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Liu MM, Zhao YJ, Boekhout T, Wang QM. Exploring the antibiofilm efficacy of cinnamaldehyde against Malassezia globosa associated pityriasis versicolor. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155542. [PMID: 38823343 DOI: 10.1016/j.phymed.2024.155542] [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: 11/07/2023] [Revised: 03/03/2024] [Accepted: 03/15/2024] [Indexed: 06/03/2024]
Abstract
BACKGROUND Malassezia globosa is a commensal basidiomycetous yeast occurring on the skin that causes pityriasis versicolor (PV) and seborrheic dermatitis, but that has also been implicated in other dermatoses. Cinnamaldehyde (CM) has antibacterial, antioxidant, and anti-inflammatory activities, but the effect of CM on M. globosa-infected PV has not been clarified. PURPOSE The study aimed to investigate the possible antifungal and antibiofilm activities of CM against M. globosa-infected PV in vivo and in vitro. METHODS The broth microdilution method was used to determine the minimum inhibitory concentration (MIC) of CM against M. globosa. The crystal violet staining assay and XTT assay were used to investigate the inhibition of CM on biofilm formation and the eradication of mature biofilms. The visualizations of the biofilm and cell distribution in the biofilm matrix were performed with a scanning electron microscope and confocal laser scanning microscope. The kits of antioxidant kinase were used to determine the activities of oxidative stress markers in M. globosa-stimulated HaCaT cells. Western blot assays were used to evaluate the role of TLR2/NF-κB in vitro. Furthermore, the protective effect of CM was assessed in M. globosa-associated PV mice. The expressions of inflammatory cytokines and apoptosis were screened using ELISA assays. The expressions of interleukin-6 and tumor necrosis factor-α were measured by an immunohistochemistry method in vivo. RESULTS Our results showed that the MIC of CM against planktonic cells of M. globosa was 4 µg/ml and treatment with 20 × MIC CM eradicated mature biofilms of M. globosa. In vitro, after CM treatment the levels of oxidative stress indicators (i.e., superoxide dismutase, catalase, glutathione) significantly increased, while the levels of malondialdehyde decreased. In addition, the expression of TLR2/NF-κB in HaCaT cells was significantly reduced after CM treatment. On the other hand, an in vivo therapeutic effect of CM was assessed against M. globosa-infected mice. The fungal load on the skin decreased after treatment with CM compared to the M. globosa-infected group. In addition, the uninfected animals showed a normal skin structure, whereas, the M. globosa-infected mice showed extensive infiltration of neutrophils in skin tissues that improved after treatment with CM. Meanwhile, the levels of inflammatory and apoptotic factors improved after CM treatment. CONCLUSION Our results showed that CM inhibits the biofilm formation of M. globosa and eradicates mature biofilms of M. globosa. Treatment with CM significantly decreased oxidative stress, apoptosis, and inflammatory markers in the skin tissue and HaCaT cells. Hence, this study suggests that CM is a good candidate therapeutic agent against M. globosa-induced PV infections because of its antifungal, antibiofilm, and anti-inflammatory properties.
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Affiliation(s)
- Miao-Miao Liu
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - Yu-Jing Zhao
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China
| | - Teun Boekhout
- College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Qi-Ming Wang
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, Hebei, China.
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Erhunmwunse NO, Tongo I, Ezemonye LI. Multiple biomarker responses in female Clarias gariepinus exposed to acetaminophen. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:122437-122457. [PMID: 37973782 DOI: 10.1007/s11356-023-30721-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 10/23/2023] [Indexed: 11/19/2023]
Abstract
Several authors have documented the presences of acetaminophen (APAP) in both surface and groundwater and have received attention from government agencies and basic authorities across the globe. The impacts of such pharmaceutical products on non-target organism like fish are underestimated as a result of selected investigation using few biomarkers. We evaluated the sub-chronic impacts of APAP in female catfish (Clarias gariepinus) using multiple biomarkers. The exposure of female catfish to APAP induced oxidative stress. Markers such as superoxide dismutase (SOD), glutathione peroxidase (GPx), and total antioxidant capacity (TAC) were significantly higher in all exposed groups. Exposure of Clarias gariepinus to APAPA caused histological alterations in the gills (fusion and shortening of some filaments, hyperplasia of the epithelial gill cells, aneurism, congestion, and epithelial rupture of the gills), liver (apoptotic hyperplasia, sinusoidal congestion, and necrosis of the hepatocytes), and gonad (degenerated follicles and ovarian apoptosis). Furthermore, multivariate results indicated that there was a distinct response from the acetaminophen-exposed female catfish, with over 95% of the biomarkers significantly contributing to the discrimination between the acetaminophen-exposed female catfish and the control groups. Our research provides evidence supporting the use of a multiple biomarker approach to evaluate the impacts of drugs on the health status of exposed fish.
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Affiliation(s)
- Nosakhare Osazee Erhunmwunse
- Laboratory for Ecotoxicology and Environmental Forensics, Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, PMB 1154, Benin City, Nigeria.
- Igbinedion University Okada, PMB0001, Okada, Ovia North East LGA, Edo State, Nigeria.
| | - Isioma Tongo
- Laboratory for Ecotoxicology and Environmental Forensics, Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, PMB 1154, Benin City, Nigeria
- Igbinedion University Okada, PMB0001, Okada, Ovia North East LGA, Edo State, Nigeria
| | - Lawrence Ikechukwu Ezemonye
- Laboratory for Ecotoxicology and Environmental Forensics, Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, PMB 1154, Benin City, Nigeria
- Igbinedion University Okada, PMB0001, Okada, Ovia North East LGA, Edo State, Nigeria
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3
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Papic MV, Ljujic B, Zivanovic S, Papic M, Vuletic M, Petrovic I, Gazdic Jankovic M, Virijevic K, Popovic M, Miletic Kovacevic M. Difference in immune responses to Candida albicans in two inbred strains of male rats. Arch Oral Biol 2023; 156:105808. [PMID: 37778290 DOI: 10.1016/j.archoralbio.2023.105808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 10/03/2023]
Abstract
OBJECTIVE To investigate the influence of strain differences in immune response on the pathogenesis of oral candidiasis in Dark Agouti (DA) and Albino Oxford (AO) inbred strains of rats. DESIGN Seventy male 8-weeks old DA and AO rats were inoculated with Candida albicans to induce three different experimental models of oral candidiasis, one immunocompetent and two immunocompromised models. The animals were sacrificed after 16 days from the beginning of the experiment followed by collecting the samples of the tongue dorsum and blood for histopathological (PAS and H&E staining), immunohistochemical, qRT-PCR, and oxidative stress analyses. RESULTS Histopathological and immunohistochemical analyses revealed lower levels of epithelial colonization, epithelial damage, and inflammatory infiltration in DA compared to AO strain of rats. DA rats had fewer CD45, CD68, and CD3 positive cells but more HIS 48 positive cells than AO rats. The expressions of IL-1β, TNFα, IFN-γ, IL-10 and TGF-β1 were consistently higher in DA strain across all experimental models. However, the expressions of IL-4 and IL-17 differed inconsistently between DA and AO strain in various experimental models. Strain differences were observed in levels of prooxidative hydrogen peroxide and lipid peroxidation, with higher levels presented in AO rats compared to DA rats, while antioxidative parameters presented little yet inconsistent difference between strains. CONCLUSION DA strain of rats consistently presented lower susceptibility to oral infection with C. albicans compared to AO strain with robust Th1/Th17 immune response indicating the importance of the genetic background on the development of oral candidiasis.
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Affiliation(s)
- Mirjana V Papic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Biljana Ljujic
- Department of Genetics, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia; Center for Harm Reduction of Biological and Chemical Hazards, Faculty of Medical Sciences University of Kragujevac, Serbia.
| | - Suzana Zivanovic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Milos Papic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Miona Vuletic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Ivana Petrovic
- Department of Clinical Microbiology, University of Kragujevac Clinical Centre, Kragujevac, Serbia
| | - Marina Gazdic Jankovic
- Department of Genetics, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia; Center for Harm Reduction of Biological and Chemical Hazards, Faculty of Medical Sciences University of Kragujevac, Serbia
| | - Katarina Virijevic
- Department of Natural Sciences, Institute for Information Technologies Kragujevac, University of Kragujevac, Serbia
| | - Milica Popovic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Marina Miletic Kovacevic
- Center for Harm Reduction of Biological and Chemical Hazards, Faculty of Medical Sciences University of Kragujevac, Serbia; Department of Histology and Embryology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
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Membrillo de Novales FJ, Ramírez-Olivencia G, Mata Forte MT, Zamora Cintas MI, Simón Sacristán MM, Sánchez de Castro M, Estébanez Muñoz M. The Impact of Antibiotic Prophylaxis on a Retrospective Cohort of Hospitalized Patients with COVID-19 Treated with a Combination of Steroids and Tocilizumab. Antibiotics (Basel) 2023; 12:1515. [PMID: 37887216 PMCID: PMC10604609 DOI: 10.3390/antibiotics12101515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/28/2023] Open
Abstract
OBJECTIVES In the context of COVID-19, patients with a severe or critical illness may be more susceptible to developing secondary bacterial infections. This study aims to investigate the relationship between the use of prophylactic antibiotic therapy and the occurrence of bacterial or fungal isolates following the administration of tocilizumab in hospitalized COVID-19 patients who had previously received steroids during the first and second waves of the pandemic in Spain. METHODS This retrospective observational study included 70 patients hospitalized with COVID-19 who received tocilizumab and steroids between January and December 2020. Data on demographics, comorbidities, laboratory tests, microbiologic results, treatment, and outcomes were collected from electronic health records. The patients were divided into two groups based on the use of antibiotic prophylaxis, and the incidence of bacterial and fungal colonizations/infections was analyzed. RESULTS Among the included patients, 45 patients received antibiotic prophylaxis. No significant clinical differences were observed between the patients based on prophylaxis use regarding the number of clinically diagnosed infections, ICU admissions, or mortality rates. However, the patients who received antibiotic prophylaxis showed a higher incidence of colonization by multidrug-resistant bacteria compared to that of the subgroup that did not receive prophylaxis. The most commonly isolated microorganisms were Candida albicans, Enterococcus faecalis, Staphylococcus aureus, and Staphylococcus epidermidis. Conclusions: In this cohort of hospitalized COVID-19 patients treated with tocilizumab and steroids, the use of antibiotic prophylaxis did not reduce the incidence of secondary bacterial infections. However, it was associated with an increased incidence of colonization by multidrug-resistant bacteria.
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Affiliation(s)
| | - Germán Ramírez-Olivencia
- CBRN and Infectious Diseases Department, Hospital Central de la Defensa “Gómez Ulla”, 28047 Madrid, Spain
| | - Maj. Tatiana Mata Forte
- CBRN and Infectious Diseases Department, Hospital Central de la Defensa “Gómez Ulla”, 28047 Madrid, Spain
| | | | | | | | - Miriam Estébanez Muñoz
- CBRN and Infectious Diseases Department, Hospital Central de la Defensa “Gómez Ulla”, 28047 Madrid, Spain
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5
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Pizzato HA, Wang Y, Wolfgang MJ, Finck BN, Patti GJ, Bhattacharya D. Mitochondrial pyruvate metabolism and glutaminolysis toggle steady-state and emergency myelopoiesis. J Exp Med 2023; 220:e20221373. [PMID: 37249600 PMCID: PMC10227646 DOI: 10.1084/jem.20221373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 03/23/2023] [Accepted: 05/10/2023] [Indexed: 05/31/2023] Open
Abstract
To define the metabolic requirements of hematopoiesis, we examined blood lineages in mice conditionally deficient in genes required for long-chain fatty acid oxidation (Cpt2), glutaminolysis (Gls), or mitochondrial pyruvate import (Mpc2). Genetic ablation of Cpt2 or Gls minimally impacted most blood lineages. In contrast, deletion of Mpc2 led to a sharp decline in mature myeloid cells and a slower reduction in T cells, whereas other hematopoietic lineages were unaffected. Yet MPC2-deficient monocytes and neutrophils rapidly recovered due to a transient and specific increase in myeloid progenitor proliferation. Competitive bone marrow chimera and stable isotope tracing experiments demonstrated that this proliferative burst was progenitor intrinsic and accompanied by a metabolic switch to glutaminolysis. Myeloid recovery after loss of MPC2 or cyclophosphamide treatment was delayed in the absence of GLS. Reciprocally, MPC2 was not required for myeloid recovery after cyclophosphamide treatment. Thus, mitochondrial pyruvate metabolism maintains myelopoiesis under steady-state conditions, while glutaminolysis in progenitors promotes emergency myelopoiesis.
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Affiliation(s)
- Hannah A. Pizzato
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Yahui Wang
- Department of Chemistry, Washington University, Saint Louis, MO, USA
| | - Michael J. Wolfgang
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Brian N. Finck
- Division of Geriatrics and Nutritional Sciences, Washington University School of Medicine, Saint Louis, MO, USA
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Gary J. Patti
- Department of Chemistry, Washington University, Saint Louis, MO, USA
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
- Siteman Cancer Center, Washington University, Saint Louis, MO, USA
| | - Deepta Bhattacharya
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
- BIO5 Institute, University of Arizona, Tucson, AZ, USA
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Tsioumpekou M, Krijgsman D, Leusen JHW, Olofsen PA. The Role of Cytokines in Neutrophil Development, Tissue Homing, Function and Plasticity in Health and Disease. Cells 2023; 12:1981. [PMID: 37566060 PMCID: PMC10417597 DOI: 10.3390/cells12151981] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/12/2023] Open
Abstract
Neutrophils are crucial innate immune cells and comprise 50-70% of the white blood cell population under homeostatic conditions. Upon infection and in cancer, blood neutrophil numbers significantly increase because of the secretion of various chemo- and cytokines by, e.g., leukocytes, pericytes, fibroblasts and endothelial cells present in the inflamed tissue or in the tumor microenvironment (TME). The function of neutrophils in cancer has recently gained considerable attention, as they can exert both pro- and anti-tumorigenic functions, dependent on the cytokine milieu present in the TME. Here, we review the effect of cytokines on neutrophil development, tissue homing, function and plasticity in cancer and autoimmune diseases as well as under physiological conditions in the bone marrow, bloodstream and various organs like the spleen, kidney, liver, lung and lymph nodes. In addition, we address several promising therapeutic options, such as cytokine therapy, immunocytokines and immunotherapy, which aim to exploit the anti-tumorigenic potential of neutrophils in cancer treatment or block excessive neutrophil-mediated inflammation in autoimmune diseases.
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Affiliation(s)
- Maria Tsioumpekou
- Center for Translational Immunology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands; (M.T.); (D.K.); (J.H.W.L.)
| | - Daniëlle Krijgsman
- Center for Translational Immunology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands; (M.T.); (D.K.); (J.H.W.L.)
- Center for Molecular Medicine, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Jeanette H. W. Leusen
- Center for Translational Immunology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands; (M.T.); (D.K.); (J.H.W.L.)
| | - Patricia A. Olofsen
- Center for Translational Immunology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands; (M.T.); (D.K.); (J.H.W.L.)
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7
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Al-Ghamdi ARS, Khanam HK, Qamar Z, Abdul NS, Reddy N, Vempalli S, Noushad M, Alqahtani WMS. Therapeutic efficacy of adjunctive photodynamic therapy in the treatment of denture stomatitis. Photodiagnosis Photodyn Ther 2023; 42:103326. [PMID: 36773753 DOI: 10.1016/j.pdpdt.2023.103326] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023]
Abstract
BACKGROUND The present report assessed the efficacy of curcumin-mediated photodynamic therapy (CUR-mediated PDT) as an adjunct to antifungal gel treatment by evaluating the salivary interleukin-6 (IL-6) and matrix metalloproteinases-8 (MMP-8) levels together with Candida species counts in denture stomatitis (DS) patients. METHODS In total, 50 DS subjects were randomly categorized into 2 groups: Group-1: subjects who received the antifungal gel treatment and Group-2: participants who received CUR-mediated PDT. The Sabourad Dextrose Agar and CHROMAgar were utilized for evaluating Candida species counts, while the Enzyme-Linked Immunosorbent Assay was employed to estimate the salivary levels of IL-6 and MMP-8. All clinical evaluations were performed at the baseline, 1 month, and 2 months. RESULTS In total, group-2 subjects showed a significant decrease in Candida albicans (C. albicans) counts on both follow-ups (i.e., 1-month and 2-month) than group-1 participants. C. krusei count also reduced in group-2 subejcts than group-1 participants at the 2nd follow-up as compared to the baseline, nevertheless, a slight increase in C. krusei count was noticed in group-2 subjects at the 2nd follow-up than the 1st follow-up. The salivary IL-6 and MMP-8 levels in both groups reduced significantly at both follow-ups than the baseline. According to the stepwise logistic regression analysis, no statistically significant correlation was observed between Candida species count and other parameters such as age and gender of the patient, duration of DS, and frequency of treatment(s). CONCLUSION CUR-mediated PDT is an efficaciousness therapeutic modality for alleviating Candida species counts on the surface of denture and the palatal mucosa, as well as improving the salivary IL-6 and MMP-8 levels in DS patients.
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Affiliation(s)
- Abdul Rahman Saeed Al-Ghamdi
- Department of Restorative and Prosthetic Dentistry, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia
| | - Hm Khuthija Khanam
- Department of Restorative and Prosthetic Dentistry, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia.
| | - Zeeshan Qamar
- Department of O&MFS and Diagnostic Sciences, Faculty of Dentistry, Riyadh Elm University, Riyadh, Saudi Arabia
| | - Nishath Sayed Abdul
- Department of OMFS and Diagnostic Sciences (Oral Pathology), Faculty of Dentistry, Riyadh Elm University, Riyadh, Saudi Arabia
| | - Naveen Reddy
- Department of Prosthodontics, Faculty of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Swetha Vempalli
- Department of Oral and Maxillofacial Sciences, Faculty of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Mohammed Noushad
- Department of Restorative and Prosthetic Dentistry, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia; Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Waleed M S Alqahtani
- Department of Prosthetic Dentistry, College of Dentistry, King Khalid University, Abha, Saudi Arabia
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Dietlein N, Wang X, Metz J, Disson O, Shang F, Beyersdörffer C, Rodríguez Correa E, Lipka DB, Begus-Nahrmann Y, Kosinsky RL, Johnsen SA, Lecuit M, Höfer T, Rodewald HR. Usp22 is an intracellular regulator of systemic emergency hematopoiesis. Sci Immunol 2022; 7:eabq2061. [PMID: 36490327 DOI: 10.1126/sciimmunol.abq2061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Emergency hematopoiesis is a concerted response aimed toward enhanced protection from infection, involving multiple cell types and developmental stages across the immune system. Despite its importance, the underlying molecular regulation remains poorly understood. The deubiquitinase USP22 regulates the levels of monoubiquitinated histone H2B (H2Bub1), which is associated with activation of interferon responses upon viral infection. Here, we show that in the absence of infection or inflammation, mice lacking Usp22 in all hematopoietic cells display profound systemic emergency hematopoiesis, evident by increased hematopoietic stem cell proliferation, myeloid bias, and extramedullary hematopoiesis. Functionally, loss of Usp22 results in elevated phagocytosis by neutrophilic granulocytes and enhanced innate protection against Listeria monocytogenes infection. At the molecular level, we found this state of emergency hematopoiesis associated with transcriptional signatures of myeloid priming, enhanced mitochondrial respiration, and innate and adaptive immunity and inflammation. Augmented expression of many inflammatory genes was linked to elevated locus-specific H2Bub1 levels. Collectively, these results demonstrate the existence of a tunable epigenetic state that promotes systemic emergency hematopoiesis in a cell-autonomous manner to enhance innate protection, identifying potential paths toward immune enhancement.
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Affiliation(s)
- Nikolaus Dietlein
- Division of Cellular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.,Faculty of Biosciences, Heidelberg University, Im Neuenheimer Feld 234, 69120 Heidelberg, Germany
| | - Xi Wang
- Division of Cellular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.,State Key Laboratory of Reproductive Medicine, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Jonas Metz
- Faculty of Biosciences, Heidelberg University, Im Neuenheimer Feld 234, 69120 Heidelberg, Germany.,Division of Theoretical Systems Biology, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Olivier Disson
- Institut Pasteur, Université de Paris, Inserm U1117, Biology of Infection Unit, 75015 Paris, France
| | - Fuwei Shang
- Division of Cellular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.,Faculty of Medicine, Heidelberg University, Im Neuenheimer Feld 672, 69120 Heidelberg, Germany
| | - Celine Beyersdörffer
- Division of Cellular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Esther Rodríguez Correa
- Division of Cellular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Daniel B Lipka
- Section Translational Cancer Epigenomics, Department of Translational Medical Oncology, German Cancer Research Center and National Center for Tumor Diseases, Im Neuenheimer Feld 581, 69120 Heidelberg, Germany.,Faculty of Medicine, Otto-von-Guericke-University, Magdeburg, Germany
| | - Yvonne Begus-Nahrmann
- Institute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, Göttingen, Germany
| | - Robyn Laura Kosinsky
- Division of Gastroenterology and Hepatology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
| | - Steven A Johnsen
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany.,Department of General, Visceral & Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Marc Lecuit
- Institut Pasteur, Université de Paris, Inserm U1117, Biology of Infection Unit, 75015 Paris, France.,Institut Pasteur, National Reference Center and WHO Collaborating Center Listeria, 75015 Paris, France.,Division of Infectious Diseases and Tropical Medicine, Necker-Enfants Malades University Hospital, APHP, Institut Imagine, 75006 Paris, France
| | - Thomas Höfer
- Division of Theoretical Systems Biology, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Hans-Reimer Rodewald
- Division of Cellular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
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9
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Chen J, Qi H, Liu L, Niu Y, Yu S, Qin S, He L. Elevated cholesteryl ester transfer and phospholipid transfer proteins aggravated psoriasis in imiquimod-induced mouse models. Lipids Health Dis 2022; 21:75. [PMID: 35982498 PMCID: PMC9389805 DOI: 10.1186/s12944-022-01684-0] [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: 05/06/2022] [Accepted: 08/02/2022] [Indexed: 11/18/2022] Open
Abstract
Background Psoriasis is a chronic inflammatory skin disorder related to dyslipidemia, with decreased high-density lipoprotein (HDL). Various cell types express phospholipid transfer protein (PLTP) as well as cholesteryl ester transfer protein (CETP). Their elevated levels among transgenic (Tg) mice led to reduced HDL and a higher risk of atherosclerosis (AS). This study examined whether elevated CETP and PLTP could aggravate psoriasis in a psoriasis vulgaris mouse model. Methods The back skins of CETP-Tg, PLTP-Tg, and C57BL/6 male mice, aged six to 8 weeks, were shaved for imiquimod cream (IMQ) (5%) treatment for five consecutive days. The clinical pathological parameters were rated independently using the modified target lesion psoriasis severity score. The skin sections stained with hematoxylin-eosin were scored by the Baker score. Epidermal thickening and differentiation and inflammatory factor infiltration were determined by immunohistochemistry. Inflammatory cytokine levels were measured using quantitative reverse transcription-polymerase chain reaction (RT–PCR) and enzyme-linked immunosorbent assay (ELISA) kits. This work employed SPSS Statistics Version to conduct statistical analyses. Results In this study, CETP-Tg and PLTP-Tg mice had higher clinical and histological scores than wild-type (WT) mice. Immunohistochemistry of the epidermis and dermis revealed a high proportion of proliferating cell nuclear antigen (PCNA) positivity within psoriatic skin lesions of CETP-Tg and PLTP-Tg mice compared with WT mice. Interferon-α (IFN-α), interleukin-1β (IL-1β), IL-6, IL-17A, IL-17F, IL-22, and IL-23p19 mRNA levels increased within CETP-Tg and PLTP-Tg mice compared with WT counterparts. In comparison with WT mice, plasma tumor necrosis factor-α (TNF-α) levels, rather than IL-6 levels, were increased in CETP-Tg and PLTP-Tg mice. Conclusions Elevated CETP and PLTP aggravate psoriasis in a imiquimod-induced mouse model.
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Affiliation(s)
- Jun Chen
- Department of Geriatrics, The Affiliated Hospital of Chengde Medical University Chengde, 067000, Hebei, China
| | - Haihua Qi
- Department of Dermatology and Venerology, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei, China
| | - Lijun Liu
- Department of Dermatology and Venerology, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei, China
| | - Yandong Niu
- Department of Dermatology and Venerology, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei, China
| | - Shuping Yu
- Department of Dermatology and Venerology, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei, China
| | - Shucun Qin
- Institute of Atherosclerosis, Shandong First Medical University, Tai'an, 271000, Shandong, China
| | - Lei He
- Department of Dermatology and Venerology, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei, China.
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10
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Beştepe Dursun Z, Sipahioğlu H, Civan Yüksel R, Sav H, Çelik İ. Risk factors and lethality associated with Candidemia in severe COVID-19 patients. Curr Med Mycol 2022; 8:32-38. [PMID: 36340438 PMCID: PMC9548077 DOI: 10.18502/cmm.8.1.9212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/25/2022] [Accepted: 03/21/2022] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND AND PURPOSE Candidemia remained important in the intensive care units (ICU) during the COVID-19 pandemic. This study aimed to investigate the clinical and laboratory data on candidemia in COVID-19 patients. MATERIALS AND METHODS The baseline characteristics, as well as laboratory and clinical findings of candidemia and non-candidemia patients, were compared. Candidemia was defined as the isolation of Candida spp. from blood cultures. The isolates were identified by VITEK® 2 (bioMérieux, France) commercial method. Antifungal susceptibility was assessed using the E-test method. Univariate and multiple binary logistic regression analyses were performed to compare the variables. RESULTS In total, 126 patients with the COVID-19 disease were included. Candidemia was diagnosed in 44 (35%) of the patients. The number of patients with diabetes mellitus and chronic renal failure was higher in the candidemia group. In the candidemia group, the duration of ICU stay of patients, the 30-day mortality rate, mechanical ventilation therapy, and systemic corticosteroids (Prednisone) usage were significantly higher in candidemia patients. Moreover, the median white blood cell, neutrophils, and lactate dehydrogenase were higher in the candidemia group.Univariate and multiple binary logistic regression analyses were performed to compare the variables. Isolated species were identified as Candida albicans (n=12, 41%), Candida parapsilosis (n=7, 24%), Candida glabrata (n=6, 21%), Candida tropicalis (n=3, 10%), and Candida dublinensis (n=1, 3%). In total, three isolates of six C. glabrata species had dose-dependent sensitivity to fluconazole, and one C. parapsilosis was determined to be resistant. CONCLUSION The COVID-19 patients who are admitted to ICU have many risk factors associated with candidemia. The most common risk factors for the development of candidemia were mechanical ventilation, diabetes mellitus, neutrophilia, and low hemoglobin level. The most frequently isolated species was C. albicans. Moreover, caspofungin was found to be the most effective drug in vitro. No significant resistance pattern was detected against the isolated species. It should be noted that risk-stratified antifungal prophylaxis in the ICU is possible.
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Affiliation(s)
- Zehra Beştepe Dursun
- Health Science University, Kayseri Faculty of Medicine, Department of Infectious Diseases, Kayseri, Turkey
| | - Hilal Sipahioğlu
- Health Science University, Kayseri Faculty of Medicine, Department of Infectious Diseases, Kayseri, Turkey
| | - Recep Civan Yüksel
- Health Science University, Kayseri Faculty of Medicine, Department of Intensive Care Unit, Kayseri, Turkey
| | - Hafize Sav
- Health Science University, Kayseri Faculty of Medicine, Department of Mycology, Kayseri, Turkey
| | - İlhami Çelik
- Health Science University, Kayseri Faculty of Medicine, Department of Infectious Diseases, Kayseri, Turkey
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11
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Paudel S, Ghimire L, Jin L, Jeansonne D, Jeyaseelan S. Regulation of emergency granulopoiesis during infection. Front Immunol 2022; 13:961601. [PMID: 36148240 PMCID: PMC9485265 DOI: 10.3389/fimmu.2022.961601] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
During acute infectious and inflammatory conditions, a large number of neutrophils are in high demand as they are consumed in peripheral organs. The hematopoietic system rapidly responds to the demand by turning from steady state to emergency granulopoiesis to expedite neutrophil generation in the bone marrow (BM). How the hematopoietic system integrates pathogenic and inflammatory stress signals into the molecular cues of emergency granulopoiesis has been the subject of investigations. Recent studies in the field have highlighted emerging concepts, including the direct sensing of pathogens by BM resident or sentinel hematopoietic stem and progenitor cells (HSPCs), the crosstalk of HSPCs, endothelial cells, and stromal cells to convert signals to granulopoiesis, and the identification of novel inflammatory molecules, such as C/EBP-β, ROS, IL-27, IFN-γ, CXCL1 with direct effects on HSPCs. In this review, we will provide a detailed account of emerging concepts while reassessing well-established cellular and molecular players of emergency granulopoiesis. While providing our views on the discrepant results and theories, we will postulate an updated model of granulopoiesis in the context of health and disease.
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Affiliation(s)
- Sagar Paudel
- Center for Lung Biology and Disease, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States.,Department of Pathobiological Sciences, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Laxman Ghimire
- Center for Lung Biology and Disease, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States.,Department of Pathobiological Sciences, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Liliang Jin
- Center for Lung Biology and Disease, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States.,Department of Pathobiological Sciences, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Duane Jeansonne
- Center for Lung Biology and Disease, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States.,Department of Pathobiological Sciences, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Samithamby Jeyaseelan
- Center for Lung Biology and Disease, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States.,Department of Pathobiological Sciences, Louisiana State University (LSU) School of Veterinary Medicine, Baton Rouge, LA, United States.,Section of Pulmonary and Critical Care, Department of Medicine, LSU Health Sciences Center, New Orleans, LA, United States
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12
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Malengier-Devlies B, Metzemaekers M, Wouters C, Proost P, Matthys P. Neutrophil Homeostasis and Emergency Granulopoiesis: The Example of Systemic Juvenile Idiopathic Arthritis. Front Immunol 2021; 12:766620. [PMID: 34966386 PMCID: PMC8710701 DOI: 10.3389/fimmu.2021.766620] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/23/2021] [Indexed: 12/21/2022] Open
Abstract
Neutrophils are key pathogen exterminators of the innate immune system endowed with oxidative and non-oxidative defense mechanisms. More recently, a more complex role for neutrophils as decision shaping cells that instruct other leukocytes to fine-tune innate and adaptive immune responses has come into view. Under homeostatic conditions, neutrophils are short-lived cells that are continuously released from the bone marrow. Their development starts with undifferentiated hematopoietic stem cells that pass through different immature subtypes to eventually become fully equipped, mature neutrophils capable of launching fast and robust immune responses. During severe (systemic) inflammation, there is an increased need for neutrophils. The hematopoietic system rapidly adapts to this increased demand by switching from steady-state blood cell production to emergency granulopoiesis. During emergency granulopoiesis, the de novo production of neutrophils by the bone marrow and at extramedullary sites is augmented, while additional mature neutrophils are rapidly released from the marginated pools. Although neutrophils are indispensable for host protection against microorganisms, excessive activation causes tissue damage in neutrophil-rich diseases. Therefore, tight regulation of neutrophil homeostasis is imperative. In this review, we discuss the kinetics of neutrophil ontogenesis in homeostatic conditions and during emergency myelopoiesis and provide an overview of the different molecular players involved in this regulation. We substantiate this review with the example of an autoinflammatory disease, i.e. systemic juvenile idiopathic arthritis.
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Affiliation(s)
- Bert Malengier-Devlies
- Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Mieke Metzemaekers
- Department of Microbiology, Immunology and Transplantation, Laboratory of Molecular Immunology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Carine Wouters
- Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium.,Division of Pediatric Rheumatology, University Hospitals Leuven, Leuven, Belgium.,European Reference Network for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA) at University Hospital Leuven, Leuven, Belgium
| | - Paul Proost
- Department of Microbiology, Immunology and Transplantation, Laboratory of Molecular Immunology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Patrick Matthys
- Department of Microbiology, Immunology and Transplantation, Laboratory of Immunobiology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
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13
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Rajni E, Singh A, Tarai B, Jain K, Shankar R, Pawar K, Mamoria V, Chowdhary A. A High Frequency of Candida auris Blood Stream Infections in Coronavirus Disease 2019 Patients Admitted to Intensive Care Units, Northwestern India: A Case Control Study. Open Forum Infect Dis 2021; 8:ofab452. [PMID: 34904116 PMCID: PMC8522362 DOI: 10.1093/ofid/ofab452] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/06/2021] [Indexed: 12/20/2022] Open
Abstract
Background The ongoing pandemic of coronavirus disease 2019 (COVID-19) has overwhelmed healthcare facilities and raises an important novel concern of nosocomial transmission of Candida species in the intensive care units (ICUs). Methods We evaluated the incidence and risk factors for development of candidemia in 2384 COVID-19 patients admitted during August 2020–January 2021 in ICUs of 2 hospitals (Delhi and Jaipur) in India. A 1:2 case-control matching was used to identify COVID-19 patients who did not develop candidemia as controls. Results A total of 33 patients developed candidemia and accounted for an overall incidence of 1.4% over a median ICU stay of 24 days. A 2-fold increase in the incidence of candidemia in COVID-19 versus non-COVID-19 patients was observed with an incidence rate of 14 and 15/1000 admissions in 2 ICUs. Candida auris was the predominant species (42%) followed by Candida tropicalis. Multivariable regression analysis revealed the use of tocilizumab, duration of ICU stay (24 vs 14 days), and raised ferritin level as an independent predictor for the development of candidemia. Azole resistance was observed in C auris and C tropicalis harboring mutations in the azole target ERG11 gene. Multilocus sequence typing (MLST) identified identical genotypes of C tropicalis in COVID-19 patients, raising concern for nosocomial transmission of resistant strains. Conclusions Secondary bacterial infections have been a concern with the use of tocilizumab. In this cohort of critically ill COVID-19 patients, tocilizumab was associated with the development of candidemia. Surveillance of antifungal resistance is warranted to prevent transmission of multidrug-resistant strains of nosocomial yeasts in COVID-19 hospitalized patients.
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Affiliation(s)
- Ekadashi Rajni
- Department of Microbiology, Mahatma Gandhi University of Medical Science & Technology, Jaipur, Rajasthan, India
| | - Ashutosh Singh
- Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | | | - Kusum Jain
- Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.,Department of Zoology, Ramjas College, University of Delhi, Delhi, India
| | - Ravi Shankar
- Department of Biostatistics, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Kalpana Pawar
- Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Vedprakash Mamoria
- Department of Microbiology, Mahatma Gandhi University of Medical Science & Technology, Jaipur, Rajasthan, India
| | - Anuradha Chowdhary
- Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
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14
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Cahill C, Cox DJ, O’Connell F, Basdeo SA, Gogan KM, Ó’Maoldomhnaigh C, O’Sullivan J, Keane J, Phelan JJ. The Effect of Tuberculosis Antimicrobials on the Immunometabolic Profiles of Primary Human Macrophages Stimulated with Mycobacterium tuberculosis. Int J Mol Sci 2021; 22:ijms222212189. [PMID: 34830070 PMCID: PMC8624646 DOI: 10.3390/ijms222212189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/07/2021] [Accepted: 11/08/2021] [Indexed: 12/22/2022] Open
Abstract
Tuberculosis (TB) remains a global health challenge. Patients with drug-sensitive and drug-resistant TB undergo long, arduous, and complex treatment regimens, often involving multiple antimicrobials. While these drugs were initially implemented based on their bactericidal effects, some studies show that TB antimicrobials can also directly affect cells of the immune system, altering their immune function. As use of these antimicrobials has been the mainstay of TB therapy for over fifty years now, it is more important than ever to understand how these antimicrobials affect key pathways of the immune system. One such central pathway, which underpins the immune response to a variety of infections, is immunometabolism, namely glycolysis and oxidative phosphorylation (OXPHOS). We hypothesise that in addition to their direct bactericidal effect on Mycobacterium tuberculosis (Mtb), current TB antimicrobials can modulate immunometabolic profiles and alter mitochondrial function in primary human macrophages. Human monocyte-derived macrophages (hMDMs) were differentiated from PBMCs isolated from healthy blood donors, and treated with four first-line and six second-line TB antimicrobials three hours post stimulation with either iH37Rv-Mtb or lipopolysaccharide (LPS). 24 h post stimulation, baseline metabolism and mitochondrial function were determined using the Seahorse Extracellular Flux Analyser. The effect of these antimicrobials on cytokine and chemokine production was also assayed using Meso Scale Discovery Multi-Array technology. We show that some of the TB antimicrobials tested can significantly alter OXPHOS and glycolysis in uninfected, iH37Rv-Mtb, and LPS-stimulated hMDMs. We also demonstrate how these antimicrobial-induced immunometabolic effects are linked with alterations in mitochondrial function. Our results show that TB antimicrobials, specifically clofazimine, can modify host immunometabolism and mitochondrial function. Moreover, clofazimine significantly increased the production of IL-6 in human macrophages that were stimulated with iH37Rv-Mtb. This provides further insight into the use of some of these TB antimicrobials as potential host-directed therapies in patients with early and active disease, which could help to inform TB treatment strategies in the future.
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Affiliation(s)
- Christina Cahill
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, Dublin, Ireland; (C.C.); (D.J.C.); (S.A.B.); (K.M.G.); (C.Ó.); (J.K.)
| | - Dónal J. Cox
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, Dublin, Ireland; (C.C.); (D.J.C.); (S.A.B.); (K.M.G.); (C.Ó.); (J.K.)
| | - Fiona O’Connell
- Department of Surgery, Trinity Translational Medicine Institute, Trinity College Dublin, St James’s Hospital, Dublin 8, Ireland; (F.O.); (J.O.)
| | - Sharee A. Basdeo
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, Dublin, Ireland; (C.C.); (D.J.C.); (S.A.B.); (K.M.G.); (C.Ó.); (J.K.)
| | - Karl M. Gogan
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, Dublin, Ireland; (C.C.); (D.J.C.); (S.A.B.); (K.M.G.); (C.Ó.); (J.K.)
| | - Cilian Ó’Maoldomhnaigh
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, Dublin, Ireland; (C.C.); (D.J.C.); (S.A.B.); (K.M.G.); (C.Ó.); (J.K.)
| | - Jacintha O’Sullivan
- Department of Surgery, Trinity Translational Medicine Institute, Trinity College Dublin, St James’s Hospital, Dublin 8, Ireland; (F.O.); (J.O.)
| | - Joseph Keane
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, Dublin, Ireland; (C.C.); (D.J.C.); (S.A.B.); (K.M.G.); (C.Ó.); (J.K.)
| | - James J. Phelan
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, Dublin, Ireland; (C.C.); (D.J.C.); (S.A.B.); (K.M.G.); (C.Ó.); (J.K.)
- Correspondence: ; Tel.: +35-318-963-265
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15
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Serum Cytokine Profile in Patients with Candidemia versus Bacteremia. Pathogens 2021; 10:pathogens10101349. [PMID: 34684298 PMCID: PMC8537900 DOI: 10.3390/pathogens10101349] [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: 07/22/2021] [Revised: 10/13/2021] [Accepted: 10/13/2021] [Indexed: 11/17/2022] Open
Abstract
Bloodstream Candida infections constitute a major threat for hospitalized patients in intensive care units and immunocompromised hosts. Certain serum cytokines play a decisive role in anti-microbial host defense. Cytokines may act as discriminatory biomarkers that can significantly increase in candidemia compared to bacteremia patients. The concentration of secreted cytokine/chemokines was determined using a multiplexed cytometric bead array run on a cell analyzer. The cytokines tested during the study were interleukin (IL)-1β, IL-6, IL-17A, IL-10, IFN-γ, IL-4, IL-2, IL-8, IL-12p70 and the tumor necrosis factor (TNF)-α. The cytokines of 51 candidemia patients were characterized and compared to the cytokine levels of 20 bacteremia patients. Levels were significantly elevated in patients with bloodstream infections compared to healthy controls. Cytokines comprising IL-2, IL-17A, IL-6 and IL-10 were significantly elevated in the patients with bloodstream Candida infection as compared to the patients having bloodstream bacterial infections. The levels were found to be promising as a potential diagnostic marker for bloodstream Candida infections.
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16
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Beyranvand Nejad E, Labrie C, van Elsas MJ, Kleinovink JW, Mittrücker HW, Franken KLMC, Heink S, Korn T, Arens R, van Hall T, van der Burg SH. IL-6 signaling in macrophages is required for immunotherapy-driven regression of tumors. J Immunother Cancer 2021; 9:e002460. [PMID: 33879600 PMCID: PMC8061866 DOI: 10.1136/jitc-2021-002460] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND High serum interleukin (IL-6) levels may cause resistance to immunotherapy by modulation of myeloid cells in the tumor microenvironment. IL-6 signaling blockade is tested in cancer, but as this inflammatory cytokine has pleiotropic effects, this treatment is not always effective. METHODS IL-6 and IL-6R blockade was applied in an IL-6-mediated immunotherapy-resistant TC-1 tumor model (TC-1.IL-6) and immunotherapy-sensitive TC-1. CONTROL Effects on therapeutic vaccination-induced tumor regression, recurrence and survival as well on T cells and myeloid cells in the tumor microenvironment were studied. The effects of IL-6 signaling in macrophages under therapy conditions were studied in Il6rafl/fl×LysMcre+ mice. RESULTS Our therapeutic vaccination protocol elicits a strong tumor-specific CD8+ T-cell response, leading to enhanced intratumoral T-cell infiltration and recruitment of tumoricidal macrophages. Blockade of IL-6 signaling exacerbated tumor outgrowth, reflected by fewer complete regressions and more recurrences after therapeutic vaccination, especially in TC-1.IL-6 tumor-bearing mice. Early IL-6 signaling blockade partly inhibited the development of the vaccine-induced CD8+ T-cell response. However, the main mechanism was the malfunction of macrophages during therapy-induced tumor regression. Therapy efficacy was impaired in Il6rafl/fl×LysMcre+ but not cre-negative control mice, while no differences in the vaccine-induced CD8+ T-cell response were found between these mice. IL-6 signaling blockade resulted in decreased expression of suppressor of cytokine signaling 3, essential for effective M1-type function in macrophages, and increased expression of the phagocytic checkpoint molecule signal-regulatory protein alpha by macrophages. CONCLUSION IL-6 signaling is critical for macrophage function under circumstances of immunotherapy-induced tumor tissue destruction, in line with the acute inflammatory functions of IL-6 signaling described in infections.
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MESH Headings
- Animals
- CD8-Positive T-Lymphocytes/drug effects
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Cancer Vaccines/administration & dosage
- Cancer Vaccines/immunology
- Cell Line, Tumor
- Cytotoxicity, Immunologic/drug effects
- Female
- Injections, Subcutaneous
- Interleukin-6/metabolism
- Lymphocytes, Tumor-Infiltrating/drug effects
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/metabolism
- Mice, Inbred C57BL
- Mice, Knockout
- Neoplasms/drug therapy
- Neoplasms/immunology
- Neoplasms/metabolism
- Oligodeoxyribonucleotides/administration & dosage
- Oligodeoxyribonucleotides/immunology
- Papillomavirus E7 Proteins/administration & dosage
- Papillomavirus E7 Proteins/immunology
- Phenotype
- Receptors, Interleukin-6/genetics
- Receptors, Interleukin-6/metabolism
- Signal Transduction
- Tumor Burden/drug effects
- Tumor-Associated Macrophages/drug effects
- Tumor-Associated Macrophages/immunology
- Tumor-Associated Macrophages/metabolism
- Mice
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Affiliation(s)
- Elham Beyranvand Nejad
- Medical Oncology, Oncode institute, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Camilla Labrie
- Medical Oncology, Oncode institute, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Marit J van Elsas
- Medical Oncology, Oncode institute, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Jan Willem Kleinovink
- Medical Oncology, Oncode institute, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Hans-Willi Mittrücker
- Department of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kees L M C Franken
- Department of Immunology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Sylvia Heink
- Experimental Neuroimmunology, Technische Universität München, Munchen, Bayern, Germany
| | - Thomas Korn
- Experimental Neuroimmunology, Technische Universität München, Munchen, Bayern, Germany
| | - Ramon Arens
- Department of Immunology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Thorbald van Hall
- Medical Oncology, Oncode institute, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Sjoerd H van der Burg
- Medical Oncology, Oncode institute, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
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17
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Sari AP, Darnindro N, Yohanes A, Mokoagow MI. Role of tocilizumab for concomitant systemic fungal infection in severe COVID-19 patient: Case report. Medicine (Baltimore) 2021; 100:e25173. [PMID: 33761696 PMCID: PMC9282040 DOI: 10.1097/md.0000000000025173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/25/2021] [Indexed: 01/05/2023] Open
Abstract
RATIONALE Bacterial and fungal infections in Coronavirus Disease-19 (COVID-19) patients have been inadequately investigated and reported thus far. The safety profile of tocilizumab (TCZ) administration in candidemia patient still debatable. PATIENT CONCERNS A 54 year-old woman presenting with weakness on the left side of her body was diagnosed with COVID-19. After 7 days of admission, her condition worsened and developed respiratory distress and was having respiratory distress despite standard treatment. DIAGNOSES Acute respiratory distress syndrome (ARDS) in COVID 19 was diagnoses based on real time-PCR swab, deterioration of PaO2/FiO2 and increased of acute phase reactants. INTERVENTIONS Anti Interleukin-6 (IL-6) was considered to tackle her inflammatory condition. Prior to TCZ administration, blood culture was performed and the result came with Candida tropicalis in the absence of bacterial growth. OUTCOMES No major complications associated with intravenous antifungal or TCZ occurred. After 40 days of hospitalization, the patient's clinical condition improved and was finally discharged. LESSONS This case underscores the safety profile of giving TCZ in candidemia as a secondary infection in severe COVID-19 patient.
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Affiliation(s)
- Anggraini Permata Sari
- Department of Internal Medicine, Fatmawati General Hospital, South Jakarta, DKI Jakarta, Indonesia
| | - Nikko Darnindro
- Department of Internal Medicine, Fatmawati General Hospital, South Jakarta, DKI Jakarta, Indonesia
| | - Aryan Yohanes
- Department of Internal Medicine, Fatmawati General Hospital, South Jakarta, DKI Jakarta, Indonesia
| | - Muhammad Ikhsan Mokoagow
- Department of Internal Medicine, Fatmawati General Hospital, South Jakarta, DKI Jakarta, Indonesia
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18
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Yeo ECF, Brown MP, Gargett T, Ebert LM. The Role of Cytokines and Chemokines in Shaping the Immune Microenvironment of Glioblastoma: Implications for Immunotherapy. Cells 2021; 10:cells10030607. [PMID: 33803414 PMCID: PMC8001644 DOI: 10.3390/cells10030607] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/23/2021] [Accepted: 03/05/2021] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma is the most common form of primary brain tumour in adults. For more than a decade, conventional treatment has produced a relatively modest improvement in the overall survival of glioblastoma patients. The immunosuppressive mechanisms employed by neoplastic and non-neoplastic cells within the tumour can limit treatment efficacy, and this can include the secretion of immunosuppressive cytokines and chemokines. These factors can play a significant role in immune modulation, thus disabling anti-tumour responses and contributing to tumour progression. Here, we review the complex interplay between populations of immune and tumour cells together with defined contributions by key cytokines and chemokines to these intercellular interactions. Understanding how these tumour-derived factors facilitate the crosstalk between cells may identify molecular candidates for potential immunotherapeutic targeting, which may enable better tumour control and improved patient survival.
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Affiliation(s)
- Erica C. F. Yeo
- Translational Oncology Laboratory, Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA 5001, Australia; (E.C.F.Y.); (M.P.B.); (T.G.)
- Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Michael P. Brown
- Translational Oncology Laboratory, Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA 5001, Australia; (E.C.F.Y.); (M.P.B.); (T.G.)
- Cancer Clinical Trials Unit, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5000, Australia
| | - Tessa Gargett
- Translational Oncology Laboratory, Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA 5001, Australia; (E.C.F.Y.); (M.P.B.); (T.G.)
- Cancer Clinical Trials Unit, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5000, Australia
| | - Lisa M. Ebert
- Translational Oncology Laboratory, Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA 5001, Australia; (E.C.F.Y.); (M.P.B.); (T.G.)
- Cancer Clinical Trials Unit, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5000, Australia
- Correspondence:
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19
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Guimarães ES, Martins JM, Gomes MTR, Cerqueira DM, Oliveira SC. Lack of Interleukin-6 Affects IFN-γ and TNF-α Production and Early In Vivo Control of Brucella abortus Infection. Pathogens 2020; 9:pathogens9121040. [PMID: 33322581 PMCID: PMC7764695 DOI: 10.3390/pathogens9121040] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/06/2020] [Accepted: 12/09/2020] [Indexed: 12/20/2022] Open
Abstract
Interleukin-6 (IL-6) is a pleiotropic cytokine promptly produced in response to infections, which contributes to host defense through the stimulation of acute phase immune responses. Brucella abortus is an intracellular bacterium that causes chronic disease in humans and domestic animals and triggers a robust immune response, characterized by the production of inflammatory cytokines. However, the mechanisms of IL-6-related immune responses in the context of Brucella infections are not completely understood. In this report, we describe an increased susceptibility of IL-6 knockout (KO) mice in the early phase of Brucella infection. Furthermore, we demonstrate that IL-6 is required for interferon (IFN)-γ and tumor necrosis factor (TNF)-α induction by infected splenocytes, indicating a protective role for IL-6 against B. abortus that parallels with Th1 type of immune response. Additionally, IL-6 KO mice exhibited reduced splenomegaly during the early phase of the infection. Corroborating this result, IL-6 KO mice displayed reduced numbers of macrophages, dendritic cells, and neutrophils in the spleen and reduced myeloperoxidase activity in the liver compared to wild-type infected mice. However, we demonstrate that IL-6 is not involved in B. abortus intracellular restriction in mouse macrophages. Taken together, our findings demonstrate that IL-6 contributes to host resistance during the early phase of B. abortus infection in vivo, and suggest that its protective role maybe partially mediated by proinflammatory immune responses and immune cell recruitment.
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Affiliation(s)
- Erika S. Guimarães
- Department of Genetics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil;
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil; (J.M.M.); (M.T.R.G.); (D.M.C.)
| | - Jéssica M. Martins
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil; (J.M.M.); (M.T.R.G.); (D.M.C.)
| | - Marco Túlio R. Gomes
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil; (J.M.M.); (M.T.R.G.); (D.M.C.)
| | - Daiane M. Cerqueira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil; (J.M.M.); (M.T.R.G.); (D.M.C.)
| | - Sergio C. Oliveira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil; (J.M.M.); (M.T.R.G.); (D.M.C.)
- Correspondence:
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20
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Lupo F, Rousseau M, Canton T, Ingersoll MA. The Immune System Fails to Mount a Protective Response to Gram-Positive or Gram-Negative Bacterial Prostatitis. THE JOURNAL OF IMMUNOLOGY 2020; 205:2763-2777. [PMID: 33055280 DOI: 10.4049/jimmunol.2000587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/12/2020] [Indexed: 11/19/2022]
Abstract
Bacterial prostatitis affects 1% of men, with increased incidence in the elderly. Acute bacterial prostatitis frequently progresses to chronicity, marked by recurrent episodes interspersed with asymptomatic periods of variable duration. Antibiotic treatment is standard of care; however, dissemination of antimicrobially resistant uropathogens threatens therapy efficacy. Thus, development of nonantibiotic-based approaches to treat chronic disease is a priority. Currently, why chronic prostatitis arises is unclear, as the immune response to prostate infection is incompletely understood. As 80% of prostatitis cases are caused by Gram-negative uropathogenic Escherichia coli (UPEC) or Gram-positive Enterococcus faecalis, we used a mouse transurethral instillation model to address the hypothesis that an innate immune response fails to develop following prostate infection with these uropathogens, leading to chronic disease. Surprisingly, infection induced robust proinflammatory cytokine expression and myeloid cell infiltration. Following a second infection, cytokine responses and innate cell infiltration were largely comparable to primary infection. Characteristic of memory responses, more lymphoid cells infiltrated the prostate in a second infection compared with a first, suggesting that adaptive immunity develops to eliminate the pathogens. Unexpectedly, bacterial burden in prostates challenged with either UPEC or E. faecalis was equal or greater than primary infection despite that a protective adaptive response to UPEC infection was evident in the bladder of the same animals. Our findings support that chronic or recurrent prostatitis develops despite strong innate immune responses and may be the result of a failure to develop immune memory to infection, pointing to actionable targets for immunotherapy.
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Affiliation(s)
- Federico Lupo
- Department of Immunology, Institut Pasteur, 75015 Paris, France; and INSERM U1223, 75015 Paris, France
| | - Matthieu Rousseau
- Department of Immunology, Institut Pasteur, 75015 Paris, France; and INSERM U1223, 75015 Paris, France
| | - Tracy Canton
- Department of Immunology, Institut Pasteur, 75015 Paris, France; and INSERM U1223, 75015 Paris, France
| | - Molly A Ingersoll
- Department of Immunology, Institut Pasteur, 75015 Paris, France; and INSERM U1223, 75015 Paris, France
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21
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Bhaskaran N, Faddoul F, Paes da Silva A, Jayaraman S, Schneider E, Mamileti P, Weinberg A, Pandiyan P. IL-1β-MyD88-mTOR Axis Promotes Immune-Protective IL-17A +Foxp3 + Cells During Mucosal Infection and Is Dysregulated With Aging. Front Immunol 2020; 11:595936. [PMID: 33240286 PMCID: PMC7677307 DOI: 10.3389/fimmu.2020.595936] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/08/2020] [Indexed: 12/22/2022] Open
Abstract
CD4+Foxp3+Tregs maintain immune homeostasis, but distinct mechanisms underlying their functional heterogeneity during infections are driven by specific cytokine milieu. Here we show that MyD88 deletion in Foxp3+ cells altered their function and resulted in increased fungal burden and immunopathology during oral Candida albicans (CA) challenge. Excessive inflammation due to the absence of MyD88 in Tregs coincided with a reduction of the unique population of IL-17A expressing Foxp3+ cells (Treg17) and an increase in dysfunctional IFN-γ+/Foxp3+ cells (TregIFN-γ) in infected mice. Failure of MyD88-/- Tregs to regulate effector CD4+ T cell functions correlated with heightened levels of IFN-γ in CD4+ T cells, as well as increased infiltration of inflammatory monocytes and neutrophils in oral mucosa in vivo. Mechanistically, IL-1β/MyD88 signaling was required for the activation of IRAK-4, Akt, and mTOR, which led to the induction and proliferation of Treg17 cells. In the absence of IL-1 receptor signaling, Treg17 cells were reduced, but IL-6-driven expansion of TregIFN-γ cells was increased. This mechanism was physiologically relevant during Candida infection in aged mice, as they exhibited IL-1 receptor/MyD88 defect in Foxp3+ cells, loss of p-mTORhighTreg17 cells and reduced levels of IL-1β in oral mucosa, which coincided with persistent tongue inflammation. Concurrent with Treg dysfunction, aging was associated with increased CD4+ T cell hyperactivation and heightened levels of IL-6 in mice and humans in oral mucosa in vivo. Taken together, our data identify IL-1β/MyD88/Treg axis as a new component that modulates inflammatory responses in oral mucosa. Also, dysregulation of this axis in an aging immune system may skew host defense towards an immunopathological response in mucosal compartments.
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Affiliation(s)
- Natarajan Bhaskaran
- Department of Biological Sciences, Case Western Reserve University, Cleveland, OH, United States
| | - Fady Faddoul
- Advanced Education in General Dentistry, Case Western Reserve University, Cleveland, OH, United States
| | - Andre Paes da Silva
- Department of Periodontics, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Sangeetha Jayaraman
- Department of Biological Sciences, Case Western Reserve University, Cleveland, OH, United States
| | - Elizabeth Schneider
- Department of Biological Sciences, Case Western Reserve University, Cleveland, OH, United States
| | - Prerna Mamileti
- Department of Biological Sciences, Case Western Reserve University, Cleveland, OH, United States
| | - Aaron Weinberg
- Department of Biological Sciences, Case Western Reserve University, Cleveland, OH, United States
| | - Pushpa Pandiyan
- Department of Biological Sciences, Case Western Reserve University, Cleveland, OH, United States.,Department of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
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22
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New insight of red seaweed derived Callophycin A as an alternative strategy to treat drug resistance vaginal candidiasis. Bioorg Chem 2020; 104:104256. [PMID: 32942217 DOI: 10.1016/j.bioorg.2020.104256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/07/2020] [Accepted: 08/30/2020] [Indexed: 12/12/2022]
Abstract
Marine natural products are recognised as one among the major contributors of several important biological functions. The arguments has made to utilization of natural products against different kinds of infectious diseases. In the present study, Callophycin A was successfully prepared and its anti-candidal activity was evaluated through in-vitro and in-vivo methods. The in-vitro results revealed that, Callophycin A significantly inhibits the azole resistant and sensitive C. albicans. Further, in-vivo animal experiments have shown the effective reduction in CFU of C. albicans from its beginning day of the treatment as compared to the disease control group. At the end of Callophycin A administration, there was a decrease in inflammatory response and immune molecules such as IL-6, IL-12, IL-17, IL-22, TNF-α, macrophages, CD4 and CD8 cells were observed. Whereas the animals in the disease control group expressed all the parameters with the elevated level as compared to the control group. There are no hematological abnormalities such as neutropenia, lymphocytosis and eosinophilia was observed in any animal groups except the disease control group. Finally, the evidence based prediction of anti-candidal efficacious of Callophycin A was demonstrated.
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23
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Jaillon S, Ponzetta A, Di Mitri D, Santoni A, Bonecchi R, Mantovani A. Neutrophil diversity and plasticity in tumour progression and therapy. Nat Rev Cancer 2020; 20:485-503. [PMID: 32694624 DOI: 10.1038/s41568-020-0281-y] [Citation(s) in RCA: 504] [Impact Index Per Article: 126.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/04/2020] [Indexed: 12/11/2022]
Abstract
Neutrophils play a key role in defence against infection and in the activation and regulation of innate and adaptive immunity. In cancer, tumour-associated neutrophils (TANs) have emerged as an important component of the tumour microenvironment. Here, they can exert dual functions. TANs can be part of tumour-promoting inflammation by driving angiogenesis, extracellular matrix remodelling, metastasis and immunosuppression. Conversely, neutrophils can also mediate antitumour responses by direct killing of tumour cells and by participating in cellular networks that mediate antitumour resistance. Neutrophil diversity and plasticity underlie the dual potential of TANs in the tumour microenvironment. Myeloid checkpoints as well as the tumour and tissue contexture shape neutrophil function in response to conventional therapies and immunotherapy. We surmise that neutrophils can provide tools to tailor current immunotherapy strategies and pave the way to myeloid cell-centred therapeutic strategies, which would be complementary to current approaches.
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Affiliation(s)
- Sebastien Jaillon
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy.
- Humanitas Clinical and Research Center IRCCS, Rozzano (MI), Italy.
| | - Andrea Ponzetta
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Humanitas Clinical and Research Center IRCCS, Rozzano (MI), Italy
| | - Diletta Di Mitri
- Humanitas Clinical and Research Center IRCCS, Rozzano (MI), Italy
| | - Angela Santoni
- Dipartimento di Medicina Molecolare Istituto Pasteur-Fondazione Cenci Bolognetti, Università di Roma 'La Sapienza', Rome, Italy
- IRCCS Neuromed, Pozzilli (IS), Italy
| | - Raffaella Bonecchi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy
- Humanitas Clinical and Research Center IRCCS, Rozzano (MI), Italy
| | - Alberto Mantovani
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI), Italy.
- Humanitas Clinical and Research Center IRCCS, Rozzano (MI), Italy.
- The William Harvey Research Institute, Queen Mary University of London, London, UK.
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24
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Vargas G, Honorato L, Guimarães AJ, Rodrigues ML, Reis FCG, Vale AM, Ray A, Nosanchuk JD, Nimrichter L. Protective effect of fungal extracellular vesicles against murine candidiasis. Cell Microbiol 2020; 22:e13238. [PMID: 32558196 DOI: 10.1111/cmi.13238] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/07/2020] [Accepted: 06/09/2020] [Indexed: 12/17/2022]
Abstract
Extracellular vesicles (EVs) are lipid bilayered compartments released by virtually all living cells, including fungi. Among the diverse molecules carried by fungal EVs, a number of immunogens, virulence factors and regulators have been characterised. Within EVs, these components could potentially impact disease outcomes by interacting with the host. From this perspective, we previously demonstrated that EVs from Candida albicans could be taken up by and activate macrophages and dendritic cells to produce cytokines and express costimulatory molecules. Moreover, pre-treatment of Galleria mellonella larvae with fungal EVs protected the insects against a subsequent lethal infection with C. albicans yeasts. These data indicate that C. albicans EVs are multi-antigenic compartments that activate the innate immune system and could be exploited as vaccine formulations. Here, we investigated whether immunisation with C. albicans EVs induces a protective effect against murine candidiasis in immunosuppressed mice. Total and fungal antigen-specific serum IgG antibodies increased by 21 days after immunisation, confirming the efficacy of the protocol. Vaccination decreased fungal burden in the liver, spleen and kidney of mice challenged with C. albicans. Splenic levels of cytokines indicated a lower inflammatory response in mice immunised with EVs when compared with EVs + Freund's adjuvant (ADJ). Higher levels of IL-12p70, TNFα and IFNγ were detected in mice vaccinated with EVs + ADJ, while IL-12p70, TGFβ, IL-4 and IL-10 were increased when no adjuvants were added. Full protection of lethally challenged mice was observed when EVs were administered, regardless the presence of adjuvant. Physical properties of the EVs were also investigated and EVs produced by C. albicans were relatively stable after storage at 4, -20 or -80°C, keeping their ability to activate dendritic cells and to protect G. mellonella against a lethal candidiasis. Our data suggest that fungal EVs could be a safe source of antigens to be exploited in vaccine formulations.
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Affiliation(s)
- Gabriele Vargas
- Laboratório de Glicobiologia de Eucariotos, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leandro Honorato
- Laboratório de Glicobiologia de Eucariotos, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Allan Jefferson Guimarães
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Brazil
| | - Marcio L Rodrigues
- Instituto Carlos Chagas, Fundação Oswaldo Cruz (Fiocruz), Curitiba, Brazil.,Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Flavia C G Reis
- Instituto Carlos Chagas, Fundação Oswaldo Cruz (Fiocruz), Curitiba, Brazil.,Centro de Desenvolvimento Tecnológico em Saúde (CDTS), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - André M Vale
- Laboratório de Biologia de Linfócitos, Instituto de Biofísica Carlos Chagas Filho - Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Anjana Ray
- Department of Medicine - Hematology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Joshua Daniel Nosanchuk
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA.,Division of Infectious Diseases, Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Leonardo Nimrichter
- Laboratório de Glicobiologia de Eucariotos, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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25
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Tocilizumab for cytokine storm syndrome in COVID-19 pneumonia: an increased risk for candidemia? Autoimmun Rev 2020; 19:102564. [PMID: 32376396 PMCID: PMC7200127 DOI: 10.1016/j.autrev.2020.102564] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 12/25/2022]
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26
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Wang Q, Wang C, Yang M, Li X, Cui J, Wang C. Diagnostic efficacy of serum cytokines and chemokines in patients with candidemia and bacteremia. Cytokine 2020; 130:155081. [PMID: 32247169 DOI: 10.1016/j.cyto.2020.155081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 03/18/2020] [Accepted: 03/25/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND The role of serum cytokines/chemokines in differential diagnosis between fungal infections and bacterial infections have not been fully understood. This study aims to measure the serum levels of cytokines/chemokines in cases of candidemia and to compare them with those observed in cases of bacteremia. MATERIAL AND METHODS Patients with febrile episodes and were identified as bloodstream infections through blood culture were enrolled, while healthy people were included as control group. Fourteen serum cytokine and chemokine levels were detected with multiplex platform. ROC analysis was performed and an area under the curve (AUC), sensitivity and specificity values were calculated to determine the efficacy of various cytokines and chemokines for candidemia and bacteremia. Binary logistic regression was performed to further explore the combination mode of cytokines and chemokines, which could increase the diagnostic efficiency. RESULTS We included 40 patients with an episode of microbiologically proven fungal infection, 175 patients with bacteremia (85 with Gram-positive bacteremia and 90 with Gram-negative bacteremia) and another 30 healthy controls. Routine laboratory parameters including CRP and PCT were not statistically significant between candidemia group and bacteremia group (both gram-positive and gram-negative). There were significantly higher levels of IFN-γ, TNF-α, IL-10 and lower levels of IL-3, IL-4 in candidemia group, compared with gram-positive and gram-negative bacteremia groups. G-CSF was significantly lower and MIP-1β was higher in candidemia group, when compared with gram-negative bacteremia group. While IL-6, IL-8 and IL-17 were all significantly higher in candidemia group, when compared with gram-positive bacteremia group. Combination of IFN-γ and IL-17 could improve the diagnostic efficiency between candidemia and gram-positive bacteremia, with the AUROC of 0.873 (95% CI: 0.767-0.929). While combination of G-CSF and MIP-1β improved the diagnostic efficiency between candidemia and gram-negative bacteremia, with the AUROC of 0.896 (95% CI: 0.792-0.939). CONCLUSION Our study demonstrates that serum cytokines and chemokines including IFN-γ, MIP-1β, IL-17 and G-CSF could be considered as diagnostic markers to distinguish between candidemia and bacteremia. Combination of these biomarkers might improve the diagnostic efficiency of candidemia when compared with bacteremia.
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Affiliation(s)
- Qi Wang
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing 100853, China; Department of Orthopedics, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing 100853, China
| | - Chi Wang
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing 100853, China
| | - Ming Yang
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing 100853, China; Department of Clinical Laboratory, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xinjun Li
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing 100853, China
| | - Jiayue Cui
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing 100853, China; School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Chengbin Wang
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing 100853, China.
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27
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Arshad S, Naveed M, Ullia M, Javed K, Butt A, Khawar M, Amjad F. Targeting STAT-3 signaling pathway in cancer for development of novel drugs: Advancements and challenges. Genet Mol Biol 2020; 43:e20180160. [PMID: 32167126 PMCID: PMC7198026 DOI: 10.1590/1678-4685-gmb-2018-0160] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 10/20/2018] [Indexed: 12/25/2022] Open
Abstract
Signal transducers and activators of transcription 3 (STAT-3) is a transcription
factor that regulates the gene expression of several target genes. These factors
are activated by the binding of cytokines and growth factors with STAT-3
specific receptors on cell membrane. Few years ago, STAT-3 was considered an
acute phase response element having several cellular functions such as
inflammation, cell survival, invasion, metastasis and proliferation, genetic
alteration, and angiogenesis. STAT-3 is activated by several types of
inflammatory cytokines, carcinogens, viruses, growth factors, and oncogenes.
Thus, the STAT3 pathway is a potential target for cancer therapeutics. Abnormal
STAT-3 activity in tumor development and cellular transformation can be targeted
by several genomic and pharmacological methodologies. An extensive review of the
literature has been conducted to emphasize the role of STAT-3 as a unique cancer
drug target. This review article discusses in detail the wide range of STAT-3
inhibitors that show antitumor effects both in vitro and
in vivo. Thus, targeting constitutive STAT-3 signaling is a
remarkable therapeutic methodology for tumor progression. Finally, current
limitations, trials and future perspectives of STAT-3 inhibitors are also
critically discussed.
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Affiliation(s)
- Sundas Arshad
- University of Lahore, Department of Allied Health Sciences, Gujrat Campus, Pakistan
| | - Muhammad Naveed
- University of Central Punjab, Faculty of life sciences, Department of Biotechnology, Lahore, Pakistan
| | - Mahad Ullia
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
| | - Khadija Javed
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
| | - Ayesha Butt
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
| | - Masooma Khawar
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
| | - Fazeeha Amjad
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
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28
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Wang Q, Yang M, Wang C, Cui J, Li X, Wang C. Diagnostic efficacy of serum cytokines and chemokines in fungal bloodstream infection in febrile patients. J Clin Lab Anal 2020; 34:e23149. [PMID: 31971308 PMCID: PMC7171303 DOI: 10.1002/jcla.23149] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 11/04/2019] [Accepted: 11/12/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The role of serum cytokines/chemokines in early diagnosis of fungal infections has not been clearly clarified yet. This study aims to measure the serum levels of cytokines/chemokines in cases of fungemia and to compare them with culture-negative controls. METHODS In total, fourteen types of serum cytokines and chemokines from 41 patients with fungemia were compared with 57 patients with negative blood culture results. The cytokine and chemokine levels were detected with multiplex platform. We then performed statistical analysis as a two-tailed P < .05. ROC analysis was performed, and an area under the curve (AUC), and sensitivity and specificity values were calculated to determine the efficacy of various cytokines and chemokines for fungemia. Binary logistic regression was performed to further explore the combination mode of cytokines and chemokines, which could increase the diagnostic efficiency. RESULTS C-reactive protein and procalcitonin were significantly higher compared with those in negative control group, while white blood cell, percentage of neutrophil, percentage of lymphocyte, and ratio of neutrophil and lymphocyte did not differentiate between two groups. Serum levels of IFN-γ, TNF-α, MIP-1β, IL-6, IL-8, IL-10, IL-12p70, and IL-17 were significantly higher in patients with fungemia compared with the control group. Combination of MIP-1β and IL-17 could improve the AUC, sensitivity, and specificity for the diagnosis of fungemia. CONCLUSION Our study demonstrates that serum cytokines and chemokines including IFN-γ, TNF-α, MIP-1β, IL-6, IL-8, IL-10, IL-12p70, and IL-17 could be considered as diagnostic markers for fungemia. Combination of these biomarkers might improve the diagnostic efficiency of fungemia.
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Affiliation(s)
- Qi Wang
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing, China.,Department of Orthopedics, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing, China
| | - Ming Yang
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing, China.,Department of Clinical Laboratory, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Chi Wang
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing, China
| | - Jiayue Cui
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing, China.,School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xinjun Li
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing, China
| | - Chengbin Wang
- Department of Clinical Laboratory Medicine, Chinese PLA General Hospital & Medical School of Chinese PLA, Beijing, China
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29
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Konwar C, Del Gobbo GF, Terry J, Robinson WP. Association of a placental Interleukin-6 genetic variant (rs1800796) with DNA methylation, gene expression and risk of acute chorioamnionitis. BMC MEDICAL GENETICS 2019; 20:36. [PMID: 30795743 PMCID: PMC6387541 DOI: 10.1186/s12881-019-0768-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 02/18/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Acute chorioamnionitis (aCA), inflammation of the placenta and fetal membranes, is a frequently reported lesion in preterm deliveries. Genetic variants in innate immune system genes such as Interleukin-6 (IL6) may contribute to the placenta's inflammatory response, thus predisposing some pregnancies to aCA. These genetic variants may modulate molecular processes such as DNA methylation and gene expression, and in turn might affect susceptibility to aCA. Currently, there is remarkably little research on the role of fetal (placental) genetic variation in aCA. We aimed to explore the associations between genetic variants in candidate immune-system genes and susceptibility towards inflammatory responses in the placenta, which is linked to a strong inflammatory response in the newborn. METHODS DNA samples from 269 placentas (72 aCA cases, 197 non-aCA cases) were collected for this study. Samples were genotyped at 55 ancestry informative markers (AIMs) and 16 additional single nucleotide polymorphisms (SNPs) in 12 candidate innate immune system genes using the Sequenom iPLEX Gold Assay. Publicly available datasets were used to obtain DNA methylation (GSE100197, GSE74738, GSE115508, GSE44667, GSE98224) and gene expression data (GSE44711, GSE98224). RESULTS Differences in IL6 placental allele frequencies were associated with aCA (rs1800796, p = 0.04) with the CC genotype specifically implicated (OR = 3.1; p = 0.02). In a subset of the placental samples (n = 67; chorionic villi), we showed that the IL6 SNP (rs1800796) was associated with differential DNA methylation in five IL6-related CpG sites (cg01770232, cg02335517, cg07998387, cg13104385, and cg0526589), where individuals with a CC genotype showed higher DNA methylation levels than individuals carrying the GG genotype. Using two publicly available datasets, we observed that the DNA methylation levels at cg01770232 negatively correlated with IL6 gene expression in the placenta (r = - 0.67, p < 0.004; r = - 0.56, p < 2.937e-05). CONCLUSIONS We demonstrated that the minor C allele at the IL6 SNP (rs1800796), which is largely limited to East Asian populations, is associated with the presence of aCA. This SNP was associated with increased DNA methylation at a nearby MEPC2 binding site, which was also associated with decreased expression of IL6 in the placenta. Decreased expression of IL6 may increase vulnerability to microbial infection. Additional studies are required to confirm this association in Asian populations with larger sample sizes.
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Affiliation(s)
- Chaini Konwar
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1 Canada
| | - Giulia F. Del Gobbo
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1 Canada
| | - Jefferson Terry
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- Department of Pathology, BC Children’s Hospital, Vancouver, BC V6H 3N1 Canada
| | - Wendy P. Robinson
- BC Children’s Hospital Research Institute, 950 W 28th Ave, Vancouver, BC V5Z 4H4 Canada
- Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1 Canada
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30
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Velicky P, Meinhardt G, Plessl K, Vondra S, Weiss T, Haslinger P, Lendl T, Aumayr K, Mairhofer M, Zhu X, Schütz B, Hannibal RL, Lindau R, Weil B, Ernerudh J, Neesen J, Egger G, Mikula M, Röhrl C, Urban AE, Baker J, Knöfler M, Pollheimer J. Genome amplification and cellular senescence are hallmarks of human placenta development. PLoS Genet 2018; 14:e1007698. [PMID: 30312291 PMCID: PMC6200260 DOI: 10.1371/journal.pgen.1007698] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 10/24/2018] [Accepted: 09/17/2018] [Indexed: 12/16/2022] Open
Abstract
Genome amplification and cellular senescence are commonly associated with pathological processes. While physiological roles for polyploidization and senescence have been described in mouse development, controversy exists over their significance in humans. Here, we describe tetraploidization and senescence as phenomena of normal human placenta development. During pregnancy, placental extravillous trophoblasts (EVTs) invade the pregnant endometrium, termed decidua, to establish an adapted microenvironment required for the developing embryo. This process is critically dependent on continuous cell proliferation and differentiation, which is thought to follow the classical model of cell cycle arrest prior to terminal differentiation. Strikingly, flow cytometry and DNAseq revealed that EVT formation is accompanied with a genome-wide polyploidization, independent of mitotic cycles. DNA replication in these cells was analysed by a fluorescent cell-cycle indicator reporter system, cell cycle marker expression and EdU incorporation. Upon invasion into the decidua, EVTs widely lose their replicative potential and enter a senescent state characterized by high senescence-associated (SA) β-galactosidase activity, induction of a SA secretory phenotype as well as typical metabolic alterations. Furthermore, we show that the shift from endocycle-dependent genome amplification to growth arrest is disturbed in androgenic complete hydatidiform moles (CHM), a hyperplastic pregnancy disorder associated with increased risk of developing choriocarinoma. Senescence is decreased in CHM-EVTs, accompanied by exacerbated endoreduplication and hyperploidy. We propose induction of cellular senescence as a ploidy-limiting mechanism during normal human placentation and unravel a link between excessive polyploidization and reduced senescence in CHM.
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Affiliation(s)
- Philipp Velicky
- Department of Obstetrics and Gynaecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
| | - Gudrun Meinhardt
- Department of Obstetrics and Gynaecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
| | - Kerstin Plessl
- Department of Obstetrics and Gynaecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
| | - Sigrid Vondra
- Department of Obstetrics and Gynaecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
| | - Tamara Weiss
- Children's Cancer Research Institute, St. Anna Children´s Hospital, Vienna, Austria
| | - Peter Haslinger
- Department of Obstetrics and Gynaecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
| | - Thomas Lendl
- Biooptics Facility of Institute of Molecular Pathology, Institute of Molecular Biotechnology and Gregor Mendel Institute, Vienna, Austria
| | - Karin Aumayr
- Biooptics Facility of Institute of Molecular Pathology, Institute of Molecular Biotechnology and Gregor Mendel Institute, Vienna, Austria
| | - Mario Mairhofer
- Department of Gynecological Endocrinology and Reproductive Medicine, Medical University of Vienna, Vienna, Austria
| | - Xiaowei Zhu
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California, United States of America
| | - Birgit Schütz
- Center for Pathobiochemistry and Genetics, Medical University of Vienna, Vienna, Austria
| | - Roberta L. Hannibal
- Department of Genetics, Stanford University School of Medicine, Stanford, California, United States of America
| | - Robert Lindau
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Beatrix Weil
- Center for Pathobiochemistry and Genetics, Medical University of Vienna, Vienna, Austria
| | - Jan Ernerudh
- Department of Clinical Immunology and Transfusion Medicine, and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Jürgen Neesen
- Center for Pathobiochemistry and Genetics, Medical University of Vienna, Vienna, Austria
| | - Gerda Egger
- Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria
| | - Mario Mikula
- Center for Pathobiochemistry and Genetics, Medical University of Vienna, Vienna, Austria
| | - Clemens Röhrl
- Center for Pathobiochemistry and Genetics, Medical University of Vienna, Vienna, Austria
| | - Alexander E. Urban
- Department of Psychiatry and Behavioral Sciences, Department of Genetics, Stanford University School of Medicine, Tasha and John Morgridge Faculty Scholar, Stanford Child Health Research Institute, Stanford, California, United States of America
| | - Julie Baker
- Department of Genetics, Stanford University School of Medicine, Stanford, California, United States of America
| | - Martin Knöfler
- Department of Obstetrics and Gynaecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
| | - Jürgen Pollheimer
- Department of Obstetrics and Gynaecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
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31
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Jones SA, Jenkins BJ. Recent insights into targeting the IL-6 cytokine family in inflammatory diseases and cancer. Nat Rev Immunol 2018; 18:773-789. [DOI: 10.1038/s41577-018-0066-7] [Citation(s) in RCA: 435] [Impact Index Per Article: 72.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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32
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Lücke K, Yan I, Krohn S, Volmari A, Klinge S, Schmid J, Schumacher V, Steinmetz OM, Rose-John S, Mittrücker HW. Control of Listeria monocytogenes infection requires classical IL-6 signaling in myeloid cells. PLoS One 2018; 13:e0203395. [PMID: 30169526 PMCID: PMC6118394 DOI: 10.1371/journal.pone.0203395] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 08/20/2018] [Indexed: 12/17/2022] Open
Abstract
IL-6 is required for the response of mice against Listeria monocytogenes. Control of infection depends on classical IL-6 signaling via membrane IL-6Rα, but IL-6 target cells and protective mechanisms remain unclear. We used mice with IL-6Rα-deficiency in T cells (Il6rafl/fl×CD4cre) or myeloid cells (Il6rafl/fl×LysMcre) to define the role of these cells in IL-6-mediated protection. Abrogation of IL-6Rα in T cells did not interfere with bacteria control and induction of TH1 and CD8+ T-cell responses. IL-6Rα-deficiency in myeloid cells caused significant defects in listeria control. This defect was not associated with reduced recruitment of granulocytes and inflammatory monocytes, and both cell populations were activated and not impaired in cytokine production. However, IL-6Rα-deficient inflammatory monocytes displayed diminished expression of IL-4Rα and of CD38, a protein required for phagocytosis and innate control of listeria. In vitro studies revealed that IL-4 and IL-6 cooperated in induction of CD38. In listeria-infected mice, phagocytic activity of inflammatory monocytes correlated with CD38 expression levels on cells and inflammatory monocytes of Il6rafl/fl×LysMcre mice were significantly impaired in phagocytosis. In conclusion, we demonstrate that inhibition of classical IL-6 signaling in myeloid cells causes alterations in differentiation and function of these cells, which subsequently prevent effective control of L. monocytogenes.
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Affiliation(s)
- Karsten Lücke
- Institute of Immunology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Isabell Yan
- Institute of Immunology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Sonja Krohn
- III. Medical Clinic and Polyclinic, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Annika Volmari
- I. Medical Clinic and Polyclinic, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Stefanie Klinge
- Institute of Immunology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Joanna Schmid
- Institute of Immunology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Valéa Schumacher
- Institute of Immunology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Oliver M. Steinmetz
- III. Medical Clinic and Polyclinic, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Rose-John
- Institute for Biochemistry, Medical Faculty, Christian Albrechts University, Kiel, Germany
| | - Hans-Willi Mittrücker
- Institute of Immunology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
- * E-mail:
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33
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Alwarawrah Y, Kiernan K, MacIver NJ. Changes in Nutritional Status Impact Immune Cell Metabolism and Function. Front Immunol 2018; 9:1055. [PMID: 29868016 PMCID: PMC5968375 DOI: 10.3389/fimmu.2018.01055] [Citation(s) in RCA: 280] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 04/27/2018] [Indexed: 12/15/2022] Open
Abstract
Immune cell function and metabolism are closely linked. Many studies have now clearly demonstrated that alterations in cellular metabolism influence immune cell function and that, conversely, immune cell function determines the cellular metabolic state. Less well understood, however, are the effects of systemic metabolism or whole organism nutritional status on immune cell function and metabolism. Several studies have demonstrated that undernutrition is associated with immunosuppression, which leads to both increased susceptibility to infection and protection against several types of autoimmune disease, whereas overnutrition is associated with low-grade, chronic inflammation that increases the risk of metabolic and cardiovascular disease, promotes autoreactivity, and disrupts protective immunity. Here, we review the effects of nutritional status on immunity and highlight the effects of nutrition on circulating cytokines and immune cell populations in both human studies and mouse models. As T cells are critical members of the immune system, which direct overall immune response, we will focus this review on the influence of systemic nutritional status on T cell metabolism and function. Several cytokines and hormones have been identified which mediate the effects of nutrition on T cell metabolism and function through the expression and action of key regulatory signaling proteins. Understanding how T cells are sensitive to both inadequate and overabundant nutrients may enhance our ability to target immune cell metabolism and alter immunity in both malnutrition and obesity.
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Affiliation(s)
- Yazan Alwarawrah
- Department of Pediatrics, Duke University Medical Center, Durham, NC, United States
| | - Kaitlin Kiernan
- Department of Immunology, Duke University Medical Center, Durham, NC, United States
| | - Nancie J MacIver
- Department of Pediatrics, Duke University Medical Center, Durham, NC, United States.,Department of Immunology, Duke University Medical Center, Durham, NC, United States.,Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, United States
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34
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Lionakis MS, Levitz SM. Host Control of Fungal Infections: Lessons from Basic Studies and Human Cohorts. Annu Rev Immunol 2017; 36:157-191. [PMID: 29237128 DOI: 10.1146/annurev-immunol-042617-053318] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In the last few decades, the AIDS pandemic and the significant advances in the medical management of individuals with neoplastic and inflammatory conditions have resulted in a dramatic increase in the population of immunosuppressed patients with opportunistic, life-threatening fungal infections. The parallel development of clinically relevant mouse models of fungal disease and the discovery and characterization of several inborn errors of immune-related genes that underlie inherited human susceptibility to opportunistic mycoses have significantly expanded our understanding of the innate and adaptive immune mechanisms that protect against ubiquitous fungal exposures. This review synthesizes immunological knowledge derived from basic mouse studies and from human cohorts and provides an overview of mammalian antifungal host defenses that show promise for informing therapeutic and vaccination strategies for vulnerable patients.
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Affiliation(s)
- Michail S Lionakis
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892;
| | - Stuart M Levitz
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01655;
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35
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Chen Y, Gong FY, Li ZJ, Gong Z, Zhou Z, Ma SY, Gao XM. A study on the risk of fungal infection with tofacitinib (CP-690550), a novel oral agent for rheumatoid arthritis. Sci Rep 2017; 7:6779. [PMID: 28754958 PMCID: PMC5533717 DOI: 10.1038/s41598-017-07261-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/27/2017] [Indexed: 01/09/2023] Open
Abstract
Tofacitinib (CP-690550), an oral Janus kinase inhibitor, has shown significant efficacy in the treatment of rheumatoid arthritis through blocking the signaling pathways of pro-inflammatory cytokines. However, recent evidence suggests that long-term tofacitinib treatment is associated with increased risk of infection (e.g. tuberculosis) in patients. In the present study, we illustrate that tofacitinib administration significantly reduced the survival rate of mice given lethal or sub-lethal dose challenge with Candida albicans. This was related to the ability of tofacitinib to reverse TNFα- and IFNγ-enhanced candidacidal activity of murine polymorph nuclear cells (PMNs) and also to suppress chemokine CXCL5 expression and PMN infiltration in the infected tissues of mice. More importantly, tofacitinib significantly antagonized the ability of TNFα, IFNγ and GM-CSF to boost human PMNs in phagocytosis and direct killing of C. albicans in vitro. It also down-regulated reactive oxygen production and neutrophil extracellular trap formation by human PMNs stimulated with yeast-derived β-glucans in the presence of TNFα, IFNγ or GM-CSF. Our data emphasizes a significantly increased risk for opportunistic fungal infection associated long-term tofacitinib treatment in humans, likely through antagonizing the PMN-boosting effect of pro-inflammatory cytokines.
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Affiliation(s)
- Yong Chen
- Institute of Biology and Medical Sciences (IBMS), School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Fang-Yuan Gong
- Institute of Biology and Medical Sciences (IBMS), School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China.
| | - Zhen-Jun Li
- Suzhou Kowloon Hospital, Shanghai Jiao Tong University School of Medicine, Suzhou, China
| | - Zheng Gong
- Institute of Biology and Medical Sciences (IBMS), School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Zhe Zhou
- Institute of Biology and Medical Sciences (IBMS), School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Shu-Yan Ma
- Institute of Biology and Medical Sciences (IBMS), School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Xiao-Ming Gao
- Institute of Biology and Medical Sciences (IBMS), School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China.
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36
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The role of IL-6 in host defence against infections: immunobiology and clinical implications. Nat Rev Rheumatol 2017; 13:399-409. [DOI: 10.1038/nrrheum.2017.83] [Citation(s) in RCA: 270] [Impact Index Per Article: 38.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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37
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Acanthamoeba Activates Macrophages Predominantly through Toll-Like Receptor 4- and MyD88-Dependent Mechanisms To Induce Interleukin-12 (IL-12) and IL-6. Infect Immun 2017; 85:IAI.01054-16. [PMID: 28348053 DOI: 10.1128/iai.01054-16] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/09/2017] [Indexed: 12/14/2022] Open
Abstract
Acanthamoeba castellanii is a ubiquitous free-living amoeba with a worldwide distribution that can occasionally infect humans, causing particularly severe infections in immunocompromised individuals. Dissecting the immunology of Acanthamoeba infections has been considered problematic due to the very low incidence of disease, despite the high exposure rates. While macrophages are acknowledged as playing a significant role in Acanthamoeba infections, little is known about how this facultative parasite influences macrophage activity. Therefore, in this study we investigated the effects of Acanthamoeba on the activation of resting macrophages. Consequently, murine bone marrow-derived macrophages were cocultured with trophozoites of either the laboratory Neff strain or a clinical isolate of A. castellaniiIn vitro real-time imaging demonstrated that trophozoites of both strains often established evanescent contact with macrophages. Both Acanthamoeba strains induced a proinflammatory macrophage phenotype characterized by the significant production of interleukin-12 (IL-12) and IL-6. However, macrophages cocultured with the clinical isolate of Acanthamoeba produced significantly less IL-12 and IL-6 than the Neff strain. The utilization of macrophages derived from MyD88-, TRIF-, Toll-like receptor 2 (TLR2)-, TLR4-, and TLR2/4-deficient mice indicated that Acanthamoeba-induced proinflammatory cytokine production was through MyD88-dependent, TRIF-independent, TLR4-induced events. This study shows for the first time the involvement of TLRs expressed on macrophages in the recognition of and response to Acanthamoeba trophozoites.
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38
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Temporal and tissue-specific requirements for T-lymphocyte IL-6 signalling in obesity-associated inflammation and insulin resistance. Nat Commun 2017; 8:14803. [PMID: 28466852 PMCID: PMC5418621 DOI: 10.1038/ncomms14803] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 01/31/2017] [Indexed: 02/06/2023] Open
Abstract
Low-grade inflammation links obesity to insulin resistance through the activation of tissue-infiltrating immune cells. Interleukin-6 (IL-6) is a crucial regulator of T cells and is increased in obesity. Here we report that classical IL-6 signalling in T cells promotes inflammation and insulin resistance during the first 8 weeks on a high-fat diet (HFD), but becomes dispensable at later stages (after 16 weeks). Mice with T cell-specific deficiency of IL-6 receptor-α (IL-6RαT-KO) exposed to a HFD display improved glucose tolerance, insulin sensitivity and inflammation in liver and EWAT after 8 weeks. However, after 16 weeks, insulin resistance in IL-6RαT-KO epididymal white adipose tissue (EWAT) is comparable to that of controls, whereas the inflammatory profile is significantly worse. This coincided with a shift from classical T cell IL-6 signalling at 8 weeks, to enhanced IL-6 trans-signalling at 16 weeks. Collectively, our studies reveal that IL-6 action in T cells through classical IL-6 signalling promotes inflammation and insulin resistance early during obesity development, which can be compensated for by enhanced IL-6 trans-signalling at later stages. Interleukin-6 (IL-6) is increased in obesity and activates T cells to promote inflammation. Here, Xu et al. use mice that lack IL-6 receptors on T cells to uncover the temporal and tissue-specific effects of classic and trans IL-6 signalling on inflammation and insulin resistance on a high-fat diet.
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39
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Regulation of Inflammation- and Infection-Driven Hematopoiesis. Trends Immunol 2017; 38:345-357. [DOI: 10.1016/j.it.2017.01.004] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 01/23/2017] [Accepted: 01/24/2017] [Indexed: 12/21/2022]
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40
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Zhu Q, Cai MY, Chen CL, Hu H, Lin HX, Li M, Weng DS, Zhao JJ, Guo L, Xia JC. Tumor cells PD-L1 expression as a favorable prognosis factor in nasopharyngeal carcinoma patients with pre-existing intratumor-infiltrating lymphocytes. Oncoimmunology 2017. [PMID: 28638740 DOI: 10.1080/2162402x.2017.1312240] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Programmed death ligand 1 (PD-L1) expression represents a mechanism of immune escape by inhibiting T cell immunity. This study systematically evaluated the expression of PD-L1, spatial distribution of CD3+ immune cells and the relationship of both factors to survival in nasopharyngeal carcinoma (NPC) patients. A total of 209 NPC patients treated between 1991 and 2000 were included. Pairs of TMAs were immunohistochemically stained with PD-L1 and CD3. Survival analysis was evaluated according to PD-L1 status and the spatial distribution of CD3+ immune cells in the primary lesion microenvironment. PD-L1 staining was observed on tumor cells and tumor-infiltrating immune cells (TILs); however, PD-L1-positive immune cells were more common (98/209) than PD-L1-positive tumor cells (68/209). Limited numbers of intra-tumoral CD3+ T cells (median number: 20) were detected. Patients with higher CD3+ T cell infiltration, both intratumorally and peritumorally, had higher PD-L1 expression on tumor cells (both p < 0.001) and immune cells (p = 0.002 and p < 0.001, respectively). Increasing intratumoral CD3 infiltration was correlated with increased overall survival (OS) (p = 0.008) and disease-free survival (DFS) (p = 0.003). Nevertheless, patients with low levels of peritumoral TILs showed superior OS (p = 0.557) and DFS to those with higher levels of peritumoral TILs (p = 0.671). Moreover, type classification based on intratumoral CD3 infiltration and tumor cell PD-L1 expression was an independent prognostic factor for NPC patients. PD-L1 expression on tumor cells is a favorable prognosis factor in NPC patients with pre-existing intratumor-infiltrating lymphocytes.
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Affiliation(s)
- Qian Zhu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China
| | - Mu-Yan Cai
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China
| | - Chang-Long Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China
| | - Hao Hu
- Department of Thoracic Surgery, Medical College of Nanchang University, Nanchang, People's Republic of China
| | - Huan-Xin Lin
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Radiotherapy, Sun Yat-Sen University Cancer Center, Guangzhou , People's Republic of China
| | - Min Li
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China
| | - De-Sheng Weng
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China
| | - Jing-Jing Zhao
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China
| | - Ling Guo
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China
| | - Jian-Chuan Xia
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China
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41
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BCAP inhibits proliferation and differentiation of myeloid progenitors in the steady state and during demand situations. Blood 2017; 129:1503-1513. [PMID: 28087538 DOI: 10.1182/blood-2016-06-719823] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 01/07/2017] [Indexed: 12/14/2022] Open
Abstract
B-cell adaptor for phosphatidylinositol 3-kinase (BCAP) is a signaling adaptor expressed in mature hematopoietic cells, including monocytes and neutrophils. Here we investigated the role of BCAP in the homeostasis and development of these myeloid lineages. BCAP-/- mice had more bone marrow (BM) monocytes than wild-type (WT) mice, and in mixed WT:BCAP-/- BM chimeras, monocytes and neutrophils skewed toward BCAP-/- origin, showing a competitive advantage for BCAP-/- myeloid cells. BCAP was expressed in BM hematopoietic progenitors, including lineage-Sca-1+c-kit+ (LSK), common myeloid progenitor, and granulocyte/macrophage progenitor (GMP) cells. At the steady state, BCAP-/- GMP cells expressed more IRF8 and less C/EBPα than did WT GMP cells, which correlated with an increase in monocyte progenitors and a decrease in granulocyte progenitors among GMP cells. Strikingly, BCAP-/- progenitors proliferated and produced more myeloid cells of both neutrophil and monocyte/macrophage lineages than did WT progenitors in myeloid colony-forming unit assays, supporting a cell-intrinsic role of BCAP in inhibiting myeloid proliferation and differentiation. Consistent with these findings, during cyclophosphamide-induced myeloablation or specific monocyte depletion, BCAP-/- mice replenished circulating monocytes and neutrophils earlier than WT mice. During myeloid replenishment after cyclophosphamide-induced myeloablation, BCAP-/- mice had increased LSK proliferation and increased numbers of LSK and GMP cells compared with WT mice. Furthermore, BCAP-/- mice accumulated more monocytes and neutrophils in the spleen than did WT mice during Listeria monocytogenes infection. Together, these data identify BCAP as a novel inhibitor of myelopoiesis in the steady state and of emergency myelopoiesis during demand conditions.
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Abstract
PURPOSE OF REVIEW During severe systemic infection, steady-state hematopoiesis is switched to demand-adapted myelopoiesis, leading to increased myeloid progenitor proliferation and, depending on the context and type of pathogen, enhanced granulocytic or monocytic differentiation, respectively. We will review the recent advances in understanding direct and indirect mechanisms by which different pathogen signals are detected and subsequently translated into demand-adapted myelopoiesis. RECENT FINDINGS Enhanced myeloid progenitor proliferation and neutrophil differentiation following infection with prototypic Gram-negative bacterium Escherichia coli is mediated by granulocyte colony-stimulating factor, and reactive oxygen species released from endothelial cells and mature myeloid cells, respectively. Furthermore, hematopoietic stem and progenitor cells directly sense pathogen signals via Toll-like receptors and contribute to emergency granulopoiesis via release and subsequent autocrine and paracrine action of myelopoietic cytokines including IL-6. Moreover, emergency monocytopoiesis upon viral infection depends on T cell-derived IFNγ and release of IL-6 from bone marrow stromal cells. SUMMARY A complex picture is evolving in which various hematopoietic and nonhematopoietic cell types interact with the hematopoietic system in an intricate manner to shape an appropriate hematopoietic response to specific infectious stimuli.
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Kralova J, Fabisik M, Pokorna J, Skopcova T, Malissen B, Brdicka T. The Transmembrane Adaptor Protein SCIMP Facilitates Sustained Dectin-1 Signaling in Dendritic Cells. J Biol Chem 2016; 291:16530-40. [PMID: 27288407 DOI: 10.1074/jbc.m116.717157] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 11/06/2022] Open
Abstract
Transmembrane adaptor proteins are molecules specialized in recruiting cytoplasmic proteins to the proximity of the cell membrane as part of the signal transduction process. A member of this family, SLP65/SLP76, Csk-interacting membrane protein (SCIMP), recruits a complex of SLP65/SLP76 and Grb2 adaptor proteins, known to be involved in the activation of PLCγ1/2, Ras, and other pathways. SCIMP expression is restricted to antigen-presenting cells. In a previous cell line-based study, it was shown that, in B cells, SCIMP contributes to the reverse signaling in the immunological synapse, downstream of MHCII glycoproteins. There it mainly facilitates the activation of ERK MAP kinases. However, its importance for MHCII glycoprotein-dependent ERK signaling in primary B cells has not been analyzed. Moreover, its role in macrophages and dendritic cells has remained largely unknown. Here we present the results of our analysis of SCIMP-deficient mice. In these mice, we did not observe any defects in B cell signaling and B cell-dependent responses. On the other hand, we found that, in dendritic cells and macrophages, SCIMP expression is up-regulated after exposure to GM-CSF or the Dectin-1 agonist zymosan. Moreover, we found that SCIMP is strongly phosphorylated after Dectin-1 stimulation and that it participates in signal transduction downstream of this important pattern recognition receptor. Our analysis of SCIMP-deficient dendritic cells revealed that SCIMP specifically contributes to sustaining long-term MAP kinase signaling and cytokine production downstream of Dectin-1 because of an increased expression and sustained phosphorylation lasting at least 24 h after signal initiation.
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Affiliation(s)
| | | | - Jana Pokorna
- Molecular Immunology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic and
| | | | - Bernard Malissen
- the Centre d'Immunophénomique, PHENOMIN-CIPHE, Aix Marseille Université UM2, INSERM US012, CNRS UMS3367, 13288 Marseille, France
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Beltra JC, Decaluwe H. Cytokines and persistent viral infections. Cytokine 2016; 82:4-15. [DOI: 10.1016/j.cyto.2016.02.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 02/11/2016] [Accepted: 02/11/2016] [Indexed: 12/14/2022]
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Remifentanil-induced alterations in neutrophil numbers after surgery. JA Clin Rep 2016; 2:5. [PMID: 29492422 PMCID: PMC5815467 DOI: 10.1186/s40981-016-0031-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 02/22/2016] [Indexed: 01/11/2023] Open
Abstract
Background Neutrophils are the first line of defense against invasive microorganisms during and after surgery. There is a possibility that different opioid analgesics used during surgery have different effects on the leucocyte count. We retrospectively analyzed the numbers of leucocytes, neutrophils, and lymphocytes just after surgery in patients who received remifentanil-based anesthesia and those who received fentanyl-based anesthesia. In female patients who underwent modified mastectomy or simple mastectomy with resection of a lymph node(s) or with biopsy of a sentinel lymph node(s) between January 2010 and December 2013 (n = 83), propensity score pairwise matching was performed according to the patient’s age and procedure, and forty patients (Remifentanil group and Fentanyl group; n = 20 each) were analyzed. Findings Postoperative numbers of leucocytes and neutrophils were significantly lower in patients who received remifentanil-based anesthesia than in those who received fentanyl-based anesthesia (p = 0.03, p = 0.014; leucocytes and neutrophils, respectively). The increases in the numbers of leucocytes and neutrophils were significantly lower in the patients in the remifentanil group (p = 0.009, p = 0.0046; increase in leucocytes and neutrophils, respectively). Conclusions In conclusion, remifentanil-based anesthesia attenuates postoperative leucocyte and neutrophil counts. It is unknown whether this phenomenon indicates the possibility of immunosuppression. Further studies are required.
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Lai Y, Dong C. Therapeutic antibodies that target inflammatory cytokines in autoimmune diseases. Int Immunol 2016; 28:181-8. [PMID: 26545932 PMCID: PMC4889878 DOI: 10.1093/intimm/dxv063] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 10/18/2015] [Indexed: 12/13/2022] Open
Abstract
Inflammatory cytokines are key regulators of immune responses. Persistent and excessive production of inflammatory cytokines underscores the development of autoimmune diseases. Therefore, neutralizing inflammatory cytokines or antagonizing their receptor function is considered as a useful therapeutic strategy to treat autoimmune diseases. To achieve the success of such a strategy, understanding of the complex actions of these cytokines and cytokine networks is required. In this review we focus on four inflammatory cytokines--tumor necrosis factor α (TNFα), interleukin-6 (IL-6), IL-23 and IL-17--and dissect how the dysregulation of these cytokines regulates autoimmune diseases. On the basis of pre-clinical and clinical data, we specifically discuss the therapeutic rationale for targeting these cytokines and describe the potential adverse effects.
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Affiliation(s)
- Yuping Lai
- Shanghai Key Laboratory of Regulatory Biology, School of Life Science, East China Normal University, No.500 Minhang Dongchuan Road, Shanghai 200241, China
| | - Chen Dong
- Institute for Immunology, Tsinghua University, Medical Research Building D330, No.30 Haidian Shuangqing Road, Beijing 100084, China
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MSCs and inflammation: new insights into the potential association between ALCL and breast implants. Breast Cancer Res Treat 2016; 156:65-72. [PMID: 26956974 DOI: 10.1007/s10549-016-3745-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 03/04/2016] [Indexed: 12/26/2022]
Abstract
Possible association between anaplastic large cell lymphoma (ALCL) and breast implants has been suggested. In this context, formation of the periprosthetic capsule has been reported as a cause of inflammation, which plays a key role in tumor onset. Tumors take advantage of inflammation to influence and interfere with the host immune response by secreting multiple factors, and their onset and survival is in turn affected by the paracrine effects from mesenchymal stem cells (MSCs). In this study, we tried to clarify how inflammation can modify the immunobiology and the exerted paracrine effect of MSCs. MSCs derived from both inflamed (I-MSCs) and control (C-MSCs) tissues were isolated and co-cultured with an ALCL cell line. Proliferation rate and the expression of selected cytokines were tested. I-MSCs secrete higher levels of cytokine related to chronic inflammation than C-MSCs. After co-cultures with KI-JK cells, C- and I-MSCs show the same variation in the cytokine expression, with an increase of IL2, IL4, IL5, IL10, IL13, TNF-α, TGF-β, and G-CSF. Proliferation of ALCL cells was not influenced by co-cultures. Our results state that (i) inflamed microenvironment affects the immunobiology of MSCs modifying the profile of the expressed cytokines, and (ii) the paracrine effects exerted by MSCs on ALCL cells are not influenced by inflammation. Moreover, it seems that ALCL cells are able to manipulate MSCs' immunoregulatory properties to evade the host immune control. Nevertheless, this ability is not associated with inflammation and the question about BIA-ALCL is not proved by our experiments.
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Decreased production of proinflammatory cytokines by monocytes from individuals presenting Candida-associated denture stomatitis. Cytokine 2016; 77:145-51. [DOI: 10.1016/j.cyto.2015.10.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 10/29/2015] [Accepted: 10/30/2015] [Indexed: 12/19/2022]
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Scholz F, Naik S, Sutterwala FS, Kaplan DH. Langerhans Cells Suppress CD49a+ NK Cell-Mediated Skin Inflammation. THE JOURNAL OF IMMUNOLOGY 2015. [PMID: 26209621 DOI: 10.4049/jimmunol.1500935] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Recruitment of innate immune effector cells into sites of infection is a critical component of resistance to pathogen infection. Using a model of intradermal footpad injection of Candida albicans, we observed that inflammation as measured by footpad thickness and neutrophil recruitment occurred independent of adoptive immunity but was significantly reduced in MyD88(-/-) and IL-6(-/-) mice. Unexpectedly, huLangerin-DTA mice (ΔLC) that lack Langerhans cells (LC) developed increased skin inflammation and expressed higher amounts of IL-6, suggesting a suppressive role for LC. Increased inflammation also occurred in Rag1(-/-) ΔLC mice but was reversed by Ab-mediated ablation of NK cells. CXCR6(+)CD49a(+) NK cells are a liver-resident subset that can mediate inflammatory skin responses. We found that exaggerated skin inflammation was absent in ΔLC × CXCR6(-/-) mice. Moreover, the exaggerated response in ΔLC mice could be adoptively transferred with liver CD49a(+) NK cells. Finally, CD49a(+) NK cells in ΔLC but not control mice were recruited to the skin, and inhibition of their recruitment prevented the exaggerated response. Thus, in the absence of LC, CD49a(+) liver NK cells display an inappropriately proinflammatory phenotype that results in increased local skin inflammation. These data reveal a novel function for LC in the regulation of this recently described subset of skin tropic NK cells.
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Affiliation(s)
- Felix Scholz
- Department of Dermatology, Center for Immunology, University of Minnesota, Minneapolis, MN 55455
| | - Shruti Naik
- Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY 10065
| | - Fayyaz S Sutterwala
- Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242; and Veterans Affairs Medical Center, Iowa City, IA 52241
| | - Daniel H Kaplan
- Department of Dermatology, Center for Immunology, University of Minnesota, Minneapolis, MN 55455;
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CR3 and Dectin-1 Collaborate in Macrophage Cytokine Response through Association on Lipid Rafts and Activation of Syk-JNK-AP-1 Pathway. PLoS Pathog 2015; 11:e1004985. [PMID: 26132276 PMCID: PMC4488469 DOI: 10.1371/journal.ppat.1004985] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Accepted: 05/27/2015] [Indexed: 01/08/2023] Open
Abstract
Collaboration between heterogeneous pattern recognition receptors (PRRs) leading to synergistic coordination of immune response is important for the host to fight against invading pathogens. Although complement receptor 3 (CR3) and Dectin-1 are major PRRs to detect fungi, crosstalk between these two receptors in antifungal immunity is largely undefined. Here we took advantage of Histoplasma capsulatum which is known to interact with both CR3 and Dectin-1 and specific particulate ligands to study the collaboration of CR3 and Dectin-1 in macrophage cytokine response. By employing Micro-Western Array (MWA), genetic approach, and pharmacological inhibitors, we demonstrated that CR3 and Dectin-1 act collaboratively to trigger macrophage TNF and IL-6 response through signaling integration at Syk kinase, allowing subsequent enhanced activation of Syk-JNK-AP-1 pathway. Upon engagement, CR3 and Dectin-1 colocalize and form clusters on lipid raft microdomains which serve as a platform facilitating their cooperation in signaling activation and cytokine production. Furthermore, in vivo studies showed that CR3 and Dectin-1 cooperatively participate in host defense against disseminated histoplasmosis and instruct adaptive immune response. Taken together, our findings define the mechanism of receptor crosstalk between CR3 and Dectin-1 and demonstrate the importance of their collaboration in host defense against fungal infection. The incidence of life-threatening fungal infections is increasing during the last decades. A better understanding of the interactions between fungal pathogen and its host cell is important to the development of new therapeutic strategies against fungal infections. Dimorphic fungus Histoplasma capsulatum becomes disseminated and threatens life in immunocompromised individuals. This fungal pathogen utilizes complement receptor 3 (CR3) and Dectin-1, two pattern recognition receptors on the surface of innate immune cells, to induce macrophage cytokine response. In this study, we demonstrated that CR3 and Dectin-1 act collaboratively to induce macrophage TNF and IL-6 response through a mechanism dependent on activation of the Syk-JNK-AP-1 signaling axis. CR3 and Dectin-1 are recruited and form clusters on lipid raft microdomains upon stimulation by H. capsulatum, leading to activation of their signaling convergence at Syk kinase and induction of subsequent cytokine response. In addition, we showed that CR3 and Dectin-1 cooperatively instruct the adaptive antifungal immunity to defense against H. capsulatum infection. Our findings define the molecular mechanisms underlying receptor crosstalk between CR3 and Dectin-1 and provide a valuable model for receptor collaboration in the context of host-fungus interactions.
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