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Muniz VS, Silva JC, Braga YAV, Melo RCN, Ueki S, Takeda M, Hebisawa A, Asano K, Figueiredo RT, Neves JS. Eosinophils release extracellular DNA traps in response to Aspergillus fumigatus. J Allergy Clin Immunol 2017; 141:571-585.e7. [PMID: 28943470 DOI: 10.1016/j.jaci.2017.07.048] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 06/30/2017] [Accepted: 07/10/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Eosinophils mediate the immune response in different infectious conditions. The release of extracellular DNA traps (ETs) by leukocytes has been described as an innate immune response mechanism that is relevant in many disorders including fungal diseases. Different stimuli induce the release of human eosinophil ETs (EETs). Aspergillus fumigatus is an opportunistic fungus that may cause eosinophilic allergic bronchopulmonary aspergillosis (ABPA). It has been reported that eosinophils are important to the clearance of A fumigatus in infected mice lungs. However, the immunological mechanisms that underlie the molecular interactions between A fumigatus and eosinophils are poorly understood. OBJECTIVE Here, we investigated the presence of EETs in the bronchial mucus plugs of patients with ABPA. We also determined whether A fumigatus induced the release of human eosinophil EETs in vitro. METHODS Mucus samples of patients with ABPA were analyzed by light and confocal fluorescence microscopy. The release of EETs by human blood eosinophils was evaluated using different pharmacological tools and neutralizing antibodies by fluorescence microscopy and a fluorimetric method. RESULTS We identified abundant nuclear histone-bearing EETs in the bronchial secretions obtained from patients with ABPA. In vitro, we demonstrated that A fumigatus induces the release of EETs through a mechanism independent of reactive oxygen species but associated with eosinophil death, histone citrullination, CD11b, and the Syk tyrosine kinase pathway. EETs lack the killing or fungistatic activities against A fumigatus. CONCLUSIONS Our findings may contribute to the understanding of how eosinophils recognize and act as immune cells in response to A fumigatus, which may lead to novel insights regarding the treatment of patients with ABPA.
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Affiliation(s)
- Valdirene S Muniz
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juliana C Silva
- Institute of Biomedical Sciences/Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yasmim A V Braga
- Institute of Biomedical Sciences/Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rossana C N Melo
- Laboratory of Cellular Biology, Department of Biology, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Shigeharu Ueki
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Masahide Takeda
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Akira Hebisawa
- Clinical Research Center and Pathology Division, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Koichiro Asano
- Division of Pulmonary Medicine, Department of Medicine, Tokai University School of Medicine, Kanagawa, Japan
| | - Rodrigo T Figueiredo
- Institute of Biomedical Sciences/Unit of Xerem, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Josiane S Neves
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
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Abstract
Eosinophils are a minority circulating granulocyte classically viewed as being involved in host defense against parasites and promoting allergic reactions. However, a series of new regulatory functions for these cells have been identified in the past decade. During homeostasis, eosinophils develop in the bone marrow and migrate from the blood into target tissues following an eotaxin gradient, with interleukin-5 being a key cytokine for eosinophil proliferation, survival, and priming. In multiple target tissues, eosinophils actively regulate a variety of immune functions through their vast arsenal of granule products and cytokines, as well as direct cellular interaction with cells in proximity. The immunologic regulation of eosinophils extends from innate immunity to adaptive immunity and also involves non-immune cells. Herein, we summarize recent findings regarding novel roles of murine and human eosinophils, focusing on interactions with other hematopoietic cells. We also review new experimental tools available and remaining questions to uncover a greater understanding of this enigmatic cell.
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103
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Larose MC, Archambault AS, Provost V, Laviolette M, Flamand N. Regulation of Eosinophil and Group 2 Innate Lymphoid Cell Trafficking in Asthma. Front Med (Lausanne) 2017; 4:136. [PMID: 28848734 PMCID: PMC5554517 DOI: 10.3389/fmed.2017.00136] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 07/27/2017] [Indexed: 12/17/2022] Open
Abstract
Asthma is an inflammatory disease usually characterized by increased Type 2 cytokines and by an infiltration of eosinophils to the airways. While the production of Type 2 cytokines has been associated with TH2 lymphocytes, increasing evidence indicates that group 2 innate lymphoid cells (ILC2) play an important role in the production of the Type 2 cytokines interleukin (IL)-5 and IL-13, which likely amplifies the recruitment of eosinophils from the blood to the airways. In that regard, recent asthma treatments have been focusing on blocking Type 2 cytokines, notably IL-4, IL-5, and IL-13. These treatments mainly result in decreased blood or sputum eosinophil counts as well as decreased asthma symptoms. This supports that therapies blocking eosinophil recruitment and activation are valuable tools in the management of asthma and its severity. Herein, we review the mechanisms involved in eosinophil and ILC2 recruitment to the airways, with an emphasis on eotaxins, other chemokines as well as their receptors. We also discuss the involvement of other chemoattractants, notably the bioactive lipids 5-oxo-eicosatetraenoic acid, prostaglandin D2, and 2-arachidonoyl-glycerol. Given that eosinophil biology differs between human and mice, we also highlight and discuss their responsiveness toward the different eosinophil chemoattractants.
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Affiliation(s)
- Marie-Chantal Larose
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Faculté de Médecine, Département de Médecine, Université Laval, Québec City, QC, Canada
| | - Anne-Sophie Archambault
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Faculté de Médecine, Département de Médecine, Université Laval, Québec City, QC, Canada
| | - Véronique Provost
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Faculté de Médecine, Département de Médecine, Université Laval, Québec City, QC, Canada
| | - Michel Laviolette
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Faculté de Médecine, Département de Médecine, Université Laval, Québec City, QC, Canada
| | - Nicolas Flamand
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Faculté de Médecine, Département de Médecine, Université Laval, Québec City, QC, Canada
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104
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Ueki S, Tokunaga T, Fujieda S, Honda K, Hirokawa M, Spencer LA, Weller PF. Eosinophil ETosis and DNA Traps: a New Look at Eosinophilic Inflammation. Curr Allergy Asthma Rep 2017; 16:54. [PMID: 27393701 DOI: 10.1007/s11882-016-0634-5] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The traditional paradigm of eosinophils as end-stage damaging cells has mainly relied on their release of cytotoxic proteins. Cytokine-induced cell survival and secretion of granular contents from tissue-dwelling eosinophil are thought to be important mechanisms for eosinophilic inflammatory disorders, although the occurrence of cytolysis and its products (i.e., free extracellular granules) has been observed in affected lesions. Recent evidence indicates that activated eosinophils can exhibit a non-apoptotic cell death pathway, namely extracellular trap cell death (ETosis) that mediates the eosinophil cytolytic degranulation. Here, we discuss the current concept of eosinophil ETosis which provides a new look at eosinophilic inflammation. Lessons from eosinophilic chronic rhinosinusitis revealed that ETosis-derived DNA traps, composed of stable web-like chromatin, contribute to the properties of highly viscous eosinophilic mucin and impairments in its clearance. Intact granules entrapped in DNA traps are causing long-lasting inflammation but also might have immunoregulatory roles. Eosinophils possess a way to have post-postmortem impacts on innate immunity, local immune response, sterile inflammation, and tissue damage.
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Affiliation(s)
- Shigeharu Ueki
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1, Hondo, Akita, 010-8543, Japan.
| | - Takahiro Tokunaga
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Fukui, Fukui, Japan
| | - Shigeharu Fujieda
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Fukui, Fukui, Japan
| | - Kohei Honda
- Department of Otorhinolaryngology, Head and Neck Surgery, Akita Graduate School of Medicine, Akita, Japan
| | - Makoto Hirokawa
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1, Hondo, Akita, 010-8543, Japan
| | - Lisa A Spencer
- Divisions of Allergy and Inflammation and Infectious Diseases, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Peter F Weller
- Divisions of Allergy and Inflammation and Infectious Diseases, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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105
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Botan V, Dos Santos Borges TK, Rocha Alves ÉA, Claudino Pereira Couto S, Bender Kohnert Seidler H, Muniz-Junqueira MI. Enhanced activation of eosinophils in peripheral blood and implications for eosinophilic esophagitis diagnosis. J Gastroenterol Hepatol 2017; 32:1318-1327. [PMID: 28005266 DOI: 10.1111/jgh.13710] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND AIM Eosinophils are markers of the eosinophilic esophagitis (EoE) disease, and this work aimed to assess whether activation of eosinophils could be a noninvasive test to contribute for EoE diagnosis. METHODS The activation state of peripheral blood eosinophils in EoE patients and control subjects was assessed based on the morphological aspects of the eosinophil after adherence to slide. Cyclooxygenase-2 and 5-lipoxygenase expressions were evaluated by means of immunofluorescence microscopy to verify if and which eicosanoid pathway is triggered in eosinophils in blood in EoE. RESULTS The eosinophils of patients with EoE were significantly more activated than those of control individuals. The lowest percentage of normal eosinophils for control subjects was 40%, while the highest percentage of eosinophils of normal aspect for patients with EoE was 32%. Considering 36% as a cutoff for normal eosinophils, this value differentiated all individuals with EoE from individuals without the disease with a sensitivity of 100%, considering the diagnosis of EoE as currently defined. Eosinophils of EoE patients showed higher expression of cyclooxygenase-2 than those of control subjects. CONCLUSIONS The quantification of morphological changes in eosinophils is a feasible, easy, and reliable manner to identify EoE patients. Therefore, patients with symptoms of esophageal dysfunction showing higher than 36% activated eosinophils in peripheral blood could be a useful way to help definition and diagnostic criterion for EoE.
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Affiliation(s)
- Valéria Botan
- Laboratory of Cellular Immunology, Pathology, Faculty of Medicine, University of Brasília, Brasília, Distrito Federal, Brazil.,Alergya Clinic, Brasília, Distrito Federal, Brazil
| | - Tatiana Karla Dos Santos Borges
- Laboratory of Cellular Immunology, Pathology, Faculty of Medicine, University of Brasília, Brasília, Distrito Federal, Brazil
| | | | - Shirley Claudino Pereira Couto
- Laboratory of Cellular Immunology, Pathology, Faculty of Medicine, University of Brasília, Brasília, Distrito Federal, Brazil
| | - Heinrich Bender Kohnert Seidler
- Brasiliensis Laboratory, Brasília, Distrito Federal, Brazil.,Catholic University of Brasília, Brasília, Distrito Federal, Brazil
| | - Maria Imaculada Muniz-Junqueira
- Laboratory of Cellular Immunology, Pathology, Faculty of Medicine, University of Brasília, Brasília, Distrito Federal, Brazil
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106
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Luckenbaugh AN, Marks RM, Miller DC, Weizer AZ, Stoffel JT, Montgomery JS. A Management Algorithm for Mitomycin C Induced Cystitis. Bladder Cancer 2017; 3:133-138. [PMID: 28516158 PMCID: PMC5409048 DOI: 10.3233/blc-160089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Background/Objective: A post-bladder tumor resection dose of MMC can reduce non-invasive papillary (pTa) bladder cancer recurrences by up to 40%; this treatment is recommended in both the AUA and EUA non-muscle-invasive bladder cancer guidelines. A common complication of this treatment is eosinophilic cystitis. Symptoms range from mild urinary frequency and urgency to debilitating pain and dysuria. Currently, there is no established treatment algorithm for MMC-induced cystitis. Methods: Members of the Urologic Surgery Quality Collaborative (USQC), a group composed of over 160 private and academic urologists, met to discuss the management of patients with cystitis following MMC therapy. They devised a treatment algorithm based on experiences of urologic oncologists and neurourologists to aid in the diagnosis and management of MMC-induced cystitis. Results: The assessment begins with urinalysis and culture, followed by cystoscopy. For mild symptoms, behavioral therapy, including timed voids, fluid restriction and Kegel exercises are trialed. If symptoms have not resolved, treatment with an antihistamine, followed by a combination of anticholinergic and alpha-blocker medications. For persistent symptoms or severe symptoms at presentation, a course of prednisone plus antihistamine is prescribed. If symptoms are improving but have not resolved, this treatment is extended for a full 4 weeks prior to steroid taper. If symptoms do not improve, any visible bladder ulcerations are resected intraoperatively followed by an additional course of prednisone and antihistamine. Intravesical DMSO instillations and intra-ulcer steroid injection can be used as a final effort to treat this condition. Conclusion: We present the first formal management algorithm with escalating treatment intensity tailored to patient symptoms.
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Affiliation(s)
- Amy N Luckenbaugh
- Department of Urology, University of Michigan Health System, Ann Arbor, MI, USA
| | - Rory M Marks
- Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI, USA
| | - David C Miller
- Department of Urology, University of Michigan Health System, Ann Arbor, MI, USA
| | - Alon Z Weizer
- Department of Urology, University of Michigan Health System, Ann Arbor, MI, USA
| | - John T Stoffel
- Department of Urology, University of Michigan Health System, Ann Arbor, MI, USA
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107
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Novel lineage- and stage-selective effects of retinoic acid on mouse granulopoiesis: Blockade by dexamethasone or inducible NO synthase inactivation. Int Immunopharmacol 2017; 45:79-89. [DOI: 10.1016/j.intimp.2017.02.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 01/30/2017] [Accepted: 02/01/2017] [Indexed: 01/21/2023]
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108
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Arebro J, Ekstedt S, Hjalmarsson E, Winqvist O, Kumlien Georén S, Cardell LO. A possible role for neutrophils in allergic rhinitis revealed after cellular subclassification. Sci Rep 2017; 7:43568. [PMID: 28272395 PMCID: PMC5341103 DOI: 10.1038/srep43568] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 01/25/2017] [Indexed: 12/13/2022] Open
Abstract
A re-examination of former concepts is required to meet today’s medical challenges in allergic rhinitis. Previously, neutrophils have been treated as a relatively homogenous cell population found in the nose both when the patient is suffering at the height of the allergic season as well as when the patient report no symptoms. However, new data indicates that neutrophils can be divided into different subsets with diverse roles in inflammation. We showed increased levels of neutrophils in peripheral blood, nasal biopsies and nasal lavage fluid (NAL) from allergic patients during the pollen season compared to healthy controls. A closer examination revealed that the activated subset of neutrophils, CD16high CD62Ldim, outweighed the normal form CD16high CD62Lhigh in nasal tissue among these patients. This skewed distribution was not seen in controls. The normal subset prevailed in peripheral blood from patients as well as controls, whereas CD16high CD62Ldim and CD16dim CD62Ldim subsets, the latter considered “end state” neutrophils before apoptosis, were elevated in NAL. Functional in vitro experiments revealed that activated neutrophils exhibit a T cell priming capacity and an ability to enhance eosinophil migration. Activated neutrophils may thus contribute to allergic inflammation seen in allergic rhinitis by priming T cells and attracting eosinophils.
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Affiliation(s)
- Julia Arebro
- Division of ENT Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.,Department of ENT Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Sandra Ekstedt
- Division of ENT Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Eric Hjalmarsson
- Division of ENT Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Ola Winqvist
- Department of Medicine, Unit of Translational Immunology, Karolinska Institutet, Stockholm, Sweden
| | - Susanna Kumlien Georén
- Division of ENT Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Lars-Olaf Cardell
- Division of ENT Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.,Department of ENT Diseases, Karolinska University Hospital, Stockholm, Sweden
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109
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Xavier-Elsas P, Masid-de-Brito D, Vieira BM, Gaspar-Elsas MIC. Odd couple: The unexpected partnership of glucocorticoid hormones and cysteinyl-leukotrienes in the extrinsic regulation of murine bone-marrow eosinopoiesis. World J Exp Med 2017; 7:11-24. [PMID: 28261551 PMCID: PMC5316900 DOI: 10.5493/wjem.v7.i1.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/01/2016] [Accepted: 11/29/2016] [Indexed: 02/06/2023] Open
Abstract
Granulopoiesis in murine bone-marrow is regulated by both intrinsic and extrinsic factors (including hormones, drugs, inflammatory mediators and cytokines). Eosinophils, a minor subpopulation of circulating leukocytes, which remains better understood in its contributions to tissue injury in allergic disease than in its presumably beneficial actions in host defense, provide a striking example of joint regulation of granulopoiesis within murine bone-marrow by all of these classes of extrinsic factors. We first described the upregulation of eosinopoiesis in bone-marrow of allergen-sensitized mice following airway allergen challenge. Over the last decade, we were able to show a critical role for endogenous glucocorticoid hormones and cytokines in mediating this phenomenon through modification of cytokine effects, thereby supporting a positive association between stress hormones and allergic reactions. We have further shown that cysteinyl-leukotrienes (CysLT), a major proinflammatory class of lipid mediators, generated through the 5-lipoxygenase pathway, upregulate bone-marrow eosinopoiesis in vivo and in vitro. CysLT mediate the positive effects of drugs (indomethacin and aspirin) and of proallergic cytokines (eotaxin/CCL11 and interleukin-13) on in vitro eosinopoiesis. While these actions of endogenous GC and CysLT might seem unrelated and even antagonistic, we demonstrated a critical partnership of these mediators in vivo, shedding light on mechanisms linking stress to allergy: GC are required for CysLT-mediated upregulation of bone-marrow eosinopoiesis in vivo, but also attenuate subsequent ex vivo responses to CysLT. GC and CysLT therefore work together to induce eosinophilia, but through subtle regulatory mechanisms also limit the magnitude of subsequent bone-marrow responses to allergen.
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110
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Dworetzky SI, Hebrank GT, Archibald DG, Reynolds IJ, Farwell W, Bozik ME. The targeted eosinophil-lowering effects of dexpramipexole in clinical studies. Blood Cells Mol Dis 2017; 63:62-65. [PMID: 28178599 DOI: 10.1016/j.bcmd.2017.01.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 01/14/2017] [Indexed: 12/13/2022]
Abstract
Dexpramipexole, an orally bioavailable small molecule previously under clinical development in amyotrophic lateral sclerosis, was observed during routine safety hematology monitoring to demonstrate pronounced, dose- and time-dependent eosinophil-lowering effects, with minor reductions on other leukocyte counts. Analysis of hematology lab values across two double-blind, randomized placebo-controlled clinical trials at total daily doses ranging from 50mg to 300mg demonstrated that dexpramipexole consistently and markedly lowered peripheral blood eosinophils. This effect developed after 1month on treatment, required 3-4months to reach its maximum, remained constant throughout treatment, and partially recovered to baseline levels upon drug withdrawal. All doses tested were well tolerated. The overall adverse event rate was similar for dexpramipexole and placebo, and notably with no increase in infection-related adverse events associated with eosinophil-lowering effects. Given the reliance on and insufficiency of off-label chronic corticosteroid therapy for hypereosinophilic syndromes and other eosinophilic-associated diseases (EADs), a need exists for less toxic, more effective, targeted therapeutic alternatives. Further clinical studies are underway to assess the eosinophil-lowering effect of dexpramipexole in the peripheral blood and target tissues of EAD patients and whether such reductions, if observed, produce clinically important benefits.
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111
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Abstract
After partial hepatectomy, hepatocytes proliferate to restore mass and function of the liver. Macrophages, natural killer (NK) cells, natural killer T (NKT) cells, dendritic cells (DC), eosinophils, gamma delta T (γδT) cells, and conventional T cells, as well as other subsets of the immune cells residing in the liver control liver regeneration, either through direct interactions with hepatocytes or indirectly by releasing inflammatory cytokines. Here, we review recent progress regarding the immune cells in the liver and their functions during liver regeneration.
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Affiliation(s)
- Na Li
- College of Veterinary Medicine, Shaanxi Center of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Jinlian Hua
- College of Veterinary Medicine, Shaanxi Center of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
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112
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Stephen B, Hajjar J. Overview of Basic Immunology for Clinical Investigators. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 995:1-31. [PMID: 28321810 DOI: 10.1007/978-3-319-53156-4_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Tumor exists as a complex network of structures with an ability to evolve and evade the host immune surveillance mechanism. The immune milieu which includes macrophages, dendritic cells, natural killer cells, neutrophils, mast cells, B cells, and T cells are found in the core, the invasive margin, or the adjacent stromal or lymphoid component of the tumor. The immune infiltrate is heterogeneous and varies within a patient and between patients of the same tumor histology. The location, density, functionality, and the cross talk between the immune cells in the tumor microenvironment influence the nature of immune response, prognosis, and treatment outcomes in cancer patients. Therefore, an understanding of the characteristics of the immune cells and their role in tumor immune surveillance is of paramount importance to identify immune targets and to develop novel immune therapeutics in the war against cancer. In this chapter, we provide an overview of the individual components of the human immune system and the translational relevance of predictive biomarkers.
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Affiliation(s)
- Bettzy Stephen
- The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Joud Hajjar
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, 77030, USA.
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113
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Allergies: diseases closely related to cancer. BOLETIN MEDICO DEL HOSPITAL INFANTIL DE MEXICO 2016; 73:432-445. [PMID: 29421288 DOI: 10.1016/j.bmhimx.2016.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 10/20/2016] [Indexed: 12/15/2022] Open
Abstract
Allergies are hypersensitivity reactions that occur through specific type Th2 immunological mechanisms characterized by different soluble mediators, as well as specific cells of the immune system. In recent decades, evidence has emerged relating this disease with cancer development. However, most of the results of epidemiology studies have been controversial and contradictory. There are mainly two trends. While the first indicates that allergies can reduce the risk of cancer, the other indicates that they may increase this risk. The first trend can be explained by the immunosurveillance hypothesis, which states that the increased immune surveillance after the immune hyper-responsiveness can inhibit or exert a protective effect against the development of cancer. Similarly, the prophylaxis hypothesis suggests that the physical effects of allergy symptoms can prevent cancer by removing potential carcinogens. In contrast, the opposing hypothesis propose that there is a deviation of the immune response toward Th2, which favors the development of cancer, or that the process of chronic inflammation favors the generation of mutations, and therefore the development of cancer. With the purpose of understanding more about these two hypotheses, the main soluble and cellular factors of allergic diseases that could be playing a key role in the development or inhibition of cancer were considered in this review.
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114
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Ethier C, Yu Y, Cameron L, Lacy P, Davoine F. Calcitriol Reduces Eosinophil Necrosis Which Leads to the Diminished Release of Cytotoxic Granules. Int Arch Allergy Immunol 2016; 171:119-129. [PMID: 27902981 DOI: 10.1159/000450951] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 09/20/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Asthma severity and eosinophilia correlate with a deficiency in vitamin D and its active metabolite calcitriol. Calcitriol modulates numerous leukocyte functions, but its effect on eosinophils is not fully understood. We postulated that calcitriol exerts a direct effect on eosinophil biology by modulating cell survival. METHODS Purified peripheral blood eosinophils from atopic donors were incubated in the presence of calcitriol for up to 14 days with or without IL-5. The effect of calcitriol on eosinophil viability was measured using the annexin-V/propidium iodide flow cytometry assay. We also examined the release of eosinophil peroxidase (EPX) in media using a flow cytometry assay with anti-EPX antibodies, and the enzymatic activity of EPX was measured by an OPD-based colorimetric assay. RESULTS We observed that calcitriol sustained cell viability in eosinophils with a concurrent reduction of necrotic cells. This effect was amplified by the addition of IL-5. In parallel, we observed that a physiological dose of calcitriol (10 nM) significantly reduced eosinophil necrosis and cytolytic release of EPX in media when coincubated with IL-5. CONCLUSION These results suggest that calcitriol may exert a direct effect on eosinophils by reducing necrosis and the cytolytic release of inflammatory mediators like EPX.
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Affiliation(s)
- Caroline Ethier
- Pulmonary Research Group, University of Alberta, Edmonton, AB, Canada
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115
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Colangelo T, Polcaro G, Muccillo L, D'Agostino G, Rosato V, Ziccardi P, Lupo A, Mazzoccoli G, Sabatino L, Colantuoni V. Friend or foe? The tumour microenvironment dilemma in colorectal cancer. Biochim Biophys Acta Rev Cancer 2016; 1867:1-18. [PMID: 27864070 DOI: 10.1016/j.bbcan.2016.11.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/21/2016] [Accepted: 11/14/2016] [Indexed: 12/13/2022]
Abstract
The network of bidirectional homotypic and heterotypic interactions established among parenchymal tumour cells and surrounding mesenchymal stromal cells generates the tumour microenvironment (TME). These intricate crosstalks elicit both beneficial and adverse effects on tumour initiation and progression unbalancing the signals and responses from the neighbouring cells. Here, we highlight the structure, activities and evolution of TME cells considering a novel colorectal cancer (CRC) classification based on differential stromal composition and gene expression profiles. In this scenario, we scrutinise the molecular pathways that either change or become corrupted during CRC development and their relative prognostic value. Finally, we survey the therapeutic molecules directed against TME components currently available in clinical trials as well as those with stronger potential in preclinical studies. Elucidation of dynamic variations in the CRC TME cell composition and their relative contribution could provide novel diagnostic or prognostic biomarkers and allow more personalised therapeutic strategies.
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Affiliation(s)
- Tommaso Colangelo
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy; present address: Institute for Stem-cell Biology, Regenerative Medicine and Innovative Therapies (ISBReMIT), Casa Sollievo della Sofferenza-IRCCS, 71013 San Giovanni Rotondo (FG), Italy
| | - Giovanna Polcaro
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy
| | - Livio Muccillo
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy
| | - Giovanna D'Agostino
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy
| | - Valeria Rosato
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy
| | - Pamela Ziccardi
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy
| | - Angelo Lupo
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy
| | - Gianluigi Mazzoccoli
- Department of Medical Sciences, Division of Internal Medicine and Chronobiology Unit, IRCCS Scientific Institute and Regional General Hospital "Casa Sollievo della Sofferenza", 71013 San Giovanni Rotondo (FG), Italy
| | - Lina Sabatino
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy.
| | - Vittorio Colantuoni
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy.
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Advantages of laparoscopic compared to conventional surgery are not related to an innate immune response of peritoneal immune activation: an animal study in rats. Langenbecks Arch Surg 2016; 402:625-636. [PMID: 27761714 DOI: 10.1007/s00423-016-1521-1] [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: 08/09/2016] [Accepted: 10/02/2016] [Indexed: 10/20/2022]
Abstract
PURPOSE Laparoscopic surgery (LS) has proved superior compared to conventional surgery (CS) regarding morbidity, length of hospital stay, rate of wound infection and time until recovery. An improved preservation of the postoperative immune function is assumed to contribute to these benefits though the role of the local peritoneal immune response is still poorly understood. Our study investigates the peritoneal immune response subsequent to abdominal surgery and compares it between laparoscopic and conventional surgery to find an immunological explanation for the clinically proven benefits of LS. METHODS Wistar rats (N = 140) underwent laparoscopic cecum resection (LCR; N = 28), conventional cecum resection (CCR; N = 28), laparoscopic sham operation (LSO; N = 28), conventional sham operation (CSO; N = 28), or no surgical treatment (CTRL; N = 28). Postoperatively, peritoneal lavages were performed, leukocytes isolated and analyzed regarding immune function and phagocytosis activity. RESULTS Immune function was inhibited postoperatively in animals undergoing LCR or CCR compared to CTRL reflected by a lower TNF-α (CTRL 3956.65 pg/ml, LCR 2018.48 pg/ml (p = 0.023), CCR 2793.78 pg/ml (n.s.)) and IL-6 secretion (CTRL 625.84 pg/ml, LCR 142.84 pg/ml (p = 0.009), CCR 169.53 pg/ml (p = 0.01)). Phagocytosis was not affected in rats undergoing any kind of surgery compared to CTRL. Neither cytokine secretion nor phagocytosis activity differed significantly between laparoscopic and conventional surgery. CONCLUSIONS According to our findings the benefits associated with LS compared to CS cannot be explained by differences in the postoperative peritoneal innate immune response. Further studies are needed to elucidate the causes for a more favorable postoperative outcome in patients after LS compared to CS.
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Yamauchi Y, Ueki S, Konno Y, Ito W, Takeda M, Nakamura Y, Nishikawa J, Moritoki Y, Omokawa A, Saga T, Hirokawa M. The effect of hepatocyte growth factor on secretory functions in human eosinophils. Cytokine 2016; 88:45-50. [PMID: 27552115 DOI: 10.1016/j.cyto.2016.08.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 08/16/2016] [Accepted: 08/16/2016] [Indexed: 12/19/2022]
Abstract
Hepatocyte growth factor (HGF), originally identified as a potent mitogen for mature hepatocytes, is now recognized as a humoral mediator in inflammatory and immune responses. Previous studies indicated that HGF negatively regulated allergic airway inflammation. In view of eosinophils playing a role in the pathogenesis of asthma, especially in airway remodeling as a rich source of pro-fibrogenic mediators, the effects of HGF on the different types of eosinophil secretory functions were examined in this study. We found that HGF significantly inhibited IL-5-induced secretion of TGF-β and VEGF from human eosinophils. The inhibitory effect is not associated with TGF-β transcription; rather, it is associated with ultrastructural granule emptying and loss of intracellular TGF-β contents, indicating HGF inhibits the process of piecemeal degranulation. The effect of HGF on extracellular trap cell death (ETosis) that mediates cytolytic degranulation was also investigated; however, immobilized IgG- or phorbol myristate acetate-induced ETosis was only minimally attenuated by HGF. These results reveal the effect of HGF on the distinct pathways of eosinophil secretory functions and also provide novel insights into the role of HGF in the pathogenesis of allergic inflammation.
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Affiliation(s)
- Yumiko Yamauchi
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Shigeharu Ueki
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
| | - Yasunori Konno
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Wataru Ito
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan; Nagareyama Tobu Clinic, 909-1 Nazukari, Nagareyama City, Chiba 270-0145, Japan
| | - Masahide Takeda
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Yuka Nakamura
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Junko Nishikawa
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Yuki Moritoki
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Ayumi Omokawa
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Tomoo Saga
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Makoto Hirokawa
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
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118
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Affiliation(s)
- Gilda Varricchi
- a Department of Translational Medical Sciences, Division of Clinical Immunology and Allergy , University of Naples Federico II , Napoli , Italy
| | - Giorgio W Canonica
- b Allergy & Respiratory Diseases, DIMI Dept of Internal Medicine , University of Genoa, IRCCS AOU San Martino-IST , Genoa , Italy
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119
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Regulation of eosinophilia and allergic airway inflammation by the glycan-binding protein galectin-1. Proc Natl Acad Sci U S A 2016; 113:E4837-46. [PMID: 27457925 DOI: 10.1073/pnas.1601958113] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Galectin-1 (Gal-1), a glycan-binding protein with broad antiinflammatory activities, functions as a proresolving mediator in autoimmune and chronic inflammatory disorders. However, its role in allergic airway inflammation has not yet been elucidated. We evaluated the effects of Gal-1 on eosinophil function and its role in a mouse model of allergic asthma. Allergen exposure resulted in airway recruitment of Gal-1-expressing inflammatory cells, including eosinophils, as well as increased Gal-1 in extracellular spaces in the lungs. In vitro, extracellular Gal-1 exerted divergent effects on eosinophils that were N-glycan- and dose-dependent. At concentrations ≤0.25 µM, Gal-1 increased eosinophil adhesion to vascular cell adhesion molecule-1, caused redistribution of integrin CD49d to the periphery and cell clustering, but inhibited ERK(1/2) activation and eotaxin-1-induced migration. Exposure to concentrations ≥1 µM resulted in ERK(1/2)-dependent apoptosis and disruption of the F-actin cytoskeleton. At lower concentrations, Gal-1 did not alter expression of adhesion molecules (CD49d, CD18, CD11a, CD11b, L-selectin) or of the chemokine receptor CCR3, but decreased CD49d and CCR3 was observed in eosinophils treated with higher concentrations of this lectin. In vivo, allergen-challenged Gal-1-deficient mice exhibited increased recruitment of eosinophils and CD3(+) T lymphocytes in the airways as well as elevated peripheral blood and bone marrow eosinophils relative to corresponding WT mice. Further, these mice had an increased propensity to develop airway hyperresponsiveness and displayed significantly elevated levels of TNF-α in lung tissue. This study suggests that Gal-1 can limit eosinophil recruitment to allergic airways and suppresses airway inflammation by inhibiting cell migration and promoting eosinophil apoptosis.
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120
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Shen T, Gu D, Zhu Y, Shi J, Xu D, Cao X. The value of eosinophil VCS parameters in predicting hepatotoxicity of antituberculosis drugs. Int J Lab Hematol 2016; 38:514-9. [PMID: 27319362 DOI: 10.1111/ijlh.12532] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 02/22/2016] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Drug-induced liver injury (DILI) is the most frequent cause of discontinuation of antituberculosis medication and difficult to predict. In recent years, liver eosinophilia has been associated with incidence of DILI. We hypothesize that morphologic changes in reactive eosinophils associated with DILI may be determined by LH750 (Beckman Coulter, Fullerton, CA) with VCS technology. METHODS The absolute eosinophil (AEC), percentage of eosinophil (EOSI%), VCS parameters, and standard deviation (SD) of 500 health controls, 376 patients without DILI, and 50 DILI patients were compared in terms of diagnostic sensitivity and specificity for DILI. RESULTS In DILI patients, the increased mean eosinophil volume (MEV) and size variability (MEV-SD) were observed prior to alanine aminotransferase (ALT) elevations. The MEV was correlated well with ALT after therapy. The ROC curve analyses revealed that the MEV and MEV-SD had larger areas under curves (0.894, 0.815, in the week prior to DILI) compared to other parameters. Using a cutoff of 163.15 fL for the MEV and a cutoff of 17.11 for MEV-SD, the sensitivities of 81% and 72% and specificities of 82% and 80% were achieved, respectively, which are higher than other parameters prior to DILI occurred. CONCLUSIONS The MEV with size variability (MEV-SD) is a quantitative, objective, and more sensitive parameter and has a potential to be an additional indicator for DILI.
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Affiliation(s)
- T Shen
- Department of Laboratory, The Sixth People's Hospital of Nantong, Nantong Jiangsu, China
| | - D Gu
- Department of Laboratory, The Sixth People's Hospital of Nantong, Nantong Jiangsu, China
| | - Y Zhu
- Department of Laboratory, The Second Affiliated Hospital of Nantong University, Nantong Jiangsu, China
| | - J Shi
- Department of Tuberculosis, The Sixth People's Hospital of Nantong, Nantong Jiangsu, China
| | - D Xu
- CBLPath Inc., Rye Brook, NY, USA
| | - X Cao
- Department of Laboratory, The Second Affiliated Hospital of Nantong University, Nantong Jiangsu, China.
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121
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Tumor eosinophil infiltration and improved survival of colorectal cancer patients: Iowa Women's Health Study. Mod Pathol 2016; 29:516-27. [PMID: 26916075 PMCID: PMC4848192 DOI: 10.1038/modpathol.2016.42] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 01/16/2016] [Accepted: 01/18/2016] [Indexed: 02/08/2023]
Abstract
The role of the innate immune response in colorectal cancer is understudied. We examined the survival of colorectal cancer patients in relation to eosinophils, innate immune cells, infiltrating the tumor. Tissue microarrays were constructed from paraffin-embedded tumor tissues collected between 1986 and 2002 from 441 post-menopausal women diagnosed with colorectal cancer in the Iowa Women's Health Study. Tissue microarrays were stained with an eosinophil peroxidase antibody. Eosinophils in epithelial and stromal tissues within the tumor (called epithelial and stromal eosinophils, hereafter) were counted and scored into three and four categories, respectively. In addition, the degree of eosinophil degranulation (across epithelial and stromal tissues combined) was quantified and similarly categorized. We used Cox regression to estimate the hazard ratios and 95% confidence interval for all-cause and colorectal cancer death during 5-year follow-up after diagnosis and during follow-up through 2011 ('total follow-up'). The hazard ratios associated with eosinophil scores were adjusted for age of diagnosis, SEER (Surveillance, Epidemiology, and End Results) stage, tumor grade, body mass, and smoking history. High tumor stromal eosinophil score was inversely correlated with age and stage, and was associated with a decreased risk for all-cause and colorectal cancer death: hazard ratios (95% confidence intervals) were 0.61 (0.36-1.02; P-trend=0.02) and 0.48 (0.24-0.93; P-trend=0.01), respectively, during the 5-year follow-up for the highest vs lowest category. The inverse associations also existed for total follow-up for all-cause and colorectal cancer death for the highest vs lowest stromal eosinophil score: hazard ratios (95% confidence intervals) were 0.72 (0.48-1.08; P-trend=0.04) and 0.61 (0.34-1.12; P-trend=0.04), respectively. Further adjustment for treatment, comorbidities, additional lifestyle factors, tumor location, or molecular markers did not markedly change the associations, while adjustment for cytotoxic T cells slightly attenuated all associations. The infiltration of tumors with eosinophils, especially in stromal tissue, may be an important prognostic factor in colorectal cancer.
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Varricchi G, Bagnasco D, Borriello F, Heffler E, Canonica GW. Interleukin-5 pathway inhibition in the treatment of eosinophilic respiratory disorders: evidence and unmet needs. Curr Opin Allergy Clin Immunol 2016; 16:186-200. [PMID: 26859368 PMCID: PMC4768650 DOI: 10.1097/aci.0000000000000251] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE OF REVIEW Human eosinophils were first identified and named by Paul Ehrlich in 1879 on the basis of the cell's granular uptake of eosin. Although eosinophils represent approximately 1% of peripheral blood leukocytes, they have the propensity to leave the blood stream and migrate into inflamed tissues. Eosinophils and their mediators are critical effectors to asthma and eosinophilic granulomatosis with polyangiitis (EGPA). Eosinophils are equipped with a large number of cell-surface receptors and produce specific cytokines and chemokines. RECENT FINDINGS Eosinophils are the major source of interleukin-5 and highly express the interleukin-5Rα on their surface. Clinical trials evaluating monoclonal antibodies to interleukin-5 (mepolizumab and reslizumab) and its receptor interleukin-5Rα (benralizumab) have been or are underway in patients with eosinophilic asthma, EGPA and chronic obstructive pulmonary disease (COPD). Overall, targeting interleukin-5/interleukin-5Rα is associated with a marked decrease in blood and sputum eosinophilia, the number of exacerbations and improvement of some clinical parameters in adult patients with severe eosinophilic asthma. Pilot studies suggest that mepolizumab might be a glucocorticoid-sparing treatment in patients with EGPA. A preliminary study found that benralizumab did not reduce the exacerbations and did modify lung function in patients with eosinophilic COPD. SUMMARY The review examines recent advances in the biology of eosinophils and how targeting the interleukin-5 pathway might offer benefit to some patients with severe asthma, EGPA, and COPD. Interleukin-5/interleukin-5Rα-targeted treatments offer promises to patients with eosinophilic respiratory disorders.
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Affiliation(s)
- Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, Naples
| | - Diego Bagnasco
- Respiratory Diseases and Allergy Clinic, DIMI-Department of Internal Medicine, Respiratory Diseases and Allergy Clinic, University of Genoa, IRCCS AOU S. Martino Genoa, Genoa
| | - Francesco Borriello
- Department of Translational Medical Sciences, University of Naples Federico II, Naples
| | - Enrico Heffler
- Department of Clinical and Experimental Medicine, Respiratory Disease and Allergology, University of Catania, Catania, Italy
| | - Giorgio W. Canonica
- Respiratory Diseases and Allergy Clinic, DIMI-Department of Internal Medicine, Respiratory Diseases and Allergy Clinic, University of Genoa, IRCCS AOU S. Martino Genoa, Genoa
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Human eosinophil activin A synthesis and mRNA stabilization are induced by the combination of IL-3 plus TNF. Immunol Cell Biol 2016; 94:701-8. [PMID: 27001469 PMCID: PMC4980187 DOI: 10.1038/icb.2016.30] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 02/26/2016] [Accepted: 03/16/2016] [Indexed: 12/14/2022]
Abstract
Eosinophils contribute to immune regulation and wound healing/fibrosis in various diseases including asthma. Growing appreciation for the role of activin A in such processes led us to hypothesize that eosinophils are a source of this TGF-β superfamily member. TNFα (TNF) induces activin A by other cell types and is often present at the site of allergic inflammation along with the eosinophil activating common β (βc) chain-signaling cytokines (IL-5, IL-3, GM-CSF). Previously, we established that the combination of TNF plus a βc chain-signaling cytokine synergistically induces eosinophil synthesis of the remodeling enzyme MMP-9. Therefore, eosinophils were stimulated ex vivo by these cytokines and in vivo through an allergen-induced airway inflammatory response. In contrast to IL-5+TNF or GM-CSF+TNF, the combination of IL-3+TNF synergistically induced activin A synthesis and release by human blood eosinophils. IL-3+TNF enhanced activin A mRNA stability, which required sustained signaling of pathways downstream of p38 and ERK MAP kinases. In vivo, following segmental airway allergen challenge of subjects with mild allergic asthma, activin A mRNA was upregulated in airway eosinophils compared to circulating eosinophils, and ex vivo, circulating eosinophils tended to release activin A in response to IL-3+TNF. These data provide evidence that eosinophils release activin A and that this function is enhanced when eosinophils are present in an allergen-induced inflammatory environment. Moreover, these data provide the first evidence for post-transcriptional control of activin A mRNA. We propose that, an environment rich in IL-3+TNF will lead to eosinophil–derived activin A, which plays an important role in regulating inflammation and/or fibrosis.
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Grosicki M, Wójcik T, Chlopicki S, Kieć-Kononowicz K. In vitro study of histamine and histamine receptor ligands influence on the adhesion of purified human eosinophils to endothelium. Eur J Pharmacol 2016; 777:49-59. [PMID: 26939881 DOI: 10.1016/j.ejphar.2016.02.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 02/25/2016] [Accepted: 02/26/2016] [Indexed: 01/08/2023]
Abstract
It is a well-known fact that histamine is involved in eosinophil-dependent inflammatory responses including cellular chemotaxis and migration. Nevertheless, the relative role of histamine receptors in the mechanisms of eosinophils adhesion to endothelial cells is not known. Therefore the aim of presented study was to examine the effect of selective histamine receptors ligands on eosinophils adhesion to endothelium. For that purpose the highly purified human eosinophils have been isolated from the peripheral blood. The viability and functional integrity of isolated eosinophils have been validated in several tests. Histamine as well as 4-methylhistamine (selective H4 agonist) in concentration-dependent manner significantly increased number of eosinophils that adhere to endothelium. Among the selective histamine receptors antagonist or H1 inverse agonist only JNJ7777120 (histamine H4 antagonist) and thioperamide (dual histamine H3/H4 antagonist) had direct effect on eosinophils adhesion to endothelial cells. Antagonists of H1 (diphenhydramine, mepyramine) H2 (ranitidine and famotidine) and H3 (pitolisant) histamine receptors were ineffective. To the best of our knowledge, this is the first study to demonstrate that histamine receptor H4 plays a dominant role in histamine-induced eosinophils adhesion to endothelium.
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Affiliation(s)
- Marek Grosicki
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9, 30-688 Krakow, Poland; Jagiellonian Center for Experimental Therapeutics (JCET), Bobrzyńskiego 14, 30-348, Krakow, Poland
| | - Tomasz Wójcik
- Jagiellonian Center for Experimental Therapeutics (JCET), Bobrzyńskiego 14, 30-348, Krakow, Poland
| | - Stefan Chlopicki
- Jagiellonian Center for Experimental Therapeutics (JCET), Bobrzyńskiego 14, 30-348, Krakow, Poland; Department of Experimental Pharmacology, Chair of Pharmacology, Jagiellonian University Medical College, Grzegórzecka 16, 31-531, Krakow, Poland
| | - Katarzyna Kieć-Kononowicz
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Technology and Biotechnology of Drugs, Medyczna 9, 30-688 Krakow, Poland.
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125
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Long H, Liao W, Wang L, Lu Q. A Player and Coordinator: The Versatile Roles of Eosinophils in the Immune System. Transfus Med Hemother 2016; 43:96-108. [PMID: 27226792 PMCID: PMC4872051 DOI: 10.1159/000445215] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/04/2016] [Indexed: 12/18/2022] Open
Abstract
Eosinophils have traditionally been associated with allergic diseases and parasite infection. Research advances in the recent decades have brought evolutionary changes in our understanding of eosinophil biology and its roles in immunity. It is currently recognized that eosinophils play multiple roles in both innate and adaptive immunity. As effector cells in innate immunity, eosinophils exert a pro-inflammatory and destructive role in the Th2 immune response associated with allergic inflammation or parasite infection. Eosinophils can also be recruited by danger signals released by pathogen infections or tissue injury, inducing host defense against parasitic, fungal, bacterial or viral infection or promoting tissue repair and remodeling. Eosinophils also serve as nonprofessional antigen-presenting cells in response to allergen challenge or helminth infection, and, meanwhile, are known to function as a versatile coordinator that actively regulates or interacts with various immune cells including T lymphocytes and dendritic cells. More roles of eosinophils implicated in immunity have been proposed including in immune homeostasis, allograft rejection, and anti-tumor immunity. Eosinophil interactions with structural cells are also implicated in the mechanisms in allergic inflammation and in Helicobacter pylori gastritis. These multifaceted roles of eosinophils as both players and coordinators in immune system are discussed in this review.
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Affiliation(s)
- Hai Long
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, China
| | - Wei Liao
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, China
| | - Ling Wang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Qianjin Lu
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, China
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126
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He M, Ichinose T, Kobayashi M, Arashidani K, Yoshida S, Nishikawa M, Takano H, Sun G, Shibamoto T. Differences in allergic inflammatory responses between urban PM2.5 and fine particle derived from desert-dust in murine lungs. Toxicol Appl Pharmacol 2016; 297:41-55. [PMID: 26917405 DOI: 10.1016/j.taap.2016.02.017] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/17/2016] [Accepted: 02/19/2016] [Indexed: 01/28/2023]
Abstract
The biological and chemical natures of materials adsorbed onto fine particulate matter (PM2.5) vary by origin and passage routes. The exacerbating effects of the two samples-urban PM2.5 (U-PM2.5) collected during the hazy weather in a Chinese city and fine particles (ASD-PM2.5) collected during Asian sand dust (ASD) storm event days in Japan-on murine lung eosinophilia were compared to clarify the role of toxic materials in PM2.5. The amounts of β-glucan and mineral components were higher in ASD-PM2.5 than in U-PM2.5. On the other hand, organic chemicals, including polycyclic aromatic hydrocarbons (PAHs), were higher in U-PM2.5 than in ASD-PM2.5. When BALB/c mice were intratracheally instilled with U-PM2.5 and ASD-PM2.5 (total 0.4 mg/mouse) with or without ovalbumin (OVA), various biological effects were observed, including enhancement of eosinophil recruitment induced by OVA in the submucosa of the airway, goblet cell proliferation in the bronchial epithelium, synergic increase of OVA-induced eosinophil-relevant cytokines and a chemokine in bronchoalveolar lavage fluid, and increase of serum OVA-specific IgG1 and IgE. Data demonstrate that U-PM2.5 and ASD-PM2.5 induced allergic inflammatory changes and caused lung pathology. U-PM2.5 and ASD-PM2.5 increased F4/80(+) CD11b(+) cells, indicating that an influx of inflammatory and exudative macrophages in lung tissue had occurred. The ratio of CD206 positive F4/80(+) CD11b(+) cells (M2 macrophages) in lung tissue was higher in the OVA+ASD-PM2.5 treated mice than in the OVA+U-PM2.5 treated mice. These results suggest that the lung eosinophilia exacerbated by both PM2.5 is due to activation of a Th2-associated immune response along with induced M2 macrophages and the exacerbating effect is greater in microbial element (β-glucan)-rich ASD-PM2.5 than in organic chemical-rich U-PM2.5.
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Affiliation(s)
- Miao He
- Environment and Non-communicable Disease Research Center, School of Public Health, China Medical University, Shenyang 110122, China; Department of Health Sciences, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan.
| | - Takamichi Ichinose
- Department of Health Sciences, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan.
| | - Makoto Kobayashi
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa 920-0293, Japan
| | - Keiichi Arashidani
- Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Fukuoka 807-8555, Japan
| | - Seiichi Yoshida
- Department of Health Sciences, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan
| | - Masataka Nishikawa
- Environmental Chemistry Division, National Institute for Environmental Studies, Ibaraki 305-8506, Japan
| | - Hirohisa Takano
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8530, Japan
| | - Guifan Sun
- Environment and Non-communicable Disease Research Center, School of Public Health, China Medical University, Shenyang 110122, China
| | - Takayuki Shibamoto
- Department of Environmental Toxicology, University of California, Davis, CA 95616, USA
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Abstract
Low-grade inflammation in the obese AT (AT) and the liver is a critical player in the development of obesity-related metabolic dysregulation, including insulin resistance, type 2 diabetes and non-alcoholic steatohepatitis (NASH). Myeloid as well as lymphoid cells infiltrate the AT and the liver and expand within these metabolic organs as a result of excessive nutrient intake, thereby exacerbating tissue inflammation. Macrophages are the paramount cell population in the field of metabolism-related inflammation; as obesity progresses, a switch takes place within the AT environment from an M2-alternatively activated macrophage state to an M1-inflammatory macrophage-dominated milieu. M1-polarized macrophages secrete inflammatory cytokines like TNF in the obese AT; such cytokines contribute to insulin resistance in adipocytes. Besides macrophages, also CD8+ T cells promote inflammation in the AT and the liver and thereby the deterioration of the metabolic balance in adipocytes and hepatocytes. Other cells of the innate immunity, such as neutrophils or mast cells, interfere with metabolic homeostasis as well. On the other hand, eosinophils or T-regulatory cells, the number of which in the AT decreases in the course of obesity, function to maintain metabolic balance by ameliorating inflammatory processes. In addition, eosinophils and M2-polarized macrophages may contribute to "beige" adipogenesis under lean conditions; beige adipocytes are located predominantly in the subcutaneous AT and have thermogenic and optimal energy-dispensing properties like brown adipocytes. This chapter will summarize the different aspects of the regulation of homeostasis of metabolic tissues by immune cells.
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Affiliation(s)
- Antonios Chatzigeorgiou
- Department of Clinical Pathobiochemistry, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany.
- Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany.
- Paul Langerhans Institute Dresden, German Center for Diabetes Research, Dresden, Germany.
| | - Triantafyllos Chavakis
- Department of Clinical Pathobiochemistry, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
- Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden, German Center for Diabetes Research, Dresden, Germany
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128
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Zucker SD, Vogel ME, Kindel TL, Smith DLH, Idelman G, Avissar U, Kakarlapudi G, Masnovi ME. Bilirubin prevents acute DSS-induced colitis by inhibiting leukocyte infiltration and suppressing upregulation of inducible nitric oxide synthase. Am J Physiol Gastrointest Liver Physiol 2015; 309:G841-54. [PMID: 26381705 PMCID: PMC4652140 DOI: 10.1152/ajpgi.00149.2014] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 08/21/2015] [Indexed: 01/31/2023]
Abstract
Bilirubin is thought to exert anti-inflammatory effects by inhibiting vascular cell adhesion molecule-1 (VCAM-1)-dependent leukocyte migration and by suppressing the expression of inducible nitric oxide synthase (iNOS). As VCAM-1 and iNOS are important mediators of tissue injury in the dextran sodium sulfate (DSS) murine model of inflammatory colitis, we examined whether bilirubin prevents colonic injury in DSS-treated mice. Male C57BL/6 mice were administered 2.5% DSS in the drinking water for 7 days, while simultaneously receiving intraperitoneal injections of bilirubin (30 mg/kg) or potassium phosphate vehicle. Disease activity was monitored, peripheral blood counts and serum nitrate levels were determined, and intestinal specimens were analyzed for histological injury, leukocyte infiltration, and iNOS expression. The effect of bilirubin on IL-5 production by HSB-2 cells and on Jurkat cell transendothelial migration also was determined. DSS-treated mice that simultaneously received bilirubin lost less body weight, had lower serum nitrate levels, and exhibited reduced disease severity than vehicle-treated animals. Concordantly, histopathological analyses revealed that bilirubin-treated mice manifested significantly less colonic injury, including reduced infiltration of eosinophils, lymphocytes, and monocytes, and diminished iNOS expression. Bilirubin administration also was associated with decreased eosinophil and monocyte infiltration into the small intestine, with a corresponding increase in peripheral blood eosinophilia. Bilirubin prevented Jurkat migration but did not alter IL-5 production. In conclusion, bilirubin prevents DSS-induced colitis by inhibiting the migration of leukocytes across the vascular endothelium and by suppressing iNOS expression.
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Affiliation(s)
- Stephen D. Zucker
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Megan E. Vogel
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Tammy L. Kindel
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Darcey L. H. Smith
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Gila Idelman
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Uri Avissar
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Ganesh Kakarlapudi
- Division of Digestive Diseases, University of Cincinnati, Cincinnati, Ohio
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Griseri T, Arnold IC, Pearson C, Krausgruber T, Schiering C, Franchini F, Schulthess J, McKenzie BS, Crocker PR, Powrie F. Granulocyte Macrophage Colony-Stimulating Factor-Activated Eosinophils Promote Interleukin-23 Driven Chronic Colitis. Immunity 2015. [PMID: 26200014 PMCID: PMC4518500 DOI: 10.1016/j.immuni.2015.07.008] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The role of intestinal eosinophils in immune homeostasis is enigmatic and the molecular signals that drive them from protective to tissue damaging are unknown. Most commonly associated with Th2 cell-mediated diseases, we describe a role for eosinophils as crucial effectors of the interleukin-23 (IL-23)-granulocyte macrophage colony-stimulating factor (GM-CSF) axis in colitis. Chronic intestinal inflammation was characterized by increased bone marrow eosinopoiesis and accumulation of activated intestinal eosinophils. IL-5 blockade or eosinophil depletion ameliorated colitis, implicating eosinophils in disease pathogenesis. GM-CSF was a potent activator of eosinophil effector functions and intestinal accumulation, and GM-CSF blockade inhibited chronic colitis. By contrast neutrophil accumulation was GM-CSF independent and dispensable for colitis. In addition to TNF secretion, release of eosinophil peroxidase promoted colitis identifying direct tissue-toxic mechanisms. Thus, eosinophils are key perpetrators of chronic inflammation and tissue damage in IL-23-mediated immune diseases and it suggests the GM-CSF-eosinophil axis as an attractive therapeutic target. GM-CSF synergizes with IL-5 to exacerbate eosinopoiesis during chronic colitis GM-CSF-activated eosinophils promote IL-23 driven colitis Depletion of eosinophils, but not of neutrophils, dampens colitis GM-CSF increases eosinophil production of inflammatory cytokines TNF and IL-13
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Affiliation(s)
- Thibault Griseri
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK; Translational Gastroenterology Unit, Experimental Medicine Division Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Isabelle C Arnold
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK; Translational Gastroenterology Unit, Experimental Medicine Division Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Claire Pearson
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK; Translational Gastroenterology Unit, Experimental Medicine Division Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Thomas Krausgruber
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK; Translational Gastroenterology Unit, Experimental Medicine Division Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Chris Schiering
- Translational Gastroenterology Unit, Experimental Medicine Division Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Fanny Franchini
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK; Translational Gastroenterology Unit, Experimental Medicine Division Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Julie Schulthess
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK; Translational Gastroenterology Unit, Experimental Medicine Division Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Brent S McKenzie
- CSL Ltd. Research Department, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Paul R Crocker
- Division of Cell Signalling and Immunology, College of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Fiona Powrie
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK; Translational Gastroenterology Unit, Experimental Medicine Division Nuffield Department of Clinical Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK.
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130
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Brown R, Chevalier G, Hill M. Grounding after moderate eccentric contractions reduces muscle damage. Open Access J Sports Med 2015; 6:305-17. [PMID: 26443876 PMCID: PMC4590684 DOI: 10.2147/oajsm.s87970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Grounding a human to the earth has resulted in changes in the physiology of the body. A pilot study on grounding and eccentric contractions demonstrated shortened duration of pain, reduced creatine kinase (CK), and differences in blood parameters. This follow-up study was conducted to investigate the effects of grounding after moderate eccentric contractions on pain, CK, and complete blood counts. Thirty-two healthy young men were randomly divided into grounded (n=16) and sham-grounded (n=16) groups. On days 1 through 4, visual analog scale for pain evaluations and blood draws were accomplished. On day 1, the participants performed eccentric contractions of 200 half-knee bends. They were then grounded or sham-grounded to the earth for 4 hours on days 1 and 2. Both groups experienced pain on all posttest days. On day 2, the sham-grounded group experienced significant CK increase (P<0.01) while the CK of the grounded group did not increase significantly; the between-group difference was significant (P=0.04). There was also an increase in the neutrophils of the grounded group on day 3 (P=0.05) compared to the sham-grounded group. There was a significant increase in platelets in the grounded group on days 2 through 4. Grounding produced changes in CK and complete blood counts that were not shared by the sham-grounded group. Grounding significantly reduced the loss of CK from the injured muscles indicating reduced muscle damage. These results warrant further study on the effects of earthing on delayed onset muscle damage.
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Affiliation(s)
- Richard Brown
- Department of Human Physiology, University of Oregon, Eugene, OR, USA
| | - Gaétan Chevalier
- Developmental and Cell Biology Department, University of California at Irvine, Irvine, CA, USA
| | - Michael Hill
- Garden Way Chiropractic Center and Sports Injury Clinic, Eugene, OR, USA
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131
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Guigas B, Molofsky AB. A worm of one's own: how helminths modulate host adipose tissue function and metabolism. Trends Parasitol 2015; 31:435-41. [PMID: 25991556 PMCID: PMC4567404 DOI: 10.1016/j.pt.2015.04.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 04/15/2015] [Accepted: 04/16/2015] [Indexed: 12/16/2022]
Abstract
Parasitic helminths have coexisted with human beings throughout time. Success in eradicating helminths has limited helminth-induced morbidity and mortality but is also correlated with increasing rates of 'western' diseases, including metabolic syndrome and type 2 diabetes. Recent studies in mice describe how type 2 immune cells, traditionally associated with helminth infection, maintain adipose tissue homeostasis and promote adipose tissue beiging, protecting against obesity and metabolic dysfunction. Here, we review these studies and discuss how helminths and helminth-derived molecules may modulate these physiologic pathways to improve metabolic functions in specific tissues, such as adipose and liver, as well as at the whole-organism level.
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Affiliation(s)
- Bruno Guigas
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands; Department of Molecular Cellular Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ari B Molofsky
- Department of Microbiology & Immunology, University of California, San Francisco, CA, USA; Department of Laboratory Medicine, University of California, San Francisco, CA, USA.
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132
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Lee HJ, Lee EK, Seo YE, Shin YH, Kim HS, Chun YH, Yoon JS, Kim HH, Han MY, Kim CK, Kim KE, Koh YY, Kim JT. Roles of Bcl-2 and caspase-9 and -3 in CD30-induced human eosinophil apoptosis. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2015; 50:145-152. [PMID: 26254825 DOI: 10.1016/j.jmii.2015.05.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 04/01/2015] [Accepted: 05/28/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND/PURPOSE Activation of cell surface CD30 by immobilized anti-CD30 monoclonal antibodies (mAb) induces strong apoptosis in human eosinophils. This anti-CD30 mAb-induced eosinophil apoptosis is inhibited by the addition of inhibitors of p38, ERK1/2 mitogen-activated protein kinases, and phosphatidylinositol 3-kinase. However, there is little data investigating the role of Bcl-2 and caspases in eosinophil apoptosis induced by anti-CD30 mAb. We sought to determine whether anti-CD30 mAb induces human eosinophil apoptosis via Bcl-2 and caspase pathways. METHODS Peripheral blood was drawn from 37 healthy volunteers. The CD30 expression on eosinophils was measured at various time points. Eosinophils were then cultured in plates precoated with anti-CD30 mAb (clone Ber-H8), isotype control immunoglobulin G1, interleukin (IL)-5, or dexamethasone. Western blot analysis was performed to determine the expression of Bcl-2, procaspase-8, -9, and -3, and caspase-8, -9, and -3 after cross-linking of CD30. Human eosinophils were also cultured in plates precoated with anti-CD30 mAb (clone Ber-H8) in the presence or absence of caspase-9 or -3 inhibitors. Eosinophil apoptosis was assessed using flow cytometry. RESULTS The addition of anti-CD30 mAb significantly increased eosinophil apoptosis compared with controls. In western blot analysis, the addition of anti-CD30 mAb significantly decreased the expression of Bcl-2 and procaspase-9 and -3 and increased the expression of caspase-9 and -3. The addition of caspase-9 or -3 inhibitors decreased anti-CD30 mAb-induced human eosinophil apoptosis. Procaspase-8 or caspase-8 expression was not changed in response to various stimuli. CONCLUSION Anti-CD30 mAb-induced human eosinophil apoptosis is likely to be mediated through Bcl-2 and caspase-9 and -3.
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Affiliation(s)
- Hye Jin Lee
- Department of Pediatrics, School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eun-Kyoung Lee
- Department of Pediatrics, School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young Eun Seo
- Department of Pediatrics, School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Youn Ho Shin
- Department of Medicine, The Graduate School, Yonsei University, Seoul, Republic of Korea; Department of Pediatrics, CHA University School of Medicine, Seoul, Republic of Korea
| | - Hwan Soo Kim
- Department of Pediatrics, School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoon Hong Chun
- Department of Pediatrics, School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jong-Seo Yoon
- Department of Pediatrics, School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyun Hee Kim
- Department of Pediatrics, School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Man Yong Han
- Department of Pediatrics, CHA University School of Medicine, Seoul, Republic of Korea
| | - Chang-Keun Kim
- Asthma and Allergy Center, Department of Pediatrics, Inje University Sanggye Paik Hospital, Seoul, Republic of Korea
| | - Kyu-Earn Kim
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Yull Koh
- Department of Pediatrics, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jin Tack Kim
- Department of Pediatrics, School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Abstract
Eosinophil-associated disorders can affect practically all tissues and organs in the body, either individually or in combination. This article provides an overview of end-organ manifestations of eosinophilia and discusses selected organ systems, including the upper and lower respiratory, cardiovascular, gastrointestinal, nervous, dermatologic, and renal systems. Mechanisms by which eosinophilia leads to end-organ damage are also considered.
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Affiliation(s)
- Praveen Akuthota
- Division of Pulmonary, Critical Care, and Sleep Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA; Division of Allergy and Inflammation, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA.
| | - Peter F Weller
- Division of Allergy and Inflammation, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA; Division of Infectious Diseases, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA
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134
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He M, Ichinose T, Ren Y, Song Y, Yoshida Y, Arashidani K, Yoshida S, Nishikawa M, Takano H, Sun G. PM2.5-rich dust collected from the air in Fukuoka, Kyushu, Japan, can exacerbate murine lung eosinophilia. Inhal Toxicol 2015; 27:287-99. [PMID: 26017186 DOI: 10.3109/08958378.2015.1045051] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
PM2.5 can exacerbate asthma. Organic substances adsorbed on PM2.5-rich dust (PM2.5rd) were inactivated by heating at 360 °C. To characterize the role of organic substances, the effects of PM2.5rd and heated PM2.5-rich dust (H-PM2.5 rd) on allergic lung inflammation were investigated. BALB/c mice were intratracheally administered PM2.5rd or H-PM2.5rd with or without ovalbumin (OVA) four times at 2-week intervals. PM2.5rd, but not H-PM2.5rd, caused neutrophilic alveolitis and bronchitis. In the presence of OVA, PM2.5rd caused severe eosinophil infiltration and goblet cells proliferation in airways, along with a marked induction of the Th2 cytokines interleukin (IL)-4 and IL-13, and the eosinophil-related cytokine IL-5 in bronchoalveolar lavage fluid (BALF). OVA + H-PM2.5rd caused a weaker response. PM2.5rd showed adjuvant effects on OVA-specific immunoglobulin E (IgE) and IgG1 production, but H-PM2.5rd showed minimal effects. These findings suggested that PM2.5rd-bound substances might aggravate lung eosinophilia. To clarify the roles of TLR2, TLR4, and MyD88 on cytokine production in PM2.5rd, murine bone marrow-derived macrophages (BMDMs) from wild-type (WT), TLR2(-/-), TLR4(-/-), and MyD88(-/-) BALB/c mice were stimulated with dust. Cytokine production was low or undetectable in TLR4(-/-) cells, but occurred from TLR2(-/-) cells, and production by MyD88(-/-) cells was higher than by TLR4(-/-) cells. These results suggest that TLR4 and TLR2 ligands (LPS and β-glucan, respectively) mainly contributed to cytokines production induced by PM2.5rd. In addition to chemical substances, PM2.5-bound microbial substances might act in inflammatory and allergic lung diseases.
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Affiliation(s)
- Miao He
- Environment and Non-communicable Disease Research Center, School of Public Health, China Medical University , Shenyang , China
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135
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Ramos-Martínez E, Gutierrez-Kobeh L, Villaseñor-Cardoso MI. The role of vitamin D in the control of Leishmania infection. Can J Physiol Pharmacol 2015; 93:369-76. [DOI: 10.1139/cjpp-2014-0372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Vitamin D has been described as an essential element for maintaining the homeostasis of mineral content in the body and bone architecture. However, our view of the physiological functions of this micronutrient has radically changed, owing to the vast number of properties, not calcium-related, mediated by its nuclear receptor. This receptor has been found in a variety of cells, including the immune cells, where many of the functions performed by vitamin D are related to inflammation. Although the effect of vitamin D has been widely studied in many diseases caused by viruses or bacteria, very little is known about its role in parasitic diseases, such as leishmaniasis, which is a vector-borne disease caused by different species of the intracellular parasite Leishmania spp. This disease occurs as a spectrum of different clinical syndromes, all of them characterized by a large amount of tissue damage, sometimes leading to necrosis. Owing to the involvement of vitamin D in inflammation and wound healing, its role in leishmaniasis must be relevant, and could be used as an adjuvant for the control of this parasitic disease, opening a possibility for a therapeutic application.
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Affiliation(s)
- Espiridión Ramos-Martínez
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Dr. Balmis 148, Colonia Doctores, Cuauhtemoc, México D.F. 06720, México
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Dr. Balmis 148, Colonia Doctores, Cuauhtemoc, México D.F. 06720, México
| | - Laila Gutierrez-Kobeh
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Dr. Balmis 148, Colonia Doctores, Cuauhtemoc, México D.F. 06720, México
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Dr. Balmis 148, Colonia Doctores, Cuauhtemoc, México D.F. 06720, México
| | - Mónica Irais Villaseñor-Cardoso
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Dr. Balmis 148, Colonia Doctores, Cuauhtemoc, México D.F. 06720, México
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Dr. Balmis 148, Colonia Doctores, Cuauhtemoc, México D.F. 06720, México
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136
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Liang L, Willis-Owen SAG, Laprise C, Wong KCC, Davies GA, Hudson TJ, Binia A, Hopkin JM, Yang IV, Grundberg E, Busche S, Hudson M, Rönnblom L, Pastinen TM, Schwartz DA, Lathrop GM, Moffatt MF, Cookson WOCM. An epigenome-wide association study of total serum immunoglobulin E concentration. Nature 2015; 520:670-674. [PMID: 25707804 PMCID: PMC4416961 DOI: 10.1038/nature14125] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 11/27/2014] [Indexed: 12/19/2022]
Abstract
Immunoglobulin E (IgE) is a central mediator of allergic (atopic) inflammation. Therapies directed against IgE can alleviate hay fever and allergic asthma. Genetic association studies have not yet identified novel therapeutic targets or pathways underlying IgE regulation. We therefore surveyed epigenetic associations between serum IgE concentrations and methylation at loci concentrated in CpG islands genome wide in 95 nuclear pedigrees, using DNA from peripheral blood leukocytes. We validated positive results in additional families and in subjects from the general population. Here we show replicated associations--with a meta-analysis false discovery rate less than 10(-4)--between IgE and low methylation at 36 loci. Genes annotated to these loci encode known eosinophil products, and also implicate phospholipid inflammatory mediators, specific transcription factors and mitochondrial proteins. We confirmed that methylation at these loci differed significantly in isolated eosinophils from subjects with and without asthma and high IgE levels. The top three loci accounted for 13% of IgE variation in the primary subject panel, explaining the tenfold higher variance found compared with that derived from large single-nucleotide polymorphism genome-wide association studies. This study identifies novel therapeutic targets and biomarkers for patient stratification for allergic diseases.
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Affiliation(s)
- Liming Liang
- Departments of Epidemiology and Biostatistics, Harvard School of Public Health, Boston, MA 02115
| | | | | | - Kenny C C Wong
- National Heart and Lung Institute, Imperial College, London SW3 6LY, UK
| | - Gwyneth A Davies
- Institute of Life Science, College of Medicine, Swansea University, SA2 8PP, UK
| | - Thomas J Hudson
- Ontario Institute for Cancer Research, Toronto, Ontario Canada, M5G 0A3
- Departments of Medical Biophysics and Molecular Genetics, University of Toronto, Canada ON M5S 1A1
| | - Aristea Binia
- National Heart and Lung Institute, Imperial College, London SW3 6LY, UK
| | - Julian M Hopkin
- Institute of Life Science, College of Medicine, Swansea University, SA2 8PP, UK
| | - Ivana V Yang
- University of Colorado School of Medicine and National Jewish Health, Denver, CO 80206
| | - Elin Grundberg
- Department of Human Genetics, McGill University and Génome Québec Innovation Centre, Montréal, Canada
| | - Stephan Busche
- Department of Human Genetics, McGill University and Génome Québec Innovation Centre, Montréal, Canada
| | - Marie Hudson
- Jewish General Hospital and Lady Davis Research Institute, Montréal, Canada H3T 1E2
| | - Lars Rönnblom
- Department of Medical Sciences, SciLifeLab, Uppsala University, Uppsala, Sweden
| | - Tomi M Pastinen
- Department of Human Genetics, McGill University and Génome Québec Innovation Centre, Montréal, Canada
- Department of Medical Genetics, McGill University Health Centre, Montréal, Canada
| | - David A Schwartz
- University of Colorado School of Medicine and National Jewish Health, Denver, CO 80206
| | - G Mark Lathrop
- Department of Human Genetics, McGill University and Génome Québec Innovation Centre, Montréal, Canada
| | - Miriam F Moffatt
- National Heart and Lung Institute, Imperial College, London SW3 6LY, UK
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137
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Eosinophils orchestrate cancer rejection by normalizing tumor vessels and enhancing infiltration of CD8(+) T cells. Nat Immunol 2015; 16:609-17. [PMID: 25915731 DOI: 10.1038/ni.3159] [Citation(s) in RCA: 342] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 03/26/2015] [Indexed: 02/07/2023]
Abstract
Tumor-associated eosinophilia is frequently observed in cancer. However, despite numerous studies of patients with cancer and mouse models of cancer, it has remained uncertain if eosinophils contribute to tumor immunity or are mere bystander cells. Here we report that activated eosinophils were essential for tumor rejection in the presence of tumor-specific CD8(+) T cells. Tumor-homing eosinophils secreted chemoattractants that guided T cells into the tumor, which resulted in tumor eradication and survival. Activated eosinophils initiated substantial changes in the tumor microenvironment, including macrophage polarization and normalization of the tumor vasculature, which are known to promote tumor rejection. Thus, our study presents a new concept for eosinophils in cancer that may lead to novel therapeutic strategies.
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138
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Shimizu S, Kouzaki H, Ogawa T, Takezawa K, Tojima I, Shimizu T. Eosinophil-epithelial cell interactions stimulate the production of MUC5AC mucin and profibrotic cytokines involved in airway tissue remodeling. Am J Rhinol Allergy 2015; 28:103-9. [PMID: 24717945 DOI: 10.2500/ajra.2014.28.4018] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Predominant eosinophil infiltration and tissue remodeling are common characteristics of chronic airway inflammation such as nasal polyposis and bronchial asthma. This study was designed to elucidate the role of eosinophils in tissue remodeling of chronic airway inflammation; eosinophil-epithelial interactions were examined by the coculture of airway epithelial cell line NCI-H292 with the eosinophilic cell line EoL-1 or with human blood eosinophils. METHODS The coculture-induced production of MUC5AC mucin, platelet-derived growth factor AB (PDGF-AB), vascular endothelial growth factor (VEGF), transforming growth factor (TGF) beta1, and interleukin-8 (IL-8) were evaluated by enzyme-linked immunosorbent assay and reverse transcription-polymerase chain reaction. RESULTS Eosinophil-epithelial interactions significantly stimulated the secretion of MUC5AC, PDGF-AB, VEGF, TGF-beta1, and IL-8 in culture supernatants. The epidermal growth factor receptor tyrosine kinase inhibitor AG1478 inhibited the coculture-induced secretion of MUC5AC, PDGF-AB, VEGF, and IL-8. Neutralizing antibodies directed against TGF-alpha or amphiregulin and pan-metalloproteinase inhibitor GM6001 inhibited the coculture-induced secretion of MUC5AC and amphiregulin from the cocultured NCI-H292 cells. Coculture of NCI-H292 cells with peripheral blood eosinophils also significantly stimulated MUC5AC production. CONCLUSION The results of this study indicate that eosinophil-epithelial cell interactions are important in the pathogenesis of tissue remodeling of eosinophil-predominant airway inflammation such as occurs in nasal polyposis and bronchial asthma.
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Affiliation(s)
- Shino Shimizu
- Department of Otorhinolaryngology, Shiga University of Medical Science, Otsu, Shiga, Japan
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139
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Toxicity of eosinophil MBP is repressed by intracellular crystallization and promoted by extracellular aggregation. Mol Cell 2015; 57:1011-1021. [PMID: 25728769 PMCID: PMC4904734 DOI: 10.1016/j.molcel.2015.01.026] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 12/29/2014] [Accepted: 01/20/2015] [Indexed: 01/07/2023]
Abstract
Eosinophils are white blood cells that function in innate immunity and participate in the pathogenesis of various inflammatory and neoplastic disorders. Their secretory granules contain four cytotoxic proteins, including the eosinophil major basic protein (MBP-1). How MBP-1 toxicity is controlled within the eosinophil itself and activated upon extracellular release is unknown. Here we show how intragranular MBP-1 nanocrystals restrain toxicity, enabling its safe storage, and characterize them with an X-ray-free electron laser. Following eosinophil activation, MBP-1 toxicity is triggered by granule acidification, followed by extracellular aggregation, which mediates the damage to pathogens and host cells. Larger non-toxic amyloid plaques are also present in tissues of eosinophilic patients in a feedback mechanism that likely limits tissue damage under pathological conditions of MBP-1 oversecretion. Our results suggest that MBP-1 aggregation is important for innate immunity and immunopathology mediated by eosinophils and clarify how its polymorphic self-association pathways regulate toxicity intra- and extracellularly.
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140
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Benito-Martin A, Di Giannatale A, Ceder S, Peinado H. The new deal: a potential role for secreted vesicles in innate immunity and tumor progression. Front Immunol 2015; 6:66. [PMID: 25759690 PMCID: PMC4338782 DOI: 10.3389/fimmu.2015.00066] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 02/02/2015] [Indexed: 12/30/2022] Open
Abstract
Tumors must evade the immune system to survive and metastasize, although the mechanisms that lead to tumor immunoediting and their evasion of immune surveillance are far from clear. The first line of defense against metastatic invasion is the innate immune system that provides immediate defense through humoral immunity and cell-mediated components, mast cells, neutrophils, macrophages, and other myeloid-derived cells that protect the organism against foreign invaders. Therefore, tumors must employ different strategies to evade such immune responses or to modulate their environment, and they must do so prior metastasizing. Exosomes and other secreted vesicles can be used for cell–cell communication during tumor progression by promoting the horizontal transfer of information. In this review, we will analyze the role of such extracellular vesicles during tumor progression, summarizing the role of secreted vesicles in the crosstalk between the tumor and the innate immune system.
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Affiliation(s)
- Alberto Benito-Martin
- Children's Cancer and Blood Foundation Laboratories, Department of Pediatrics, Weill Cornell Medical College , New York, NY , USA
| | - Angela Di Giannatale
- Children's Cancer and Blood Foundation Laboratories, Department of Pediatrics, Weill Cornell Medical College , New York, NY , USA
| | - Sophia Ceder
- Department of Oncology and Pathology, Karolinska Institutet , Stockholm , Sweden
| | - Héctor Peinado
- Children's Cancer and Blood Foundation Laboratories, Department of Pediatrics, Weill Cornell Medical College , New York, NY , USA ; Microenvironment and Metastasis Laboratory, Department of Molecular Oncology, Spanish National Cancer Research Centre (CNIO) , Madrid , Spain
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141
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Caruso RA, Branca G, Fedele F, Parisi A, Finocchiaro G, Ieni A, Rigoli L. Eosinophil-Specific Granules in Tumor Cell Cytoplasm: Unusual Ultrastructural Findings in a Case of Diffuse-Type Gastric Carcinoma. Ultrastruct Pathol 2015; 39:226-30. [PMID: 25569635 DOI: 10.3109/01913123.2014.991886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A case of desmoplastic variant of diffuse-type gastric carcinoma in a 72-year-old woman is reported. Microscopic findings included poorly cohesive tumor cells, resembling mononuclear inflammatory cells, prominent diffuse desmoplasia, and tumor-associated tissue eosinophilia. Electron microscopy confirmed the undifferentiated phenotype of tumor cells and disclosed activated eosinophils in the tumor stroma. Eosinophil-specific granules were found either free in the tumor stroma or within the cytoplasm of some tumor cells. Electron microscopy provided also circumstantial evidence of phagocytosis of apoptotic eosinophils by tumor cells. Extracellular, membrane-bound, eosinophil-specific granules have been long recognized in tissues associated with eosinophilia, including allergic diseases, inflammatory responses to helminths, and in stroma of some neoplasms. Our ultrastructural study now extends these findings and provides additional morphological evidence of eosinophil-specific granules within the cytoplasm of gastric carcinoma cells.
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142
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Landolina N, Gangwar RS, Levi-Schaffer F. Mast cells' integrated actions with eosinophils and fibroblasts in allergic inflammation: implications for therapy. Adv Immunol 2015; 125:41-85. [PMID: 25591464 DOI: 10.1016/bs.ai.2014.09.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mast cells (MCs) and eosinophils (Eos) are the key players in the development of allergic inflammation (AI). Their cross-talk, named the Allergic Effector Unit (AEU), takes place through an array of soluble mediators and ligands/receptors interactions that enhance the functions of both the cells. One of the salient features of the AEU is the CD48/2B4 receptor/ligand binding complex. Furthermore, MCs and Eos have been demonstrated to play a role not only in AI but also in the modulation of its consequence, i.e., fibrosis/tissue remodeling, by directly influencing fibroblasts (FBs), the main target cells of these processes. In turn, FBs can regulate the survival, activity, and phenotype of both MCs and Eos. Therefore, a complex three players, MCs/Eos/FBs interaction, can take place in various stages of AI. The characterization of the soluble and physical mediated cross talk among these three cells might lead to the identification of both better and novel targets for the treatment of allergy and its tissue remodeling consequences.
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Affiliation(s)
- Nadine Landolina
- Department of Pharmacology, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Roopesh Singh Gangwar
- Department of Pharmacology, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Francesca Levi-Schaffer
- Department of Pharmacology, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel.
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143
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Park CS, Lee SP. Recent advances in the classification and management of hypereosinophilia. ALLERGY ASTHMA & RESPIRATORY DISEASE 2015. [DOI: 10.4168/aard.2015.3.6.387] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Chan Sun Park
- Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Sang Pyo Lee
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
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144
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Abstract
Asthma is characterized by airway inflammation rich in eosinophils. Airway eosinophilia is associated with exacerbations and has been suggested to play a role in airway remodelling. Recruitment of eosinophils from the circulation requires that blood eosinophils become activated, leading to their arrest on the endothelium and extravasation. Circulating eosinophils can be envisioned as potentially being in different activation states, including non-activated, pre-activated or 'primed', or fully activated. In addition, the circulation can potentially be deficient of pre-activated or activated eosinophils, because such cells have marginated on activated endothelium or extravasated into the tissue. A number of eosinophil surface proteins, including CD69, L-selectin, intercellular adhesion molecule-1 (ICAM-1, CD54), CD44, P-selectin glycoprotein ligand-1 (PSGL-1, CD162), cytokine receptors, Fc receptors, integrins including αM integrin (CD11b), and activated conformations of Fc receptors and integrins, have been proposed to report cell activation. Variation in eosinophil activation states may be associated with asthma activity. Eosinophil surface proteins proposed to be activation markers, with a particular focus on integrins, and evidence for associations between activation states of blood eosinophils and features of asthma are reviewed here. Partial activation of β1 and β2 integrins on blood eosinophils, reported by monoclonal antibodies (mAbs) N29 and KIM-127, is associated with impaired pulmonary function and airway eosinophilia, respectively, in non-severe asthma. The association with lung function does not occur in severe asthma, presumably due to greater eosinophil extravasation, specifically of activated or pre-activated cells, in severe disease.
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Affiliation(s)
- M W Johansson
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, USA
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145
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Roles of 5-lipoxygenase and cysteinyl-leukotriene type 1 receptors in the hematological response to allergen challenge and its prevention by diethylcarbamazine in a murine model of asthma. Mediators Inflamm 2014; 2014:403970. [PMID: 25477712 PMCID: PMC4244945 DOI: 10.1155/2014/403970] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 10/13/2014] [Accepted: 10/15/2014] [Indexed: 02/08/2023] Open
Abstract
Diethylcarbamazine (DEC), which blocks leukotriene production, abolishes the challenge-induced increase in eosinopoiesis in bone-marrow from ovalbumin- (OVA-) sensitized mice, suggesting that 5-lipoxygenase (5-LO) products contribute to the hematological responses in experimental asthma models. We explored the relationship between 5-LO, central and peripheral eosinophilia, and effectiveness of DEC, using PAS or BALB/c mice and 5-LO-deficient mutants. We quantified eosinophil numbers in freshly harvested or cultured bone-marrow, peritoneal lavage fluid, and spleen, with or without administration of leukotriene generation inhibitors (DEC and MK886) and cisteinyl-leukotriene type I receptor antagonist (montelukast). The increase in eosinophil numbers in bone-marrow, observed in sensitized/challenged wild-type mice, was abolished by MK886 and DEC pretreatment. In ALOX mutants, by contrast, there was no increase in bone-marrow eosinophil counts, nor in eosinophil production in culture, in response to sensitization/challenge. In sensitized/challenged ALOX mice, challenge-induced migration of eosinophils to the peritoneal cavity was significantly reduced relative to the wild-type PAS controls. DEC was ineffective in ALOX mice, as expected from a mechanism of action dependent on 5-LO. In BALB/c mice, challenge significantly increased spleen eosinophil numbers and DEC treatment prevented this increase. Overall, 5-LO appears as indispensable to the systemic hematological response to allergen challenge, as well as to the effectiveness of DEC.
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146
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B lymphocytes regulate airway granulocytic inflammation and cytokine production in a murine model of fungal allergic asthma. Cell Mol Immunol 2014; 12:202-12. [PMID: 25363529 DOI: 10.1038/cmi.2014.103] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/02/2014] [Accepted: 09/17/2014] [Indexed: 12/27/2022] Open
Abstract
Sensitization to fungi often leads to a severe form of asthma that is particularly difficult to manage clinically, resulting in increased morbidity and hospitalizations in these patients. Although B lymphocytes might exacerbate asthma symptoms through the production of IgE, these cells might also be important in the protective response against inhaled fungi. Through cytokine release and T-cell interactions, these lymphocytes might also influence the development and maintenance of airway wall fibrosis. J(H)(-/-) mice lack the JH gene for the heavy chain component of antibodies, which is critical for B-cell function and survival. These animals have facilitated the elucidation of the role of B lymphocytes in a number of immune responses; however, J(H)(-/-) mice have not been used to study fungal allergy. In this study, we examined the role of B lymphocytes using an Aspergillus fumigatus murine fungal aeroallergen model that mimics human airway disease that is triggered by environmental fungal exposure. We compared disease progression in sensitized wild-type BALB/c and J(H)(-/-) mice that were exposed to repeated fungal exposure and found no differences in airway hyperresponsiveness, overall pulmonary inflammation or collagen deposition around the large airways. However, the levels of the Th2-type cytokines IL-4 and IL-13 were significantly attenuated in the airways of J(H)(-/-) mice relative to the BALB/c controls. By contrast, levels of the inflammatory cytokines IL-17A and IL-6 were significantly elevated in the J(H)(-/-) animals, and there was significantly more robust airway eosinophilia and neutrophilia than in control animals. Taken together, these findings demonstrate that B lymphocytes help to regulate granulocytic responses to fungal exposure in the pulmonary compartment.
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147
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Min A, Lee YA, Kim KA, El-Benna J, Shin MH. NOX2-derived ROS-mediated surface translocation of BLT1 is essential for exocytosis in human eosinophils induced by LTB4. Int Arch Allergy Immunol 2014; 165:40-51. [PMID: 25323785 DOI: 10.1159/000366277] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 08/01/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Leukotriene B4 (LTB4) is a proinflammatory lipid mediator that elicits eosinophil exocytosis, leading to allergic inflammation. However, the detailed intracellular signaling mechanisms of eosinophil exocytosis induced by LTB4 are poorly understood. Herein, we report that NADPH oxidase (NOX)2-derived reactive oxygen species (ROS)-mediated BLT1 migration to the cell surface is required for exocytosis in human eosinophils induced by LTB4. METHODS Peripheral blood eosinophils were purified and stimulated for up to 60 min with LTB4. The signaling role of NOX2-derived ROS in BLT1-dependent exocytosis in LTB4-stimulated eosinophils was investigated. RESULTS Stimulating eosinophils with LTB4 induced intracellular ROS production and surface upregulation of the exocytosis marker protein CD63 via BLT1-mediated signaling. LTB4 induced p47(phox) phosphorylation and 91(phox) expression required for NOX2 activation in a BLT1-dependent manner. Pretreatment with NOX2 inhibitors, but not mitochondria inhibitor, prevented LTB4-induced ROS generation and exocytosis. At 30 min after stimulation with LTB4, BLT1 expression at the cell surface was upregulated. LTB4-triggered surface upregulation of BLT1 was also blocked by inhibition of ROS generation with NOX2 inhibitors. Moreover, stimulation for 30 min with LTB4 resulted in the interaction of BLT1 with NOX2 by immunoprecipitation. LTB4-induced ROS generation, surface upregulation of BLT1 and exocytosis was also inhibited by pretreatment with a lipid raft disruptor, protein kinase C inhibitor, or Src kinase inhibitor. CONCLUSION These results suggest that NOX2-derived ROS-mediated BLT1 trafficking to the cell surface plays a key role in the exocytosis of human eosinophils induced by LTB4.
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Affiliation(s)
- Arim Min
- Department of Environmental Medical Biology, Yonsei University College of Medicine, Seoul, Republic of Korea
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148
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Kelly C, Yadav AB, Lawlor C, Nolan K, O’Dwyer J, Greene CM, McElvaney NG, Sivadas N, Ramsey JM, Cryan SA. Therapeutic Aerosol Bioengineering of siRNA for the Treatment of Inflammatory Lung Disease by TNFα Gene Silencing in Macrophages. Mol Pharm 2014; 11:4270-9. [DOI: 10.1021/mp500473d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
| | | | | | | | | | - Catherine M. Greene
- Department
of Medicine, Respiratory Research Division, RCSI Education and Research
Centre, Beaumont Hospital, Dublin 9, Ireland
| | - Noel G. McElvaney
- Department
of Medicine, Respiratory Research Division, RCSI Education and Research
Centre, Beaumont Hospital, Dublin 9, Ireland
| | | | - Joanne M. Ramsey
- Tissue Engineering
Research Group, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Sally-Ann Cryan
- Trinity
Centre for Bioengineering, Trinity College Dublin, Dublin 2, Ireland
- Tissue Engineering
Research Group, Royal College of Surgeons in Ireland, Dublin 2, Ireland
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149
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Messingham KN, Holahan HM, Frydman AS, Fullenkamp C, Srikantha R, Fairley JA. Human eosinophils express the high affinity IgE receptor, FcεRI, in bullous pemphigoid. PLoS One 2014; 9:e107725. [PMID: 25255430 PMCID: PMC4177878 DOI: 10.1371/journal.pone.0107725] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 08/17/2014] [Indexed: 01/21/2023] Open
Abstract
Bullous pemphigoid (BP) is an autoimmune blistering disease mediated by autoantibodies targeting BP180 (type XVII collagen). Patient sera and tissues typically have IgG and IgE autoantibodies and elevated eosinophil numbers. Although the pathogenicity of the IgE autoantibodies is established in BP, their contribution to the disease process is not well understood. Our aims were two-fold: 1) To establish the clinical relationships between total and BP180-specific IgE, eosinophilia and other markers of disease activity; and 2) To determine if eosinophils from BP patients express the high affinity IgE receptor, FcεRI, as a potential mechanism of action for IgE in BP. Our analysis of 48 untreated BP patients revealed a correlation between BP180 IgG and both BP180 IgE and peripheral eosinophil count. Additionally, we established a correlation between total IgE concentration and both BP180 IgE levels and eosinophil count. When only sera from patients (n = 16) with total IgE ≥ 400 IU/ml were analyzed, BP180 IgG levels correlated with disease severity, BP230 IgG, total circulating IgE and BP180 IgE. Finally, peripheral eosinophil count correlated more strongly with levels of BP180 IgE then with BP180 IgG. Next, eosinophil FcεRI expression was investigated in the blood and skin using several methods. Peripheral eosinophils from BP patients expressed mRNA for all three chains (α, β and γ) of the FcεRI. Surface expression of the FcεRIα was confirmed on both peripheral and tissue eosinophils from most BP patients by immunostaining. Furthermore, using a proximity ligation assay, interaction of the α- and β-chains of the FcεRI was observed in some biopsy specimens, suggesting tissue expression of the trimeric receptor form in some patients. These studies provide clinical support for the relevance of IgE in BP disease and provide one mechanism of action of these antibodies, via binding to the FcεRI on eosinophils.
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Affiliation(s)
- Kelly N. Messingham
- Department of Dermatology, University of Iowa, Iowa City, Iowa, United States of America
| | - Heather M. Holahan
- Department of Dermatology, University of Iowa, Iowa City, Iowa, United States of America
| | - Alexandra S. Frydman
- Department of Dermatology, University of Iowa, Iowa City, Iowa, United States of America
| | - Colleen Fullenkamp
- Department of Dermatology, University of Iowa, Iowa City, Iowa, United States of America
| | - Rupasree Srikantha
- Department of Dermatology, University of Iowa, Iowa City, Iowa, United States of America
| | - Janet A. Fairley
- Department of Dermatology, University of Iowa, Iowa City, Iowa, United States of America
- Veterans Administration Medical Center, Iowa City, Iowa, United States of America
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150
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Almada G, Haro C, Vintiñi E, Medina M. Safety of a nasal vaccine against Streptococcus pneumoniae using heat-killed Lactobacillus casei as adjuvant. Immunobiology 2014; 220:109-16. [PMID: 25240632 DOI: 10.1016/j.imbio.2014.08.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 08/11/2014] [Indexed: 01/25/2023]
Abstract
Streptococcus pneumoniae is a highly important respiratory pathogen that causes infections in children, elderly people and immunocompromised people around the world. Pneumococcal vaccines licensed did not reach to eradicate the pneumococcal infection. In a previous study was demonstrated the effectiveness of a nasal experimental vaccine that consisted in a pneumococcal protective protein A (PppA) co-administrated with heat-killed-Lactobacillus casei (LcM), in mice model of respiratory pneumococcal challenge. In the present work the safety of the experimental vaccine LcM+PppA and its components were evaluated through hematological, biochemical and immune parameters in a model infection with S. pneumoniae. Thus, alanine transaminase activity, creatinine levels, lactate dehydrogenase activity, C reactive protein levels, corticosterone levels in serum, total and differential leukocyte counts in blood and bronchoalveolar lavages (BAL) and IgE in BAL, were evaluated. Experimental vaccine: LcM+PppA nasally administered does not induce harmful effects in our vaccination-infection model. Studied parameters showed LcM+PppA's safety in liver, kidney, pulmonary and systemic levels. Although studies in experimental animals do not guarantee security for the application of the vaccine on humans, they are important evidence for the planning and subsequent clinical trials in humans.
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Affiliation(s)
- Guillermina Almada
- Instituto de Bioquímica Aplicada, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán-CONICET, Balcarce 747, CP 4000 San Miguel de Tucumán, Tucumán, Argentina.
| | - Cecilia Haro
- Instituto de Bioquímica Aplicada, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán-CONICET, Balcarce 747, CP 4000 San Miguel de Tucumán, Tucumán, Argentina.
| | - Elisa Vintiñi
- LARIVENOA,Facultad de Agronomía y Zootecnia. Universidad Nacional de Tucumán. Florentino Ameghino S/N. CP: 4105, San Miguel de Tucumán, Tucumán, Argentina.
| | - Marcela Medina
- Instituto de Microbiología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán-CONICET, Ayacucho 471, CP 4000 San Miguel de Tucumán, Tucumán, Argentina.
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