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Zhang X, Chen X, Yang F, Shao H, Bai T, Meng X, Wu Y, Yang A, Chen H, Li X. Extracellular adenosine triphosphate skews the T helper cell balance and enhances neutrophil activation in mice with food allergies. Food Funct 2024; 15:5641-5654. [PMID: 38726659 DOI: 10.1039/d4fo01135j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
Exposure to food allergens elicits fast changes in the intestinal microenvironment, which guides the development of allergic reactions. Investigating the key information about these changes may help in better understanding food allergies. In this research, we explored the relationship between a food allergy and extracellular adenosine triphosphate (ATP), a danger molecule that has been proved to regulate the onset of allergic asthma and dermatitis but has not been studied in food allergies, by developing a unique animal model through allergen-containing diet feeding. After consuming an allergen-containing diet for 7 days, the allergic mice exhibited severe enteritis with elevated luminal ATP levels. The dysregulated luminal ATP worsened food-induced enteritis by enhancing Th17 cell responses and increasing mucosal neutrophil accumulation. In vitro experiments demonstrated that ATP intervention facilitated Th17 cell differentiation and neutrophil activation. In addition, the diet-induced allergy showed noticeable gut dysbiosis, characterized by decreased microbial diversity and increased diet-specific microbiota signatures. As the first, we show that food-induced enteritis is associated with an elevated concentration of luminal ATP. The dysregulated extracellular ATP exacerbated the enteritis of mice to a food challenge by manipulating intestinal Th17 cells and neutrophils.
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Affiliation(s)
- Xing Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
- School of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
| | - Xiao Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
- School of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
| | - Fan Yang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
- School of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
| | - Huming Shao
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
- School of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
| | - Tianliang Bai
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
- School of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
| | - Xuanyi Meng
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Yong Wu
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Anshu Yang
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Hongbing Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
- School of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Xin Li
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
- School of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
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2
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Ding H, Yao B, Ci L, Feng J, Ouyang P, Chen G, Hui X, Zhou D. Enhancing the Anti-tumor Potency of a Novel Siglec-15 Antibody by Engineering its Fc-mediated Effector Functions. J Immunother 2023; 46:161-169. [PMID: 37103472 PMCID: PMC10168116 DOI: 10.1097/cji.0000000000000465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/22/2023] [Indexed: 04/28/2023]
Abstract
Siglec-15, an inhibitory immune checkpoint, is an emerging target in cancer immunotherapy. Blocking the function of Siglec-15 is an excellent strategy for cancer treatment and antibody blockade has been used to target Siglec-15. However, whether Fc-mediated effector functions contribute to the therapeutic effect of antibodies remains unclear. Herein, we generated a monoclonal antibody, 1-15D1, which had a high binding affinity with Siglec-15 and strongly activated T-cell immune response in vitro. Subsequently, the Fc-mediated effector functions of 1-15D1 were explored in a Siglec-15 humanized mouse model, and further improvement in antitumor efficacy was observed in the mouse IgG2a isotype group. Thus, we demonstrate that the antitumor effects of 1-15D1 were mediated via multiple factors. In addition to the T-cell immune response, 2 novel mechanisms were explored, including the internalization of the cell surface Siglec-15 and Fc-mediated effector functions. In conclusion, our studies not only provide a potential agent for the improvement of cancer immunotherapy but also suggest that a specific role of Fc-mediated immune regulation may improve the therapeutic potency of Siglec-15 monoclonal antibody.
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Affiliation(s)
- Huandi Ding
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing
- CSPC Megalith Biopharmaceutical Co. Ltd, Shijiazhuang
| | - Bing Yao
- CSPC Megalith Biopharmaceutical Co. Ltd, Shijiazhuang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing
| | - Lei Ci
- Shanghai Engineering Research Center for Model Organisms, SMOC, Shanghai, China
| | - Jing Feng
- CSPC Megalith Biopharmaceutical Co. Ltd, Shijiazhuang
| | - Pingkai Ouyang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing
| | - Guoguang Chen
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing
| | - Xiwu Hui
- CSPC Megalith Biopharmaceutical Co. Ltd, Shijiazhuang
| | - Demin Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing
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Kyuuma M, Kaku A, Mishima-Tsumagari C, Ogawa B, Endo M, Tamura Y, Ishikura KI, Mima M, Nakanishi Y, Fujii Y. Unique structure of ozoralizumab, a trivalent anti-TNFα NANOBODY ® compound, offers the potential advantage of mitigating the risk of immune complex-induced inflammation. Front Immunol 2023; 14:1149874. [PMID: 37122706 PMCID: PMC10141648 DOI: 10.3389/fimmu.2023.1149874] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/24/2023] [Indexed: 05/02/2023] Open
Abstract
Biologics have become an important component of treatment strategies for a variety of diseases, but the immunogenicity of large immune complexes (ICs) and aggregates of biologics may increase risk of adverse events is a concern for biologics and it remains unclear whether large ICs consisting of intrinsic antigen and therapeutic antibodies are actually involved in acute local inflammation such as injection site reaction (ISR). Ozoralizumab is a trivalent, bispecific NANOBODY® compound that differs structurally from IgGs. Treatment with ozoralizumab has been shown to provide beneficial effects in the treatment of rheumatoid arthritis (RA) comparable to those obtained with other TNFα inhibitors. Very few ISRs (2%) have been reported after ozoralizumab administration, and the drug has been shown to have acceptable safety and tolerability. In this study, in order to elucidate the mechanism underlying the reduced incidence of ISRs associated with ozoralizumab administration, we investigated the stoichiometry of two TNFα inhibitors (ozoralizumab and adalimumab, an anti-TNFα IgG) ICs and the induction by these drugs of Fcγ receptor (FcγR)-mediated immune responses on neutrophils. Ozoralizumab-TNFα ICs are smaller than adalimumab-TNFα ICs and lack an Fc portion, thus mitigating FcγR-mediated immune responses on neutrophils. We also developed a model of anti-TNFα antibody-TNFα IC-induced subcutaneous inflammation and found that ozoralizumab-TNFα ICs do not induce any significant inflammation at injection sites. The results of our studies suggest that ozoralizumab is a promising candidate for the treatment of RA that entails a lower risk of the IC-mediated immune cell activation that leads to unwanted immune responses.
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Rijavec M, Maver A, Turner PJ, Hočevar K, Košnik M, Yamani A, Hogan S, Custovic A, Peterlin B, Korošec P. Integrative transcriptomic analysis in human and mouse model of anaphylaxis identifies gene signatures associated with cell movement, migration and neuroinflammatory signalling. Front Immunol 2022; 13:1016165. [PMID: 36569939 PMCID: PMC9772259 DOI: 10.3389/fimmu.2022.1016165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 11/10/2022] [Indexed: 12/12/2022] Open
Abstract
Background Anaphylaxis is an acute life-threatening allergic reaction and a concern at a global level; therefore, further progress in understanding the underlying mechanisms and more effective strategies for diagnosis, prevention and management are needed. Objective We sought to identify the global architecture of blood transcriptomic features of anaphylaxis by integrating expression data from human patients and mouse model of anaphylaxis. Methods Bulk RNA-sequencings of peripheral whole blood were performed in: i) 14 emergency department (ED) patients with acute anaphylaxis, predominantly to Hymenoptera venom, ii) 11 patients with peanut allergy undergoing double-blind, placebo-controlled food challenge (DBPCFC) to peanut, iii) murine model of IgE-mediated anaphylaxis. Integrative characterisation of differential gene expression, immune cell-type-specific gene expression profiles, and functional and pathway analysis was undertaken. Results 1023 genes were commonly and significantly dysregulated during anaphylaxis in ED and DBPCFC patients; of those genes, 29 were also dysregulated in the mouse model. Cell-type-specific gene expression profiles showed a rapid downregulation of blood basophil and upregulation of neutrophil signature in ED and DBPCFC patients and the mouse model, but no consistent and/or significant differences were found for other blood cells. Functional and pathway analysis demonstrated that human and mouse blood transcriptomic signatures of anaphylaxis follow trajectories of upregulation of cell movement, migration and neuroinflammatory signalling, and downregulation of lipid activating nuclear receptors signalling. Conclusion Our study highlights the matched and extensive blood transcriptomic changes and suggests the involvement of discrete cellular components and upregulation of migration and neuroinflammatory pathways during anaphylaxis.
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Affiliation(s)
- Matija Rijavec
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Aleš Maver
- Clinical Institute of Medical Genetics, University Medical Centre, Ljubljana, Slovenia
| | - Paul J. Turner
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Keli Hočevar
- Clinical Institute of Medical Genetics, University Medical Centre, Ljubljana, Slovenia
| | - Mitja Košnik
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia
- Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Amnah Yamani
- Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, MI, United States
- Mary H. Weiser Food Allergy Center (MHWFAC), Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Simon P. Hogan
- Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, MI, United States
- Mary H. Weiser Food Allergy Center (MHWFAC), Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Adnan Custovic
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Borut Peterlin
- Clinical Institute of Medical Genetics, University Medical Centre, Ljubljana, Slovenia
| | - Peter Korošec
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
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5
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Nuñez-Borque E, Fernandez-Bravo S, Yuste-Montalvo A, Esteban V. Pathophysiological, Cellular, and Molecular Events of the Vascular System in Anaphylaxis. Front Immunol 2022; 13:836222. [PMID: 35371072 PMCID: PMC8965328 DOI: 10.3389/fimmu.2022.836222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/07/2022] [Indexed: 01/10/2023] Open
Abstract
Anaphylaxis is a systemic hypersensitivity reaction that can be life threatening. Mechanistically, it results from the immune activation and release of a variety of mediators that give rise to the signs and symptoms of this pathological event. For years, most of the research in anaphylaxis has focused on the contribution of the immune component. However, approaches that shed light on the participation of other cellular and molecular agents are necessary. Among them, the vascular niche receives the various signals (e.g., histamine) that elicit the range of anaphylactic events. Cardiovascular manifestations such as increased vascular permeability, vasodilation, hypotension, vasoconstriction, and cardiac alterations are crucial in the pathophysiology of anaphylaxis and are highly involved to the development of the most severe cases. Specifically, the endothelium, vascular smooth muscle cells, and their molecular signaling outcomes play an essential role downstream of the immune reaction. Therefore, in this review, we synthesized the vascular changes observed during anaphylaxis as well as its cellular and molecular components. As the risk of anaphylaxis exists both in clinical procedures and in routine life, increasing our knowledge of the vascular physiology and their molecular mechanism will enable us to improve the clinical management and how to treat or prevent anaphylaxis. Key Message Anaphylaxis, the most severe allergic reaction, involves a variety of immune and non-immune molecular signals that give rise to its pathophysiological manifestations. Importantly, the vascular system is engaged in processes relevant to anaphylactic events such as increased vascular permeability, vasodilation, hypotension, vasoconstriction, and decreased cardiac output. The novelty of this review focuses on the fact that new studies will greatly improve the understanding of anaphylaxis when viewed from a vascular molecular angle and specifically from the endothelium. This knowledge will improve therapeutic options to treat or prevent anaphylaxis.
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Affiliation(s)
- Emilio Nuñez-Borque
- Department of Allergy and Immunology, Instituto en Investigación Sanitaria - Fundación Jiménez Díaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Sergio Fernandez-Bravo
- Department of Allergy and Immunology, Instituto en Investigación Sanitaria - Fundación Jiménez Díaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Alma Yuste-Montalvo
- Department of Allergy and Immunology, Instituto en Investigación Sanitaria - Fundación Jiménez Díaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Vanesa Esteban
- Department of Allergy and Immunology, Instituto en Investigación Sanitaria - Fundación Jiménez Díaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain.,Faculty of Medicine and Biomedicine, Alfonso X El Sabio University, Madrid, Spain
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6
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Abstract
Purpose of Review The purpose of this review is to provide a better understanding of anaphylaxis pathophysiology and describe the underlying mechanisms, effector cells, and the potential biomarkers involved depending on the anaphylaxis endotypes. Recent Findings New insight into the potential relevance of pathways others than IgE-dependent anaphylaxis has been unraveled, as well as other biomarkers than tryptase, such as the role of platelet activation factor, basogranulin, dipeptidyl peptidase I, CCL-2, and other cytokines. Summary Gaining knowledge of all the mediators and cellular activation/communication pathways involved in each endotype of anaphylaxis will allow the application of precision medicine in patients with anaphylactic reactions, providing insights to the most appropriate approach in each case and helping to stratify severity and risk prediction.
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7
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Fontes JLM, Mesquita BR, Brito R, Gomes JCS, de Melo CVB, dos Santos WLC. Anti- Leishmania infantum Antibody-Producing Plasma Cells in the Spleen in Canine Visceral Leishmaniasis. Pathogens 2021; 10:pathogens10121635. [PMID: 34959592 PMCID: PMC8706995 DOI: 10.3390/pathogens10121635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/19/2021] [Accepted: 12/01/2021] [Indexed: 12/05/2022] Open
Abstract
The spleen is involved in visceral leishmaniasis immunopathogenesis, and presents alterations in white-pulp microenvironments that are associated with an increased susceptibility to coinfections and patient death. Plasmacytosis in splenic red pulp (RP) is one observed alteration, but the specificity of antibody-secreting cells and the distribution of them has not yet been evaluated. We biotinylated soluble L. infantum membrane antigens (bSLMA) used as probes in modified immunohistochemistry, and detected the presence of anti-L. infantum antibody-secreting cells. Were used spleens from eight dogs from the endemic area for canine visceral leishmaniasis (CanL), and three healthier controls. The spleen sections were cryopreserved, and we performed modified immunohistochemistry. The ratio of plasma cells which were reactive to bSLMA (Anti-Leish-PC) in the spleen RP and periarteriolar lymphatic sheath (PALS) were calculated. Dogs with CanL present hyperglobulinemia and more plasma cells in their RP than the controls. Furthermore, dogs with CanL presented a lower proportion of Anti-Leish-PC in their RP than in PALS. Likewise, dysproteinemia was related to RP and PALS plasmacytosis, and a more severe clinical profile.
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8
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Giannetti MP, Akin C, Castells M. Idiopathic Anaphylaxis: A Form of Mast Cell Activation Syndrome. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 8:1196-1201. [PMID: 32276688 DOI: 10.1016/j.jaip.2019.10.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/22/2019] [Accepted: 10/29/2019] [Indexed: 12/18/2022]
Abstract
Idiopathic anaphylaxis is a condition caused by paroxysmal episodes of sudden-onset multiorgan involvement variably including laryngeal edema, urticaria, bronchoconstriction, dyspnea, hypoxia, abdominal pain, nausea, vomiting, diarrhea, and hypotension. Rarely, the episodes can lead to cardiovascular collapse and death in the absence of a clear trigger, especially in the presence of other cardiovascular comorbidities. Elevated mast cell mediators such as tryptase and histamine have been reported during episodes, and mast cells are considered the primary cells responsible for driving anaphylaxis in humans. Basophils also secrete histamine and LTC4 when activated and theoretically can contribute to symptoms. As our understanding of mast cell disorders continue to grow, the classification for these disorders evolves. The purpose of this article was 2-fold: to review the epidemiology, clinical manifestations, and diagnosis of idiopathic anaphylaxis and to discuss the classification of idiopathic anaphylaxis within the broader context of mast cell activation disorders.
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Affiliation(s)
- Matthew P Giannetti
- Brigham and Women's Hospital, Division of Allergy and Clinical Immunology, Boston, Mass; Harvard Medical School, Boston, Mass.
| | - Cem Akin
- Division of Allergy and Immunology, University of Michigan, Ann Arbor, Mich
| | - Mariana Castells
- Brigham and Women's Hospital, Division of Allergy and Clinical Immunology, Boston, Mass; Harvard Medical School, Boston, Mass
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Abstract
PURPOSE OF REVIEW The aim of this systematic review is to present the proposed theories of pathogenesis for idiopathic anaphylaxis (IA), to discuss its classification, its diagnostic approach, and management. RECENT FINDINGS IA represents a major diagnostic challenge and is diagnosed when excluding the possible identifiable triggers of anaphylaxis. The current research, however, revealed that certain conditions including mastocytosis, mast cell activation syndromes, and hereditary alpha tryptasemia can masquerade and overlap with its symptomatology. Also, newly identified galactose-alpha-1,3-galactose mammalian red meat allergy has recently been recognized as underlying cause of anaphylaxis in some cases that were previously considered as IA. IA comprises a heterogenous group of conditions where, in some cases, inherently dysfunctional mast cells play a role in pathogenesis. The standard trigger avoidance strategies are ineffective, and episodes are unpredictable. Therefore, prompt recognition and treatment as well as prophylaxis are critical. The patients should always carry an epinephrine autoinjector.
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Affiliation(s)
- Theo Gulen
- Department of Respiratory Medicine and Allergy, K85, Karolinska University Hospital, Huddinge, SE-141 86, Stockholm, Sweden.
- Immunology and Allergy Unit, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
- Mastocytosis Center Karolinska, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
| | - Cem Akin
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI, USA
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10
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Vantur R, Rihar M, Koren A, Rijavec M, Kopac P, Bidovec-Stojkovic U, Erzen R, Korosec P. Chemokines during anaphylaxis: the importance of CCL2 and CCL2-dependent chemotactic activity for basophils. Clin Transl Allergy 2020; 10:63. [PMID: 33317619 PMCID: PMC7737350 DOI: 10.1186/s13601-020-00367-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 11/26/2020] [Indexed: 12/23/2022] Open
Abstract
Background The role of chemokines in anaphylaxis is unclear. Methods We prospectively recruited 49 patients presenting to the emergency department with an acute episode of anaphylaxis and 28 healthy subjects. We measured serum levels of the chemokines CCL2, CCL5, CCL7, CCL8, CCL11, CCL13, CCL17, CCL21, CCL22, CCL24, and CCL26, tryptase, the absolute number of circulating basophils, monocytes, lymphocytes, and PMNs, and whole blood FCER1A, CPA3 and HDC gene expression at two time points: during the anaphylactic episode and in convalescent samples collected approximately 3 months later. We then investigated the in vitro chemotactic activity of chemokines induced during anaphylaxis for the in vitro migration of the corresponding cells. Results Only CCL2 chemokine levels were significantly increased in anaphylaxis samples (median 514 pg/ml) compared to convalescent samples (284 pg/ml, P < 0.0001) and healthy subjects (279 pg/ml, P < 0.0001); there was no significant difference in any of the other chemokines. There was a significant positive correlation between the rates of increase of serum CCL2 (median [range]: 106.0% [− 44.7% to 557.4%]) and tryptase (133.8% [− 6.6% to 893.4%]; r = 0.68, P < 0.0001) and between the acute concentration of serum CCL2 and the acute concentration of serum tryptase (r = 0.77, P < 0.0001). The number of circulating basophils, but not other blood cells, significantly decreased during anaphylaxis (median 5.0 vs. 19.1 cells/µl in convalescent samples; P < 0.0001); a decrease in whole-blood gene expression of basophil markers (P ≤ 0.0018) confirmed these changes. Anaphylactic serum enhances the in vitro migration of basophils via CCL2-dependent chemotactic activity; in contrast, no CCL2-dependent chemotactic activity was observed for convalescent samples. Conclusions Our findings imply an important and specific role for CCL2-mediated chemotactic activity in the pathophysiology of human anaphylaxis.
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Affiliation(s)
- Romana Vantur
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik 36, 4204, Golnik, Slovenia
| | - Marusa Rihar
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik 36, 4204, Golnik, Slovenia
| | - Ana Koren
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik 36, 4204, Golnik, Slovenia
| | - Matija Rijavec
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik 36, 4204, Golnik, Slovenia.,Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Peter Kopac
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik 36, 4204, Golnik, Slovenia.,Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Urska Bidovec-Stojkovic
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik 36, 4204, Golnik, Slovenia
| | - Renato Erzen
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik 36, 4204, Golnik, Slovenia.,Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Peter Korosec
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik 36, 4204, Golnik, Slovenia.
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11
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Balbino B, Herviou P, Godon O, Stackowicz J, Goff ORL, Iannascoli B, Sterlin D, Brûlé S, Millot GA, Harris FM, Voronina VA, Nadeau KC, Macdonald LE, Murphy AJ, Bruhns P, Reber LL. The anti-IgE mAb omalizumab induces adverse reactions by engaging Fcγ receptors. J Clin Invest 2020; 130:1330-1335. [PMID: 31770111 DOI: 10.1172/jci129697] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 11/13/2019] [Indexed: 01/07/2023] Open
Abstract
Omalizumab is an anti-IgE monoclonal antibody (mAb) approved for the treatment of severe asthma and chronic spontaneous urticaria. Use of omalizumab is associated with reported side effects ranging from local skin inflammation at the injection site to systemic anaphylaxis. To date, the mechanisms through which omalizumab induces adverse reactions are still unknown. Here, we demonstrated that immune complexes formed between omalizumab and IgE can induce both skin inflammation and anaphylaxis through engagement of IgG receptors (FcγRs) in FcγR-humanized mice. We further developed an Fc-engineered mutant version of omalizumab, and demonstrated that this mAb is equally potent as omalizumab at blocking IgE-mediated allergic reactions, but does not induce FcγR-dependent adverse reactions. Overall, our data indicate that omalizumab can induce skin inflammation and anaphylaxis by engaging FcγRs, and demonstrate that Fc-engineered versions of the mAb could be used to reduce such adverse reactions.
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Affiliation(s)
- Bianca Balbino
- Unit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 INSERM, Paris, France.,Sorbonne Université, Paris, France
| | - Pauline Herviou
- Unit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 INSERM, Paris, France
| | - Ophélie Godon
- Unit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 INSERM, Paris, France
| | - Julien Stackowicz
- Unit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 INSERM, Paris, France.,Sorbonne Université, Paris, France
| | - Odile Richard-Le Goff
- Unit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 INSERM, Paris, France
| | - Bruno Iannascoli
- Unit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 INSERM, Paris, France
| | - Delphine Sterlin
- Unit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 INSERM, Paris, France.,Assistance Publique-Hôpitaux de Paris, La Pitié-Salpêtrière, Département d'Immunologie, Paris, France
| | - Sébastien Brûlé
- Plateforme de Biophysique Moléculaire, Institut Pasteur, UMR 3528 CNRS, Paris, France
| | - Gael A Millot
- Hub de Bioinformatique et Biostatistique, Département Biologie Computationnelle, Institut Pasteur, USR 3756 CNRS, Paris, France
| | - Faith M Harris
- Regeneron Pharmaceuticals Inc., Tarrytown, New York, USA
| | | | - Kari C Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA.,Division of Pulmonary and Critical Care, Department of Medicine, Stanford University, California, USA
| | | | | | - Pierre Bruhns
- Unit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 INSERM, Paris, France
| | - Laurent L Reber
- Unit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 INSERM, Paris, France.,Center for Physiopathology of Toulouse-Purpan (CPTP), UMR 1043, University of Toulouse, INSERM CNRS, Toulouse France
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12
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Huot S, Laflamme C, Fortin PR, Boilard E, Pouliot M. IgG-aggregates rapidly upregulate FcgRI expression at the surface of human neutrophils in a FcgRII-dependent fashion: A crucial role for FcgRI in the generation of reactive oxygen species. FASEB J 2020; 34:15208-15221. [PMID: 32946139 DOI: 10.1096/fj.202001085r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/26/2020] [Accepted: 09/02/2020] [Indexed: 01/17/2023]
Abstract
Autoimmune complexes are an important feature of several autoimmune diseases such as lupus, as they contribute to tissue damage through the activation of immune cells. Neutrophils, key players in lupus, interact with immune complexes through Fc gamma receptors (FcgR). Incubation of neutrophils with aggregated-IgGs caused degranulation and increased the surface expression of FcgRI within minutes in a concentration-dependent fashion. After 30 minutes, IgG aggregates (1 mg/mL) upregulated FcgRI by 4.95 ± 0.45-fold. FcgRI-positive neutrophils reached 67.24% ± 6.88% on HA-IgGs stimulated neutrophils, from 3.12% ± 1.62% in non-stimulated cells, ranking IgG-aggregates among the most potent known agonists. FcgRIIa, and possibly FcgRIIIa, appeared to mediate this upregulation. Also, FcgRI-dependent signaling proved necessary for reactive oxygen species (ROS) production in response to IgG-aggregates. Finally, combinations of bacterial materials with aggregates dramatically boosted ROS production. This work suggests FcgRI as an essential component in the response of human neutrophils to immune complexes leading to the production of ROS, which may help explain how neutrophils contribute to tissue damage associated with immune complex-associated diseases, such as lupus.
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Affiliation(s)
- Sandrine Huot
- Département de microbiologie et immunologie, Faculté de Médecine de l'Université Laval, Centre de Recherche du CHU de Québec-Université Laval, Québec City, QC, Canada.,Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec-Université Laval, Québec City, QC, Canada
| | - Cynthia Laflamme
- Département de microbiologie et immunologie, Faculté de Médecine de l'Université Laval, Centre de Recherche du CHU de Québec-Université Laval, Québec City, QC, Canada.,Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec-Université Laval, Québec City, QC, Canada
| | - Paul R Fortin
- Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec-Université Laval, Québec City, QC, Canada.,Division de Rhumatologie, Département de Médecine, CHU de Québec-Université Laval, Québec City, QC, Canada
| | - Eric Boilard
- Département de microbiologie et immunologie, Faculté de Médecine de l'Université Laval, Centre de Recherche du CHU de Québec-Université Laval, Québec City, QC, Canada.,Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec-Université Laval, Québec City, QC, Canada
| | - Marc Pouliot
- Département de microbiologie et immunologie, Faculté de Médecine de l'Université Laval, Centre de Recherche du CHU de Québec-Université Laval, Québec City, QC, Canada.,Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec-Université Laval, Québec City, QC, Canada
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13
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de Oliveira Carvalho H, Gonçalves DES, Picanço KRT, de Lima Teixeira Dos Santos AVT, Lucia M, Hu X, Fernandes CP, Ferreira IM, Carvalho JCT. Actions of Cannabis sativa L. fixed oil and nano-emulsion on venom-induced inflammation of Bothrops moojeni snake in rats. Inflammopharmacology 2020; 29:123-135. [PMID: 32924074 DOI: 10.1007/s10787-020-00754-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/30/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Bothrops moojeni snake venom (VBm) has toxins that cause pronounced tissue damage and exacerbated inflammatory reaction. Cannabis sativa L. is a plant species that produces an oil (CSO) rich in unsaturated fatty acids. Nano-emulsions have several advantages, such as better stability and higher penetrating power in membranes. Therefore, this study evaluated the effect of a nano-emulsion based on this herbal derivative (NCS) against VBm-induced inflammation in Wistar rats. METHODS The CSO and NCS were submitted to physicochemical characterization. The inflammatory process was induced by the VBm (0.10 mg/kg) as follows: rat paw edema, peritonitis, analysis of leukocyte infiltrate in gastrocnemius muscle of rats and formation of granulomatous tissue. RESULTS No significant changes were observed when the NCS was submitted to the centrifugation and thermal stress tests. There was no phase separation, changes in density (0.978 ± 0.01 g/cm3) and viscosity (0.889 ± 0.15). The droplet diameter ranged from 119.7 ± 065 to 129.3 ± 0.15 nm and the polydispersity index ranged from 0.22 ± 0.008 to 0.23 ± 0.011. The results showed that treatments with CSO (200 and 400 mg/kg) and NCS (100 mg/kg) were able to decrease significantly (p < 0.001) the formation of edema and granulomatous tissue. The CSO and NCS groups significantly attenuated (p < 0.001) the recruitment of inflammatory cells in the tests for peritonitis and leukocyte infiltrate. The histopathological analysis of the gastrocnemius muscle showed a reduction in tissue damage caused by VBm. CONCLUSION The results obtained in this study showed anti-inflammatory activity of the CSO which may be due to a high UFA content. The nanosizing, as evidenced by the incorporation of the CSO in the NCS improved the effect and opens the perspective for the obtainment of a nanomedicine in which a kinetic stable phytotherapic can be used at low doses.
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Affiliation(s)
- Helison de Oliveira Carvalho
- Laboratório de Pesquisa em Fármacos, Curso de Farmácia, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Juscelino Kubitsheck, km 02, Macapá, Amapá, 68903-419, Brazil
- Programa de Pós-graduação em Inovação Farmacêutica, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Macapá, Brazil
| | - Danna Emanuelle Santos Gonçalves
- Laboratório de Pesquisa em Fármacos, Curso de Farmácia, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Juscelino Kubitsheck, km 02, Macapá, Amapá, 68903-419, Brazil
| | - Karyny Roberta Tavares Picanço
- Laboratório de Pesquisa em Fármacos, Curso de Farmácia, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Juscelino Kubitsheck, km 02, Macapá, Amapá, 68903-419, Brazil
| | - Abrahão Victor Tavares de Lima Teixeira Dos Santos
- Laboratório de Pesquisa em Fármacos, Curso de Farmácia, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Juscelino Kubitsheck, km 02, Macapá, Amapá, 68903-419, Brazil
| | - Maria Lucia
- Serpentário do Departamento de Ciências Biológicas da Universidade José do Rosário Vellano - UNIFENAS, Alfenas, Minas Gerais, Brasil
| | - Xuebo Hu
- Laboratory of Drug Discovery and Molecular Engineering, College of Plant Science and Technology, Huazhong Agricultural University, 1 Shizishan, Nanhu, Wuhan, 430070, China
| | - Caio Pinho Fernandes
- Laboratório de Pesquisa em Fármacos, Curso de Farmácia, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Juscelino Kubitsheck, km 02, Macapá, Amapá, 68903-419, Brazil
- Programa de Pós-graduação em Inovação Farmacêutica, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Macapá, Brazil
- Laboratório de Nanobiotecnologia Fitofarmacêutica, Curso de Farmácia, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Juscelino Kubitsheck, km 02, Macapá, Amapá, 68902-280, Brazil
| | - Irlon Maciel Ferreira
- Programa de Pós-graduação em Inovação Farmacêutica, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Macapá, Brazil
- Laboratório de Biocatálise e Biotransformação em Química Orgânica, Curso de Química, Universidade Federal do Amapá, Macapá, Brazil
| | - José Carlos Tavares Carvalho
- Laboratório de Pesquisa em Fármacos, Curso de Farmácia, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Juscelino Kubitsheck, km 02, Macapá, Amapá, 68903-419, Brazil.
- Programa de Pós-graduação em Inovação Farmacêutica, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Macapá, Brazil.
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14
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Jiaxin S, Shengchen W, Yirong C, Shuting W, Shu L. Cadmium exposure induces apoptosis, inflammation and immunosuppression through CYPs activation and antioxidant dysfunction in common carp neutrophils. FISH & SHELLFISH IMMUNOLOGY 2020; 99:284-290. [PMID: 32058096 DOI: 10.1016/j.fsi.2020.02.015] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/02/2020] [Accepted: 02/08/2020] [Indexed: 06/10/2023]
Abstract
Cadmium (Cd) is a bioaccumulative toxic heavy metal element that has been shown to cause irreversible damage to the immune system once contaminated with water, thereby jeopardizing the health of fish and other aquatic organisms. Neutrophils react against multiple invading pathogens through different mechanisms. The effect of Cd immunotoxicity in carp neutrophils has not been thoroughly studied. Here, common carp peripheral blood neutrophils were exposed to 10 μmol/L Cd for 2 h or then stimulated with 20 nmol/L PMA under laboratory conditions to study the effect and potential mechanism of Cd on neutrophils. The results showed that Cd induced mRNA expression of Cytochrome P450s (CYPs) enzymes including CYP1A1, CYP1B1, CYP1C and CYP3A138, increased reactive oxygen species (ROS) levels, and enhanced the expression of antioxidant genes. In addition, Cd activated cysteinyl aspartate specific proteinases (caspase-3) and induced apoptosis by altering the expression of major genes including mitochondrial pathway factors such as B-cell lymphoma-2 (Bcl-2), pro-apoptosis factors Bcl-2-Associated X (BAX), and caspase-9 and death receptor pathways such as Fas/Fas ligand (Fas/FasL), tumour necrosis factor alpha/tumor necrosis factor receptor 1 (TNF-α/TNFR1) and caspase-8. Meanwhile, we found that the accumulation of ROS caused not only oxidative stress but also high expression levels of related inflammatory factors to mediate the immune response including interleukin (IL-6, IL-10, IL-11b, IL-1β) and interferon (IFNg1, IFNph1). Furthermore, Cd also inhibited phorbol myristate acetate (PMA)-induced release of neutrophil extracellular traps (NETs) and respiratory burst. This information will be helpful for the elucidation of how Cd impacts the neutrophils of carp. The associated risk assessment is valuable for effective aquatic environmental management.
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Affiliation(s)
- Sun Jiaxin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Wang Shengchen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Cao Yirong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Wang Shuting
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Li Shu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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15
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Granger V, Peyneau M, Chollet-Martin S, de Chaisemartin L. Neutrophil Extracellular Traps in Autoimmunity and Allergy: Immune Complexes at Work. Front Immunol 2019; 10:2824. [PMID: 31849989 PMCID: PMC6901596 DOI: 10.3389/fimmu.2019.02824] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/15/2019] [Indexed: 12/17/2022] Open
Abstract
Neutrophil extracellular traps (NETs) have been initially described as main actors in host defense owing to their ability to immobilize and sometimes kill microorganisms. Subsequent studies have demonstrated their implication in the pathophysiology of various diseases, due to the toxic effects of their main components on surrounding tissues. Several distinct NETosis pathways have been described in response to various triggers. Among these triggers, IgG immune complexes (IC) play an important role since they induce robust NET release upon binding to activating FcγRs on neutrophils. Few in vitro studies have documented the mechanisms of IC-induced NET release and evidence about the partners involved is controversial. In vivo, animal models and clinical studies have strongly suggested the importance of IgG IC-induced NET release for autoimmunity and anaphylaxis. In this review, we will focus on two autoimmune diseases in which NETs are undoubtedly major players, systemic lupus erythematosus (SLE), and rheumatoid arthritis (RA). We will also discuss anaphylaxis as another example of disease recently associated with IC-induced NET release. Understanding the role of IC-induced NETs in these settings will pave the way for new diagnostic tools and therapeutic strategies.
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Affiliation(s)
- Vanessa Granger
- Département d'Immunologie et d'Hématologie, UF Auto-immunité et Hypersensibilités, HUPNVS, Hôpital Bichat, Paris, France.,Inflammation Chimiokines et Immunopathologie, INSERM UMR996, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
| | - Marine Peyneau
- Département d'Immunologie et d'Hématologie, UF Auto-immunité et Hypersensibilités, HUPNVS, Hôpital Bichat, Paris, France.,Inflammation Chimiokines et Immunopathologie, INSERM UMR996, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
| | - Sylvie Chollet-Martin
- Département d'Immunologie et d'Hématologie, UF Auto-immunité et Hypersensibilités, HUPNVS, Hôpital Bichat, Paris, France.,Inflammation Chimiokines et Immunopathologie, INSERM UMR996, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
| | - Luc de Chaisemartin
- Département d'Immunologie et d'Hématologie, UF Auto-immunité et Hypersensibilités, HUPNVS, Hôpital Bichat, Paris, France.,Inflammation Chimiokines et Immunopathologie, INSERM UMR996, Faculté de Pharmacie, Université Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
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16
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Winberg LK, Rasmussen NS, Nielsen CH, Jacobsen S. Erythrocytes restrict microvesicle-induced production of reactive oxygen species by polymorphonuclear leukocytes. APMIS 2019; 127:538-542. [PMID: 31009117 DOI: 10.1111/apm.12954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 04/12/2019] [Indexed: 11/30/2022]
Abstract
Microvesicles (MVs) are extracellular vesicles released by several cell types upon activation or apoptosis. MVs have the potential to activate complement, which has been suggested to mediate their clearance. However, it is not clear how complement-opsonized MVs are prevented from activating circulating polymorphonuclear leukocytes (PMNs) with release of reactive oxygen species (ROS) and potential damage of endothelium and other bystander cells as consequence. We hypothesized that binding of opsonized MVs to erythrocytes (Es) attenuates MV-induced PMN activation. To test this, normal PMNs were exposed to MVs in the presence and absence of Es from allogenic healthy donors. As analyzed by flow cytometry, the presence of Es restricted the PMN binding of MVs by about 85% (p = 0.002) and mediated a 60-70% inhibition of the PMN production of the ROS H2 O2 , induced by MVs, when lipopolysaccharide was used as a primer (p = 0.002). The competitive binding of MVs to Es was partly dependent on complement, since EDTA inhibited MV binding to Es by 75%. These data suggest that Es, through competitive binding, may restrict MV-induced activation of circulating PMNs and thereby serve a role as a regulator of PMN activation.
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Affiliation(s)
- Line Kjaer Winberg
- Copenhagen Lupus and Vasculitis Clinic, Copenhagen University Hospital, Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen, Denmark.,Institute for Inflammation Research, Center for Rheumatology and Spine Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Niclas Stefan Rasmussen
- Copenhagen Lupus and Vasculitis Clinic, Copenhagen University Hospital, Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen, Denmark.,Institute for Inflammation Research, Center for Rheumatology and Spine Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Claus Henrik Nielsen
- Institute for Inflammation Research, Center for Rheumatology and Spine Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Søren Jacobsen
- Copenhagen Lupus and Vasculitis Clinic, Copenhagen University Hospital, Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen, Denmark
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17
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The Binding of Human IgG to Minipig FcγRs - Implications for Preclinical Assessment of Therapeutic Antibodies. Pharm Res 2019; 36:47. [PMID: 30721414 PMCID: PMC6373530 DOI: 10.1007/s11095-019-2574-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 01/16/2019] [Indexed: 12/26/2022]
Abstract
Purpose The Göttingen minipig is a relevant non-rodent species for regulatory toxicological studies. Yet, its use with therapeutic antibodies has been limited by the unknown binding properties of human immunoglobulins (huIgG) to porcine Fc gamma receptors (poFcγR) influencing safety and efficacy readouts. Therefore, knowing IgG-FcγR interactions in the animal model is a prerequisite for the use of minipigs in preclinical safety and efficacy studies with therapeutic antibodies. Methods Here, we describe the cloning and expression of poFcγRs and their interactions with free and complexed human therapeutic IgG1 by surface plasmon resonance and flow cytometry. Results We show here that poFcγRIa, poFcγRIIa, and poFcγRIIb bind huIgG1 antibodies with comparable affinities as corresponding huFcγRs. Importantly, poFcγRs bind huIgG immune complexes with high avidity, thus probably allowing human-like effector functions. However, poFcγRIIIa binds poIgG1a but not to huIgG1. Conclusions The lack of binding of poFcγRIIIa to huIgG1 might cause underestimation of FcγRIIIa-mediated efficacy or toxicity as mediated by porcine natural killer cells. Therefore, the suitability of minipigs in preclinical studies with human therapeutic antibodies has to be assessed case by case. Our results facilitate the use of Göttingen minipigs for assessment of human therapeutic antibodies in preclinical studies. Electronic supplementary material The online version of this article (10.1007/s11095-019-2574-y) contains supplementary material, which is available to authorized users.
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18
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Beutier H, Hechler B, Godon O, Wang Y, Gillis CM, de Chaisemartin L, Gouel-Chéron A, Magnenat S, Macdonald LE, Murphy AJ, Chollet-Martin S, Longrois D, Gachet C, Bruhns P, Jönsson F. Platelets expressing IgG receptor FcγRIIA/CD32A determine the severity of experimental anaphylaxis. Sci Immunol 2019; 3:3/22/eaan5997. [PMID: 29654057 DOI: 10.1126/sciimmunol.aan5997] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 12/04/2017] [Accepted: 02/16/2018] [Indexed: 12/14/2022]
Abstract
Platelets are key regulators of vascular integrity; however, their role in anaphylaxis, a life-threatening systemic allergic reaction characterized by the loss of vascular integrity and vascular leakage, remains unknown. Anaphylaxis is a consequence of inappropriate cellular responses triggered by antibodies to generally harmless antigens, resulting in a massive mediator release and rapidly occurring organ dysfunction. Human platelets express receptors for immunoglobulin G (IgG) antibodies and can release potent mediators, yet their contribution to anaphylaxis has not been previously addressed in mouse models, probably because mice do not express IgG receptors on platelets. We investigated the contribution of platelets to IgG-dependent anaphylaxis in human IgG receptor-expressing mouse models and a cohort of patients suffering from drug-induced anaphylaxis. Platelet counts dropped immediately and markedly upon anaphylaxis induction only when they expressed the human IgG receptor FcγRIIA/CD32A. Platelet depletion attenuated anaphylaxis, whereas thrombocythemia substantially worsened its severity. FcγRIIA-expressing platelets were directly activated by IgG immune complexes in vivo and were sufficient to restore susceptibility to anaphylaxis in resistant mice. Serotonin released by activated platelets contributed to anaphylaxis severity. Data from a cohort of patients suffering from drug-induced anaphylaxis indicated that platelet activation was associated with anaphylaxis severity and was accompanied by a reduction in circulating platelet numbers. Our findings identify platelets as critical players in IgG-dependent anaphylaxis and provide a rationale for the design of platelet-targeting strategies to attenuate the severity of anaphylactic reactions.
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Affiliation(s)
- Héloïse Beutier
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France.,INSERM U1222, Paris, France.,Université Pierre et Marie Curie, Paris, France
| | - Béatrice Hechler
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand Est, Biologie et Pharmacologie des plaquettes sanguines (BPPS) UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), F-67000 Strasbourg, France
| | - Ophélie Godon
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France.,INSERM U1222, Paris, France
| | - Yu Wang
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France.,INSERM U1222, Paris, France.,Université Diderot Paris VII, Paris, France
| | - Caitlin M Gillis
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France.,INSERM U1222, Paris, France.,Université Pierre et Marie Curie, Paris, France
| | - Luc de Chaisemartin
- Unité Fonctionnelle Auto-immunité et Hypersensibilités, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,UMR996-Inflammation, Chemokines et Immunopathology, INSERM, Université Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
| | - Aurélie Gouel-Chéron
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France.,INSERM U1222, Paris, France.,Département d'Anesthésie-Réanimation, Hôpital Bichat, AP-HP, Paris, France
| | - Stéphanie Magnenat
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand Est, Biologie et Pharmacologie des plaquettes sanguines (BPPS) UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), F-67000 Strasbourg, France
| | | | | | | | - Sylvie Chollet-Martin
- Unité Fonctionnelle Auto-immunité et Hypersensibilités, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,UMR996-Inflammation, Chemokines et Immunopathology, INSERM, Université Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
| | - Dan Longrois
- Département d'Anesthésie-Réanimation, Hôpital Bichat, AP-HP, Paris, France.,INSERM UMR1152, Université Paris Diderot Paris 7, Paris, France
| | - Christian Gachet
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand Est, Biologie et Pharmacologie des plaquettes sanguines (BPPS) UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), F-67000 Strasbourg, France
| | - Pierre Bruhns
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France. .,INSERM U1222, Paris, France
| | - Friederike Jönsson
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France. .,INSERM U1222, Paris, France
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19
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Yam AO, Chtanova T. Imaging the neutrophil: Intravital microscopy provides a dynamic view of neutrophil functions in host immunity. Cell Immunol 2019; 350:103898. [PMID: 30712753 DOI: 10.1016/j.cellimm.2019.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 01/09/2019] [Accepted: 01/13/2019] [Indexed: 12/16/2022]
Abstract
Neutrophils are the first cellular responders of the immune system. They employ their impressive arsenal of microbicidal molecules to provide rapid and efficient defense against pathogens. However, the role of neutrophils extends far beyond microbial destruction to include tissue repair and remodeling, provision of signals to the adaptive immune system and body homeostasis. Intravital imaging has allowed the visualization of neutrophils in their native environment in both health and disease and provided crucial insights into their mechanisms of action. In the last few years the power of intravital imaging has been considerably extended by the introduction of photoconvertible proteins and intracellular signaling reporter mice. This review will highlight recent advances in our understanding of neutrophil biology based on the use of intravital microscopy to visualize their modus operandi in vivo including migration in and out of inflamed tissues, host-pathogen interactions and cell fate.
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Affiliation(s)
- Andrew O Yam
- Immunology Division, Garvan Institute of Medical Research, Sydney, Australia; St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Tatyana Chtanova
- Immunology Division, Garvan Institute of Medical Research, Sydney, Australia; St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, Australia.
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20
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Human neutrophils express low levels of FcγRIIIA, which plays a role in PMN activation. Blood 2019; 133:1395-1405. [PMID: 30655272 DOI: 10.1182/blood-2018-07-864538] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 01/09/2019] [Indexed: 01/13/2023] Open
Abstract
We have identified a rare healthy FcγRIIIB (CD16B)-null donor completely lacking FCGR3B RNA and protein expression and dissected the role of the different neutrophil Fcγ receptors in the response to therapeutic anti-CD20 monoclonal antibodies. We observed that polymorphonuclear neutrophils (PMNs) from FcγRIIIB wild-type (WT) individuals or the null donor were more effectively activated by chronic lymphocytic leukemia (CLL) B-cell targets opsonized with glycoengineered anti-CD20 antibodies compared with fully core-fucosylated anti-CD20 antibodies, suggesting the presence and role of FcγRIIIA (CD16A) on PMNs. Indeed, we demonstrated by reverse-transcription polymerase chain reaction, flow cytometry, and western blot analysis that PMNs from FcγRIIIB WT donors and the null individual express low levels of FcγRIIIA on their surfaces. FcγRIIIA is a functional and activating molecule on these cells, because anti-CD16 F(ab')2 antibodies alone were able to activate highly purified PMNs from the FcγRIIIB-null donor. Use of blocking anti-CD16 and anti-CD32 antibodies showed that FcγRIIIA is also a major mediator of phagocytosis of CD20-opsonized beads by FcγRIIIB WT and null PMNs. In contrast, trogocytosis of antibody-opsonized CLL B cells by PMNs was mediated primarily by FcγRIIIB in WT PMNs and by FcγRIIA in null PMNs. We conclude that FcγRIIIA is an important player in PMN functions, whereas FcγRIIIB is dispensable for activation and phagocytosis. We discuss the clinical implications of these findings.
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21
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Wieland A, Ahmed R. Fc Receptors in Antimicrobial Protection. Curr Top Microbiol Immunol 2019; 423:119-150. [DOI: 10.1007/82_2019_154] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Won DI, Kim S, Lee EH. Neutrophil oxidative burst as a diagnostic indicator of IgG-mediated anaphylaxis. Blood Res 2018; 53:299-306. [PMID: 30588467 PMCID: PMC6300672 DOI: 10.5045/br.2018.53.4.299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 07/26/2018] [Accepted: 07/30/2018] [Indexed: 11/17/2022] Open
Abstract
Background IgG-mediated anaphylaxis occurs after infusion of certain monoclonal antibody-based therapeutics. New in vitro tests are urgently needed to diagnose such reactions. We investigated whether allergens trigger neutrophil oxidative burst (OB) and if neutrophil OB occurs due to allergen-specific IgG (sIgG). Methods Neutrophil OB was measured by dihydrorhodamine 123 flow cytometry using a leukocyte suspension spiked with a very small patch of the allergen crude extract, Dermatophagoides farinae (Der f). The mean fluorescence intensity ratio of stimulated to unstimulated samples was calculated as the neutrophil oxidative index (NOI). Results The Der f-specific NOI (Der f-sNOI) showed a time-dependent increase after Der f extract addition. At 15 min activation, higher Der f-sIgG levels were associated with lower Der f-sNOI values in 31 subjects (P<0.05). This inverse relationship occurs due to the initial blocking effect of free Der f-sIgG. Additionally, neutrophil OB was nearly absent (Der f-sNOI of -1) in two cases: a subject with undetectable Der f-sIgG levels and washed leukocyte suspensions deprived of Der f-sIgG. Conclusion Allergens can trigger neutrophil OB via preexisting allergen-sIgG. Neutrophil OB can be easily measured in a leukocyte suspension spiked with the allergen. This assay can be used to diagnose IgG-mediated anaphylaxis.
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Affiliation(s)
- Dong Il Won
- Department of Clinical Pathology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Sujeong Kim
- Division of Allergy and Infectious Diseases, Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Eun Hee Lee
- Green Cross Reference Laboratory, Yongin, Korea
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23
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Engineered hexavalent Fc proteins with enhanced Fc-gamma receptor avidity provide insights into immune-complex interactions. Commun Biol 2018; 1:146. [PMID: 30272022 PMCID: PMC6138732 DOI: 10.1038/s42003-018-0149-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 08/22/2018] [Indexed: 12/14/2022] Open
Abstract
Autoantibody-mediated diseases are currently treated with intravenous immunoglobulin, which is thought to act in part via blockade of Fc gamma receptors, thereby inhibiting autoantibody effector functions and subsequent pathology. We aimed to develop recombinant molecules with enhanced Fc receptor avidity and thus increased potency over intravenous immunoglobulin. Here we describe the molecular engineering of human Fc hexamers and explore their therapeutic and safety profiles. We show Fc hexamers were more potent than IVIG in phagocytosis blockade and disease models. However, in human whole-blood safety assays incubation with IgG1 isotype Fc hexamers resulted in cytokine release, platelet and complement activation, whereas the IgG4 version did not. We used a statistically designed mutagenesis approach to identify the key Fc residues involved in these processes. Cytokine release was found to be dependent on neutrophil FcγRIIIb interactions with L234 and A327 in the Fc. Therefore, Fc hexamers provide unique insights into Fc receptor biology. Tania Rowley et al. present multivalent Fc molecules with enhanced avidity for Fc gamma receptors in order to improve the treatment of autoantibody-mediated human diseases. They found several key amino acids involved in Fc receptor binding interactions.
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Weber F, Breustedt D, Schlicht S, Meyer CA, Niewoehner J, Ebeling M, Freskgard PO, Bruenker P, Singer T, Reth M, Iglesias A. First Infusion Reactions are Mediated by FcγRIIIb and Neutrophils. Pharm Res 2018; 35:169. [PMID: 29951887 PMCID: PMC6021477 DOI: 10.1007/s11095-018-2448-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/15/2018] [Indexed: 12/17/2022]
Abstract
Purpose Administration of therapeutic monoclonal antibodies (mAbs) is frequently accompanied by severe first infusion reactions (FIR). The mechanism driving FIR is still unclear. This study aimed to investigate the cellular and molecular mechanisms causing FIR in humanized mouse models and their potential for evaluating FIR risk in patients. Methods Mice humanized for Fc gamma receptors (FcγRs) were generated by recombination-mediated genomic replacement. Body temperature, cytokine release and reactive oxygen species (ROS) were measured to assess FIR to mAbs. Results Infusion of human mAb specific for mouse transferrin receptor (HamTfR) into FcγR-humanized mice, produced marked transient hypothermia accompanied by an increase in inflammatory cytokines KC and MIP-2, and ROS. FIR were dependent on administration route and Fc-triggered effector functions mediated by neutrophils. Human neutrophils also induced FIR in wild type mice infused with HamTfR. Specific knock-in mice demonstrated that human FcγRIIIb on neutrophils was both necessary and sufficient to cause FIR. FcγRIIIb-mediated FIR was abolished by depleting neutrophils or blocking FcγRIIIb with CD11b antibodies. Conclusions Human FcγRIIIb and neutrophils are primarily responsible for triggering FIR. Clinical strategies to prevent FIR in patients should focus on this pathway and may include transient depletion of neutrophils or blocking FcγRIIIb with specific mAbs. Electronic supplementary material The online version of this article (10.1007/s11095-018-2448-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Felix Weber
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland
| | - Daniel Breustedt
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland
- Novartis Pharma AG, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Sonja Schlicht
- Small Molecule Research, Therapeutic Modalities, Roche Innovation Center Basel, Basel, Switzerland
| | - Claas A Meyer
- Small Molecule Research, Therapeutic Modalities, Roche Innovation Center Basel, Basel, Switzerland
| | - Jens Niewoehner
- Large Molecule Research, Therapeutic Modalities, Roche Innovation Center Munich, Munich, Germany
| | - Martin Ebeling
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland
| | - Per-Ola Freskgard
- Neuroscience, Ophthalmology and Rare Diseases Discovery and Translational Area, Roche Innovation Center Basel, Basel, Switzerland
| | - Peter Bruenker
- Large Molecule Research, Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Thomas Singer
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland
| | - Michael Reth
- Institute of Biology III (Molecular Immunology), University of Freiburg, Freiburg im Breisgau, Germany
| | - Antonio Iglesias
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland.
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Takeda Y, Kato T, Nemoto N, Araki A, Gazi MY, Nara H, Asao H. Augmentation of the expression of the eotaxin receptor on duodenal neutrophils by IL-21. Cytokine 2018; 110:194-203. [PMID: 29778007 DOI: 10.1016/j.cyto.2018.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 05/09/2018] [Accepted: 05/09/2018] [Indexed: 02/04/2023]
Abstract
Inflammation can occur via different mechanisms, such as via acute and chronic responses, on numerous occasions and function accordingly through various roles. There are more than five subsets of neutrophils; neutrophilic heterogeneity is modulated by the inflammatory condition. To understand the characteristics of inflammation, identification of atypical neutrophils is important. In this study, we found that the expression of eotaxin receptor (CD193) on atypical neutrophils in the duodenum is augmented in IL-21 isoform transgenic (Tg) mice. In a series of studies, we have established a Tg mouse strain to further investigate the functions of IL-21 in vivo. Interestingly, Tg mice immunized with ovalbumin (OVA) were more sensitive to OVA-induced systemic anaphylaxis as compared with wild type mice with duodenal and splenic gross congestion. Further analysis conducted in the duodenum of Tg mice revealed that only the number of neutrophils migrating into the duodenum was significantly increased prior to immunization. Previous studies have shown that the gastrointestinal compartment and the spleen constantly produce eotaxin, which regulates basal levels of tissue eosinophils. Therefore, we analyzed CD193 expression on neutrophils and eosinophils. As expected, its expression by duodenal neutrophils was upregulated in Tg mice. Furthermore, the addition of IL-21 into bone marrow cell culture increased the number of CD193+ neutrophils, which easily migrated into the duodenum. These observations suggested that CD193+ neutrophils increase in number under inflammatory conditions due to chronic IL-21 production.
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Affiliation(s)
- Yuji Takeda
- Department of Immunology, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan
| | - Tomoyuki Kato
- Department of Urology, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan
| | - Nobuhito Nemoto
- Department of Immunology, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan; Department of Orthopaedics, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan
| | - Akemi Araki
- Department of Immunology, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan
| | - Mohammad Yeashin Gazi
- Department of Immunology, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan
| | - Hidetoshi Nara
- Department of Immunology, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan
| | - Hironobu Asao
- Department of Immunology, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan.
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Abstract
Neutrophils play a key role in host defense against pathogens. They can contribute to pathological inflammation, and are thought to exacerbate tissue injury upon exposure to bacterial products, such as endotoxin (LPS). Recent findings suggest that neutrophils can also participate in adaptive immune responses and contribute to inflammation resolution. Many discoveries regarding the in vivo role of neutrophils were made possible by the use of genetically modified neutrophil-deficient mice, or by the use of neutrophil-depleting antibodies. Here we describe a new mouse model, PMNDTR mice, in which neutrophils can be selectively depleted upon injection of diphtheria toxin. Using this model, we have recently demonstrated that neutrophils play a protective role during lethal endotoxin-induced systemic shock. This new mouse model presents several major advantages over more classical models of neutropenia, which are discussed herein.
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Affiliation(s)
- Caitlin M Gillis
- Institut Pasteur, Département d'immunologie, Inserm U1222, Unité des anticorps en thérapie et pathologie, 25, rue du Docteur Roux, 75015 Paris, France
| | - Laurent L Reber
- Institut Pasteur, Département d'immunologie, Inserm U1222, Unité des anticorps en thérapie et pathologie, 25, rue du Docteur Roux, 75015 Paris, France
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Reber LL, Hernandez JD, Galli SJ. The pathophysiology of anaphylaxis. J Allergy Clin Immunol 2017; 140:335-348. [PMID: 28780941 PMCID: PMC5657389 DOI: 10.1016/j.jaci.2017.06.003] [Citation(s) in RCA: 260] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/12/2017] [Accepted: 06/14/2017] [Indexed: 01/14/2023]
Abstract
Anaphylaxis is a severe systemic hypersensitivity reaction that is rapid in onset; characterized by life-threatening airway, breathing, and/or circulatory problems; and usually associated with skin and mucosal changes. Because it can be triggered in some persons by minute amounts of antigen (eg, certain foods or single insect stings), anaphylaxis can be considered the most aberrant example of an imbalance between the cost and benefit of an immune response. This review will describe current understanding of the immunopathogenesis and pathophysiology of anaphylaxis, focusing on the roles of IgE and IgG antibodies, immune effector cells, and mediators thought to contribute to examples of the disorder. Evidence from studies of anaphylaxis in human subjects will be discussed, as well as insights gained from analyses of animal models, including mice genetically deficient in the antibodies, antibody receptors, effector cells, or mediators implicated in anaphylaxis and mice that have been "humanized" for some of these elements. We also review possible host factors that might influence the occurrence or severity of anaphylaxis. Finally, we will speculate about anaphylaxis from an evolutionary perspective and argue that, in the context of severe envenomation by arthropods or reptiles, anaphylaxis might even provide a survival advantage.
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Affiliation(s)
- Laurent L Reber
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; Institut National de la Santé et de la Recherche Médicale, Paris, France; Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Joseph D Hernandez
- Department of Pediatrics, Division of Allergy, Immunology and Rheumatology, Stanford University School of Medicine, Stanford, Calif
| | - Stephen J Galli
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif; Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, Calif.
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Abstract
A key determinant for the survival of organisms is their capacity to recognize and respond efficiently to foreign antigens. This is largely accomplished by the orchestrated activity of the innate and adaptive branches of the immune system. Antibodies are specifically generated in response to foreign antigens, facilitating thereby the specific recognition of antigens of almost infinite diversity. Receptors specific for the Fc domain of antibodies, Fc receptors, are expressed on the surface of the various myeloid leukocyte populations and mediate the binding and recognition of antibodies by innate leukocytes. By directly linking the innate and the adaptive components of immunity, Fc receptors play a central role in host defense and the maintenance of tissue homeostasis through the induction of diverse proinflammatory, anti-inflammatory, and immunomodulatory processes that are initiated upon engagement by the Fc domain. In this chapter, we discuss the mechanisms that regulate Fc domain binding to the various types of Fc receptors and provide an overview of the astonishing diversity of effector functions that are mediated through Fc-FcR interactions on myeloid cells. Lastly, we discuss the impact of FcR-mediated interactions in the context of IgG-mediated inflammation, autoimmunity, susceptibility to infection, and responsiveness to antibody-based therapeutics.
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29
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Ahmadzai MM, Broadbent D, Occhiuto C, Yang C, Das R, Subramanian H. Canonical and Noncanonical Signaling Roles of β-Arrestins in Inflammation and Immunity. Adv Immunol 2017; 136:279-313. [PMID: 28950948 DOI: 10.1016/bs.ai.2017.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
β-Arrestins are a highly conserved family of cytosolic adaptor proteins that contribute to many immune functions by orchestrating the desensitization and internalization of cell-surface G protein-coupled receptors (GPCRs) via well-studied canonical interactions. In cells of the innate and adaptive immune system, β-arrestins also subserve a parallel but less understood role in which they propagate, rather than terminate, intracellular signal transduction cascades. Because β-arrestins are promiscuous in their binding, they are capable of interacting with several different GPCRs and downstream effectors; in doing so, they vastly expand the repertoire of cellular responses evoked by agonist binding and the scope of responses that may contribute to inflammation during infectious and sterile insults. In this chapter, we attempt to provide an overview of the canonical and noncanonical roles of β-arrestins in inflammatory diseases.
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Affiliation(s)
| | | | | | - Canchai Yang
- Michigan State University, East Lansing, MI, United States
| | - Rupali Das
- Michigan State University, East Lansing, MI, United States
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Immune modulation of some autoimmune diseases: the critical role of macrophages and neutrophils in the innate and adaptive immunity. J Transl Med 2017; 15:36. [PMID: 28202039 PMCID: PMC5312441 DOI: 10.1186/s12967-017-1141-8] [Citation(s) in RCA: 196] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/03/2017] [Indexed: 12/16/2022] Open
Abstract
Macrophages and neutrophils are key components involved in the regulation of numerous chronic inflammatory diseases, infectious disorders, and especially certain autoimmune disease. However, little is known regarding the contribution of these cells to the pathogenesis of autoimmune disorders. Recent studies have aimed to clarify certain important factors affecting the immunogenicity of these cells, including the type and dose of antigen, the microenvironment of the cell-antigen encounter, and the number, subset, and phenotype of these cells, which can prevent or induce autoimmune responses. This review highlights the role of macrophage subsets and neutrophils in injured tissues, supporting their cooperation during the pathogenesis of certain autoimmune diseases.
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Takakura M, Tada M, Ishii-Watabe A. Development of cell-based assay for predictively evaluating the FcγR-mediated human immune cell activation by therapeutic monoclonal antibodies. Biochem Biophys Res Commun 2017; 485:189-194. [PMID: 28196745 DOI: 10.1016/j.bbrc.2017.02.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 02/09/2017] [Indexed: 02/01/2023]
Abstract
Therapeutic monoclonal antibodies (mAbs) have important roles in treatments for various cancers and inflammatory diseases. Their highly target specificities provide controlled safety profiles. However, therapeutic mAbs commonly pose a risk of the induction of the release of cytokines, which may result in adverse events including infusion reaction and cytokine release syndrome. Several mechanisms are involved in the cytokine releases induced by therapeutic mAbs, and the activation of immune effector cells via Fcγ receptors (FcγRs) is one of the putative mechanisms for most IgG-subclass mAbs. The relationship between cytokine releases and mAbs' Fc functions is not fully understood. Here we developed a simple reporter cell-based assay for estimating the FcγR-mediated activation of human immune effector cells by mAbs. Our use of the cell-based assay to compare Fc-engineered mAbs with different FcγR-activation profiles revealed that the releases of inflammatory cytokines and chemokines from human peripheral blood mononuclear cells (hPBMCs) induced by the mAbs were elevated by treatment with Fc-engineered mAbs with higher FcγR-activation properties. Our results also suggested the involvement of monocytic effector cells in the activation of hPBMCs as sources of released cytokines and chemokines, which may lead to the immune cell-mediated adverse events. Our new reporter cell assay is a promising tool for evaluating and predicting the activation of human immune cells by novel Fc-engineered mAbs.
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Affiliation(s)
- Michiko Takakura
- AMED, Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan; Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Minoru Tada
- Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, Tokyo 158-8501, Japan.
| | - Akiko Ishii-Watabe
- Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, Tokyo 158-8501, Japan
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Balbino B, Sibilano R, Starkl P, Marichal T, Gaudenzio N, Karasuyama H, Bruhns P, Tsai M, Reber LL, Galli SJ. Pathways of immediate hypothermia and leukocyte infiltration in an adjuvant-free mouse model of anaphylaxis. J Allergy Clin Immunol 2017; 139:584-596.e10. [PMID: 27555460 PMCID: PMC5241268 DOI: 10.1016/j.jaci.2016.05.047] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 05/16/2016] [Accepted: 05/31/2016] [Indexed: 01/07/2023]
Abstract
BACKGROUND Conflicting results have been obtained regarding the roles of Fc receptors and effector cells in models of active systemic anaphylaxis (ASA). In part, this might reflect the choice of adjuvant used during sensitization because various adjuvants might differentially influence the production of particular antibody isotypes. OBJECTIVE We developed an "adjuvant-free" mouse model of ASA and assessed the contributions of components of the "classical" and "alternative" pathways in this model. METHODS Mice were sensitized intraperitoneally with ovalbumin at weekly intervals for 6 weeks and challenged intraperitoneally with ovalbumin 2 weeks later. RESULTS Wild-type animals had immediate hypothermia and late-phase intraperitoneal inflammation in this model. These features were reduced in mice lacking the IgE receptor FcεRI, the IgG receptor FcγRIII or the common γ-chain FcRγ. FcγRIV blockade resulted in a partial reduction of inflammation without any effect on hypothermia. Depletion of monocytes/macrophages with clodronate liposomes significantly reduced the hypothermia response. By contrast, depletion of neutrophils or basophils had no significant effects in this ASA model. Both the hypothermia and inflammation were dependent on platelet-activating factor and histamine and were reduced in 2 types of mast cell (MC)-deficient mice. Finally, engraftment of MC-deficient mice with bone marrow-derived cultured MCs significantly exacerbated the hypothermia response and restored inflammation to levels similar to those observed in wild-type mice. CONCLUSION Components of the classical and alternative pathways contribute to anaphylaxis in this adjuvant-free model, with key roles for MCs and monocytes/macrophages.
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MESH Headings
- Adjuvants, Immunologic
- Anaphylaxis/immunology
- Animals
- Cell Movement
- Cells, Cultured
- Complement Pathway, Alternative
- Complement Pathway, Classical
- Disease Models, Animal
- Humans
- Hypothermia/immunology
- Immunization
- Leukocytes/immunology
- Macrophages/immunology
- Mast Cells/immunology
- Mast Cells/transplantation
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Receptors, IgE/genetics
- Receptors, IgE/metabolism
- Receptors, IgG/genetics
- Receptors, IgG/metabolism
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Affiliation(s)
- Bianca Balbino
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM, U1222, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - Riccardo Sibilano
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Philipp Starkl
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Thomas Marichal
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif
| | - Nicolas Gaudenzio
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Hajime Karasuyama
- Department of Immune Regulation, Tokyo Medical and Dental University, Graduate School of Medical and Dental Sciences, Tokyo, Japan
| | - Pierre Bruhns
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM, U1222, Paris, France
| | - Mindy Tsai
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Laurent L Reber
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM, U1222, Paris, France; Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif.
| | - Stephen J Galli
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif; Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, Calif.
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Hägglöf T, Sedimbi SK, Yates JL, Parsa R, Salas BH, Harris RA, Leadbetter EA, Karlsson MCI. Neutrophils license iNKT cells to regulate self-reactive mouse B cell responses. Nat Immunol 2016; 17:1407-1414. [PMID: 27798616 DOI: 10.1038/ni.3583] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 09/13/2016] [Indexed: 12/13/2022]
Abstract
The innate responsiveness of the immune system is important not only for quick responses to pathogens but also for the initiation and shaping of the subsequent adaptive immune response. Activation via the cytokine IL-18, a product of inflammasomes, gives rise to a rapid response that includes the production of self-reactive antibodies. As increased concentrations of this cytokine are found in inflammatory diseases, we investigated the origin of the B cell response and its regulation. We identified an accumulation of B cell-helper neutrophils in the spleen that interacted with innate-type invariant natural killer T cells (iNKT cells) to regulate B cell responses. We found that neutrophil-dependent expression of the death-receptor ligand FasL by iNKT cells was needed to restrict autoantibody production. Neutrophils can thus license iNKT cells to regulate potentially harmful autoreactive B cell responses during inflammasome-driven inflammation.
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Affiliation(s)
- Thomas Hägglöf
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solna, Sweden
| | - Saikiran K Sedimbi
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solna, Sweden
| | | | - Roham Parsa
- Department of Clinical Neuroscience, Karolinska Institutet, Centre for Molecular Medicine, Karolinska University Hospital at Solna, Solna, Sweden
| | - Briana Hauff Salas
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Robert A Harris
- Department of Clinical Neuroscience, Karolinska Institutet, Centre for Molecular Medicine, Karolinska University Hospital at Solna, Solna, Sweden
| | - Elizabeth A Leadbetter
- Trudeau Institute, Saranac Lake, New York, USA.,Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Mikael C I Karlsson
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solna, Sweden
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Gillis CM, Zenatti PP, Mancardi DA, Beutier H, Fiette L, Macdonald LE, Murphy AJ, Celli S, Bousso P, Jönsson F, Bruhns P. In vivo effector functions of high-affinity mouse IgG receptor FcγRI in disease and therapy models. J Autoimmun 2016; 80:95-102. [PMID: 27745779 DOI: 10.1016/j.jaut.2016.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 09/19/2016] [Accepted: 09/22/2016] [Indexed: 12/21/2022]
Abstract
Two activating mouse IgG receptors (FcγRs) have the ability to bind monomeric IgG, the high-affinity mouse FcγRI and FcγRIV. Despite high circulating levels of IgG, reports using FcγRI-/- or FcγRIV-/- mice or FcγRIV-blocking antibodies implicate these receptors in IgG-induced disease severity or therapeutic Ab efficacy. From these studies, however, one cannot conclude on the effector capabilities of a given receptor, because different activating FcγRs possess redundant properties in vivo, and cooperation between FcγRs may occur, or priming phenomena. To help resolve these uncertainties, we used mice expressing only FcγRI to determine its intrinsic properties in vivo. FcγRIonly mice were sensitive to IgG-induced autoimmune thrombocytopenia and anti-CD20 and anti-tumour immunotherapy, but resistant to IgG-induced autoimmune arthritis, anaphylaxis and airway inflammation. Our results show that the in vivo roles of FcγRI are more restricted than initially reported using FcγRI-/- mice, but confirm effector capabilities for this high-affinity IgG receptor in vivo.
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MESH Headings
- Animals
- Antibodies, Blocking/therapeutic use
- Antibody Affinity
- B-Lymphocytes/immunology
- Disease Models, Animal
- Hepatectomy
- Humans
- Immunotherapy/methods
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Purpura, Thrombocytopenic, Idiopathic/immunology
- Purpura, Thrombocytopenic, Idiopathic/therapy
- Receptors, IgG/genetics
- Receptors, IgG/metabolism
- Splenectomy
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Affiliation(s)
- Caitlin M Gillis
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM U1222, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - Priscila P Zenatti
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM U1222, Paris, France
| | - David A Mancardi
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM U1222, Paris, France
| | - Héloïse Beutier
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM U1222, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - Laurence Fiette
- Département Infection et Epidémiologie, Unité d'Histopathologie Humaine et Modèles Animaux, Institut Pasteur, Paris, France
| | | | | | - Susanna Celli
- Institut Pasteur, Dynamics of Immune Responses Unit, 75015 Paris, France; INSERM U1223, rue du Dr Roux, Paris, France
| | - Philippe Bousso
- Institut Pasteur, Dynamics of Immune Responses Unit, 75015 Paris, France; INSERM U1223, rue du Dr Roux, Paris, France
| | - Friederike Jönsson
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM U1222, Paris, France
| | - Pierre Bruhns
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM U1222, Paris, France.
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Mechanisms of anaphylaxis in human low-affinity IgG receptor locus knock-in mice. J Allergy Clin Immunol 2016; 139:1253-1265.e14. [PMID: 27568081 DOI: 10.1016/j.jaci.2016.06.058] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 05/13/2016] [Accepted: 06/13/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Anaphylaxis can proceed through distinct IgE- or IgG-dependent pathways, which have been investigated in various mouse models. We developed a novel mouse strain in which the human low-affinity IgG receptor locus, comprising both activating (hFcγRIIA, hFcγRIIIA, and hFcγRIIIB) and inhibitory (hFcγRIIB) hFcγR genes, has been inserted into the equivalent murine locus, corresponding to a locus swap. OBJECTIVE We sought to determine the capabilities of hFcγRs to induce systemic anaphylaxis and identify the cell types and mediators involved. METHODS hFcγR expression on mouse and human cells was compared to validate the model. Passive systemic anaphylaxis was induced by injection of heat-aggregated human intravenous immunoglobulin and active systemic anaphylaxis after immunization and challenge. Anaphylaxis severity was evaluated based on hypothermia and mortality. The contribution of receptors, mediators, or cell types was assessed based on receptor blockade or depletion. RESULTS The human-to-mouse low-affinity FcγR locus swap engendered hFcγRIIA/IIB/IIIA/IIIB expression in mice comparable with that seen in human subjects. Knock-in mice were susceptible to passive and active anaphylaxis, accompanied by downregulation of both activating and inhibitory hFcγR expression on specific myeloid cells. The contribution of hFcγRIIA was predominant. Depletion of neutrophils protected against hypothermia and mortality. Basophils contributed to a lesser extent. Anaphylaxis was inhibited by platelet-activating factor receptor or histamine receptor 1 blockade. CONCLUSION Low-affinity FcγR locus-switched mice represent an unprecedented model of cognate hFcγR expression. Importantly, IgG-related anaphylaxis proceeds within a native context of activating and inhibitory hFcγRs, indicating that, despite robust hFcγRIIB expression, activating signals can dominate to initiate a severe anaphylactic reaction.
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Stamatiades EG, Tremblay ME, Bohm M, Crozet L, Bisht K, Kao D, Coelho C, Fan X, Yewdell WT, Davidson A, Heeger PS, Diebold S, Nimmerjahn F, Geissmann F. Immune Monitoring of Trans-endothelial Transport by Kidney-Resident Macrophages. Cell 2016; 166:991-1003. [PMID: 27477514 DOI: 10.1016/j.cell.2016.06.058] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/09/2016] [Accepted: 06/29/2016] [Indexed: 11/28/2022]
Abstract
Small immune complexes cause type III hypersensitivity reactions that frequently result in tissue injury. The responsible mechanisms, however, remain unclear and differ depending on target organs. Here, we identify a kidney-specific anatomical and functional unit, formed by resident macrophages and peritubular capillary endothelial cells, which monitors the transport of proteins and particles ranging from 20 to 700 kDa or 10 to 200 nm into the kidney interstitium. Kidney-resident macrophages detect and scavenge circulating immune complexes "pumped" into the interstitium via trans-endothelial transport and trigger a FcγRIV-dependent inflammatory response and the recruitment of monocytes and neutrophils. In addition, FcγRIV and TLR pathways synergistically "super-activate" kidney macrophages when immune complexes contain a nucleic acid. These data identify a physiological function of tissue-resident kidney macrophages and a basic mechanism by which they initiate the inflammatory response to small immune complexes in the kidney.
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Affiliation(s)
- Efstathios G Stamatiades
- Immunology Program and Ludwig Center, Memorial Sloan Kettering Cancer Center, 417 East 68th Street, New York, NY 10065, USA
| | - Marie-Eve Tremblay
- Département de Médecine Moléculaire, Université Laval, Laval, QC G1V 0A6, Canada; Axe Neurosciences, Centre de Recherche du CHU de Québec, Québec, QC G1V 4G2, Canada
| | - Mathieu Bohm
- Immunology Program and Ludwig Center, Memorial Sloan Kettering Cancer Center, 417 East 68th Street, New York, NY 10065, USA; Division of Immunology, Infection and Center for Molecular and Cellular Biology of Inflammation, Inflammatory Diseases King's College London, London SE1 1UL, UK
| | - Lucile Crozet
- Immunology Program and Ludwig Center, Memorial Sloan Kettering Cancer Center, 417 East 68th Street, New York, NY 10065, USA; Weill Cornell Graduate School of Medical Sciences, 1300 York Avenue, New York, NY 10065, USA
| | - Kanchan Bisht
- Département de Médecine Moléculaire, Université Laval, Laval, QC G1V 0A6, Canada; Axe Neurosciences, Centre de Recherche du CHU de Québec, Québec, QC G1V 4G2, Canada
| | - Daniela Kao
- Department of Biology, University of Erlangen-Nuremberg, Erwin-Rommel-Strasse 3, 91058 Erlangen, Germany
| | - Carolina Coelho
- Immunology Program and Ludwig Center, Memorial Sloan Kettering Cancer Center, 417 East 68th Street, New York, NY 10065, USA
| | - Xiying Fan
- Immunology Program and Ludwig Center, Memorial Sloan Kettering Cancer Center, 417 East 68th Street, New York, NY 10065, USA; Howard Hughes Medical Institute, Memorial Sloan-Kettering Cancer Center, 417 East 68th Street, New York, NY 10065, USA
| | - William T Yewdell
- Immunology Program and Ludwig Center, Memorial Sloan Kettering Cancer Center, 417 East 68th Street, New York, NY 10065, USA
| | - Anne Davidson
- The Feinstein Institute for Medical Research, Manhasset, NY 11030, USA
| | - Peter S Heeger
- Department of Medicine, Recanati Miller Transplant Institute and Immunology Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Sandra Diebold
- Immunotoxicology Team Division, National Institute for Biological Standards and Control, Potters Bar EN6 3QG, UK
| | - Falk Nimmerjahn
- Department of Biology, University of Erlangen-Nuremberg, Erwin-Rommel-Strasse 3, 91058 Erlangen, Germany
| | - Frederic Geissmann
- Immunology Program and Ludwig Center, Memorial Sloan Kettering Cancer Center, 417 East 68th Street, New York, NY 10065, USA; Division of Immunology, Infection and Center for Molecular and Cellular Biology of Inflammation, Inflammatory Diseases King's College London, London SE1 1UL, UK; Weill Cornell Graduate School of Medical Sciences, 1300 York Avenue, New York, NY 10065, USA.
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Li JL, Lim CH, Tay FW, Goh CC, Devi S, Malleret B, Lee B, Bakocevic N, Chong SZ, Evrard M, Tanizaki H, Lim HY, Russell B, Renia L, Zolezzi F, Poidinger M, Angeli V, St John AL, Harris JE, Tey HL, Tan SM, Kabashima K, Weninger W, Larbi A, Ng LG. Neutrophils Self-Regulate Immune Complex-Mediated Cutaneous Inflammation through CXCL2. J Invest Dermatol 2016; 136:416-424. [PMID: 26802238 DOI: 10.1038/jid.2015.410] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 10/02/2015] [Accepted: 10/05/2015] [Indexed: 01/22/2023]
Abstract
Deposition of immune complexes (ICs) in tissues triggers acute inflammatory pathology characterized by massive neutrophil influx leading to edema and hemorrhage, and is especially associated with vasculitis of the skin, but the mechanisms that regulate this type III hypersensitivity process remain poorly understood. Here, using a combination of multiphoton intravital microscopy and genomic approaches, we re-examined the cutaneous reverse passive Arthus reaction and observed that IC-activated neutrophils underwent transmigration, triggered further IC formation, and transported these ICs into the interstitium, whereas neutrophil depletion drastically reduced IC formation and ameliorated vascular leakage in vivo. Thereafter, we show that these neutrophils expressed high levels of CXCL2, which further amplified neutrophil recruitment and activation in an autocrine and/or paracrine manner. Notably, CXCL1 expression was restricted to tissue-resident cell types, but IC-activated neutrophils may also indirectly, via soluble factors, modulate macrophage CXCL1 expression. Consistent with their distinct cellular origins and localization, only neutralization of CXCL2 but not CXCL1 in the interstitium effectively reduced neutrophil recruitment. In summary, our study establishes that neutrophils are able to self-regulate their own recruitment and responses during IC-mediated inflammation through a CXCL2-driven feed forward loop.
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Affiliation(s)
- Jackson LiangYao Li
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore; School of Biological Sciences, Nanyang Technological University, Singapore
| | - Chun Hwee Lim
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore; School of Biological Sciences, Nanyang Technological University, Singapore
| | - Fen Wei Tay
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore; School of Biological Sciences, Nanyang Technological University, Singapore
| | - Chi Ching Goh
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Sapna Devi
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Benoit Malleret
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore; Department of Microbiology, Yoon Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Bernett Lee
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Nadja Bakocevic
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Shu Zhen Chong
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Maximilien Evrard
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Hideaki Tanizaki
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hwee Ying Lim
- Department of Microbiology, Yoon Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Bruce Russell
- Department of Microbiology, Yoon Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Laurent Renia
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Francesca Zolezzi
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Michael Poidinger
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Veronique Angeli
- Department of Microbiology, Yoon Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ashley L St John
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore
| | - John E Harris
- Division of Dermatology, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | | | - Suet Mien Tan
- School of Biological Sciences, Nanyang Technological University, Singapore
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Wolfgang Weninger
- Centenary Institute for Cancer Medicine and Cell Biology, Newtown, New South Wales, Australia; Discipline of Dermatology, University of Sydney, Sydney, New South Wales, Australia; Department of Dermatology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Anis Larbi
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore
| | - Lai Guan Ng
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore; School of Biological Sciences, Nanyang Technological University, Singapore.
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Beutier H, Gillis CM, Iannascoli B, Godon O, England P, Sibilano R, Reber LL, Galli SJ, Cragg MS, Van Rooijen N, Mancardi DA, Bruhns P, Jönsson F. IgG subclasses determine pathways of anaphylaxis in mice. J Allergy Clin Immunol 2016; 139:269-280.e7. [PMID: 27246523 DOI: 10.1016/j.jaci.2016.03.028] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 01/29/2016] [Accepted: 03/03/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND Animal models have demonstrated that allergen-specific IgG confers sensitivity to systemic anaphylaxis that relies on IgG Fc receptors (FcγRs). Mouse IgG2a and IgG2b bind activating FcγRI, FcγRIII, and FcγRIV and inhibitory FcγRIIB; mouse IgG1 binds only FcγRIII and FcγRIIB. Although these interactions are of strikingly different affinities, these 3 IgG subclasses have been shown to enable induction of systemic anaphylaxis. OBJECTIVE We sought to determine which pathways control the induction of IgG1-, IgG2a-, and IgG2b-dependent passive systemic anaphylaxis. METHODS Mice were sensitized with IgG1, IgG2a, or IgG2b anti-trinitrophenyl mAbs and challenged with trinitrophenyl-BSA intravenously to induce systemic anaphylaxis that was monitored by using rectal temperature. Anaphylaxis was evaluated in mice deficient for FcγRs injected with mediator antagonists or in which basophils, monocytes/macrophages, or neutrophils had been depleted. FcγR expression was evaluated on these cells before and after anaphylaxis. RESULTS Activating FcγRIII is the receptor primarily responsible for all 3 models of anaphylaxis, and subsequent downregulation of this receptor was observed. These models differentially relied on histamine release and the contribution of mast cells, basophils, macrophages, and neutrophils. Strikingly, basophil contribution and histamine predominance in mice with IgG1- and IgG2b-induced anaphylaxis correlated with the ability of inhibitory FcγRIIB to negatively regulate these models of anaphylaxis. CONCLUSION We propose that the differential expression of inhibitory FcγRIIB on myeloid cells and its differential binding of IgG subclasses controls the contributions of mast cells, basophils, neutrophils, and macrophages to IgG subclass-dependent anaphylaxis. Collectively, our results unravel novel complexities in the involvement and regulation of cell populations in IgG-dependent reactions in vivo.
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Affiliation(s)
- Héloïse Beutier
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; INSERM, U1222, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - Caitlin M Gillis
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; INSERM, U1222, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - Bruno Iannascoli
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; INSERM, U1222, Paris, France
| | - Ophélie Godon
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; INSERM, U1222, Paris, France
| | - Patrick England
- Institut Pasteur, Plate-Forme de Biophysique Moléculaire, Centre d'Innovation et Recherche Technologique (CiTech), CNRS-UMR3528, Paris, France
| | - Riccardo Sibilano
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Laurent L Reber
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; INSERM, U1222, Paris, France
| | - Stephen J Galli
- Department of Pathology, Stanford University School of Medicine, Stanford, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Mark S Cragg
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, United Kingdom
| | - Nico Van Rooijen
- Department of Molecular Cell Biology, VU Medical Center, Amsterdam, The Netherlands
| | - David A Mancardi
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; INSERM, U1222, Paris, France
| | - Pierre Bruhns
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; INSERM, U1222, Paris, France.
| | - Friederike Jönsson
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; INSERM, U1222, Paris, France.
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39
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Moreira V, Teixeira C, Borges da Silva H, D'Império Lima MR, Dos-Santos MC. The role of TLR2 in the acute inflammatory response induced by Bothrops atrox snake venom. Toxicon 2016; 118:121-8. [PMID: 27109323 DOI: 10.1016/j.toxicon.2016.04.042] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 04/16/2016] [Accepted: 04/20/2016] [Indexed: 01/04/2023]
Abstract
Envenomation by snakes of the species Bothrops atrox induces local and systemic effects. Local effects include drastic tissue damage and a marked inflammatory response as a result of the synthesis and release of a variety of protein and lipid mediators. Toll-like receptor (TLR) signaling pathways can play an important role in this response, leading to synthesis of these inflammatory mediators. This study investigated the influence of TLR2 on the acute inflammatory response induced by Bothrops atrox venom. Wild-type C57BL/6 mice (WT) and TLR2 gene knockout mice (TLR2(-/-)) were injected with Bothrops atrox venom (BaV), and the following responses to the venom were assessed in peritoneal exudate: leukocyte accumulation; release of mediators, including CCL-2, IL-10, IL-1β, IL-6 and LTB4; protein expression of COX-1 and COX-2; and quantification of their products PGE2 and TXA2. After injection with BaV, the TLR2(-/-) mice (TLR2(-/-)BaV) had higher levels of IL-6 and CCL-2 than WT animals kept under the same conditions (WTBaV), together with an accumulation of polymorphonuclear leukocytes (PMNs), inhibition of IL-1β and LTB4 and reduced mononuclear leukocyte influx. However, no significant differences in COX-2 protein expression or PGE2, TXA2 and IL-10 production between the TLR2(-/-)BaV and WTBav animals were observed. Together, these results indicate that the signaling pathway activated by TLR2 acts by modulating the induced inflammatory response to BaV through the direct action of venom-associated molecular patterns (VAMPs) or indirectly by forming damage-associated molecular patterns (DAMPs) and that this may have important therapeutic implications.
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Affiliation(s)
- Vanessa Moreira
- Pharmacology Laboratory, Butantan Institute, São Paulo, SP, Brazil
| | | | - Henrique Borges da Silva
- Immunology Department, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | | | - Maria Cristina Dos-Santos
- Immunochemistry Laboratory, Parasitology Department, Institute of Biological Sciences, Federal University of Amazonas, Manaus, AM, Brazil.
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Tutt AL, James S, Laversin SA, Tipton TRW, Ashton-Key M, French RR, Hussain K, Vaughan AT, Dou L, Earley A, Dahal LN, Lu C, Dunscombe M, Chan HTC, Penfold CA, Kim JH, Potter EA, Mockridge CI, Roghanian A, Oldham RJ, Cox KL, Lim SH, Teige I, Frendéus B, Glennie MJ, Beers SA, Cragg MS. Development and Characterization of Monoclonal Antibodies Specific for Mouse and Human Fcγ Receptors. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2015; 195:5503-16. [PMID: 26512139 DOI: 10.4049/jimmunol.1402988] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 09/30/2015] [Indexed: 11/19/2022]
Abstract
FcγRs are key regulators of the immune response, capable of binding to the Fc portion of IgG Abs and manipulating the behavior of numerous cell types. Through a variety of receptors, isoforms, and cellular expression patterns, they are able to fine-tune and direct appropriate responses. Furthermore, they are key determinants of mAb immunotherapy, with mAb isotype and FcγR interaction governing therapeutic efficacy. Critical to understanding the biology of this complex family of receptors are reagents that are robust and highly specific for each receptor. In this study, we describe the development and characterization of mAb panels specific for both mouse and human FcγR for use in flow cytometry, immunofluorescence, and immunocytochemistry. We highlight key differences in expression between the two species and also patterns of expression that will likely impact on immunotherapeutic efficacy and translation of therapeutic agents from mouse to clinic.
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Affiliation(s)
- Alison L Tutt
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Sonya James
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Stéphanie A Laversin
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Thomas R W Tipton
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Margaret Ashton-Key
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Ruth R French
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Khiyam Hussain
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Andrew T Vaughan
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Lang Dou
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Alexander Earley
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Lekh N Dahal
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Chen Lu
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Melanie Dunscombe
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - H T Claude Chan
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Christine A Penfold
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Jinny H Kim
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Elizabeth A Potter
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - C Ian Mockridge
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Ali Roghanian
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Robert J Oldham
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Kerry L Cox
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Sean H Lim
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | | | | | - Martin J Glennie
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Stephen A Beers
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
| | - Mark S Cragg
- Antibody and Vaccine Group, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, Hampshire SO16 6YD, United Kingdom; and
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Evans H, Killoran KE, Mitre BK, Morris CP, Kim SY, Mitre E. Ten Weeks of Infection with a Tissue-Invasive Helminth Protects against Local Immune Complex-Mediated Inflammation, but Not Cutaneous Type I Hypersensitivity, in Previously Sensitized Mice. THE JOURNAL OF IMMUNOLOGY 2015; 195:2973-84. [PMID: 26324775 DOI: 10.4049/jimmunol.1500081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 07/29/2015] [Indexed: 11/19/2022]
Abstract
In this study, we evaluated the effect chronic helminth infection has on allergic disease in mice previously sensitized to OVA. Ten weeks of infection with Litomosoides sigmodontis reduced immunological markers of type I hypersensitivity, including OVA-specific IgE, basophil activation, and mast cell degranulation. Despite these reductions, there was no protection against immediate clinical hypersensitivity following intradermal OVA challenge. However, late-phase ear swelling, due to type III hypersensitivity, was significantly reduced in chronically infected animals. Levels of total IgG2a, OVA-specific IgG2a, and OVA-specific IgG1 were reduced in the setting of infection. These reductions were most likely due to increased Ab catabolism as ELISPOT assays demonstrated that infected animals do not have suppressed Ab production. Ear histology 24 h after challenge showed infected animals have reduced cellular infiltration in the ear, with significant decreases in numbers of neutrophils and macrophages. Consistent with this, infected animals had less neutrophil-specific chemokines CXCL-1 and CXCL-2 in the ear following challenge. Additionally, in vitro stimulation with immune complexes resulted in significantly less CXCL-1 and CXCL-2 production by eosinophils from chronically infected mice. Expression of FcγRI was also significantly reduced on eosinophils from infected animals. These data indicate that chronic filarial infection suppresses eosinophilic responses to Ab-mediated activation and has the potential to be used as a therapeutic for pre-existing hypersensitivity diseases.
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Affiliation(s)
- Holly Evans
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD 20814
| | | | - Blima K Mitre
- Department of Pathology, University of Pittsburgh Medical Center Passavant Hospital, Pittsburgh, PA 15213; and
| | - C Paul Morris
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD 20814; National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - So-Young Kim
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD 20814
| | - Edward Mitre
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD 20814;
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Turbica I, Gallais Y, Gueguen C, Tharinger H, Al Sabbagh C, Gorges R, Gary-Gouy H, Kerdine-Ro¨mer S, Pallardy M, Mascarell L, Gleizes A, Chollet-Martin S. Ectosomes from neutrophil-like cells down-regulate nickel-induced dendritic cell maturation and promote Th2 polarization. J Leukoc Biol 2015; 97:737-49. [DOI: 10.1189/jlb.3a0314-132rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Antigenic modulation limits the effector cell mechanisms employed by type I anti-CD20 monoclonal antibodies. Blood 2015; 125:1901-9. [PMID: 25631769 DOI: 10.1182/blood-2014-07-588376] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Following the success of rituximab, 2 other anti-CD20 monoclonal antibodies (mAbs), ofatumumab and obinutuzumab, have entered clinical use. Ofatumumab has enhanced capacity for complement-dependent cytotoxicity, whereas obinutuzumab, a type II mAb, lacks the ability to redistribute into lipid rafts and is glycoengineered for augmented antibody-dependent cellular cytotoxicity (ADCC). We previously showed that type I mAbs such as rituximab have a propensity to undergo enhanced antigenic modulation compared with type II. Here we assessed the key effector mechanisms affected, comparing type I and II antibodies of various isotypes in ADCC and antibody-dependent cellular-phagocytosis (ADCP) assays. Rituximab and ofatumumab depleted both normal and leukemic human CD20-expressing B cells in the mouse less effectively than glycoengineered and wild-type forms of obinutuzumab, particularly when human immunoglobulin G1 (hIgG1) mAbs were compared. In contrast to mouse IgG2a, hIgG1 mAbs were ineffective in ADCC assays with murine natural killer cells as effectors, whereas ADCP was equivalent for mouse IgG2a and hIgG1. However, rituximab's ability to elicit both ADCC and ADCP was reduced by antigenic modulation, whereas type II antibodies remained unaffected. These data demonstrate that ADCP and ADCC are impaired by antigenic modulation and that ADCP is the main effector function employed in vivo.
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Santos EOL, Azzolini AECS, Lucisano-Valim YM. Optimization of a flow cytometric assay to evaluate the human neutrophil ability to phagocytose immune complexes via Fcγ and complement receptors. J Pharmacol Toxicol Methods 2014; 72:67-71. [PMID: 25450839 DOI: 10.1016/j.vascn.2014.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 11/19/2022]
Abstract
INTRODUCTION This study aims to optimize some experimental conditions of a flow cytometric assay to examine the human neutrophil ability to phagocytose immune complexes (ICs) via Fcγ and complement receptors (FcγR and CR, respectively). The parameters assessed were: number of cells, concentration of ICs, reaction time, pH and concentration of the Trypan Blue quenching solution. METHODS Neutrophils were isolated from peripheral blood of healthy volunteers. Precipitated ICs composed of IgG and fluorescein isothiocyanate (FITC)-labeled ovalbumin, opsonized or not with serum complement, were used to trigger the neutrophil phagocytosis via FcγR, CR, and FcγR+CR. Fluorescence of the internalized ICs was measured by flow cytometry, after quenching the extracellular fluorescence with Trypan Blue. RESULTS The optimal experimental conditions established for the phagocytosis assay were: 1 × 10(6) cells mL(-1) and 40 μg mL(-1) FITC-labeled ICs, incubated for 30 min, at 37°C, in 0.5 mL of reaction volume. Trypan Blue solution at 1.25 mg mL(-1) pH4.4 was the best fluorescence quencher of FITC-labeled ICs attached to the outer surface of neutrophils. DISCUSSION The selected experimental conditions were viable to evaluate IC phagocytosis by neutrophils; they are also suitable to compare the efficiency of IC phagocytosis mediated by FcγR and CR classes of membrane receptors, alone or in combination. This method finds application in studies of (i) the receptor-specific phagocytic function of normal and pathogenic neutrophils as well as (ii) the impact of drugs and therapies on this essential effector function of neutrophils.
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Affiliation(s)
- Everton O L Santos
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto da Universidade de São Paulo, Avenida do Café s/n, Ribeirão Preto, SP 14040-903, Brazil; Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, SP 14049-900, Brazil
| | - Ana Elisa C S Azzolini
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto da Universidade de São Paulo, Avenida do Café s/n, Ribeirão Preto, SP 14040-903, Brazil
| | - Yara M Lucisano-Valim
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto da Universidade de São Paulo, Avenida do Café s/n, Ribeirão Preto, SP 14040-903, Brazil.
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Gibson-Corley KN, Bockenstedt MM, Li H, Boggiatto PM, Phanse Y, Petersen CA, Bellaire BH, Jones DE. An in vitro model of antibody-enhanced killing of the intracellular parasite Leishmania amazonensis. PLoS One 2014; 9:e106426. [PMID: 25191842 PMCID: PMC4156363 DOI: 10.1371/journal.pone.0106426] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 07/30/2014] [Indexed: 11/21/2022] Open
Abstract
Footpad infection of C3HeB/FeJ mice with Leishmania amazonensis leads to chronic lesions accompanied by large parasite loads. Co-infecting these animals with L. major leads to induction of an effective Th1 immune response that can resolve these lesions. This cross-protection can be recapitulated in vitro by using immune cells from L. major-infected animals to effectively activate L. amazonensis-infected macrophages to kill the parasite. We have shown previously that the B cell population and their IgG2a antibodies are required for effective cross-protection. Here we demonstrate that, in contrast to L. major, killing L. amazonensis parasites is dependent upon FcRγ common-chain and NADPH oxidase-generated superoxide from infected macrophages. Superoxide production coincided with killing of L. amazonensis at five days post-activation, suggesting that opsonization of the parasites was not a likely mechanism of the antibody response. Therefore we tested the hypothesis that non-specific immune complexes could provide a mechanism of FcRγ common-chain/NADPH oxidase dependent parasite killing. Macrophage activation in response to soluble IgG2a immune complexes, IFN-γ and parasite antigen was effective in significantly reducing the percentage of macrophages infected with L. amazonensis. These results define a host protection mechanism effective during Leishmania infection and demonstrate for the first time a novel means by which IgG antibodies can enhance killing of an intracellular pathogen.
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Affiliation(s)
- Katherine N. Gibson-Corley
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Marie M. Bockenstedt
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Huijuan Li
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Paola M. Boggiatto
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Yashdeep Phanse
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Christine A. Petersen
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Bryan H. Bellaire
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Douglas E. Jones
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
- * E-mail:
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Bengtsson AA, Pettersson Å, Wichert S, Gullstrand B, Hansson M, Hellmark T, Johansson ÅCM. Low production of reactive oxygen species in granulocytes is associated with organ damage in systemic lupus erythematosus. Arthritis Res Ther 2014; 16:R120. [PMID: 24902963 PMCID: PMC4075132 DOI: 10.1186/ar4575] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 05/29/2014] [Indexed: 12/17/2022] Open
Abstract
Introduction Polymorphonuclear leukocytes (PMN) are main effector cells in the acute immune response. While the specific role of PMN in systemic lupus erythematosus (SLE) and autoimmunity is still unclear, their importance in chronic inflammation is gaining more attention. Here we investigate aspects of function, bone marrow release and activation of PMN in patients with SLE. Methods The following PMN functions and subsets were evaluated using flow cytometry; (a) production of reactive oxygen species (ROS) after ex vivo stimulation with phorbol 12-myristate 13-acetate (PMA) or Escherichia coli (E. coli); (b) capacity to phagocytose antibody-coated necrotic cell material; (c) PMN recently released from bone marrow, defined as percentage of CD10−D16low in peripheral blood, and (d) PMN activation markers; CD11b, CD62L and C5aR. Results SLE patients (n = 92) showed lower ROS production compared with healthy controls (n = 38) after activation ex vivo. The ROS production was not associated with corticosteroid dose or other immunotherapies. PMA induced ROS production was significantly reduced in patients with severe disease. In contrast, neither ROS levels after E. coli activation, nor the capacity to phagocytose were associated with disease severity. This suggests that decreased ROS production after PMA activation is a sign of changed PMN behaviour rather than generally impaired functions. The CD10−CD16low phenotype constitute 2% of PMN in peripheral blood of SLE patients compared with 6.4% in controls, indicating a decreased release of PMN from the bone marrow in SLE. A decreased expression of C5aR on PMN was observed in SLE patients, pointing towards in vivo activation. Conclusions Our results indicate that PMN from SLE patients have altered function, are partly activated and are released abnormally from bone marrow. The association between low ROS formation in PMN and disease severity is consistent with findings in other autoimmune diseases and might be considered as a risk factor.
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White AL, Beers SA, Cragg MS. FcγRIIB as a key determinant of agonistic antibody efficacy. Curr Top Microbiol Immunol 2014; 382:355-72. [PMID: 25116108 DOI: 10.1007/978-3-319-07911-0_16] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Fc gamma Receptor (FcγR) IIB (CD32B) is an immunoreceptor tyrosine inhibitory motif (ITIM)-bearing Fc receptor that is involved in abrogating the signalling and function delivered from other receptors; archetypally those arising from other, activatory, FcγR and from the B cell receptor (BCR) for antigen. In the context of immunotherapy, it has convincingly been shown to limit a variety of clinically important therapeutic monoclonal antibodies (mAb) such as rituximab and trastuzumab in preclinical models. However, recent exploration of so-called immunomodulatory mAb, for example agonist mAb directed against various members of the TNFR super-family, has cast new light on the ability of FcγRIIB to regulate immune responses and immunotherapy. These data, accumulated by several independent groups, have shown the seemingly paradoxical ability of FcγRIIB to augment or even be absolutely required for the activity of this class of mAb. In this review we highlight the key role of FcγRIIB in regulating agonistic mAb, detail the likely mechanism of action and propose new ways in which this information may be exploited therapeutically.
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Affiliation(s)
- Ann L White
- Cancer Sciences Unit, Antibody and Vaccine Group (MP88), Faculty of Medicine, Southampton University, Tremona Road, Southampton, SO16 6YD, UK
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Sabbione F, Gabelloni ML, Ernst G, Gori MS, Salamone G, Oleastro M, Trevani A, Geffner J, Jancic CC. Neutrophils suppress γδ T-cell function. Eur J Immunol 2013; 44:819-30. [DOI: 10.1002/eji.201343664] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 10/09/2013] [Accepted: 11/20/2013] [Indexed: 12/16/2022]
Affiliation(s)
- Florencia Sabbione
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina; Buenos Aires Argentina
| | - María L. Gabelloni
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina; Buenos Aires Argentina
| | - Glenda Ernst
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS); Buenos Aires Argentina
| | - María S. Gori
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina; Buenos Aires Argentina
| | - Gabriela Salamone
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina; Buenos Aires Argentina
- Departamento de Microbiología; Parasitología e Inmunología; Facultad de Medicina; Universidad de Buenos Aires; Buenos Aires Argentina
| | - Matías Oleastro
- Hospital Nacional de Pediatría “Juan P. Garrahan”; Buenos Aires Argentina
| | - Analía Trevani
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina; Buenos Aires Argentina
- Departamento de Microbiología; Parasitología e Inmunología; Facultad de Medicina; Universidad de Buenos Aires; Buenos Aires Argentina
| | - Jorge Geffner
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS); Buenos Aires Argentina
- Departamento de Microbiología; Parasitología e Inmunología; Facultad de Medicina; Universidad de Buenos Aires; Buenos Aires Argentina
| | - Carolina C. Jancic
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina; Buenos Aires Argentina
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Glycoengineered CD20 antibody obinutuzumab activates neutrophils and mediates phagocytosis through CD16B more efficiently than rituximab. Blood 2013; 122:3482-91. [PMID: 24106207 DOI: 10.1182/blood-2013-05-504043] [Citation(s) in RCA: 176] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Key Points
Phagocytosis of CLL targets by neutrophils is a novel mechanism of action of the glycoengineered anti-CD20 antibody obinutuzumab. This mechanism takes place in physiological conditions and requires CD16B and CD32A.
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