to the low-grade chronic inflammation that occurs during aging, described as inflammaging. Lastly, we explore opportunities in targeting and harnessing the efferocytic machinery to limit aging-associated inflammatory diseases.
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Affiliation(s)
- Ivan K H Poon
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, and Research Centre for Extracellular Vesicles, La Trobe University, Melbourne, Victoria, Australia;
| | - Kodi S Ravichandran
- Division of Immunobiology, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA;
- VIB Center for Inflammation Research, and Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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2
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Huangfu N, Ma H, Tian M, Zhang J, Wang Y, Li Z, Chen X, Cui H. DHX9 Strengthens Atherosclerosis Progression By Promoting Inflammation in Macrophages. Inflammation 2023; 46:1725-1738. [PMID: 37326773 PMCID: PMC10567826 DOI: 10.1007/s10753-023-01836-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/26/2023] [Accepted: 05/11/2023] [Indexed: 06/17/2023]
Abstract
Atherosclerosis (AS) is the main cause of cerebrovascular diseases, and macrophages play important roles in atherosclerosis. DExH-Box helicase 9 (DHX9), as a member of DExD/H-box RNA helicase superfamily II, is identified as an autoantigen in the sera of systemic lupus erythematosus patients to trigger inflammation. The aim of this study was to investigate whether DHX9 is involved in AS development, especially in macrophages-mediated-inflammatory responses. We find that DHX9 expression is significantly increased in oxLDL or interferon-γ-treated macrophages and peripheral blood mononuclear cells (PBMCs) from patients with coronary artery disease (CAD). Knockdown of DHX9 inhibits lipid uptake and pro-inflammatory factors expression in macrophages, and ameliorates TNF-α-mediated monocyte adhesion capacity. Furthermore, we find that oxLDL stimulation promotes DHX9 interaction with p65 in macrophages, and further enhances the transcriptional activity of DHX9-p65-RNA Polymerase II complex to produce inflammatory factors. Moreover, using ApoE -/- mice fed with western diet to establish AS model, we find that knockdown of DHX9 mediated by adeno-associated virus-Sh-DHX9 through tail vein injection evidently alleviates AS progression in vivo. Finally, we also find that knockdown of DHX9 inhibits p65 activation, inflammatory factors expression, and the transcriptional activity of p65-RNA Polymerase II complex in PBMCs from patients with CAD. Overall, these results indicate that DHX9 promotes AS progression by enhancing inflammation in macrophages, and suggest DHX9 as a potential target for developing therapeutic drug.
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Affiliation(s)
- Ning Huangfu
- Department of Cardiology, Ningbo First Hospital, Ningbo, 315000, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, 315000, China
- Clinical Medicine Research Centre for Cardiovascular Disease of Ningbo, Ningbo, 315000, China
| | - Hongchuang Ma
- Department of Cardiology, Ningbo First Hospital, Ningbo, 315000, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, 315000, China
- Clinical Medicine Research Centre for Cardiovascular Disease of Ningbo, Ningbo, 315000, China
| | - Mengyun Tian
- School of Medicine, Ningbo University, Ningbo, 315000, China
| | - Jie Zhang
- Department of Cardiology, Ningbo First Hospital, Ningbo, 315000, China
- School of Medicine, Ningbo University, Ningbo, 315000, China
| | - Yong Wang
- Department of Cardiology, Ningbo First Hospital, Ningbo, 315000, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, 315000, China
- Clinical Medicine Research Centre for Cardiovascular Disease of Ningbo, Ningbo, 315000, China
| | - Zhenwei Li
- Department of Cardiology, Ningbo First Hospital, Ningbo, 315000, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, 315000, China
- Clinical Medicine Research Centre for Cardiovascular Disease of Ningbo, Ningbo, 315000, China
| | - Xiaomin Chen
- Department of Cardiology, Ningbo First Hospital, Ningbo, 315000, China.
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, 315000, China.
- Clinical Medicine Research Centre for Cardiovascular Disease of Ningbo, Ningbo, 315000, China.
| | - Hanbin Cui
- Department of Cardiology, Ningbo First Hospital, Ningbo, 315000, China.
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, 315000, China.
- Clinical Medicine Research Centre for Cardiovascular Disease of Ningbo, Ningbo, 315000, China.
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3
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Vallet H, Guidet B, Boumendil A, De Lange DW, Leaver S, Szczeklik W, Jung C, Sviri S, Beil M, Flaatten H. The impact of age-related syndromes on ICU process and outcomes in very old patients. Ann Intensive Care 2023; 13:68. [PMID: 37542186 PMCID: PMC10403479 DOI: 10.1186/s13613-023-01160-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/28/2023] [Indexed: 08/06/2023] Open
Abstract
In this narrative review, we describe the most important age-related "syndromes" found in the old ICU patients. The syndromes are frailty, comorbidity, cognitive decline, malnutrition, sarcopenia, loss of functional autonomy, immunosenescence and inflam-ageing. The underlying geriatric condition, together with the admission diagnosis and the acute severity contribute to the short-term, but also to the long-term prognosis. Besides mortality, functional status and quality of life are major outcome variables. The geriatric assessment is a key tool for long-term qualitative outcome, while immediate severity accounts for acute mortality. A poor functional baseline reduces the chances of a successful outcome following ICU. This review emphasises the importance of using a geriatric assessment and considering the older patient as a whole, rather than the acute illness in isolation, when making decisions regarding intensive care treatment.
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Affiliation(s)
- Hélène Vallet
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 1135, Centre d'immunologie et de Maladies Infectieuses (CIMI), Department of Geriatrics, Saint Antoine, Assistance Publique Hôpitaux de Paris (AP-HP), Sorbonne Université, F75012, Paris, France
| | - Bertrand Guidet
- Institut Pierre Louis d'Epidémiologie et de Santé Publique, Hôpital Saint-Antoine, service de réanimation, Sorbonne Université, INSERM, AP-HP, 75012, Paris, France.
| | - Ariane Boumendil
- service de réanimation, AP-HP, Hôpital Saint-Antoine, F75012, Paris, France
| | - Dylan W De Lange
- Department of Intensive Care Medicine, University Medical Center, University Utrecht, Utrecht, The Netherlands
| | - Susannah Leaver
- Department of Critical Care Medicine, St George's Hospital London, London, England
| | - Wojciech Szczeklik
- Intensive Care and Perioperative Medicine Division, Jagiellonian University Medical College, Kraków, Poland
| | - Christian Jung
- Division of Cardiology, Pulmonology and Vascular Medicine, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Sigal Sviri
- Department of Medical Intensive Care, Faculty of Medicine, Hebrew University and Hadassah University Medical Center, Jerusalem, Israel
| | - Michael Beil
- Department of Medical Intensive Care, Faculty of Medicine, Hebrew University and Hadassah University Medical Center, Jerusalem, Israel
| | - Hans Flaatten
- Department of Clinical Medicine, Department of Research and Developement, Haukeland University Hospital, University of Bergen, Bergen, Norway
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4
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Bruserud Ø, Mosevoll KA, Bruserud Ø, Reikvam H, Wendelbo Ø. The Regulation of Neutrophil Migration in Patients with Sepsis: The Complexity of the Molecular Mechanisms and Their Modulation in Sepsis and the Heterogeneity of Sepsis Patients. Cells 2023; 12:cells12071003. [PMID: 37048076 PMCID: PMC10093057 DOI: 10.3390/cells12071003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host response to infection. Common causes include gram-negative and gram-positive bacteria as well as fungi. Neutrophils are among the first cells to arrive at an infection site where they function as important effector cells of the innate immune system and as regulators of the host immune response. The regulation of neutrophil migration is therefore important both for the infection-directed host response and for the development of organ dysfunctions in sepsis. Downregulation of CXCR4/CXCL12 stimulates neutrophil migration from the bone marrow. This is followed by transmigration/extravasation across the endothelial cell barrier at the infection site; this process is directed by adhesion molecules and various chemotactic gradients created by chemotactic cytokines, lipid mediators, bacterial peptides, and peptides from damaged cells. These mechanisms of neutrophil migration are modulated by sepsis, leading to reduced neutrophil migration and even reversed migration that contributes to distant organ failure. The sepsis-induced modulation seems to differ between neutrophil subsets. Furthermore, sepsis patients should be regarded as heterogeneous because neutrophil migration will possibly be further modulated by the infecting microorganisms, antimicrobial treatment, patient age/frailty/sex, other diseases (e.g., hematological malignancies and stem cell transplantation), and the metabolic status. The present review describes molecular mechanisms involved in the regulation of neutrophil migration; how these mechanisms are altered during sepsis; and how bacteria/fungi, antimicrobial treatment, and aging/frailty/comorbidity influence the regulation of neutrophil migration.
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Affiliation(s)
- Øystein Bruserud
- Leukemia Research Group, Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
- Section for Hematology, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Correspondence:
| | - Knut Anders Mosevoll
- Section for Infectious Diseases, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Section for Infectious Diseases, Department of Clinical Research, University of Bergen, 5021 Bergen, Norway
| | - Øyvind Bruserud
- Department for Anesthesiology and Intensive Care, Haukeland University Hospital, 5021 Bergen, Norway
| | - Håkon Reikvam
- Leukemia Research Group, Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
- Section for Hematology, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway
| | - Øystein Wendelbo
- Section for Infectious Diseases, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Faculty of Health, VID Specialized University, Ulriksdal 10, 5009 Bergen, Norway
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5
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Inflammaging: Implications in Sarcopenia. Int J Mol Sci 2022; 23:ijms232315039. [PMID: 36499366 PMCID: PMC9740553 DOI: 10.3390/ijms232315039] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022] Open
Abstract
In a world in which life expectancy is increasing, understanding and promoting healthy aging becomes a contemporary demand. In the elderly, a sterile, chronic and low-grade systemic inflammation known as "inflammaging" is linked with many age-associated diseases. Considering sarcopenia as a loss of strength and mass of skeletal muscle related to aging, correlations between these two terms have been proposed. Better knowledge of the immune system players in skeletal muscle would help to elucidate their implications in sarcopenia. Characterizing the activators of damage sensors and the downstream effectors explains the inference with skeletal muscle performance. Sarcopenia has also been linked to chronic diseases such as diabetes, metabolic syndrome and obesity. Implications of inflammatory signals from these diseases negatively affect skeletal muscle. Autophagic mechanisms are closely related with the inflammasome, as autophagy eliminates stress signaling sent by damage organelles, but also acts with an immunomodulatory function affecting immune cells and cytokine release. The use of melatonin, an antioxidant, ROS scavenger and immune and autophagy modulator, or senotherapeutic compounds targeting senescent cells could represent strategies to counteract inflammation. This review aims to present the many factors regulating skeletal muscle inflammaging and their major implications in order to understand the molecular mechanisms involved in sarcopenia.
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6
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Van Avondt K, Strecker J, Tulotta C, Minnerup J, Schulz C, Soehnlein O. Neutrophils in aging and aging‐related pathologies. Immunol Rev 2022; 314:357-375. [PMID: 36315403 DOI: 10.1111/imr.13153] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Over the past millennia, life expectancy has drastically increased. While a mere 25 years during Bronze and Iron ages, life expectancy in many European countries and in Japan is currently above 80 years. Such an increase in life expectancy is a result of improved diet, life style, and medical care. Yet, increased life span and aging also represent the most important non-modifiable risk factors for several pathologies including cardiovascular disease, neurodegenerative diseases, and cancer. In recent years, neutrophils have been implicated in all of these pathologies. Hence, this review provides an overview of how aging impacts neutrophil production and function and conversely how neutrophils drive aging-associated pathologies. Finally, we provide a perspective on how processes of neutrophil-driven pathologies in the context of aging can be targeted therapeutically.
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Affiliation(s)
- Kristof Van Avondt
- Institute of Experimental Pathology (ExPat), Centre of Molecular Biology of Inflammation (ZMBE) University of Münster Münster Germany
| | - Jan‐Kolja Strecker
- Department of Neurology with Institute of Translational Neurology University Hospital Münster Münster Germany
| | - Claudia Tulotta
- Institute of Experimental Pathology (ExPat), Centre of Molecular Biology of Inflammation (ZMBE) University of Münster Münster Germany
| | - Jens Minnerup
- Department of Neurology with Institute of Translational Neurology University Hospital Münster Münster Germany
| | - Christian Schulz
- Department of Medicine I University Hospital, Ludwig Maximilian University Munich Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance Munich Germany
| | - Oliver Soehnlein
- Institute of Experimental Pathology (ExPat), Centre of Molecular Biology of Inflammation (ZMBE) University of Münster Münster Germany
- Department of Physiology and Pharmacology (FyFa) Karolinska Institute Stockholm Sweden
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7
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Calder PC, Ortega EF, Meydani SN, Adkins Y, Stephensen CB, Thompson B, Zwickey H. Nutrition, Immunosenescence, and Infectious Disease: An Overview of the Scientific Evidence on Micronutrients and on Modulation of the Gut Microbiota. Adv Nutr 2022; 13:S1-S26. [PMID: 36183242 PMCID: PMC9526826 DOI: 10.1093/advances/nmac052] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/30/2022] [Accepted: 05/06/2022] [Indexed: 01/28/2023] Open
Abstract
The immune system is key to host defense against pathogenic organisms. Aging is associated with changes in the immune system, with a decline in protective components (immunosenescence), increasing susceptibility to infectious disease, and a chronic elevation in low-grade inflammation (inflammaging), increasing the risk of multiple noncommunicable diseases. Nutrition is a determinant of immune cell function and of the gut microbiota. In turn, the gut microbiota shapes and controls the immune and inflammatory responses. Many older people show changes in the gut microbiota. Age-related changes in immune competence, low-grade inflammation, and gut dysbiosis may be interlinked and may relate, at least in part, to age-related changes in nutrition. A number of micronutrients (vitamins C, D, and E and zinc and selenium) play roles in supporting the function of many immune cell types. Some trials report that providing these micronutrients as individual supplements can reverse immune deficits in older people and/or in those with insufficient intakes. There is inconsistent evidence that this will reduce the risk or severity of infections including respiratory infections. Probiotic, prebiotic, or synbiotic strategies that modulate the gut microbiota, especially by promoting the colonization of lactobacilli and bifidobacteria, have been demonstrated to modulate some immune and inflammatory biomarkers in older people and, in some cases, to reduce the risk and severity of gastrointestinal and respiratory infections, although, again, the evidence is inconsistent. Further research with well-designed and well-powered trials in at-risk older populations is required to be more certain about the role of micronutrients and of strategies that modify the gut microbiota-host relationship in protecting against infection, especially respiratory infection.
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Affiliation(s)
- Philip C Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Edwin Frank Ortega
- Nutritional Immunology Laboratory, Jean Mayer–USDA Human Nutrition Research on Aging at Tufts University, Boston, MA, USA
| | - Simin N Meydani
- Nutritional Immunology Laboratory, Jean Mayer–USDA Human Nutrition Research on Aging at Tufts University, Boston, MA, USA
| | - Yuriko Adkins
- USDA Western Human Nutrition Research Center, Davis, CA, USA
- Nutrition Department, University of California, Davis, CA, USA
| | - Charles B Stephensen
- USDA Western Human Nutrition Research Center, Davis, CA, USA
- Nutrition Department, University of California, Davis, CA, USA
| | - Brice Thompson
- Department of Pharmaceutics, University of Washington, Seattle, WA, USA
| | - Heather Zwickey
- Helfgott Research Institute, National University of Natural Medicine, Portland, OR, USA
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8
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Torrance BL, Haynes L. Cellular senescence is a key mediator of lung aging and susceptibility to infection. Front Immunol 2022; 13:1006710. [PMID: 36119079 PMCID: PMC9473698 DOI: 10.3389/fimmu.2022.1006710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/16/2022] [Indexed: 12/05/2022] Open
Abstract
Aging results in systemic changes that leave older adults at much higher risk for adverse outcomes following respiratory infections. Much work has been done over the years to characterize and describe the varied changes that occur with aging from the molecular/cellular up to the organismal level. In recent years, the systemic accumulation of senescent cells has emerged as a key mediator of many age-related declines and diseases of aging. Many of these age-related changes can impair the normal function of the respiratory system and its capability to respond appropriately to potential pathogens that are encountered daily. In this review, we aim to establish the effects of cellular senescence on the disruption of normal lung function with aging and describe how these effects compound to leave an aged respiratory system at great risk when exposed to a pathogen. We will also discuss the role cellular senescence may play in the inability of most vaccines to confer protection against respiratory infections when administered to older adults. We posit that cellular senescence may be the point of convergence of many age-related immunological declines. Enhanced investigation into this area could provide much needed insight to understand the aging immune system and how to effectively ameliorate responses to pathogens that continue to disproportionately harm this vulnerable population.
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Govers C, Calder PC, Savelkoul HFJ, Albers R, van Neerven RJJ. Ingestion, Immunity, and Infection: Nutrition and Viral Respiratory Tract Infections. Front Immunol 2022; 13:841532. [PMID: 35296080 PMCID: PMC8918570 DOI: 10.3389/fimmu.2022.841532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/02/2022] [Indexed: 12/12/2022] Open
Abstract
Respiratory infections place a heavy burden on the health care system, particularly in the winter months. Individuals with a vulnerable immune system, such as very young children and the elderly, and those with an immune deficiency, are at increased risk of contracting a respiratory infection. Most respiratory infections are relatively mild and affect the upper respiratory tract only, but other infections can be more serious. These can lead to pneumonia and be life-threatening in vulnerable groups. Rather than focus entirely on treating the symptoms of infectious disease, optimizing immune responsiveness to the pathogens causing these infections may help steer towards a more favorable outcome. Nutrition may have a role in such prevention through different immune supporting mechanisms. Nutrition contributes to the normal functioning of the immune system, with various nutrients acting as energy sources and building blocks during the immune response. Many micronutrients (vitamins and minerals) act as regulators of molecular responses of immune cells to infection. It is well described that chronic undernutrition as well as specific micronutrient deficiencies impair many aspects of the immune response and make individuals more susceptible to infectious diseases, especially in the respiratory and gastrointestinal tracts. In addition, other dietary components such as proteins, pre-, pro- and synbiotics, and also animal- and plant-derived bioactive components can further support the immune system. Both the innate and adaptive defense systems contribute to active antiviral respiratory tract immunity. The initial response to viral airway infections is through recognition by the innate immune system of viral components leading to activation of adaptive immune cells in the form of cytotoxic T cells, the production of neutralizing antibodies and the induction of memory T and B cell responses. The aim of this review is to describe the effects of a range different dietary components on anti-infective innate as well as adaptive immune responses and to propose mechanisms by which they may interact with the immune system in the respiratory tract.
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Affiliation(s)
- Coen Govers
- Cell Biology and Immunology, Wageningen University and Research, Wageningen, Netherlands
| | - Philip C. Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- National Institute for Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton National Health Service (NHS) Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Huub F. J. Savelkoul
- Cell Biology and Immunology, Wageningen University and Research, Wageningen, Netherlands
| | | | - R. J. Joost van Neerven
- Cell Biology and Immunology, Wageningen University and Research, Wageningen, Netherlands
- Research & Development, FrieslandCampina, Amersfoort, Netherlands
- *Correspondence: R. J. Joost van Neerven,
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10
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Interconnections between Inflammageing and Immunosenescence during Ageing. Cells 2022; 11:cells11030359. [PMID: 35159168 PMCID: PMC8834134 DOI: 10.3390/cells11030359] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/13/2022] [Accepted: 01/15/2022] [Indexed: 02/04/2023] Open
Abstract
Acute inflammation is a physiological response to injury or infection, with a cascade of steps that ultimately lead to the recruitment of immune cells to clear invading pathogens and heal wounds. However, chronic inflammation arising from the continued presence of the initial trigger, or the dysfunction of signalling and/or effector pathways, is harmful to health. While successful ageing in older adults, including centenarians, is associated with low levels of inflammation, elevated inflammation increases the risk of poor health and death. Hence inflammation has been described as one of seven pillars of ageing. Age-associated sterile, chronic, and low-grade inflammation is commonly termed inflammageing-it is not simply a consequence of increasing chronological age, but is also a marker of biological ageing, multimorbidity, and mortality risk. While inflammageing was initially thought to be caused by "continuous antigenic load and stress", reports from the last two decades describe a much more complex phenomenon also involving cellular senescence and the ageing of the immune system. In this review, we explore some of the main sources and consequences of inflammageing in the context of immunosenescence and highlight potential interventions. In particular, we assess the contribution of cellular senescence to age-associated inflammation, identify patterns of pro- and anti-inflammatory markers characteristic of inflammageing, describe alterations in the ageing immune system that lead to elevated inflammation, and finally assess the ways that diet, exercise, and pharmacological interventions can reduce inflammageing and thus, improve later life health.
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11
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Kaddour H, Kopcho S, Lyu Y, Shouman N, Paromov V, Pratap S, Dash C, Kim EY, Martinson J, McKay H, Epeldegui M, Margolick JB, Stapleton JT, Okeoma CM. HIV-infection and cocaine use regulate semen extracellular vesicles proteome and miRNAome in a manner that mediates strategic monocyte haptotaxis governed by miR-128 network. Cell Mol Life Sci 2021; 79:5. [PMID: 34936021 PMCID: PMC9134786 DOI: 10.1007/s00018-021-04068-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/22/2021] [Accepted: 11/30/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Extracellular vesicles (EVs) are regulators of cell-cell interactions and mediators of horizontal transfer of bioactive molecules between cells. EV-mediated cell-cell interactions play roles in physiological and pathophysiological processes, which maybe modulated by exposure to pathogens and cocaine use. However, the effect of pathogens and cocaine use on EV composition and function are not fully understood. RESULTS Here, we used systems biology and multi-omics analysis to show that HIV infection (HIV +) and cocaine (COC) use (COC +) promote the release of semen-derived EVs (SEV) with dysregulated extracellular proteome (exProtein), miRNAome (exmiR), and exmiR networks. Integrating SEV proteome and miRNAome revealed a significant decrease in the enrichment of disease-associated, brain-enriched, and HIV-associated miR-128-3p (miR-128) in HIV + COC + SEV with a concomitant increase in miR-128 targets-PEAK1 and RND3/RhoE. Using two-dimensional-substrate single cell haptotaxis, we observed that in the presence of HIV + COC + SEV, contact guidance provided by the extracellular matrix (ECM, collagen type 1) network facilitated far-ranging haptotactic cues that guided monocytes over longer distances. Functionalizing SEV with a miR-128 mimic revealed that the strategic changes in monocyte haptotaxis are in large part the result of SEV-associated miR-128. CONCLUSIONS We propose that compositionally and functionally distinct HIV + COC + and HIV-COC- SEVs and their exmiR networks may provide cells relevant but divergent haptotactic guidance in the absence of chemotactic cues, under both physiological and pathophysiological conditions.
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Affiliation(s)
- Hussein Kaddour
- Department of Pharmacology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY, 11794-8651, USA
- Regeneron Pharmaceuticals, Inc., Tarrytown, NY, 10591, USA
| | - Steven Kopcho
- Department of Pharmacology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY, 11794-8651, USA
| | - Yuan Lyu
- Department of Pharmacology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY, 11794-8651, USA
| | - Nadia Shouman
- Department of Pharmacology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY, 11794-8651, USA
| | - Victor Paromov
- CRISALIS, School of Graduate Studies and Research, Proteomics Core, Meharry Medical College, Nashville, TN, 37208, USA
| | - Siddharth Pratap
- CRISALIS, School of Graduate Studies and Research, Bioinformatics Core, Meharry Medical College, Nashville, TN, 37208, USA
| | - Chandravanu Dash
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN, 37208, USA
| | - Eun-Young Kim
- Division of Infectious Diseases, Department of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Jeremy Martinson
- Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Heather McKay
- Department of Epidemiology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Marta Epeldegui
- Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, UCLA AIDS Institute and UCLA Jonsson Comprehensive Cancer Center, Los Angeles, USA
- David Geffen School of Medicine at UCLA, UCLA AIDS Institute, Los Angeles, USA
- UCLA Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at UCLA, Los Angeles, USA
| | - Joseph B Margolick
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21207, USA
| | - Jack T Stapleton
- Departments of Internal Medicine, Microbiology and Immunology, University of Iowa and Iowa City Veterans Administration Healthcare, Iowa City, IA, 52242-1081, USA
| | - Chioma M Okeoma
- Department of Pharmacology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY, 11794-8651, USA.
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12
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D’Souza SS, Zhang Y, Bailey JT, Fung ITH, Kuentzel ML, Chittur SV, Yang Q. Type I Interferon signaling controls the accumulation and transcriptomes of monocytes in the aged lung. Aging Cell 2021; 20:e13470. [PMID: 34547174 PMCID: PMC8520712 DOI: 10.1111/acel.13470] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/18/2021] [Accepted: 08/20/2021] [Indexed: 12/21/2022] Open
Abstract
Aging is paradoxically associated with a deteriorated immune defense (immunosenescence) and increased basal levels of tissue inflammation (inflammaging). The lung is particularly sensitive to the effects of aging. The immune cell mechanisms underlying physiological lung aging remain poorly understood. Here we reveal that aging leads to increased interferon signaling and elevated concentrations of chemokines in the lung, which is associated with infiltration of monocytes into the lung parenchyma. scRNA‐seq identified a novel Type‐1 interferon signaling dependent monocyte subset (MO‐ifn) that upregulated IFNAR1 expression and exhibited greater transcriptomal changes with aging than the other monocytes. Blockade of type‐1 interferon signaling by treatment with anti‐IFNAR1 neutralizing antibodies rapidly ablated MO‐ifn cells. Treatment with anti‐IFNAR1 antibodies also reduced airway chemokine concentrations and repressed the accumulation of the overall monocyte population in the parenchyma of the aged lung. Together, our work suggests that physiological aging is associated with increased basal level of airway monocyte infiltration and inflammation in part due to elevated type‐1 interferon signaling.
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Affiliation(s)
- Shanti S. D’Souza
- Department of Immunology and Microbial Disease Albany Medical College Albany NY USA
| | - Yuanyue Zhang
- Department of Immunology and Microbial Disease Albany Medical College Albany NY USA
| | - Jacob T. Bailey
- Department of Immunology and Microbial Disease Albany Medical College Albany NY USA
| | - Ivan T. H. Fung
- Department of Immunology and Microbial Disease Albany Medical College Albany NY USA
| | - Marcy L. Kuentzel
- Center for Functional Genomics University at Albany‐SUNY Rensselaer NY USA
| | - Sridar V. Chittur
- Center for Functional Genomics University at Albany‐SUNY Rensselaer NY USA
| | - Qi Yang
- Department of Immunology and Microbial Disease Albany Medical College Albany NY USA
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13
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Filippatos F, Tatsi EB, Michos A. Immune response to SARS-CoV-2 in children: A review of the current knowledge. Pediatr Investig 2021; 5:217-228. [PMID: 34540321 PMCID: PMC8441939 DOI: 10.1002/ped4.12283] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/13/2021] [Indexed: 12/14/2022] Open
Abstract
Host immune responses to severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), especially in children, are still under investigation. Children with coronavirus disease 2019 (COVID‐19) constitute a significant study group of immune responses as they rarely present with severe clinical manifestations, require hospitalization, or develop complications such as multisystem inflammatory syndrome in children (MIS‐C) associated with SARS‐CoV‐2 infection. The deciphering of children’s immune responses during COVID‐19 infection will provide information about the protective mechanisms, while new potential targets for future therapies are likely to be revealed. Despite the limited immunological studies in children with COVID‐19, this review compares data between adults and children in terms of innate and adaptive immunity to SARS‐CoV‐2, discusses the possible reasons why children are mostly asymptomatic, and highlights unanswered or unclear immunological issues. Current evidence suggests that the activity of innate immunity seems to be crucial to the early phases of SARS‐CoV‐2 infection and adaptive memory immunity is vital to prevent reinfection. Despite the limited immunological studies from children with COVID‐19, this review compares data between adults and children in terms of innate and adaptive immunity to SARS‐CoV‐2, discusses the possible reasons why children are mostly asymptomatic, and highlights unanswered or unclear immunological issues.
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Affiliation(s)
- Filippos Filippatos
- First Department of Pediatrics Infectious Diseases and Chemotherapy Research Laboratory Medical School National and Kapodistrian University of Athens "Aghia Sophia" Children's Hospital Athens Greece
| | - Elizabeth-Barbara Tatsi
- First Department of Pediatrics Infectious Diseases and Chemotherapy Research Laboratory Medical School National and Kapodistrian University of Athens "Aghia Sophia" Children's Hospital Athens Greece
| | - Athanasios Michos
- First Department of Pediatrics Infectious Diseases and Chemotherapy Research Laboratory Medical School National and Kapodistrian University of Athens "Aghia Sophia" Children's Hospital Athens Greece
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14
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Bhadricha H, Patel V, Singh AK, Savardekar L, Patil A, Surve S, Desai M. Increased frequency of Th17 cells and IL-17 levels are associated with low bone mineral density in postmenopausal women. Sci Rep 2021; 11:16155. [PMID: 34373550 PMCID: PMC8352954 DOI: 10.1038/s41598-021-95640-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/19/2021] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis is one of the chronic and often neglected bone diseases in aging postmenopausal women that affect the quality of life. Studies on ovariectomized mice models indicated the reciprocal role of Th17 cells and Treg cells in the aetiology of osteoporosis. While Th17 cells promote osteoclastogenesis, Treg cells exhibit anti-osteoclastogenic activity. This exploratory study aimed to determine the difference in the frequency of these T-cell subtypes in pre-and postmenopausal women and to examine their association with BMD. In our study, the frequency of Treg cells, analyzed by flow cytometry, did not differ between pre-and postmenopausal women. However, plasma levels of IL-10 along with IL-10+CD4+T cells were higher in post- compared to premenopausal women. The frequency of Th17 cells was higher in postmenopausal women irrespective of their BMD, however, only postmenopausal women with low BMD had elevated IL-17 levels and their T-scores were associated with Th17 frequency. Collectively, the results suggest that estrogen insufficiency in postmenopausal women may lead to increased Th17 cell frequency and elevated IL-17 levels which are associated with low BMD. This study highlights, Th17 cells and IL-17 as key players in the pathogenesis of osteoporosis and they can be the potential targets for immunotherapy in the treatment of osteoporosis.
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Affiliation(s)
- Hetal Bhadricha
- grid.416737.00000 0004 1766 871XMolecular Immunodiagnostics Division, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Vainav Patel
- grid.416737.00000 0004 1766 871XDepartment of Biochemistry and Virology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Amit Kumar Singh
- grid.416737.00000 0004 1766 871XDepartment of Biochemistry and Virology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Lalita Savardekar
- grid.416737.00000 0004 1766 871XDepartment of Clinical Research, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Anushree Patil
- grid.416737.00000 0004 1766 871XDepartment of Clinical Research, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Suchitra Surve
- grid.416737.00000 0004 1766 871XDepartment of Clinical Research, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Meena Desai
- grid.416737.00000 0004 1766 871XMolecular Immunodiagnostics Division, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
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15
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Rawat S, Vrati S, Banerjee A. Neutrophils at the crossroads of acute viral infections and severity. Mol Aspects Med 2021; 81:100996. [PMID: 34284874 PMCID: PMC8286244 DOI: 10.1016/j.mam.2021.100996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 12/22/2022]
Abstract
Neutrophils are versatile immune effector cells essential for mounting a first-line defense against invading pathogens. However, uncontrolled activation can lead to severe life-threatening complications. Neutrophils exist as a heterogeneous population, and their interaction with pathogens and other immune cells may shape the outcome of the host immune response. Diverse classes of viruses, including the recently identified novel SARS-CoV-2, have shown to alter the various aspects of neutrophil biology, offering possibilities for selective intervention. Here, we review heterogeneity within the neutrophil population, highlighting the functional consequences of circulating phenotypes and their critical involvement in exaggerating protective and pathological immune responses against the viruses. We discuss the recent findings of neutrophil extracellular traps (NETs) in COVID-19 pathology and cover other viruses, where neutrophil biology and NETs are crucial for developing disease severity. In the end, we have also pointed out the areas where neutrophil-mediated responses can be finely tuned to outline opportunities for therapeutic manipulation in controlling inflammation against viral infection.
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Affiliation(s)
- Surender Rawat
- Regional Centre for Biotechnology, Faridabad, Haryana, India
| | - Sudhanshu Vrati
- Regional Centre for Biotechnology, Faridabad, Haryana, India
| | - Arup Banerjee
- Regional Centre for Biotechnology, Faridabad, Haryana, India.
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16
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Nicastro E, Verdoni L, Bettini LR, Zuin G, Balduzzi A, Montini G, Biondi A, D'Antiga L. COVID-19 in Immunosuppressed Children. Front Pediatr 2021; 9:629240. [PMID: 33996683 PMCID: PMC8116542 DOI: 10.3389/fped.2021.629240] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/03/2021] [Indexed: 12/15/2022] Open
Abstract
Following the spread of the SARS-CoV-2 infection and coronavirus disease 2019 (COVID-19) to a global pandemic, concerns have arisen for the disease impact in at-risk populations, especially in immunocompromised hosts. On the other hand, clinical studies have clarified that the COVID-19 clinical burden is mostly due to over-inflammation and immune-mediated multiorgan injury. This has led to downsizing the role of immunosuppression as a determinant of outcome, and early reports confirm the hypothesis that patients undergoing immunosuppressive treatments do not have an increased risk of severe COVID-19 with respect to the general population. Intriguingly, SARS-CoV-2 natural reservoirs, such as bats and mice, have evolved mechanisms of tolerance involving selection of genes optimizing viral clearance through interferon type I and III responses and also dampening inflammasome response and cytokine expression. Children exhibit resistance to COVID-19 severe manifestations, and age-related features in innate and adaptive response possibly explaining this difference are discussed. A competent recognition by the innate immune system and controlled pro-inflammatory signaling seem to be the pillars of an effective response and the premise for pathogen clearance in SARS-CoV-2 infection. Immunosuppression-if not associated with other elements of fragility-do not represent per se an obstacle to this competent/tolerant phenotype in children. Several reports confirm that children receiving immunosuppressive medications have similar clinical involvement and outcomes as the pediatric general population, indicating that maintenance treatments should not be interrupted in suspect or confirmed SARS-CoV-2 infection.
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Affiliation(s)
- Emanuele Nicastro
- Pediatric Hepatology, Gastroenterology and Transplantation Unit, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Lucio Verdoni
- Pediatric Unit, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Laura Rachele Bettini
- MBBM Foundation, Pediatric Department, Hospital San Gerardo, University of Milano Bicocca, Monza, Italy
| | - Giovanna Zuin
- MBBM Foundation, Pediatric Department, Hospital San Gerardo, University of Milano Bicocca, Monza, Italy
| | - Adriana Balduzzi
- MBBM Foundation, Pediatric Department, Hospital San Gerardo, University of Milano Bicocca, Monza, Italy
| | - Giovanni Montini
- Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Ca' Granda, Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Andrea Biondi
- MBBM Foundation, Pediatric Department, Hospital San Gerardo, University of Milano Bicocca, Monza, Italy
| | - Lorenzo D'Antiga
- Pediatric Hepatology, Gastroenterology and Transplantation Unit, Hospital Papa Giovanni XXIII, Bergamo, Italy
- Pediatric Unit, Hospital Papa Giovanni XXIII, Bergamo, Italy
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17
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Castro-Herrera VM, Lown M, Fisk HL, Owen-Jones E, Lau M, Lowe R, Hood K, Gillespie D, Hobbs FDR, Little P, Butler CC, Miles EA, Calder PC. Relationships Between Age, Frailty, Length of Care Home Residence and Biomarkers of Immunity and Inflammation in Older Care Home Residents in the United Kingdom. FRONTIERS IN AGING 2021; 2:599084. [PMID: 35821989 PMCID: PMC9261419 DOI: 10.3389/fragi.2021.599084] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 02/03/2021] [Indexed: 01/16/2023]
Abstract
Aging is associated with changes to the immune system, collectively termed immunosenescence and inflammageing. However, the relationships among age, frailty, and immune parameters in older people resident in care homes are not well described. We assessed immune and inflammatory parameters in 184 United Kingdom care home residents aged over 65 years and how they relate to age, frailty index, and length of care home residence. Linear regression was used to identify the independent contribution of age, frailty, and length of care home residence to the various immune parameters as dependent variables. Participants had a mean age (±SD) of 85.3 ± 7.5 years, had been residing in the care home for a mean (±SD) of 1.9 ± 2.2 years at the time of study commencement, and 40.7% were severely frail. Length of care home residence and frailty index were correlated but age and frailty index and age and length of care home residence were not significantly correlated. All components of the full blood count, apart from total lymphocytes, were within the reference range; 31% of participants had blood lymphocyte numbers below the lower value of the reference range. Among the components of the full blood count, platelet numbers were positively associated with frailty index. Amongst plasma inflammatory markers, C-reactive protein (CRP), interleukin-1 receptor antagonist (IL-1ra), soluble E-selectin and interferon gamma-induced protein 10 (IP-10) were positively associated with frailty. Plasma soluble vascular cell adhesion molecule 1 (sVCAM-1), IP-10 and tumor necrosis factor receptor II (TNFRII) were positively associated with age. Plasma monocyte chemoattractant protein 1 was positively associated with length of care home residence. Frailty was an independent predictor of platelet numbers, plasma CRP, IL-1ra, IP-10, and sE-selectin. Age was an independent predictor of activated monocytes and plasma IP-10, TNFRII and sVCAM-1. Length of care home residence was an independent predictor of plasma MCP-1. This study concludes that there are independent links between increased frailty and inflammation and between increased age and inflammation amongst older people resident in care homes in the United Kingdom. Since, inflammation is known to contribute to morbidity and mortality in older people, the causes and consequences of inflammation in this population should be further explored.
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Affiliation(s)
- Vivian M. Castro-Herrera
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- *Correspondence: Vivian M. Castro-Herrera,
| | - Mark Lown
- School of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Helena L. Fisk
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Eleri Owen-Jones
- Centre for Trials Research, Cardiff University, Cardiff, United Kingdom
| | - Mandy Lau
- Centre for Trials Research, Cardiff University, Cardiff, United Kingdom
| | - Rachel Lowe
- Centre for Trials Research, Cardiff University, Cardiff, United Kingdom
| | - Kerenza Hood
- Centre for Trials Research, Cardiff University, Cardiff, United Kingdom
| | - David Gillespie
- Centre for Trials Research, Cardiff University, Cardiff, United Kingdom
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - F. D. Richard Hobbs
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Paul Little
- School of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Christopher C. Butler
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Elizabeth A. Miles
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Philip C. Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
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18
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Batista MA, Calvo-Fortes F, Silveira-Nunes G, Camatta GC, Speziali E, Turroni S, Teixeira-Carvalho A, Martins-Filho OA, Neretti N, Maioli TU, Santos RR, Brigidi P, Franceschi C, Faria AMC. Inflammaging in Endemic Areas for Infectious Diseases. Front Immunol 2020; 11:579972. [PMID: 33262758 PMCID: PMC7688519 DOI: 10.3389/fimmu.2020.579972] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/13/2020] [Indexed: 12/20/2022] Open
Abstract
Immunosenescence is marked by a systemic process named inflammaging along with a series of defects in the immunological activity that results in poor responses to infectious agents and to vaccination. Inflammaging, a state of low-grade chronic inflammation, usually leads to chronic inflammatory diseases and frailty in the elderly. However, some elderly escape from frailty and reach advanced age free of the consequences of inflammaging. This process has been called immunological remodeling, and it is the hallmark of healthy aging as described in the studies of centenarians in Italy. The biological markers of healthy aging are still a matter of debate, and the studies on the topic have focused on inflammatory versus remodeling processes and molecules. The sub-clinical inflammatory status associated with aging might be a deleterious event for populations living in countries where chronic infectious diseases are not prevalent. Nevertheless, in other parts of the world where they are, two possibilities may occur. Inflammatory responses may have a protective effect against these infectious agents. At the same time, the long-term consequences of protective immune responses during chronic infections may result in accelerated immunosenescence in these individuals. Therefore, the biological markers of healthy aging can vary according to environmental, cultural, and geographical settings that reflect worldwide, and in a non-biased, non-westernized perspective, the changes that we experience regarding our contacts with microorganisms and the outcomes of such contacts.
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Affiliation(s)
- Marina Andrade Batista
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fernanda Calvo-Fortes
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Gabriela Silveira-Nunes
- Departamento de Medicina, Universidade Federal de Juiz de Fora, Governador Valadares, Brazil
| | - Giovanna Caliman Camatta
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Elaine Speziali
- Instituto Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
| | - Silvia Turroni
- Unit of Microbial Ecology of Health, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | | | | | - Nicola Neretti
- Departament of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI, United States
| | - Tatiani Uceli Maioli
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rodrigo Ribeiro Santos
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Patrizia Brigidi
- Unit of Microbial Ecology of Health, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Claudio Franceschi
- Center for Biophysics, Bioinformatics, Biocomplexity, University of Bologna, Bologna, Italy.,Laboratory of Systems Biology of Healthy Aging, Department of Applied Mathematics, Lobachevsky University, Nizhny Novgorod, Russia
| | - Ana Maria Caetano Faria
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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19
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Fialkowski A, Gernez Y, Arya P, Weinacht KG, Kinane TB, Yonker LM. Insight into the pediatric and adult dichotomy of COVID-19: Age-related differences in the immune response to SARS-CoV-2 infection. Pediatr Pulmonol 2020; 55:2556-2564. [PMID: 32710693 DOI: 10.1002/ppul.24981] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/09/2020] [Accepted: 07/21/2020] [Indexed: 12/17/2022]
Abstract
The difference in morbidity and mortality between adult and pediatric coronavirus disease 2019 infections is dramatic. Understanding pediatric-specific acute and delayed immune responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is critical for the development of vaccination strategies, immune-targeted therapies, and treatment and prevention of multisystem inflammatory syndrome in children. The goal of this review is to highlight research developments in the understanding of the immune responses to SARS-CoV-2 infections, with a specific focus on age-related immune responses.
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Affiliation(s)
| | - Yael Gernez
- Department of Pediatric Allergy and Immunology, Stanford University, Stanford, California
| | - Puneeta Arya
- Harvard Medical School, Boston, Massachusetts.,Division of Cardiology, Massachusetts General Hospital for Children, Boston, Massachusetts
| | - Katja G Weinacht
- Department of Stem Cell Transplantation and Regenerative Medicine, Stanford University, Stanford, California
| | - T Bernard Kinane
- Harvard Medical School, Boston, Massachusetts.,Division of Pulmonary, Massachusetts General Hospital for Children, Boston, Massachusetts
| | - Lael M Yonker
- Harvard Medical School, Boston, Massachusetts.,Division of Pulmonary, Massachusetts General Hospital for Children, Boston, Massachusetts
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20
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Yesil Cinkir H, Elboga U. The effect of systemic inflammation indexes and 18FDG PET metabolic parameters on survival in advanced lung adenocarcinoma. TUMORI JOURNAL 2020; 106:312-318. [PMID: 32326835 DOI: 10.1177/0300891620915789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To determine the effect of systemic inflammation indexes and fluorine-18 fluorodeoxyglucose (18FDG) positron emission tomography (PET) metabolic parameters on survival in advanced lung adenocarcinoma. METHODS A total of 133 patients who underwent 18FDG PET for initial staging were investigated retrospectively. Baseline patient characteristics, routine blood test results, 18FDG PET metabolic parameters, and treatment history were examined. Overall survival (OS) was demonstrated by Kaplan-Meier analysis, and the curves were compared by the log-rank test. Systemic inflammation response index (SIRI) was defined as neutrophil x monocyte/lymphocyte count. RESULTS Lymphocyte/monocyte ratio (LMR) and SIRI were found to be significant for OS. The cutoff point was 2.25 for LMR. Median OS was 8 months for ⩽2.25 and 14 months for >2.25 (p = 0.005). For SIRI, the cutoff point was 2. SIRI ⩽2 was associated with a median OS of 16 months compared to 10 months for patients with SIRI >2 (p = 0.043). Maximum of standardized uptake value, total lesion glycolysis, and metabolic tumor volume were not found to be significant for OS (p = 0.225, p = 0.061, p = 0.355, respectively). No correlation was found between inflammatory indexes and PET metabolic parameters. CONCLUSION Age and LMR parameters were prognostic for survival in Cox regression analysis. There was no correlation between 18FDG PET parameters and inflammatory indexes.
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Affiliation(s)
- Havva Yesil Cinkir
- Department of Medical Oncology, Gaziantep University Faculty of Medicine, Gaziantep, Turkey
| | - Umut Elboga
- Department of Nuclear Medicine, Gaziantep University Faculty of Medicine, Gaziantep, Turkey
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21
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Bell OH, Copland DA, Ward A, Nicholson LB, Lange CAK, Chu CJ, Dick AD. Single Eye mRNA-Seq Reveals Normalisation of the Retinal Microglial Transcriptome Following Acute Inflammation. Front Immunol 2020; 10:3033. [PMID: 31993055 PMCID: PMC6964706 DOI: 10.3389/fimmu.2019.03033] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 12/10/2019] [Indexed: 01/07/2023] Open
Abstract
Background: Whether retinal microglia can maintain or restore immune homeostasis during and after inflammation is unclear. We performed single-eye mRNA-sequencing on microglia at different timepoints following a single inflammatory stimulus to characterise their transcriptome during and after resolution of endotoxin-induced uveitis (EIU). Experimental Approach: Cx3cr1 CreER :R26-tdTomato (C57BL/6) male heterozygotes were administered tamoxifen via different regimes at 4-5 weeks of age. Four weeks post-tamoxifen, mice were injected intravitreally with 10 ng lipopolysaccharide (endotoxin induced uveitis, EIU). Six-hundred retinal microglia were obtained by FACS from individual naïve retinas and at 4 h, 18 h, and 2 weeks following EIU induction. Samples were sequenced to a depth of up to 16.7 million reads using the SMART-Seq v4 Ultra Low Input RNA kit. The data was analysed using Partek software and Ingenuity Pathway Analysis. Genes were considered differentially-expressed (DEG) if the FDR step-up p-value was ≤0.05 and the fold-change was ≥±2. Results: Flow cytometric analysis indicates that the Cx3cr1 CreER :R26-tdTomato strain is both sensitive (>95% tagging) and specific (>95% specificity) for microglia when tamoxifen is administered topically to the eye for 3 days. During "early" activation, 613 DEGs were identified. In contrast, 537 DEGs were observed during peak cellular infiltrate and none at 2 weeks, compared to baseline controls (1,069 total unique DEGs). Key marker changes were validated by qPCR, flow cytometry, and fluorescence microscopy. C5AR1 was identified and validated as a robust marker of differentiating microglial subsets during an LPS response. Conclusion: Using EIU to provide a single defined inflammatory stimulus, mRNA-Seq identified acute transcriptional changes in retinal microglia which returned to their original transcriptome after 2 weeks. Yolk-sac derived microglia are capable of restoring their homeostatic state after acute inflammation.
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Affiliation(s)
- Oliver H Bell
- Academic Unit of Ophthalmology, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - David A Copland
- Academic Unit of Ophthalmology, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Amy Ward
- Academic Unit of Ophthalmology, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Lindsay B Nicholson
- Academic Unit of Ophthalmology, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Clemens A K Lange
- Eye Clinic, Medical Centre, University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Colin J Chu
- Academic Unit of Ophthalmology, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Andrew D Dick
- Academic Unit of Ophthalmology, Translational Health Sciences, University of Bristol, Bristol, United Kingdom.,Institute of Ophthalmology and the National Institute for Health Research Biomedical Research Centre, Moorfields Eye Hospital and University College London, London, United Kingdom
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22
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Portich JP, Faulhaber GAM. Leukemoid reaction: A 21st-century cohort study. Int J Lab Hematol 2019; 42:134-139. [PMID: 31765058 DOI: 10.1111/ijlh.13127] [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: 08/20/2019] [Revised: 10/13/2019] [Accepted: 11/04/2019] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Leukemoid reaction (leukocyte count >50 cells ×109 L) is a rare but extremely relevant finding. Since little has been published on this condition's clinical relevance and prognosis, we investigated leukemoid reaction in patients with a white blood cell count of >50 × 109 L, including etiology and outcomes. METHODS This retrospective cohort study included all patients at a Brazilian tertiary hospital between January 2016 and July 2018 > 18 years with a total leukocyte count >50 cells×109 L. Demographics, complete blood count, clinical features, and the exams used to diagnose and determine leukemoid reaction etiology were analyzed. A Kaplan-Meyer survival analysis was performed, and a binary logistic regression model identified variables associated with death. RESULTS Of the 267 cases with white blood cell count of >50 × 109 , 162/267 (60%) were secondary to hematopoietic neoplasm and 105/267 (40%) presenting as a true leukemoid reaction. The primary causes of the true leukemoid reaction cases were infection (59), nonhematopoietic neoplasm (17), or other causes (29). Patient deaths (66) differed significantly between groups (P < .001, log-rank [Mantel-Cox] Test). Lower hemoglobin, older age, and increased segmented neutrophil count were associated with increased risk of death. CONCLUSIONS This was a modern cohort analysis of leukemoid reactions, inclusive of all etiologies. The most common cause was infection, which involved several microorganisms. Paraneoplastic leukemoid reaction was also common. Both conditions have a poor prognosis with high mortality, being a major medical challenge.
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Affiliation(s)
- Júlia P Portich
- Internal Medicine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Gustavo A M Faulhaber
- Internal Medicine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Internal Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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23
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Crooke SN, Ovsyannikova IG, Poland GA, Kennedy RB. Immunosenescence: A systems-level overview of immune cell biology and strategies for improving vaccine responses. Exp Gerontol 2019; 124:110632. [PMID: 31201918 DOI: 10.1016/j.exger.2019.110632] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/30/2019] [Accepted: 06/06/2019] [Indexed: 02/07/2023]
Abstract
Immunosenescence contributes to a decreased capacity of the immune system to respond effectively to infections or vaccines in the elderly. The full extent of the biological changes that lead to immunosenescence are unknown, but numerous cell types involved in innate and adaptive immunity exhibit altered phenotypes and function as a result of aging. These manifestations of immunosenescence at the cellular level are mediated by dysregulation at the genetic level, and changes throughout the immune system are, in turn, propagated by numerous cellular interactions. Environmental factors, such as nutrition, also exert significant influence on the immune system during aging. While the mechanisms that govern the onset of immunosenescence are complex, systems biology approaches allow for the identification of individual contributions from each component within the system as a whole. Although there is still much to learn regarding immunosenescence, systems-level studies of vaccine responses have been highly informative and will guide the development of new vaccine candidates, novel adjuvant formulations, and immunotherapeutic drugs to improve vaccine responses among the aging population.
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Affiliation(s)
- Stephen N Crooke
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA.
| | | | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA.
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA.
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24
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Vallet H, Fali T, Sauce D. Le vieillissement du système immunitaire : du fondamental à la clinique. Rev Med Interne 2019; 40:105-111. [DOI: 10.1016/j.revmed.2018.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/26/2018] [Accepted: 07/03/2018] [Indexed: 01/08/2023]
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25
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Abstract
Aging is a key aspect of neoplasia at the level of cells, individuals and populations. Unrestrained expression and production of inflammatory mediators is a key feature of aging at the cellular and organism level. Inflammatory cells and mediators are a key component of the tumor microenvironment and drive tumor progression. Non-resolving smoldering inflammation increases the risk of cancer (the extrinsic pathway connecting inflammation and cancer). In the intrinsic pathway, genetic events that cause neoplasia (oncogenes and oncosupressor genes) orchestrate the construction of cancer-related inflammation. We argue that uncontrolled smoldering inflammation drives carcinogenesis in aging and acts as a common denominator linking aging and cancer.
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26
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He Z, Allers C, Sugimoto C, Ahmed N, Fujioka H, Kim WK, Didier ES, Kuroda MJ. Rapid Turnover and High Production Rate of Myeloid Cells in Adult Rhesus Macaques with Compensations during Aging. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2018; 200:4059-4067. [PMID: 29728510 PMCID: PMC6263173 DOI: 10.4049/jimmunol.1800207] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 04/10/2018] [Indexed: 01/13/2023]
Abstract
Neutrophils, basophils, and monocytes are continuously produced in bone marrow via myelopoiesis, circulate in blood, and are eventually removed from circulation to maintain homeostasis. To quantitate the kinetics of myeloid cell movement during homeostasis, we applied 5-bromo-2'-deoxyuridine pulse labeling in healthy rhesus macaques (Macaca mulatta) followed by hematology and flow cytometry analyses. Results were applied to a mathematical model, and the blood circulating half-life and daily production, respectively, of each cell type from macaques aged 5-10 y old were calculated for neutrophils (1.63 ± 0.16 d, 1.42 × 109 cells/l/d), basophils (1.78 ± 0.30 d, 5.89 × 106 cells/l/d), and CD14+CD16- classical monocytes (1.01 ± 0.15 d, 3.09 × 108 cells/l/d). Classical monocytes were released into the blood circulation as early as 1 d after dividing, whereas neutrophils remained in bone marrow 4-5 d before being released. Among granulocytes, neutrophils and basophils exhibited distinct kinetics in bone marrow maturation time and blood circulation. With increasing chronological age, there was a significant decrease in daily production of neutrophils and basophils, but the half-life of these granulocytes remained unchanged between 3 and 19 y of age. In contrast, daily production of classical monocytes remained stable through 19 y of age but exhibited a significant decline in half-life. These results demonstrated relatively short half-lives and continuous replenishment of neutrophils, basophils, and classical monocytes during homeostasis in adult rhesus macaques with compensations observed during increasing chronological age.
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Affiliation(s)
- Ziyuan He
- Division of Immunology, Tulane National Primate Research Center, Tulane University Health Science Center, Covington, LA 70433
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112
| | - Carolina Allers
- Division of Immunology, Tulane National Primate Research Center, Tulane University Health Science Center, Covington, LA 70433
| | - Chie Sugimoto
- Division of Immunology, Tulane National Primate Research Center, Tulane University Health Science Center, Covington, LA 70433
| | - Nursarat Ahmed
- Division of Immunology, Tulane National Primate Research Center, Tulane University Health Science Center, Covington, LA 70433
| | - Hideki Fujioka
- Center for Computational Science, Tulane University, New Orleans, LA 70118
| | - Woong-Ki Kim
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA 23507; and
| | - Elizabeth S Didier
- Division of Microbiology, Tulane National Primate Research Center, Tulane University Health Science Center, Covington, LA 70433
| | - Marcelo J Kuroda
- Division of Immunology, Tulane National Primate Research Center, Tulane University Health Science Center, Covington, LA 70433;
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112
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27
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Impact of stress on aged immune system compartments: Overview from fundamental to clinical data. Exp Gerontol 2018; 105:19-26. [DOI: 10.1016/j.exger.2018.02.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/03/2018] [Accepted: 02/05/2018] [Indexed: 12/12/2022]
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28
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Pan LL, Deng YY, Wang R, Wu C, Li J, Niu W, Yang Q, Bhatia M, Gudmundsson GH, Agerberth B, Diana J, Sun J. Lactose Induces Phenotypic and Functional Changes of Neutrophils and Macrophages to Alleviate Acute Pancreatitis in Mice. Front Immunol 2018; 9:751. [PMID: 29719535 PMCID: PMC5913286 DOI: 10.3389/fimmu.2018.00751] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 03/26/2018] [Indexed: 12/12/2022] Open
Abstract
Acute pancreatitis (AP) is one common clinical acute abdominal disease, for which specific pharmacological or nutritional therapies remain elusive. Lactose, a macronutrient and an inducer of host innate immune responses, possesses immune modulatory functions. The current study aimed to investigate potential modulatory effects of lactose and the interplay between the nutrient and pancreatic immunity during experimentally induced AP in mice. We found that either prophylactic or therapeutic treatment of lactose time-dependently reduced the severity of AP, as evidenced by reduced pancreatic edema, serum amylase levels, and pancreatic myeloperoxidase activities, as well as by histological examination of pancreatic damage. Overall, lactose promoted a regulatory cytokine milieu in the pancreas and reduced infiltration of inflammatory neutrophils and macrophages. On acinar cells, lactose was able to suppress caerulein-induced inflammatory signaling pathways and to suppress chemoattractant tumor necrosis factor (TNF)-α and monocyte chemotactic protein-1 production. Additionally, lactose acted on pancreas-infiltrated macrophages, increasing interleukin-10 and decreasing tumor necrosis factor alpha production. Notably, lactose treatment reversed AP-associated infiltration of activated neutrophils. Last, the effect of lactose on neutrophil infiltration was mimicked by a galectin-3 antagonist, suggesting a potential endogenous target of lactose. Together, the current study demonstrates an immune regulatory effect of lactose to alleviate AP and suggests its potential as a convenient, value-added therapeutic macronutrient to control AP, and lower the risk of its systemic complications.
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Affiliation(s)
- Li-Long Pan
- School of Medicine, Jiangnan University, Wuxi, China
| | - Yuan-Yuan Deng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Nutrition and Immunology Laboratory, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Ruxing Wang
- School of Medicine, Jiangnan University, Wuxi, China.,Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Chengfei Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Nutrition and Immunology Laboratory, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jiahong Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Nutrition and Immunology Laboratory, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Wenying Niu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Nutrition and Immunology Laboratory, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Qin Yang
- School of Medicine, Jiangnan University, Wuxi, China
| | - Madhav Bhatia
- Inflammation Research Group, Department of Pathology, University of Otago, Christchurch, New Zealand
| | | | - Birgitta Agerberth
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Julien Diana
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité 1151, Institute Necker-Enfants Malades (INEM), Centre National de la Recherche Scienctifique, Unité 8253, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Jia Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Nutrition and Immunology Laboratory, School of Food Science and Technology, Jiangnan University, Wuxi, China
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29
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Ebersole JL, Graves CL, Gonzalez OA, Dawson D, Morford LA, Huja PE, Hartsfield JK, Huja SS, Pandruvada S, Wallet SM. Aging, inflammation, immunity and periodontal disease. Periodontol 2000 2018; 72:54-75. [PMID: 27501491 DOI: 10.1111/prd.12135] [Citation(s) in RCA: 141] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2015] [Indexed: 12/29/2022]
Abstract
The increased prevalence and severity of periodontal disease have long been associated with aging, such that this oral condition affects the majority of the adult population over 50 years of age. Although the immune system is a critical component for maintaining health, aging can be characterized by quantitative and qualitative modifications of the immune system. This process, termed 'immunosenescence', is a progressive modification of the immune system that leads to greater susceptibility to infections, neoplasia and autoimmunity, presumably reflecting the prolonged antigenic stimulation and/or stress responses that occur across the lifespan. Interestingly, the global reduction in the host capability to respond effectively to these challenges is coupled with a progressive increase in the general proinflammatory status, termed 'inflammaging'. Consistent with the definition of immunosenescence, it has been suggested that the cumulative effect of prolonged exposure of the periodontium to microbial challenge is, at least in part, a contributor to the effects of aging on these tissues. Thus, it has also been hypothesized that alterations in the function of resident immune and nonimmune cells of the periodontium contribute to the expression of inflammaging in periodontal disease. Although the majority of aging research has focused on the adaptive immune response, it is becoming increasingly clear that the innate immune compartment is also highly affected by aging. Thus, the phenomenon of immunosenescence and inflammaging, expressed as age-associated changes within the periodontium, needs to be more fully understood in this era of precision and personalized medicine and dentistry.
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30
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Leukocyte Adhesion as an Indicator of Oxygenator Thrombosis During Extracorporeal Membrane Oxygenation Therapy? ASAIO J 2018; 64:24-30. [DOI: 10.1097/mat.0000000000000586] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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31
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Ortmann W, Kolaczkowska E. Age is the work of art? Impact of neutrophil and organism age on neutrophil extracellular trap formation. Cell Tissue Res 2017; 371:473-488. [PMID: 29250748 PMCID: PMC5820386 DOI: 10.1007/s00441-017-2751-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 11/21/2017] [Indexed: 12/15/2022]
Abstract
Neutrophil extracellular traps or NETs are released by highly activated neutrophils in response to infectious agents, sterile inflammation, autoimmune stimuli and cancer. In the cells, the nuclear envelop disintegrates and decondensation of chromatin occurs that depends on peptidylarginine deiminase 4 (PAD4) and neutrophil elastase (NE). Subsequently, proteins from neutrophil granules (e.g., NE, lactoferrin and myeloperoxidase) and the nucleus (histones) bind to decondensed DNA and the whole structure is ejected from the cell. The DNA decorated with potent antimicrobials and proteases can act to contain dissemination of infection and in sterile inflammation NETs were shown to degrade cytokines and chemokines via serine proteases. On the other hand, overproduction of NETs, or their inadequate removal and prolonged presence in vasculature or tissues, can lead to bystander damage or even initiation of diseases. Considering the pros and cons of NET formation, it is of relevance if the stage of neutrophil maturation (immature, mature and senescent cells) affects the capacity to produce NETs as the cells of different age-related phenotypes dominate in given (pathological) conditions. Moreover, the immune system of neonates and elderly individuals is weaker than in adulthood. Is the same pattern followed when it comes to NETs? The overall importance of individual and neutrophil age on the capacity to release NETs is reviewed in detail and the significance of these facts is discussed.
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Affiliation(s)
- Weronika Ortmann
- Department of Evolutionary Immunology, Institute of Zoology and Biomedical Research, Jagiellonian University, ul. Gronostajowa 9, 30-387, Krakow, Poland
| | - Elzbieta Kolaczkowska
- Department of Evolutionary Immunology, Institute of Zoology and Biomedical Research, Jagiellonian University, ul. Gronostajowa 9, 30-387, Krakow, Poland.
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32
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Jackaman C, Tomay F, Duong L, Abdol Razak NB, Pixley FJ, Metharom P, Nelson DJ. Aging and cancer: The role of macrophages and neutrophils. Ageing Res Rev 2017; 36:105-116. [PMID: 28390891 DOI: 10.1016/j.arr.2017.03.008] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/30/2017] [Accepted: 03/30/2017] [Indexed: 12/12/2022]
Abstract
Impaired immune function has been implicated in the declining health and higher incidence of cancer in the elderly. However, age-related changes to immunity are not completely understood. Neutrophils and macrophages represent the first line of defence yet their ability to phagocytose pathogens decrease with aging. Cytotoxic T lymphocytes are critical in eliminating tumors, but T cell function is also compromised with aging. T cell responses can be regulated by macrophages and may depend on the functional phenotype macrophages adopt in response to microenvironmental signals. This can range from pro-inflammatory, anti-tumorigenic M1 to anti-inflammatory, pro-tumorigenic M2 macrophages. Macrophages in healthy elderly adipose and hepatic tissue exhibit a more pro-inflammatory M1 phenotype compared to young hosts whilst immunosuppressive M2 macrophages increase in elderly lymphoid tissues, lung and muscle. These M2-like macrophages demonstrate altered responses to stimuli. Recent studies suggest that neutrophils also regulate T cell function and, like macrophages, neutrophil function is modulated with aging. It is possible that age-modified tissue-specific macrophages and neutrophils contribute to chronic low-grade inflammation that is associated with dysregulated macrophage-mediated immunosuppression, which together are responsible for development of multiple pathologies, including cancer. This review discusses recent advances in macrophage and neutrophil biology in healthy aging and cancer.
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Affiliation(s)
- Connie Jackaman
- School of Biomedical Sciences, Curtin Health and Innovation Research Institute, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, 6102, Australia.
| | - Federica Tomay
- School of Biomedical Sciences, Curtin Health and Innovation Research Institute, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, 6102, Australia
| | - Lelinh Duong
- School of Biomedical Sciences, Curtin Health and Innovation Research Institute, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, 6102, Australia
| | - Norbaini Bintu Abdol Razak
- School of Biomedical Sciences, Curtin Health and Innovation Research Institute, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, 6102, Australia
| | - Fiona J Pixley
- School of Medicine and Pharmacology, University of Western Australia, Nedlands, Western Australia, 6009, Australia
| | - Pat Metharom
- School of Biomedical Sciences, Curtin Health and Innovation Research Institute, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, 6102, Australia
| | - Delia J Nelson
- School of Biomedical Sciences, Curtin Health and Innovation Research Institute, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, 6102, Australia
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Khalaji S, Zondler L, KleinJan F, Nolte U, Mulaw MA, Danzer KM, Weishaupt JH, Gottschalk KE. Age Increases Monocyte Adhesion on Collagen. Sci Rep 2017; 7:46532. [PMID: 28513618 PMCID: PMC5434452 DOI: 10.1038/srep46532] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 03/16/2017] [Indexed: 01/17/2023] Open
Abstract
Adhesion of monocytes to micro-injuries on arterial walls is an important early step in the occurrence and development of degenerative atherosclerotic lesions. At these injuries, collagen is exposed to the blood stream. We are interested whether age influences monocyte adhesion to collagen under flow, and hence influences the susceptibility to arteriosclerotic lesions. Therefore, we studied adhesion and rolling of human peripheral blood monocytes from old and young individuals on collagen type I coated surface under shear flow. We find that firm adhesion of monocytes to collagen type I is elevated in old individuals. Pre-stimulation by lipopolysaccharide increases the firm adhesion of monocytes homogeneously in older individuals, but heterogeneously in young individuals. Blocking integrin αx showed that adhesion of monocytes to collagen type I is specific to the main collagen binding integrin αxβ2. Surprisingly, we find no significant age-dependent difference in gene expression of integrin αx or integrin β2. However, if all integrins are activated from the outside, no differences exist between the age groups. Altered integrin activation therefore causes the increased adhesion. Our results show that the basal increase in integrin activation in monocytes from old individuals increases monocyte adhesion to collagen and therefore the risk for arteriosclerotic plaques.
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Affiliation(s)
- Samira Khalaji
- Institute for Experimental Physics, Ulm University, Ulm, Germany
| | - Lisa Zondler
- Department of Neurology, Ulm University, Ulm, Germany
| | - Fenneke KleinJan
- Institute for Experimental Physics, Ulm University, Ulm, Germany
| | - Ulla Nolte
- Institute for Experimental Physics, Ulm University, Ulm, Germany
| | - Medhanie A Mulaw
- Institute for Experimental Cancer Research, Ulm University, Ulm, Germany
| | | | | | - Kay-E Gottschalk
- Institute for Experimental Physics, Ulm University, Ulm, Germany
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34
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da Silveira Cavalcante L, Branch DR, Duong TT, Yeung RS, Acker JP, Holovati JL. The immune-stimulation capacity of liposome-treated red blood cells. J Liposome Res 2017; 28:173-181. [DOI: 10.1080/08982104.2017.1295991] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Luciana da Silveira Cavalcante
- Canadian Blood Services Centre for Innovation, Edmonton, AB, Canada,
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada,
| | - Donald R. Branch
- Canadian Blood Services Centre for Innovation, Toronto, ON, Canada,
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada,
| | - Trang T. Duong
- The Hospital for Sick Children, Toronto, ON, Canada, and
| | - Rae S.M. Yeung
- The Hospital for Sick Children, Toronto, ON, Canada, and
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - Jason P. Acker
- Canadian Blood Services Centre for Innovation, Edmonton, AB, Canada,
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada,
| | - Jelena L. Holovati
- Canadian Blood Services Centre for Innovation, Edmonton, AB, Canada,
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada,
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35
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Albright JM, Dunn RC, Shults JA, Boe DM, Afshar M, Kovacs EJ. Advanced Age Alters Monocyte and Macrophage Responses. Antioxid Redox Signal 2016; 25:805-815. [PMID: 27357201 PMCID: PMC5107740 DOI: 10.1089/ars.2016.6691] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
SIGNIFICANCE With the growing population of baby boomers, there is a great need to determine the effects of advanced age on the function of the immune system. Recent Advances: It is universally accepted that advanced age is associated with a chronic low-grade inflammatory state that is referred to as inflamm-aging, which alters the function of both immune and nonimmune cells. Mononuclear phagocytes play a central role in both the initiation and resolution of inflammation in multiple organ systems and exhibit marked changes in phenotype and function in response to environmental cues, including the low levels of pro-inflammatory mediators seen in the aged. CRITICAL ISSUES Although we know a great deal about the function of immune cells in young adults and there is a growing body of literature focusing on aging of the adaptive immune system, much less is known about the impact of age on innate immunity and the critical role of the mononuclear phagocytes in this process. FUTURE DIRECTIONS In this article, there is a focus on the tissue-specific monocyte and macrophage subsets and how they are altered in the aged milieu, with the hope that this compilation of observations will spark an expansion of research in the field. Antioxid. Redox Signal. 25, 805-815.
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Affiliation(s)
- Joslyn M Albright
- 1 Department of Surgery, Loyola University Chicago Health Sciences Campus , Maywood, Illinois.,2 Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus , Maywood, Illinois
| | - Robert C Dunn
- 2 Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus , Maywood, Illinois.,3 Stritch School of Medicine, Loyola University Chicago Health Sciences Campus , Maywood, Illinois
| | - Jill A Shults
- 1 Department of Surgery, Loyola University Chicago Health Sciences Campus , Maywood, Illinois.,2 Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus , Maywood, Illinois
| | - Devin M Boe
- 4 Department of Surgery, University of Colorado Denver Anschutz Medical Campus , Aurora, Colorado
| | - Majid Afshar
- 2 Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus , Maywood, Illinois.,3 Stritch School of Medicine, Loyola University Chicago Health Sciences Campus , Maywood, Illinois.,5 Department of Medicine, Loyola University Chicago Health Sciences Campus , Maywood, Illinois.,6 Department of Public Health Sciences, Loyola University Chicago Health Sciences Campus , Maywood, Illinois
| | - Elizabeth J Kovacs
- 4 Department of Surgery, University of Colorado Denver Anschutz Medical Campus , Aurora, Colorado
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Domingues-Faria C, Vasson MP, Goncalves-Mendes N, Boirie Y, Walrand S. Skeletal muscle regeneration and impact of aging and nutrition. Ageing Res Rev 2016; 26:22-36. [PMID: 26690801 DOI: 10.1016/j.arr.2015.12.004] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 12/01/2015] [Accepted: 12/07/2015] [Indexed: 01/08/2023]
Abstract
After skeletal muscle injury a regeneration process takes place to repair muscle. Skeletal muscle recovery is a highly coordinated process involving cross-talk between immune and muscle cells. It is well known that the physiological activities of both immune cells and muscle stem cells decline with advancing age, thereby blunting the capacity of skeletal muscle to regenerate. The age-related reduction in muscle repair efficiency contributes to the development of sarcopenia, one of the most important factors of disability in elderly people. Preserving muscle regeneration capacity may slow the development of this syndrome. In this context, nutrition has drawn much attention: studies have demonstrated that nutrients such as amino acids, n-3 polyunsaturated fatty acids, polyphenols and vitamin D can improve skeletal muscle regeneration by targeting key functions of immune cells, muscle cells or both. Here we review the process of skeletal muscle regeneration with a special focus on the cross-talk between immune and muscle cells. We address the effect of aging on immune and skeletal muscle cells involved in muscle regeneration. Finally, the mechanisms of nutrient action on muscle regeneration are described, showing that quality of nutrition may help to preserve the capacity for skeletal muscle regeneration with age.
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37
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Arriaga-Pizano L, Ferat-Osorio E, Rodríguez-Abrego G, Mancilla-Herrera I, Domínguez-Cerezo E, Valero-Pacheco N, Pérez-Toledo M, Lozano-Patiño F, Laredo-Sánchez F, Malagón-Rangel J, Nellen-Hummel H, González-Bonilla C, Arteaga-Troncoso G, Cérbulo-Vázquez A, Pastelin-Palacios R, Klenerman P, Isibasi A, López-Macías C. Differential Immune Profiles in Two Pandemic Influenza A(H1N1)pdm09 Virus Waves at Pandemic Epicenter. Arch Med Res 2015; 46:651-8. [PMID: 26696552 PMCID: PMC4914610 DOI: 10.1016/j.arcmed.2015.12.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 12/01/2015] [Indexed: 11/26/2022]
Abstract
Background and Aims Severe influenza A(H1N1)pdm2009 virus infection cases are characterized by sustained immune activation during influenza pandemics. Seasonal flu data suggest that immune mediators could be modified by wave-related changes. Our aim was to determine the behavior of soluble and cell-related mediators in two waves at the epicenter of the 2009 influenza pandemic. Methods Leukocyte surface activation markers were studied in serum from peripheral blood samples, collected from the 1st (April–May, 2009) and 2nd (October 2009–February 2010) pandemic waves. Patients with confirmed influenza A(H1N1)pdm2009 virus infection (H1N1), influenza-like illness (ILI) or healthy donors (H) were analyzed. Results Serum IL-6, IL-4 and IL-10 levels were elevated in H1N1 patients from the 2nd pandemic wave. Additionally, the frequency of helper and cytotoxic T cells was reduced during the 1st wave, whereas CD69 expression in helper T cells was increased in the 2nd wave for both H1N1 and ILI patients. In contrast, CD62L expression in granulocytes from the ILI group was increased in both waves but in monocytes only in the 2nd wave. Triggering Receptor Expressed on Myeloid cells (TREM)-1 expression was elevated only in H1N1 patients at the 1st wave. Conclusions Our results show that during the 2009 influenza pandemic a T cell activation phenotype is observed in a wave-dependent fashion, with an expanded activation in the 2nd wave, compared to the 1st wave. Conversely, granulocyte and monocyte activation is infection-dependent. This evidence collected at the pandemic epicenter in 2009 could help us understand the differences in the underlying cellular mechanisms that drive the wave-related immune profile behaviors that occur against influenza viruses during pandemics.
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Affiliation(s)
- Lourdes Arriaga-Pizano
- Medical Research Unit in Immunochemistry, Specialties Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - Eduardo Ferat-Osorio
- Medical Research Unit in Immunochemistry, Specialties Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico; Gastrointestinal Surgery Service, Specialties Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | | | - Ismael Mancilla-Herrera
- Infectology and Immunology department, National Institute of Perinatology, SSA, Mexico City, Mexico
| | - Esteban Domínguez-Cerezo
- Medical Research Unit in Immunochemistry, Specialties Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico; Graduate Program on Immunology, ENCB-IPN, Mexico City, Mexico
| | - Nuriban Valero-Pacheco
- Medical Research Unit in Immunochemistry, Specialties Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico; Graduate Program on Immunology, ENCB-IPN, Mexico City, Mexico
| | - Marisol Pérez-Toledo
- Medical Research Unit in Immunochemistry, Specialties Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico; Graduate Program on Immunology, ENCB-IPN, Mexico City, Mexico
| | - Fernando Lozano-Patiño
- Internal Medicine Service, Specialties Hospital of the National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - Fernando Laredo-Sánchez
- Internal Medicine Service, Specialties Hospital of the National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - José Malagón-Rangel
- Internal Medicine Service, Specialties Hospital of the National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - Haiko Nellen-Hummel
- Internal Medicine Service, Specialties Hospital of the National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - César González-Bonilla
- Unit for Epidemiological Surveillance, National Medical Center La Raza, IMSS, Mexico City, Mexico
| | | | | | | | - Paul Klenerman
- Oxford Biomedical Research Centre and Oxford Martin School, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Armando Isibasi
- Medical Research Unit in Immunochemistry, Specialties Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico
| | - Constantino López-Macías
- Medical Research Unit in Immunochemistry, Specialties Hospital, National Medical Center Siglo XXI, IMSS, Mexico City, Mexico; Visiting Professor of Immunology, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
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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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de Pablo-Bernal RS, Cañizares J, Rosado I, Galvá MI, Alvarez-Ríos AI, Carrillo-Vico A, Ferrando-Martínez S, Muñoz-Fernández MÁ, Rafii-El-Idrissi Benhnia M, Pacheco YM, Ramos R, Leal M, Ruiz-Mateos E. Monocyte Phenotype and Polyfunctionality Are Associated With Elevated Soluble Inflammatory Markers, Cytomegalovirus Infection, and Functional and Cognitive Decline in Elderly Adults. J Gerontol A Biol Sci Med Sci 2015; 71:610-8. [PMID: 26286603 DOI: 10.1093/gerona/glv121] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 06/25/2015] [Indexed: 12/20/2022] Open
Abstract
Monocytes are mediators of the inflammatory response and include three subsets: classical, intermediate, and nonclassical. Little is known about the phenotypical and functional age-related changes in monocytes and their association with soluble inflammatory biomarkers, cytomegalovirus infection, and functional and mental decline. We assayed the activation ex vivo and the responsiveness to TLR2 and TLR4 agonists in vitro in the three subsets and assessed the intracellular production of IL1-alpha (α), IL1-beta (β), IL-6, IL-8, TNF-α, and IL-10 of elderly adults (median 83 [67-90] years old;n= 20) compared with young controls (median 35 [27-40] years old;n= 20). Ex vivo, the elderly adults showed a higher percentage of classical monocytes that expressed intracellular IL1-α (p= .001), IL1-β (p= .001), IL-6 (p= .002), and IL-8 (p= .007). Similar results were obtained both for the intermediate and nonclassical subsets and in vitro. Polyfunctionality was higher in the elderly adults. The functionality ex vivo was strongly associated with soluble inflammatory markers. The activation phenotype was independently associated with the anti-cytomegalovirus IgG levels and with functional and cognitive decline. These data demonstrate that monocytes are key cell candidates for the source of the high soluble inflammatory levels. Our findings suggest that cytomegalovirus infection might be a driving force in the activation of monocytes and is associated with the functional and cognitive decline.
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Affiliation(s)
- Rebeca Sara de Pablo-Bernal
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain
| | | | - Isaac Rosado
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain
| | | | - Ana Isabel Alvarez-Ríos
- Department of Clinical Biochemistry, Virgen del Rocío University Hospital IBiS/CSIC/SAS/University of Seville, Spain
| | - Antonio Carrillo-Vico
- Department of Medical Biochemistry and Molecular Biology and Immunology, University of Seville School of Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain. Red Temática de Investigación Cooperativa en Envejecimiento y Fragilidad (RETICEF)-Instituto de Salud Carlos III, Seville, Spain
| | | | - María Ángeles Muñoz-Fernández
- Laboratory of Molecular Immuno-Biology Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain. Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Mohammed Rafii-El-Idrissi Benhnia
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain. Department of Biochemistry and Molecular Biology and Immunology, Medical School, University of Seville, Spain
| | - Yolanda María Pacheco
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain
| | | | - Manuel Leal
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain
| | - Ezequiel Ruiz-Mateos
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology, and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain
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40
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Wu H, Ramanathan RK, Zamboni BA, Strychor S, Ramalingam S, Edwards RP, Friedland DM, Stoller RG, Belani CP, Maruca LJ, Bang YJ, Zamboni WC. Population pharmacokinetics of pegylated liposomal CKD-602 (S-CKD602) in patients with advanced malignancies. J Clin Pharmacol 2015; 52:180-94. [PMID: 21233302 DOI: 10.1177/0091270010394851] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
S-CKD602 is a pegylated long-circulating liposomal formulation of CKD-602, a potent topoisomerase I inhibitor. A population pharmacokinetic (PK) model for encapsulated and released CKD-602 following administration of S-CKD602 was developed to assess factors that may influence S-CKD602 PK. Plasma samples from 45 patients with solid tumors were collected in a phase 1 study. S-CKD602 was administered as a 1-hour intravenous infusion with doses ranging from 0.1 to 2.5 mg/m(2) . Plasma concentrations of encapsulated and released CKD-602 were used to develop a population PK model using NONMEM. PK of encapsulated CKD-602 was described by a 1-compartment model with nonlinear clearance, and PK of released CKD-602 was described by a 2-compartment model with linear clearance for all patients. Covariate analysis revealed that tumor in the liver was a significant covariate for clearance of encapsulated CKD-602 and that age significantly influenced the release rate of CKD-602 from S-CKD602. Maximum elimination rate in patients with liver tumor is 1.5-fold higher compared with patients without liver tumor. Release rate of CKD-602 from S-CKD602 in patients less than 60 years old was 2.7-fold higher compared with patients 60 years old or older. These observations have potential implications in the optimal dosing of liposomal agents.
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Affiliation(s)
- Huali Wu
- University of North Carolina (UNC) Eshelman School of Pharmacy, UNC, Chapel Hill, North CarolinaUNC Lineberger Comprehensive Cancer Center, UNC, Chapel Hill, North CarolinaUNC Institute for Pharmacogenomics and Individualized Therapy, UNC, Chapel Hill, North CarolinaCarolina Center for Cancer Nanotechology Excellence, UNC, Chapel Hill, North CarolinaUniversity of Pittsburgh Cancer Institute, Pittsburgh, PennsylvaniaSchool of Medicine, University of Pittsburgh, PittsburghDepartment of Mathematics, Carlow University, PittsburghCKD Research Institute, Chonan, KoreaSeoul National University Hospital, Seoul, Korea
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Reynolds LM, Ding J, Taylor JR, Lohman K, Soranzo N, de la Fuente A, Liu TF, Johnson C, Barr RG, Register TC, Donohue KM, Talor MV, Cihakova D, Gu C, Divers J, Siscovick D, Burke G, Post W, Shea S, Jacobs DR, Hoeschele I, McCall CE, Kritchevsky SB, Herrington D, Tracy RP, Liu Y. Transcriptomic profiles of aging in purified human immune cells. BMC Genomics 2015; 16:333. [PMID: 25898983 PMCID: PMC4417516 DOI: 10.1186/s12864-015-1522-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 04/10/2015] [Indexed: 01/08/2023] Open
Abstract
Background Transcriptomic studies hold great potential towards understanding the human aging process. Previous transcriptomic studies have identified many genes with age-associated expression levels; however, small samples sizes and mixed cell types often make these results difficult to interpret. Results Using transcriptomic profiles in CD14+ monocytes from 1,264 participants of the Multi-Ethnic Study of Atherosclerosis (aged 55–94 years), we identified 2,704 genes differentially expressed with chronological age (false discovery rate, FDR ≤ 0.001). We further identified six networks of co-expressed genes that included prominent genes from three pathways: protein synthesis (particularly mitochondrial ribosomal genes), oxidative phosphorylation, and autophagy, with expression patterns suggesting these pathways decline with age. Expression of several chromatin remodeler and transcriptional modifier genes strongly correlated with expression of oxidative phosphorylation and ribosomal protein synthesis genes. 17% of genes with age-associated expression harbored CpG sites whose degree of methylation significantly mediated the relationship between age and gene expression (p < 0.05). Lastly, 15 genes with age-associated expression were also associated (FDR ≤ 0.01) with pulse pressure independent of chronological age. Comparing transcriptomic profiles of CD14+ monocytes to CD4+ T cells from a subset (n = 423) of the population, we identified 30 age-associated (FDR < 0.01) genes in common, while larger sets of differentially expressed genes were unique to either T cells (188 genes) or monocytes (383 genes). At the pathway level, a decline in ribosomal protein synthesis machinery gene expression with age was detectable in both cell types. Conclusions An overall decline in expression of ribosomal protein synthesis genes with age was detected in CD14+ monocytes and CD4+ T cells, demonstrating that some patterns of aging are likely shared between different cell types. Our findings also support cell-specific effects of age on gene expression, illustrating the importance of using purified cell samples for future transcriptomic studies. Longitudinal work is required to establish the relationship between identified age-associated genes/pathways and aging-related diseases. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-1522-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lindsay M Reynolds
- Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - Jingzhong Ding
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - Jackson R Taylor
- Department of Gerontology and Geriatric Medicine, J. Paul Sticht Center on Aging, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - Kurt Lohman
- Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | | | - Alberto de la Fuente
- FBN, Leibniz Institute for Farm Animal Biology, Genetics and Biometry, Mecklenburg-Vorpommern, Germany.
| | - Tie Fu Liu
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - Craig Johnson
- Departments of Medicine and Epidemiology, Cardiovascular Health Research Unit, University of Washington, Seattle, Washington, 98115, USA.
| | - R Graham Barr
- Departments of Medicine and Epidemiology, Columbia University, New York, New York, 10032, USA.
| | - Thomas C Register
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - Kathleen M Donohue
- Departments of Medicine and Epidemiology, Columbia University, New York, New York, 10032, USA.
| | - Monica V Talor
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland, 21205, USA.
| | - Daniela Cihakova
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland, 21205, USA.
| | - Charles Gu
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, 63110, USA.
| | - Jasmin Divers
- Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - David Siscovick
- New York Academy of Medicine, New York, New York, 10029, USA.
| | - Gregory Burke
- Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - Wendy Post
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland, 21205, USA.
| | - Steven Shea
- Departments of Medicine and Epidemiology, Columbia University, New York, New York, 10032, USA.
| | - David R Jacobs
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota, 55454, USA.
| | - Ina Hoeschele
- Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, Virginia, 24061, USA.
| | - Charles E McCall
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA. .,Department of Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - Stephen B Kritchevsky
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA. .,Department of Gerontology and Geriatric Medicine, J. Paul Sticht Center on Aging, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - David Herrington
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
| | - Russell P Tracy
- Department of Pathology, University of Vermont, Colchester, Vermont, 05446, USA.
| | - Yongmei Liu
- Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27157, USA.
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Wu H, Infante JR, Keedy VL, Jones SF, Chan E, Bendell JC, Lee W, Kirschbrown WP, Zamboni BA, Ikeda S, Kodaira H, Rothenberg ML, Burris HA, Zamboni WC. Factors affecting the pharmacokinetics and pharmacodynamics of PEGylated liposomal irinotecan (IHL-305) in patients with advanced solid tumors. Int J Nanomedicine 2015; 10:1201-9. [PMID: 25709442 PMCID: PMC4334335 DOI: 10.2147/ijn.s62911] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
IHL-305 is a PEGylated liposomal formulation of irinotecan (CPT-11). The objective of this study was to evaluate the factors associated with interpatient variability in the pharmacokinetics and pharmacodynamics of IHL-305 in patients with advanced solid tumors. IHL-305 was administered intravenously once every 4 weeks as part of a Phase I study. Pharmacokinetic studies of the liposomal sum total CPT-11, released CPT-11, SN-38, SN-38G, 7-ethyl-10-[4-N-(5-aminopentanoic acid)-1-piperidino]-carbonyloxycamptothecin, and 7-ethyl-10-[4-amino-1-piperidino]-carbonyloxycamptothecin in plasma were performed. Noncompartmental and compartmental pharmacokinetic analyses were conducted using pharmacokinetic data for sum total CPT-11. The pharmacokinetic variability of IHL-305 is associated with linear and nonlinear clearance. Patients whose age and body composition (ratio of total body weight to ideal body weight [TBW/IBW]) were greater than the median age and TBW/IBW of the study had a 1.7-fold to 2.6-fold higher ratio of released CPT-11 area under the concentration versus time curve (AUC) to sum total CPT-11 AUC. Patients aged <60 years had a 1.3-fold higher ratio of percent decrease in monocytes at nadir to percent decrease in absolute neutrophil count at nadir as compared with patients aged ≥60 years. There was an inverse relationship between patient age and percent decrease in monocytes at nadir, ie, younger patients have a higher percent decrease in monocytes. Patients with a higher percent decrease in monocytes at nadir have a decreased plasma exposure of sum total CPT-11. The pharmacokinetics and pharmacodynamics of IHL-305 are consistent with those of other PEGylated liposomal carriers. Interpatient variability in the pharmacokinetics and pharmacodynamics of IHL-305 was associated with age, body composition, and monocytes.
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Affiliation(s)
- Huali Wu
- UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | | | | | - Suzanne F Jones
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, USA
| | - Emily Chan
- Vanderbilt University, Nashville, TN, USA
| | | | - Wooin Lee
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY, USA
| | | | - Beth A Zamboni
- Department of Mathematics, Carlow University, Pittsburgh, PA, USA
| | - Satoshi Ikeda
- Yakult Honsha Co., Ltd., Medical Development Department, Tokyo, Japan
| | - Hiroshi Kodaira
- Yakult Honsha Co., Ltd., Medical Development Department, Tokyo, Japan
| | | | - Howard A Burris
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, USA
| | - William C Zamboni
- UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA ; UNC Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA ; UNC Institute for Pharmacogenomics and Individualized Therapy, University of North Carolina, Chapel Hill, NC, USA ; Carolina Center for Cancer Nanotechology Excellence, University of North Carolina, Chapel Hill, NC, USA
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Vester H, Huber-Lang MS, Kida Q, Scola A, van Griensven M, Gebhard F, Nüssler AK, Perl M. The immune response after fracture trauma is different in old compared to young patients. Immun Ageing 2014; 11:20. [PMID: 25620994 PMCID: PMC4305233 DOI: 10.1186/s12979-014-0020-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 11/16/2014] [Indexed: 01/11/2023]
Abstract
BACKGROUND Despite significant medical progress and improved treatment, surgical procedures of proximal femur fractures in older patients are still associated with a high postoperative complication and mortality rate. Recently, several authors investigated the phenomenon of immunoageing, indicating differences in the ageing immune system. The aim of the present multi-center prospective clinical trial was to analyze differences in the posttraumatic immune response of old patients compared to young patients. METHODS Blood was collected from young patients (<50 y, n = 20) with long bone fractures (YF), old patients (>70 y, n = 21) with proximal femur fractures (OF) upon clinical admission and within 6 hours after surgery, and two healthy age matched control groups (YH & OH). Serum TRAIL- and cytokine concentrations were analyzed via cytometric bead array, Fas-Ligand and TNF-Receptor-I via ELISA. CD15(+) magnetic bead-isolated neutrophils (PMN) were TUNEL stained. RESULTS IL-6 was significantly increased only in OF after trauma and surgery whereas YF patient exhibited a marked decrease of TNF after trauma. Interestingly, a significant increase of GM-CSF serum levels was observed in YF only, whereas OF exhibited a decrease of systemic IFN-γ concentrations after trauma and after surgery. The healthy controls, old and young, had more or less similar inflammation levels. Moreover, TRAIL serum levels were diminished in OF after trauma and even further after surgery whereas in YF this was only observed after the surgical procedure. Fas-L concentrations were reduced only in YF after surgery or trauma. PMN apoptosis was significantly reduced only in YF, indicating activation of the innate immune system. DISCUSSION In summary, our data suggest that the posttraumatic immune response is differently regulated in old and young trauma patients. The operative procedure further impacts these differences after trauma. Whether the decreased activation of PMNs and phagocytes along with the observed dysregulation of the posttraumatic inflammatory response contributes to the high perioperative mortality rate of the elderly suffering from a proximal femoral fracture requires further investigation.
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Affiliation(s)
- Helen Vester
- />Department of Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Markus S Huber-Lang
- />Department of Orthopedic Trauma, Hand-, Plastic-, and Reconstructive Surgery, University Hospital Ulm, Ulm, Germany
| | - Qerim Kida
- />Department of Orthopedic Trauma, Hand-, Plastic-, and Reconstructive Surgery, University Hospital Ulm, Ulm, Germany
| | - Alexander Scola
- />Department of Orthopedic Trauma, Hand-, Plastic-, and Reconstructive Surgery, University Hospital Ulm, Ulm, Germany
| | - Martijn van Griensven
- />Department of Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Florian Gebhard
- />Department of Orthopedic Trauma, Hand-, Plastic-, and Reconstructive Surgery, University Hospital Ulm, Ulm, Germany
| | - Andreas K Nüssler
- />Siegfried Weller Institute for Trauma Research, BG Trauma Center Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Mario Perl
- />Department of Orthopedic Trauma, Hand-, Plastic-, and Reconstructive Surgery, University Hospital Ulm, Ulm, Germany
- />BG-Trauma Center Murnau, Prof.-Küntscher-Str. 8, 82418 Murnau, Germany
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The absolute lymphocyte to monocyte ratio is associated with poor prognosis in classical Hodgkin lymphoma patients younger than 60 years of age. Hematol Oncol 2014; 33:133-40. [DOI: 10.1002/hon.2155] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 05/28/2014] [Accepted: 06/25/2014] [Indexed: 11/07/2022]
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Koh YW, Park CS, Yoon DH, Suh C, Huh J. Should the cut-off values of the lymphocyte to monocyte ratio for prediction of prognosis in diffuse large B-cell lymphoma be changed in elderly patients? Eur J Haematol 2014; 93:340-8. [PMID: 24766257 DOI: 10.1111/ejh.12354] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2014] [Indexed: 01/20/2023]
Abstract
OBJECTIVES A recent study suggested a prognostic role for the peripheral blood absolute lymphocyte/monocyte ratio (LMR) at diagnosis of diffuse large B-cell lymphoma (DLBCL). Here, we investigated the significance of LMR in DLBCL patients in relation to advanced age. METHODS We examined the prognostic impact of LMR in 603 DLBCL treated with rituximab plus CHOP, using the receiver operating characteristic curve analysis for optimal cut-off values, and performed a subgroup analysis according to age. RESULTS In elderly groups (age ≥ 70), absolute monocyte count was significantly increased, whereas LMR was significantly decreased compared to younger groups. Patients under 70 yr of age with LMR < 3.04 had significantly lower overall survival (OS) and progression-free survival (PFS) compared to those with LMR ≥ 3.04 (P < 0.001 for both). However, in elderly patients (age ≥ 70), there was no significant difference in OS between patients' LMR levels using the 3.04 cut-off value (P = 0.059). Therefore, a new LMR cut-off value of 2.36 was selected in elderly patients, having observed that elderly patients with LMR < 2.36 had significantly lower OS compared to those with LMR ≥ 2.36 (P = 0.021). In multivariate analysis, LMR remained a significant prognostic factor for OS (P = 0.004) or PFS (P < 0.001). CONCLUSIONS We suggest the use of a different cut-off value of LMR in elderly patients to distinguish high-risk from low-risk groups.
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Affiliation(s)
- Young Wha Koh
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
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de Araújo AL, Silva LCR, Fernandes JR, Benard G. Preventing or reversing immunosenescence: can exercise be an immunotherapy? Immunotherapy 2014; 5:879-93. [PMID: 23902557 DOI: 10.2217/imt.13.77] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
There is now a strong body of evidence demonstrating that aging is accompanied by severe alterations in the immune system, a process known as immunosenescence. Among these changes are alterations in T-cell subpopulation size, cytokine secretion pattern, cell replicative capacity and antibody production, all of which culminate in a proinflammatory state called 'inflammaging' and a diminished capacity to respond to new antigens. These alterations are closely related to the increased mortality and morbidity rates observed in this population. However, the role of exercise on the prevention or treatment of immunosenescence is virtually unknown. Data gathered from the literature regarding the effects of physical activity on immune system aging are still limited and conflicting, with existing reports either advocating benefits or asserting a lack of evidence. Exercise as part of a healthy lifestyle has already been shown to provide long-term benefits with regard to cardiovascular, cognitive, psychosocial and other aspects of the elderly. If positive effects are also observed for immunosenescence, exercise could be a highly cost-effective measure to improve human quality of life compared with other strategies currently being pursued.
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Affiliation(s)
- Adriana L de Araújo
- Laboratory of Dermatology & Immunodeficiencies, Dermatology Division, Clinics Hospital, São Paulo, Brazil
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Cui YW, Kawano Y, Yamasaki R, Shi N, Masaki K, Isobe N, Yonekawa T, Matsushita T, Tateishi T, Hayashi S, Kira JI. Decreased CCR2 and CD62L expressions on peripheral blood classical monocytes in amyotrophic lateral sclerosis. ACTA ACUST UNITED AC 2014. [DOI: 10.1111/cen3.12088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yi Wen Cui
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Yuji Kawano
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Ryo Yamasaki
- Department of Neurological Therapeutics; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Nan Shi
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Katsuhisa Masaki
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Noriko Isobe
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Tomomi Yonekawa
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Takuya Matsushita
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Takahisa Tateishi
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Shintaro Hayashi
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Jun-ichi Kira
- Department of Neurology; Neurological Institute; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
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Shaw AC, Goldstein DR, Montgomery RR. Age-dependent dysregulation of innate immunity. Nat Rev Immunol 2013; 13:875-87. [PMID: 24157572 DOI: 10.1038/nri3547] [Citation(s) in RCA: 718] [Impact Index Per Article: 65.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
As we age, the innate immune system becomes dysregulated and is characterized by persistent inflammatory responses that involve multiple immune and non-immune cell types and that vary depending on the cell activation state and tissue context. This ageing-associated basal inflammation, particularly in humans, is thought to be induced by several factors, including the reactivation of latent viral infections and the release of endogenous damage-associated ligands of pattern recognition receptors (PRRs). Innate immune cell functions that are required to respond to pathogens or vaccines, such as cell migration and PRR signalling, are also impaired in aged individuals. This immune dysregulation may affect conditions associated with chronic inflammation, such as atherosclerosis and Alzheimer's disease.
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Affiliation(s)
- Albert C Shaw
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut 06520, USA
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Schmitt V, Rink L, Uciechowski P. The Th17/Treg balance is disturbed during aging. Exp Gerontol 2013; 48:1379-86. [PMID: 24055797 DOI: 10.1016/j.exger.2013.09.003] [Citation(s) in RCA: 156] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 08/06/2013] [Accepted: 09/13/2013] [Indexed: 10/26/2022]
Abstract
Aging is associated with multiple changes in the proliferative and functional abilities of the immune system which are not related to any pathology but consequences in immunosenescence and inflammaging. T helper (TH) 17 cells have been implicated in the development of autoimmune and chronic inflammatory diseases in humans. Additionally, a reciprocal relationship between these pro-inflammatory TH17 and the anti-inflammatory regulatory T cells (Tregs) has been described. Recent studies reported an increase of TH17 cells in aged humans and aged mice, but the role of TH17 cells and their relation to Tregs is poorly understood in human aging. This study investigated the proportion of TH17 (CD4+ IL23 receptor(R)+) cells and Tregs (CD4+ Foxp3+) as well as Interleukin (IL)-17 and IL-10 production in four different age groups from human healthy donors. The data revealed a continual increase of basal CD4+ IL23R+ cell amounts in the different age groups. By analyzing the balance of both T-cell subsets it was observed that, on a basal resting level, TH17 cells were significantly increased in older individuals whereas Tregs were reduced. However, the TH17/Treg ratio decreased age-dependently after stimulation and was accompanied by elevated Foxp3 mRNA and IL-10 protein expressions. In conclusion, changes of the TH17/Treg ratios in combination with altered cytokine expression during aging may contribute to an imbalance between the pro-inflammatory and the anti-inflammatory immune response. This indicates a higher susceptibility to develop inflammatory diseases with increasing age.
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Affiliation(s)
- Vanessa Schmitt
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany
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Potasman I, Grupper M. Leukemoid reaction: spectrum and prognosis of 173 adult patients. Clin Infect Dis 2013; 57:e177-81. [PMID: 23994818 DOI: 10.1093/cid/cit562] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The prognosis of patients with leukemoid reaction (LR) depends mainly on their underlying illness. Our aim was to investigate the etiologies and prognosis of a mixed group of patients with LR. METHODS We identified 173 patients who had ≥30.0 × 10(9) leukocytes/µL without hematologic malignancies. Causes of LR and factors contributing to death were analyzed. RESULTS Patients with LR constituted 0.59% of all admitted adults. The median age was 75 years, but 20 patients were aged <40 years. There was no difference in LR prevalence by gender (female/male = 88/85). Average white blood cell (WBC) count was 37.7 × 10(9)/µL. Fourteen patients (8.0%) had a WBC count of >50.0 × 10(9)/µL. The median duration of LR was 1 day, but 39 patients had prolonged LR (>1 day). Infection was the most common cause of LR (n = 83, 47.9%; 95% confidence interval, 40.7-55.4), followed by ischemia/stress (27.7%), inflammation (6.9%), and obstetric diagnoses (6.9%). Higher WBC counts were significantly associated with positive blood cultures (P = .017) or a positive Clostridium difficile toxin (P = .001). Antibiotics were prescribed for 140 patients (80.9%). Sixty-six patients (38.1%) died during hospitalization. Those with prolonged LR had an in-hospital mortality rate of 61.5%. Factors found to be highly correlated with death were age (odds ratio [OR] = 1.051, P < .001), any infectious diagnosis (OR = 2.574, P = .014), and sepsis (OR = 3.752, P = .001). CONCLUSIONS LR carries a grave prognosis, especially among the elderly and those with sepsis. LR was found to have multiple etiologies including infections, stress, inflammation, and obstetric diagnoses.
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Affiliation(s)
- Israel Potasman
- Infectious Diseases Unit, Bnai Zion Medical Centre and the Rappaport Faculty of Medicine, Technion, Haifa, Israel
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