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Cardelli M, Pierpaoli E, Marchegiani F, Marcheselli F, Piacenza F, Giacconi R, Recchioni R, Casoli T, Stripoli P, Provinciali M, Matacchione G, Giuliani A, Ramini D, Sabbatinelli J, Bonafè M, Di Rosa M, Cherubini A, Di Pentima C, Spannella F, Antonicelli R, Bonfigli AR, Olivieri F, Lattanzio F. Biomarkers of cell damage, neutrophil and macrophage activation associated with in-hospital mortality in geriatric COVID-19 patients. Immun Ageing 2022; 19:65. [PMID: 36522763 PMCID: PMC9751505 DOI: 10.1186/s12979-022-00315-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 10/10/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND The risk for symptomatic COVID-19 requiring hospitalization is higher in the older population. The course of the disease in hospitalised older patients may show significant variation, from mild to severe illness, ultimately leading to death in the most critical cases. The analysis of circulating biomolecules involved in mechanisms of inflammation, cell damage and innate immunity could lead to identify new biomarkers of COVID-19 severity, aimed to improve the clinical management of subjects at higher risk of severe outcomes. In a cohort of COVID-19 geriatric patients (n= 156) who required hospitalization we analysed, on-admission, a series of circulating biomarkers related to neutrophil activation (neutrophil elastase, LL-37), macrophage activation (sCD163) and cell damage (nuclear cfDNA, mithocondrial cfDNA and nuclear cfDNA integrity). The above reported biomarkers were tested for their association with in-hospital mortality and with clinical, inflammatory and routine hematological parameters. Aim of the study was to unravel prognostic parameters for risk stratification of COVID-19 patients. RESULTS Lower n-cfDNA integrity, higher neutrophil elastase and higher sCD163 levels were significantly associated with an increased risk of in-hospital decease. Median (IQR) values observed in discharged vs. deceased patients were: 0.50 (0.30-0.72) vs. 0.33 (0.22-0.62) for n-cfDNA integrity; 94.0 (47.7-154.0) ng/ml vs. 115.7 (84.2-212.7) ng/ml for neutrophil elastase; 614.0 (370.0-821.0) ng/ml vs. 787.0 (560.0-1304.0) ng/ml for sCD163. The analysis of survival curves in patients stratified for tertiles of each biomarker showed that patients with n-cfDNA integrity < 0.32 or sCD163 in the range 492-811 ng/ml had higher risk of in-hospital decease than, respectively, patients with higher n-cfDNA integrity or lower sCD163. These associations were further confirmed in multivariate models adjusted for age, sex and outcome-related clinical variables. In these models also high levels of neutrophil elastase (>150 ng/ml) appeared to be independent predictor of in-hospital death. An additional analysis of neutrophil elastase in patients stratified for n-cfDNA integrity levels was conducted to better describe the association of the studied parameters with the outcome. CONCLUSIONS On the whole, biomarkers of cell-free DNA integrity, neutrophil and macrophage activation might provide a valuable contribution to identify geriatric patients with high risk of COVID-19 in-hospital mortality.
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Affiliation(s)
- M. Cardelli
- Advanced Technology Center for Aging Research, Scientific Technological Area, IRCCS INRCA, Ancona, Italy
| | - E. Pierpaoli
- Advanced Technology Center for Aging Research, Scientific Technological Area, IRCCS INRCA, Ancona, Italy
| | - F. Marchegiani
- Center of Clinical Pathology and Innovative Therapy, IRCCS INRCA, Ancona, Italy
| | - F. Marcheselli
- Center of Clinical Pathology and Innovative Therapy, IRCCS INRCA, Ancona, Italy
| | - F. Piacenza
- Advanced Technology Center for Aging Research, Scientific Technological Area, IRCCS INRCA, Ancona, Italy
| | - R. Giacconi
- Advanced Technology Center for Aging Research, Scientific Technological Area, IRCCS INRCA, Ancona, Italy
| | - R. Recchioni
- Center of Clinical Pathology and Innovative Therapy, IRCCS INRCA, Ancona, Italy
| | - T. Casoli
- Center for Neurobiology of Aging, Scientific Technological Area, IRCCS INRCA, Via Birarelli 8, 60121 Ancona, Italy
| | - P. Stripoli
- Center of Clinical Pathology and Innovative Therapy, IRCCS INRCA, Ancona, Italy
| | - M. Provinciali
- Advanced Technology Center for Aging Research, Scientific Technological Area, IRCCS INRCA, Ancona, Italy
| | - G. Matacchione
- grid.7010.60000 0001 1017 3210Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Via Tronto 10/a, 60126 Ancona, Italy
| | - A. Giuliani
- grid.7010.60000 0001 1017 3210Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Via Tronto 10/a, 60126 Ancona, Italy
| | - D. Ramini
- Center of Clinical Pathology and Innovative Therapy, IRCCS INRCA, Ancona, Italy
| | - J. Sabbatinelli
- grid.411490.90000 0004 1759 6306SOD Medicina di Laboratorio, Azienda Ospedaliero Universitaria Ospedali Riuniti, Ancona, Italy
| | - M. Bonafè
- grid.6292.f0000 0004 1757 1758Department of Experimental, Diagnostic, and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | - M. Di Rosa
- Unit of Geriatric Pharmacoepidemiology and Biostatistics, IRCCS INRCA, Cosenza, Italy
| | - A. Cherubini
- Geriatria, Accettazione geriatrica e Centro di Ricerca per l’invecchiamento, IRCCS INRCA, Ancona, Italy
| | - C. Di Pentima
- Internal Medicine and Geriatrics, IRCCS INRCA, Via della Montagnola 81, 60127 Ancona, Italy
| | - F. Spannella
- Internal Medicine and Geriatrics, IRCCS INRCA, Via della Montagnola 81, 60127 Ancona, Italy
| | | | - A. R. Bonfigli
- Scientific Direction and Geriatric Unit, IRCCS INRCA, Ancona, Italy
| | - F. Olivieri
- grid.7010.60000 0001 1017 3210Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Via Tronto 10/a, 60126 Ancona, Italy
| | - F. Lattanzio
- Scientific Direction and Geriatric Unit, IRCCS INRCA, Ancona, Italy
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Blanc P, Liu Y, Reveneau N, Cavell B, Gorringe A, Renauld-Mongénie G. The role of bactericidal and opsonic activity in immunity against Bordetella pertussis. Expert Rev Vaccines 2022; 21:1727-1738. [PMID: 36369768 DOI: 10.1080/14760584.2022.2137145] [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: 11/13/2022]
Abstract
INTRODUCTION Pertussis vaccines have drastically reduced the disease burden in humans since their implementation. Despite their success, pertussis remains an important global public health challenge. Bordetella pertussis resurgence could be a result of greater surveillance combined with improved diagnosis methods, changes in Bordetella pertussis biology, vaccine schedules, and/or coverage. Additionally, mechanisms of protection conferred by acellular pertussis (aP) and whole-cell pertussis (wP) vaccines differ qualitatively. There are no clear immune correlates of protection for pertussis vaccines. Pertussis antigens can induce toxin neutralizing antibodies, block adherence or engage complement mediated phagocytic/bactericidal killing. AREAS COVERED We reviewed the existing evidence on antibody-mediated serum bactericidal and opsonophagocytic activity and discussed the relevance of these functional antibodies in the development of next-generation pertussis vaccines. EXPERT OPINION Current paradigm proposes that wP vaccines may confer greater herd protection than aP vaccines due to their enhanced clearance of bacteria from the nasopharynx in animal models. Functional antibodies may contribute to the reduction of nasal colonization, which differentiates aP and wP vaccines. Understanding the intrinsic differences in protective immune responses elicited by each class of vaccines will help to identify biomarkers that can be used as immunological end points in clinical trials.
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Affiliation(s)
- Pascal Blanc
- Research & Development, Sanofi, Marcy l'Etoile, France
| | - Yuanqing Liu
- Research & Development, Sanofi, Marcy l'Etoile, France
| | | | - Breeze Cavell
- Department of Research and Evaluation, United Kingdom (UK) Health Security Agency, Salisbury, UK
| | - Andrew Gorringe
- Department of Research and Evaluation, United Kingdom (UK) Health Security Agency, Salisbury, UK
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103
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Jeong EK, Lee HJ, Jung YJ. Host-Directed Therapies for Tuberculosis. Pathogens 2022; 11:1291. [PMID: 36365041 PMCID: PMC9697779 DOI: 10.3390/pathogens11111291] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/20/2022] [Accepted: 10/28/2022] [Indexed: 02/04/2024] Open
Abstract
Tuberculosis (TB) is one of the leading causes of death worldwide, consistently threatening public health. Conventional tuberculosis treatment requires a long-term treatment regimen and is associated with side effects. The efficacy of antitubercular drugs has decreased with the emergence of drug-resistant TB; therefore, the development of new TB treatment strategies is urgently needed. In this context, we present host-directed therapy (HDT) as an alternative to current tuberculosis therapy. Unlike antitubercular drugs that directly target Mycobacterium tuberculosis (Mtb), the causative agent of TB, HDT is an approach for treating TB that appropriately modulates host immune responses. HDT primarily aims to enhance the antimicrobial activity of the host in order to control Mtb infection and attenuate excessive inflammation in order to minimize tissue damage. Recently, research based on the repositioning of drugs for use in HDT has been in progress. Based on the overall immune responses against Mtb infection and the immune-evasion mechanisms of Mtb, this review examines the repositioned drugs available for HDT and their mechanisms of action.
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Affiliation(s)
- Eui-Kwon Jeong
- BIT Medical Convergence Graduate Program, Kangwon National University, Chuncheon 24341, Korea
| | - Hyo-Ji Lee
- Department of Biological Sciences, Kangwon National University, Chuncheon 24341, Korea
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Korea
| | - Yu-Jin Jung
- BIT Medical Convergence Graduate Program, Kangwon National University, Chuncheon 24341, Korea
- Department of Biological Sciences, Kangwon National University, Chuncheon 24341, Korea
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Korea
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Phytochemical characterization and immunomodulatory effects of aqueous, ethanolic extracts and essential oil of Syzygium aromaticum L. on human neutrophils. SCIENTIFIC AFRICAN 2022. [DOI: 10.1016/j.sciaf.2022.e01395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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105
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Jacobo U, Kopel J, Reed J, Patel S, Jain S, Tran P, Abidi N, Bergfeld N, Reid T. The efficacy of organo-selenium conjugated cellulose polymer dressing to inhibit Candida albicans biofilm formation. METHODS IN MICROBIOLOGY 2022; 202:106598. [DOI: 10.1016/j.mimet.2022.106598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/06/2022] [Accepted: 10/06/2022] [Indexed: 10/31/2022]
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106
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Wang Z, Li X, Du S, Sun X, Huang J, Shao Y. Protective Effects of Zinc on Salmonella Invasion, Intestinal Morphology and Immune Response of Young Pigeons Infected with Salmonella enterica Serovar Typhimurium. Biol Trace Elem Res 2022; 200:4817-4827. [PMID: 35028867 DOI: 10.1007/s12011-021-03057-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/03/2021] [Indexed: 11/02/2022]
Abstract
The study aimed to determine the effects of orally supplemental zinc on body weight, Salmonella invasion, serum IgA, intestinal histomorphology, and immune response of Salmonella enterica serovar Typhimurium (S. typhimurium)-challenged young pigeons. A total of 72 healthy White King pigeons (25 days old) with similar weight were randomly assigned to 3 treatments with six replicate cages. The 3 treatments were unchallenged, S. typhimurium-challenged, and S. typhimurium-challenged orally supplemented with 1 mg zinc per bird. Salmonella infection decreased (P < 0.05) the body weight, the bursa index, the serum IgA content, and the villus height/crypt depth ratio in the ileum, but increased the neutrophil proportion (P < 0.001) and the mRNA expressions of IL-1β and IL-8 in the jejunum (P < 0.05). Orally supplemental zinc reduced (P = 0.007) the bacterial load in the liver and improved (P < 0.05) the body weight, the bursa index, the serum IgA content, the villus height/crypt depth ratio, and the NOD-like receptor family pyrin domain containing 3 (NLRP3) protein expression, as well as tended to increase (P = 0.064) the protein abundance of caspase-1 of the jejunum, but did not alleviate the high level of neutrophil proportion and IL-1β mRNA expression of the jejunum (P > 0.05). The results indicated that oral zinc supplementation improved the intestinal mucosal morphology and enhanced the immune response, as well as activated caspase-1-dependent cell pyroptosis pathways in the jejunal epithelium, thereby restricting Salmonella invasion of the challenged young pigeons.
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Affiliation(s)
- Zheng Wang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Xing Li
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Shaohua Du
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Xiaoshan Sun
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Jianguo Huang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Yuxin Shao
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
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Albaladejo-Riad N, Cuesta A, Esteban MÁ. Induction and characterization of extracellular traps by gilthead seabream (Sparus aurata L.) head-kidney leucocytes. FISH & SHELLFISH IMMUNOLOGY 2022; 130:582-590. [PMID: 36152801 DOI: 10.1016/j.fsi.2022.09.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/15/2022] [Accepted: 09/17/2022] [Indexed: 06/16/2023]
Abstract
The aim of this study was the induction and characterization of extracellular traps (ETs) produced by gilthead seabream (Sparus aurata L.) head-kidney leucocytes. The cells were incubated several times (10, 30, 60, 120, and 180 min) with different concentrations of the stimulants diluted in RPMI-1640 culture medium: RPMI-1640 (control), β-glucan from Saccharomyces cerevisiae (BG, 0-400 μg mL-1), lipopolysaccharide from Escherichia coli (LPS, 0-10 μg mL-1), calcium ionophore A23187 (CaI, 0-5 μg mL-1), Phorbol 12-myristate 13-acetate (PMA, 0-1000 ng mL-1) and polyinosinic-polycytidylic acid sodium salt (Poly I:C, 0-200 μg mL-1). BG, LPS and CaI exerted only weak stimulatory activity, while PMA and poly I:C exerted a potent one. After stimulation of the leucocytes, ETs structures were quantified and visualised through staining of the chromatin with nucleic acid-specific dyes and immunocytochemical probing of characteristic proteins expected to decorate the structure. ETs structures had DNA and myeloperoxidase. The ETs morphology was studied by light and scanning electron microscopy. These data confirm that seabream leucocytes form ETs with different morphological properties, depending on the used stimulant. These results will be the basis for new studies to analyse the implication of this mechanism in fish immunity. All this new knowledge will have its application in fish farms when we learn to manipulate the innate immune response in order to mitigate microbial infections.
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Affiliation(s)
- Nora Albaladejo-Riad
- Immunobiology for Aquaculture Group, Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, 30100, Murcia, Spain
| | - Alberto Cuesta
- Immunobiology for Aquaculture Group, Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, 30100, Murcia, Spain
| | - M Ángeles Esteban
- Immunobiology for Aquaculture Group, Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, 30100, Murcia, Spain.
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Beudeker CR, Vijlbrief DC, van Montfrans J, Rooijakkers SH, van der Flier M. Neonatal sepsis and transient immunodeficiency: Potential for novel immunoglobulin therapies? Front Immunol 2022; 13:1016877. [PMID: 36330515 PMCID: PMC9623314 DOI: 10.3389/fimmu.2022.1016877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/04/2022] [Indexed: 10/30/2023] Open
Abstract
Neonates, especially preterm neonates, have the highest risk of sepsis of all age groups. Transient immaturity of the neonatal immune system is an important risk factor. Neonates suffer from hypogammaglobulinemia as nor IgA nor IgM is transferred over the placenta and IgG is only transferred over the placenta late in gestation. In addition, neutrophil numbers and complement function are also decreased. This mini-review focuses on strategies to improve neonatal host-defense. Both clinical and preclinical studies have attempted to boost neonatal immunity to lower the incidence of sepsis and improve outcome. Recent advances in the development of (monoclonal) antibodies show promising results in preclinical studies but have yet to be tested in clinical trials. Strategies to increase complement activity seem efficient in vitro but potential disadvantages such as hyperinflammation have held back further clinical development. Increase of neutrophil numbers has been tested extensively in clinical trials but failed to show improvement in mortality. Future research should focus on clinical applicability of promising new prevention strategies for neonatal sepsis.
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Affiliation(s)
- Coco R. Beudeker
- Department of Pediatric Infectious Diseases and Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Daniel C. Vijlbrief
- Department of Neonatology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Joris M. van Montfrans
- Department of Pediatric Infectious Diseases and Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Suzan H.M. Rooijakkers
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Michiel van der Flier
- Department of Pediatric Infectious Diseases and Immunology, University Medical Center Utrecht, Utrecht, Netherlands
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109
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de Oliveira Formiga R, Amaral FC, Souza CF, Mendes DAGB, Wanderley CWS, Lorenzini CB, Santos AA, Antônia J, Faria LF, Natale CC, Paula NM, Silva PCS, Fonseca FR, Aires L, Heck N, Starick MR, Queiroz-Junior CM, Santos FRS, de Souza FRO, Costa VV, Barroso SPC, Morrot A, Van Weyenbergh J, Sordi R, Alisson-Silva F, Cunha FQ, Rocha EL, Chollet-Martin S, Hurtado-Nedelec MM, Martin C, Burgel PR, Mansur DS, Maurici R, Macauley MS, Báfica A, Witko-Sarsat V, Spiller F. Neuraminidase inhibitors rewire neutrophil function in vivo in murine sepsis and ex vivo in COVID-19. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2022:2020.11.12.379115. [PMID: 33200130 PMCID: PMC7668734 DOI: 10.1101/2020.11.12.379115] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Neutrophil overstimulation plays a crucial role in tissue damage during severe infections. Neuraminidase (NEU)-mediated cleavage of surface sialic acid has been demonstrated to regulate leukocyte responses. Here, we report that antiviral NEU inhibitors constrain host NEU activity, surface sialic acid release, ROS production, and NETs released by microbial-activated human neutrophils. In vivo, treatment with Oseltamivir results in infection control and host survival in peritonitis and pneumonia models of sepsis. Single-cell RNA sequencing re-analysis of publicly data sets of respiratory tract samples from critical COVID-19 patients revealed an overexpression of NEU1 in infiltrated neutrophils. Moreover, Oseltamivir or Zanamivir treatment of whole blood cells from severe COVID-19 patients reduces host NEU-mediated shedding of cell surface sialic acid and neutrophil overactivation. These findings suggest that neuraminidase inhibitors can serve as host-directed interventions to dampen neutrophil dysfunction in severe infections.
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Affiliation(s)
- Rodrigo de Oliveira Formiga
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Université de Paris, Institut Cochin, INSERM U1016, CNRS, Paris, France
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Flávia C. Amaral
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Camila F. Souza
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Daniel A. G. B. Mendes
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Carlos W. S. Wanderley
- Department of Pharmacology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Cristina B. Lorenzini
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Adara A. Santos
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Juliana Antônia
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Lucas F. Faria
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Caio C. Natale
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Nicholas M. Paula
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Priscila C. S. Silva
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Fernanda R. Fonseca
- Department of Clinical Medicine, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Luan Aires
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Nicoli Heck
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Márick R. Starick
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Celso M. Queiroz-Junior
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Felipe R. S. Santos
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Filipe R. O. de Souza
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Vivian V. Costa
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Shana P. C. Barroso
- Molecular Biology Laboratory, Institute of Biomedical Research, Marcilio Dias Naval Hospital, Navy of Brazil, RJ, Brazil
| | - Alexandre Morrot
- Tuberculosis Research Laboratory, Faculty of Medicine, Federal University of Rio de Janeiro
- Immunoparasitology Laboratory, Oswaldo Cruz Foundation, FIOCRUZ, Rio de Janeiro, Brazil
| | - Johan Van Weyenbergh
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory for Clinical and Epidemiological Virology, KU Leuven, Leuven, Belgium
| | - Regina Sordi
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Frederico Alisson-Silva
- Department of Immunology, Paulo de Goes Institute of Microbiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Fernando Q. Cunha
- Department of Pharmacology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Edroaldo L. Rocha
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Sylvie Chollet-Martin
- INSERM UMR 996, “Infammation, Microbiome and Immunosurveillance”, Faculty of Pharmacy, Université Paris-Saclay, Châtenay-Malabry, France
| | | | - Clémence Martin
- Université de Paris, Institut Cochin, INSERM U1016, CNRS, Paris, France
- Department of Pneumology, AP-HP, Hôpital Cochin, Paris, France
| | - Pierre-Régis Burgel
- Université de Paris, Institut Cochin, INSERM U1016, CNRS, Paris, France
- Department of Pneumology, AP-HP, Hôpital Cochin, Paris, France
| | - Daniel S. Mansur
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Rosemeri Maurici
- Department of Clinical Medicine, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Matthew S. Macauley
- Department of Chemistry, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - André Báfica
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | | | - Fernando Spiller
- Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
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Burnet M, Metcalf DG, Milo S, Gamerith C, Heinzle A, Sigl E, Eitel K, Haalboom M, Bowler PG. A Host-Directed Approach to the Detection of Infection in Hard-to-Heal Wounds. Diagnostics (Basel) 2022; 12:diagnostics12102408. [PMID: 36292097 PMCID: PMC9601189 DOI: 10.3390/diagnostics12102408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 01/08/2023] Open
Abstract
Wound infection is traditionally defined primarily by visual clinical signs, and secondarily by microbiological analysis of wound samples. However, these approaches have serious limitations in determining wound infection status, particularly in early phases or complex, chronic, hard-to-heal wounds. Early or predictive patient-derived biomarkers of wound infection would enable more timely and appropriate intervention. The observation that immune activation is one of the earliest responses to pathogen activity suggests that immune markers may indicate wound infection earlier and more reliably than by investigating potential pathogens themselves. One of the earliest immune responses is that of the innate immune cells (neutrophils) that are recruited to sites of infection by signals associated with cell damage. During acute infection, the neutrophils produce oxygen radicals and enzymes that either directly or indirectly destroy invading pathogens. These granular enzymes vary with cell type but include elastase, myeloperoxidase, lysozyme, and cathepsin G. Various clinical studies have demonstrated that collectively, these enzymes, are sensitive and reliable markers of both early-onset phases and established infections. The detection of innate immune cell enzymes in hard-to-heal wounds at point of care offers a new, simple, and effective approach to determining wound infection status and may offer significant advantages over uncertainties associated with clinical judgement, and the questionable value of wound microbiology. Additionally, by facilitating the detection of early wound infection, prompt, local wound hygiene interventions will likely enhance infection resolution and wound healing, reduce the requirement for systemic antibiotic therapy, and support antimicrobial stewardship initiatives in wound care.
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Affiliation(s)
- Michael Burnet
- Synovo GmbH, Paul Ehrlich Straße 15, 72076 Tuebingen, Germany
- Correspondence:
| | - Daniel G. Metcalf
- ConvaTec Ltd., First Avenue, Deeside Industrial Park, Deeside CH5 2NU, UK
| | - Scarlet Milo
- ConvaTec Ltd., First Avenue, Deeside Industrial Park, Deeside CH5 2NU, UK
| | - Clemens Gamerith
- Austrian Centre of Industrial Biotechnology, Krennagsse 37, A-8010 Graz, Austria
| | - Andrea Heinzle
- Qualizyme Diagnostics GmbH & Co. KG, Neue Stiftingtalstrasse 2, A-8010 Graz, Austria
| | - Eva Sigl
- Qualizyme Diagnostics GmbH & Co. KG, Neue Stiftingtalstrasse 2, A-8010 Graz, Austria
| | - Kornelia Eitel
- Synovo GmbH, Paul Ehrlich Straße 15, 72076 Tuebingen, Germany
| | - Marieke Haalboom
- Medical School Twente, Medisch Spectrum Twente, 7512 KZ Enschede, The Netherlands
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111
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Quiroga J, Alarcón P, Manosalva C, Teuber S, Carretta MD, Burgos RA. d-lactate-triggered extracellular trap formation in cattle polymorphonuclear leucocytes is glucose metabolism dependent. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 135:104492. [PMID: 35830898 DOI: 10.1016/j.dci.2022.104492] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
D-lactic acidosis is a metabolic disease of cattle caused by the digestive overgrowth of bacteria that are highly producers of d-lactate, a metabolite that then reaches and accumulates in the bloodstream. d-lactate is a proinflammatory agent in cattle that induces the formation of extracellular traps (ETs) in polymorphonuclear leucocytes (PMN), although information on PMN metabolic requirements for this response mechanism is insufficient. In the present study, metabolic pathways involved in ET formation induced by d-lactate were studied. We show that d-lactate but not l-lactate induced ET formation in cattle PMN. We analyzed the metabolomic changes induced by d-lactate in bovine PMN using gas chromatography-mass spectrometry (GC-MS). Several metabolic pathways were altered, including glycolysis/gluconeogenesis, amino sugar and nucleotide sugar metabolism, galactose metabolism, starch and sucrose metabolism, fructose and mannose metabolism, and pentose phosphate pathway. d-lactate increased intracellular levels of glucose and glucose-6-phosphate, and increased uptake of the fluorescent glucose analog 2-NBDG, suggesting improved glycolytic activity. In addition, using an enzymatic assay and transmission electron microscopy (TEM), we observed that d-lactate was able to decrease intracellular glycogen levels and the presence of glycogen granules. Relatedly, d-lactate increased the expression of enzymes of glycolysis, gluconeogenesis and glycogen metabolism. In addition, 2DG (a hexokinase inhibitor), 3PO (a 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 inhibitor), MB05032 (inhibitor of fructose-1,6-bisphosphatase) and CP-91149 (inhibitor of glycogen phosphorylase) reduced d-lactate-triggered ETosis. Taken together, these results suggest that d-lactate induces a metabolic rewiring that increases glycolysis, gluconeogenesis and glycogenolysis, all of which are required for d-lactate-induced ET release in cattle PMN.
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Affiliation(s)
- John Quiroga
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Escuela de Graduados, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Pablo Alarcón
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Carolina Manosalva
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Stefanie Teuber
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - María Daniella Carretta
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Rafael Agustín Burgos
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
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112
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Gimeno-Molina B, Muller I, Kropf P, Sykes L. The Role of Neutrophils in Pregnancy, Term and Preterm Labour. Life (Basel) 2022; 12:life12101512. [PMID: 36294949 PMCID: PMC9605051 DOI: 10.3390/life12101512] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Neutrophils are surveillance cells, and the first to react and migrate to sites of inflammation and infection following a chemotactic gradient. Neutrophils play a key role in both sterile inflammation and infection, performing a wide variety of effector functions such as degranulation, phagocytosis, ROS production and release of neutrophil extracellular traps (NETs). Healthy term labour requires a sterile pro-inflammatory process, whereas one of the most common causes of spontaneous preterm birth is microbial driven. Peripheral neutrophilia has long been described during pregnancy, and evidence exists demonstrating neutrophils infiltrating the cervix, uterus and foetal membranes during both term and preterm deliveries. Their presence supports a role in tissue remodelling via their effector functions. In this review, we describe the effector functions of neutrophils. We summarise the evidence to support their role in healthy pregnancy and labour and describe their potential contribution to microbial driven preterm birth.
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Affiliation(s)
- Belen Gimeno-Molina
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0HS, UK
- March of Dimes European Prematurity Research Centre, Imperial College London, London W12 0HS, UK
| | - Ingrid Muller
- Department of Infectious Diseases, Imperial College London, London W2 1NY, UK
| | - Pascale Kropf
- March of Dimes European Prematurity Research Centre, Imperial College London, London W12 0HS, UK
- Department of Infectious Diseases, Imperial College London, London W2 1NY, UK
| | - Lynne Sykes
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0HS, UK
- March of Dimes European Prematurity Research Centre, Imperial College London, London W12 0HS, UK
- The Parasol Foundation Centre for Women’s Health and Cancer Research, St. Mary’s Hospital, Imperial College Healthcare NHS Trust, London W2 1NY, UK
- Correspondence:
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113
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Danne C, Michaudel C, Skerniskyte J, Planchais J, Magniez A, Agus A, Michel ML, Lamas B, Da Costa G, Spatz M, Oeuvray C, Galbert C, Poirier M, Wang Y, Lapière A, Rolhion N, Ledent T, Pionneau C, Chardonnet S, Bellvert F, Cahoreau E, Rocher A, Arguello RR, Peyssonnaux C, Louis S, Richard ML, Langella P, El-Benna J, Marteyn B, Sokol H. CARD9 in neutrophils protects from colitis and controls mitochondrial metabolism and cell survival. Gut 2022; 72:1081-1092. [PMID: 36167663 DOI: 10.1136/gutjnl-2022-326917] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 09/04/2022] [Indexed: 12/08/2022]
Abstract
OBJECTIVES Inflammatory bowel disease (IBD) results from a combination of genetic predisposition, dysbiosis of the gut microbiota and environmental factors, leading to alterations in the gastrointestinal immune response and chronic inflammation. Caspase recruitment domain 9 (Card9), one of the IBD susceptibility genes, has been shown to protect against intestinal inflammation and fungal infection. However, the cell types and mechanisms involved in the CARD9 protective role against inflammation remain unknown. DESIGN We used dextran sulfate sodium (DSS)-induced and adoptive transfer colitis models in total and conditional CARD9 knock-out mice to uncover which cell types play a role in the CARD9 protective phenotype. The impact of Card9 deletion on neutrophil function was assessed by an in vivo model of fungal infection and various functional assays, including endpoint dilution assay, apoptosis assay by flow cytometry, proteomics and real-time bioenergetic profile analysis (Seahorse). RESULTS Lymphocytes are not intrinsically involved in the CARD9 protective role against colitis. CARD9 expression in neutrophils, but not in epithelial or CD11c+cells, protects against DSS-induced colitis. In the absence of CARD9, mitochondrial dysfunction increases mitochondrial reactive oxygen species production leading to the premature death of neutrophilsthrough apoptosis, especially in oxidative environment. The decreased functional neutrophils in tissues might explain the impaired containment of fungi and increased susceptibility to intestinal inflammation. CONCLUSION These results provide new insight into the role of CARD9 in neutrophil mitochondrial function and its involvement in intestinal inflammation, paving the way for new therapeutic strategies targeting neutrophils.
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Affiliation(s)
- Camille Danne
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France .,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Chloé Michaudel
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Jurate Skerniskyte
- CNRS, UPR 9002, Université de Strasbourg, Institut de Biologie Moléculaire et Cellulaire, Architecture et Réactivité de l'ARN, Strasbourg, France
| | - Julien Planchais
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Aurélie Magniez
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Allison Agus
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Marie-Laure Michel
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Bruno Lamas
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Gregory Da Costa
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Madeleine Spatz
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Cyriane Oeuvray
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Chloé Galbert
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Maxime Poirier
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Yazhou Wang
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Alexia Lapière
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Nathalie Rolhion
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Tatiana Ledent
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France
| | - Cédric Pionneau
- Sorbonne Université, INSERM, UMS PASS, Plateforme Postgénomique de la Pitié Salpêtrière (P3S), Paris, France
| | - Solenne Chardonnet
- Sorbonne Université, INSERM, UMS PASS, Plateforme Postgénomique de la Pitié Salpêtrière (P3S), Paris, France
| | - Floriant Bellvert
- MetaToul-MetaboHUB, National Infrastructure of Metabolomics & Fluxomics (ANR-11INBS-0010), 31077 Toulouse, France
| | - Edern Cahoreau
- MetaToul-MetaboHUB, National Infrastructure of Metabolomics & Fluxomics (ANR-11INBS-0010), 31077 Toulouse, France
| | - Amandine Rocher
- MetaToul-MetaboHUB, National Infrastructure of Metabolomics & Fluxomics (ANR-11INBS-0010), 31077 Toulouse, France
| | - Rafael Rose Arguello
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Carole Peyssonnaux
- Institut Cochin, INSERM, CNRS, Université de Paris, Laboratoire d'excellence GR-Ex, Paris, France
| | - Sabine Louis
- Institut Cochin, INSERM, CNRS, Université de Paris, Laboratoire d'excellence GR-Ex, Paris, France
| | - Mathias L Richard
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Philippe Langella
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Jamel El-Benna
- Université de Paris, INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Laboratoire d'excellence Inflamex, Faculté de Médecine Xavier Bichat, Paris, France
| | - Benoit Marteyn
- CNRS, UPR 9002, Université de Strasbourg, Institut de Biologie Moléculaire et Cellulaire, Architecture et Réactivité de l'ARN, Strasbourg, France.,University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France.,Institut Pasteur, Université de Paris, Inserm 1225 Unité de Pathogenèse des Infections Vasculaires, 28 rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Harry Sokol
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France .,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
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Lucke-Wold B, Diaz MJ, Song J, Batchu S, Root K, Patel K, Taneja K. The differential usage of molecular machinery in brain cancer patients with iron-enriched glioma environments. JOURNAL OF SURGERY AND SURGICAL RESEARCH 2022; 8:30-35. [PMID: 36349293 PMCID: PMC9639867 DOI: 10.17352/2455-2968.000150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Gliomas are neuroepithelial tumors in the brain or spinal cord that arise from glial or precursor cells and include astrocytomas, oligodendrogliomas, and ependymomas. They are the most common malignant primary central nervous system tumors, representing 75% of cases in adults and 24% of all cases of primary brain and CNS tumors [1,2].
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Affiliation(s)
| | | | - Joanna Song
- University of South Florida, Morsani College of Medicine, USA
| | | | - Kevin Root
- University of Florida, College of Medicine, USA
| | - Karan Patel
- Rowan University, Cooper Medical School, USA
| | - Kamil Taneja
- Stony Brook University, Renaissance School of Medicine, USA
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115
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Biodegradation of Dental Resin-Based Composite—A Potential Factor Affecting the Bonding Effect: A Narrative Review. Biomedicines 2022; 10:biomedicines10092313. [PMID: 36140414 PMCID: PMC9496159 DOI: 10.3390/biomedicines10092313] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/04/2022] [Accepted: 09/15/2022] [Indexed: 12/02/2022] Open
Abstract
In recent years, although resin composite has played an important role in the restoration of tooth defects, it still has several disadvantages, including being biodegraded by saliva, bacteria and other enzymes in the oral cavity, which may result in repair failure. This factor is not conducive to the long-term survival of the prosthesis in the mouth. In this article, we review the causes, influencing factors and prevention methods of resin biodegradation. Biodegradation is mainly caused by esterase in saliva and bacteria, which breaks the ester bond in resin and causes the release of monomers. The mechanical properties of the prosthesis can then be affected. Meanwhile, cathepsin and MMPs are activated on the bonding surface, which may decompose the dentin collagen. In addition, neutrophils and residual water on the bonding surface can also aggravate biodegradation. Currently, the primary methods to prevent biodegradation involve adding antibacterial agents to resin, inhibiting the activity of MMPs and enhancing the crosslinking of collagen fibers. All of the above indicates that in the preparation and adhesion of resin materials, attention should be paid to the influence of biodegradation to improve the prosthesis’s service life in the complex environment of the oral cavity.
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116
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Abdalkareem Jasim S, Jade Catalan Opulencia M, Alexis Ramírez-Coronel A, Kamal Abdelbasset W, Hasan Abed M, Markov A, Raheem Lateef Al-Awsi G, Azamatovich Shamsiev J, Thaeer Hammid A, Nader Shalaby M, Karampoor S, Mirzaei R. The emerging role of microbiota-derived short-chain fatty acids in immunometabolism. Int Immunopharmacol 2022; 110:108983. [PMID: 35750016 DOI: 10.1016/j.intimp.2022.108983] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/16/2022] [Accepted: 06/16/2022] [Indexed: 02/07/2023]
Abstract
The accumulating evidence revealed that microbiota plays a significant function in training, function, and the induction of host immunity. Once this interaction (immune system-microbiota) works correctly, it enables the production of protective responses against pathogens and keeps the regulatory pathways essential for maintaining tolerance to innocent antigens. This concept of immunity and metabolic activity redefines the realm of immunometabolism, paving the way for innovative therapeutic interventions to modulate immune cells through immune metabolic alterations. A body of evidence suggests that microbiota-derived metabolites, including short-chain fatty acids (SCFAs) such as butyrate, acetate, and propionate, play a key role in immune balance. SCFAs act on many cell types to regulate various vital biological processes, including host metabolism, intestinal function, and the immune system. Such SCFAs generated by gut bacteria also impact immunity, cellular function, and immune cell fate. This is a new concept of immune metabolism, and better knowledge about how lifestyle affects intestinal immunometabolism is crucial for preventing and treating disease. In this review article, we explicitly focus on the function of SCFAs in the metabolism of immune cells, especially macrophages, neutrophils, dendritic cells (DCs), B cells, T (Th) helper cells, and cytotoxic T cells (CTLs).
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Affiliation(s)
- Saade Abdalkareem Jasim
- Medical Laboratory Techniques Department, Al-maarif University College, Al-anbar-Ramadi, Iraq.
| | | | - Andrés Alexis Ramírez-Coronel
- Laboratory of Psychometrics, Comparative Psychology and Ethology (LABPPCE), Universidad Católica de Cuenca, Ecuador and Universidad CES, Medellín, Colombia, Cuenca, Ecuador.
| | - Walid Kamal Abdelbasset
- Department of Health and Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al Kharj, Saudi Arabia; Department of Physical Therapy, Kasr Al-Aini Hospital, Cairo University, Giza, Egypt.
| | - Murtadha Hasan Abed
- Department of Medical Laboratory, College of Health and Medical Technology, Al-Ayen University, Thi-Qar, Iraq.
| | - Alexander Markov
- Tyumen State Medical University, Tyumen, Russian Federation; Tyumen Industrial University, Tyumen, Russian Federation.
| | | | - Jamshid Azamatovich Shamsiev
- Department of Pediatric Surgery, Anesthesiology and Intensive Care, Samarkand State Medical Institute, Samarkand, Uzbekistan; Research scholar, Department of Scientific Affairs, Tashkent State Dental Institute, Makhtumkuli Street 103, Tashkent, 100047, Uzbekistan.
| | - Ali Thaeer Hammid
- Computer Engineering Techniques Department, Faculty of Information Technology, Imam Ja'afar Al-Sadiq University, Baghdad, Iraq.
| | - Mohammed Nader Shalaby
- Biological Sciences and Sports Health Department, Faculty of Physical Education, Suez Canal University, Egypt.
| | - Sajad Karampoor
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Rasoul Mirzaei
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
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Nadine S, Correia CR, Mano JF. Engineering immunomodulatory hydrogels and cell-laden systems towards bone regeneration. BIOMATERIALS ADVANCES 2022; 140:213058. [PMID: 35933955 DOI: 10.1016/j.bioadv.2022.213058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/27/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
The well-known synergetic interplay between the skeletal and immune systems has changed the design of advanced bone tissue engineering strategies. The immune system is essential during the bone lifetime, with macrophages playing multiple roles in bone healing and biomaterial integration. If in the past, the most valuable aspect of implants was to avoid immune responses of the host, nowadays, it is well-established how important are the crosstalks between immune cells and bone-engineered niches for an efficient regenerative process to occur. For that, it is essential to recapitulate the multiphenotypic cellular environment of bone tissue when designing new approaches. Indeed, the lack of osteoimmunomodulatory knowledge may be the explanation for the poor translation of biomaterials into clinical practice. Thus, smarter hydrogels incorporating immunomodulatory bioactive factors, stem cells, and immune cells are being proposed to develop a new generation of bone tissue engineering strategies. This review highlights the power of immune cells to upgrade the development of innovative engineered strategies, mainly focusing on orthopaedic and dental applications.
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Affiliation(s)
- Sara Nadine
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Clara R Correia
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - João F Mano
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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118
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Basic Analysis of the Cerebrospinal Fluid: An Important Framework for Laboratory Diagnostics of the Impairment of the Central Nervous System. Curr Issues Mol Biol 2022; 44:3666-3680. [PMID: 36005147 PMCID: PMC9406567 DOI: 10.3390/cimb44080251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/02/2022] [Accepted: 08/11/2022] [Indexed: 11/17/2022] Open
Abstract
Laboratory analysis of basic cerebrospinal fluid (CSF) parameters is considered as essential for any CSF evaluation. It can provide rapidly very valuable information about the status of the central nervous system (CNS). Our retrospective study evaluated parameters of basic CSF analysis in cases of either infectious or non-infectious CNS involvement. Neutrophils are effector cells of innate immunity. Predominance of neutrophils was found in 98.2% of patients with purulent inflammation in CNS. Lymphocytes are cellular substrate of adaptive immunity. We found their predominance in 94.8% of patients with multiple sclerosis (MS), 66.7% of patients with tick-borne encephalitis (TBE), 92.2% of patients with neuroborreliosis, 83.3% of patients with inflammatory response with oxidative burst of macrophages in CNS and 75.0% of patients with malignant infiltration of meninges (MIM). The simultaneous assessment of aerobic and anaerobic metabolism in CSF using the coefficient of energy balance (KEB) allows us to specify the type of inflammation in CNS. We found predominantly aerobic metabolism (KEB > 28.0) in 100.0% CSF of patients with normal CSF findings and in 92.8% CSF of patients with MS. Predominant faintly anaerobic metabolism (28.0 > KEB > 20.0) in CSF was found in 71.8% patients with TBE and in 64.7% patients with neuroborreliosis. Strong anaerobic metabolism (KEB < 10.0) was found in the CSF of 99.1% patients with purulent inflammation, 100.0% patients with inflammatory response with oxidative burst of macrophages and in 80.6% patients with MIM. Joint evaluation of basic CSF parameters provides sufficient information about the immune response in the CSF compartment for rapid and reliable diagnosis of CNS involvement.
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Streptococcus pneumoniae Rapidly Translocate from the Nasopharynx through the Cribriform Plate to Invade the Outer Meninges. mBio 2022; 13:e0102422. [PMID: 35924840 PMCID: PMC9426477 DOI: 10.1128/mbio.01024-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The entry routes and translocation mechanisms of microorganisms or particulate materials into the central nervous system remain obscure We report here that Streptococcus pneumoniae (pneumococcus), or polystyrene microspheres of similar size, appear in the meninges of the dorsal cortex of mice within minutes of inhaled delivery. Recovery of viable bacteria from dissected tissue and fluorescence microscopy show that up to at least 72 h, pneumococci and microspheres were predominantly found in the outer of the two meninges: the pachymeninx. No pneumococci were found in blood or cerebrospinal fluid. Intravital imaging through the skull, aligned with flow cytometry showed recruitment and activation of LysM+ cells in the dorsal pachymeninx at 5 and 10 hours following intranasal infection. Imaging of the cribriform plate suggested that both pneumococci and microspheres entered through the foramina via an inward flow of fluid connecting the nose to the pachymeninx. Our findings bring new insight into the varied mechanisms of pneumococcal invasion of the central nervous system, but they are also pertinent to the delivery of drugs to the brain and the entry of airborne particulate matter into the cranium.
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Signaling Pathways Associated with Chronic Wound Progression: A Systems Biology Approach. Antioxidants (Basel) 2022; 11:antiox11081506. [PMID: 36009225 PMCID: PMC9404828 DOI: 10.3390/antiox11081506] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 07/25/2022] [Accepted: 07/25/2022] [Indexed: 11/23/2022] Open
Abstract
Previously we have shown that several oxidative stress-driven pathways in cutaneous chronic wounds are dysregulated in the first 48 h post-wounding. Here, we performed an RNASeq analysis of tissues collected up to day 20 after wounding, when we have determined full chronicity is established. Weighted Gene Correlation Network Analysis was performed in R segregating the genes into 14 modules. Genes in the modules significantly correlated (p < 0.05) to early and full chronicity were used for pathway analysis using pathfindR. In early chronicity, we observed enrichment of several pathways. Dysregulation of Ephrin/Eph signaling leads to growth cone collapse and impairs neuronal regeneration. Adra2b and Adra2a overexpression in early and full chronicity, respectively, decreased cAMP production and impaired re-epithelialization and granulation tissue formation. Several pathways involving a Smooth-muscle-actin (Acta1) were also enriched with Acta1 overexpression contributing to impaired angiogenesis. During full chronicity, the ‘JAK-STAT’ pathway was suppressed undermining host defenses against infection. Wnt signaling was also suppressed, impairing re-epithelialization and granulation tissue formation. Biomarkers of cancer such as overexpression of SDC1 and constitutive activation of ErbB2/HER2 were also identified. In conclusion, we show that during progression to full chronicity, numerous signaling pathways are dysregulated, including some related to carcinogenesis, suggesting that chronic wounds behave much like cancer. Experimental verification in vivo could identify candidates for treatment of chronic wounds.
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de Vor L, Beudeker CR, Flier A, Scheepmaker LM, Aerts PC, Vijlbrief DC, Bekker MN, Beurskens FJ, van Kessel KPM, de Haas CJC, Rooijakkers SHM, van der Flier M. Monoclonal antibodies effectively potentiate complement activation and phagocytosis of Staphylococcus epidermidis in neonatal human plasma. Front Immunol 2022; 13:933251. [PMID: 35967335 PMCID: PMC9372458 DOI: 10.3389/fimmu.2022.933251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/29/2022] [Indexed: 12/12/2022] Open
Abstract
Central line associated bloodstream infections (CLABSI) with Staphylococcus epidermidis are a major cause of morbidity in neonates, who have an increased risk of infection because of their immature immune system. As especially preterm neonates suffer from antibody deficiency, clinical studies into preventive therapies have thus far focused on antibody supplementation with pooled intravenous immunoglobulins from healthy donors (IVIG) but with little success. Here we study the potential of monoclonal antibodies (mAbs) against S. epidermidis to induce phagocytic killing by human neutrophils. Nine different mAbs recognizing Staphylococcal surface components were cloned and expressed as human IgG1s. In binding assays, clones rF1, CR5133 and CR6453 showed the strongest binding to S. epidermidis ATCC14990 and CR5133 and CR6453 bound the majority of clinical isolates from neonatal sepsis (19 out of 20). To study the immune-activating potential of rF1, CR5133 and CR6453, bacteria were opsonized with mAbs in the presence or absence of complement. We observed that activation of the complement system is essential to induce efficient phagocytosis of S. epidermidis. Complement activation and phagocytic killing could be enhanced by Fc-mutations that improve IgG1 hexamerization on cellular surfaces. Finally, we studied the ability of the mAbs to activate complement in r-Hirudin neonatal plasma conditions. We show that classical pathway complement activity in plasma isolated from neonatal cord blood is comparable to adult levels. Furthermore, mAbs could greatly enhance phagocytosis of S. epidermidis in neonatal plasma. Altogether, our findings provide insights that are crucial for optimizing anti-S. epidermidis mAbs as prophylactic agents for neonatal CLABSI.
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Affiliation(s)
- Lisanne de Vor
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Coco R. Beudeker
- Department of Paediatric Infectious Diseases and Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Anne Flier
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Lisette M. Scheepmaker
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Piet C. Aerts
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Daniel C. Vijlbrief
- Department of Neonatology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Mireille N. Bekker
- Department of Obstetrics, University Medical Center Utrecht, Utrecht, Netherlands
| | | | - Kok P. M. van Kessel
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Carla J. C. de Haas
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands
| | | | - Michiel van der Flier
- Department of Paediatric Infectious Diseases and Immunology, University Medical Center Utrecht, Utrecht, Netherlands
- *Correspondence: Michiel van der Flier,
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Gil E, Venturini C, Stirling D, Turner C, Tezera LB, Ercoli G, Baker T, Best K, Brown JS, Noursadeghi M. Pericyte derived chemokines amplify neutrophil recruitment across the cerebrovascular endothelial barrier. Front Immunol 2022; 13:935798. [PMID: 35967327 PMCID: PMC9371542 DOI: 10.3389/fimmu.2022.935798] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
Excessive neutrophil extravasation can drive immunopathology, exemplified in pyogenic meningitis caused by Streptococcus pneumoniae infection. Insufficient knowledge of the mechanisms that amplify neutrophil extravasation has limited innovation in therapeutic targeting of neutrophil mediated pathology. Attention has focussed on neutrophil interactions with endothelia, but data from mouse models also point to a role for the underlying pericyte layer, as well as perivascular macrophages, the only other cell type found within the perivascular space in the cerebral microvasculature. We tested the hypothesis that human brain vascular pericytes (HBVP) contribute to neutrophil extravasation in a transwell model of the cerebral post-capillary venule. We show that pericytes augment endothelial barrier formation. In response to inflammatory cues, they significantly enhance neutrophil transmigration across the endothelial barrier, without increasing the permeability to small molecules. In our model, neither pericytes nor endothelia responded directly to bacterial stimulation. Instead, we show that paracrine signalling by multiple cytokines from monocyte derived macrophages drives transcriptional upregulation of multiple neutrophil chemokines by pericytes. Pericyte mediated amplification of neutrophil transmigration was independent of transcriptional responses by endothelia, but could be mediated by direct chemokine translocation across the endothelial barrier. Our data support a model in which microbial sensing by perivascular macrophages generates an inflammatory cascade where pericytes serve to amplify production of neutrophil chemokines that are translocated across the endothelial barrier to act directly on circulating neutrophils. In view of the striking redundancy in inflammatory cytokines that stimulate pericytes and in the neutrophil chemokines they produce, we propose that the mechanism of chemokine translocation may offer the most effective therapeutic target to reduce neutrophil mediated pathology in pyogenic meningitis.
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Affiliation(s)
- Eliza Gil
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Cristina Venturini
- Infection, Immunity and Inflammation Department, Institute for Child Health, University College London, London, United Kingdom
| | - David Stirling
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Carolin Turner
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Liku B. Tezera
- Division of Infection and Immunity, University College London, London, United Kingdom
- NIHR Biomedical Research Center, School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Giuseppe Ercoli
- Centre for Inflammation and Tissue Repair, Division of Medicine, University College London, London, United Kingdom
| | - Tina Baker
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Katharine Best
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Jeremy S. Brown
- Centre for Inflammation and Tissue Repair, Division of Medicine, University College London, London, United Kingdom
| | - Mahdad Noursadeghi
- Division of Infection and Immunity, University College London, London, United Kingdom
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Català C, Velasco-de Andrés M, Casadó-Llombart S, Leyton-Pereira A, Carrillo-Serradell L, Isamat M, Lozano F. Innate immune response to peritoneal bacterial infection. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2022; 371:43-61. [PMID: 35965000 DOI: 10.1016/bs.ircmb.2022.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Spontaneous and secondary peritoneal infections, mostly of bacterial origin, easily spread to cause severe sepsis. Cellular and humoral elements of the innate immune system are constitutively present in peritoneal cavity and omentum, and play an important role in peritonitis progression and resolution. This review will focus on the description of the anatomic characteristics of the peritoneal cavity and the composition and function of such innate immune elements under both steady-state and bacterial infection conditions. Potential innate immune-based therapeutic interventions in bacterial peritonitis alternative or adjunctive to classical antibiotic therapy will be briefly discussed.
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Affiliation(s)
- Cristina Català
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | | | - Sergi Casadó-Llombart
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | | | | | - Marcos Isamat
- Sepsia Therapeutics S.L. 08908 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Francisco Lozano
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Servei d'Immunologia, Centre de Diagnòstic Biomèdic (CDB), Hospital Clínic de Barcelona, Barcelona, Spain; Departament de Biomedicina, Facultat de Medicina, Universitat de Barcelona, Barcelona, Spain.
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Kang SH, Ham HY, Hong CW, Song DK. Glycine induces enhancement of bactericidal activity of neutrophils. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY 2022; 26:229-238. [PMID: 35766001 PMCID: PMC9247710 DOI: 10.4196/kjpp.2022.26.4.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/30/2022] [Accepted: 04/13/2022] [Indexed: 11/21/2022]
Abstract
Severe bacterial infections are frequently accompanied by depressed neutrophil functions. Thus, agents that increase the microbicidal activity of neutrophils could add to a direct antimicrobial therapy. Lysophosphatidylcholine augments neutrophil bactericidal activity via the glycine (Gly)/glycine receptor (GlyR) α2/TRPM2/p38 mitogen-activated protein kinase (MAPK) pathway. However, the direct effect of glycine on neutrophil bactericidal activity was not reported. In this study, the effect of glycine on neutrophil bactericidal activity was examined. Glycine augmented bactericidal activity of human neutrophils (EC50 = 238 μM) in a strychnine (a GlyR antagonist)-sensitive manner. Glycine augmented bacterial clearance in mice, which was also blocked by strychnine (0.4 mg/kg, s.c.). Glycine enhanced NADPH oxidase-mediated reactive oxygen species (ROS) production and TRPM2-mediated [Ca2+]i increase in neutrophils that had taken up E. coli. Glycine augmented Lucifer yellow uptake (fluid-phase pinocytosis) and azurophil granule-phagosome fusion in neutrophils that had taken up E. coli in an SB203580 (a p38 MAPK inhibitor)-sensitive manner. These findings indicate that glycine augments neutrophil microbicidal activity by enhancing azurophil granule-phagosome fusion via the GlyRα2/ROS/calcium/p38 MAPK pathway. We suggest that glycine could be a useful agent for increasing neutrophil bacterial clearance.
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Affiliation(s)
- Shin-Hae Kang
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon 24252, Korea
| | - Hwa-Yong Ham
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon 24252, Korea
| | - Chang-Won Hong
- Department of Physiology, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Dong-Keun Song
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon 24252, Korea
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Lu X, Harman M, Todd Heniford B, Augenstein V, McIver B, Bridges W. Analyzing material changes consistent with degradation of explanted polymeric hernia mesh related to clinical characteristics. Surg Endosc 2022; 36:5121-5135. [PMID: 35257210 PMCID: PMC10851311 DOI: 10.1007/s00464-021-08882-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/16/2021] [Indexed: 10/18/2022]
Abstract
BACKGROUND Proposed mechanisms that potentially contribute to polypropylene mesh degradation after in vivo exposure include oxidizing species and mechanical strains induced by normal healing, tissue integration, muscle contraction, and the immediate and chronic inflammatory responses. METHODS This study explores these potential degradation mechanisms using 63 mesh implants retrieved from patients after a median implantation time of 24 months following hernia repair surgery (mesh explants) and analysis of multivariate associations between the material changes and clinical characteristics. Specifically, polypropylene mesh degradation was characterized in terms of material changes in surface oxidation, crystallinity and mechanical properties, and clinical characteristics included mesh placement location, medical history and mesh selection. RESULTS Compared to pristine control samples, subsets of mesh explants had evidence of surface oxidation, altered crystallinity, or changed mechanical properties. Using multivariate statistical approach to control for clinical characteristics, infection was a significant factor affecting changes in mesh stiffness and mesh class was a significant factor affecting polypropylene crystallinity changes. CONCLUSIONS Highly variable in vivo conditions expose mesh to mechanisms that alter clinical outcomes and potentially contribute to mesh degradation. These PP mesh explants after 0.5 to 13 years in vivo had measurable changes in surface chemistry, crystallinity and mechanical properties, with significant trends associated with factors of mesh placement, mesh class, and infection.
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Affiliation(s)
- Xinyue Lu
- Department of Bioengineering, Clemson University, Clemson, SC, 29634, USA
| | - Melinda Harman
- Department of Bioengineering, Clemson University, Clemson, SC, 29634, USA.
| | - B Todd Heniford
- Gastrointestinal and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, NC, 28204, USA
| | - Vedra Augenstein
- Gastrointestinal and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, NC, 28204, USA
| | - Brittney McIver
- Department of Bioengineering, Clemson University, Clemson, SC, 29634, USA
| | - William Bridges
- Department of Mathematical Sciences, Clemson University, Clemson, SC, 29634, USA
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Strøbech JE, Giuriatti P, Erler JT. NEUTROPHIL INFLUENCE ON EXTRACELLULAR MATRIX IN CANCER PROGRESSION. Am J Physiol Cell Physiol 2022; 323:C486-C493. [PMID: 35759433 DOI: 10.1152/ajpcell.00122.2022] [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: 11/22/2022]
Abstract
1 in 3 persons will develop cancer in their lifetime and the majority of these patients will die from the spread of their cancer through their body - a process known as metastasis. Metastasis is strongly regulated by the tumor microenvironment (TME) comprised of cellular and non-cellular components. In this review, we will focus on the role of neutrophils regulating the extracellular matrix (ECM), enabling ECM remodeling and cancer progression. In particular, we highlight the role of neutrophil-secreted proteases (NSP) and how these promote metastasis.
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Affiliation(s)
- Jan Erik Strøbech
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Pietro Giuriatti
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Janine T Erler
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
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Szczepan M, Llorián-Salvador M, Chen M, Xu H. Immune Cells in Subretinal Wound Healing and Fibrosis. Front Cell Neurosci 2022; 16:916719. [PMID: 35755781 PMCID: PMC9226489 DOI: 10.3389/fncel.2022.916719] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 05/16/2022] [Indexed: 11/22/2022] Open
Abstract
The subretinal space is devoid of any immune cells under normal conditions and is an immune privileged site. When photoreceptors and/or retinal pigment epithelial cells suffer from an injury, a wound healing process will be initiated. Retinal microglia and the complement system, as the first line of retinal defense, are activated to participate in the wound healing process. If the injury is severe or persists for a prolonged period, they may fail to heal the damage and circulating immune cells will be summoned leading to chronic inflammation and abnormal wound healing, i.e., subretinal or intraretinal fibrosis, a sight-threatening condition frequently observed in rhematogenous retinal detachment, age-related macular degeneration and recurrent uveoretinitis. Here, we discussed the principles of subretinal wound healing with a strong focus on the conditions whereby the damage is beyond the healing capacity of the retinal defense system and highlighted the roles of circulating immune cells in subretinal wound healing and fibrosis.
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Affiliation(s)
- Manon Szczepan
- The Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queen’s University Belfast, Belfast, United Kingdom
| | - María Llorián-Salvador
- The Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queen’s University Belfast, Belfast, United Kingdom
| | - Mei Chen
- The Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queen’s University Belfast, Belfast, United Kingdom
| | - Heping Xu
- The Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queen’s University Belfast, Belfast, United Kingdom,Aier Institute of Optometry and Vision Science, Changsha, China,*Correspondence: Heping Xu,
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Liew YJM, Ibrahim PAS, Ong HM, Chong CN, Tan CT, Schee JP, Gómez Román R, Cherian NG, Wong WF, Chang LY. The Immunobiology of Nipah Virus. Microorganisms 2022; 10:microorganisms10061162. [PMID: 35744680 PMCID: PMC9228579 DOI: 10.3390/microorganisms10061162] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/31/2022] [Accepted: 06/03/2022] [Indexed: 12/23/2022] Open
Abstract
Nipah virus (NiV) is a highly lethal zoonotic paramyxovirus that emerged in Malaysia in 1998. It is a human pathogen capable of causing severe respiratory infection and encephalitis. The natural reservoir of NiV, Pteropus fruit bats, remains a continuous virus source for future outbreaks, although infection in the bats is largely asymptomatic. NiV provokes serious disease in various mammalian species. In the recent human NiV outbreaks in Bangladesh and India, both bats-to-human and human-to-human transmissions have been observed. NiV has been demonstrated to interfere with the innate immune response via interferon type I signaling, promoting viral dissemination and preventing antiviral response. Studies of humoral immunity in infected NiV patients and animal models have shown that NiV-specific antibodies were produced upon infection and were protective. Studies on cellular immunity response to NiV infection in human and animal models also found that the adaptive immune response, specifically CD4+ and CD8+ T cells, was stimulated upon NiV infection. The experimental vaccines and therapeutic strategies developed have provided insights into the immunological requirements for the development of successful medical countermeasures against NiV. This review summarizes the current understanding of NiV pathogenesis and innate and adaptive immune responses induced upon infection.
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Affiliation(s)
- Yvonne Jing Mei Liew
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (Y.J.M.L.); (P.A.S.I.); (H.M.O.); (C.N.C.); (W.F.W.)
- Deputy Vice Chancellor’s Office (Research & Innovation), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Puteri Ainaa S. Ibrahim
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (Y.J.M.L.); (P.A.S.I.); (H.M.O.); (C.N.C.); (W.F.W.)
| | - Hui Ming Ong
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (Y.J.M.L.); (P.A.S.I.); (H.M.O.); (C.N.C.); (W.F.W.)
| | - Chee Ning Chong
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (Y.J.M.L.); (P.A.S.I.); (H.M.O.); (C.N.C.); (W.F.W.)
| | - Chong Tin Tan
- Division of Neurology, Department of Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (C.T.T.); (J.P.S.)
| | - Jie Ping Schee
- Division of Neurology, Department of Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (C.T.T.); (J.P.S.)
| | - Raúl Gómez Román
- Vaccine Research and Development, Coalition for Epidemic Preparedness Innovation (CEPI), Askekroken 11, 0277 Oslo, Norway; (R.G.R.); (N.G.C.)
| | - Neil George Cherian
- Vaccine Research and Development, Coalition for Epidemic Preparedness Innovation (CEPI), Askekroken 11, 0277 Oslo, Norway; (R.G.R.); (N.G.C.)
| | - Won Fen Wong
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (Y.J.M.L.); (P.A.S.I.); (H.M.O.); (C.N.C.); (W.F.W.)
| | - Li-Yen Chang
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (Y.J.M.L.); (P.A.S.I.); (H.M.O.); (C.N.C.); (W.F.W.)
- Correspondence:
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Stapleton EM, Keck K, Windisch R, Stroik MR, Thurman AL, Zabner J, Thornell IM, Pezzulo AA, Klesney-Tait J, Comellas AP. Vitamin D-mediated effects on airway innate immunity in vitro. PLoS One 2022; 17:e0269647. [PMID: 35666753 PMCID: PMC9170100 DOI: 10.1371/journal.pone.0269647] [Citation(s) in RCA: 4] [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: 03/03/2022] [Accepted: 05/24/2022] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Vitamin D supplementation has been suggested to enhance immunity during respiratory infection season. We tested the effect of active vitamin D (calcitriol) supplementation on key airway innate immune mechanisms in vitro. METHODS Primary human airway epithelial cells (hAECs) grown at the air liquid interface were supplemented with 10-7 M calcitriol for 24 hours (or a time course) and their antimicrobial airway surface liquid (ASL) was tested for pH, viscoscity, and antibacterial and antiviral properties. We also tested hAEC ciliary beat frequency (CBF). Next, we assessed alterations to hAEC gene expression using RNA sequencing, and based on results, we measured neutrophil migration across hAECs. RESULTS Calcitriol supplementation enhanced ASL bacterial killing of Staphylococcus aureus (p = 0.02) but did not enhance its antiviral activity against 229E-CoV. It had no effect on ASL pH or viscosity at three timepoints. Lastly, it did not affect hAEC CBF or neutrophil migration, although there was a trend of enhanced migration in the presence of a neutrophil chemokine (p = 0.09). Supplementation significantly altered hAEC gene expression, primarily of AMP-related genes including CAMP and TREM1. CONCLUSION While vitamin D supplementation did not have effects on many airway innate immune mechanisms, it may provide a useful tool to resolve respiratory bacterial infections.
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Affiliation(s)
- Emma M. Stapleton
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
| | - Kathy Keck
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
| | - Robert Windisch
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
| | - Mallory R. Stroik
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
| | - Andrew L. Thurman
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
| | - Joseph Zabner
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
| | - Ian M. Thornell
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
| | - Alejandro A. Pezzulo
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
| | - Julia Klesney-Tait
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
| | - Alejandro P. Comellas
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
- * E-mail:
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130
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Elangovan G, Mello-Neto JM, Tadakamadla SK, Reher P, Figueredo CMS. A systematic review on neutrophils interactions with titanium and zirconia surfaces: Evidence from in vitro studies. Clin Exp Dent Res 2022; 8:950-958. [PMID: 35535662 PMCID: PMC9382042 DOI: 10.1002/cre2.582] [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: 11/08/2021] [Revised: 04/05/2022] [Accepted: 04/19/2022] [Indexed: 01/04/2023] Open
Abstract
Objectives This systematic review aimed to assess in vitro studies that evaluated neutrophil interactions with different roughness levels in titanium and zirconia implant surfaces. Material and Methods An electronic search for literature was conducted on PubMed, Embase, Scopus, and Web of Science and a total of 14 studies were included. Neutrophil responses were assessed based on adhesion, cell number, surface coverage, cell structure, cytokine secretion, reactive oxygen species (ROS) production, neutrophil activation, receptor expression, and neutrophil extracellular traps (NETs) release. The method of assessing the risk of bias was done using the toxicological data reliability assessment tool (TOXRTOOL). Results Ten studies have identified a significant increase in neutrophil functions, such as surface coverage, cell adhesion, ROS production, and NETs released when interacting with rough titanium surfaces. Moreover, neutrophil interaction with rough–hydrophilic surfaces seems to produce less proinflammatory cytokines and ROS when compared to naive smooth and rough titanium surfaces. Regarding membrane receptor expression, two studies have reported that the FcγIII receptor (CD16) is responsible for initial neutrophil adhesion to hydrophilic titanium surfaces. Only one study compared neutrophil interaction with titanium alloy and zirconia toughened alumina surfaces and reported no significant differences in neutrophil cell count, activation, receptor expression, and death. Conclusions There are not enough studies to conclude neutrophil interactions with titanium and zirconia surfaces. However, different topographic modifications such as roughness and hydrophilicity might influence neutrophil interactions with titanium implant surfaces.
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Affiliation(s)
- Gayathiri Elangovan
- School of Medicine and Dentistry, Griffith University, Southport, Queensland, Australia
| | - Joao M Mello-Neto
- School of Medicine and Dentistry, Griffith University, Southport, Queensland, Australia
| | - Santosh K Tadakamadla
- School of Medicine and Dentistry, Griffith University, Southport, Queensland, Australia
| | - Peter Reher
- School of Medicine and Dentistry, Griffith University, Southport, Queensland, Australia
| | - Carlos Marcelo S Figueredo
- School of Medicine and Dentistry, Griffith University, Southport, Queensland, Australia.,Affiliated to research, Department of Dental Medicine, Karolinska Institutet, Solna, Sweden
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131
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Clark D, Radaic A, Kapila Y. Cellular Mechanisms of Inflammaging and Periodontal Disease. FRONTIERS IN DENTAL MEDICINE 2022; 3:844865. [PMID: 36540609 PMCID: PMC9762858 DOI: 10.3389/fdmed.2022.844865] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023] Open
Abstract
Increased age is associated with an increased prevalence of chronic inflammatory diseases and conditions. The term inflammaging has been used to describe the age-related changes to the immune response that results in a chronic and elevated inflammatory state that contributes, in part, to the increased prevalence of disease in older adults. Periodontal disease is a chronic inflammatory condition that affects the periodontium and increases in prevalence with age. To better understand the mechanisms that drive inflammaging, a broad body of research has focused on the pathological age-related changes to key cellular regulators of the immune response. This review will focus on our current understanding of how certain immune cells (neutrophils, macrophages, T cells) change with age and how such changes contribute to inflammaging and more specifically to periodontal disease.
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Affiliation(s)
- Daniel Clark
- Department of Periodontics and Preventive Dentistry, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Allan Radaic
- Orofacial Sciences Department, School of Dentistry, University of California, San Francisco (UCSF), San Francisco, CA, United States
| | - Yvonne Kapila
- Orofacial Sciences Department, School of Dentistry, University of California, San Francisco (UCSF), San Francisco, CA, United States
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132
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Ham HY, Kang SH, Song DK. Lysophosphatidylcholine induces azurophil granule translocation via Rho/Rho kinase/F-actin polymerization in human neutrophils. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY 2022; 26:175-182. [PMID: 35477545 PMCID: PMC9046897 DOI: 10.4196/kjpp.2022.26.3.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 01/03/2022] [Accepted: 02/04/2022] [Indexed: 11/18/2022]
Abstract
Translocation of azurophil granules is pivotal for bactericidal activity of neutrophils, the first-line defense cells against pathogens. Previously, we reported that lysophosphatidylcholine (LPC), an endogenous lipid, enhances bactericidal activity of human neutrophils via increasing translocation of azurophil granules. However, the precise mechanism of LPC-induced azurophil granule translocation was not fully understood. Treatment of neutrophil with LPC significantly increased CD63 (an azurophil granule marker) surface expression. Interestingly, cytochalasin B, an inhibitor of action polymerization, blocked LPC-induced CD63 surface expression. LPC increased F-actin polymerization. LPC-induced CD63 surface expression was inhibited by both a Rho specific inhibitor, Tat-C3 exoenzyme, and a Rho kinase (ROCK) inhibitor, Y27632 which also inhibited LPC-induced F-actin polymerization. LPC induced Rho-GTP activation. NSC23766, a Rac inhibitor, however, did not affect LPC-induced CD63 surface expression. Theses results suggest a novel regulatory mechanism for azurophil granule translocation where LPC induces translocation of azurophil granules via Rho/ROCK/F-actin polymerization pathway.
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Affiliation(s)
- Hwa-Yong Ham
- Department of Pharmacology, Hallym University College of Medicine, Chuncheon 24252, Korea
| | - Shin-Hae Kang
- Department of Pharmacology, Hallym University College of Medicine, Chuncheon 24252, Korea
| | - Dong-Keun Song
- Department of Pharmacology, Hallym University College of Medicine, Chuncheon 24252, Korea
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133
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Lv M, Qiu X, Wang J, Wang Y, Liu Q, Zhou H, Zhang A, Wang X. Regulation of Il-2 on the expression of granzyme B- and perforin-like genes and its functional implication in grass carp peripheral blood neutrophils. FISH & SHELLFISH IMMUNOLOGY 2022; 124:472-479. [PMID: 35483596 DOI: 10.1016/j.fsi.2022.04.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/18/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Granzyme (Gzm) B and perforin, both as cytotoxic proteins, can collaborate to induce the death of target cells as well as the microbes. They were originally discovered in cytotoxic T lymphocytes (CTLs) and natural killer (NK) cells and confer the cytotoxic activities of these cells. In the present study, the coding sequences of a granzyme b-like (gcgzmbl) and a perforin-like (gcprfl) genes were cloned from grass carp (Ctenopharyngodon idellus) and their specific antibodies were subsequently prepared and validated. The mRNA and protein expression of these two cytotoxic proteins in grass carp peripheral blood neutrophils was demonstrated by quantitative PCR (qPCR) and immunofluorescence staining, respectively. In the same cell model, expression of gcGzmbl and gcPrfl was stimulated by grass carp interleukin (Il)-2 in a dose- and time-dependent manners and Erk, NF-κB and Stat5 pathways were found to be involved in the regulation of Il-2 on the genes' expression. Additionally, glycolysis was proved to play a role in the stimulation of Il-2 on gcGzmbl and gcPrfl expression in peripheral blood neutrophils. As combating the invading microorganisms is one of the main functions of neutrophils, the roles of gcGzmbl and gcPrfl in the anti-bacterial activities of grass carp peripheral blood neutrophils were explored. Results showed that immunoneutralization of gcGzmbl or gcPrfl significantly attenuated the antimicrobial abilities of the neutrophils enhanced by Il-2. These findings shed a light on the expression, regulation and functions of granzyme B- and perforin-like proteins in fish peripheral blood neutrophils and enrich the understanding of Il-2 function in fish innate immunity.
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Affiliation(s)
- Mengyuan Lv
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, PR China
| | - Xingyang Qiu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, PR China
| | - Jiankang Wang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, PR China
| | - Yawen Wang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, PR China
| | - Qingqing Liu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, PR China
| | - Hong Zhou
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, PR China
| | - Anying Zhang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, PR China
| | - Xinyan Wang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, PR China.
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134
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Cuppen JJM, Gradinaru C, Raap-van Sleuwen BE, de Wit ACE, van der Vegt TAAJ, Savelkoul HFJ. LF-EMF Compound Block Type Signal Activates Human Neutrophilic Granulocytes In Vivo. Bioelectromagnetics 2022; 43:309-316. [PMID: 35481557 PMCID: PMC9324799 DOI: 10.1002/bem.22406] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/06/2022] [Accepted: 04/13/2022] [Indexed: 11/07/2022]
Abstract
This research aims to demonstrate in a randomized, placebo-controlled crossover design study that a nominal 5 μT low-frequency electromagnetic field (LF-EMF) signal for 30 min activates neutrophils in vivo in humans. Granularity of neutrophils was measured in blood samples of healthy human volunteers (n = 32) taken before and after exposure for both the exposure and control sessions. A significant decrease in the granularity, indicative of neutrophil activation, was observed both in the exposure measurements and the exposure minus control measurements. Earlier EMF publications show immune function increase in isolated cells and more effective immune responses in animals with infections. This result, therefore, supports the thesis that the exposure can activate the innate immune system in humans, speed up the innate immune response, and may have potential beneficial effects in infectious disease. © 2022 Bioelectromagnetics Society.
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Affiliation(s)
- Jan J M Cuppen
- Umani Medical BV, Waalre, The Netherlands.,Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, The Netherlands
| | | | | | | | | | - Huub F J Savelkoul
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, The Netherlands
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135
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Dong C, Hu X, Tripathi AS. A brief review of vitamin D as a potential target for the regulation of blood glucose and inflammation in diabetes-associated periodontitis. Mol Cell Biochem 2022; 477:2257-2268. [PMID: 35478388 DOI: 10.1007/s11010-022-04445-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/08/2022] [Indexed: 11/30/2022]
Abstract
Diabetes is a metabolic disorder associated with various complications, including periodontitis. The risk of periodontitis is increased in patients with diabetes, while vitamin D deficiency is associated with both diabetes and periodontitis. Thus, there is a need to identify the molecular effects of vitamin D on the regulation of inflammation and glucose in diabetes-associated periodontitis. The Web of Science, Scopus, and PubMed databases were searched for studies of the molecular effects of vitamin D. Molecular effects were reportedly mediated by salivary secretions, interactions of advanced glycation end products (AGEs) with receptors of AGEs (RAGEs), cytokines, and oxidative stress pathways linking diabetes with periodontitis. Vitamin D supplementation attenuates inflammation in diabetes-associated periodontitis by reducing the levels of inflammatory cytokines and numbers of immune cells; it also has antibacterial effects. Vitamin D reduces cytokine levels through regulation of the extracellular signal-related kinase 1/2 and Toll-like receptor 1/2 pathways, along with the suppression of interleukin expression. Glucose homeostasis is altered in diabetes either because of reduced insulin production or decreased insulin sensitivity. These vitamin D-related alterations of glucoregulatory factors may contribute to hyperglycaemia; hyperglycaemia may also lead to alterations of glucoregulatory factors. This review discusses the pathways involved in glucose regulation and effects of vitamin D supplementation on glucose regulation. Further studies are needed to characterise the effects of vitamin D on diabetes-associated periodontitis.
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Affiliation(s)
- Cheng Dong
- Department of Stomatology, The People's Hospital of Beilun District, Ningbo, 315800, China
| | - Xuzhi Hu
- Department of Stomatology, The People's Hospital of Beilun District, Ningbo, 315800, China.
| | - Alok Shiomurti Tripathi
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University, Noida, U.P., India
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136
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Neutrophil extracellular traps mediate severe lung injury induced by influenza A virus H1N1 in mice coinfected with Staphylococcus aureus. Microb Pathog 2022; 166:105558. [PMID: 35487479 DOI: 10.1016/j.micpath.2022.105558] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/24/2022] [Accepted: 04/24/2022] [Indexed: 11/21/2022]
Abstract
Influenza virus and bacterial infection contributed to massive morbidity and mortality. However, the underlying mechanisms were poorly understood. A coinfected model was generating by using sublethal doses of influenza A virus H1N1 A/FM/1/47(H1N1) and methicillin-resistant Staphylococcus aureus (MRSA). Further, the model was optimized to achieve the highest peak of mortality initiated by intranasal infection with 0.2LD50 H1N1 and 0.16LD50 MRSA at 3 days interval. Excessive neutrophil recruitment, accompanied by high levels of inflammatory cytokines and chemokines, and increased bacterial and viral load were observed in coinfected mice. Under the inflammatory environments triggered by H1N1 and MRSA, the excessive neutrophil recruitment led to the formation of neutrophil extracellular traps (NETs), associated with severe inflammation and vascular endothelial injury. Importantly, the severity of lung injury could be alleviated by treatment with DNase I or a selective neutrophil elastase inhibitor (NEi). Therefore, our data suggested that excessive neutrophil recruitment and NETs formation contributed to severe inflammation and acute lung injury in coinfected animals.
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137
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Pereira JM, Xu S, Leong JM, Sousa S. The Yin and Yang of Pneumolysin During Pneumococcal Infection. Front Immunol 2022; 13:878244. [PMID: 35529870 PMCID: PMC9074694 DOI: 10.3389/fimmu.2022.878244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/23/2022] [Indexed: 12/15/2022] Open
Abstract
Pneumolysin (PLY) is a pore-forming toxin produced by the human pathobiont Streptococcus pneumoniae, the major cause of pneumonia worldwide. PLY, a key pneumococcal virulence factor, can form transmembrane pores in host cells, disrupting plasma membrane integrity and deregulating cellular homeostasis. At lytic concentrations, PLY causes cell death. At sub-lytic concentrations, PLY triggers host cell survival pathways that cooperate to reseal the damaged plasma membrane and restore cell homeostasis. While PLY is generally considered a pivotal factor promoting S. pneumoniae colonization and survival, it is also a powerful trigger of the innate and adaptive host immune response against bacterial infection. The dichotomy of PLY as both a key bacterial virulence factor and a trigger for host immune modulation allows the toxin to display both "Yin" and "Yang" properties during infection, promoting disease by membrane perforation and activating inflammatory pathways, while also mitigating damage by triggering host cell repair and initiating anti-inflammatory responses. Due to its cytolytic activity and diverse immunomodulatory properties, PLY is integral to every stage of S. pneumoniae pathogenesis and may tip the balance towards either the pathogen or the host depending on the context of infection.
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Affiliation(s)
- Joana M. Pereira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Molecular and Cellular (MC) Biology PhD Program, ICBAS - Instituto de Ciência Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Shuying Xu
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA, United States
- Graduate Program in Immunology, Tufts Graduate School of Biomedical Sciences, Boston, MA, United States
| | - John M. Leong
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA, United States
| | - Sandra Sousa
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
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138
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Cirino G, Szabo C, Papapetropoulos A. Physiological roles of hydrogen sulfide in mammalian cells, tissues and organs. Physiol Rev 2022; 103:31-276. [DOI: 10.1152/physrev.00028.2021] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
H2S belongs to the class of molecules known as gasotransmitters, which also includes nitric oxide (NO) and carbon monoxide (CO). Three enzymes are recognized as endogenous sources of H2S in various cells and tissues: cystathionine g-lyase (CSE), cystathionine β-synthase (CBS) and 3-mercaptopyruvate sulfurtransferase (3-MST). The current article reviews the regulation of these enzymes as well as the pathways of their enzymatic and non-enzymatic degradation and elimination. The multiple interactions of H2S with other labile endogenous molecules (e.g. NO) and reactive oxygen species are also outlined. The various biological targets and signaling pathways are discussed, with special reference to H2S and oxidative posttranscriptional modification of proteins, the effect of H2S on channels and intracellular second messenger pathways, the regulation of gene transcription and translation and the regulation of cellular bioenergetics and metabolism. The pharmacological and molecular tools currently available to study H2S physiology are also reviewed, including their utility and limitations. In subsequent sections, the role of H2S in the regulation of various physiological and cellular functions is reviewed. The physiological role of H2S in various cell types and organ systems are overviewed. Finally, the role of H2S in the regulation of various organ functions is discussed as well as the characteristic bell-shaped biphasic effects of H2S. In addition, key pathophysiological aspects, debated areas, and future research and translational areas are identified A wide array of significant roles of H2S in the physiological regulation of all organ functions emerges from this review.
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Affiliation(s)
- Giuseppe Cirino
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Csaba Szabo
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Switzerland
| | - Andreas Papapetropoulos
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece & Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation of the Academy of Athens, Greece
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139
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Huang Z, Zhang H, Fu X, Han L, Zhang H, Zhang L, Zhao J, Xiao D, Li H, Li P. Autophagy-driven neutrophil extracellular traps: The dawn of sepsis. Pathol Res Pract 2022; 234:153896. [PMID: 35462228 DOI: 10.1016/j.prp.2022.153896] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 03/28/2022] [Accepted: 04/11/2022] [Indexed: 12/12/2022]
Abstract
Sepsis is a systemic inflammatory syndrome caused by infection disorders. The core mechanism of sepsis is immune dysfunction. Neutrophils are the most abundant circulating white blood cells, which play a crucial role in mediating the innate immune response. Previous studies have shown that an effective way to treat sepsis is through the regulation of neutrophil functions. Autophagy, a highly conserved degradation process, is responsible for removing denatured proteins or damaged organelles within cells and protecting cells from external stimuli. It is a key homeostasis process that promotes neutrophil function and differentiation. Autophagy has been shown to be closely associated with inflammation and immunity. Neutrophils, the first line of innate immunity, migrate to inflammatory sites upon their activation. Neutrophil-mediated autophagy may participate in the clinical course of sepsis. In this review, we summarized and analyzed the latest research findings on the changes in neutrophil external traps during sepsis, the regulatory role of autophagy in neutrophil, and the potential application of autophagy-driven NETs in sepsis, so as to guide clinical treatment of sepsis.
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Affiliation(s)
- Zhenzhen Huang
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Haodong Zhang
- Department of Hypertension Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Xu Fu
- Key Laboratory of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Li Han
- Key Laboratory of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Haidan Zhang
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Ling Zhang
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Jing Zhao
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Danyang Xiao
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Hongyao Li
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Peiwu Li
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China.
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140
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Ai D, Xing Y, Zhang Q, Wang Y, Liu X, Liu G, Xia LC. Joint Analysis of Microbial and Immune Cell Abundance in Liver Cancer Tissue Using a Gene Expression Profile Deconvolution Algorithm Combined With Foreign Read Remapping. Front Immunol 2022; 13:853213. [PMID: 35493464 PMCID: PMC9047545 DOI: 10.3389/fimmu.2022.853213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/07/2022] [Indexed: 11/21/2022] Open
Abstract
Recent transcriptomics and metagenomics studies showed that tissue-infiltrating immune cells and bacteria interact with cancer cells to shape oncogenesis. This interaction and its effects remain to be elucidated. However, it is technically difficult to co-quantify immune cells and bacteria in their respective microenvironments. To address this challenge, we herein report the development of a complete a bioinformatics pipeline, which accurately estimates the number of infiltrating immune cells using a novel Particle Swarming Optimized Support Vector Regression (PSO-SVR) algorithm, and the number of infiltrating bacterial using foreign read remapping and the GRAMMy algorithm. It also performs systematic differential abundance analyses between tumor-normal pairs. We applied the pipeline to a collection of paired liver cancer tumor and normal samples, and we identified bacteria and immune cell species that were significantly different between tissues in terms of health status. Our analysis showed that this dual model of microbial and immune cell abundance had a better differentiation (84%) between healthy and diseased tissue. Caldatribacterium sp., Acidaminococcaceae sp., Planctopirus sp., Desulfobulbaceae sp.,Nocardia farcinica as well as regulatory T cells (Tregs), resting mast cells, monocytes, M2 macrophases, neutrophils were identified as significantly different (Mann Whitney Test, FDR< 0.05). Our open-source software is freely available from GitHub at https://github.com/gutmicrobes/PSO-SVR.git.
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Affiliation(s)
- Dongmei Ai
- Basic Experimental Center of Natural Science, University of Science and Technology Beijing, Beijing, China
- *Correspondence: Dongmei Ai, ; Li C. Xia,
| | - Yonglian Xing
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, China
| | - Qingchuan Zhang
- National Engineering Laboratory for Agri-Product Quality Traceability, Beijing Technology and Business University, Beijing, China
| | - Yishu Wang
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, China
| | - Xiuqin Liu
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, China
| | - Gang Liu
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, China
| | - Li C. Xia
- School of Mathematics, South China University of Technology, Guangzhou, China
- *Correspondence: Dongmei Ai, ; Li C. Xia,
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141
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Neutrophil Functional Heterogeneity and Implications for Viral Infections and Treatments. Cells 2022; 11:cells11081322. [PMID: 35456003 PMCID: PMC9025666 DOI: 10.3390/cells11081322] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 12/15/2022] Open
Abstract
Evidence suggests that neutrophils exert specialized effector functions during infection and inflammation, and that these cells can affect the duration, severity, and outcome of the infection. These functions are related to variations in phenotypes that have implications in immunoregulation during viral infections. Although the complexity of the heterogeneity of neutrophils is still in the process of being uncovered, evidence indicates that they display phenotypes and functions that can assist in viral clearance or augment and amplify the immunopathology of viruses. Therefore, deciphering and understanding neutrophil subsets and their polarization in viral infections is of importance. In this review, the different phenotypes of neutrophils and the roles they play in viral infections are discussed. We also examine the possible ways to target neutrophil subsets during viral infections as potential anti-viral treatments.
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142
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Cheng H, Guo P, Su T, Jiang C, Zhu Z, Wei W, Zhang L, Wang Q. G protein-coupled receptor kinase type 2 and β-arrestin2: Key players in immune cell functions and inflammation. Cell Signal 2022; 95:110337. [DOI: 10.1016/j.cellsig.2022.110337] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/15/2022] [Accepted: 04/15/2022] [Indexed: 02/07/2023]
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143
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Thirugnanasambandham I, Radhakrishnan A, Kuppusamy G, Kumar Singh S, Dua K. PEPTIDYLARGININE DEIMINASE-4: MEDICO-FORMULATIVE STRATEGY TOWARDS MANAGEMENT OF RHEUMATOID ARTHRITIS. Biochem Pharmacol 2022; 200:115040. [DOI: 10.1016/j.bcp.2022.115040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/08/2022] [Accepted: 04/08/2022] [Indexed: 12/15/2022]
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144
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Specific NLRP3 Inflammasome Assembling and Regulation in Neutrophils: Relevance in Inflammatory and Infectious Diseases. Cells 2022; 11:cells11071188. [PMID: 35406754 PMCID: PMC8997905 DOI: 10.3390/cells11071188] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/27/2022] [Accepted: 03/30/2022] [Indexed: 12/14/2022] Open
Abstract
The NLRP3 inflammasome is a cytosolic multimeric protein platform that leads to the activation of the protease zymogen, caspase-1 (CASP1). Inflammasome activation mediates the proteolytic activation of pro-inflammatory cytokines (IL-1β and IL-18) and program cell death called pyroptosis. The pyroptosis is mediated by the protein executioner Gasdermin D (GSDMD), which forms pores at the plasma membrane to facilitate IL-1β/IL-18 secretion and causes pyroptosis. The NLRP3 inflammasome is activated in response to a large number of pathogenic and sterile insults. However, an uncontrolled inflammasome activation may drive inflammation-associated diseases. Initially, inflammasome-competent cells were believed to be limited to macrophages, dendritic cells (DC), and monocytes. However, emerging evidence indicates that neutrophils can assemble inflammasomes in response to various stimuli with functional relevance. Interestingly, the regulation of inflammasome in neutrophils appears to be unconventional. This review provides a broad overview of the role and regulation of inflammasomes—and more specifically NLRP3—in neutrophils.
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Immler R, Nadolni W, Bertsch A, Morikis V, Rohwedder I, Masgrau-Alsina S, Schroll T, Yevtushenko A, Soehnlein O, Moser M, Gudermann T, Barnea ER, Rehberg M, Simon SI, Zierler S, Pruenster M, Sperandio M. The voltage-gated potassium channel KV1.3 regulates neutrophil recruitment during inflammation. Cardiovasc Res 2022; 118:1289-1302. [PMID: 33881519 PMCID: PMC8953450 DOI: 10.1093/cvr/cvab133] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 04/20/2021] [Indexed: 12/25/2022] Open
Abstract
AIMS Neutrophil trafficking within the vasculature strongly relies on intracellular calcium signalling. Sustained Ca2+ influx into the cell requires a compensatory efflux of potassium to maintain membrane potential. Here, we aimed to investigate whether the voltage-gated potassium channel KV1.3 regulates neutrophil function during the acute inflammatory process by affecting sustained Ca2+ signalling. METHODS AND RESULTS Using in vitro assays and electrophysiological techniques, we show that KV1.3 is functionally expressed in human neutrophils regulating sustained store-operated Ca2+ entry through membrane potential stabilizing K+ efflux. Inhibition of KV1.3 on neutrophils by the specific inhibitor 5-(4-Phenoxybutoxy)psoralen (PAP-1) impaired intracellular Ca2+ signalling, thereby preventing cellular spreading, adhesion strengthening, and appropriate crawling under flow conditions in vitro. Using intravital microscopy, we show that pharmacological blockade or genetic deletion of KV1.3 in mice decreased neutrophil adhesion in a blood flow dependent fashion in inflamed cremaster muscle venules. Furthermore, we identified KV1.3 as a critical component for neutrophil extravasation into the inflamed peritoneal cavity. Finally, we also revealed impaired phagocytosis of Escherichia coli particles by neutrophils in the absence of KV1.3. CONCLUSION We show that the voltage-gated potassium channel KV1.3 is critical for Ca2+ signalling and neutrophil trafficking during acute inflammatory processes. Our findings do not only provide evidence for a role of KV1.3 for sustained calcium signalling in neutrophils affecting key functions of these cells, they also open up new therapeutic approaches to treat inflammatory disorders characterized by overwhelming neutrophil infiltration.
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Affiliation(s)
- Roland Immler
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, Großhaderner Straße 9, 82152 Planegg-Martinsried, Germany
| | - Wiebke Nadolni
- Walther-Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universität München, Goethestraße 33, 80336 Munich, Germany
| | - Annika Bertsch
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, Großhaderner Straße 9, 82152 Planegg-Martinsried, Germany
| | - Vasilios Morikis
- Department of Biomedical Engineering, Graduate Group in Immunology, University of California, 451 E. Health Sciences Drive, Davis, CA 95616, USA
| | - Ina Rohwedder
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, Großhaderner Straße 9, 82152 Planegg-Martinsried, Germany
| | - Sergi Masgrau-Alsina
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, Großhaderner Straße 9, 82152 Planegg-Martinsried, Germany
| | - Tobias Schroll
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, Großhaderner Straße 9, 82152 Planegg-Martinsried, Germany
| | - Anna Yevtushenko
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, Großhaderner Straße 9, 82152 Planegg-Martinsried, Germany
| | - Oliver Soehnlein
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität München, Pettenkofer Straße 8a, 80336 Munich, Germany
- Department of Physiology and Pharmacology (FyFa), Karolinska Institutet, Solnavägen 1, 17177 Stockholm, Sweden
- Institute for Experimental Pathology (ExPat), Center for Molecular Biology of Inflammation (ZMBE), Westfälische Wilhelms-Universität Münster, Von-Enmarch-Straße 56, 48149 Münster, Germany
| | - Markus Moser
- Institute of Experimental Hematology, School of Medicine, Technical University Munich, Einsteinstraße 25, 81675 Munich, Germany
| | - Thomas Gudermann
- Walther-Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universität München, Goethestraße 33, 80336 Munich, Germany
| | - Eytan R Barnea
- BioIncept LLC, New York, 140 East 40th Street #11E, NY 10016, USA
| | - Markus Rehberg
- Institute of Lung Biology and Disease, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Scott I Simon
- Department of Biomedical Engineering, Graduate Group in Immunology, University of California, 451 E. Health Sciences Drive, Davis, CA 95616, USA
| | - Susanna Zierler
- Walther-Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universität München, Goethestraße 33, 80336 Munich, Germany
| | - Monika Pruenster
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, Großhaderner Straße 9, 82152 Planegg-Martinsried, Germany
| | - Markus Sperandio
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, Großhaderner Straße 9, 82152 Planegg-Martinsried, Germany
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Ding Z, Du F, Rönnow CF, Wang Y, Rahman M, Thorlacius H. Actin-related protein 2/3 complex regulates neutrophil extracellular trap expulsion and lung damage in abdominal sepsis. Am J Physiol Lung Cell Mol Physiol 2022; 322:L662-L672. [PMID: 35272488 DOI: 10.1152/ajplung.00318.2021] [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: 11/22/2022] Open
Abstract
Neutrophil extracellular trap (NET) formation is a key feature in sepsis. The aim of the present study was to examine the role of the actin cytoskeleton in regulating the expulsion of NETs. Actin-related protein 2/3 (Arp 2/3) complex is an important regulator of F-actin polymerization. Co-incubation with CK666, a specific Arp 2/3 inhibitor, decreased PMA-induced NET formation in vitro. CK666 not only abolished F-actin polymerization but also caused intracellular retention of NETs. Inhibition of Arp 2/3 reduced NET formation on circulating neutrophils and in the bronchoalveolar space in mice undergoing cecal ligation and puncture (CLP). Notably, treatment with CK666 attenuated CLP-induced neutrophil recruitment, edema formation and tissue damage in the lungs. Moreover, Arp 2/3 inhibition decreased levels of CXCL-1 and interleukin-6 in the lung and plasma of septic animals. Taken together, this study shows that expulsion of NETs is regulated by the actin cytoskeleton and that inhibition of Arp 2/3-dependent F-actin polymerization not only decrease NET formation but also protect against pathological inflammation and tissue damage in septic lung injury. Thus, we suggest that targeting NET release is a novel and useful way to ameliorate lung damage in abdominal sepsis.
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Affiliation(s)
- Zhiyi Ding
- Department of Clinical Sciences, Section for Surgery, Lund University, Malmö, Sweden
| | - Feifei Du
- Department of Clinical Sciences, Section for Surgery, Lund University, Malmö, Sweden
| | - Carl-Fredrik Rönnow
- Department of Clinical Sciences, Section for Surgery, Lund University, Malmö, Sweden
| | - Yongzhi Wang
- Department of Clinical Sciences, Section for Surgery, Lund University, Malmö, Sweden
| | - Milladur Rahman
- Department of Clinical Sciences, Section for Surgery, Lund University, Malmö, Sweden
| | - Henrik Thorlacius
- Department of Clinical Sciences, Section for Surgery, Lund University, Malmö, Sweden
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147
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Hepatocyte growth factor protects pulmonary endothelial barrier against oxidative stress and mitochondria-dependent apoptosis. Chin Med J (Engl) 2022; 135:837-848. [PMID: 35671182 PMCID: PMC9276181 DOI: 10.1097/cm9.0000000000001916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Hawez A, Ding Z, Taha D, Madhi R, Rahman M, Thorlacius H. c-Abl kinase regulates neutrophil extracellular trap formation and lung injury in abdominal sepsis. J Transl Med 2022; 102:263-271. [PMID: 34732849 PMCID: PMC8860741 DOI: 10.1038/s41374-021-00683-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 08/23/2021] [Accepted: 10/07/2021] [Indexed: 11/14/2022] Open
Abstract
Sepsis is associated with exaggerated neutrophil responses although mechanisms remain elusive. The aim of this study was to investigate the role of c-Abelson (c-Abl) kinase in neutrophil extracellular trap (NET) formation and inflammation in septic lung injury. Abdominal sepsis was induced by cecal ligation and puncture (CLP). NETs were detected by electron microscopy in the lung and by confocal microscopy in vitro. Plasma levels of DNA-histone complexes, interleukin-6 (IL-6) and CXC chemokines were quantified. CLP-induced enhanced phosphorylation of c-Abl kinase in circulating neutrophils. Administration of the c-Abl kinase inhibitor GZD824 not only abolished activation of c-Abl kinase in neutrophils but also reduced NET formation in the lung and plasma levels of DNA-histone complexes in CLP mice. Moreover, inhibition of c-Abl kinase decreased CLP-induced lung edema and injury. Administration of GDZ824 reduced CLP-induced increases in the number of alveolar neutrophils. Inhibition of c-Abl kinase also markedly attenuated levels of CXC chemokines in the lung and plasma as well as IL-6 levels in the plasma of septic animals. Taken together, this study demonstrates that c-Abl kinase is a potent regulator of NET formation and we conclude that c-Abl kinase might be a useful target to ameliorate lung damage in abdominal sepsis.
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Affiliation(s)
- Avin Hawez
- Department of Clinical Sciences, Malmö, Section for Surgery, Skåne University Hospital, Lund University, 205 02, Malmö, Sweden
| | - Zhiyi Ding
- Department of Clinical Sciences, Malmö, Section for Surgery, Skåne University Hospital, Lund University, 205 02, Malmö, Sweden
| | - Dler Taha
- Department of Clinical Sciences, Malmö, Section for Surgery, Skåne University Hospital, Lund University, 205 02, Malmö, Sweden
| | - Raed Madhi
- Department of Clinical Sciences, Malmö, Section for Surgery, Skåne University Hospital, Lund University, 205 02, Malmö, Sweden
| | - Milladur Rahman
- Department of Clinical Sciences, Malmö, Section for Surgery, Skåne University Hospital, Lund University, 205 02, Malmö, Sweden
| | - Henrik Thorlacius
- Department of Clinical Sciences, Malmö, Section for Surgery, Skåne University Hospital, Lund University, 205 02, Malmö, Sweden.
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149
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Schultz BM, Acevedo OA, Kalergis AM, Bueno SM. Role of Extracellular Trap Release During Bacterial and Viral Infection. Front Microbiol 2022; 13:798853. [PMID: 35154050 PMCID: PMC8825568 DOI: 10.3389/fmicb.2022.798853] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/04/2022] [Indexed: 12/20/2022] Open
Abstract
Neutrophils are innate immune cells that play an essential role during the clearance of pathogens that can release chromatin structures coated by several cytoplasmatic and granular antibacterial proteins, called neutrophil extracellular traps (NETs). These supra-molecular structures are produced to kill or immobilize several types of microorganisms, including bacteria and viruses. The contribution of the NET release process (or NETosis) to acute inflammation or the prevention of pathogen spreading depends on the specific microorganism involved in triggering this response. Furthermore, studies highlight the role of innate cells different from neutrophils in triggering the release of extracellular traps during bacterial infection. This review summarizes the contribution of NETs during bacterial and viral infections, explaining the molecular mechanisms involved in their formation and the relationship with different components of such pathogens.
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Affiliation(s)
- Bárbara M Schultz
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Orlando A Acevedo
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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Padilha de Lima A, Macedo Rogero M, Araujo Viel T, Garay-Malpartida HM, Aprahamian I, Lima Ribeiro SM. Interplay between Inflammaging, Frailty and Nutrition in Covid-19: Preventive and Adjuvant Treatment Perspectives. J Nutr Health Aging 2022; 26:67-76. [PMID: 35067706 PMCID: PMC8713542 DOI: 10.1007/s12603-021-1720-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 10/06/2021] [Indexed: 02/06/2023]
Abstract
As humans age, their immune system undergoes modifications, including a low-grade inflammatory status called inflammaging. These changes are associated with a loss of physical and immune resilience, amplifying the risk of being malnourished and frail. Under the COVID-19 scenario, inflammaging increases the susceptibility to poor prognostics. We aimed to bring the current concepts of inflammaging and its relationship with frailty and COVID-19 prognostic; highlight the importance of evaluating the nutritional risk together with frailty aiming to monitor older adults in COVID-19 scenario; explore some compounds with potential to modulate inflammaging in perspective to manage the COVID-19 infection. Substances such as probiotics and senolytics can help reduce the high inflammatory status. Also, the periodic evaluation of nutrition risk and frailty will allow interventions, assuring the appropriate care.
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Affiliation(s)
- A Padilha de Lima
- Sandra Maria Lima Ribeiro, University of São Paulo- Public Health School, Av Dr. Arnaldo 715, Sao Paulo- SP- Brazil, e-mail:
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