1
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Ma F, Ghimire L, Ren Q, Fan Y, Chen T, Balasubramanian A, Hsu A, Liu F, Yu H, Xie X, Xu R, Luo HR. Gasdermin E dictates inflammatory responses by controlling the mode of neutrophil death. Nat Commun 2024; 15:386. [PMID: 38195694 PMCID: PMC10776763 DOI: 10.1038/s41467-023-44669-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 12/21/2023] [Indexed: 01/11/2024] Open
Abstract
Both lytic and apoptotic cell death remove senescent and damaged cells in living organisms. However, they elicit contrasting pro- and anti-inflammatory responses, respectively. The precise cellular mechanism that governs the choice between these two modes of death remains incompletely understood. Here we identify Gasdermin E (GSDME) as a master switch for neutrophil lytic pyroptotic death. The tightly regulated GSDME cleavage and activation in aging neutrophils are mediated by proteinase-3 and caspase-3, leading to pyroptosis. GSDME deficiency does not alter neutrophil overall survival rate; instead, it specifically precludes pyroptosis and skews neutrophil death towards apoptosis, thereby attenuating inflammatory responses due to augmented efferocytosis of apoptotic neutrophils by macrophages. In a clinically relevant acid-aspiration-induced lung injury model, neutrophil-specific deletion of GSDME reduces pulmonary inflammation, facilitates inflammation resolution, and alleviates lung injury. Thus, by controlling the mode of neutrophil death, GSDME dictates host inflammatory outcomes, providing a potential therapeutic target for infectious and inflammatory diseases.
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Affiliation(s)
- Fengxia Ma
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, CAMS Key Laboratory for Prevention and Control of Hematological Disease Treatment Related Infection, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.
- Tianjin Institutes of Health Science, Chinese Academy of Medical Sciences, Tianjin, China.
| | - Laxman Ghimire
- Department of Pathology, Dana-Farber/Harvard Cancer Center, PhD Program in Immunology, Harvard Medical School; Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA, 02115, USA
| | - Qian Ren
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, CAMS Key Laboratory for Prevention and Control of Hematological Disease Treatment Related Infection, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Chinese Academy of Medical Sciences, Tianjin, China
| | - Yuping Fan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, CAMS Key Laboratory for Prevention and Control of Hematological Disease Treatment Related Infection, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Chinese Academy of Medical Sciences, Tianjin, China
| | - Tong Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, CAMS Key Laboratory for Prevention and Control of Hematological Disease Treatment Related Infection, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Chinese Academy of Medical Sciences, Tianjin, China
| | - Arumugam Balasubramanian
- Department of Pathology, Dana-Farber/Harvard Cancer Center, PhD Program in Immunology, Harvard Medical School; Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA, 02115, USA
| | - Alan Hsu
- Department of Pathology, Dana-Farber/Harvard Cancer Center, PhD Program in Immunology, Harvard Medical School; Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA, 02115, USA
| | - Fei Liu
- Department of Pathology, Dana-Farber/Harvard Cancer Center, PhD Program in Immunology, Harvard Medical School; Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA, 02115, USA
| | - Hongbo Yu
- VA Boston Healthcare System, Department of Pathology and Laboratory Medicine, 1400 VFW Parkway, West Roxbury, MA, 02132, USA
| | - Xuemei Xie
- Department of Pathology, Dana-Farber/Harvard Cancer Center, PhD Program in Immunology, Harvard Medical School; Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA, 02115, USA
| | - Rong Xu
- Department of Pathology, Dana-Farber/Harvard Cancer Center, PhD Program in Immunology, Harvard Medical School; Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA, 02115, USA
| | - Hongbo R Luo
- Department of Pathology, Dana-Farber/Harvard Cancer Center, PhD Program in Immunology, Harvard Medical School; Department of Laboratory Medicine, Boston Children's Hospital, Enders Research Building, Room 811, Boston, MA, 02115, USA.
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2
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Krémer V, Godon O, Bruhns P, Jönsson F, de Chaisemartin L. Isolation methods determine human neutrophil responses after stimulation. Front Immunol 2023; 14:1301183. [PMID: 38077317 PMCID: PMC10704165 DOI: 10.3389/fimmu.2023.1301183] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 11/06/2023] [Indexed: 12/18/2023] Open
Abstract
Studying neutrophils is challenging due to their limited lifespan, inability to proliferate, and resistance to genetic manipulation. Neutrophils can sense various cues, making them susceptible to activation by blood collection techniques, storage conditions, RBC lysis, and the isolation procedure itself. Here we assessed the impact of the five most used methods for neutrophil isolation on neutrophil yield, purity, activation status and responsiveness. We monitored surface markers, reactive oxygen species production, and DNA release as a surrogate for neutrophil extracellular trap (NET) formation. Our results show that neutrophils isolated by negative immunomagnetic selection and density gradient methods, without RBC lysis, resembled untouched neutrophils in whole blood. They were also less activated and more responsive to milder stimuli in functional assays compared to neutrophils obtained using density gradients requiring RBC lysis. Our study highlights the importance of selecting the appropriate method for studying neutrophils, and underscores the need for standardizing isolation protocols to facilitate neutrophil subset characterization and inter-study comparisons.
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Affiliation(s)
- Vanessa Krémer
- Institut Pasteur, Université Paris-Cité, Institut national de la santé et de la recherche (INSERM) Unité mixte de recherche (UMR)1222, Antibodies in Therapy and Pathology, Paris, France
- Inflammation, Microbiome and Immunosurveillance, INSERM, Université Paris-Saclay, Orsay, France
| | - Ophélie Godon
- Institut Pasteur, Université Paris-Cité, Institut national de la santé et de la recherche (INSERM) Unité mixte de recherche (UMR)1222, Antibodies in Therapy and Pathology, Paris, France
| | - Pierre Bruhns
- Institut Pasteur, Université Paris-Cité, Institut national de la santé et de la recherche (INSERM) Unité mixte de recherche (UMR)1222, Antibodies in Therapy and Pathology, Paris, France
| | - Friederike Jönsson
- Institut Pasteur, Université Paris-Cité, Institut national de la santé et de la recherche (INSERM) Unité mixte de recherche (UMR)1222, Antibodies in Therapy and Pathology, Paris, France
- Centre national de la recherche scientifique (CNRS), Paris, France
| | - Luc de Chaisemartin
- Institut Pasteur, Université Paris-Cité, Institut national de la santé et de la recherche (INSERM) Unité mixte de recherche (UMR)1222, Antibodies in Therapy and Pathology, Paris, France
- Inflammation, Microbiome and Immunosurveillance, INSERM, Université Paris-Saclay, Orsay, France
- L'Assistance Publique - Hôpitaux de Paris (APHP), Bichat Hospital, Immunology Department, Paris, France
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3
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Tjønnfjord SKV, Ali MM, Tjønnfjord GE. Chronic neutropenia in adults. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2023; 143:22-0491. [PMID: 37341406 DOI: 10.4045/tidsskr.22.0491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023] Open
Abstract
Neutrophils are an important component of the innate immune system, and they prevent bacterial and fungal infections by phagocytosis and killing of pathogens. Neutropenia is defined as an abnormally low number of circulating neutrophils, and the term chronic neutropenia is used when it lasts more than three months. The objective of this clinical review is to raise awareness among doctors in Norway of chronic neutropenia and possible causes. A patient with severe neutropenia and fever requires immediate admission to hospital and initiation of empiric sepsis treatment before the cause of neutropenia has been determined, but patients with chronic neutropenia do not always require rapid and extensive workup.
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Affiliation(s)
| | - Maryan Mohamed Ali
- Avdeling for blodsykdommer, Oslo universitetssykehus, og, Institutt for klinisk medisin, Universitetet i Oslo
| | - Geir E Tjønnfjord
- Avdeling for blodsykdommer, Oslo universitetssykehus, og, Institutt for klinisk medisin, Universitetet i Oslo
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4
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Fridlich O, Peretz A, Fox-Fisher I, Pyanzin S, Dadon Z, Shcolnik E, Sadeh R, Fialkoff G, Sharkia I, Moss J, Arpinati L, Nice S, Nogiec CD, Ahuno ST, Li R, Taborda E, Dunkelbarger S, Fridlender ZG, Polak P, Kaplan T, Friedman N, Glaser B, Shemer R, Constantini N, Dor Y. Elevated cfDNA after exercise is derived primarily from mature polymorphonuclear neutrophils, with a minor contribution of cardiomyocytes. Cell Rep Med 2023:101074. [PMID: 37290439 DOI: 10.1016/j.xcrm.2023.101074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 08/25/2022] [Accepted: 05/15/2023] [Indexed: 06/10/2023]
Abstract
Strenuous physical exercise causes a massive elevation in the concentration of circulating cell-free DNA (cfDNA), which correlates with effort intensity and duration. The cellular sources and physiological drivers of this phenomenon are unknown. Using methylation patterns of cfDNA and associated histones, we show that cfDNA in exercise originates mostly in extramedullary polymorphonuclear neutrophils. Strikingly, cardiomyocyte cfDNA concentration increases after a marathon, consistent with elevated troponin levels and indicating low-level, delayed cardiac cell death. Physical impact, low oxygen levels, and elevated core body temperature contribute to neutrophil cfDNA release, while muscle contraction, increased heart rate, β-adrenergic signaling, or steroid treatment fail to cause elevation of cfDNA. Physical training reduces neutrophil cfDNA release after a standard exercise, revealing an inverse relationship between exercise-induced cfDNA release and training level. We speculate that the release of cfDNA from neutrophils in exercise relates to the activation of neutrophils in the context of exercise-induced muscle damage.
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Affiliation(s)
- Ori Fridlich
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ayelet Peretz
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ilana Fox-Fisher
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Sheina Pyanzin
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ziv Dadon
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Eilon Shcolnik
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Ronen Sadeh
- School of Computer Science and Engineering, The Hebrew University of Jerusalem, Israel; The Lautenberg Center for Immunology and Cancer Research, The Institute for Medical Research Israel-Canada, Hebrew University of Jerusalem, Israel
| | - Gavriel Fialkoff
- School of Computer Science and Engineering, The Hebrew University of Jerusalem, Israel; The Lautenberg Center for Immunology and Cancer Research, The Institute for Medical Research Israel-Canada, Hebrew University of Jerusalem, Israel
| | - Israa Sharkia
- School of Computer Science and Engineering, The Hebrew University of Jerusalem, Israel; The Lautenberg Center for Immunology and Cancer Research, The Institute for Medical Research Israel-Canada, Hebrew University of Jerusalem, Israel
| | - Joshua Moss
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ludovica Arpinati
- Institute of Pulmonary Medicine, Hadassah Medical Center and Hebrew University of Jerusalem, Israel
| | - Shachar Nice
- Heidi Rothberg Sport Medicine Center, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Christopher D Nogiec
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Bouvé College of Health Sciences, Northeastern University, Boston, MA, USA
| | - Samuel Terkper Ahuno
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Rui Li
- Bouvé College of Health Sciences, Northeastern University, Boston, MA, USA
| | - Eddie Taborda
- Bouvé College of Health Sciences, Northeastern University, Boston, MA, USA
| | - Sonia Dunkelbarger
- Bouvé College of Health Sciences, Northeastern University, Boston, MA, USA
| | - Zvi G Fridlender
- Institute of Pulmonary Medicine, Hadassah Medical Center and Hebrew University of Jerusalem, Israel
| | - Paz Polak
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Tommy Kaplan
- School of Computer Science and Engineering, The Hebrew University of Jerusalem, Israel
| | - Nir Friedman
- School of Computer Science and Engineering, The Hebrew University of Jerusalem, Israel; The Lautenberg Center for Immunology and Cancer Research, The Institute for Medical Research Israel-Canada, Hebrew University of Jerusalem, Israel
| | - Benjamin Glaser
- Department of Endocrinology and Metabolism, Hadassah Medical Center and Hebrew University of Jerusalem-Hadassah Medical School, Jerusalem, Israel
| | - Ruth Shemer
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Naama Constantini
- Heidi Rothberg Sport Medicine Center, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Yuval Dor
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, Israel.
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5
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Abstract
Neutrophils or polymorphonuclear neutrophils (PMNs) are an important component of innate host defense. These phagocytic leukocytes are recruited to infected tissues and kill invading microbes. There are several general characteristics of neutrophils that make them highly effective as antimicrobial cells. First, there is tremendous daily production and turnover of granulocytes in healthy adults-typically 1011 per day. The vast majority (~95%) of these cells are neutrophils. In addition, neutrophils are mobilized rapidly in response to chemotactic factors and are among the first leukocytes recruited to infected tissues. Most notably, neutrophils contain and/or produce an abundance of antimicrobial molecules. Many of these antimicrobial molecules are toxic to host cells and can destroy host tissues. Thus, neutrophil activation and turnover are highly regulated processes. To that end, aged neutrophils undergo apoptosis constitutively, a process that contains antimicrobial function and proinflammatory capacity. Importantly, apoptosis facilitates nonphlogistic turnover of neutrophils and removal by macrophages. This homeostatic process is altered by interaction with microbes and their products, as well as host proinflammatory molecules. Microbial pathogens can delay neutrophil apoptosis, accelerate apoptosis following phagocytosis, or cause neutrophil cytolysis. Here, we review these processes and provide perspective on recent studies that have potential to impact this paradigm.
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Affiliation(s)
- Scott D Kobayashi
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
| | - Frank R DeLeo
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
| | - Mark T Quinn
- Department of Microbiology & Cell Biology, Montana State University, Bozeman, Montana, USA
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6
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Pham TN, Coupey J, Candeias SM, Ivanova V, Valable S, Thariat J. Beyond lymphopenia, unraveling radiation-induced leucocyte subpopulation kinetics and mechanisms through modeling approaches. J Exp Clin Cancer Res 2023; 42:50. [PMID: 36814272 PMCID: PMC9945629 DOI: 10.1186/s13046-023-02621-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
Leucocyte subpopulations in both lymphoid and myeloid lineages have a significant impact on antitumor immune response. While radiation-induced lymphopenia is being studied extensively, radiation effects on lymphoid and myeloid subtypes have been relatively less addressed. Interactions between leucocyte subpopulations, their specific radiation sensitivity and the specific kinetics of each subpopulation can be modeled based on both experimental data and knowledge of physiological leucocyte depletion, production, proliferation, maturation and homeostasis. Modeling approaches of the leucocyte kinetics that may be used to unravel mechanisms underlying radiation induced-leucopenia and prediction of changes in cell counts and compositions after irradiation are presented in this review. The approaches described open up new possibilities for determining the influence of irradiation parameters both on a single-time point of acute effects and the subsequent recovery of leukocyte subpopulations. Utilization of these approaches to model kinetic data in post-radiotherapy states may be a useful tool for further development of new treatment strategies or for the combination of radiotherapy and immunotherapy.
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Affiliation(s)
- Thao-Nguyen Pham
- grid.412043.00000 0001 2186 4076Normandie Univ, UNICAEN, CNRS, ISTCT, GIP CYCERON, 14000 Caen, France ,grid.460771.30000 0004 1785 9671Laboratoire de Physique Corpusculaire UMR6534 IN2P3/ENSICAEN, Normandie Université, Caen, France
| | - Julie Coupey
- grid.412043.00000 0001 2186 4076Normandie Univ, UNICAEN, CNRS, ISTCT, GIP CYCERON, 14000 Caen, France
| | - Serge M. Candeias
- grid.457348.90000 0004 0630 1517Univ. Grenoble Alpes, CEA, CNRS, IRIG-LCBM-UMR5249, 38054 Grenoble, France
| | - Viktoriia Ivanova
- grid.412043.00000 0001 2186 4076Normandie Univ, UNICAEN, CNRS, ISTCT, GIP CYCERON, 14000 Caen, France
| | - Samuel Valable
- Normandie Univ, UNICAEN, CNRS, ISTCT, GIP CYCERON, 14000, Caen, France.
| | - Juliette Thariat
- Laboratoire de Physique Corpusculaire UMR6534 IN2P3/ENSICAEN, Normandie Université, Caen, France. .,Department of Radiation Oncology, Centre François Baclesse, Caen, Normandy, France.
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7
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Tang H, Gu Y, Jiang L, Zheng G, Pan Z, Jiang X. The role of immune cells and associated immunological factors in the immune response to spinal cord injury. Front Immunol 2023; 13:1070540. [PMID: 36685599 PMCID: PMC9849245 DOI: 10.3389/fimmu.2022.1070540] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 12/05/2022] [Indexed: 01/06/2023] Open
Abstract
Spinal cord injury (SCI) is a devastating neurological condition prevalent worldwide. Where the pathological mechanisms underlying SCI are concerned, we can distinguish between primary injury caused by initial mechanical damage and secondary injury characterized by a series of biological responses, such as vascular dysfunction, oxidative stress, neurotransmitter toxicity, lipid peroxidation, and immune-inflammatory response. Secondary injury causes further tissue loss and dysfunction, and the immune response appears to be the key molecular mechanism affecting injured tissue regeneration and functional recovery from SCI. Immune response after SCI involves the activation of different immune cells and the production of immunity-associated chemicals. With the development of new biological technologies, such as transcriptomics, the heterogeneity of immune cells and chemicals can be classified with greater precision. In this review, we focus on the current understanding of the heterogeneity of these immune components and the roles they play in SCI, including reactive astrogliosis and glial scar formation, neutrophil migration, macrophage transformation, resident microglia activation and proliferation, and the humoral immunity mediated by T and B cells. We also summarize findings from clinical trials of immunomodulatory therapies for SCI and briefly review promising therapeutic drugs currently being researched.
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Affiliation(s)
- Huaguo Tang
- Department of Hand and Foot Surgery, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Yuanjie Gu
- Department of Hand and Foot Surgery, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Lei Jiang
- Department of Hand and Foot Surgery, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Gang Zheng
- Department of Neurosurgery, The Central Hospital Affiliated to Shaoxing University, Jiaxing, China
| | - Zhuoer Pan
- Department of Orthopedics, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Xiugui Jiang
- Department of Hand and Foot Surgery, Zhejiang Rongjun Hospital, Jiaxing, China,*Correspondence: Xiugui Jiang,
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8
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Hasan KMM, Haque MA. Autophagy and Its Lineage-Specific Roles in the Hematopoietic System. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:8257217. [PMID: 37180758 PMCID: PMC10171987 DOI: 10.1155/2023/8257217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 02/26/2023] [Accepted: 03/17/2023] [Indexed: 05/16/2023]
Abstract
Autophagy is a dynamic process that regulates the selective and nonselective degradation of cytoplasmic components, such as damaged organelles and protein aggregates inside lysosomes to maintain tissue homeostasis. Different types of autophagy including macroautophagy, microautophagy, and chaperon-mediated autophagy (CMA) have been implicated in a variety of pathological conditions, such as cancer, aging, neurodegeneration, and developmental disorders. Furthermore, the molecular mechanism and biological functions of autophagy have been extensively studied in vertebrate hematopoiesis and human blood malignancies. In recent years, the hematopoietic lineage-specific roles of different autophagy-related (ATG) genes have gained more attention. The evolution of gene-editing technology and the easy access nature of hematopoietic stem cells (HSCs), hematopoietic progenitors, and precursor cells have facilitated the autophagy research to better understand how ATG genes function in the hematopoietic system. Taking advantage of the gene-editing platform, this review has summarized the roles of different ATGs at the hematopoietic cell level, their dysregulation, and pathological consequences throughout hematopoiesis.
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Affiliation(s)
- Kazi Md Mahmudul Hasan
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
- Department of Biotechnology and Genetic Engineering, Islamic University, Kushtia 7003, Bangladesh
- Department of Neurology, David Geffen School of Medicine, The University of California, 710 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Md Anwarul Haque
- Department of Biotechnology and Genetic Engineering, Islamic University, Kushtia 7003, Bangladesh
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9
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Koenderman L, Tesselaar K, Vrisekoop N. Human neutrophil kinetics: a call to revisit old evidence. Trends Immunol 2022; 43:868-876. [PMID: 36243621 DOI: 10.1016/j.it.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 01/12/2023]
Abstract
The half-life of human neutrophils is still controversial, with estimates ranging from 7-9 h to 3.75 days. This debate should be settled to understand neutrophil production in the bone marrow (BM) and the potential and limitations of emergency neutropoiesis following infection or trauma. Furthermore, cellular lifespan greatly influences the potential effect(s) neutrophils have on the adaptive immune response. We posit that blood neutrophils are in exchange with different tissues, but particularly the BM, as it contains the largest pool of mature neutrophils. Furthermore, we propose that the oldest neutrophils are the first to die following a so-called conveyor belt model. These guiding principles shed new light on our interpretation of existing neutrophil lifespan data and offer recommendations for future research.
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Affiliation(s)
- Leo Koenderman
- Department of Respiratory Medicine, University Medical Center Utrecht, The Netherlands; Center for Translational Immunology, University Medical Center Utrecht, The Netherlands.
| | - Kiki Tesselaar
- Center for Translational Immunology, University Medical Center Utrecht, The Netherlands; Department of Immunology, University Medical Center Utrecht, The Netherlands
| | - Nienke Vrisekoop
- Department of Respiratory Medicine, University Medical Center Utrecht, The Netherlands; Center for Translational Immunology, University Medical Center Utrecht, The Netherlands
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10
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Kinkead LC, Krysa SJ, Allen LAH. Neutrophil Survival Signaling During Francisella tularensis Infection. Front Cell Infect Microbiol 2022; 12:889290. [PMID: 35873156 PMCID: PMC9299441 DOI: 10.3389/fcimb.2022.889290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/07/2022] [Indexed: 12/18/2022] Open
Abstract
Neutrophils are the most abundant and shortest-lived leukocytes in humans and tight regulation of neutrophil turnover via constitutive apoptosis is essential for control of infection and resolution of inflammation. Accordingly, aberrant neutrophil turnover is hallmark of many disease states. We have shown in previous work that the intracellular bacterial pathogen Francisella tularensis markedly prolongs human neutrophil lifespan. This is achieved, in part, by changes in neutrophil gene expression. Still unknown is the contribution of major neutrophil pro-survival signaling cascades to this process. The objective of this study was to interrogate the contributions of ERK and p38 MAP kinase, Class I phosphoinositide 3-kinases (PI3K), AKT, and NF-κB to neutrophil survival in our system. We demonstrate that both ERK2 and p38α were activated in F. tularensis-infected neutrophils, but only p38α MAPK was required for delayed apoptosis and the rate of cell death in the absence of infection was unchanged. Apoptosis of both infected and uninfected neutrophils was markedly accelerated by the pan-PI3K inhibitor LY2094002, but AKT phosphorylation was not induced, and neutrophil death was not enhanced by AKT inhibitors. In addition, isoform specific and selective inhibitors revealed a unique role for PI3Kα in neutrophil survival after infection, whereas only simultaneous inhibition of PI3Kα and PI3kδ accelerated death of the uninfected controls. Finally, we show that inhibition of NF-κB triggered rapid death of neutrophil after infection. Thus, we defined roles for p38α, PI3Kα and NF-κB delayed apoptosis of F. tularensis-infected cells and advanced understanding of Class IA PI3K isoform activity in human neutrophil survival.
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Affiliation(s)
- Lauren C. Kinkead
- Inflammation Program, University of Iowa, Iowa City, IA, United States,Department of Microbiology and Immunology, University of Iowa, Iowa City, IA, United States,Iowa City VA Health Care System, Iowa City, IA, United States
| | - Samantha J. Krysa
- Inflammation Program, University of Iowa, Iowa City, IA, United States,Iowa City VA Health Care System, Iowa City, IA, United States,Molecular Medicine Training Program, University of Iowa, Iowa City, IA, United States
| | - Lee-Ann H. Allen
- Inflammation Program, University of Iowa, Iowa City, IA, United States,Department of Microbiology and Immunology, University of Iowa, Iowa City, IA, United States,Iowa City VA Health Care System, Iowa City, IA, United States,Molecular Medicine Training Program, University of Iowa, Iowa City, IA, United States,Department of Medicine, Division of Infectious Diseases, University of Iowa, Iowa City, IA, United States,Harry S. Truman Memorial VA Hospital, Columbia, MO, United States,Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, United States,*Correspondence: Lee-Ann H. Allen,
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11
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Miralda I, Vashishta A, Rogers MN, Lamont RJ, Uriarte SM. The emerging oral pathogen, Filifactor alocis, extends the functional lifespan of human neutrophil. Mol Microbiol 2022; 117:1340-1351. [PMID: 35437843 PMCID: PMC9233153 DOI: 10.1111/mmi.14911] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 03/17/2022] [Accepted: 04/10/2022] [Indexed: 12/01/2022]
Abstract
Periodontitis is a chronic inflammatory infectious disease that affects the integrity of tooth‐supporting tissues and has adverse systemic consequences. Advances in sequencing technologies have uncovered organisms that are exclusively found in high numbers in periodontal lesions, such as the gram‐positive anaerobic rod, Filifactor alocis. F. alocis can manipulate neutrophil effector functions, which allows the organism to survive within these granulocytes. Several neutrophil functions have been tested in the context of F. alocis challenge, but the effect of the organism on neutrophil apoptosis is still unknown. RNA sequencing of human neutrophils challenged with F. alocis showed that apoptosis pathways were differentially regulated. Compared to media‐cultured controls, F. alocis‐challenged neutrophils maintain their nuclear morphology, do not stain for Annexin V or 7‐AAD, and have decreased DNA fragmentation. Inhibition of apoptosis by F. alocis involved reduced caspase‐3, −8, and − 9 activation and upregulation of important anti‐apoptotic proteins. Prolonged lifespan was dependent on contact through TLR2/6, and F. alocis‐challenged neutrophils retained their functional capacity to induce inflammation for longer timepoints. This is the first in‐depth characterization of neutrophil apoptotic programs in response to an oral pathogen and provides key information on how bacteria manipulate immune cell mechanisms to maintain a dysregulated inflammatory response.
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Affiliation(s)
- Irina Miralda
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA.,Present address: Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Aruna Vashishta
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - Max N Rogers
- School of Medicine, University of Louisville, Louisville, KY, USA
| | - Richard J Lamont
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - Silvia M Uriarte
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
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12
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Kraus RF, Gruber MA. Neutrophils-From Bone Marrow to First-Line Defense of the Innate Immune System. Front Immunol 2022; 12:767175. [PMID: 35003081 PMCID: PMC8732951 DOI: 10.3389/fimmu.2021.767175] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/03/2021] [Indexed: 12/16/2022] Open
Abstract
Neutrophils (polymorphonuclear cells; PMNs) form a first line of defense against pathogens and are therefore an important component of the innate immune response. As a result of poorly controlled activation, however, PMNs can also mediate tissue damage in numerous diseases, often by increasing tissue inflammation and injury. According to current knowledge, PMNs are not only part of the pathogenesis of infectious and autoimmune diseases but also of conditions with disturbed tissue homeostasis such as trauma and shock. Scientific advances in the past two decades have changed the role of neutrophils from that of solely immune defense cells to cells that are responsible for the general integrity of the body, even in the absence of pathogens. To better understand PMN function in the human organism, our review outlines the role of PMNs within the innate immune system. This review provides an overview of the migration of PMNs from the vascular compartment to the target tissue as well as their chemotactic processes and illuminates crucial neutrophil immune properties at the site of the lesion. The review is focused on the formation of chemotactic gradients in interaction with the extracellular matrix (ECM) and the influence of the ECM on PMN function. In addition, our review summarizes current knowledge about the phenomenon of bidirectional and reverse PMN migration, neutrophil microtubules, and the microtubule organizing center in PMN migration. As a conclusive feature, we review and discuss new findings about neutrophil behavior in cancer environment and tumor tissue.
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Affiliation(s)
- Richard Felix Kraus
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
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13
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Marković D, Maslovarić I, Djikić D, Čokić VP. Neutrophil Death in Myeloproliferative Neoplasms: Shedding More Light on Neutrophils as a Pathogenic Link to Chronic Inflammation. Int J Mol Sci 2022; 23:1490. [PMID: 35163413 PMCID: PMC8836089 DOI: 10.3390/ijms23031490] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/18/2022] [Accepted: 01/20/2022] [Indexed: 12/15/2022] Open
Abstract
Neutrophils are an essential component of the innate immune response, but their prolonged activation can lead to chronic inflammation. Consequently, neutrophil homeostasis is tightly regulated through balance between granulopoiesis and clearance of dying cells. The bone marrow is both a site of neutrophil production and the place they return to and die. Myeloproliferative neoplasms (MPN) are clonal hematopoietic disorders characterized by the mutations in three types of molecular markers, with emphasis on Janus kinase 2 gene mutation (JAK2V617F). The MPN bone marrow stem cell niche is a site of chronic inflammation, with commonly increased cells of myeloid lineage, including neutrophils. The MPN neutrophils are characterized by the upregulation of JAK target genes. Additionally, MPN neutrophils display malignant nature, they are in a state of activation, and with deregulated apoptotic machinery. In other words, neutrophils deserve to be placed in the midst of major events in MPN. Our crucial interest in this review is better understanding of how neutrophils die in MPN mirrored by defects in apoptosis and to what possible extent they can contribute to MPN pathophysiology. We tend to expect that reduced neutrophil apoptosis will establish a pathogenic link to chronic inflammation in MPN.
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Affiliation(s)
- Dragana Marković
- Group for Immunology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Dr Subotića 4, POB 39, 11129 Belgrade, Serbia;
| | - Irina Maslovarić
- Group for Immunology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Dr Subotića 4, POB 39, 11129 Belgrade, Serbia;
| | - Dragoslava Djikić
- Group for Molecular Oncology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Dr Subotića 4, POB 39, 11129 Belgrade, Serbia; (D.D.); (V.P.Č.)
| | - Vladan P. Čokić
- Group for Molecular Oncology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Dr Subotića 4, POB 39, 11129 Belgrade, Serbia; (D.D.); (V.P.Č.)
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14
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Li R, Wang Z, Huang J, He S, Peng Y, Wan Y, Ma Q. Neutrophils Culture in Collagen Gel System. Front Immunol 2022; 13:816037. [PMID: 35140721 PMCID: PMC8818728 DOI: 10.3389/fimmu.2022.816037] [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: 11/16/2021] [Accepted: 01/03/2022] [Indexed: 12/12/2022] Open
Abstract
Neutrophils (Neu) migrate rapidly to damaged tissue and play critical roles in host defense and tissue homeostasis, including the intestinal epithelia injuries and immune responses. Although their important roles in these diseases, they are challenging to study due to their short life span and the inability to cryopreserve or expand them in vitro. Moreover, the standard cell culturing on plastic plates (two-dimensional (2D) cultures) does not represent the actual microenvironment where cells reside in tissues. In this study, we developed a new three-dimensional (3D) culture system for human and mouse peripheral blood Neu, which is made of hydrogel. The Neu showed much better cell integrity and less cell debris in the 3D culture system compared to that in 2D culture system. Moreover, the 3D culture system was more suitable for the observation of neutrophil extracellular traps (NETs) stimulated by the classical stimulation phorbol ester (PMA), and other damage associated molecular patterns (DAMPs) such as Lipopolysaccharide (LPS)/ATP, interleukin-1 β (IL-1β) and tumor necrosis factor α (TNFα) than the 2D culture system. Moreover, NETs phenomenon in 3D culture system is similar to that in vivo. In addition, the 3D culture system was evaluated to co-culturing Neu and other parenchymal cells, such as colon mucosal epithelial cell lines. In conclusion, the 3D culture system could maintain better properties of Neu than that in 2D culture system and it may reduce the gap between in vitro an in vivo experimentations.
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Affiliation(s)
- Ru Li
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Ziqing Wang
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Junhao Huang
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Sixiao He
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Yanmei Peng
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yong Wan
- Research and Development Department, Guangzhou Darui Biotechnology Co., Ltd, Guangzhou, China
| | - Qiang Ma
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- *Correspondence: Qiang Ma,
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15
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Lange T, Luebber F, Grasshoff H, Besedovsky L. The contribution of sleep to the neuroendocrine regulation of rhythms in human leukocyte traffic. Semin Immunopathol 2022; 44:239-254. [PMID: 35041075 PMCID: PMC8901522 DOI: 10.1007/s00281-021-00904-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/03/2021] [Indexed: 12/12/2022]
Abstract
Twenty-four-hour rhythms in immune parameters and functions are robustly observed phenomena in biomedicine. Here, we summarize the important role of sleep and associated parameters on the neuroendocrine regulation of rhythmic immune cell traffic to different compartments, with a focus on human leukocyte subsets. Blood counts of "stress leukocytes" such as neutrophils, natural killer cells, and highly differentiated cytotoxic T cells present a rhythm with a daytime peak. It is mediated by morning increases in epinephrine, leading to a mobilization of these cells out of the marginal pool into the circulation following a fast, beta2-adrenoceptor-dependent inhibition of adhesive integrin signaling. In contrast, other subsets such as eosinophils and less differentiated T cells are redirected out of the circulation during daytime. This is mediated by stimulation of the glucocorticoid receptor following morning increases in cortisol, which promotes CXCR4-driven leukocyte traffic, presumably to the bone marrow. Hence, these cells show highest numbers in blood at night when cortisol levels are lowest. Sleep adds to these rhythms by actively suppressing epinephrine and cortisol levels. In addition, sleep increases levels of immunosupportive mediators, such as aldosterone and growth hormone, which are assumed to promote T-cell homing to lymph nodes, thus facilitating the initiation of adaptive immune responses during sleep. Taken together, sleep-wake behavior with its unique neuroendocrine changes regulates human leukocyte traffic with overall immunosupportive effects during nocturnal sleep. In contrast, integrin de-activation and redistribution of certain leukocytes to the bone marrow during daytime activity presumably serves immune regulation and homeostasis.
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Affiliation(s)
- Tanja Lange
- Department of Rheumatology and Clinical Immunology, University of Lübeck, Lübeck, Germany. .,Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany.
| | - Finn Luebber
- Department of Rheumatology and Clinical Immunology, University of Lübeck, Lübeck, Germany.,Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany.,Social Neuroscience Lab, University of Lübeck, Lübeck, Germany
| | - Hanna Grasshoff
- Department of Rheumatology and Clinical Immunology, University of Lübeck, Lübeck, Germany.,Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
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16
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Vicanolo T, Hidalgo A, Adrover JM. Measuring Circadian Neutrophil Infiltration in Tissues by Paired Whole-Mount Tissue Clearing and Flow Cytometry. Methods Mol Biol 2022; 2482:265-284. [PMID: 35610433 DOI: 10.1007/978-1-0716-2249-0_18] [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: 06/15/2023]
Abstract
Neutrophils infiltrate most tissues in the organism in the steady state, often following circadian patterns. Neutrophil infiltration is also key to immune defense under inflammatory conditions. In all cases, accurate measurements of the absolute number of infiltrated cells and of their localization are important to understand steady-state or inflammatory migration patterns and kinetics. Here we present a method to obtain accurate information on both neutrophil number and distribution that can be successfully applied to circadian studies of neutrophil (or any other cell of interest) migration in vivo. Moreover, this method can be also used to obtain information on activation states or effector functions, for example, by measurement of neutrophil extracellular trap formation in tissues.
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Affiliation(s)
- Tommaso Vicanolo
- Area of Cell and Developmental Biology, Fundación Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Andres Hidalgo
- Area of Cell and Developmental Biology, Fundación Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Jose M Adrover
- Area of Cell and Developmental Biology, Fundación Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA.
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17
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Malengier-Devlies B, Metzemaekers M, Wouters C, Proost P, Matthys P. Neutrophil Homeostasis and Emergency Granulopoiesis: The Example of Systemic Juvenile Idiopathic Arthritis. Front Immunol 2021; 12:766620. [PMID: 34966386 PMCID: PMC8710701 DOI: 10.3389/fimmu.2021.766620] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/23/2021] [Indexed: 12/21/2022] Open
Abstract
Neutrophils are key pathogen exterminators of the innate immune system endowed with oxidative and non-oxidative defense mechanisms. More recently, a more complex role for neutrophils as decision shaping cells that instruct other leukocytes to fine-tune innate and adaptive immune responses has come into view. Under homeostatic conditions, neutrophils are short-lived cells that are continuously released from the bone marrow. Their development starts with undifferentiated hematopoietic stem cells that pass through different immature subtypes to eventually become fully equipped, mature neutrophils capable of launching fast and robust immune responses. During severe (systemic) inflammation, there is an increased need for neutrophils. The hematopoietic system rapidly adapts to this increased demand by switching from steady-state blood cell production to emergency granulopoiesis. During emergency granulopoiesis, the de novo production of neutrophils by the bone marrow and at extramedullary sites is augmented, while additional mature neutrophils are rapidly released from the marginated pools. Although neutrophils are indispensable for host protection against microorganisms, excessive activation causes tissue damage in neutrophil-rich diseases. Therefore, tight regulation of neutrophil homeostasis is imperative. In this review, we discuss the kinetics of neutrophil ontogenesis in homeostatic conditions and during emergency myelopoiesis and provide an overview of the different molecular players involved in this regulation. We substantiate this review with the example of an autoinflammatory disease, i.e. systemic juvenile idiopathic arthritis.
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Affiliation(s)
- Bert Malengier-Devlies
- Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Mieke Metzemaekers
- Department of Microbiology, Immunology and Transplantation, Laboratory of Molecular Immunology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Carine Wouters
- Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium.,Division of Pediatric Rheumatology, University Hospitals Leuven, Leuven, Belgium.,European Reference Network for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA) at University Hospital Leuven, Leuven, Belgium
| | - Paul Proost
- Department of Microbiology, Immunology and Transplantation, Laboratory of Molecular Immunology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Patrick Matthys
- Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
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18
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Chen H, Wu X, Xu C, Lin J, Liu Z. Dichotomous roles of neutrophils in modulating pathogenic and repair processes of inflammatory bowel diseases. PRECISION CLINICAL MEDICINE 2021; 4:246-257. [PMID: 35692862 PMCID: PMC8982532 DOI: 10.1093/pcmedi/pbab025] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 02/06/2023] Open
Abstract
Neutrophils are considered as complex innate immune cells and play a critical role in maintaining intestinal mucosal homeostasis. They exert robust pro-inflammatory effects and recruit other immune cells in the acute phase of pathogen infection and intestinal inflammation, but paradoxically, they also limit exogenous microbial invasion and facilitate mucosal restoration. Hyperactivation or dysfunction of neutrophils results in abnormal immune responses, leading to multiple autoimmune and inflammatory diseases including systemic lupus erythematosus, rheumatoid arthritis, and inflammatory bowel diseases (IBD). As a refractory intestinal inflammatory disease, the pathogenesis and progression of IBD are associated with complicated immune response processes in which neutrophils are profoundly involved. However, the consensus on potential roles of neutrophils in modulating pathogenic and repair processes of IBD remains not fully understood. Accumulated infiltrating neutrophils cross the epithelial barrier and contribute to microbial dysbiosis, aggravated intestinal architectural damage, compromised resolution of intestinal inflammation and increased risk of thrombosis during IBD. Paradoxically, activated neutrophils are also associated with effective elimination of invaded microbiota, promoted angiogenesis and tissue restoration of gut mucosa in IBD. Here, we discuss the beneficial and detrimental roles of neutrophils in the onset and resolution of intestinal mucosal inflammation, hoping to provide a precise overview of neutrophil functions in the pathogenesis of IBD.
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Affiliation(s)
- Huimin Chen
- Center for Inflammatory Bowel Disease Research, the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Xiaohan Wu
- Center for Inflammatory Bowel Disease Research, the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Chunjin Xu
- Department of Gastroenterology, the First People's Hospital of Shangqiu City Affiliated to Xinxiang Medical University, Shangqiu 476100, China
| | - Jian Lin
- Department of Gastroenterology, Affiliated Hospital of Putian University, Putian 351106, China
| | - Zhanju Liu
- Center for Inflammatory Bowel Disease Research, the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
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19
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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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20
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BCL-XL antagonism selectively reduces neutrophil life span within inflamed tissues without causing neutropenia. Blood Adv 2021; 5:2550-2562. [PMID: 34100903 DOI: 10.1182/bloodadvances.2020004139] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/09/2021] [Indexed: 12/17/2022] Open
Abstract
Neutrophils help to clear pathogens and cellular debris, but can also cause collateral damage within inflamed tissues. Prolonged neutrophil residency within an inflammatory niche can exacerbate tissue pathology. Using both genetic and pharmacological approaches, we show that BCL-XL is required for the persistence of neutrophils within inflammatory sites in mice. We demonstrate that a selective BCL-XL inhibitor (A-1331852) has therapeutic potential by causing apoptosis in inflammatory human neutrophils ex vivo. Moreover, in murine models of acute and chronic inflammatory disease, it reduced inflammatory neutrophil numbers and ameliorated tissue pathology. In contrast, there was minimal effect on circulating neutrophils. Thus, we show a differential survival requirement in activated neutrophils for BCL-XL and reveal a new therapeutic approach to neutrophil-mediated diseases.
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21
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Neutrophils in Tumorigenesis: Missing Targets for Successful Next Generation Cancer Therapies? Int J Mol Sci 2021; 22:ijms22136744. [PMID: 34201758 PMCID: PMC8268516 DOI: 10.3390/ijms22136744] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/15/2021] [Accepted: 06/16/2021] [Indexed: 12/14/2022] Open
Abstract
Neutrophils—once considered as simple killers of pathogens and unexciting for cancer research—are now acknowledged for their role in the process of tumorigenesis. Neutrophils are recruited to the tumor microenvironment where they turn into tumor-associated neutrophils (TANs), and are able to initiate and promote tumor progression and metastasis. Conversely, anti-tumorigenic properties of neutrophils have been documented, highlighting the versatile nature and high pleiotropic plasticity of these polymorphonuclear leukocytes (PMN-L). Here, we dissect the ambivalent roles of TANs in cancer and focus on selected functional aspects that could be therapeutic targets. Indeed, the critical point of targeting TAN functions lies in the fact that an immunosuppressive state could be induced, resulting in unwanted side effects. A deeper knowledge of the mechanisms linked to diverse TAN functions in different cancer types is necessary to define appropriate therapeutic strategies that are able to induce and maintain an anti-tumor microenvironment.
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22
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Injarabian L, Skerniskyte J, Giai Gianetto Q, Witko-Sarsat V, Marteyn BS. Reducing neutrophil exposure to oxygen allows their basal state maintenance. Immunol Cell Biol 2021; 99:782-789. [PMID: 33811670 PMCID: PMC8453921 DOI: 10.1111/imcb.12458] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 12/29/2022]
Abstract
Neutrophils are the most abundant circulating white blood cells and are the central players of the innate immune response. During their lifecycle, neutrophils mainly evolve under low oxygen conditions (0.1–4% O2), to which they are well adapted. Neutrophils are atypical cells since they are highly glycolytic and susceptible to oxygen exposure, which induces their activation and death through mechanisms that remain currently elusive. Nevertheless, nearly all studies conducted on neutrophils are carried out under atmospheric oxygen (21%), corresponding to hyperoxia. Here, we investigated the impact of hyperoxia during neutrophil purification and culture on neutrophil viability, activation and cytosolic protein content. We demonstrate that neutrophil hyper‐activation (CD62L shedding) is induced during culture under hyperoxic conditions (24 h), compared with neutrophils cultured under anoxic conditions. Spontaneous neutrophil extracellular trap (NET) formation is observed when neutrophils face hyperoxia during purification or culture. In addition, we show that maintaining neutrophils in autologous plasma is the preferred strategy to maintain their basal state. Our results show that manipulating neutrophils under hyperoxic conditions leads to the loss of 57 cytosolic proteins during purification, while it does not lead to an immediate impact on neutrophil activation (CD11bhigh, CD54high, CD62Lneg) or viability (DAPI+). We identified two clusters of proteins belonging to cholesterol metabolism and to the complement and coagulation cascade pathways, which are highly susceptible to neutrophil oxygen exposure during neutrophil purification. In conclusion, protecting neutrophil from oxygen during their purification and culture is recommended to avoid activation and to prevent the alteration of cytosolic protein composition.
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Affiliation(s)
- Louise Injarabian
- CNRS, IBGC, UMR 5095, Université de Bordeaux, Bordeaux, France.,CNRS, UPR 9002, F-67000, Université de Strasbourg, Institut de Biologie Moléculaire et Cellulaire, Architecture et Réactivité de l'ARN, Strasbourg, France
| | - Jurate Skerniskyte
- CNRS, UPR 9002, F-67000, Université de Strasbourg, Institut de Biologie Moléculaire et Cellulaire, Architecture et Réactivité de l'ARN, Strasbourg, France
| | - Quentin Giai Gianetto
- Bioinformatics and Biostatistics HUB, Computational Biology Department, USR CNRS, Institut Pasteur, Paris, France.,Proteomics Platform, Mass Spectrometry for Biology Unit, USR CNRS, Institut Pasteur, Paris, France
| | | | - Benoit S Marteyn
- CNRS, UPR 9002, F-67000, Université de Strasbourg, Institut de Biologie Moléculaire et Cellulaire, Architecture et Réactivité de l'ARN, Strasbourg, France.,INSERM U1225, Unité de Pathogenèse des Infections Vasculaires, Institut Pasteur, Paris Cedex 15, France.,University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
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23
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Gierlikowska B, Stachura A, Gierlikowski W, Demkow U. Phagocytosis, Degranulation and Extracellular Traps Release by Neutrophils-The Current Knowledge, Pharmacological Modulation and Future Prospects. Front Pharmacol 2021; 12:666732. [PMID: 34017259 PMCID: PMC8129565 DOI: 10.3389/fphar.2021.666732] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/19/2021] [Indexed: 12/15/2022] Open
Abstract
Neutrophils are crucial elements of innate immune system, which assure host defense via a range of effector functions, such as phagocytosis, degranulation, and NET formation. The latest literature clearly indicates that modulation of effector functions of neutrophils may affect the treatment efficacy. Pharmacological modulation may affect molecular mechanisms activating or suppressing phagocytosis, degranulation or NET formation. In this review, we describe the role of neutrophils in physiology and in the course of bacterial and viral infections, illustrating the versatility and plasticity of those cells. This review also focus on the action of plant extracts, plant-derived compounds and synthetic drugs on effector functions of neutrophils. These recent advances in the knowledge can help to devise novel therapeutic approaches via pharmacological modulation of the described processes.
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Affiliation(s)
- Barbara Gierlikowska
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
| | - Albert Stachura
- Department of Methodology, Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland.,Doctoral School, Medical University of Warsaw, Warsaw, Poland
| | - Wojciech Gierlikowski
- Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Urszula Demkow
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
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24
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Jougleux JL, Léger JL, Djeungoue-Petga MA, Roy P, Soucy MFN, Veilleux V, Hébert MPA, Hebert-Chatelain E, Boudreau LH. Evaluating the mitochondrial activity and inflammatory state of dimethyl sulfoxide differentiated PLB-985 cells. Mol Immunol 2021; 135:1-11. [PMID: 33838400 DOI: 10.1016/j.molimm.2021.03.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 03/14/2021] [Accepted: 03/31/2021] [Indexed: 12/19/2022]
Abstract
Neutrophils play a key role in the innate immunity with their ability to generate and release inflammatory mediators that promote the inflammatory response and consequently restore the hemostasis. As active participants in several steps of the normal inflammatory response, neutrophils are also involved in chronic inflammatory diseases such as asthma, atherosclerosis, and arthritis. Given their dual role in the modulation of inflammation, regulating the inflammatory response of neutrophils has been suggested as an important therapeutic approach by numerous researchers. The neutrophils have a relatively short lifespan, which can be problematic for some in vitro experiments. To address this issue, researchers have used the human monomyelocyte cell line PLB-985 as an in vitro model for exploratory experiments addressing neutrophil-related physiological functions. PLB-985 cells can be differentiated into a neutrophil-like phenotype upon exposure to several agonists, including dimethyl sulfoxide (DMSO). Whether this differentiation of PLB-985 affects important features related to the neutrophil's normal functions (i.e., mitochondrial activity, eicosanoid production) remains elusive, and characterizing these changes will be the focal point of this study. Our results indicate that the differentiation affected the proliferation of PLB-985 cells, without inducing apoptosis. A significant decrease in mitochondrial respiration was observed in differentiated PLB-985 cells. However, the overall mitochondria content was not affected. Immunoblotting with mitochondrial antibodies revealed a strong modulation of the succinate dehydrogenase A, superoxide dismutase 2, ubiquinol-cytochrome c reductase core protein 2 and ATP synthase subunit α in differentiated PLB-985 cells. Finally, eicosanoids (leukotriene B4, 12-hydroxyheptadecatrienoic and 15-hydroxyeicosatetraenoic acids) production was significantly increased in differentiated cells. In summary, our data demonstrate that the differentiation process of PLB-985 cells does not impact their viability despite a reduced respiratory state of the cells. This process is also accompanied by modulation of the inflammatory state of the cell. Of importance, our data suggest that PLB-985 cells could be suitable in vitro candidates to study mitochondrial-related dysfunctions in inflammatory diseases.
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Affiliation(s)
- Jean-Luc Jougleux
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada; New Brunswick Center for Precision Medicine, Moncton, NB, Canada
| | - Jacob L Léger
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada; New Brunswick Center for Precision Medicine, Moncton, NB, Canada
| | - Marie-Ange Djeungoue-Petga
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Department of Biology, Université de Moncton, Moncton, NB, Canada; New Brunswick Center for Precision Medicine, Moncton, NB, Canada
| | - Patrick Roy
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada; New Brunswick Center for Precision Medicine, Moncton, NB, Canada
| | - Marie-France N Soucy
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada; New Brunswick Center for Precision Medicine, Moncton, NB, Canada
| | - Vanessa Veilleux
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada; New Brunswick Center for Precision Medicine, Moncton, NB, Canada
| | - Mathieu P A Hébert
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada; New Brunswick Center for Precision Medicine, Moncton, NB, Canada
| | - Etienne Hebert-Chatelain
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Department of Biology, Université de Moncton, Moncton, NB, Canada; New Brunswick Center for Precision Medicine, Moncton, NB, Canada
| | - Luc H Boudreau
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada; New Brunswick Center for Precision Medicine, Moncton, NB, Canada.
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25
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Patel AA, Ginhoux F, Yona S. Monocytes, macrophages, dendritic cells and neutrophils: an update on lifespan kinetics in health and disease. Immunology 2021; 163:250-261. [PMID: 33555612 DOI: 10.1111/imm.13320] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/13/2021] [Accepted: 01/17/2021] [Indexed: 12/16/2022] Open
Abstract
Phagocytes form a family of immune cells that play a crucial role in tissue maintenance and help orchestrate the immune response. This family of cells can be separated by their nuclear morphology into mononuclear and polymorphonuclear phagocytes. The generation of these cells in the bone marrow, to the blood and finally into tissues is a tightly regulated process. Ensuring the adequate production of these cells and their timely removal is key for both the initiation and resolution of inflammation. Insight into the kinetic profiles of innate myeloid cells during steady state and pathology will permit the rational development of therapies to boost the production of these cells in times of need or reduce them when detrimental.
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Affiliation(s)
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore.,Shanghai Institute of Immunology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Translational Immunology Institute, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore
| | - Simon Yona
- Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
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26
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Rungelrath V, DeLeo FR. Staphylococcus aureus, Antibiotic Resistance, and the Interaction with Human Neutrophils. Antioxid Redox Signal 2021; 34:452-470. [PMID: 32460514 PMCID: PMC8020508 DOI: 10.1089/ars.2020.8127] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Significance:Staphylococcus aureus is among the leading causes of bacterial infections worldwide. The high burden of S. aureus among human and animal hosts, which includes asymptomatic carriage and infection, is coupled with a notorious ability of the microbe to become resistant to antibiotics. Notably, S. aureus has the ability to produce molecules that promote evasion of host defense, including the ability to avoid killing by neutrophils. Recent Advances: Significant progress has been made to better understand S. aureus-host interactions. These discoveries include elucidation of the role played by numerous S. aureus virulence molecules during infection. Based on putative functions, a number of these virulence molecules, including S. aureus alpha-hemolysin and protein A, have been identified as therapeutic targets. Although it has not been possible to develop a vaccine that can prevent S. aureus infections, monoclonal antibodies specific for S. aureus virulence molecules have the potential to moderate the severity of disease. Critical Issues: Therapeutic options for treatment of methicillin-resistant S. aureus (MRSA) are limited, and the microbe typically develops resistance to new antibiotics. New prophylactics and/or therapeutics are needed. Future Directions: Research that promotes an enhanced understanding of S. aureus-host interaction is an important step toward developing new therapeutic approaches directed to moderate disease severity and facilitate treatment of infection. This research effort includes studies that enhance our view of the interaction of S. aureus with human neutrophils. Antioxid. Redox Signal. 34, 452-470.
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Affiliation(s)
- Viktoria Rungelrath
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
| | - Frank R DeLeo
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
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27
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Bonetto RM, Castel P, Robert SP, Tassistro VM, Claeys-Bruno M, Sergent M, Delecourt CA, Cowen D, Carcopino X, Orsière TG. Evaluation of PIG-A-mutated granulocytes and ex-vivo binucleated micronucleated lymphocytes frequencies after breast cancer radiotherapy in humans. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2021; 62:18-28. [PMID: 33169419 DOI: 10.1002/em.22413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 10/30/2020] [Accepted: 11/06/2020] [Indexed: 06/11/2023]
Abstract
Although the PIG-A gene mutation frequency (MF) is considered a good proxy to evaluate the somatic MF in animals, evidence remains scarce in humans. In this study, a granulocyte PIG-A-mutant assay was evaluated in patients undergoing radiation therapy (RT) for breast cancer. Breast cancer patients undergoing adjuvant RT were prospectively enrolled. RT involved the whole breast, with (WBNRT) or without (WBRT) nodal area irradiation. Blood samples were obtained from participants before (T0) RT, and T1, T2, and T3 samples were collected 3 weeks after the initiation of RT, at the end of RT, and at least 10 weeks after RT discontinuation, respectively. The MF was assessed using a flow cytometry protocol identifying PIG-A-mutant granulocytes. Cytokinesis-blocked micronucleated lymphocyte (CBML) frequencies were also evaluated. Thirty patients were included, and five of them had received chemotherapy prior to RT. The mean (±SD) PIG-A MFs were 7.7 (±12.1) per million at T0, 5.2 (±8.6) at T1, 6.4 (±8.0) at T2 and 3.8 (±36.0) at T3. No statistically significant increases were observed between the PIG-A MF at T0 and the MFs at other times. RT significantly increased the CBML frequencies: 7.9 ‰ (±3.1‰) versus 33.6‰ (±17.2‰) (p < .0001). By multivariate analysis, the CBML frequency was correlated with age at RT initiation (p = .043) and irradiation volume at RT discontinuation (p = .0001) but not with chemotherapy. RT for breast cancer therapy failed to induce an increase in the PIG-A MF. The PIG-A assay in humans needs further evaluation, in various genotoxic exposures and including various circulating human cells.
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Affiliation(s)
- Rémi M Bonetto
- Aix Marseille University, APHM, CHU TIMONE, Service de Radiothérapie-Oncologie, Marseille, France
| | - Pierre Castel
- Aix Marseille University, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | - Stéphane P Robert
- Aix Marseille University, INSERM, INRA, C2VN, AMUTICYT Core Facility, Faculté de Pharmacie, Marseille, France
| | - Virginie M Tassistro
- Aix Marseille University, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | - Magalie Claeys-Bruno
- Aix Marseille University, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | - Michelle Sergent
- Aix Marseille University, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | - Camille A Delecourt
- Aix Marseille University, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | - Didier Cowen
- Aix Marseille University, APHM, CHU TIMONE, Service de Radiothérapie-Oncologie, Marseille, France
| | - Xavier Carcopino
- Aix Marseille University, Avignon Université, CNRS, IRD, IMBE, Marseille, France
- Aix Marseille University, APHM, CHU NORD, Service de Gynécologie-Obstétrique, Marseille, France
| | - Thierry G Orsière
- Aix Marseille University, Avignon Université, CNRS, IRD, IMBE, Marseille, France
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28
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Pinheiro D, Mawhin MA, Prendecki M, Woollard KJ. In-silico analysis of myeloid cells across the animal kingdom reveals neutrophil evolution by colony-stimulating factors. eLife 2020; 9:60214. [PMID: 33236983 PMCID: PMC7717901 DOI: 10.7554/elife.60214] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 11/24/2020] [Indexed: 12/12/2022] Open
Abstract
Neutrophils constitute the largest population of phagocytic granulocytes in the blood of mammals. The development and function of neutrophils and monocytes is primarily governed by the granulocyte colony-stimulating factor receptor family (CSF3R/CSF3) and macrophage colony-stimulating factor receptor family (CSF1R/IL34/CSF1) respectively. Using various techniques this study considered how the emergence of receptor:ligand pairings shaped the distribution of blood myeloid cell populations. Comparative gene analysis supported the ancestral pairings of CSF1R/IL34 and CSF3R/CSF3, and the emergence of CSF1 later in lineages after the advent of Jawed/Jawless fish. Further analysis suggested that the emergence of CSF3 lead to reorganisation of granulocyte distribution between amphibian and early reptiles. However, the advent of endothermy likely contributed to the dominance of the neutrophil/heterophil in modern-day mammals and birds. In summary, we show that the emergence of CSF3R/CSF3 was a key factor in the subsequent evolution of the modern-day mammalian neutrophil.
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Affiliation(s)
- Damilola Pinheiro
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
| | - Marie-Anne Mawhin
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
| | - Maria Prendecki
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
| | - Kevin J Woollard
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
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29
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Spijkerman R, Hesselink L, Bertinetto C, Bongers CC, Hietbrink F, Vrisekoop N, Leenen LP, Hopman MT, Jansen JJ, Koenderman L. Analysis of human neutrophil phenotypes as biomarker to monitor exercise-induced immune changes. J Leukoc Biol 2020; 109:833-842. [PMID: 32893357 PMCID: PMC8048637 DOI: 10.1002/jlb.5a0820-436r] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/14/2020] [Accepted: 08/22/2020] [Indexed: 12/15/2022] Open
Abstract
The amplitude of the innate immune response reflects the degree of physiological stress imposed by exercise load. An optimal balance of exercise intensity and duration is essential for a balanced immune system and reduces the risk of dysfunction of the immune system. Therefore, it is hypothesized that neutrophils, as key players in the innate immune system, can be used as biomarker in detecting overtraining. The aim was to monitor the state of the innate immune system by phenotyping neutrophils during consecutive bouts of prolonged exercise. Study subjects were recruited from a cohort of walkers participating in a walking event on 3 consecutive days. Participants with immune deficiencies were excluded. Questionnaires to determine the physiological status of the participants were completed. Analysis of neutrophil receptor expression was done by a point-of-care fully automated flow cytometer. A total of 45 participants were recruited, of whom 39 participants were included for data analysis. Study participants had a median age of 64 (58-70) years. The absolute numbers CD16dim /CD62Lbright and CD16bright /CD62Ldim neutrophils were increased after the first 2 days of exercise followed by an adaptation/normalization after the third day. Participants with activated neutrophils (high CD11b expression) had an impaired physical feeling indicated by the participant on a lower visual analog scale compared to participants who did not have activated neutrophils (P = 0.017, P = 0.022). Consecutive days of prolonged exercise results in an initial systemic innate immune response, followed by normalization/adaptation. Increased neutrophil activation was associated with impaired physical feeling measured by a validated VAS score indicated by the participant. Fully automated point-of-care flow cytometry analysis of neutrophil phenotypes in a field laboratory might be a useful tool to monitor relevant differences in the systemic innate immune response in response to exercise.
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Affiliation(s)
- Roy Spijkerman
- Department of Trauma Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.,Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Lillian Hesselink
- Department of Trauma Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.,Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, The Netherlands
| | - Carlo Bertinetto
- Institute for Molecules and Materials (Analytical Chemistry), Radboud University, Nijmegen, The Netherlands
| | - Coen Cwg Bongers
- Department of Physiology Radboud Institute for Health Sciences (RIHS), Radboud university medical center, Nijmegen, The Netherlands
| | - Falco Hietbrink
- Department of Trauma Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Nienke Vrisekoop
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Luke Ph Leenen
- Department of Trauma Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Maria Te Hopman
- Department of Physiology Radboud Institute for Health Sciences (RIHS), Radboud university medical center, Nijmegen, The Netherlands
| | - Jeroen J Jansen
- Institute for Molecules and Materials (Analytical Chemistry), Radboud University, Nijmegen, The Netherlands
| | - Leo Koenderman
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
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30
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Salafia CM, Misra DP. Histopathology of the fetal inflammatory response to intra-amniotic pathogens. Semin Fetal Neonatal Med 2020; 25:101128. [PMID: 32928678 DOI: 10.1016/j.siny.2020.101128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Obstetric endorsement of the utility of placental histologic examination remains infrequent, especially from obstetricians who do not have a placental pathologist as part of their own local clinical care team. Placental pathologic examinations are viewed as useless if they do not provide answers to urgent clinical questions. Increasingly, however, it is appreciated that while placental analysis should be considered with regard to its longer term value; results can assess lifelong risks of a wide range of diseases that have been tied to prenatal exposures (e.g., [1]), including distinguishing sex-specific differences in those risks. (e.g., [2]) This review will focus solely on acute fetal (?) inflammation, more specifically, the fetal neutrophil responses in umbilical cord, chorionic plate vessels and to some degree, the fetal system as a whole. This histologic fetal inflammatory response is often the most readily accessible aspect of "FIR" piece of FIRS (the fetal inflammatory response syndrome). Some researchers have defined FIRS by a combination of both cytokine (especially IL-6) levels and the histopathologic FIR (Musilova et al., 2018) [3]. As we and others have noted, many histology based FIR cases, even those associated with neurodevelopmental outcomes such as cerebral palsy, are clinically silent.(e.g., [4]) Current clinical diagnostic criteria may have high specificity as they are very good at identifying non-FIR cases. However, that high specificity is coupled with very low specificity, identifying only 10% of FIR (Doty et al., 2018 Jul) [5]. Our aim is to provide a conceptual framework for the readers of the journal to better understand how to answer the following questions: What is a neutrophil and how is it important in FIR? What is the differential diagnosis for histologic FIR? How long has there been FIR? What secondary processes may have been recruited (and when) to contribute to the final pathology and pathophysiology of the given pregnancy?
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Affiliation(s)
- Carolyn M Salafia
- Placental Analytics LLC, New Rochelle, New York, USA; Institute for Basic Research, Staten Island, New York, USA; New York Presbyterian- Brooklyn Methodist Hospital, Brooklyn, New York, USA; Queens Hospital Center, Queens, New York, USA.
| | - Dawn P Misra
- Department of Epidemiology and Biostatistics, MSU College of Human Medicine, 909 Wilson Road Room B645, East Lansing, MI, 48824, USA.
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31
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Combes F, Meyer E, Sanders NN. Immune cells as tumor drug delivery vehicles. J Control Release 2020; 327:70-87. [PMID: 32735878 DOI: 10.1016/j.jconrel.2020.07.043] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 12/21/2022]
Abstract
This review article describes the use of immune cells as potential candidates to deliver anti-cancer drugs deep within the tumor microenvironment. First, the rationale of using drug carriers to target tumors and potentially decrease drug-related side effects is discussed. We further explain some of the current limitations when using nanoparticles for this purpose. Next, a comprehensive step-by-step description of the migration cascade of immune cells is provided as well as arguments on why immune cells can be used to address some of the limitations associated with nanoparticle-mediated drug delivery. We then describe the benefits and drawbacks of using red blood cells, platelets, granulocytes, monocytes, macrophages, myeloid-derived suppressor cells, T cells and NK cells for tumor-targeted drug delivery. An additional section discusses the versatility of nanoparticles to load anti-cancer drugs into immune cells. Lastly, we propose increasing the circulatory half-life and development of conditional release strategies as the two main future pillars to improve the efficacy of immune cell-mediated drug delivery to tumors.
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Affiliation(s)
- Francis Combes
- Laboratory of Gene Therapy, Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Heidestraat 19, 9820 Merelbeke, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Evelyne Meyer
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Niek N Sanders
- Laboratory of Gene Therapy, Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Heidestraat 19, 9820 Merelbeke, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium.
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32
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Kovalenko P, Paccaly A, Boyapati A, Xu C, St John G, Nivens MC, Davis JD, Rippley R, DiCioccio AT. Population Pharmacodynamic Model of Neutrophil Margination and Tolerance to Describe Effect of Sarilumab on Absolute Neutrophil Count in Patients with Rheumatoid Arthritis. CPT-PHARMACOMETRICS & SYSTEMS PHARMACOLOGY 2020; 9:405-416. [PMID: 32453485 PMCID: PMC7376291 DOI: 10.1002/psp4.12534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 05/14/2020] [Indexed: 12/20/2022]
Abstract
Evidence suggests that effects of interleukin‐6 pathway inhibitors sarilumab, tocilizumab, and sirukumab on absolute neutrophil count (ANC) are due to margination of circulating neutrophils into rapidly mobilizable noncirculating pools. We developed a population pharmacodynamic model using compartments for neutrophil margination and ANC‐specific tolerance to describe rapid, transient ANC changes in blood following administration of subcutaneous sarilumab and intravenous/subcutaneous tocilizumab based on data from 322 patients with rheumatoid arthritis in two single‐dose (NCT02097524 and NCT02404558) and one multiple‐dose (NCT01768572) trials. The model incorporated a tolerance compartment to account for ANC nadir and beginning of recovery before maximal drug concentration after subcutaneous dosing, and absence of a nadir plateau when the ANC response is saturated after subcutaneous or intravenous dosing. The model effectively describes the ANC changes and supports neutrophil margination and tolerance as an explanation for the absence of increased infection risk associated with low ANC due to interleukin‐6 pathway inhibitor treatment.
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Affiliation(s)
| | - Anne Paccaly
- Regeneron Pharmaceuticals, Inc., Tarrytown, New York, USA
| | - Anita Boyapati
- Regeneron Pharmaceuticals, Inc., Tarrytown, New York, USA
| | | | | | | | - John D Davis
- Regeneron Pharmaceuticals, Inc., Tarrytown, New York, USA
| | - Ronda Rippley
- Regeneron Pharmaceuticals, Inc., Tarrytown, New York, USA
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33
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Chen W, Boras B, Sung T, Yu Y, Zheng J, Wang D, Hu W, Spilker ME, D'Argenio DZ. A physiological model of granulopoiesis to predict clinical drug induced neutropenia from in vitro bone marrow studies: with application to a cell cycle inhibitor. J Pharmacokinet Pharmacodyn 2020; 47:163-182. [PMID: 32162138 DOI: 10.1007/s10928-020-09680-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 02/28/2020] [Indexed: 01/15/2023]
Abstract
Neutropenia is one of the most common dose-limiting toxocities associated with anticancer drug therapy. The ability to predict the probability and severity of neutropenia based on in vitro studies of drugs in early drug development will aid in advancing safe and efficacious compounds to human testing. Toward this end, a physiological model of granulopoiesis and its regulation is presented that includes the bone marrow progenitor cell cycle, allowing for a mechanistic representation of the action of relevant anticancer drugs based on in vitro studies. Model development used data from previously reported tracer kinetic studies of granulocyte disposition in healthy humans to characterize the dynamics of neutrophil margination in the presence of endogenous granulocyte-colony stimulating factor (G-CSF). In addition, previously published data from healthy volunteers following pegfilgrastim and filgrastim were used to quantify the regulatory effects of support G-CSF therapies on granulopoiesis. The model was evaluated for the cell cycle inhibitor palbociclib, using an in vitro system of human bone marrow mononuclear cells to quantify the action of palbociclib on proliferating progenitor cells, including its inhibitory effect on G1 to S phase transition. The in vitro results were incorporated into the physiological model of granulopoiesis and used to predict the time course of absolute neutrophil count (ANC) and the incidence of neutropenia observed in three previously reported clinical trials of palbociclib. The model was able to predict grade 3 and 4 neutropenia due to palbociclib treatment with 86% accuracy based on in vitro data.
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Affiliation(s)
- Wenbo Chen
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Britton Boras
- Pfizer Worldwide Research, Development and Medicine, San Diego, CA, USA
| | - Tae Sung
- Pfizer Worldwide Research, Development and Medicine, San Diego, CA, USA
| | - Yanke Yu
- Pfizer Global Product Development, San Diego, CA, USA
| | - Jenny Zheng
- Pfizer Global Product Development, Collegeville, PA, USA
| | - Diane Wang
- Pfizer Global Product Development, San Diego, CA, USA
| | - Wenyue Hu
- Pfizer Worldwide Research, Development and Medicine, San Diego, CA, USA
| | - Mary E Spilker
- Pfizer Worldwide Research, Development and Medicine, San Diego, CA, USA
| | - David Z D'Argenio
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA.
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34
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Koschade SE, Brandts CH. Selective Autophagy in Normal and Malignant Hematopoiesis. J Mol Biol 2020; 432:261-282. [DOI: 10.1016/j.jmb.2019.06.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 06/18/2019] [Accepted: 06/18/2019] [Indexed: 12/16/2022]
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35
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Rossi B, Constantin G, Zenaro E. The emerging role of neutrophils in neurodegeneration. Immunobiology 2020; 225:151865. [DOI: 10.1016/j.imbio.2019.10.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 10/30/2019] [Indexed: 12/11/2022]
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36
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Abstract
Neutrophils, also known as polymorphonuclear neutrophils (PMNs), have long been considered as the short-lived, nonspecific white cells that form pus-and also happen to kill invading microbes. Indeed, neutrophils were often neglected (and largely not considered) as immune cells. This historic view of neutrophils has changed considerably over the past several decades, and we now know that in addition to playing the predominant role in the clearance of bacteria and fungi, they have a major role in shaping the host response to infection and immune system homeostasis. The change in our view of the role of neutrophils in the immune system has been due in large part to the study of these cells in vitro. Such work has been made possible by new and/or improved methods and approaches used to investigate neutrophils. These methods are the focus of this volume.
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Affiliation(s)
- Harry L Malech
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Frank R DeLeo
- Laboratory of Bacteriology, Rocky Mountain Laboratories, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Mark T Quinn
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, USA.
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Neutrophil activation causes tumor regression in Walker 256 tumor-bearing rats. Sci Rep 2019; 9:16524. [PMID: 31712726 PMCID: PMC6848483 DOI: 10.1038/s41598-019-52956-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 10/21/2019] [Indexed: 12/23/2022] Open
Abstract
The role of neutrophils in cancer is still very contradictory. Several studies have demonstrated the cytotoxic capacity of neutrophils against different types of tumors, by releasing inflammatory cytokines, ROS and activating other immune cells. On the other hand, recent papers have claimed the protumorigenic action of neutrophils, mainly by changing their phenotype and producing cytokines that promote tumor growth. In this context, this study aimed to evaluate neutrophil action and function during tumor development. To do so, we used male Wistar rats inoculated with Walker 256 breast carcinoma. Tumor, circulating neutrophils and bone marrow were studied in the following time points after tumor inoculation: 12 h, 24 h, 48 h, 3 d, 5 d, 7 d, 10 d, and 14 d, in order to analyze neutrophil migration kinetics, circulating neutrophil phenotype and bone marrow response to the tumor growth. Herein, our results demonstrated that W256T was unable to trigger an intratumoral inflammatory response after 5 days of tumor development and consequently, from that point on, prevented neutrophil migration to its microenvironment. Also, the tumor changed circulating neutrophil phenotype by up-regulating inflammation-related genes. Even though circulating neutrophils were entirely able to respond to an inflammatory stimulus, they did not recognize and attack the tumor, allowing the tumor to grow without any immune interference. To promote the entry of neutrophils into the tumor microenvironment, LPS was injected intratumorally. Neutrophil migration and activation due to LPS injection resulted in complete tumor regression in all subjects. In conclusion, activating neutrophils, within the tumor, turned the carcinoma into a recognizable immune target and eliminated it.
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Gutiérrez S, Svahn SL, Johansson ME. Effects of Omega-3 Fatty Acids on Immune Cells. Int J Mol Sci 2019; 20:ijms20205028. [PMID: 31614433 PMCID: PMC6834330 DOI: 10.3390/ijms20205028] [Citation(s) in RCA: 270] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 09/27/2019] [Accepted: 10/02/2019] [Indexed: 12/14/2022] Open
Abstract
Alterations on the immune system caused by omega-3 fatty acids have been described for 30 years. This family of polyunsaturated fatty acids exerts major alterations on the activation of cells from both the innate and the adaptive immune system, although the mechanisms for such regulation are diverse. First, as a constitutive part of the cellular membrane, omega-3 fatty acids can regulate cellular membrane properties, such as membrane fluidity or complex assembly in lipid rafts. In recent years, however, a new role for omega-3 fatty acids and their derivatives as signaling molecules has emerged. In this review, we describe the latest findings describing the effects of omega-3 fatty acids on different cells from the immune system and their possible molecular mechanisms.
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Affiliation(s)
- Saray Gutiérrez
- Department of Physiology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden.
| | - Sara L Svahn
- Department of Physiology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden.
| | - Maria E Johansson
- Department of Physiology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden.
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Talla U, Bozonet SM, Parker HA, Hampton MB, Vissers MCM. Prolonged exposure to hypoxia induces an autophagy-like cell survival program in human neutrophils. J Leukoc Biol 2019; 106:1367-1379. [PMID: 31412152 DOI: 10.1002/jlb.4a0319-079rr] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 07/14/2019] [Accepted: 07/14/2019] [Indexed: 12/13/2022] Open
Abstract
Neutrophils contribute to low oxygen availability at inflammatory sites through the generation of reactive oxidants. They are also functionally affected by hypoxia, which delays neutrophil apoptosis. However, the eventual fate of neutrophils in hypoxic conditions is unknown and this is important for their effective clearance and the resolution of inflammation. We have monitored the survival and function of normal human neutrophils exposed to hypoxia over a 48 h period. Apoptosis was delayed, and the cells remained intact even at 48 h. However, hypoxia promoted significant changes in neutrophil morphology with the appearance of many new cytoplasmic vesicles, often containing cell material, within 5 hours of exposure to low O2 . This coincided with an increase in LC3B-II expression, indicative of autophagosome formation and an autophagy-like process. In hypoxic conditions, neutrophils preferentially lost myeloperoxidase, a marker of azurophil granules. Short-term (2 h) hypoxic exposure resulted in sustained potential to generate superoxide when O2 was restored, but the capacity for oxidant production was lost with longer periods of hypoxia. Phagocytic ability was unchanged by hypoxia, and bacterial killing by neutrophils in both normoxic and hypoxic conditions was substantially diminished after 24 hours. However, pre-exposure to hypoxia resulted in an enhanced ability to kill bacteria by oxidant-independent mechanisms. Our data provide the first evidence for hypoxia as a driver of neutrophil autophagy that can influence the function and ultimate fate of these cells, including their eventual clearance and the resolution of inflammation.
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Affiliation(s)
- Usharani Talla
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Stephanie M Bozonet
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Heather A Parker
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Mark B Hampton
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Margreet C M Vissers
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
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Dietary Polyunsaturated Fatty Acids Promote Neutrophil Accumulation in the Spleen by Altering Chemotaxis and Delaying Cell Death. Infect Immun 2019; 87:IAI.00270-19. [PMID: 31085706 DOI: 10.1128/iai.00270-19] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 05/04/2019] [Indexed: 12/13/2022] Open
Abstract
Neutrophils are the most abundant circulating leukocytes in humans and are essential for the defense against invading pathogens. Like many other cells of an organism, neutrophils can be highly influenced by the diet. We have previously described that mice fed a high-fat diet rich in polyunsaturated fatty acids (HFD-P) present a higher frequency of neutrophils in bone marrow than mice fed a high-fat diet rich in saturated fatty acids (HFD-S). Interestingly, such an increase correlated with improved survival against bacterium-induced sepsis. In this study, we aimed to investigate the effects of dietary polyunsaturated and saturated fatty acids on neutrophil homeostasis. We found that HFD-P specifically induced the accumulation of neutrophils in the marginal pools of the spleen and liver. The accumulation of neutrophils in the spleen was a result of a dual effect of polyunsaturated fatty acids on neutrophil homeostasis. First, polyunsaturated fatty acids enhanced the recruitment of neutrophils from the circulation into the spleen via chemokine secretion. Second, they delayed neutrophil cell death in the spleen. Interestingly, these effects were not observed in mice fed a diet rich in saturated fatty acids, suggesting that the type of fat rather than the amount of fat mediates the alterations in neutrophil homeostasis. In conclusion, our results show that dietary polyunsaturated fatty acids have a strong modulatory effect on neutrophil homeostasis that may have future clinical applications.
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Rungelrath V, Kobayashi SD, DeLeo FR. Neutrophils in innate immunity and systems biology-level approaches. WILEY INTERDISCIPLINARY REVIEWS-SYSTEMS BIOLOGY AND MEDICINE 2019; 12:e1458. [PMID: 31218817 DOI: 10.1002/wsbm.1458] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 05/22/2019] [Accepted: 05/23/2019] [Indexed: 12/14/2022]
Abstract
The innate immune system is the first line of host defense against invading microorganisms. Polymorphonuclear leukocytes (PMNs or neutrophils) are the most abundant leukocyte in humans and essential to the innate immune response against invading pathogens. Compared to the acquired immune response, which requires time to develop and is dependent on previous interaction with specific microbes, the ability of neutrophils to kill microorganisms is immediate, nonspecific, and not dependent on previous exposure to microorganisms. Historically, studies of PMN-pathogen interaction focused on the events leading to killing of microorganisms, such as recruitment/chemotaxis, transmigration, phagocytosis, and activation, whereas postphagocytosis sequelae were infrequently considered. In addition, it was widely accepted that human neutrophils possessed limited capacity for new gene transcription and thus, relatively little biosynthetic capacity. This notion has changed dramatically within the past 20 years. Further, there is now more effort directed to understand the events occurring in PMNs after killing of microbes. Herein, we give an updated review of the systems biology-level approaches that have been used to gain an enhanced view of the role of neutrophils during host-pathogen interaction and neutrophil-mediated diseases. We anticipate that these and future systems-level studies will continue to provide information important for understanding, treatment, and control of diseases caused by pathogenic microorganisms. This article is categorized under: Physiology > Organismal Responses to Environment Physiology > Mammalian Physiology in Health and Disease Biological Mechanisms > Cell Fates.
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Affiliation(s)
- Viktoria Rungelrath
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Scott D Kobayashi
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Frank R DeLeo
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
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Mai N, Miller-Rhodes K, Knowlden S, Halterman MW. The post-cardiac arrest syndrome: A case for lung-brain coupling and opportunities for neuroprotection. J Cereb Blood Flow Metab 2019; 39:939-958. [PMID: 30866740 PMCID: PMC6547189 DOI: 10.1177/0271678x19835552] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Systemic inflammation and multi-organ failure represent hallmarks of the post-cardiac arrest syndrome (PCAS) and predict severe neurological injury and often fatal outcomes. Current interventions for cardiac arrest focus on the reversal of precipitating cardiac pathologies and the implementation of supportive measures with the goal of limiting damage to at-risk tissue. Despite the widespread use of targeted temperature management, there remain no proven approaches to manage reperfusion injury in the period following the return of spontaneous circulation. Recent evidence has implicated the lung as a moderator of systemic inflammation following remote somatic injury in part through effects on innate immune priming. In this review, we explore concepts related to lung-dependent innate immune priming and its potential role in PCAS. Specifically, we propose and investigate the conceptual model of lung-brain coupling drawing from the broader literature connecting tissue damage and acute lung injury with cerebral reperfusion injury. Subsequently, we consider the role that interventions designed to short-circuit lung-dependent immune priming might play in improving patient outcomes following cardiac arrest and possibly other acute neurological injuries.
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Affiliation(s)
- Nguyen Mai
- 1 Department of Neuroscience, School of Medicine and Dentistry, The University of Rochester, Rochester, NY, USA.,2 Center for Neurotherapeutics Discovery, School of Medicine and Dentistry, The University of Rochester, Rochester, NY, USA
| | - Kathleen Miller-Rhodes
- 1 Department of Neuroscience, School of Medicine and Dentistry, The University of Rochester, Rochester, NY, USA.,2 Center for Neurotherapeutics Discovery, School of Medicine and Dentistry, The University of Rochester, Rochester, NY, USA
| | - Sara Knowlden
- 2 Center for Neurotherapeutics Discovery, School of Medicine and Dentistry, The University of Rochester, Rochester, NY, USA.,3 Department of Neurology, School of Medicine and Dentistry, The University of Rochester, Rochester, NY, USA
| | - Marc W Halterman
- 1 Department of Neuroscience, School of Medicine and Dentistry, The University of Rochester, Rochester, NY, USA.,2 Center for Neurotherapeutics Discovery, School of Medicine and Dentistry, The University of Rochester, Rochester, NY, USA.,3 Department of Neurology, School of Medicine and Dentistry, The University of Rochester, Rochester, NY, USA
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Hidalgo A, Chilvers ER, Summers C, Koenderman L. The Neutrophil Life Cycle. Trends Immunol 2019; 40:584-597. [PMID: 31153737 DOI: 10.1016/j.it.2019.04.013] [Citation(s) in RCA: 230] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/25/2019] [Accepted: 04/28/2019] [Indexed: 02/07/2023]
Abstract
Neutrophils are recognized as an essential part of the innate immune response, but an active debate still exists regarding the life cycle of these cells. Neutrophils first differentiate in the bone marrow through progenitor intermediaries before entering the blood, in a process that gauges the extramedullary pool size. Once believed to be directly eliminated in the marrow, liver, and spleen, neutrophils, after circulating for less than 1 day, are now known to redistribute into multiple tissues with poorly understood kinetics. In this review, we provide an update on the dynamic distribution of neutrophils across tissues in health and disease, and emphasize differences between humans and model organisms. We further highlight issues to be addressed to exploit the unique features of neutrophils in the clinic.
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Affiliation(s)
- Andrés Hidalgo
- Area of Developmental and Cell Biology, Centro Nacional de Investigaciones, Cardiovasculares Carlos III (CNIC), Madrid, Spain; Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität München, Munich, Germany; German Centre for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany.
| | - Edwin R Chilvers
- National Heart and Lung Institute, Imperial College London, London, UK.
| | - Charlotte Summers
- Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge, UK.
| | - Leo Koenderman
- Laboratory of Translational Immunology, Department of Respiratory Medicine, University Medical Centre Utrecht, Utrecht, The Netherlands.
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Abstract
Neutrophils have always been considered as uncomplicated front-line troopers of the innate immune system equipped with limited proinflammatory duties. Yet recently, the role of the neutrophil has been undergoing a rejuvenation of sorts. Neutrophils are now considered complex cells capable of a significant array of specialized functions, and as an effector of the innate immune response, they are able to regulate many processes such as acute injury and repair, cancer, autoimmunity, and chronic inflammatory processes. Furthermore, evidence exists to indicate that neutrophils also contribute to adaptive immunity by aiding the development of specific adaptive immune responses or guiding the subsequent adaptive immune response. With this revived interest in neutrophils and their many novel functions, it is prudent to review what is currently known about neutrophils and, even more importantly, understand what information is lacking. We discuss the essential features of the neutrophil, from its origins, lifespan, subsets, margination and sequestration of the neutrophil to the death of the neutrophil. We highlight neutrophil recruitment to both infected and injured tissues and outline differences in recruitment of neutrophils between different tissues. Finally, we examine how neutrophils use different mechanisms to either bolster protective immune responses or negatively cause pathological outcomes at different locations.
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Affiliation(s)
- Pei Xiong Liew
- Snyder Institute of Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; and Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Paul Kubes
- Snyder Institute of Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; and Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
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Tregay N, Begg M, Cahn A, Farahi N, Povey K, Madhavan S, Simmonds R, Gillett D, Solanki C, Wong A, Maison J, Lennon M, Bradley G, Jarvis E, de Groot M, Wilson F, Babar J, Peters AM, Hessel EM, Chilvers ER. Use of autologous 99mTechnetium-labelled neutrophils to quantify lung neutrophil clearance in COPD. Thorax 2019; 74:659-666. [PMID: 30674586 PMCID: PMC6585304 DOI: 10.1136/thoraxjnl-2018-212509] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/06/2018] [Accepted: 12/10/2018] [Indexed: 01/21/2023]
Abstract
Rationale There is a need to develop imaging protocols which assess neutrophilic inflammation in the lung. Aim To quantify whole lung neutrophil accumulation in (1) healthy volunteers (HV) following inhaled lipopolysaccharide (LPS) or saline and (2) patients with COPD using radiolabelled autologous neutrophils and single-photon emission computed tomography/CT (SPECT/CT). Methods 20 patients with COPD (Global initiative for chronic obstructive lung disease (GOLD) stages 2–3) and 18 HVs were studied. HVs received inhaled saline (n=6) or LPS (50 µg, n=12) prior to the injection of radiolabelled cells. Neutrophils were isolated using dextran sedimentation and Percoll plasma gradients and labelled with 99mTechnetium (Tc)-hexamethylpropyleneamine oxime. SPECT was performed over the thorax/upper abdomen at 45 min, 2 hours, 4 hours and 6 hours. Circulating biomarkers were measured prechallenge and post challenge. Blood neutrophil clearance in the lung was determined using Patlak-Rutland graphical analysis. Results There was increased accumulation of 99mTc-neutrophils in the lungs of patients with COPD and LPS-challenged subjects compared with saline-challenged subjects (saline: 0.0006±0.0003 mL/min/mL lung blood distribution volume [mean ±1 SD]; COPD: 0.0022±0.0010 mL/min/mL [p<0.001]; LPS: 0.0025±0.0008 mL/min/mL [p<0.001]). The accumulation of labelled neutrophils in 10 patients with COPD who underwent repeat radiolabelling/imaging 7–10 days later was highly reproducible (0.0022±0.0010 mL/min/mL vs 0.0023±0.0009 mL/min/mL). Baseline interleukin (IL)-6 levels in patients with COPD were elevated compared with HVs (1.5±1.06 pg/mL [mean ±1 SD] vs 0.4±0.24 pg/mL). LPS challenge increased the circulating IL-6 levels (7.5±2.72 pg/mL) 9 hours post challenge. Conclusions This study shows the ability to quantify ‘whole lung’ neutrophil accumulation in HVs following LPS inhalation and in subjects with COPD using autologous radiolabelled neutrophils and SPECT/CT imaging. Moreover, the reproducibility observed supports the feasibility of using this approach to determine the efficacy of therapeutic agents aimed at altering neutrophil migration to the lungs.
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Affiliation(s)
- Nicola Tregay
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Malcolm Begg
- Refractory Respiratory Inflammation DPU, Respiratory TAU, GlaxoSmithKline, Stevenage, UK
| | - Anthony Cahn
- Discovery Medicine, Respiratory TAU, GlaxoSmithKline, Stevenage, UK
| | - Neda Farahi
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Kathryn Povey
- Clinical Pharmacology Science and Study Operations, GlaxoSmithKline, Stockley Park, UK
| | | | | | - Daniel Gillett
- Department of Nuclear Medicine, Cambridge University Hospitals, Cambridge, UK
| | - Chandra Solanki
- Department of Nuclear Medicine, Cambridge University Hospitals, Cambridge, UK
| | - Anna Wong
- Department of Nuclear Medicine, Cambridge University Hospitals, Cambridge, UK
| | - Joanna Maison
- Clinical Unit Cambridge, GlaxoSmithKline, Cambridge, UK
| | - Mark Lennon
- Target Sciences, GlaxoSmithKline, Stevenage, UK
| | | | | | - Marius de Groot
- Experimental Medicine Unit, Immunoinflammation TAU, GlaxoSmithKline, Stevenage, UK.,Department of Radiology, Cambridge University Hospitals, Cambridge, UK
| | - Fred Wilson
- Experimental Medicine Unit, Immunoinflammation TAU, GlaxoSmithKline, Stevenage, UK
| | - Judith Babar
- Department of Radiology, Cambridge University Hospitals, Cambridge, UK
| | - A Michael Peters
- Division of Clinical and Laboratory Investigation, Brighton and Sussex Medical School, Brighton, UK
| | - Edith M Hessel
- Refractory Respiratory Inflammation DPU, Respiratory TAU, GlaxoSmithKline, Stevenage, UK
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46
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Jones AW, Davison G. Exercise, Immunity, and Illness. MUSCLE AND EXERCISE PHYSIOLOGY 2019. [PMCID: PMC7149380 DOI: 10.1016/b978-0-12-814593-7.00015-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
It is generally accepted that moderate amounts of exercise improve immune system functions and hence reduce the risk of infection whereas athletes engaged in regular prolonged and/or intensive training have a higher than “normal” incidence of minor infections, especially of the upper respiratory tract (URT, e.g., common cold and influenza). This is likely related to regular acute (and possibly chronic) periods of exercise-induced changes in immune function. URT infections can compromise performance directly if suffered shortly before or during competition or indirectly if suffered at other times via effects on training and/or physiological adaptations. This chapter covers the effects of exercise (acute and chronic), both positive and negative, on immune function and consequent infection risk, and considers the current state-of-the-art for monitoring and assessing this in athletes.
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Diagnostic Utility of Serum Neutrophil Gelatinase-Associated Lipocalin in Polytraumatized Patients Suffering Acute Kidney Injury: A Prospective Study. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2687584. [PMID: 30533430 PMCID: PMC6247699 DOI: 10.1155/2018/2687584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 09/27/2018] [Accepted: 10/23/2018] [Indexed: 11/18/2022]
Abstract
Introduction The incidence of acute kidney injury (AKI) considerably increases the mortality rate in polytrauma victims. Undoubtedly, early identification of patients at risk is crucial for timely implementation of preventive strategies in order to improve their prognosis. Therefore, we aimed to investigate if serum neutrophil gelatinase-associated lipocalin (sNGAL) may serve as a diagnostic biomarker of early AKI in polytrauma victims, especially considering patients needing renal replacement theory (RRT). Material and Methods Forty consecutive polytrauma victims (ISS ≥ 16, AISThorax ≥ 1, age ≥ 18 years, survival time ≥ 48 hours), directly admitted to our level I trauma center within one posttraumatic hour, were enrolled in our prospective study. sNGAL-levels were assessed at admission (initial) and on day 2 after trauma. AKI was diagnosed by an increase of serum creatinine (sCr) level of at least 0.3 mg/dl within 48 hours. Results Out of 30 men and 10 women (mean age, 43 years; mean ISS, 29), seven patients developed AKI, four of them needing RRT. AKI was diagnosed in 86% of the affected individuals until day 2. Day2-sNGAL-levels were higher in the AKI-group, compared to the no-AKI-group (p=0.049), and in patients treated with RRT than in individuals not needing RRT (p=0.037). Noteworthy, in patients not needing RRT sNGAL-levels significantly decreased from initial to day2-measurement (p=0.040). Furthermore, at any time point during our observation period polytraumatized patients with AKI and day2-sNGAL-levels of at least 181.0 ng/mL presented with higher sCr-levels compared to polytraumatized patients without AKI and day2-sNGAL-levels lower than 181.0 ng/mL (p≤0.029). Conclusion In polytrauma victims suffering AKI an increase in sNGAL-level from initial to day2-assessment may signalize deterioration in kidney function and thus indicate AKI progression. Unlike initial sNGAL-levels day2-sNGAL-levels might be an appropriate tool to define AKI and to signify the need of RRT in polytraumatized patients.
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Hellebrekers P, Vrisekoop N, Koenderman L. Neutrophil phenotypes in health and disease. Eur J Clin Invest 2018; 48 Suppl 2:e12943. [PMID: 29682724 PMCID: PMC6282827 DOI: 10.1111/eci.12943] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 04/18/2018] [Indexed: 12/11/2022]
Abstract
Neutrophils are one of the most important effector cells of the innate immune response (1). They are traditionally seen as a homogenous population of short-lived cells mainly involved in the defence against extracellular microorganisms by phagocytosis and intracellular killing (1,2). The cells contain a large armamentarium that aids in this function and ranges from the production of reactive oxygen species by a membrane-bound NADPH oxidase to cytotoxic proteins and peptides residing in the different granules present in the cytoplasm (3). Recently, the view of neutrophils belonging to a homogenous population of cells has been challenged, and several neutrophil phenotypes have been described that exhibit specialized functions, such as involvement in tissue repair, tumour killing and immune regulation (4). It is not clear whether these cells belong to separate parallel lineages originating from the bone marrow or that neutrophils become instructed in the distant tissues, thus changing their phenotypes. In addition, functional heterogeneity in a phenotypically homogenous population of neutrophils adds to the complexity of neutrophil phenotypes(5). This article will review the current literature describing the heterogeneity within the neutrophil compartment with respect to both phenotype and function in health and disease.
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Affiliation(s)
- Pien Hellebrekers
- Department of Respiratory Medicine and laboratory of translational immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Nienke Vrisekoop
- Department of Respiratory Medicine and laboratory of translational immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Leo Koenderman
- Department of Respiratory Medicine and laboratory of translational immunology, University Medical Center Utrecht, Utrecht, the Netherlands
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van Staveren S, ten Haaf T, Klöpping M, Hilvering B, Tinnevelt GH, de Ruiter K, Piacentini MF, Roelands B, Meeusen R, de Koning JJ, Jansen JJ, Vrisekoop N, Koenderman L. Multi-dimensional flow cytometry analysis reveals increasing changes in the systemic neutrophil compartment during seven consecutive days of endurance exercise. PLoS One 2018; 13:e0206175. [PMID: 30376575 PMCID: PMC6207321 DOI: 10.1371/journal.pone.0206175] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/08/2018] [Indexed: 12/30/2022] Open
Abstract
Endurance exercise is associated with a transient increase in neutrophil counts in the peripheral blood. Here we investigate the impact of intensified endurance exercise on the neutrophil compartment. We hypothesized that intensified endurance exercise leads to mobilization of neutrophil subsets, which are normally absent in the blood. Furthermore, we followed the potential build-up of neutrophil activation and the impact on overnight recovery of the neutrophil compartment during a seven-day cycling tour. The neutrophil compartment was studied in 28 healthy amateur cyclists participating in an eight-day strenuous cycling tour. Blood samples were taken at baseline, after 4 days and after 7 days of cycling. The neutrophil compartment was analyzed in terms of numbers and its phenotype by deep phenotyping of flow cytometry data with the multi-dimensional analysis method FLOOD. Repeated endurance exercise led to a gradual increase in total neutrophil counts over the days leading to a 1.26 fold-increase (95%CI 1.01–1.51 p = 0.0431) in the morning of day 8. Flow cytometric measurements revealed the appearance of 2 additional neutrophil subsets: CD16brightCD62Ldim and CD16dimCD62Lbright. A complex change in neutrophil phenotypes was present characterized by decreased expression of both CD11b and CD62L and marked increased expression of LAIR-1, VLA-4 and CBRM1/5. The changes in expression were found on all neutrophils present in the blood. Strikingly, in strong contrast to our findings during acute inflammation evoked by LPS challenge, these neutrophils did not upregulate classical degranulation markers. In fact, our FLOOD analysis revealed that the exercise induced neutrophil phenotype did not overlap with the neutrophil subsets arising upon acute inflammation. In conclusion, during multiple days of endurance exercise the neutrophil compartment does not regain homeostasis overnight. Thereby our study supports the concept of a build-up of inflammatory cues during repeated endurance exercise training, causing a prolonged change of the systemic neutrophil compartment.
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Affiliation(s)
- Selma van Staveren
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
- TI-COAST, Amsterdam, The Netherlands
| | - Twan ten Haaf
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
| | - Margot Klöpping
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
| | - Bart Hilvering
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
| | - Gerjen H. Tinnevelt
- TI-COAST, Amsterdam, The Netherlands
- Analytical Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Karin de Ruiter
- Department of Parasitology, LUMC Leiden, Leiden, The Netherlands
| | - Maria F. Piacentini
- Department of Human Movement and Sport Sciences, University of Rome “Foro Italico”, Rome, Italy
| | - Bart Roelands
- Human Physiology Research Group, Vrije Universiteit Brussel, Brussels, Belgium
| | - Romain Meeusen
- Human Physiology Research Group, Vrije Universiteit Brussel, Brussels, Belgium
- School of Public Health, Tropical Medicine and Rehabilitation Sciences, James Cook University, Townsville, Queensland, Australia
| | - Jos J. de Koning
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
- Department of Exercise and Sports Science, University of Wisconsin-La Crosse, La Crosse, WI, United States of America
| | - Jeroen J. Jansen
- Analytical Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Nienke Vrisekoop
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
| | - Leo Koenderman
- Department of Respiratory Medicine, Laboratory of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
- * E-mail:
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Rijkschroeff P, Loos BG, Nicu EA. Oral Polymorphonuclear Neutrophil Contributes to Oral Health. CURRENT ORAL HEALTH REPORTS 2018; 5:211-220. [PMID: 30524928 PMCID: PMC6244624 DOI: 10.1007/s40496-018-0199-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE OF REVIEW Oral health is maintained in a dynamic equilibrium between the host immunity and the oral microbiome. Oral polymorphonuclear neutrophils (oPMNs) are important innate immune cells in the oral cavity. RECENT FINDINGS The oPMNs play a co-controlling part in the maintenance of oral equilibrium. In human saliva, the oPMNs integrity is preserved, and their function remains unaffected. In general, oPMNs are in a higher state of baseline activation compared to peripheral PMNs. However, in periodontitis, the oPMNs' activation state can result in excessive release of damaging molecules in the extracellular environment. SUMMARY The presence of oPMNs may unwittingly negatively impact the integrity of the oral tissues. While most of the oPMN functions occur intracellularly, release of their potent active mediators into the extracellular environment may jeopardize oral homeostasis and its integrity. The dual nature of oPMNs, both beneficial and detrimental, remains a challenging and understudied topic.
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Affiliation(s)
- Patrick Rijkschroeff
- Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands
| | - Bruno G. Loos
- Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands
| | - Elena A. Nicu
- Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands
- Opris Dent SRL, Sibiu, Romania
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