1
|
Jin G, Liu Y, Wang L, He Z, Zhao X, Ma Y, Jia Y, Li Z, Yin N, Peng M. A single infusion of engineered long-lived and multifunctional T cells confers durable remission of asthma in mice. Nat Immunol 2024; 25:1059-1072. [PMID: 38802511 DOI: 10.1038/s41590-024-01834-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 04/06/2024] [Indexed: 05/29/2024]
Abstract
Asthma, the most prevalent respiratory disease, affects more than 300 million people and causes more than 250,000 deaths annually. Type 2-high asthma is characterized by interleukin (IL)-5-driven eosinophilia, along with airway inflammation and remodeling caused by IL-4 and IL-13. Here we utilize IL-5 as the targeting domain and deplete BCOR and ZC3H12A to engineer long-lived chimeric antigen receptor (CAR) T cells that can eradicate eosinophils. We call these cells immortal-like and functional IL-5 CAR T cells (5TIF) cells. 5TIF cells were further modified to secrete an IL-4 mutein that blocks IL-4 and IL-13 signaling, designated as 5TIF4 cells. In asthma models, a single infusion of 5TIF4 cells in fully immunocompetent mice, without any conditioning regimen, led to sustained repression of lung inflammation and alleviation of asthmatic symptoms. These data show that asthma, a common chronic disease, can be pushed into long-term remission with a single dose of long-lived CAR T cells.
Collapse
Affiliation(s)
- Gang Jin
- State Key Laboratory of Molecular Oncology, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, School of Basic Medical Sciences, Tsinghua University, Beijing, China
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Yanyan Liu
- State Key Laboratory of Molecular Oncology, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, School of Basic Medical Sciences, Tsinghua University, Beijing, China
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Lixia Wang
- State Key Laboratory of Molecular Oncology, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, School of Basic Medical Sciences, Tsinghua University, Beijing, China
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Zihao He
- State Key Laboratory of Molecular Oncology, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, School of Basic Medical Sciences, Tsinghua University, Beijing, China
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Xiaocui Zhao
- State Key Laboratory of Molecular Oncology, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, School of Basic Medical Sciences, Tsinghua University, Beijing, China
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Yuying Ma
- State Key Laboratory of Molecular Oncology, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, School of Basic Medical Sciences, Tsinghua University, Beijing, China
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Yuting Jia
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China
| | - Zhuoyang Li
- State Key Laboratory of Molecular Oncology, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, School of Basic Medical Sciences, Tsinghua University, Beijing, China
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Na Yin
- State Key Laboratory of Molecular Oncology, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, School of Basic Medical Sciences, Tsinghua University, Beijing, China
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Min Peng
- State Key Laboratory of Molecular Oncology, Institute for Immunology, Beijing Key Laboratory for Immunological Research on Chronic Diseases, School of Basic Medical Sciences, Tsinghua University, Beijing, China.
- SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, China.
- Tsinghua-Peking Center for Life Sciences, Beijing, China.
| |
Collapse
|
2
|
Gigon L, Müller P, Haenni B, Iacovache I, Barbo M, Gosheva G, Yousefi S, Soragni A, von Ballmoos C, Zuber B, Simon HU. Membrane damage by MBP-1 is mediated by pore formation and amplified by mtDNA. Cell Rep 2024; 43:114084. [PMID: 38583154 DOI: 10.1016/j.celrep.2024.114084] [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: 10/06/2023] [Revised: 12/28/2023] [Accepted: 03/25/2024] [Indexed: 04/09/2024] Open
Abstract
Eosinophils play a crucial role in host defense while also contributing to immunopathology through the release of inflammatory mediators. Characterized by distinctive cytoplasmic granules, eosinophils securely store and rapidly release various proteins exhibiting high toxicity upon extracellular release. Among these, major basic protein 1 (MBP-1) emerges as an important mediator in eosinophil function against pathogens and in eosinophil-associated diseases. While MBP-1 targets both microorganisms and host cells, its precise mechanism remains elusive. We demonstrate that formation of small pores by MBP-1 in lipid bilayers induces membrane permeabilization and disrupts potassium balance. Additionally, we reveal that mitochondrial DNA (mtDNA) present in eosinophil extracellular traps (EETs) amplifies MBP-1 toxic effects, underscoring the pivotal role of mtDNA in EETs. Furthermore, we present evidence indicating that absence of CpG methylation in mtDNA contributes to the regulation of MBP-1-mediated toxicity. Taken together, our data suggest that the mtDNA scaffold within extracellular traps promotes MBP-1 toxicity.
Collapse
Affiliation(s)
- Lea Gigon
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Philipp Müller
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland
| | - Beat Haenni
- Institute of Anatomy, University of Bern, 3012 Bern, Switzerland
| | - Ioan Iacovache
- Institute of Anatomy, University of Bern, 3012 Bern, Switzerland
| | - Maruša Barbo
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland; Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Gordana Gosheva
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland; Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Alice Soragni
- Department of Orthopedic Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Christoph von Ballmoos
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland
| | - Benoît Zuber
- Institute of Anatomy, University of Bern, 3012 Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland; Institute of Biochemistry, Brandenburg Medical School, 16816 Neuruppin, Germany.
| |
Collapse
|
3
|
First NJ, Parrish KM, Martínez-Pérez A, González-Fernández Á, Bharrhan S, Woolard M, McLachlan JB, Scott RS, Wang J, Gestal MC. Bordetella spp. block eosinophil recruitment to suppress the generation of early mucosal protection. Cell Rep 2023; 42:113294. [PMID: 37883230 DOI: 10.1016/j.celrep.2023.113294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/21/2023] [Accepted: 09/29/2023] [Indexed: 10/28/2023] Open
Abstract
Bordetella spp. are respiratory pathogens equipped with immune evasion mechanisms. We previously characterized a Bordetella bronchiseptica mutant (RB50ΔbtrS) that fails to suppress host responses, leading to rapid clearance and long-lasting immunity against reinfection. This work revealed eosinophils as an exclusive requirement for RB50ΔbtrS clearance. We also show that RB50ΔbtrS promotes eosinophil-mediated B/T cell recruitment and inducible bronchus-associated lymphoid tissue (iBALT) formation, with eosinophils being present throughout iBALT for Th17 and immunoglobulin A (IgA) responses. Finally, we provide evidence that XCL1 is critical for iBALT formation but not maintenance, proposing a novel role for eosinophils as facilitators of adaptive immunity against B. bronchiseptica. RB50ΔbtrS being incapable of suppressing eosinophil effector functions illuminates active, bacterial targeting of eosinophils to achieve successful persistence and reinfection. Overall, our discoveries contribute to understanding cellular mechanisms for use in future vaccines and therapies against Bordetella spp. and extension to other mucosal pathogens.
Collapse
Affiliation(s)
- Nicholas J First
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA
| | - Katelyn M Parrish
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA
| | - Amparo Martínez-Pérez
- CINBIO, Universidade de Vigo, Immunology Group, Instituto de Investigación Sanitaria Galicia Sur (IIS Galicia Sur), SERGAS-UVIGO, 36310 Vigo, Galicia, Spain
| | - África González-Fernández
- CINBIO, Universidade de Vigo, Immunology Group, Instituto de Investigación Sanitaria Galicia Sur (IIS Galicia Sur), SERGAS-UVIGO, 36310 Vigo, Galicia, Spain
| | - Sushma Bharrhan
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA; Immunophenotyping Core, Center for Applied Immunology and Pathological Processes, Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA
| | - Matthew Woolard
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA; Immunophenotyping Core, Center for Applied Immunology and Pathological Processes, Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA
| | - James B McLachlan
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Rona S Scott
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA; Bioinformatics and Modeling Core, Center for Applied Immunology and Pathological Processes, Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA
| | - Jian Wang
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA; Bioinformatics and Modeling Core, Center for Applied Immunology and Pathological Processes, Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA
| | - Monica C Gestal
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71106, USA.
| |
Collapse
|
4
|
Araie H, Hosono N, Tsujikawa T, Kiyono Y, Okazawa H, Yamauchi T. Hematopoiesis in the spleen after engraftment in unrelated cord blood transplantation evaluated by 18F-FLT PET imaging. Int J Hematol 2023; 118:618-626. [PMID: 37782417 PMCID: PMC10615934 DOI: 10.1007/s12185-023-03658-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 10/03/2023]
Abstract
Cord blood is an important donor source for allogeneic hematopoietic stem cell transplantation (allo-HSCT), with its unique composition and quality of hematopoietic cells. The proliferation site and potency of infused hematopoietic stem cells in humans may vary between stem cell sources. We investigated this possibility in a prospective, exploratory study to assess hematopoietic dynamics using the radiopharmaceutical 3'-deoxy-3'-18F-fluorothymidine (18F-FLT), a thymidine analog used in positron emission tomography imaging, before allo-HSCT and on days 50 and 180 after allo-HSCT. We evaluated 11 patients with hematological malignancies who underwent allo-HSCT [five with peripheral blood stem cell transplantation (PBSCT) and six with unrelated cord blood transplantation (UCBT)]. Before allo-HSCT, 18F-FLT uptake did not differ between the two groups. At day 50, 18F-FLT uptake in the spleen was significantly greater in the UCBT group than in the PBSCT group (p = 0.0043), with no difference in whole-body bone marrow. At day 180, the differences in spleen uptake had diminished, and there were no differences between groups in whole-body bone marrow or the spleen, except for the sternum. The persistence of splenic hematopoiesis after engraftment in the UCBT group may reflect the complex systemic homing and proliferation mechanisms of cord blood hematopoietic cells.
Collapse
Affiliation(s)
- Hiroaki Araie
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
| | - Naoko Hosono
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan.
| | - Tetsuya Tsujikawa
- Department of Radiology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Yasushi Kiyono
- Biomedical Imaging Research Center, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Hidehiko Okazawa
- Biomedical Imaging Research Center, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Takahiro Yamauchi
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
| |
Collapse
|
5
|
Todd JL, Weber JM, Kelly FL, Neely ML, Mulder H, Frankel CW, Nagler A, McCrae C, Newbold P, Kreindler J, Palmer SM. BAL Fluid Eosinophilia Associates With Chronic Lung Allograft Dysfunction Risk: A Multicenter Study. Chest 2023; 164:670-681. [PMID: 37003354 PMCID: PMC10548454 DOI: 10.1016/j.chest.2023.03.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 04/03/2023] Open
Abstract
BACKGROUND Chronic lung allograft dysfunction (CLAD) is the leading cause of death among lung transplant recipients. Eosinophils, effector cells of type 2 immunity, are implicated in the pathobiology of many lung diseases, and prior studies suggest their presence associates with acute rejection or CLAD after lung transplantation. RESEARCH QUESTION Does histologic allograft injury or respiratory microbiology correlate with the presence of eosinophils in BAL fluid (BALF)? Does early posttransplant BALF eosinophilia associate with future CLAD development, including after adjustment for other known risk factors? STUDY DESIGN AND METHODS We analyzed BALF cell count, microbiology, and biopsy data from a multicenter cohort of 531 lung recipients with 2,592 bronchoscopies over the first posttransplant year. Generalized estimating equation models were used to examine the correlation of allograft histology or BALF microbiology with the presence of BALF eosinophils. Multivariable Cox regression was used to determine the association between ≥ 1% BALF eosinophils in the first posttransplant year and definite CLAD. Expression of eosinophil-relevant genes was quantified in CLAD and transplant control tissues. RESULTS The odds of BALF eosinophils being present was significantly higher at the time of acute rejection and nonrejection lung injury histologies and during pulmonary fungal detection. Early posttransplant ≥ 1% BALF eosinophils significantly and independently increased the risk for definite CLAD development (adjusted hazard ratio, 2.04; P = .009). Tissue expression of eotaxins, IL-13-related genes, and the epithelial-derived cytokines IL-33 and thymic stromal lymphoprotein were significantly increased in CLAD. INTERPRETATION BALF eosinophilia was an independent predictor of future CLAD risk across a multicenter lung recipient cohort. Additionally, type 2 inflammatory signals were induced in established CLAD. These data underscore the need for mechanistic and clinical studies to clarify the role of type 2 pathway-specific interventions in CLAD prevention or treatment.
Collapse
Affiliation(s)
- Jamie L Todd
- Department of Medicine, Duke University Medical Center, Durham, NC; Duke Clinical Research Institute, Durham, NC.
| | | | - Francine L Kelly
- Department of Medicine, Duke University Medical Center, Durham, NC
| | - Megan L Neely
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC
| | | | | | - Andrew Nagler
- Department of Medicine, Duke University Medical Center, Durham, NC
| | - Christopher McCrae
- Translational Science & Experimental Medicine, Early Respiratory & Immunology, AstraZeneca, Gaithersburg, MD
| | | | | | - Scott M Palmer
- Department of Medicine, Duke University Medical Center, Durham, NC; Duke Clinical Research Institute, Durham, NC
| |
Collapse
|
6
|
Ghaffari S, Rezaei N. Eosinophils in the tumor microenvironment: implications for cancer immunotherapy. J Transl Med 2023; 21:551. [PMID: 37587450 PMCID: PMC10433623 DOI: 10.1186/s12967-023-04418-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 08/05/2023] [Indexed: 08/18/2023] Open
Abstract
Despite being an integral part of the immune response in the tumor microenvironment (TME), few studies have mechanistically elucidated eosinophil functions in cancer outcomes. Eosinophils are a minor population of granulocytes that are mostly explored in asthma and allergic disorders. Their influence on primary and metastatic tumors, however, has recently come to light. Eosinophils' diverse armamentarium of mediators and receptors allows them to participate in innate and adaptive immunity, such as type 1 and type 2 immunity, and shape TME and tumor outcomes. Based on TME cells and cytokines, activated eosinophils drive other immune cells to ultimately promote or suppress tumor growth. Discovering exactly what conditions determine the pro-tumorigenic or anti-tumorigenic role of eosinophils allows us to take advantage of these signals and devise novel strategies to target cancer cells. Here, we first revisit eosinophil biology and differentiation as recognizing eosinophil mediators is crucial to their function in homeostatic and pathological conditions as well as tumor outcome. The bulk of our paper discusses eosinophil interactions with tumor cells, immune cells-including T cells, plasma cells, natural killer (NK) cells-and gut microbiota. Eosinophil mediators, such as IL-5, IL-33, granulocyte-macrophage colony-stimulating factor (GM-CSF), thymic stromal lymphopoietin (TSLP), and CCL11 also determine eosinophil behavior toward tumor cells. We then examine the implications of these findings for cancer immunotherapy approaches, including immune checkpoint blockade (ICB) therapy using immune checkpoint inhibitors (ICIs) and chimeric antigen receptor (CAR) T cell therapy. Eosinophils synergize with CAR T cells and ICB therapy to augment immunotherapies.
Collapse
Affiliation(s)
- Sasan Ghaffari
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| |
Collapse
|
7
|
Shu T, Zhang J, Zhou Y, Chen Z, Li J, Tang Q, Lei W, Xing Y, Wang J, Wang C. Eosinophils protect against pulmonary hypertension through 14-HDHA and 17-HDHA. Eur Respir J 2023; 61:13993003.00582-2022. [PMID: 36423907 PMCID: PMC9978164 DOI: 10.1183/13993003.00582-2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 10/22/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Pulmonary hypertension (PH) is a life-threatening disease featuring pulmonary vessel remodelling and perivascular inflammation. The effect, if any, of eosinophils (EOS) on the development of PH remains unclear. METHODS EOS infiltration and chemotaxis were investigated in peripheral blood and lung tissues from pulmonary arterial hypertension (PAH) patients without allergic history and from sugen/hypoxia-induced PH mice. The role of EOS deficiency in PH development was investigated using GATA1-deletion (ΔdblGATA) mice and anti-interleukin 5 antibody-treated mice and rats. Ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) was conducted to identify the critical oxylipin molecule(s) produced by EOS. Culture supernatants and lysates of EOS were collected to explore the mechanisms in co-culture cell experiments. RESULTS There was a lower percentage of EOS in peripheral blood but higher infiltration in lung tissues from PAH patients and PH mice. PAH/PH lungs showed increased EOS-related chemokine expression, mainly C-C motif chemokine ligand 11 derived from adventitial fibroblasts. EOS deficiency aggravated PH in rodents, accompanied by increased neutrophil and monocyte/macrophage infiltration. EOS highly expressed arachidonate 15-lipoxygenase (ALOX15). 14-hydroxy docosahexaenoic acid (14-HDHA) and 17-HDHA were critical downstream oxylipins produced by EOS, which showed anti-inflammatory effects on recruitment of neutrophils and monocytes/macrophages through N-formyl peptide receptor 2. They also repressed pulmonary artery smooth muscle cell (PASMC) proliferation by activating peroxisome proliferator-activated receptor γ and blunting Stat3 phosphorylation. CONCLUSIONS In PH development without external stimuli, peripheral blood exhibits a low EOS level. EOS play a protective role by suppressing perivascular inflammation and maintaining PASMC homeostasis via 14/17-HDHA.
Collapse
Affiliation(s)
- Ting Shu
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Dept of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- These authors contributed equally to this manuscript
| | - Jiawei Zhang
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Dept of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- These authors contributed equally to this manuscript
| | - Yitian Zhou
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Dept of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- MD Program, Peking Union Medical College, Beijing, China
| | - Zhihua Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jinqiu Li
- State Key Laboratory of Medical Molecular Biology, Dept of Physiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Qihao Tang
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Dept of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wenqi Lei
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Dept of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yanjiang Xing
- State Key Laboratory of Medical Molecular Biology, Dept of Physiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- J. Wang and Y. Xing contributed equally to this article as lead authors and supervised the work
| | - Jing Wang
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Dept of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- J. Wang and Y. Xing contributed equally to this article as lead authors and supervised the work
| | - Chen Wang
- State Key Laboratory of Medical Molecular Biology, Haihe Laboratory of Cell Ecosystem, Dept of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- State Key Laboratory of Medical Molecular Biology, Dept of Physiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| |
Collapse
|
8
|
August A, Marichal T. Eosinophils and Lung Mucosal Antibody Production: Is Location the Key? Am J Respir Cell Mol Biol 2023; 68:124-126. [PMID: 36306503 PMCID: PMC9986563 DOI: 10.1165/rcmb.2022-0410ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Affiliation(s)
- Avery August
- Department of Microbiology & Immunology Cornell University Ithaca, New York
| | | |
Collapse
|
9
|
Cederberg RA, Franks SE, Wadsworth BJ, So A, Decotret LR, Hall MG, Shi R, Hughes MR, McNagny KM, Bennewith KL. Eosinophils Decrease Pulmonary Metastatic Mammary Tumor Growth. Front Oncol 2022; 12:841921. [PMID: 35756626 PMCID: PMC9213661 DOI: 10.3389/fonc.2022.841921] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
Metastatic breast cancer is challenging to effectively treat, highlighting the need for an improved understanding of host factors that influence metastatic tumor cell colonization and growth in distant tissues. The lungs are a common site of breast cancer metastasis and are host to a population of tissue-resident eosinophils. Eosinophils are granulocytic innate immune cells known for their prominent roles in allergy and Th2 immunity. Though their presence in solid tumors and metastases have been reported for decades, the influence of eosinophils on metastatic tumor growth in the lungs is unclear. We used transgenic mouse models characterized by elevated pulmonary eosinophils (IL5Tg mice) and eosinophil-deficiency (ΔdblGATA mice), as well as antibody-mediated depletion of eosinophils, to study the role of eosinophils in EO771 mammary tumor growth in the lungs. We found that IL5Tg mice exhibit reduced pulmonary metastatic colonization and decreased metastatic tumor burden compared to wild-type (WT) mice or eosinophil-deficient mice. Eosinophils co-cultured with tumor cells ex vivo produced peroxidase activity and induced tumor cell death, indicating that eosinophils are capable of releasing eosinophil peroxidase (EPX) and killing EO771 tumor cells. We found that lung eosinophils expressed phenotypic markers of activation during EO771 tumor growth in the lungs, and that metastatic growth was accelerated in eosinophil-deficient mice and in WT mice after immunological depletion of eosinophils. Our results highlight an important role for eosinophils in restricting mammary tumor cell growth in the lungs and support further work to determine whether strategies to trigger local eosinophil degranulation may decrease pulmonary metastatic growth.
Collapse
Affiliation(s)
- Rachel A Cederberg
- Integrative Oncology, BC Cancer, Vancouver, BC, Canada.,Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | | | - Brennan J Wadsworth
- Integrative Oncology, BC Cancer, Vancouver, BC, Canada.,Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Alvina So
- Integrative Oncology, BC Cancer, Vancouver, BC, Canada
| | - Lisa R Decotret
- Integrative Oncology, BC Cancer, Vancouver, BC, Canada.,Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Michael G Hall
- Integrative Oncology, BC Cancer, Vancouver, BC, Canada.,Interdisciplinary Oncology Program, University of British Columbia, Vancouver, BC, Canada
| | - Rocky Shi
- Integrative Oncology, BC Cancer, Vancouver, BC, Canada.,Interdisciplinary Oncology Program, University of British Columbia, Vancouver, BC, Canada
| | - Michael R Hughes
- Biomedical Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Kelly M McNagny
- Biomedical Research Centre, University of British Columbia, Vancouver, BC, Canada.,Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Kevin L Bennewith
- Integrative Oncology, BC Cancer, Vancouver, BC, Canada.,Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Interdisciplinary Oncology Program, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
10
|
Lauret S, Noel-Savina E, Prévot G, Guibert N, Reber L, Brouquières D, Didier A, Guilleminault L. Are serum immunoglobulin concentrations a predictive biomarker of response to anti-IL5/IL5Rα therapies? Respir Med Res 2022; 81:100882. [PMID: 34983012 DOI: 10.1016/j.resmer.2021.100882] [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: 06/30/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Approval of biologics has recently revolutionized T2 severe asthma management. However, predictive biomarkers remain highly needed to improve patient's selection. OBJECTIVE This study aims to determine whether serum immunoglobulins (Igs) levels might be predictive biomarkers of response to anti-interleukin-5 (IL5)/IL5Rα therapies. METHODS Severe asthma patients eligible for mepolizumab or benralizumab were included herein. Serum immunoglobulin quantification was performed at baseline before mepolizumab or benralizumab initiation. After a 6-month treatment of mepolizumab or benralizumab, patients presented a second serum immunoglobulin quantification. The treatment response was evaluated by the GETE (Global Evaluation of Treatment Effectiveness) score at 6 months. RESULTS A total of 50 patients were included. Median age was 56 [IQR 48.8-65.3] and 50% were females. Compared to baseline, a significant increase in IgG was observed at 6 months (9.2 [7.8-10.2] g/l vs 10.1 [8.8-11.1] g/l, p = 0.04). The area under the ROC curve was 0.58 [95%IC 0.40-0.77] for blood eosinophil count (p = 0.37), 0.75 [95%IC: 0.58-0.92] for serum IgG concentration (p = 0.009) for predicting the treatment response. According to the Youden index, serum IgG concentration ≥ 9.2 g/l predicts the response to anti-IL5 therapies with a sensitivity of 76.9% and a specificity of 75.7%. CONCLUSION Baseline serum IgG concentrations may be a useful tool to predict the response to anti-IL5/IL5Rα therapies but should be confirmed in larger clinical trials. Interestingly, anti-IL5/IL5Rα therapies are associated with a significant increase in serum IgG concentrations at 6 months.
Collapse
Affiliation(s)
- Simon Lauret
- Department of respiratory medicine, Toulouse University Hospital Centre, Toulouse, France
| | - Elise Noel-Savina
- Department of respiratory medicine, Toulouse University Hospital Centre, Toulouse, France
| | - Grégoire Prévot
- Department of respiratory medicine, Toulouse University Hospital Centre, Toulouse, France
| | - Nicolas Guibert
- Department of respiratory medicine, Toulouse University Hospital Centre, Toulouse, France
| | - Laurent Reber
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity),Inserm U1291, University of Toulouse, CNRS U5282
| | - Danièle Brouquières
- Department of respiratory medicine, Toulouse University Hospital Centre, Toulouse, France
| | - Alain Didier
- Department of respiratory medicine, Toulouse University Hospital Centre, Toulouse, France; Toulouse Institute for Infectious and Inflammatory Diseases (Infinity),Inserm U1291, University of Toulouse, CNRS U5282
| | - Laurent Guilleminault
- Department of respiratory medicine, Toulouse University Hospital Centre, Toulouse, France; Toulouse Institute for Infectious and Inflammatory Diseases (Infinity),Inserm U1291, University of Toulouse, CNRS U5282.
| |
Collapse
|
11
|
Carmen JM, Shrivastava S, Lu Z, Anderson A, Morrison EB, Sankhala RS, Chen WH, Chang WC, Bolton JS, Matyas GR, Michael NL, Joyce MG, Modjarrad K, Currier JR, Bergmann-Leitner E, Malloy AMW, Rao M. SARS-CoV-2 ferritin nanoparticle vaccine induces robust innate immune activity driving polyfunctional spike-specific T cell responses. NPJ Vaccines 2021; 6:151. [PMID: 34903722 PMCID: PMC8668928 DOI: 10.1038/s41541-021-00414-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 11/09/2021] [Indexed: 12/23/2022] Open
Abstract
The emergence of variants of concern, some with reduced susceptibility to COVID-19 vaccines underscores consideration for the understanding of vaccine design that optimizes induction of effective cellular and humoral immune responses. We assessed a SARS-CoV-2 spike-ferritin nanoparticle (SpFN) immunogen paired with two distinct adjuvants, Alhydrogel® or Army Liposome Formulation containing QS-21 (ALFQ) for unique vaccine evoked immune signatures. Recruitment of highly activated multifaceted antigen-presenting cells to the lymph nodes of SpFN+ALFQ vaccinated mice was associated with an increased frequency of polyfunctional spike-specific memory CD4+ T cells and Kb spike-(539-546)-specific long-lived memory CD8+ T cells with effective cytolytic function and distribution to the lungs. The presence of this epitope in SARS-CoV, suggests that generation of cross-reactive T cells may be induced against other coronavirus strains. Our study reveals that a nanoparticle vaccine, combined with a potent adjuvant that effectively engages innate immune cells, enhances SARS-CoV-2-specific durable adaptive immune T cell responses.
Collapse
Affiliation(s)
- Joshua M Carmen
- Laboratory of Adjuvant and Antigen Research, US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Shikha Shrivastava
- Laboratory of Adjuvant and Antigen Research, US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
- US Military HIV Research Program, Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Zhongyan Lu
- Department of Pediatrics, F. Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Alexander Anderson
- Laboratory of Adjuvant and Antigen Research, US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
- Oak Ridge Institute of Science and Education, Oak Ridge, TN, USA
| | - Elaine B Morrison
- Laboratory of Adjuvant and Antigen Research, US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Rajeshwer S Sankhala
- Emerging Infectious Diseases Branch, Center of Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, USA
- Emerging Infectious Diseases Branch, Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Wei-Hung Chen
- Emerging Infectious Diseases Branch, Center of Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, USA
- Emerging Infectious Diseases Branch, Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - William C Chang
- Emerging Infectious Diseases Branch, Center of Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, USA
- Emerging Infectious Diseases Branch, Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Jessica S Bolton
- Malaria Biologics Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Gary R Matyas
- Laboratory of Adjuvant and Antigen Research, US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Nelson L Michael
- Center for Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - M Gordon Joyce
- Emerging Infectious Diseases Branch, Center of Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, USA
- Emerging Infectious Diseases Branch, Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Kayvon Modjarrad
- Emerging Infectious Diseases Branch, Center of Infectious Disease Research, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Jeffrey R Currier
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Elke Bergmann-Leitner
- Malaria Biologics Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Allison M W Malloy
- Department of Pediatrics, F. Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
| | - Mangala Rao
- Laboratory of Adjuvant and Antigen Research, US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA.
| |
Collapse
|
12
|
Utaiwat S, Senawong G, Khongsukwiwat K, Woranam K, Prompipak J, Sattayasai J, Senawong T. Stimulation of humoral and cell-mediated immunities in healthy and cyclophosphamide-induced immunosuppressed rats by the lyophilized Houttuynia cordata fermented drink. FOOD AGR IMMUNOL 2021. [DOI: 10.1080/09540105.2021.2003304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Suppawit Utaiwat
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Gulsiri Senawong
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Kanoknan Khongsukwiwat
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Khanutsanan Woranam
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Jeerati Prompipak
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Jintana Sattayasai
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Thanaset Senawong
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
- Natural Product Research Unit, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| |
Collapse
|
13
|
Komai T, Harada H, Takahashi H, Shoda H, Fujio K. Reduction of Myeloperoxidase-Antineutrophil Cytoplasmic Antibody by Mepolizumab in Eosinophilic Granulomatosis With Polyangiitis. J Clin Rheumatol 2021; 27:S806-S807. [PMID: 32568949 DOI: 10.1097/rhu.0000000000001453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Toshihiko Komai
- From the Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | | | | | | |
Collapse
|
14
|
Utaiwat S, Senawong G, Khongsukwiwat K, Woranam K, Sattayasai J, Senawong T. Immunomodulatory Potential of the Industrialized Houttuynia cordata Fermentation Product In Vitro and in Wistar Rats. Foods 2021; 10:foods10112582. [PMID: 34828862 PMCID: PMC8619134 DOI: 10.3390/foods10112582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
Houttuynia cordata fermentation products (HCFPs) are produced and widely used as dietary supplements for health and immune support. However, the effect on immune function for these products has not been clearly demonstrated. In this study, soluble fractions of the selected HCFP were used for determination of the immunomodulatory potential, both in vitro and in animal models. Viability and proliferation of rat splenocytes and phagocytic activity of human neutrophils were evaluated. Studies on immunomodulatory effects, including hematological parameters, mitogen-driven lymphocyte proliferation and hemagglutination, were performed in both healthy and immunosuppressed rats. Soluble fraction of the selected HCFP significantly enhanced phagocytic activity of human neutrophils and tended to stimulate splenocyte viability and proliferation. There was no morbidity or mortality for administration of a 14-day regimen of the selected HCFP in both male and female rats. The healthy rats treated with HCFP gained body weight less than the control group, suggesting a reduction in calorie intake. Moreover, low dose of HCFP caused an increased B cell proliferation in ex-vivo, which was related to the increased antibody titer against SRBC in immunosuppressed rats. Our results indicate that the selected HCFP enhances the phagocytic activity of the neutrophils and augments the antibody production in immunosuppressed rats.
Collapse
Affiliation(s)
- Suppawit Utaiwat
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (S.U.); (G.S.); (K.K.); (K.W.)
| | - Gulsiri Senawong
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (S.U.); (G.S.); (K.K.); (K.W.)
| | - Kanoknan Khongsukwiwat
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (S.U.); (G.S.); (K.K.); (K.W.)
| | - Khanutsanan Woranam
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (S.U.); (G.S.); (K.K.); (K.W.)
| | - Jintana Sattayasai
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Thanaset Senawong
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (S.U.); (G.S.); (K.K.); (K.W.)
- Natural Product Research Unit, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
- Correspondence:
| |
Collapse
|
15
|
Bettiol A, Urban ML, Dagna L, Cottin V, Franceschini F, Del Giacco S, Schiavon F, Neumann T, Lopalco G, Novikov P, Baldini C, Lombardi C, Berti A, Alberici F, Folci M, Negrini S, Sinico RA, Quartuccio L, Lunardi C, Parronchi P, Moosig F, Espígol-Frigolé G, Schroeder J, Kernder AL, Monti S, Silvagni E, Crimi C, Cinetto F, Fraticelli P, Roccatello D, Vacca A, Mohammad AJ, Hellmich B, Samson M, Bargagli E, Cohen Tervaert JW, Ribi C, Fiori D, Bello F, Fagni F, Moroni L, Ramirez GA, Nasser M, Marvisi C, Toniati P, Firinu D, Padoan R, Egan A, Seeliger B, Iannone F, Salvarani C, Jayne D, Prisco D, Vaglio A, Emmi G. Mepolizumab for Eosinophilic Granulomatosis with Polyangiitis (EGPA): a European multicenter observational study. ARTHRITIS & RHEUMATOLOGY (HOBOKEN, N.J.) 2021; 74:295-306. [PMID: 34347947 PMCID: PMC9305132 DOI: 10.1002/art.41943] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/18/2021] [Accepted: 07/29/2021] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Mepolizumab proved efficacious for eosinophilic granulomatosis with polyangiitis (EGPA, former Churg-Strauss) at the dosage of 300mg/4 weeks in the randomized controlled MIRRA trial. Few successful real-life experiences with the dosage approved for severe eosinophilic asthma (100mg/4 weeks) were recently reported. We retrospectively assessed the effectiveness and safety of mepolizumab 100 and 300mg/4 weeks in a large European EGPA cohort. METHODS We included all EGPA patients treated with mepolizumab at the recruiting centres in 2015-2020. Treatment response was evaluated from month 3 through 24 (T3-T24) after mepolizumab starting. Complete response (CR) was defined as no disease activity (Birmingham Vasculitis Activity Score, BVAS=0) and a prednisone dose ≤4mg/day. Respiratory outcomes included asthma and ear-nose-throat (ENT) exacerbations. RESULTS We included 203 patients, of whom 191 at stable dosage (158 mepolizumab 100mg/4 weeks, 33 300mg/4 weeks). At T3, 25 patients (12.3%) had a CR. CR rates increased to 30.4% and 35.7% at T12 and T24 and were comparable between mepolizumab 100 and 300mg/4 weeks. Mepolizumab led to a significant reduction in BVAS, prednisone dose, eosinophil counts from T3 through T24, with no significant differences between 100 and 300 mg/4weeks. Eighty-two patients (40.4%) experienced asthma exacerbations [57/158 (36%) on 100mg/4 weeks; 17/33 (52%) on 300mg/4 weeks]. Thirty-one (15.3%) experienced ENT exacerbations. Forty-four patients (21.7%) experienced adverse events, most being non-serious (38/44). CONCLUSION Mepolizumab both at 100 and 300mg/4 weeks is effective for EGPA. The two dosages should be compared in the setting of a controlled trial.
Collapse
Affiliation(s)
- Alessandra Bettiol
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Maria Letizia Urban
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Lorenzo Dagna
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Vincent Cottin
- Department of Respiratory Medicine, Hospices Civils de Lyon, University of Lyon, Lyon, France
| | - Franco Franceschini
- Rheumatology and Clinical Immunology Unit, ASST Spedali Civili of Brescia, Brescia, Italy.,Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Stefano Del Giacco
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Franco Schiavon
- Unit of Rheumatology, Department of Systems Medicine, Azienda Ospedaliera-Universitaria di Padova, Padova, Italy
| | - Thomas Neumann
- Department of Rheumatology and Immunology, Cantonal Hospital St, Gallen St, Gallen Switzerland.,Department of Internal Medicine III, Jena University Hospital, Jena, Germany
| | - Giuseppe Lopalco
- Rheumatology Unit, Department of Emergency and Organ Transplantation (DETO), Polyclinic Hospital, University of Bari, Bari, Italy
| | - Pavel Novikov
- Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow, Russia
| | | | - Carlo Lombardi
- Departmental Unit of Allergology-Clinical Immunology & Pneumology, Fondazione Poliambulanza Istituto Ospedaliero, Brescia
| | - Alvise Berti
- Santa Chiara Hospital, Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Trento, Italy
| | - Federico Alberici
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy.,Nephrology Unit, Spedali Civili Hospital, ASST Spedali Civili di Brescia, Brescia, Italy
| | - Marco Folci
- Humanitas Clinical and Research Center-IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Simone Negrini
- Internal Medicine, Clinical Immunology and Translational Medicine Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Centre of Excellence for Biomedical Research and Department of Internal Medicine, University of Genoa, Genoa, Italy
| | | | - Luca Quartuccio
- Department of Medicine, Rheumatology Clinic, University of Udine, ASUFC Udine, Udine, Italy
| | | | - Paola Parronchi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Frank Moosig
- Rheumazentrum Schleswig-Holstein Mitte, Neumünster, Germany
| | - Georgina Espígol-Frigolé
- Department of Autoimmune Diseases, Hospital Clínic, University of Barcelona, Barcelona, Spain.,Institut d'investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Jan Schroeder
- Unit of Allergy and Immunology, ASST GOM Niguarda, Milan, Italy
| | | | - Sara Monti
- Department of Rheumatology, IRCCS Policlinico S. Matteo Fondazione, University of Pavia, Pavia, Italy
| | - Ettore Silvagni
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Claudia Crimi
- Respiratory Medicine Unit, Policlinico-Vittorio Emanuele San Marco" University Hospital, Catania, Italy
| | | | - Paolo Fraticelli
- Department of Internal Medicine, University Hospital "Ospedali Riuniti", Ancona, Italy
| | - Dario Roccatello
- Nephrology and Dialysis Unit (ERKnet Member)-CMID, Center of Research of Immunopathology and Rare Diseases, San Giovanni Bosco Hospital and University of Turin, Turin, Italy
| | - Angelo Vacca
- Guido Baccelli Unit of Internal Medicine, Department of Biomedical Sciences and Human Oncology, School of Medicine, Aldo Moro University of Bari, Bari, Italy
| | - Aladdin J Mohammad
- Lund University, Department of Clinical Sciences Lund, Rheumatology, Skåne University Hospital, Lund, Sweden.,Department of Medicine, University of Cambridge, Cambridge, UK
| | - Bernhard Hellmich
- Klinik für Innere Medizin, Rheumatologie und Immunologie, Vaskulitiszentrum Süd, Medius Kliniken, University of Tübingen, Kirchheim unter Teck, Germany
| | - Maxime Samson
- Department of Internal Medicine and Clinical Immunology, Dijon University Hospital, Dijon, France
| | | | - Jan Willem Cohen Tervaert
- Division of Rheumatology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.,Maastricht University, Maastricht, Netherlands
| | - Camillo Ribi
- Division of Immunology and Allergy, University Hospital Center of Lausanne, Lausanne, Switzerland
| | - Davide Fiori
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Federica Bello
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Filippo Fagni
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Luca Moroni
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Giuseppe Alvise Ramirez
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Mouhamad Nasser
- Department of Respiratory Medicine, Hospices Civils de Lyon, University of Lyon, Lyon, France
| | - Chiara Marvisi
- Rheumatology Unit, Azienda USL-IRCCS di Reggio Emilia.,Università di Modena e Reggio Emilia, Reggio Emilia and Modena, Italy
| | - Paola Toniati
- Rheumatology and Clinical Immunology Unit, ASST Spedali Civili of Brescia, Brescia, Italy
| | - Davide Firinu
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Roberto Padoan
- Unit of Rheumatology, Department of Systems Medicine, Azienda Ospedaliera-Universitaria di Padova, Padova, Italy
| | - Allyson Egan
- Department of Medicine, University of Cambridge, Cambridge, UK
| | | | - Florenzo Iannone
- Rheumatology Unit, Department of Emergency and Organ Transplantation (DETO), Polyclinic Hospital, University of Bari, Bari, Italy
| | - Carlo Salvarani
- Rheumatology Unit, Azienda USL-IRCCS di Reggio Emilia.,Università di Modena e Reggio Emilia, Reggio Emilia and Modena, Italy
| | - David Jayne
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Domenico Prisco
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Augusto Vaglio
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio", University of Firenze, Florence, Italy.,Nephrology and Dialysis Unit, Meyer Children's Hospital, Florence, Italy
| | - Giacomo Emmi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | | |
Collapse
|
16
|
Folci M, Ramponi G, Arcari I, Zumbo A, Brunetta E. Eosinophils as Major Player in Type 2 Inflammation: Autoimmunity and Beyond. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1347:197-219. [PMID: 34031864 DOI: 10.1007/5584_2021_640] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Eosinophils are a subset of differentiated granulocytes which circulate in peripheral blood and home in several body tissues. Along with their traditional relevance in helminth immunity and allergy, eosinophils have been progressively attributed important roles in a number of homeostatic and pathologic situations. This review aims at summarizing available evidence about eosinophils functions in homeostasis, infections, allergic and autoimmune disorders, and solid and hematological cancers.Their structural and biological features have been described, along with their physiological behavior. This includes their chemokines, cytokines, granular contents, and extracellular traps. Besides, pathogenic- and eosinophilic-mediated disorders have also been addressed, with the aim of highlighting their role in Th2-driven inflammation. In allergy, eosinophils are implicated in the pathogenesis of atopic dermatitis, allergic rhinitis, and asthma. They are also fundamentally involved in autoimmune disorders such as eosinophilic esophagitis, eosinophilic gastroenteritis, acute and chronic eosinophilic pneumonia, and eosinophilic granulomatosis with polyangiitis. In infections, eosinophils are involved in protection not only from parasites but also from fungi, viruses, and bacteria. In solid cancers, local eosinophilic infiltration is variably associated with an improved or worsened prognosis, depending on the histotype. In hematologic neoplasms, eosinophilia can be the consequence of a dysregulated cytokine production or the result of mutations affecting the myeloid lineage.Recent experimental evidence was thoroughly reviewed, with findings which elicit a complex role for eosinophils, in a tight balance between host defense and tissue damage. Eventually, emerging evidence about eosinophils in COVID-19 infection was also discussed.
Collapse
Affiliation(s)
- Marco Folci
- Humanitas Clinical and Research Center - IRCCS, Milan, Italy. .,Department of Biomedical Sciences, Humanitas University, Milan, Italy.
| | - Giacomo Ramponi
- Humanitas Clinical and Research Center - IRCCS, Milan, Italy
| | - Ivan Arcari
- Humanitas Clinical and Research Center - IRCCS, Milan, Italy
| | - Aurora Zumbo
- Humanitas Clinical and Research Center - IRCCS, Milan, Italy
| | - Enrico Brunetta
- Humanitas Clinical and Research Center - IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| |
Collapse
|
17
|
Eosinophil Responses at the Airway Epithelial Barrier during the Early Phase of Influenza A Virus Infection in C57BL/6 Mice. Cells 2021; 10:cells10030509. [PMID: 33673645 PMCID: PMC7997358 DOI: 10.3390/cells10030509] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/09/2021] [Accepted: 02/12/2021] [Indexed: 02/07/2023] Open
Abstract
Eosinophils, previously considered terminally differentiated effector cells, have multifaceted functions in tissues. We previously found that allergic mice with eosinophil-rich inflammation were protected from severe influenza and discovered specialized antiviral effector functions for eosinophils including promoting cellular immunity during influenza. In this study, we hypothesized that eosinophil responses during the early phase of influenza contribute to host protection. Using in vitro and in vivo models, we found that eosinophils were rapidly and dynamically regulated upon influenza A virus (IAV) exposure to gain migratory capabilities to traffic to lymphoid organs after pulmonary infection. Eosinophils were capable of neutralizing virus upon contact and combinations of eosinophil granule proteins reduced virus infectivity through hemagglutinin inactivation. Bi-directional crosstalk between IAV-exposed epithelial cells and eosinophils occurred after IAV infection and cross-regulation promoted barrier responses to improve antiviral defenses in airway epithelial cells. Direct interactions between eosinophils and airway epithelial cells after IAV infection prevented virus-induced cytopathology in airway epithelial cells in vitro, and eosinophil recipient IAV-infected mice also maintained normal airway epithelial cell morphology. Our data suggest that eosinophils are important in the early phase of IAV infection providing immediate protection to the epithelial barrier until adaptive immune responses are deployed during influenza.
Collapse
|
18
|
ATG5 promotes eosinopoiesis but inhibits eosinophil effector functions. Blood 2021; 137:2958-2969. [PMID: 33598715 DOI: 10.1182/blood.2020010208] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/03/2021] [Indexed: 12/14/2022] Open
Abstract
Eosinophils are white blood cells that contribute to the regulation of immunity and are involved in the pathogenesis of numerous inflammatory diseases. In contrast to other cells of the immune system, no information is available regarding the role of autophagy in eosinophil differentiation and functions. To study the autophagic pathway in eosinophils, we generated conditional knockout mice in which Atg5 is deleted within the eosinophil lineage only (designated Atg5eoΔ mice). Eosinophilia was provoked by crossbreeding Atg5eoΔ mice with Il5 (IL-5) overexpressing transgenic mice (designated Atg5eoΔIl5tg mice). Deletion of Atg5 in eosinophils resulted in a dramatic reduction in the number of mature eosinophils in blood and an increase of immature eosinophils in the bone marrow. Atg5-knockout eosinophil precursors exhibited reduced proliferation under both in vitro and in vivo conditions but no increased cell death. Moreover, reduced differentiation of eosinophils in the absence of Atg5 was also observed in mouse and human models of chronic eosinophilic leukemia. Atg5-knockout blood eosinophils exhibited augmented levels of degranulation and bacterial killing in vitro. Moreover, in an experimental in vivo model, we observed that Atg5eoΔ mice achieve better clearance of the local and systemic bacterial infection with Citrobacter rodentium. Evidence for increased degranulation of ATG5low-expressing human eosinophils was also obtained in both tissues and blood. Taken together, mouse and human eosinophil hematopoiesis and effector functions are regulated by ATG5, which controls the amplitude of overall antibacterial eosinophil immune responses.
Collapse
|
19
|
Liu C, Liu X, Zhang Y, Liu J, Yang C, Luo S, Liu T, Wang Y, Lindholt JS, Diederichsen A, Rasmussen LM, Dahl M, Sukhova GK, Lu G, Upchurch GR, Libby P, Guo J, Zhang J, Shi GP. Eosinophils Protect Mice From Angiotensin-II Perfusion-Induced Abdominal Aortic Aneurysm. Circ Res 2021; 128:188-202. [PMID: 33153394 PMCID: PMC7855167 DOI: 10.1161/circresaha.120.318182] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
RATIONALE Blood eosinophil count and ECP (eosinophil cationic protein) associate with human cardiovascular diseases. Yet, whether eosinophils play a role in cardiovascular disease remains untested. The current study detected eosinophil accumulation in human and murine abdominal aortic aneurysm (AAA) lesions, suggesting eosinophil participation in this aortic disease. OBJECTIVE To test whether and how eosinophils affect AAA growth. METHODS AND RESULTS Population-based randomized clinically controlled screening trials revealed higher blood eosinophil count in 579 male patients with AAA than in 5063 non-AAA control (0.236±0.182 versus 0.211±0.154, 109/L, P<0.001). Univariate (odds ratio, 1.381, P<0.001) and multivariate (odds ratio, 1.237, P=0.031) logistic regression analyses indicated that increased blood eosinophil count in patients with AAA served as an independent risk factor of human AAA. Immunostaining and immunoblot analyses detected eosinophil accumulation and eosinophil cationic protein expression in human and murine AAA lesions. Results showed that eosinophil deficiency exacerbated AAA growth with increased lesion inflammatory cell contents, matrix-degrading protease activity, angiogenesis, cell proliferation and apoptosis, and smooth muscle cell loss using angiotensin-II perfusion-induced AAA in Apoe-/- and eosinophil-deficient Apoe-/-ΔdblGATA mice. Eosinophil deficiency increased lesion chemokine expression, muted lesion expression of IL (interleukin) 4 and eosinophil-associated-ribonuclease-1 (mEar1 [mouse EOS-associated-ribonuclease-1], human ECP homolog), and slanted M1 macrophage polarization. In cultured macrophages and monocytes, eosinophil-derived IL4 and mEar1 polarized M2 macrophages, suppressed CD11b+Ly6Chi monocytes, and increased CD11b+Ly6Clo monocytes. mEar1 treatment or adoptive transfer of eosinophil from wild-type and Il13-/- mice, but not eosinophil from Il4-/- mice, blocked AAA growth in Apoe-/-ΔdblGATA mice. Immunofluorescent staining and immunoblot analyses demonstrated a role for eosinophil IL4 and mEar1 in blocking NF-κB (nuclear factor-κB) activation in macrophages, smooth muscle cells, and endothelial cells. CONCLUSIONS Eosinophils play a protective role in AAA by releasing IL4 and cationic proteins such as mEar1 to regulate macrophage and monocyte polarization and to block NF-κB activation in aortic inflammatory and vascular cells.
Collapse
MESH Headings
- Adoptive Transfer
- Aged
- Angiotensin II
- Animals
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/pathology
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/metabolism
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Abdominal/prevention & control
- Cells, Cultured
- Dilatation, Pathologic
- Disease Models, Animal
- Eosinophils/metabolism
- Eosinophils/transplantation
- Female
- Humans
- Inflammation Mediators/metabolism
- Interleukin-10/genetics
- Interleukin-10/metabolism
- Interleukin-4/genetics
- Interleukin-4/metabolism
- Macrophages/metabolism
- Male
- Mice, Inbred C57BL
- Mice, Knockout, ApoE
- Monocytes/metabolism
- NF-kappa B/metabolism
- Phenotype
- Ribonucleases/metabolism
- Vascular Remodeling
- Mice
Collapse
Affiliation(s)
- Conglin Liu
- Department of Cardiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Xin Liu
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Yuanyuan Zhang
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
- Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research & Key Laboratory of Emergency and Trauma of Ministry of Education, Institute of Cardiovascular Research of the First Affiliated Hospital, Hainan Medical University, Haikou 571199, China
| | - Jing Liu
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Chongzhe Yang
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Songyuan Luo
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Tianxiao Liu
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Yunzhe Wang
- Department of Cardiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Jes S. Lindholt
- Department of Cardiothoracic and Vascular Surgery, Odense University Hospital, Odense, Denmark
- Elitary Research Centre of personalised medicine in arterial disease (CIMA), Odense University Hospital, Odense, Denmark
- Cardiovascular Research Unit, Viborg Hospital, Denmark
| | - Axel Diederichsen
- Elitary Research Centre of personalised medicine in arterial disease (CIMA), Odense University Hospital, Odense, Denmark
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | - Lars M. Rasmussen
- Elitary Research Centre of personalised medicine in arterial disease (CIMA), Odense University Hospital, Odense, Denmark
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Marie Dahl
- Cardiovascular Research Unit, Viborg Hospital, Denmark
| | - Galina K. Sukhova
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Guanyi Lu
- Department of Surgery, University of Florida Health System, Gainesville, FL, USA
| | - Gilbert R. Upchurch
- Department of Surgery, University of Florida Health System, Gainesville, FL, USA
| | - Peter Libby
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Junli Guo
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
- Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research & Key Laboratory of Emergency and Trauma of Ministry of Education, Institute of Cardiovascular Research of the First Affiliated Hospital, Hainan Medical University, Haikou 571199, China
| | - Jinying Zhang
- Department of Cardiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guo-Ping Shi
- Department of Cardiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| |
Collapse
|
20
|
Lee LY, Hew GSY, Mehta M, Shukla SD, Satija S, Khurana N, Anand K, Dureja H, Singh SK, Mishra V, Singh PK, Gulati M, Prasher P, Aljabali AAA, Tambuwala MM, Thangavelu L, Panneerselvam J, Gupta G, Zacconi FC, Shastri M, Jha NK, Xenaki D, MacLoughlin R, Oliver BG, Chellappan DK, Dua K. Targeting eosinophils in respiratory diseases: Biological axis, emerging therapeutics and treatment modalities. Life Sci 2021; 267:118973. [PMID: 33400932 DOI: 10.1016/j.lfs.2020.118973] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 02/07/2023]
Abstract
Eosinophils are bi-lobed, multi-functional innate immune cells with diverse cell surface receptors that regulate local immune and inflammatory responses. Several inflammatory and infectious diseases are triggered with their build up in the blood and tissues. The mobilization of eosinophils into the lungs is regulated by a cascade of processes guided by Th2 cytokine generating T-cells. Recruitment of eosinophils essentially leads to a characteristic immune response followed by airway hyperresponsiveness and remodeling, which are hallmarks of chronic respiratory diseases. By analysing the dynamic interactions of eosinophils with their extracellular environment, which also involve signaling molecules and tissues, various therapies have been invented and developed to target respiratory diseases. Having entered clinical testing, several eosinophil targeting therapeutic agents have shown much promise and have further bridged the gap between theory and practice. Moreover, researchers now have a clearer understanding of the roles and mechanisms of eosinophils. These factors have successfully assisted molecular biologists to block specific pathways in the growth, migration and activation of eosinophils. The primary purpose of this review is to provide an overview of the eosinophil biology with a special emphasis on potential pharmacotherapeutic targets. The review also summarizes promising eosinophil-targeting agents, along with their mechanisms and rationale for use, including those in developmental pipeline, in clinical trials, or approved for other respiratory disorders.
Collapse
Affiliation(s)
- Li-Yen Lee
- School of Pharmacy, International Medical University (IMU), Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Geena Suet Yin Hew
- School of Pharmacy, International Medical University (IMU), Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Meenu Mehta
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW 2007, Australia
| | - Shakti D Shukla
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute (HMRI), University of Newcastle, New Lambton Heights, Newcastle, NSW 2305, Australia
| | - Saurabh Satija
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW 2007, Australia; School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Navneet Khurana
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Krishnan Anand
- Department of Chemical Pathology, School of Pathology, Faculty of Health Sciences and National Health Laboratory Service, University of the Free State, Bloemfontein, South Africa
| | - Harish Dureja
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana 124001, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Vijay Mishra
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Pankaj Kumar Singh
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana 500037, India
| | - Monica Gulati
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Parteek Prasher
- Department of Chemistry, University of Petroleum & Energy Studies, Dehradun 248007, India
| | - Alaa A A Aljabali
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Yarmouk University, Irbid, Jordan
| | - Murtaza M Tambuwala
- School of Pharmacy and Pharmaceutical Sciences, Ulster University, Coleraine, County Londonderry, BT52 1SA, Northern Ireland, United Kingdom
| | - Lakshmi Thangavelu
- Department of Pharmacology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Jithendra Panneerselvam
- Department of Pharmaceutical Technology, International Medical University (IMU), Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Jaipur 302017, India
| | - Flavia C Zacconi
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago, Chile; Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Madhur Shastri
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart 7005, Australia
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida 201310, India
| | - Dikaia Xenaki
- Woolcock Institute of Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Ronan MacLoughlin
- Aerogen, IDA Business Park, Dangan, H91 HE94 Galway, Ireland; School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland; School of Pharmacy and Pharmaceutical Sciences, Trinity College, D02 PN40 Dublin, Ireland
| | - Brian G Oliver
- Woolcock Institute of Medical Research, University of Sydney, Sydney, New South Wales, Australia; School of Life Sciences, University of Technology Sydney, Sydney, New South Wales 2007, Australia.
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University (IMU), Bukit Jalil, 57000 Kuala Lumpur, Malaysia.
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW 2007, Australia; Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute (HMRI), University of Newcastle, New Lambton Heights, Newcastle, NSW 2305, Australia; School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh 173229, India.
| |
Collapse
|
21
|
Disrupting Bordetella Immunosuppression Reveals a Role for Eosinophils in Coordinating the Adaptive Immune Response in the Respiratory Tract. Microorganisms 2020; 8:microorganisms8111808. [PMID: 33212993 PMCID: PMC7698589 DOI: 10.3390/microorganisms8111808] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/10/2020] [Accepted: 11/12/2020] [Indexed: 12/20/2022] Open
Abstract
Recent findings revealed pivotal roles for eosinophils in protection against parasitic and viral infections, as well as modulation of adaptive immune responses in the gastric mucosa. However, the known effects of eosinophils within the respiratory tract remain predominantly pathological, associated with allergy and asthma. Simulating natural respiratory infections in mice, we examined how efficient and well-adapted pathogens can block eosinophil functions that contribute to the immune response. Bordetella bronchiseptica, a natural pathogen of the mouse, uses the sigma factor btrS to regulate expression of mechanisms that interfere with eosinophil recruitment and function. When btrS is disrupted, immunomodulators are dysregulated, and eosinophils are recruited to the lungs, suggesting they may contribute to much more efficient generation of adaptive immunity induced by this mutant. Eosinophil-deficient mice failed to produce pro-inflammatory cytokines, to recruit lymphocytes, to organize lymphoid aggregates that resemble Bronchus Associated Lymphoid Tissue (BALT), to generate an effective antibody response, and to clear bacterial infection from the respiratory tract. Importantly, the failure of eosinophil-deficient mice to produce these lymphoid aggregates indicates that eosinophils can mediate the generation of an effective lymphoid response in the lungs. These data demonstrate that efficient respiratory pathogens can block eosinophil recruitment, to inhibit the generation of robust adaptive immune responses. They also suggest that some post-infection sequelae involving eosinophils, such as allergy and asthma, might be a consequence of bacterial mechanisms that manipulate their accumulation and/or function within the respiratory tract.
Collapse
|
22
|
Gitto SB, Beardsley JM, Nakkina SP, Oyer JL, Cline KA, Litherland SA, Copik AJ, Khaled AS, Fanaian N, Arnoletti JP, Altomare DA. Identification of a novel IL-5 signaling pathway in chronic pancreatitis and crosstalk with pancreatic tumor cells. Cell Commun Signal 2020; 18:95. [PMID: 32552827 PMCID: PMC7302008 DOI: 10.1186/s12964-020-00594-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 05/11/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND While inflammation is associated with pancreatic cancer, the underlying mechanisms leading to cancer initiation are still being delineated. Eosinophils may promote or inhibit tumor growth, although the specific role in pancreatic cancer has yet to be determined. Eosinophil-supporting cytokine interleukin-5 and receptor are likely to have a role, but the significance in the pancreatic cancer microenvironment is unknown. METHODS Genetically engineered Akt1Myr/KRasG12D and KRasG12D mice were used to model changes induced by chronic inflammation. Tissue samples were collected to analyze the tumor microenvironment and infiltration of immune cells, whereas serum was collected to analyze cytokine and amylase activity in the inflammatory model. The expression of IL-5R and the effects of IL-5 were analyzed in human and murine tumor cells. RESULTS Compound Akt1Myr/KRasG12D mice, compared to single KRasG12D or Akt1Myr mice, exhibited increased tissue damage after repeat inductions of inflammation, and had accelerated tumor development and metastasis. M2 macrophages and newly identified eosinophils co-localized with fibrotic regions rather than infiltrating into tumors, consistent with immune cell privilege. The majority of eosinophils found in the pancreas of Akt1Myr/KRasG12D mice with chronic inflammation lacked the cytotoxic NKG2D marker. IL-5 expression was upregulated in pancreatic cells in response to inflammation, and then diminished in advanced lesions. Although not previously described in pancreatic tumors, IL-5Rα was increased during mouse pancreatic tumor progression and expressed in human pancreatic ductal adenocarcinomas (7 of 7 by immunohistochemistry). IL-5 stimulated tumor cell migration and activation through STAT5 signaling, thereby suggesting an unreported tumor-promoting role for IL-5Rα in pancreatic cancer. CONCLUSIONS Chronic inflammation induces increased pancreatic cancer progression and immune cells such as eosinophils are attracted to areas of fibrosis. Results suggest that IL-5 in the pancreatic compartment stimulates increased IL-5Rα on ductal tumor cells to increase pancreatic tumor motility. Collectively, IL-5/IL-5Rα signaling in the mouse and human pancreatic tumors microenvironment is a novel mechanism to facilitate tumor progression. Additional file 1: Video Abstract.
Collapse
Affiliation(s)
- Sarah B Gitto
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA.,Present Address: Department of Pathology and Laboratory Medicine, Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jordan M Beardsley
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA
| | - Sai Preethi Nakkina
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA
| | - Jeremiah L Oyer
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA
| | - Kathryn A Cline
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA
| | | | - Alicja J Copik
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA
| | - Amr S Khaled
- Orlando Veteran's Affairs Medical Center, Orlando, FL, 32827, USA
| | | | - J Pablo Arnoletti
- AdventHealth Cancer Institute and Institute for Surgical Advancement, Orlando, FL, 32804, USA
| | - Deborah A Altomare
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA.
| |
Collapse
|
23
|
Group 2 Innate Lymphoid Cells: Central Players in a Recurring Theme of Repair and Regeneration. Int J Mol Sci 2020; 21:ijms21041350. [PMID: 32079296 PMCID: PMC7072936 DOI: 10.3390/ijms21041350] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/13/2020] [Accepted: 02/13/2020] [Indexed: 12/25/2022] Open
Abstract
Innate lymphoid cells (ILCs) are recently discovered innate counterparts to the well-established T helper cell subsets and are most abundant at barrier surfaces, where they participate in tissue homeostasis and inflammatory responses against invading pathogens. Group 2 innate lymphoid cells (ILC2s) share cytokine and transcription factor expression profiles with type-2 helper T cells and are primarily associated with immune responses against allergens and helminth infections. Emerging data, however, suggests that ILC2s are also key regulators in other inflammatory settings; both in a beneficial context, such as the establishment of neonatal immunity, tissue repair, and homeostasis, and in the context of pathological tissue damage and disease, such as fibrosis development. This review focuses on the interactions of ILC2s with stromal cells, eosinophils, macrophages, and T regulatory cells that are common to the different settings in which type-2 immunity has been explored. We further discuss how an understanding of these interactions can reveal new avenues of therapeutic tissue regeneration, where the role of ILC2s is yet to be fully established.
Collapse
|
24
|
Abstract
The human eosinophil has long been thought to favorably influence innate mucosal immunity but at times has also been incriminated in disease pathophysiology. Research into eosinophil biology has uncovered a number of interesting contributions by eosinophils to health and disease. However, it appears that not all eosinophils from all species are created equal. It remains unclear, for example, exactly how having eosinophils benefits the human host when helminth infections in the developed world have become scarce. This review focuses on our current state of knowledge as it relates to human eosinophils. When information is lacking, we discuss lessons learned from mouse studies that may or may not directly apply to human biology and disease. It is an exciting time to be an "eosinophilosopher" because the use of biologic agents that selectively target eosinophils provides an unprecedented opportunity to define the contribution of this cell to eosinophil-associated human diseases.
Collapse
Affiliation(s)
- Amy D Klion
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA;
| | - Steven J Ackerman
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois 60607, USA;
| | - Bruce S Bochner
- Department of Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA;
| |
Collapse
|
25
|
Ledbetter L, Cherla R, Chambers C, Zhang Y, Zhang G. Eosinophils Affect Antibody Isotype Switching and May Partially Contribute to Early Vaccine-Induced Immunity against Coxiella burnetii. Infect Immun 2019; 87:e00376-19. [PMID: 31427447 PMCID: PMC6803328 DOI: 10.1128/iai.00376-19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 08/09/2019] [Indexed: 01/21/2023] Open
Abstract
Coxiella burnetii is an obligate intracellular Gram-negative bacterium which causes human Q fever. An acidified citrate cysteine medium (ACCM-2) has been developed which mimics the intracellular replicative niche of C. burnetii and allows axenic growth of the bacteria. To determine if C. burnetii cultured in ACCM-2 retains immunogenicity, we compared the protective efficacies of formalin-inactivated C. burnetii Nine Mile phase I (PIV) and phase II (PIIV) vaccines derived from axenic culture 7, 14, and 28 days postvaccination. PIV conferred significant protection against virulent C. burnetii as early as 7 days postvaccination, which suggests that ACCM-2-derived PIV retains immunogenicity and protectivity. We analyzed the cellular immune response in spleens from PIV- and PIIV-vaccinated mice by flow cytometry at 7 and 14 days postvaccination and found significantly more granulocytes in PIV-vaccinated mice than in PIIV-vaccinated mice. Interestingly, we found these infiltrating granulocytes to be SSChigh CD11b+ CD125+ Siglec-F+ (where SSChigh indicates a high side scatter phenotype) eosinophils. There was no change in the number of eosinophils in PIV-vaccinated CD4-deficient mice compared to the level in controls, which suggests that eosinophil accumulation is CD4+ T cell dependent. To evaluate the importance of eosinophils in PIV-mediated protection, we vaccinated and challenged eosinophil-deficient ΔdblGATA mice. ΔdblGATA mice had significantly worse disease than their wild-type counterparts when challenged 7 days postvaccination, while no significant difference was seen at 28 days postvaccination. Nevertheless, ΔdblGATA mice had elevated serum IgM with decreased IgG1 and IgG2a whether mice were challenged at 7 or 28 days postvaccination. These results suggest that eosinophils may play a role in early vaccine protection against C. burnetii and contribute to antibody isotype switching.
Collapse
Affiliation(s)
- Lindsey Ledbetter
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, USA
| | - Rama Cherla
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, USA
| | - Catherine Chambers
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, USA
| | - Yan Zhang
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, USA
| | - Guoquan Zhang
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, USA
| |
Collapse
|
26
|
Kandikattu HK, Upparahalli Venkateshaiah S, Mishra A. Synergy of Interleukin (IL)-5 and IL-18 in eosinophil mediated pathogenesis of allergic diseases. Cytokine Growth Factor Rev 2019; 47:83-98. [PMID: 31126874 PMCID: PMC6781864 DOI: 10.1016/j.cytogfr.2019.05.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/28/2019] [Accepted: 05/09/2019] [Indexed: 02/07/2023]
Abstract
Eosinophils are circulating granulocytes that have pleiotropic effects in response to inflammatory signals in the body. In response to allergens or pathogens, exposure eosinophils are recruited in various organs that execute pathological immune responses. IL-5 plays a key role in the differentiation, development, and survival of eosinophils. Eosinophils are involved in a variety of allergic diseases including asthma, dermatitis and various gastrointestinal disorders (EGID). IL-5 signal transduction involves JAK-STAT-p38MAPK-NFκB activation and executes extracellular matrix remodeling, EMT transition and immune responses in allergic diseases. IL-18 is a classical cytokine also involved in immune responses and has a critical role in inflammasome pathway. We recently identified the IL-18 role in the generation, transformation, and maturation of (CD101+CD274+) pathogenic eosinophils. In, addition, several other cytokines like IL-2, IL-4, IL-13, IL-21, and IL-33 also contribute in advancing eosinophils associated immune responses in innate and adaptive immunity. This review discusses with a major focus (1) Eosinophils and its constituents, (2) Role of IL-5 and IL-18 in eosinophils development, transformation, maturation, signal transduction of IL-5 and IL-18, (3) The role of eosinophils in allergic disorders and (4) The role of several other associated cytokines in promoting eosinophils mediated allergic diseases.
Collapse
Affiliation(s)
- Hemanth Kumar Kandikattu
- Department of Medicine, Tulane Eosinophilic Disorders Centre (TEDC), Section of Pulmonary Diseases, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Sathisha Upparahalli Venkateshaiah
- Department of Medicine, Tulane Eosinophilic Disorders Centre (TEDC), Section of Pulmonary Diseases, Tulane University School of Medicine, New Orleans, LA 70112, United States
| | - Anil Mishra
- Department of Medicine, Tulane Eosinophilic Disorders Centre (TEDC), Section of Pulmonary Diseases, Tulane University School of Medicine, New Orleans, LA 70112, United States.
| |
Collapse
|
27
|
Musich T, Rahman MA, Mohanram V, Miller-Novak L, Demberg T, Venzon DJ, Felber BK, Franchini G, Pavlakis GN, Robert-Guroff M. Neutrophil Vaccination Dynamics and Their Capacity To Mediate B Cell Help in Rhesus Macaques. THE JOURNAL OF IMMUNOLOGY 2018; 201:2287-2302. [PMID: 30217830 DOI: 10.4049/jimmunol.1800677] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/14/2018] [Indexed: 12/28/2022]
Abstract
Neutrophils are the most abundant leukocyte and play a critical role in the initial response to an Ag. Recently, their ability to contribute to adaptive immunity has been highlighted. We evaluated the ability of neutrophils from blood to contribute to the adaptive immune response in a preclinical rhesus macaque SIV vaccine trial. Replication-competent adenovirus-SIV recombinants induced neutrophil activation, B cell help markers, and enhanced ability to generate reactive oxygen species. Boosting with SIV vaccines (adjuvant together with ALVAC or DNA plus envelope protein) elicited significant neutrophil responses. Serum cytokine and chemokine levels induced correlated with the frequency of neutrophil subsets expressing IL-21, myeloperoxidase, and CD64. Post-SIV infection, neutrophils exhibited dysfunction, both phenotypically and functionally. B cells from protected and infected macaques cocultured with autologous polymorphonuclear cells, consisting primarily of neutrophils, were activated, underwent class switching, and produced Abs. This B cell help was not aided by addition of IL-10 and was largely contact dependent. Numerous genes associated with inflammation, Ab production, and chemotaxis were upregulated in the cocultured B cells. We conclude that immune stimulation by vaccination or antigenic exposure imparts a greater ability of neutrophils to contribute to the adaptive immune response. Harnessing this granulocytic response has the potential to improve vaccine efficacy.
Collapse
Affiliation(s)
- Thomas Musich
- Immune Biology of Retroviral Infection Section, Vaccine Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Mohammad Arif Rahman
- Immune Biology of Retroviral Infection Section, Vaccine Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Venkatramanan Mohanram
- Immune Biology of Retroviral Infection Section, Vaccine Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Leia Miller-Novak
- Immune Biology of Retroviral Infection Section, Vaccine Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Thorsten Demberg
- Immune Biology of Retroviral Infection Section, Vaccine Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - David J Venzon
- Biostatistics and Data Management Section, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Barbara K Felber
- Human Retrovirus Pathogenesis Section, Vaccine Branch, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Genoveffa Franchini
- Animal Models and Retroviral Vaccines Section, Vaccine Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892; and
| | - George N Pavlakis
- Human Retrovirus Section, Vaccine Branch, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Marjorie Robert-Guroff
- Immune Biology of Retroviral Infection Section, Vaccine Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892;
| |
Collapse
|
28
|
Terhune TD, Deth RC. Aluminum Adjuvant-Containing Vaccines in the Context of the Hygiene Hypothesis: A Risk Factor for Eosinophilia and Allergy in a Genetically Susceptible Subpopulation? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E901. [PMID: 29751492 PMCID: PMC5981940 DOI: 10.3390/ijerph15050901] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/19/2018] [Accepted: 04/29/2018] [Indexed: 12/17/2022]
Abstract
There are similarities between the immune response following immunization with aluminum adjuvants and the immune response elicited by some helminthic parasites, including stimulation of immunoglobulin E (IgE) and eosinophilia. Immunization with aluminum adjuvants, as with helminth infection, induces a Th2 type cell mediated immune response, including eosinophilia, but does not induce an environment conducive to the induction of regulatory mechanisms. Helminths play a role in what is known as the hygiene hypothesis, which proposes that decreased exposure to microbes during a critical time in early life has resulted in the increased prevalence and morbidity of asthma and atopic disorders over the past few decades, especially in Western countries. In addition, gut and lung microbiome composition and their interaction with the immune system plays an important role in a properly regulated immune system. Disturbances in microbiome composition are a risk factor for asthma and allergies. We propose that immunization with aluminum adjuvants in general is not favorable for induction of regulatory mechanisms and, in the context of the hygiene hypothesis and microbiome theory, can be viewed as an amplifying factor and significant contributing risk factor for allergic diseases, especially in a genetically susceptible subpopulation.
Collapse
Affiliation(s)
- Todd D Terhune
- College of Pharmacy, Department of Pharmaceutical Sciences, Nova Southeastern University, 1382 Terry Bldg, 3200 South University Drive, Fort Lauderdale, FL 33328, USA.
| | - Richard C Deth
- College of Pharmacy, Department of Pharmaceutical Sciences, Nova Southeastern University, 1382 Terry Bldg, 3200 South University Drive, Fort Lauderdale, FL 33328, USA.
| |
Collapse
|
29
|
Yanagibashi T, Satoh M, Nagai Y, Koike M, Takatsu K. Allergic diseases: From bench to clinic - Contribution of the discovery of interleukin-5. Cytokine 2018; 98:59-70. [PMID: 28863833 DOI: 10.1016/j.cyto.2016.11.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 11/18/2016] [Indexed: 01/21/2023]
Abstract
T helper 2 cells produce a number of cytokines including inteleukin (IL)-5, IL-4 and IL-13. Group 2 innate lymphoid cells (ILC2s) also produce IL-5 under sterile conditions. IL-5 is interdigitating homodimeric glycoprotein and a member of the four α helical bundle motifs conserved among hematopoietic cytokines. IL-5 exerts its effects on target cells via IL-5 receptor (IL-5R), composed of an IL-5R α and βc subunit. The membrane proximal proline-rich motif of the cytoplasmic domain of both IL-5R α and βc subunits is essential for IL-5 signal transduction. Although IL-5 was initially identified by its ability to support the growth and terminal differentiation of mouse B cells into antibody-secreting cells, recombinant IL-5 exerts pleiotropic activities on various target cells. For example, IL-5 is now recognized as the major maturation and differentiation factor for eosinophils in mice and humans. Overexpression of IL-5 in mouse significantly increases eosinophil numbers and antibody levels in vivo, while mice lacking a functional gene for IL-5 or IL-5R display developmental and functional impairments in B cell and eosinophil lineages. In mice, the role of the IL-5/IL-5R system in the production and secretion of Immunoglobulin (Ig) M and IgA in mucosal tissues has been reported. Although eosinophils protect against invading pathogens including virus, bacteria and helminthes, they are also involved in the pathogenesis of various diseases, such as food allergy, asthma, and inflammatory bowel diseases. The recent expansion in our understanding in the context of IL-5 and IL-5-producing ILC2s in eosinophil activation and the pathogenesis of eosinophil-dependent inflammatory diseases has led to advances in therapeutic options. A new therapy currently under invetigarion in clinical trials uses humanized monoclonal antibodies against IL-5 or the IL-5R. In this review, we summarize our current understanding of the functions of IL-5 and its receptor, the innate regulation of IL-5-producing cells, and therapeutic potential of anti-IL-5 and anti-eosinophil (IL-5R) antibodies.
Collapse
Affiliation(s)
- Tsutomu Yanagibashi
- Toyama Prefectural Institute of Pharmaceutical Research, 17-1 Nakataikouyama, Imizu City, Toyama 939-0363, Japan; Department of Immunobiology and Pharmacological Genetics, Graduate School of Medicine and Pharmaceutical Science, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama 930-0194, Japan
| | - Mitsuo Satoh
- Kyowa Hakko Kirin Co., Ltd., Otemachi Finamcial City Grand Cube, 1-9-2, Chiyoda-ku, Tokyo 100-8185, Japan
| | - Yoshinori Nagai
- Department of Immunobiology and Pharmacological Genetics, Graduate School of Medicine and Pharmaceutical Science, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama 930-0194, Japan; JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Masamichi Koike
- Kyowa Hakko Kirin Co., Ltd., Otemachi Finamcial City Grand Cube, 1-9-2, Chiyoda-ku, Tokyo 100-8185, Japan
| | - Kiyoshi Takatsu
- Toyama Prefectural Institute of Pharmaceutical Research, 17-1 Nakataikouyama, Imizu City, Toyama 939-0363, Japan; Department of Immunobiology and Pharmacological Genetics, Graduate School of Medicine and Pharmaceutical Science, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama 930-0194, Japan.
| |
Collapse
|
30
|
Eosinophil-derived CCL-6 impairs hematopoietic stem cell homeostasis. Cell Res 2018; 28:323-335. [PMID: 29327730 PMCID: PMC5835778 DOI: 10.1038/cr.2018.2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 10/06/2017] [Accepted: 10/23/2017] [Indexed: 12/13/2022] Open
Abstract
Eosinophils (Eos) have been long considered as end-stage effector cells in the hierarchical hematopoietic system. Numerous lines of evidence have suggested that Eos are multifunctional leukocytes with respect to the initiation, propagation and regulation of various inflammatory or immune reactions, especially in allergic diseases. Recent studies have shown that Eos are also required for maintenance of bone marrow plasma cells and differentiation of B cells. However, it remains unclear whether Eos contributes to regulation of hematopoietic stem cell (HSC) homeostasis. Here, we demonstrate that Eos disrupt HSC homeostasis by impairing HSC quiescence and reconstitution ability in wild-type mice following ovalbumin (OVA) challenge and even by causing bone marrow HSC failure and exhaustion in Cd3δ-Il-5 transgenic mice. The impaired maintenance and function of HSCs were associated with Eos-induced redox imbalance (increased oxidative phosphorylation and decreased anti-oxidants levels). More importantly, using mass spectrometry, we determined that CCL-6 is expressed at a high level under eosinophilia. We demonstrate that CCL-6 is Eos-derived and responsible for the impaired HSC homeostasis. Interestingly, blockage of CCL-6 with a specific neutralizing antibody, restored the reconstitution ability of HSCs while exacerbating eosinophilia airway inflammation in OVA-challenged mice. Thus, our study reveals an unexpected function of Eos/CCL-6 in HSC homeostasis.
Collapse
|
31
|
Abstract
Eosinophils are a prominent cell type in particular host responses such as the response to helminth infection and allergic disease. Their effector functions have been attributed to their capacity to release cationic proteins stored in cytoplasmic granules by degranulation. However, eosinophils are now being recognized for more varied functions in previously underappreciated diverse tissue sites, based on the ability of eosinophils to release cytokines (often preformed) that mediate a broad range of activities into the local environment. In this Review, we consider evolving insights into the tissue distribution of eosinophils and their functional immunobiology, which enable eosinophils to secrete in a selective manner cytokines and other mediators that have diverse, 'non-effector' functions in health and disease.
Collapse
Affiliation(s)
- Peter F Weller
- Division of Allergy and Inflammation, Harvard Medical School, Beth Israel Deaconess Medical Center, CLS 943, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
| | - Lisa A Spencer
- Division of Allergy and Inflammation, Harvard Medical School, Beth Israel Deaconess Medical Center, CLS 943, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
| |
Collapse
|
32
|
Active immunization in patients transplanted for hepatitis B virus related liver diseases: A prospective study. PLoS One 2017; 12:e0188190. [PMID: 29145470 PMCID: PMC5690662 DOI: 10.1371/journal.pone.0188190] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 10/29/2017] [Indexed: 02/07/2023] Open
Abstract
Introduction Prophylactic administration of hepatitis B immunoglobulin (HBIG) and nucleos(t)ide analogues (NAs) is the standard treatment for controlling hepatitis B virus (HBV) recurrence after liver transplantation (LT). Since lifelong use of HBIG is expensive and inconvenient and the antibodies level in anti-hepatitis B surface (HBs) is not sustainable and stable, an alternative strategy is to produce anti-HBs antibodies by active immunization. Our present study aimed to prospectively investigate the efficacy and safety of procedural HBV vaccination in transplanted patients. Methods Recipients who had undergone LT for hepatitis B related liver diseases more than one year before, with no evidence of HBV recurrence or rejection and normal liver function were enrolled. All subjects received the hepatitis B vaccine (40 μg) by intramuscular injection at months 0, 1, 2, 6 and 12 after enrollment with continuous administration of NAs. The liver function and anti-HBs titers were measured before each vaccination and HBIG (400U) was administrated intramuscularly when anti-HBs titer was lower than 30 IU/L during the course. The results of routine blood tests, liver function, concentration of immunosuppressant, and HBV-DNA copies were monitored during the research. After completion of the vaccination procedure, recipients were regarded as responders if their anti-HBs greater than 30 IU/L were maintained for up to six months without using HBIG and vaccine. Results Twenty-seven patients were enrolled in this study and the average anti-HBs titer before vaccination was 19.86±14.80 IU/L. The average anti-HBs titer of the nine responders at the end of the follow-up was 57.14±22.75 IU/L, giving an overall response rate of 33.3% (9/27). There were no reports of reactivation of HBV, rejection, severe anaphylaxis or other adverse events. Responders and non-responders showed their significant difference in anti-HBs titers after the fourth vaccination (P<0.01). Moreover, the majority of non-responders (11/18, 63.64%) had high LY/EO rates (lymphocyte number/eosinophil number>15) while most responders (8/9, 88.89%) had low LY/EO rates at the beginning of vaccination (P = 0.019). Conclusions Active immunization is an effective, cost-saving, and safe method for the prevention of HBV reactivation in patients transplanted for hepatitis B virus related liver diseases. The LY/EO rate may be a valuable indicator in selecting potential recipients for vaccination.
Collapse
|
33
|
Humoral immune responses during asthma and influenza co-morbidity in mice. Immunobiology 2017; 222:1064-1073. [PMID: 28889999 DOI: 10.1016/j.imbio.2017.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 06/29/2017] [Accepted: 08/31/2017] [Indexed: 12/27/2022]
Abstract
Humoral immunity serve dual functions of direct pathogen neutralization and enhancement of leukocyte function. Antibody classes are determined by antigen triggers, and the resulting antibodies can contribute to disease pathogenesis and host defense. Although asthma and influenza are immunologically distinct diseases, since we have found that allergic asthma exacerbation promotes antiviral host responses to influenza A virus, we hypothesized that humoral immunity may contribute to allergic host protection during influenza. C57BL/6J mice sensitized and challenged with Aspergillus fumigatus (or not) were infected with pandemic influenza A/CA/04/2009 virus. Negative control groups included naïve mice, and mice with only 'asthma' or influenza. Concentrations of antibodies were quantified by ELISA, and in situ localization of IgA- and IgE-positive cells in the lungs was determined by immunohistochemistry. The number and phenotype of B cells in spleens and mediastinal lymph nodes were determined by flow cytometry at predetermined timepoints after virus infection until viral clearance. Mucosal and systemic antibodies remained elevated in mice with asthma and influenza with prominent production of IgE and IgA compared to influenza-only controls. B cell expansion was prominent in the mediastinal lymph nodes of allergic mice during influenza where most cells produced IgG1 and IgA. Although allergy-skewed B cell responses dominated in mice with allergic airways inflammation during influenza virus infection, virus-specific antibodies were also induced. Future studies are required to identify the mechanisms involved with B cell activation and function in allergic hosts facing respiratory viral infections.
Collapse
|
34
|
Abstract
Eosinophils are a minority circulating granulocyte classically viewed as being involved in host defense against parasites and promoting allergic reactions. However, a series of new regulatory functions for these cells have been identified in the past decade. During homeostasis, eosinophils develop in the bone marrow and migrate from the blood into target tissues following an eotaxin gradient, with interleukin-5 being a key cytokine for eosinophil proliferation, survival, and priming. In multiple target tissues, eosinophils actively regulate a variety of immune functions through their vast arsenal of granule products and cytokines, as well as direct cellular interaction with cells in proximity. The immunologic regulation of eosinophils extends from innate immunity to adaptive immunity and also involves non-immune cells. Herein, we summarize recent findings regarding novel roles of murine and human eosinophils, focusing on interactions with other hematopoietic cells. We also review new experimental tools available and remaining questions to uncover a greater understanding of this enigmatic cell.
Collapse
|
35
|
Liu Y, Zhu X, Zhang H. Effects of chemokine receptor 3 gene silencing by RNA interference on eosinophils. Exp Ther Med 2016; 13:215-221. [PMID: 28123492 PMCID: PMC5245065 DOI: 10.3892/etm.2016.3965] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Accepted: 10/21/2016] [Indexed: 12/31/2022] Open
Abstract
The present study aimed to use RNA interference (RNAi) to silence chemokine receptor 3 (CCR3) and observe the effects on eosinophils (EOS) in mice with allergic rhinitis (AR). CCR3 small interfering RNA (siRNA) lentiviral vectors were transduced into purified EOS cells cultured in vitro. Reverse transcription-polymerase chain reaction (RT-PCR) and western blot analyses were also used to detect the efficiency of silencing, and flow cytometry was used to detect the EOS apoptosis rates. Experimental mice were grouped for nasal administration, and the lentivirus was then dispensed to AR mice. RT-PCR and western blots were performed to detect the expression levels of CCR3 mRNA and protein in EOS extracted from bone marrow, peripheral blood and nasal mucosa. Furthermore, flow cytometry was performed to detect changes to CD34-positive (CD34+) cells in each group. The CCR3 siRNA lentiviral vector exhibited high efficiency in silencing CCR3 mRNA and protein expression, inhibited growth and promoted apoptosis of EOS. In addition, the expression of CCR3 mRNA and protein in the bone marrow, peripheral blood and nasal mucosa of mice in the CCR3 siRNA treatment group were lower than those in the control group (P<0.05), whereas the number of CD34+ cells in the CCR3 siRNA treatment group was not significantly different compared with that in the control group (P>0.05). CCR3 RNAi could effectively silence the expression of CCR3 mRNA and protein both in vitro and in vivo, thus promoting apoptosis of EOS and inhibiting its growth, migration and invasion.
Collapse
Affiliation(s)
- Yuehui Liu
- Department of Otorhinolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xinhua Zhu
- Department of Otorhinolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Hao Zhang
- Department of Otorhinolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| |
Collapse
|
36
|
Huang L, Appleton JA. Eosinophils in Helminth Infection: Defenders and Dupes. Trends Parasitol 2016; 32:798-807. [PMID: 27262918 PMCID: PMC5048491 DOI: 10.1016/j.pt.2016.05.004] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 04/22/2016] [Accepted: 05/11/2016] [Indexed: 12/29/2022]
Abstract
Eosinophilia is a central feature of the host response to helminth infection. Larval stages of parasitic worms are killed in vitro by eosinophils in the presence of specific antibodies or complement. These findings established host defense as the paradigm for eosinophil function. Recently, studies in eosinophil-ablated mouse strains have revealed an expanded repertoire of immunoregulatory functions for this cell. Other reports document crucial roles for eosinophils in tissue homeostasis and metabolism, processes that are central to the establishment and maintenance of parasitic worms in their hosts. In this review, we summarize current understanding of the significance of eosinophils at the host-parasite interface, highlighting their distinct functions during primary and secondary exposure.
Collapse
Affiliation(s)
- Lu Huang
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA; Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Judith A Appleton
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA; Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
| |
Collapse
|
37
|
Zhang Q, Fu XL, Qian FH, Cao Q, Mao ZD, Bai JL, Du Q, Shi Y. Polymorphisms in Toll-like receptor 3 are associated with asthma-related phenotypes in the Chinese Han patients. Int J Immunogenet 2016; 43:383-390. [PMID: 27682462 DOI: 10.1111/iji.12290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 07/25/2016] [Accepted: 09/01/2016] [Indexed: 12/16/2022]
Abstract
Toll-like receptor (TLR) 3 mediates antivirus immunity and is involved in asthma exacerbation and development. However, the genetic association between TLR3 and asthma remains unclear. This study aimed to evaluate the effects of polymorphisms within TLR3 on asthma risk and asthma-related phenotypes in the Chinese Han population. A total number of 462 unrelated adult patients with asthma and 398 healthy volunteers were enrolled in this study. The genotypes of tagging single nucleotide polymorphisms (SNPs) in TLR3 gene were determined using multiplex SNaPshot SNP genotyping assays. Case-control and case-only studies were used to assess any links with asthma and asthma-related phenotypes. The results showed that the genetic variants in TLR3 were associated with asthma-related phenotypes, including eosinophil counts, serum immunoglobulin E levels and lung function. However, there was no obvious association between the TLR3 SNPs and asthma susceptibility or asthma severity. TLR3 polymorphisms may play a considerable role in the pathogenesis of asthma. It will help in better understanding the pathogenesis of asthma and development of more effective strategies for the prevention, prediction and treatment of asthma.
Collapse
Affiliation(s)
- Q Zhang
- Department of Respiratory Medicine, Affiliated Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou, China.,Department of Respiratory Medicine, Nanjing General Hospital of Nanjing Military Command, Nanjing, China
| | - X L Fu
- Health Science Center, Jiangsu University, Zhenjiang, China
| | - F H Qian
- Department of Respiratory Medicine, Affiliated Jiangbing Hospital, Jiangsu University, Zhenjiang, China
| | - Q Cao
- Department of Respiratory Medicine, Affiliated Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou, China
| | - Z D Mao
- Department of Respiratory Medicine, Affiliated Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou, China
| | - J L Bai
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Q Du
- Department of Respiratory Medicine, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Y Shi
- Department of Respiratory Medicine, Nanjing General Hospital of Nanjing Military Command, Nanjing, China
| |
Collapse
|
38
|
Percopo CM, Brenner TA, Ma M, Kraemer LS, Hakeem RMA, Lee JJ, Rosenberg HF. SiglecF+Gr1hi eosinophils are a distinct subpopulation within the lungs of allergen-challenged mice. J Leukoc Biol 2016; 101:321-328. [PMID: 27531929 DOI: 10.1189/jlb.3a0416-166r] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 07/07/2016] [Accepted: 07/25/2016] [Indexed: 01/06/2023] Open
Abstract
Although eosinophils as a group are readily identified by their unique morphology and staining properties, flow cytometry provides an important means for identification of subgroups based on differential expression of distinct surface Ags. Here, we characterize an eosinophil subpopulation defined by high levels of expression of the neutrophil Ag Gr1 (CD45+CD11c-SiglecF+Gr1hi). SiglecF+Gr1hi eosinophils, distinct from the canonical SiglecF+Gr1- eosinophil population, were detected in allergen-challenged wild-type and granule protein-deficient (EPX-/- and MBP-1-/-) mice, but not in the eosinophil-deficient ΔdblGATA strain. In contrast to Gr1+ neutrophils, which express both cross-reacting Ags Ly6C and Ly6G, SiglecF+Gr1hi eosinophils from allergen-challenged lung tissue are uniquely Ly6G+ Although indistinguishable from the more-numerous SiglecF+Gr1- eosinophils under light microscopy, FACS-isolated populations revealed prominent differences in cytokine contents. The lymphocyte-targeting cytokines CXCL13 and IL-27 were identified only in the SiglecF+Gr1hi eosinophil population (at 3.9 and 4.8 pg/106 cells, respectively), as was the prominent proinflammatory mediator IL-13 (72 pg/106 cells). Interestingly, bone marrow-derived (SiglecF+), cultured eosinophils include a more substantial Gr1+ subpopulation (∼50%); Gr1+ bmEos includes primarily a single Ly6C+ and a smaller, double-positive (Ly6C+Ly6G+) population. Taken together, our findings characterize a distinct SiglecF+Gr1hi eosinophil subset in lungs of allergen-challenged, wild-type and granule protein-deficient mice. SiglecF+Gr1hi eosinophils from wild-type mice maintain a distinct subset of cytokines, including those active on B and T lymphocytes. These cytokines may facilitate eosinophil-mediated immunomodulatory responses in the allergen-challenged lung as well as in other distinct microenvironments.
Collapse
Affiliation(s)
- Caroline M Percopo
- Inflammation Immunobiology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Todd A Brenner
- Inflammation Immunobiology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Michelle Ma
- Inflammation Immunobiology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Laura S Kraemer
- Inflammation Immunobiology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Reem M A Hakeem
- Molecular Signal Transduction Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA; and
| | | | - Helene F Rosenberg
- Inflammation Immunobiology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA;
| |
Collapse
|
39
|
Samitas K, Malmhäll C, Rådinger M, Ramos-Ramirez P, Lu Y, Deák T, Semitekolou M, Gaga M, Sjöstrand M, Lötvall J, Bossios A. Precursor B Cells Increase in the Lung during Airway Allergic Inflammation: A Role for B Cell-Activating Factor. PLoS One 2016; 11:e0161161. [PMID: 27513955 PMCID: PMC4981371 DOI: 10.1371/journal.pone.0161161] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 08/01/2016] [Indexed: 11/18/2022] Open
Abstract
Background B cells, key cells in allergic inflammation, differentiate in the bone marrow and their precursors include pro-B, pre-B and immature B cells. Eosinophil progenitor cells increase in the lung after allergen exposure. However, the existence and possible role of B cell precursors in the lung during allergic inflammation remains elusive. Methods A BALB/c mouse model of allergic airway inflammation was utilized to perform phenotypic and quantification analyses of pro-B and pre-B cells in the lung by flow cytometry. B cell maturation factors IL-7 and B cell-activating factor (BAFF) and their receptors (CD127 and BAFFR, BCMA, TACI, respectively) were also evaluated in the lung and serum. The effect of anti-BAFF treatment was investigated both in vivo (i.p. administration of BAFF-R-Ig fusion protein) and in vitro (colony forming cell assay). Finally, BAFF levels were examined in the bronchoalveolar lavage (BAL) of asthmatic patients and healthy controls. Results Precursor pro and pre-B cells increase in the lung after allergen exposure, proliferate in the lung tissue in vivo, express markers of chemotaxis (CCR10 and CXCR4) and co-stimulation (CD40, CD86) and are resistant to apoptosis (Bax). Precursor B cells express receptors for BAFF at baseline, while after allergen challenge both their ligand BAFF and the BCMA receptor expression increases in B cell precursors. Blocking BAFFR in the lung in vivo decreases eosinophils and proliferating precursor B cells. Blocking BAFFR in bone marrow cultures in vitro reduces pre-B colony formation units. BAFF is increased in the BAL of severe asthmatics. Conclusion Our data support the concept of a BAFF-mediated role for B cell precursors in allergic airway inflammation.
Collapse
Affiliation(s)
- Konstantinos Samitas
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Cellular Immunology Laboratory, Division of Cell Biology, Center for Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
- 7th Respiratory Medicine Dept. and Asthma Center, Athens Chest Hospital “Sotiria”, Athens, Greece
| | - Carina Malmhäll
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Madeleine Rådinger
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Patricia Ramos-Ramirez
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - You Lu
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Tünde Deák
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maria Semitekolou
- Cellular Immunology Laboratory, Division of Cell Biology, Center for Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Mina Gaga
- 7th Respiratory Medicine Dept. and Asthma Center, Athens Chest Hospital “Sotiria”, Athens, Greece
| | - Margareta Sjöstrand
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jan Lötvall
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Apostolos Bossios
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- * E-mail:
| |
Collapse
|
40
|
Wichert S, Pettersson Å, Hellmark T, Johansson Å, Hansson M. Phagocyte function decreases after high-dose treatment with melphalan and autologous stem cell transplantation in patients with multiple myeloma. Exp Hematol 2016; 44:342-351.e5. [PMID: 26774385 DOI: 10.1016/j.exphem.2016.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 12/19/2015] [Accepted: 01/06/2016] [Indexed: 11/28/2022]
Abstract
High-dose melphalan with autologous hematopoietic stem cell transplantation (ASCT) is the standard of care for younger patients with newly diagnosed multiple myeloma and is aimed at achieving as deep and complete a response as possible after various combinations of induction therapy. However, it is frequently associated with infectious complications. This study investigated the effects of high-dose treatment with autologous stem cell support on patients' innate immunity, with a focus on subpopulations and functioning of recently released polymorphonuclear leukocytes (PMNs) and monocytes in peripheral blood. Flow cytometry-based analysis was used to measure the degree of PMN maturation and activation, before and after ASCT and compared with healthy controls. After high-dose treatment and ASCT, a smaller proportion of patients' PMNs had the capacity for oxidative burst. Moreover, patients' PMNs, both before and after ASCT, had a reduced capacity for phagocytosis. Eosinophils, which recently have been suggested to play a role in promoting malignant plasma cell proliferation, were markedly reduced after ASCT, with slow regeneration. HLA-DR expression by monocytes was significantly depressed after ASCT, a characteristic often attributed to monocytic myeloid-derived suppressor cells. Our results suggest that several aspects of phagocytic function are impaired for at least 20 days after ASCT.
Collapse
Affiliation(s)
- Stina Wichert
- Department of Hematology, Skåne University Hospital and Lund University, Lund, Sweden.
| | - Åsa Pettersson
- Department of Nephrology, Clinical Sciences in Lund, Lund University, Lund, Sweden
| | - Thomas Hellmark
- Department of Nephrology, Clinical Sciences in Lund, Lund University, Lund, Sweden
| | - Åsa Johansson
- Department of Hematology, Skåne University Hospital and Lund University, Lund, Sweden; Clinical Immunology and Transfusion Medicine, University and Regional Laboratories Region Skåne, Lund, Sweden
| | - Markus Hansson
- Department of Hematology, Skåne University Hospital and Lund University, Lund, Sweden
| |
Collapse
|
41
|
Rosenberg HF. Eosinophils. ENCYCLOPEDIA OF IMMUNOBIOLOGY 2016. [PMCID: PMC7173586 DOI: 10.1016/b978-0-12-374279-7.03007-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Eosinophils have been traditionally understood as end-stage, primarily cytotoxic effector cells. Recent studies have had profound impact on this limited view and have led to new research on the functions and capabilities of this unique leukocyte lineage. Novel insights into eosinophil development, localization, modes of degranulation, and the nature of their granule contents have provided a better understanding of these cells as immunomodulatory mediators in health and disease.
Collapse
|
42
|
Duriancik DM, Comstock SS, Langohr IM, Fenton JI. High levels of fish oil enhance neutrophil development and activation and influence colon mucus barrier function in a genetically susceptible mouse model. J Nutr Biochem 2015; 26:1261-72. [PMID: 26297475 DOI: 10.1016/j.jnutbio.2015.06.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 05/28/2015] [Accepted: 06/04/2015] [Indexed: 12/23/2022]
Abstract
Dietary fatty acids influence immunologic homeostasis, but their effect on initiation of colitis, an immune-mediated disease, is not well established. Previously, our laboratory demonstrated that high doses of dietary fish oil (FO) increased colon inflammation and dysplasia in a model of infection-induced colitis. In the current study, we assessed the effects of high-dose dietary FO, 6% by weight, on colon inflammation, neutrophil recruitment and function, and mucus layer integrity in a genetically susceptible, colitis-prone mouse model in the absence of infection. FO-fed SMAD3(-/-) mice had increased colon inflammation evidenced by increased numbers of systemic and local neutrophils and increased neutrophil chemoattractant and inflammatory cytokine gene expression in the colon. Mucus layer thickness in the cecum and goblet cell numbers in the cecum and colon in FO-fed mice were reduced compared to control. FO consumption affected colitis in male and female mice differently. Compared to female control mice, neutrophils from FO-fed female mice had reduced reactive oxygen species (ROS) upon ex vivo stimulation with phorbol myristate acetate while FO-fed male mice produced increased ROS compared to control-fed male mice. In summary, dietary FO impaired mucus layer integrity and was associated with colon inflammation characterized by increased neutrophil numbers and altered neutrophil function. High-dose FO may have detrimental effects in populations genetically susceptible for inflammatory bowel disease and these effects may differ between males and females.
Collapse
Affiliation(s)
- David M Duriancik
- Department of Food Science & Human Nutrition, Michigan State University East Lansing, MI, 48824
| | - Sarah S Comstock
- Department of Food Science & Human Nutrition, Michigan State University East Lansing, MI, 48824
| | - Ingeborg M Langohr
- Department of Pathobiological Sciences Louisiana State University, Baton Rouge, LA, 70803
| | - Jenifer I Fenton
- Department of Food Science & Human Nutrition, Michigan State University East Lansing, MI, 48824.
| |
Collapse
|
43
|
Travers J, Rothenberg ME. Eosinophils in mucosal immune responses. Mucosal Immunol 2015; 8:464-75. [PMID: 25807184 PMCID: PMC4476057 DOI: 10.1038/mi.2015.2] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 12/28/2014] [Indexed: 02/06/2023]
Abstract
Eosinophils, multifunctional cells that contribute to both innate and adaptive immunity, are involved in the initiation, propagation, and resolution of immune responses, including tissue repair. They achieve this multifunctionality by expression of a diverse set of activation receptors, including those that directly recognize pathogens and opsonized targets, and by their ability to store and release preformed cytotoxic mediators that participate in host defense, to produce a variety of de novo pleotropic mediators and cytokines, and to interact directly and indirectly with diverse cell types, including adaptive and innate immunocytes and structural cells. Herein, we review the basic biology of eosinophils and then focus on new emerging concepts about their role in mucosal immune homeostasis, particularly maintenance of intestinal IgA. We review emerging data about their development and regulation and describe new concepts concerning mucosal eosinophilic diseases. We describe recently developed therapeutic strategies to modify eosinophil levels and function and provide collective insight about the beneficial and detrimental functions of these enigmatic cells.
Collapse
|
44
|
Landolina N, Gangwar RS, Levi-Schaffer F. Mast cells' integrated actions with eosinophils and fibroblasts in allergic inflammation: implications for therapy. Adv Immunol 2015; 125:41-85. [PMID: 25591464 DOI: 10.1016/bs.ai.2014.09.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mast cells (MCs) and eosinophils (Eos) are the key players in the development of allergic inflammation (AI). Their cross-talk, named the Allergic Effector Unit (AEU), takes place through an array of soluble mediators and ligands/receptors interactions that enhance the functions of both the cells. One of the salient features of the AEU is the CD48/2B4 receptor/ligand binding complex. Furthermore, MCs and Eos have been demonstrated to play a role not only in AI but also in the modulation of its consequence, i.e., fibrosis/tissue remodeling, by directly influencing fibroblasts (FBs), the main target cells of these processes. In turn, FBs can regulate the survival, activity, and phenotype of both MCs and Eos. Therefore, a complex three players, MCs/Eos/FBs interaction, can take place in various stages of AI. The characterization of the soluble and physical mediated cross talk among these three cells might lead to the identification of both better and novel targets for the treatment of allergy and its tissue remodeling consequences.
Collapse
Affiliation(s)
- Nadine Landolina
- Department of Pharmacology, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Roopesh Singh Gangwar
- Department of Pharmacology, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Francesca Levi-Schaffer
- Department of Pharmacology, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel.
| |
Collapse
|
45
|
|
46
|
Huang L, Gebreselassie NG, Gagliardo LF, Ruyechan MC, Luber KL, Lee NA, Lee JJ, Appleton JA. Eosinophils mediate protective immunity against secondary nematode infection. THE JOURNAL OF IMMUNOLOGY 2014; 194:283-90. [PMID: 25429065 DOI: 10.4049/jimmunol.1402219] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Eosinophils are versatile cells that regulate innate and adaptive immunity, influence metabolism and tissue repair, and contribute to allergic lung disease. Within the context of immunity to parasitic worm infections, eosinophils are prominent yet highly varied in function. We have shown previously that when mice undergo primary infection with the parasitic nematode Trichinella spiralis, eosinophils play an important immune regulatory role that promotes larval growth and survival in skeletal muscle. In this study, we aimed to address the function of eosinophils in secondary infection with T. spiralis. By infecting eosinophil-ablated mice, we found that eosinophils are dispensable for immunity that clears adult worms or controls fecundity in secondary infection. In contrast, eosinophil ablation had a pronounced effect on secondary infection of skeletal muscle by migratory newborn larvae. Restoring eosinophils to previously infected, ablated mice caused them to limit muscle larvae burdens. Passive immunization of naive, ablated mice with sera or Ig from infected donors, together with transfer of eosinophils, served to limit the number of newborn larvae that migrated in tissue and colonized skeletal muscle. Results from these in vivo studies are consistent with earlier findings that eosinophils bind to larvae in the presence of Abs in vitro. Although our previous findings showed that eosinophils protect the parasite in primary infection, these new data show that eosinophils protect the host in secondary infection.
Collapse
Affiliation(s)
- Lu Huang
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
| | - Nebiat G Gebreselassie
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
| | - Lucille F Gagliardo
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
| | - Maura C Ruyechan
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
| | - Kierstin L Luber
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
| | - Nancy A Lee
- Department of Biochemistry and Molecular Biology, Division of Hematology/Oncology, Mayo Clinic Arizona, Scottsdale, AZ 85259; and
| | - James J Lee
- Department of Biochemistry and Molecular Biology, Division of Pulmonary Medicine, Mayo Clinic Arizona, Scottsdale, AZ 85259
| | - Judith A Appleton
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853;
| |
Collapse
|
47
|
Chu DK, Jimenez-Saiz R, Verschoor CP, Walker TD, Goncharova S, Llop-Guevara A, Shen P, Gordon ME, Barra NG, Bassett JD, Kong J, Fattouh R, McCoy KD, Bowdish DM, Erjefält JS, Pabst O, Humbles AA, Kolbeck R, Waserman S, Jordana M. Indigenous enteric eosinophils control DCs to initiate a primary Th2 immune response in vivo. ACTA ACUST UNITED AC 2014; 211:1657-72. [PMID: 25071163 PMCID: PMC4113937 DOI: 10.1084/jem.20131800] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Eosinophils natively inhabit the small intestine, but a functional role for them there has remained elusive. Here, we show that eosinophil-deficient mice were protected from induction of Th2-mediated peanut food allergy and anaphylaxis, and Th2 priming was restored by reconstitution with il4(+/+) or il4(-/-) eosinophils. Eosinophils controlled CD103(+) dendritic cell (DC) activation and migration from the intestine to draining lymph nodes, events necessary for Th2 priming. Eosinophil activation in vitro and in vivo led to degranulation of eosinophil peroxidase, a granule protein whose enzymatic activity promoted DC activation in mice and humans in vitro, and intestinal and extraintestinal mouse DC activation and mobilization to lymph nodes in vivo. Further, eosinophil peroxidase enhanced responses to ovalbumin seen after immunization. Thus, eosinophils can be critical contributors to the intestinal immune system, and granule-mediated shaping of DC responses can promote both intestinal and extraintestinal adaptive immunity.
Collapse
Affiliation(s)
- Derek K Chu
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Rodrigo Jimenez-Saiz
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Christopher P Verschoor
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Tina D Walker
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Susanna Goncharova
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Alba Llop-Guevara
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Pamela Shen
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Melissa E Gordon
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Nicole G Barra
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Jennifer D Bassett
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Joshua Kong
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Ramzi Fattouh
- Clinical Microbiology, Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario M5S 1A8, Canada
| | - Kathy D McCoy
- Maurice Müller Laboratories, Universitätsklinik für Viszerale Chirurgie und Medizin (UVCM), University of Bern, 3008 Bern, Switzerland
| | - Dawn M Bowdish
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Jonas S Erjefält
- Department of Experimental Medical Science, Lund University, SE-22184 Lund, Sweden Department of Respiratory Medicine and Allergology, Lund University Hospital, SE-22185 Lund, Sweden
| | - Oliver Pabst
- Institute of Molecular Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Alison A Humbles
- Department of Respiratory, Inflammation and Autoimmunity, MedImmune LLC, Gaithersburg, MA 20878
| | - Roland Kolbeck
- Department of Respiratory, Inflammation and Autoimmunity, MedImmune LLC, Gaithersburg, MA 20878
| | - Susan Waserman
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Manel Jordana
- McMaster Immunology Research Centre (MIRC), Department of Pathology and Molecular Medicine, and Department of Medicine, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| |
Collapse
|