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Vellecco V, Esposito E, Indolfi C, Saviano A, Panza E, Bucci M, Brancaleone V, Cirino G, d'Emmanuele di Villa Bianca R, Sorrentino R, Mitidieri E. Biphasic inflammatory response induced by intra-plantar injection of L-cysteine: Role of CBS-derived H 2S and S1P/NO signaling. Biomed Pharmacother 2023; 167:115536. [PMID: 37742608 DOI: 10.1016/j.biopha.2023.115536] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/14/2023] [Accepted: 09/17/2023] [Indexed: 09/26/2023] Open
Abstract
This study investigates the inflammatory response to intra-plantar injection of L-cysteine in a murine model. L-cysteine induces a two-phase response: an early phase lasting 6 h and a late phase peaking at 24 h and declining by 192 h. The early phase shows increased neutrophil accumulation at 2 h up to 24 h, followed by a reduction at 48 h. On the other hand, the late phase exhibits increased macrophage infiltration peaking at 96 h. Inhibition of cystathionine β-synthase (CBS), the first enzyme in the transsulfuration pathway, significantly reduces L-cysteine-induced edema, suggesting its dependence on CBS-derived hydrogen sulfide (H2S). Sequential formation of sphingosine-1-phosphate (S1P) preceding nitric oxide (NO) generation suggests the involvement of a CBS/S1P/NO axis in the inflammatory response. Inhibition of de novo sphingolipid biosynthesis, S1P1 receptor, and endothelial NO synthase (eNOS) attenuates L-cysteine-induced paw edema. These findings indicate a critical role of the CBS/H2S/S1P/NO signaling pathway in the development and maintenance of L-cysteine-induced inflammation. The co-presence of H2S and NO is necessary for inducing and sustaining the inflammatory response, as NaHS or L-arginine alone do not replicate the marked and prolonged inflammatory effect observed with L-cysteine. This study enhances our understanding of the complex molecular mechanisms of the interplay between NO and H2S pathways in inflammation and identifies potential therapeutic targets for inflammatory disorders.
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Affiliation(s)
- Valentina Vellecco
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Erika Esposito
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Chiara Indolfi
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Anella Saviano
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Elisabetta Panza
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Mariarosaria Bucci
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | | | - Giuseppe Cirino
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | | | - Raffaella Sorrentino
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Emma Mitidieri
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
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2
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Mawhinney M, Kulle A, Thanabalasuriar A. From infection to repair: Understanding the workings of our innate immune cells. WIREs Mech Dis 2022; 14:e1567. [PMID: 35674186 DOI: 10.1002/wsbm.1567] [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: 01/12/2022] [Revised: 04/13/2022] [Accepted: 05/04/2022] [Indexed: 11/06/2022]
Abstract
In a world filled with microbes, some posing a threat to our body, our immune system is key to living a healthy life. The innate immune system is made of various cell types that act to guard our bodies. Unlike the adaptive immune system that has a specific response, our innate immune system encompasses cells that elicit unspecific immune responses, triggered whenever the right signals are detected. Our understanding of immunity started with the concept of our immune system only responding to "nonself" like the pathogens that invade our body. However, over the past few decades, we have learned that the immune system is more than an on/off switch that recognizes nonself. The innate immune system regularly patrols our bodies for pathogens and tissue damage. Our innate immune system not only seeks to resolve infection but also repair tissue injury, through phagocytosing debris and initiating the release of growth factors. Recently, we are starting to see that it is not just recognizing danger, our innate immune system plays a crucial role in repair. Innate immune cells phenotypically change during repair. In the context of severe injury or trauma, our innate immune system is modified quite drastically to help repair, resulting in reduced infection control. Moreover, these changes in immune cell function can be modified by sex as a biological variable. From past to present, in this overview, we provide a summary of the innate immune cells and pathways in infection and tissue repair. This article is categorized under: Immune System Diseases > Molecular and Cellular Physiology.
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Affiliation(s)
- Martin Mawhinney
- Department of Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Amelia Kulle
- Department of Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Ajitha Thanabalasuriar
- Department of Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada.,Department of Microbiology and Immunology, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
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3
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Anders CB, Lawton TM, Smith HL, Garret J, Doucette MM, Ammons MCB. Use of integrated metabolomics, transcriptomics, and signal protein profile to characterize the effector function and associated metabotype of polarized macrophage phenotypes. J Leukoc Biol 2022; 111:667-693. [PMID: 34374126 PMCID: PMC8825884 DOI: 10.1002/jlb.6a1120-744r] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 06/24/2021] [Accepted: 07/13/2021] [Indexed: 12/19/2022] Open
Abstract
MΦs display remarkable plasticity and the ability to activate diverse responses to a host of intracellular and external stimuli. Despite extensive characterization of M1 MΦs and a broad set of M2 MΦs, comprehensive characterization of functional phenotype and associated metabotype driving this diverse MΦ activation remains. Herein, an ex vivo model was utilized to produce 6 MΦ functional phenotypes. Isolated CD14+ PBMCs were differentiated into resting M0 MΦs, and then polarized into M1 (IFN-γ/LPS), M2a (IL-4/IL-13), M2b (IC/LPS), M2c (IL-10), and M2d (IL-6/LIF) MΦs. The MΦs were profiled using a bioanalyte matrix of 4 cell surface markers, ∼50 secreted proteins, ∼800 expressed myeloid genes, and ∼450 identified metabolites relative to M0 MΦs. Signal protein and expressed gene profiles grouped the MΦs into inflammatory (M1 and M2b) and wound resolution (M2a, M2c, and M2d) phenotypes; however, each had a unique metabolic profile. While both M1 and M2b MΦs shared metabotype profiles consistent with an inflammatory signature; key differences were observed in the TCA cycle, FAO, and OXPHOS. Additionally, M2a, M2c, and M2d MΦs all profiled as tissue repair MΦs; however, metabotype differences were observed in multiple pathways including hexosamine, polyamine, and fatty acid metabolism. These metabolic and other key functional distinctions suggest phagocytic and proliferative functions for M2a MΦs, and angiogenesis and ECM assembly capabilities for M2b, M2c, and M2d MΦs. By integrating metabolomics into a systems analysis of MΦ phenotypes, we provide the most comprehensive map of MΦ diversity to date, along with the global metabolic shifts that correlate to MΦ functional plasticity in these phenotypes.
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Affiliation(s)
- Catherine B. Anders
- Idaho Veteran’s Research and Education Foundation (IVREF); Boise VA Medical Center (BVAMC), Boise, ID 83702; USA
| | - Tyler M.W. Lawton
- Idaho Veteran’s Research and Education Foundation (IVREF); Boise VA Medical Center (BVAMC), Boise, ID 83702; USA
| | - Hannah L. Smith
- Idaho Veteran’s Research and Education Foundation (IVREF); Boise VA Medical Center (BVAMC), Boise, ID 83702; USA, Department of Microbiology and Immunology; Montana State University, Bozeman, MT, ZIP 59717; USA
| | - Jamie Garret
- Idaho Veteran’s Research and Education Foundation (IVREF); Boise VA Medical Center (BVAMC), Boise, ID 83702; USA,School of Medicine, University of Washington, Seattle, WA, ZIP 98195; USA
| | - Margaret M. Doucette
- Department of Physical Medicine & Rehabilitation, Boise VA Medical Center (BVAMC), Boise, ID 83702; USA
| | - Mary Cloud B. Ammons
- Idaho Veteran’s Research and Education Foundation (IVREF); Boise VA Medical Center (BVAMC), Boise, ID 83702; USA
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Egbuniwe IU, Harris RJ, Nakamura M, Nestle FO, Akbar AN, Karagiannis SN, Lacy KE. B Lymphocytes Accumulate and Proliferate in Human Skin at Sites of Cutaneous Antigen Challenge. J Invest Dermatol 2021; 142:726-731.e4. [PMID: 34450137 PMCID: PMC8880055 DOI: 10.1016/j.jid.2021.06.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/21/2021] [Accepted: 06/30/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Isioma U Egbuniwe
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom; Translational Medical Sciences Unit, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, United Kingdom
| | - Robert J Harris
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Mano Nakamura
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Frank O Nestle
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom; Sanofi Immunology and Inflammation Research Therapeutic Area, Cambridge, Massachusetts, USA
| | - Arne N Akbar
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Sophia N Karagiannis
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom; Breast Cancer Now Research Unit, School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Cancer Centre, London, United Kingdom
| | - Katie E Lacy
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom.
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Chen KL, Patel J, Zeidi M, Wysocka M, Bashir MM, Patel B, Maddukuri S, White B, Werth VP. Myeloid Dendritic Cells Are Major Producers of IFN-β in Dermatomyositis and May Contribute to Hydroxychloroquine Refractoriness. J Invest Dermatol 2021; 141:1906-1914.e2. [PMID: 33675790 PMCID: PMC8316264 DOI: 10.1016/j.jid.2020.12.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 11/08/2020] [Accepted: 12/04/2020] [Indexed: 12/27/2022]
Abstract
Dermatomyositis pathogenesis remains incompletely understood; however, recent work suggests a predominant IFN-1 response. We explored dermatomyositis pathogenesis by quantifying the inflammatory cells in the skin, comparing myeloid with plasmacytoid dendritic cell release of IFN-β, and assessing myeloid dendritic cell (mDC) contribution to hydroxychloroquine refractoriness. Immunohistochemistry was performed to assess cell-type expression in lesional skin biopsies from 12 patients with moderate-to-severe cutaneous dermatomyositis. Immunofluorescence, laser-capture microdissection, and flow cytometry were used to assess mDC release of IFN-β in lesional skin biopsies and blood of patients with dermatomyositis. Immunohistochemistry was utilized to determine whether myeloid or plasmacytoid dendritic cells were increased in hydroxychloroquine nonresponders. CD4+, CD11c+, and CD69+ cells were more populous in lesional skin of patients with dermatomyositis. mDCs colocalized with IFN-β by immunofluorescence and laser-capture microdissection revealed increased IFN-β mRNA expression by mDCs in lesional skin of patients with dermatomyositis. In blood, both mDCs and plasmacytoid dendritic cells were major producers of IFN-β in patients with dermatomyositis, whereas plasmacytoid dendritic cells predominately released IFN-β in healthy controls (P < 0.01). mDCs were significantly increased in the skin of hydroxychloroquine nonresponders compared with that in the skin of responders (P < 0.05). mDCs cells appear to play an important role in dermatomyositis pathogenesis and IFN-β production.
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Affiliation(s)
- Kristen L Chen
- Department of Dermatology, Corporal Michael J. Crescenz VAMC, Philadelphia, Pennsylvania, USA; Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jay Patel
- Department of Dermatology, Corporal Michael J. Crescenz VAMC, Philadelphia, Pennsylvania, USA; Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Majid Zeidi
- Department of Dermatology, Corporal Michael J. Crescenz VAMC, Philadelphia, Pennsylvania, USA; Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Maria Wysocka
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Muhammad M Bashir
- Department of Dermatology, Corporal Michael J. Crescenz VAMC, Philadelphia, Pennsylvania, USA; Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Basil Patel
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Spandana Maddukuri
- Department of Dermatology, Corporal Michael J. Crescenz VAMC, Philadelphia, Pennsylvania, USA; Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Barbara White
- Corbus Pharmaceuticals Holdings, Inc, Norwood, Massachusetts, USA
| | - Victoria P Werth
- Department of Dermatology, Corporal Michael J. Crescenz VAMC, Philadelphia, Pennsylvania, USA; Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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6
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Patel AA, Ginhoux F, Yona S. Monocytes, macrophages, dendritic cells and neutrophils: an update on lifespan kinetics in health and disease. Immunology 2021; 163:250-261. [PMID: 33555612 DOI: 10.1111/imm.13320] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/13/2021] [Accepted: 01/17/2021] [Indexed: 12/16/2022] Open
Abstract
Phagocytes form a family of immune cells that play a crucial role in tissue maintenance and help orchestrate the immune response. This family of cells can be separated by their nuclear morphology into mononuclear and polymorphonuclear phagocytes. The generation of these cells in the bone marrow, to the blood and finally into tissues is a tightly regulated process. Ensuring the adequate production of these cells and their timely removal is key for both the initiation and resolution of inflammation. Insight into the kinetic profiles of innate myeloid cells during steady state and pathology will permit the rational development of therapies to boost the production of these cells in times of need or reduce them when detrimental.
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Affiliation(s)
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore.,Shanghai Institute of Immunology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Translational Immunology Institute, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore
| | - Simon Yona
- Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
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7
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Margaroli C, Bradley B, Thompson C, Brown MR, Giacalone VD, Bhatt L, Stoff B, Ahuja S, Springman E, Tirouvanziam R, Feldman RJ. Distinct compartmentalization of immune cells and mediators characterizes bullous pemphigoid disease. Exp Dermatol 2020; 29:1191-1198. [PMID: 33047366 DOI: 10.1111/exd.14209] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 09/23/2020] [Accepted: 09/30/2020] [Indexed: 12/22/2022]
Abstract
Bullous pemphigoid (BP) is an autoimmune blistering disease characterized by recruitment of leucocytes into skin and release of damaging enzymes, resulting in epidermal detachment and blister formation. To better understand the role of leukotriene B4 (LTB4) and other inflammatory factors in BP pathophysiology, we conducted microscopic and immunohistochemical analyses of preserved skin biopsy sections and conducted flow cytometry and ELISA analyses of matched blood and blister fluid from BP patients. Neutrophils predominated in BP blister fluid, which also contained monocytes/macrophages and T cells, but few to no eosinophils and B cells. In contrast, BP skin histology showed a different pattern, with abundant neutrophils but eosinophils being the predominant immune cell type. LTB4 pathway and neutrophil activation markers were prevalent in BP skin lesions and strongly associated with perivascular neutrophils. Blister fluid neutrophils, monocytes/macrophages and eosinophils all exhibited increased surface expression of leukotriene A4 hydrolase and neutrophil elastase (P = .002 for both). Blister fluid was also enriched in interleukins (IL)-1α, IL-1β, IL-8, IL-10, IL-18, monocyte colony-stimulating factor (M-CSF) and vascular endothelial growth factor (VEGF). Our findings suggest differential leucocyte recruitment from blood into dermis and from dermis into blister, which correlates with disease activity, and presents potential new treatment opportunities for BP.
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Affiliation(s)
- Camilla Margaroli
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Bridget Bradley
- Department of Dermatology, Emory University School of Medicine, Atlanta, GA, USA
| | - Cecilia Thompson
- Department of Dermatology, Emory University School of Medicine, Atlanta, GA, USA
| | - Milton R Brown
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Vincent D Giacalone
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | | | - Benjamin Stoff
- Department of Dermatology, Emory University School of Medicine, Atlanta, GA, USA
| | | | | | | | - Ron J Feldman
- Department of Dermatology, Emory University School of Medicine, Atlanta, GA, USA
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8
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De Maeyer RPH, van de Merwe RC, Louie R, Bracken OV, Devine OP, Goldstein DR, Uddin M, Akbar AN, Gilroy DW. Blocking elevated p38 MAPK restores efferocytosis and inflammatory resolution in the elderly. Nat Immunol 2020; 21:615-625. [PMID: 32251403 PMCID: PMC7983074 DOI: 10.1038/s41590-020-0646-0] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 03/02/2020] [Indexed: 01/26/2023]
Abstract
Increasing age alters innate immune-mediated responses; however, the mechanisms underpinning these changes in humans are not fully understood. Using a human dermal model of acute inflammation, we found that, although inflammatory onset is similar between young and elderly individuals, the resolution phase was substantially impaired in elderly individuals. This arose from a reduction in T cell immunoglobulin mucin receptor-4 (TIM-4), a phosphatidylserine receptor expressed on macrophages that enables the engulfment of apoptotic bodies, so-called efferocytosis. Reduced TIM-4 in elderly individuals was caused by an elevation in macrophage p38 mitogen-activated protein kinase (MAPK) activity. Administering an orally active p38 inhibitor to elderly individuals rescued TIM-4 expression, cleared apoptotic bodies and restored a macrophage resolution phenotype. Thus, inhibiting p38 in elderly individuals rejuvenated their resolution response to be more similar to that of younger people. This is the first resolution defect identified in humans that has been successfully reversed, thereby highlighting the tractability of targeting pro-resolution biology to treat diseases driven by chronic inflammation.
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Affiliation(s)
| | | | - Rikah Louie
- Division of Medicine, University College London, London, UK
| | | | - Oliver P Devine
- Division of Infection and Immunity, University College London, London, UK
| | - Daniel R Goldstein
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Mohib Uddin
- Respiratory Global Medicines Development, AstraZeneca, Gothenburg, Sweden
| | - Arne N Akbar
- Division of Infection and Immunity, University College London, London, UK
| | - Derek W Gilroy
- Division of Medicine, University College London, London, UK.
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9
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Coillard A, Segura E. In vivo Differentiation of Human Monocytes. Front Immunol 2019; 10:1907. [PMID: 31456804 PMCID: PMC6700358 DOI: 10.3389/fimmu.2019.01907] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 07/29/2019] [Indexed: 01/10/2023] Open
Abstract
Circulating monocytes can infiltrate mucosal or inflamed tissues where they differentiate into either macrophages or dendritic cells. This paradigm is supported by numerous studies conducted in mice and in different in vitro settings for human cells. Determining whether it holds true in vivo in humans is essential for the successful design of monocyte-targeting therapies. Despite limitations inherent to working with human samples, there is accumulating evidence of the existence of in vivo-generated monocyte-derived cells in humans. Here, we review recent studies showing the recruitment of human monocytes into tissues and their differentiation into macrophages or dendritic cells, in normal or pathological settings. We examine the methods available in human studies to demonstrate the monocytic origin of infiltrating cells. Finally, we review the functions of human monocyte-derived cells and how they might contribute to pathogeny.
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Affiliation(s)
- Alice Coillard
- Institut Curie, PSL Research University, INSERM U932, Paris, France.,Université Paris Descartes, Paris, France
| | - Elodie Segura
- Institut Curie, PSL Research University, INSERM U932, Paris, France
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10
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Brazil JC, Quiros M, Nusrat A, Parkos CA. Innate immune cell-epithelial crosstalk during wound repair. J Clin Invest 2019; 129:2983-2993. [PMID: 31329162 PMCID: PMC6668695 DOI: 10.1172/jci124618] [Citation(s) in RCA: 150] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Skin and intestinal epithelial barriers play a pivotal role in protecting underlying tissues from harsh external environments. The protective role of these epithelia is, in part, dependent on a remarkable capacity to restore barrier function and tissue homeostasis after injury. In response to damage, epithelial wounds repair by a series of events that integrate epithelial responses with those of resident and infiltrating immune cells including neutrophils and monocytes/macrophages. Compromise of this complex interplay predisposes to development of chronic nonhealing wounds, contributing to morbidity and mortality of many diseases. Improved understanding of crosstalk between epithelial and immune cells during wound repair is necessary for development of better pro-resolving strategies to treat debilitating complications of disorders ranging from inflammatory bowel disease to diabetes. In this Review we focus on epithelial and innate immune cell interactions that mediate wound healing and restoration of tissue homeostasis in the skin and intestine.
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11
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Tang-Huau TL, Segura E. Human in vivo-differentiated monocyte-derived dendritic cells. Semin Cell Dev Biol 2019; 86:44-49. [DOI: 10.1016/j.semcdb.2018.02.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 11/07/2017] [Accepted: 02/10/2018] [Indexed: 01/09/2023]
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12
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Gamma Interferon and Interleukin-17A Differentially Influence the Response of Human Macrophages and Neutrophils to Pseudomonas aeruginosa Infection. Infect Immun 2019; 87:IAI.00814-18. [PMID: 30455194 PMCID: PMC6346128 DOI: 10.1128/iai.00814-18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 11/07/2018] [Indexed: 12/27/2022] Open
Abstract
Macrophages are important orchestrators of inflammation during bacterial infection, acting as both effector cells and regulators of neutrophil recruitment and life span. Differently activated macrophage populations with distinct inflammatory and microbicidal potentials have been described. Macrophages are important orchestrators of inflammation during bacterial infection, acting as both effector cells and regulators of neutrophil recruitment and life span. Differently activated macrophage populations with distinct inflammatory and microbicidal potentials have been described. Our previous work unveiled a positive and a negative correlation between levels of gamma interferon (IFN-γ) and interleukin-17A (IL-17A), respectively, and lung function in cystic fibrosis, particularly in patients chronically infected with Pseudomonas aeruginosa. This study sought to define key parameters in human antibacterial immunity under Th1- and Th17-dominated inflammatory conditions; the final aim was to identify unique characteristics that could be fine-tuned therapeutically to minimize tissue damage while maximizing bacterial clearance. Toward this aim, neutrophils were incorporated into cultures of macrophages treated with IFN-γ or IL-17A and infected with P. aeruginosa. The intent of this design was to model (i) initiation of inflammation by infected macrophages and (ii) delayed arrival of neutrophils and their exposure to macrophage-derived cytokines. Under these conditions, IFN-γ decreased bacterial killing and promoted the production of monocyte chemoattractant protein 1 (MCP-1). In contrast, IL-17A promoted bacterial killing but did not affect MCP-1 production. The level of secretion of the pyrogen IL-1β was significantly lower in the presence of IFN-γ than in the presence of IL-17A and correlated with levels of the IL1B transcript in infected macrophages. These findings support the validity of this model to investigate human antibacterial immunity. Based on these observations, the protective and damaging roles of IFN-γ and IL-17A, respectively, during P. aeruginosa infection could be caused by their contrasting effects on IL-1β and MCP-1 production.
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13
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Collin M, Bigley V. Human dendritic cell subsets: an update. Immunology 2018; 154:3-20. [PMID: 29313948 PMCID: PMC5904714 DOI: 10.1111/imm.12888] [Citation(s) in RCA: 792] [Impact Index Per Article: 132.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/30/2017] [Accepted: 12/04/2017] [Indexed: 02/06/2023] Open
Abstract
Dendritic cells (DC) are a class of bone-marrow-derived cells arising from lympho-myeloid haematopoiesis that form an essential interface between the innate sensing of pathogens and the activation of adaptive immunity. This task requires a wide range of mechanisms and responses, which are divided between three major DC subsets: plasmacytoid DC (pDC), myeloid/conventional DC1 (cDC1) and myeloid/conventional DC2 (cDC2). Each DC subset develops under the control of a specific repertoire of transcription factors involving differential levels of IRF8 and IRF4 in collaboration with PU.1, ID2, E2-2, ZEB2, KLF4, IKZF1 and BATF3. DC haematopoiesis is conserved between mammalian species and is distinct from monocyte development. Although monocytes can differentiate into DC, especially during inflammation, most quiescent tissues contain significant resident populations of DC lineage cells. An extended range of surface markers facilitates the identification of specific DC subsets although it remains difficult to dissociate cDC2 from monocyte-derived DC in some settings. Recent studies based on an increasing level of resolution of phenotype and gene expression have identified pre-DC in human blood and heterogeneity among cDC2. These advances facilitate the integration of mouse and human immunology, support efforts to unravel human DC function in vivo and continue to present new translational opportunities to medicine.
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Affiliation(s)
- Matthew Collin
- Human Dendritic Cell LabInstitute of Cellular Medicine and NIHR Newcastle Biomedical Research Centre Newcastle upon Tyne Hospitals NHS Foundation Trust and Newcastle UniversityNewcastle upon TyneUK
| | - Venetia Bigley
- Human Dendritic Cell LabInstitute of Cellular Medicine and NIHR Newcastle Biomedical Research Centre Newcastle upon Tyne Hospitals NHS Foundation Trust and Newcastle UniversityNewcastle upon TyneUK
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14
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Eslani M, Putra I, Shen X, Hamouie J, Tadepalli A, Anwar KN, Kink JA, Ghassemi S, Agnihotri G, Reshetylo S, Mashaghi A, Dana R, Hematti P, Djalilian AR. Cornea-Derived Mesenchymal Stromal Cells Therapeutically Modulate Macrophage Immunophenotype and Angiogenic Function. Stem Cells 2018; 36:775-784. [PMID: 29341332 DOI: 10.1002/stem.2781] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 01/02/2018] [Accepted: 01/08/2018] [Indexed: 12/12/2022]
Abstract
Macrophages are crucial drivers of inflammatory corneal neovascularization and thus are potential targets for immunomodulatory therapies. We hypothesized that therapeutic use of cornea-derived mesenchymal stromal cells (cMSCs) may alter the function of macrophages. We found that cMSCs can modulate the phenotype and angiogenic function of macrophages. In vitro, cMSCs induce apoptosis of macrophages while preferentially promoting a distinct CD14hi CD16hi CD163hi CD206hi immunophenotype that has significantly reduced angiogenic effects based on in vitro angiogenesis assays. In vivo, application of cMSCs to murine corneas after injury leads to reduced macrophage infiltration and higher expression of CD206 in macrophages. Macrophages cocultured ("educated") by cMSCs express significantly higher levels of anti-angiogenic and anti-inflammatory factors compared with control macrophages. In vivo, injured corneas treated with cMSC-educated macrophages demonstrate significantly less neovascularization compared with corneas treated with control macrophages. Knocking down the expression of pigment epithelial derived factor (PEDF) in cMSCs significantly abrogates its modulating effects on macrophages, as shown by the reduced rate of apoptosis, decreased expression of sFLT-1/PEDF, and increased expression of vascular endothelial growth factor-A in the cocultured macrophages. Similarly, cMSCs isolated from PEDF knockout mice are less effective compared with wild-type cMSCs at inhibiting macrophage infiltration when applied to wild-type corneas after injury. Overall, these results demonstrate that cMSCs therapeutically suppress the angiogenic capacity of macrophages and highlight the role of cMSC secreted PEDF in the modulation of macrophage phenotype and function. Stem Cells 2018;36:775-784.
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Affiliation(s)
- Medi Eslani
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Ilham Putra
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Xiang Shen
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Judy Hamouie
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Asha Tadepalli
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Khandaker N Anwar
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - John A Kink
- Department of Medicine and University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Samaneh Ghassemi
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Gaurav Agnihotri
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Sofiya Reshetylo
- Department of Medicine and University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Alireza Mashaghi
- Faculty of Mathematics and Natural Sciences, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Reza Dana
- Schepens Eye Research Institute, Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Peiman Hematti
- Department of Medicine and University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Ali R Djalilian
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
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15
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Codagnone M, Cianci E, Lamolinara A, Mari VC, Nespoli A, Isopi E, Mattoscio D, Arita M, Bragonzi A, Iezzi M, Romano M, Recchiuti A. Resolvin D1 enhances the resolution of lung inflammation caused by long-term Pseudomonas aeruginosa infection. Mucosal Immunol 2018; 11:35-49. [PMID: 28422188 DOI: 10.1038/mi.2017.36] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 03/14/2017] [Indexed: 02/07/2023]
Abstract
Pseudomonas aeruginosa lung infection is a main cause of disability and mortality worldwide. Acute inflammation and its timely resolution are crucial for ensuring bacterial clearance and limiting tissue damage. Here, we investigated protective actions of resolvin (Rv) D1 in lung infection induced by the RP73 clinical strain of P. aeruginosa. RvD1 significantly diminished bacterial growth and neutrophil infiltration during acute pneumonia caused by RP73. Inoculum of RP73, immobilized in agar beads, resulted in persistent lung infection up to 21 days, leading to a non resolving inflammation reminiscent of human pathology. RvD1 significantly reduced bacterial titer, leukocyte infiltration, and lung tissue damage. In murine lung macrophages sorted during P. aeruginosa chronic infection, RvD1 regulated the expression of Toll-like receptors, downstream genes, and microRNA (miR)-21 and 155, resulting in reduced inflammatory signaling. In vitro, RvD1 enhanced phagocytosis of P. aeruginosa by neutrophils and macrophages, recapitulating its in vivo actions. These results unveil protective functions and mechanisms of action of RvD1 in acute and chronic P. aeruginosa pneumonia, providing evidence for its potent pro-resolution and tissue protective properties on airway mucosal tissue during infection.
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Affiliation(s)
- M Codagnone
- Department of Medical, Oral, and Biotechnology Science, University of Chieti-Pescara, Chieti, Italy.,Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy
| | - E Cianci
- Department of Medical, Oral, and Biotechnology Science, University of Chieti-Pescara, Chieti, Italy.,Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy
| | - A Lamolinara
- Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy.,Department of Medicine and Aging Science, University of Chieti-Pescara, Chieti, Italy
| | - V C Mari
- Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy
| | - A Nespoli
- Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy.,Department of Medicine and Aging Science, University of Chieti-Pescara, Chieti, Italy
| | - E Isopi
- Department of Medical, Oral, and Biotechnology Science, University of Chieti-Pescara, Chieti, Italy.,Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy
| | - D Mattoscio
- Department of Medical, Oral, and Biotechnology Science, University of Chieti-Pescara, Chieti, Italy.,Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy
| | - M Arita
- RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - A Bragonzi
- Infection and Cystic Fibrosis Unit, Division of Immunology, transplantation, and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - M Iezzi
- Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy.,Department of Medicine and Aging Science, University of Chieti-Pescara, Chieti, Italy
| | - M Romano
- Department of Medical, Oral, and Biotechnology Science, University of Chieti-Pescara, Chieti, Italy.,Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy
| | - A Recchiuti
- Department of Medical, Oral, and Biotechnology Science, University of Chieti-Pescara, Chieti, Italy.,Center on Aging Science and Translational Medicine (CeSI-MeT) "G. d'Annunzio", University of Chieti-Pescara, Chieti, Italy
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16
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Goudot C, Coillard A, Villani AC, Gueguen P, Cros A, Sarkizova S, Tang-Huau TL, Bohec M, Baulande S, Hacohen N, Amigorena S, Segura E. Aryl Hydrocarbon Receptor Controls Monocyte Differentiation into Dendritic Cells versus Macrophages. Immunity 2017; 47:582-596.e6. [PMID: 28930664 DOI: 10.1016/j.immuni.2017.08.016] [Citation(s) in RCA: 246] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 05/23/2017] [Accepted: 08/28/2017] [Indexed: 12/25/2022]
Abstract
After entering tissues, monocytes differentiate into cells that share functional features with either macrophages or dendritic cells (DCs). How monocyte fate is directed toward monocyte-derived macrophages (mo-Macs) or monocyte-derived DCs (mo-DCs) and which transcription factors control these differentiation pathways remains unknown. Using an in vitro culture model yielding human mo-DCs and mo-Macs closely resembling those found in vivo in ascites, we show that IRF4 and MAFB were critical regulators of monocyte differentiation into mo-DCs and mo-Macs, respectively. Activation of the aryl hydrocarbon receptor (AHR) promoted mo-DC differentiation through the induction of BLIMP-1, while impairing differentiation into mo-Macs. AhR deficiency also impaired the in vivo differentiation of mouse mo-DCs. Finally, AHR activation correlated with mo-DC infiltration in leprosy lesions. These results establish that mo-DCs and mo-Macs are controlled by distinct transcription factors and show that AHR acts as a molecular switch for monocyte fate specification in response to micro-environmental factors.
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Affiliation(s)
- Christel Goudot
- Institut Curie, PSL Research University, INSERM, U932, 26 rue d'Ulm, 75005 Paris, France
| | - Alice Coillard
- Institut Curie, PSL Research University, INSERM, U932, 26 rue d'Ulm, 75005 Paris, France
| | - Alexandra-Chloé Villani
- Broad Institute of Harvard University and MIT, Cambridge, MA 02142, USA; Center for Cancer Research, Massachusetts General Hospital, Department of Medicine, Charlestown, MA 02129, USA
| | - Paul Gueguen
- Institut Curie, PSL Research University, INSERM, U932, 26 rue d'Ulm, 75005 Paris, France
| | - Adeline Cros
- Institut Curie, PSL Research University, INSERM, U932, 26 rue d'Ulm, 75005 Paris, France
| | - Siranush Sarkizova
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA 02142, USA
| | - Tsing-Lee Tang-Huau
- Institut Curie, PSL Research University, INSERM, U932, 26 rue d'Ulm, 75005 Paris, France; Sanofi, Breakthrough Laboratory, 1 impasse des ateliers, 94400 Vitry-sur-Seine, France
| | - Mylène Bohec
- Institut Curie, PSL Research University, NGS platform, 26 rue d'Ulm, 75005 Paris, France
| | - Sylvain Baulande
- Institut Curie, PSL Research University, NGS platform, 26 rue d'Ulm, 75005 Paris, France
| | - Nir Hacohen
- Broad Institute of Harvard University and MIT, Cambridge, MA 02142, USA; Center for Cancer Research, Massachusetts General Hospital, Department of Medicine, Charlestown, MA 02129, USA
| | - Sebastian Amigorena
- Institut Curie, PSL Research University, INSERM, U932, 26 rue d'Ulm, 75005 Paris, France
| | - Elodie Segura
- Institut Curie, PSL Research University, INSERM, U932, 26 rue d'Ulm, 75005 Paris, France.
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17
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Rathod KS, Kapil V, Velmurugan S, Khambata RS, Siddique U, Khan S, Van Eijl S, Gee LC, Bansal J, Pitrola K, Shaw C, D’Acquisto F, Colas RA, Marelli-Berg F, Dalli J, Ahluwalia A. Accelerated resolution of inflammation underlies sex differences in inflammatory responses in humans. J Clin Invest 2017; 127:169-182. [PMID: 27893465 PMCID: PMC5199722 DOI: 10.1172/jci89429] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 10/17/2016] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Cardiovascular disease occurs at lower incidence in premenopausal females compared with age-matched males. This variation may be linked to sex differences in inflammation. We prospectively investigated whether inflammation and components of the inflammatory response are altered in females compared with males. METHODS We performed 2 clinical studies in healthy volunteers. In 12 men and 12 women, we assessed systemic inflammatory markers and vascular function using brachial artery flow-mediated dilation (FMD). In a further 8 volunteers of each sex, we assessed FMD response to glyceryl trinitrate (GTN) at baseline and at 8 hours and 32 hours after typhoid vaccine. In a separate study in 16 men and 16 women, we measured inflammatory exudate mediators and cellular recruitment in cantharidin-induced skin blisters at 24 and 72 hours. RESULTS Typhoid vaccine induced mild systemic inflammation at 8 hours, reflected by increased white cell count in both sexes. Although neutrophil numbers at baseline and 8 hours were greater in females, the neutrophils were less activated. Systemic inflammation caused a decrease in FMD in males, but an increase in females, at 8 hours. In contrast, GTN response was not altered in either sex after vaccine. At 24 hours, cantharidin formed blisters of similar volume in both sexes; however, at 72 hours, blisters had only resolved in females. Monocyte and leukocyte counts were reduced, and the activation state of all major leukocytes was lower, in blisters of females. This was associated with enhanced levels of the resolving lipids, particularly D-resolvin. CONCLUSIONS Our findings suggest that female sex protects against systemic inflammation-induced endothelial dysfunction. This effect is likely due to accelerated resolution of inflammation compared with males, specifically via neutrophils, mediated by an elevation of the D-resolvin pathway. TRIAL REGISTRATION ClinicalTrials.gov NCT01582321 and NRES: City Road and Hampstead Ethics Committee: 11/LO/2038. FUNDING The authors were funded by multiple sources, including the National Institute for Health Research, the British Heart Foundation, and the European Research Council.
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18
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Maini AA, George MJ, Motwani MP, Day RM, Gilroy DW, O’Brien AJ. A Comparison of Human Neutrophils Acquired from Four Experimental Models of Inflammation. PLoS One 2016; 11:e0165502. [PMID: 27780229 PMCID: PMC5079626 DOI: 10.1371/journal.pone.0165502] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 10/12/2016] [Indexed: 12/18/2022] Open
Abstract
Defects in neutrophil function have been implicated in a wide spectrum of clinical conditions. Several models are employed to study activated human neutrophils akin to those found at a site of inflammation. These include whole blood (WB) ex vivo stimulation with lipopolysaccharide (LPS) and in vivo techniques: cantharidin blister, skin windows and intra-dermal injection of UV-killed E.coli (UVKEc). Neutrophils obtained from these have never been compared. We compared the activation status of neutrophils from each technique in order to inform the optimal model for use in human studies. Healthy male volunteers were randomised to undergo one of the four techniques (n = 5/group). LPS: WB stimulated with 1ng/ml of LPS for 4 hours. Cantharidin: 12.5μl of 0.1% cantharidin elicited a single blister, aspirated at 24 hours. Skin windows: four 6mm mechanical-suction blisters created, de-roofed and an exudate-collection chamber placed over the windows for 4 hours before aspiration. UVKEc: 1.5 x 107 UVKEc injected intra-dermally. A single 10mm mechanical-suction blister formed and aspirated at 4 hours. Unstimulated WB used as the control. Flow cytometry was used to determine activation status using CD16, CD11b, CD54, CD62L and CD88. Functional status was assessed with a phagocytosis assay. The pattern of neutrophil activation was similar in all models. Neutrophil CD11b was elevated in all models, most markedly in UVKEc (p<0.0001), and CD54 was also elevated but only significant in the LPS model (p = 0.001). CD62L was significantly reduced in all 4 models (p<0.0001) and CD88 was also suppressed in all. There were no changes in CD16 in any model, neither was there any significant difference in the phagocytic capacity of the neutrophils. In summary, there are no significant differences in activation marker expression or phagocytic capacity in the neutrophils obtained from each technique. Therefore we believe whole blood stimulation is the best model in experimentally challenging inpatient populations.
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Affiliation(s)
- Alexander A. Maini
- Centre for Clinical Pharmacology, Division of Medicine, University College London, London, United Kingdom
- * E-mail:
| | - Marc J. George
- Centre for Clinical Pharmacology, Division of Medicine, University College London, London, United Kingdom
| | - Madhur P. Motwani
- Centre for Clinical Pharmacology, Division of Medicine, University College London, London, United Kingdom
| | - Richard M. Day
- UCL Applied Biomechanical Engineering Group, Division of Medicine, University College London, London, United Kingdom
| | - Derek W. Gilroy
- Centre for Clinical Pharmacology, Division of Medicine, University College London, London, United Kingdom
| | - Alastair J. O’Brien
- Centre for Clinical Pharmacology, Division of Medicine, University College London, London, United Kingdom
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19
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Motwani MP, Flint JD, De Maeyer RP, Fullerton JN, Smith AM, Marks DJ, Gilroy DW. Novel translational model of resolving inflammation triggered by UV-killed E. coli. JOURNAL OF PATHOLOGY CLINICAL RESEARCH 2016; 2:154-65. [PMID: 27499924 PMCID: PMC4958736 DOI: 10.1002/cjp2.43] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 03/05/2016] [Indexed: 11/23/2022]
Abstract
Whilst numerous studies investigating the aetiology of inflammatory diseases have been performed in rodents, the applicability of these data to human pathophysiology is frequently debated. Regardless of the strengths and weaknesses of rodent models in biomedical research, there is a need to develop models of experimental inflammation in humans. Here, we describe a self‐resolving acute inflammatory response triggered by the intradermal injection of UV‐killed Escherichia coli into the forearm of healthy volunteers. Cells and exudates were harvested from onset to resolution by applying negative pressure over the inflamed site. Onset was characterized by high blood flow, neutrophilia and peak levels of pro‐inflammatory cytokines, whilst resolution showed a decline in blood blow, reduction in neutrophils, increase in monocytes/macrophages and waning of classic pro‐inflammatory cytokine levels. An anti‐inflammatory effect, defined as suppression of onset phase events, was demonstrated by administering naproxen, a conventional non‐steroidal anti‐inflammatory drug. In summary, this model of resolving acute inflammation is minimally invasive, highly tractable and allows simultaneous investigation of the vascular response, cellular trafficking and chemical mediator profile of onset and resolution phases of acute inflammation in humans. It can serve as a translational platform to provide mechanistic insights and to test the clinical efficacy of novel anti‐inflammatory and pro‐resolving drugs, and also as a tool in patients to explore inherent defects in resolution pathways.
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Affiliation(s)
- Madhur P Motwani
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street University College London London WC1E 6JF UK
| | - Julia D Flint
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street University College London London WC1E 6JF UK
| | - Roel Ph De Maeyer
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street University College London London WC1E 6JF UK
| | - James N Fullerton
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street University College London London WC1E 6JF UK
| | - Andrew M Smith
- Microbial Diseases, Eastman Dental Institute, University College London London WC1X 8LD UK
| | - Daniel Jb Marks
- Centre for Molecular Medicine, Division of Medicine, 5 University Street University College London London WC1E 6JF UK
| | - Derek W Gilroy
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street University College London London WC1E 6JF UK
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20
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Yeager MP, Pioli PA, Collins J, Barr F, Metzler S, Sites BD, Guyre PM. Glucocorticoids enhance the in vivo migratory response of human monocytes. Brain Behav Immun 2016; 54:86-94. [PMID: 26790757 PMCID: PMC4828285 DOI: 10.1016/j.bbi.2016.01.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 01/06/2016] [Accepted: 01/10/2016] [Indexed: 01/12/2023] Open
Abstract
Glucocorticoids (GCs) are best known for their potent anti-inflammatory effects. However, an emerging model for glucocorticoid (GC) regulation of in vivo inflammation also includes a delayed, preparatory effect that manifests as enhanced inflammation following exposure to an inflammatory stimulus. When GCs are transiently elevated in vivo following exposure to a stressful event, this model proposes that a subsequent period of increased inflammatory responsiveness is adaptive because it enhances resistance to a subsequent stressor. In the present study, we examined the migratory response of human monocytes/macrophages following transient in vivo exposure to stress-associated concentrations of cortisol. Participants were administered cortisol for 6h to elevate in vivo cortisol levels to approximate those observed during major systemic stress. Monocytes in peripheral blood and macrophages in sterile inflammatory tissue (skin blisters) were studied before and after exposure to cortisol or placebo. We found that exposure to cortisol induced transient upregulation of monocyte mRNA for CCR2, the receptor for monocyte chemotactic protein-1 (MCP-1/CCL2) as well as for the chemokine receptor CX3CR1. At the same time, mRNA for the transcription factor IκBα was decreased. Monocyte surface expression of CCR2 but not CX3CR1 increased in the first 24h after cortisol exposure. Transient exposure to cortisol also led to an increased number of macrophages and neutrophils in fluid derived from a sterile inflammatory site in vivo. These findings suggest that the delayed, pro-inflammatory effects of cortisol on the human inflammatory responses may include enhanced localization of effector cells at sites of in vivo inflammation.
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Affiliation(s)
- Mark P. Yeager
- Department of Anesthesiology, Dartmouth Hitchcock Medical Center, 1 Medical Center Drive, Lebanon, NH 03755, USA
| | - Patricia A. Pioli
- Department of Obstetrics and Gynecology, Dartmouth Hitchcock Medical Center, 1 Medical Center Drive, Lebanon, NH 03755, USA
| | - Jane Collins
- Department of Physiology and Neurobiology, Geisel School of Medicine at Dartmouth, 1 Medical Center Drive, Lebanon, NH 03755, USA
| | - Fiona Barr
- Department of Physiology and Neurobiology, Geisel School of Medicine at Dartmouth, 1 Medical Center Drive, Lebanon, NH 03755, USA
| | - Sara Metzler
- Department of Anesthesiology, Dartmouth Hitchcock Medical Center, 1 Medical Center Drive, Lebanon, NH 03755, USA
| | - Brian D. Sites
- Department of Anesthesiology, Dartmouth Hitchcock Medical Center, 1 Medical Center Drive, Lebanon, NH 03755, USA
| | - Paul M. Guyre
- Department of Physiology and Neurobiology, Geisel School of Medicine at Dartmouth, 1 Medical Center Drive, Lebanon, NH 03755, USA
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21
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Fullerton JN, Gilroy DW. Resolution of inflammation: a new therapeutic frontier. Nat Rev Drug Discov 2016; 15:551-67. [PMID: 27020098 DOI: 10.1038/nrd.2016.39] [Citation(s) in RCA: 585] [Impact Index Per Article: 73.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Dysregulated inflammation is a central pathological process in diverse disease states. Traditionally, therapeutic approaches have sought to modulate the pro- or anti-inflammatory limbs of inflammation, with mixed success. However, insight into the pathways by which inflammation is resolved has highlighted novel opportunities to pharmacologically manipulate these processes - a strategy that might represent a complementary (and perhaps even superior) therapeutic approach. This Review discusses the state of the art in the biology of resolution of inflammation, highlighting the opportunities and challenges for translational research in this field.
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Affiliation(s)
- James N Fullerton
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, UK
| | - Derek W Gilroy
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, UK
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22
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Madalli S, Beyrau M, Whiteford J, Duchene J, Singh Nandhra I, Patel NSA, Motwani MP, Gilroy DW, Thiemermann C, Nourshargh S, Scotland RS. Sex-specific regulation of chemokine Cxcl5/6 controls neutrophil recruitment and tissue injury in acute inflammatory states. Biol Sex Differ 2015; 6:27. [PMID: 26617980 PMCID: PMC4661984 DOI: 10.1186/s13293-015-0047-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 11/17/2015] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Tissue infiltration by neutrophils during acute inflammatory states causes substantial tissue injury. While the magnitude of tissue neutrophil accumulation in innate immune responses is profoundly greater in males than females, fundamental aspects of the molecular mechanisms underlying these sex differences remain largely unknown. METHODS We investigated sex differences in neutrophil stimulation and recruitment in ischemia/reperfusion (I/R; mesenteric or renal) or carrageenan pleurisy in rats or mice, as well as skin injury in human volunteers. The induction of potent chemoattractive mediators (chemokines) and neutrophil adhesion molecules were measured by real-time PCR, flow cytometry, and protein assays. RESULTS Mesenteric I/R in age-matched Wistar rats resulted in substantially more neutrophil accumulation and tissue injury at 2 h reperfusion in males than females. Using intravital microscopy, we show that the immediate (<30 min) neutrophil response to I/R is similar in males and females but that prolonged neutrophil recruitment occurs in males at sites local and distal to inflammatory insult partly due to an increase in circulating neutrophil populations with elevated surface expression of adhesion molecules. Sex differences in neutrophil kinetics were correlated with sustained induction of chemokine Cxcl5 in the tissue, circulation, and bone marrow of males but not females. Furthermore, blockade of Cxcl5 in males prior to ischemia resulted in neutrophil responses that were similar in magnitude to those in females. Conversely, administration of Cxcl5 to males in the absence of I/R was sufficient to increase levels of systemic neutrophils. Cxcl5 treatment of bone marrow neutrophils in vitro caused substantial induction of neutrophil-mobilizing cytokine granulocyte colony-stimulating factor (GCSF) and expression of β2 integrin that accounts for sexual dimorphism in circulating neutrophil populations in I/R. Moreover, male Cxcl5-stimulated bone marrow neutrophils had an increased capacity to adhere to β2 integrin ligand ICAM-1, implicating a greater sensitivity of male leukocytes to Cxcl5-mediated activation. Differential induction of Cxcl5 (human CXCL6) between the sexes was also evident in murine renal I/R, rat pleurisy, and human skin blisters and correlated with the magnitude of neutrophil accumulation in tissues. CONCLUSIONS Our study reveals that sex-specific induction of chemokine Cxcl5/CXCL6 contributes to sexual dimorphism in neutrophil recruitment in diverse acute inflammatory responses partly due to increased stimulation and trafficking of bone marrow neutrophils in males.
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Affiliation(s)
| | - Martina Beyrau
- />Centre for Microvascular Research, London, EC1M 6BQ UK
| | | | - Johan Duchene
- />Department of Cardiovascular Research, Max Delbrück Center for Molecular Medicine (MDC), Berlin-Buch, Germany
| | | | - Nimesh S. A. Patel
- />Centre for Translational Medicine and Therapeutics, William Harvey Research Institute, Barts and The London Medical School, Queen Mary University of London, London, EC1M 6BQ UK
| | - Madhur P. Motwani
- />Department of Medicine, Rayne Institute, University College London, London, WC1 6JJ UK
| | - Derek W. Gilroy
- />Department of Medicine, Rayne Institute, University College London, London, WC1 6JJ UK
| | - Christoph Thiemermann
- />Centre for Translational Medicine and Therapeutics, William Harvey Research Institute, Barts and The London Medical School, Queen Mary University of London, London, EC1M 6BQ UK
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23
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Vaz ER, Fujimura PT, Araujo GR, da Silva CAT, Silva RL, Cunha TM, Lopes-Ferreira M, Lima C, Ferreira MJ, Cunha-Junior JP, Taketomi EA, Goulart LR, Ueira-Vieira C. A Short Peptide That Mimics the Binding Domain of TGF-β1 Presents Potent Anti-Inflammatory Activity. PLoS One 2015; 10:e0136116. [PMID: 26312490 PMCID: PMC4552549 DOI: 10.1371/journal.pone.0136116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 07/29/2015] [Indexed: 12/30/2022] Open
Abstract
The transforming growth factor beta 1 (TGF-β1) is a pleiotropic cytokine with multiple roles in development, wound healing, and immune regulation. TGF-β1-mediated immune dysfunction may lead to pathological conditions, such as inflammation. Chronic inflammatory process is characterized by a continuous release of pro-inflammatory cytokines, and the inhibition or the blockage of these cytokines signaling pathways are considered a target treatment. In this context, despite the high numbers of TGF-β-targeted pathways, the inducible regulatory T cells (iTreg) to control inflammation seems to be a promising approach. Our aim was to develop novel peptides through phage display (PhD) technology that could mimic TGF-β1 function with higher potency. Specific mimetic peptides were obtained through a PhD subtraction strategy from whole cell binding using TGF-β1 recombinant as a competitor during elution step. We have selected a peptide that seems to play an important role on cellular differentiation and modulation of TNF-α and IL-10 cytokines. The synthetic pm26TGF-β1 peptide tested in PBMC significantly down-modulated TNF-α and up-regulated IL-10 responses, leading to regulatory T cells (Treg) phenotype differentiation. Furthermore, the synthetic peptide was able to decrease leukocytes rolling in BALB/C mice and neutrophils migration during inflammatory process in C57BL/6 mice. These data suggest that this peptide may be useful for the treatment of inflammatory diseases, especially because it displays potent anti-inflammatory properties and do not exhibit neutrophils’ chemoattraction.
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Affiliation(s)
- Emília R. Vaz
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
- * E-mail:
| | - Patrícia T. Fujimura
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Galber R. Araujo
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Carlos A. T. da Silva
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Rangel L. Silva
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Thiago M. Cunha
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Mônica Lopes-Ferreira
- Immunoregulation Unit, Special Laboratory of Applied Toxicology (CEPID/FAPESP), Butantan Institute, São Paulo, São Paulo State, Brazil
| | - Carla Lima
- Immunoregulation Unit, Special Laboratory of Applied Toxicology (CEPID/FAPESP), Butantan Institute, São Paulo, São Paulo State, Brazil
| | - Márcio J. Ferreira
- Immunoregulation Unit, Special Laboratory of Applied Toxicology (CEPID/FAPESP), Butantan Institute, São Paulo, São Paulo State, Brazil
| | - Jair P. Cunha-Junior
- Laboratory of Immunotechnology and Immunochemistry, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Ernesto A. Taketomi
- Laboratory of Immunotechnology and Immunochemistry, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Luiz R. Goulart
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
- Department of Medical Microbiology and Immunology, University of California Davis, Davis, CA, United States of America
| | - Carlos Ueira-Vieira
- Laboratory of Nanobiotechnology Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
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Affiliation(s)
- Madhur P Motwani
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, United Kingdom
| | - Derek W Gilroy
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, 5 University Street, University College London, London WC1E 6JJ, United Kingdom.
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