1
|
Immler R, Nussbaumer K, Doerner A, El Bounkari O, Huber S, Abisch J, Napoli M, Schmidt S, Margraf A, Pruenster M, Rohwedder I, Lange-Sperandio B, Mall MA, de Jong R, Ohnmacht C, Bernhagen J, Voehringer D, Marth JD, Frommhold D, Sperandio M. CCR3-dependent eosinophil recruitment is regulated by sialyltransferase ST3Gal-IV. Proc Natl Acad Sci U S A 2024; 121:e2319057121. [PMID: 38687790 PMCID: PMC11087806 DOI: 10.1073/pnas.2319057121] [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: 10/31/2023] [Accepted: 04/03/2024] [Indexed: 05/02/2024] Open
Abstract
Eosinophil recruitment is a pathological hallmark of many allergic and helminthic diseases. Here, we investigated chemokine receptor CCR3-induced eosinophil recruitment in sialyltransferase St3gal4-/- mice. We found a marked decrease in eosinophil extravasation into CCL11-stimulated cremaster muscles and into the inflamed peritoneal cavity of St3gal4-/- mice. Ex vivo flow chamber assays uncovered reduced adhesion of St3gal4-/- compared to wild type eosinophils. Using flow cytometry, we show reduced binding of CCL11 to St3gal4-/- eosinophils. Further, we noted reduced binding of CCL11 to its chemokine receptor CCR3 isolated from St3gal4-/- eosinophils. This was accompanied by almost absent CCR3 internalization of CCL11-stimulated St3gal4-/- eosinophils. Applying an ovalbumin-induced allergic airway disease model, we found a dramatic reduction in eosinophil numbers in bronchoalveolar lavage fluid following intratracheal challenge with ovalbumin in St3gal4-deficient mice. Finally, we also investigated tissue-resident eosinophils under homeostatic conditions and found reduced resident eosinophil numbers in the thymus and adipose tissue in the absence of ST3Gal-IV. Taken together, our results demonstrate an important role of ST3Gal-IV in CCR3-induced eosinophil recruitment in vivo rendering this enzyme an attractive target in reducing unwanted eosinophil infiltration in various disorders including allergic diseases.
Collapse
Affiliation(s)
- Roland Immler
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Katrin Nussbaumer
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Axel Doerner
- Department of Neonatology, University of Heidelberg, Heidelberg69120, Germany
| | - Omar El Bounkari
- Division of Vascular Biology, Institute for Stroke and Dementia Research, Ludwig-Maximilians-Universität, München81377, Germany
| | - Silke Huber
- Institute of Immunology, Ludwig-Maximilians-Universität München, München80336, Germany
| | - Janine Abisch
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Matteo Napoli
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Sarah Schmidt
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Andreas Margraf
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Monika Pruenster
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Ina Rohwedder
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| | - Baerbel Lange-Sperandio
- von Haunersches Kinderspital, Klinikum der Universität München, Ludwig-Maximilians-Universität, München80336, Germany
| | - Marcus A. Mall
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Berlin, Berlin13353, Germany
- Berlin Institute of Health at Charité–Universitätsmedizin Berlin, Berlin10117, Germany
- German Centre for Lung Research, Associated Partner Site, Berlin13353, Germany
| | - Renske de Jong
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, München80802, Germany
| | - Caspar Ohnmacht
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, München80802, Germany
| | - Juergen Bernhagen
- Division of Vascular Biology, Institute for Stroke and Dementia Research, Ludwig-Maximilians-Universität, München81377, Germany
- Munich Cluster for Systems Neurology, München81377, Germany
- Munich Heart Alliance, München80336, Germany
| | - David Voehringer
- Institute of Immunology, Ludwig-Maximilians-Universität München, München80336, Germany
- Department of Infection Biology, University of Erlangen, Erlangen91054, Germany
| | - Jamey D. Marth
- Sanford Burnham Prebys Medical Discovery Institute, Infectious and Inflammatory Diseases, San Diego, CA92037
| | - David Frommhold
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
- Children’s Hospital Memmingen, Memmingen87700, Germany
| | - Markus Sperandio
- Institute of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-UniversitätMünchen, PLanegg-Martinsried82152, Germany
| |
Collapse
|
2
|
Bochner BS, O'Sullivan JA, Chang AT, Youngblood BA. Siglecs in allergy and asthma. Mol Aspects Med 2023; 90:101104. [PMID: 35835621 PMCID: PMC10757266 DOI: 10.1016/j.mam.2022.101104] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/28/2022] [Accepted: 07/03/2022] [Indexed: 01/21/2023]
Abstract
The term "allergic diseases" encompasses several common, IgE-mediated conditions that range from being annoying to those that are life-threatening. Available treatments include active avoidance of the instigating allergen and the use of a variety of oral, inhaled, intranasal, intraocular and injected agents. While most individuals with allergies do well with existing therapies, there are still unmet therapeutic needs. Siglecs (sialic acid-binding, immunoglobulin-like lectins) are a family of single-pass transmembrane I-type lectins found on various subsets of cells, especially those of the immune system. All Siglecs have extracellular domains recognizing sialoside ligands, and most contain cytoplasmic domains with inhibitory signaling activity. This review focuses on Siglecs that likely play a role in regulating allergic and asthmatic responses, and how specific Siglecs, expressed on cells such as eosinophils and mast cells, are being targeted for therapeutic benefit.
Collapse
Affiliation(s)
- Bruce S Bochner
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| | - Jeremy A O'Sullivan
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | | | | |
Collapse
|
3
|
Lv W, Yu H, Han M, Tan Y, Wu M, Zhang J, Wu Y, Zhang Q. Analysis of Tumor Glycosylation Characteristics and Implications for Immune Checkpoint Inhibitor’s Efficacy for Breast Cancer. Front Immunol 2022; 13:830158. [PMID: 35444644 PMCID: PMC9013822 DOI: 10.3389/fimmu.2022.830158] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/08/2022] [Indexed: 12/14/2022] Open
Abstract
The alterations of glycosylation, which is a common post-translational modification of proteins, have been acknowledged as key events in breast cancer (BC) oncogenesis and progression. The aberrant expression of glycosyltransferases leads to aberrant glycosylation patterns, posing the diagnostic potential in BC outcomes. The present study aims to establish a glycosyltransferase-based signature to predict BC prognosis and response to immune checkpoint inhibitors. We firstly screened 9 glycosyltransferase genes from The Cancer Genome Atlas (TCGA) database and accordingly established a glyco-signature for predicting the prognosis in BC patients. Patients with BC were successfully divided into high-risk and low-risk groups based on the median cutoff point for risk scores in this signature. Next, the combinational analyses of univariate and multivariate Cox regression, Kaplan–Meier, and receiver operating characteristic (ROC) curves were used to prove that this glyco-signature possessed excellent predictive performance for prognosis of BC patients, as the high-risk group possessed worse outcomes, in comparison to the low-risk group. Additionally, the Gene Set Enrichment Analysis (GSEA) and immunologic infiltration analysis were adopted and indicated that there was a more immunosuppressive state in the high-risk group than that in the low-risk group. The clinical sample validation verified that glycosyltransferase genes were differentially expressed in patients in the low- and high-risk groups, while the biomarkers of antitumor M1 macrophages were increased and N-glycosyltransferase STT3A decreased in the low-risk group. The final in vitro assay showed that the silencing of STT3A suppressed the proliferation and migration of BC cells. Collectively, our well-constructed glyco-signature is able to distinguish the high- and low-risk groups and accordingly predict BC prognosis, which will synergistically promote the prognosis evaluation and provide new immunotherapeutic targets for combating BC.
Collapse
Affiliation(s)
- Wenchang Lv
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Honghao Yu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mei Han
- Department of Anesthesiology, The People’s Hospital of China Three Gorges, China Three Gorges University, Yichang, China
| | - Yufang Tan
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Wu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Zhang
- Department of Thyroid and Breast Surgery, Shenzhen Qianhai Shekou Free Trade Zone Hospital, Shenzhen, China
- *Correspondence: Jun Zhang, ; Yiping Wu, ; Qi Zhang,
| | - Yiping Wu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Jun Zhang, ; Yiping Wu, ; Qi Zhang,
| | - Qi Zhang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Jun Zhang, ; Yiping Wu, ; Qi Zhang,
| |
Collapse
|
4
|
O'Sullivan JA, Chang AT, Youngblood BA, Bochner BS. Eosinophil and mast cell Siglecs: From biology to drug target. J Leukoc Biol 2020; 108:73-81. [PMID: 31965606 PMCID: PMC7531194 DOI: 10.1002/jlb.2mr0120-352rr] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 12/26/2022] Open
Abstract
Mast cells and eosinophils are innate immune cells involved in both acute and chronic inflammatory responses. Siglecs are a family of cell surface receptors that share sialic acid binding activity. Over the past 20 years, our knowledge of the expression and function of Siglecs on cells of the immune system and others has greatly expanded, as has our understanding of their signaling, ligands, and possible roles in disease pathophysiology. Because of this, Siglecs have garnered interest as potential drug targets using strategies ranging from biologics to ligand-directed nanoparticles. This mini-review will highlight the state of our knowledge regarding human eosinophil and mast cell Siglecs, their biology, what they recognize, tools developed for in vitro and preclinical experimentation, and the status of ongoing efforts to develop drugs that engage eosinophil and mast cell Siglecs for potential therapeutic benefit.
Collapse
Affiliation(s)
- Jeremy A O'Sullivan
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | | | | | - Bruce S Bochner
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| |
Collapse
|
5
|
Läubli H, Varki A. Sialic acid-binding immunoglobulin-like lectins (Siglecs) detect self-associated molecular patterns to regulate immune responses. Cell Mol Life Sci 2020; 77:593-605. [PMID: 31485715 PMCID: PMC7942692 DOI: 10.1007/s00018-019-03288-x] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/11/2019] [Accepted: 08/28/2019] [Indexed: 12/12/2022]
Abstract
The mammalian immune system evolved to tightly regulate the elimination of pathogenic microbes and neoplastic transformed cells while tolerating our own healthy cells. Here, we summarize experimental evidence for the role of Siglecs-in particular CD33-related Siglecs-as self-receptors and their sialoglycan ligands in regulating this balance between recognition of self and non-self. Sialoglycans are found in the glycocalyx and extracellular fluids and matrices of all mammalian cells and can be considered as self-associated molecular patterns (SAMPs). We also provide an overview of the known interactions of Siglec receptors and sialoglycan-SAMPs. Manipulation of the Siglec-SAMP axis offers new therapeutic opportunities for the treatment of inflammatory conditions, autoimmune diseases and also cancer immunotherapy.
Collapse
Affiliation(s)
- Heinz Läubli
- Laboratory for Cancer Immunotherapy, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland.
| | - Ajit Varki
- Department of Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA, 92093-0687, USA.
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA, 92093-0687, USA.
| |
Collapse
|
6
|
Beckert H, Meyer-Martin H, Buhl R, Taube C, Reuter S. Single and Synergistic Effects of Type 2 Cytokines on Eosinophils and Asthma Hallmarks. THE JOURNAL OF IMMUNOLOGY 2019; 204:550-558. [PMID: 31862712 DOI: 10.4049/jimmunol.1901116] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 11/19/2019] [Indexed: 12/15/2022]
Abstract
The type 2 cytokines IL-5, IL-13, and IL-4 play an important role in the induction and progression of asthma. According to the Global Initiative for Asthma guidelines, blood eosinophil numbers are one marker that helps to guide treatment decisions in patients suffering from severe forms of asthma. Effects of type 2 cytokines were analyzed, alone or in combination, on eosinophils in blood and other compartments and on the development of asthma symptoms. C57BL/6 mice received a single intranasal application of equimolar amounts of IL-5, IL-13, and IL-4, alone or in combination. Numbers, activation state, and migratory behavior of eosinophils in bone marrow (BM), blood, lung, and bronchoalveolar lavage as well as airway hyperresponsiveness and goblet cell metaplasia were evaluated. Only IL-13 was associated with airway eosinophilia, development of airway hyperresponsiveness, and goblet cell metaplasia, without any synergistic effects. IL-5 increased the number of eosinophils in BM and lung tissue but failed to affect structural changes. IL-4 had similar, but weaker, effects to IL-13. Cytokine combinations synergistically affected eosinophils but failed to enhance IL-13-driven effects on lung function or goblet cell metaplasia. IL-5 and IL-13 markedly increased eosinophil numbers locally in lung and airways and distally in blood and BM, whereas IL-5 and IL-4 only increased eosinophils in lung and BM. IL-13 together with IL-4 failed to demonstrate any synergistic effect. These insights into single and combined effects of type 2 cytokines on disease-driving mechanisms could improve understanding of the impact and effectiveness of new therapies in asthma.
Collapse
Affiliation(s)
- Hendrik Beckert
- Department of Pulmonary Medicine, University Hospital Essen-Ruhrlandklinik, 45239 Essen, Germany; and
| | - Helen Meyer-Martin
- Department of Pulmonary Medicine, III, Medical Clinic, Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany
| | - Roland Buhl
- Department of Pulmonary Medicine, III, Medical Clinic, Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany
| | - Christian Taube
- Department of Pulmonary Medicine, University Hospital Essen-Ruhrlandklinik, 45239 Essen, Germany; and
| | - Sebastian Reuter
- Department of Pulmonary Medicine, University Hospital Essen-Ruhrlandklinik, 45239 Essen, Germany; and
| |
Collapse
|
7
|
Azevedo PO, Paiva AE, Santos GSP, Lousado L, Andreotti JP, Sena IFG, Tagliati CA, Mintz A, Birbrair A. Cross-talk between lung cancer and bones results in neutrophils that promote tumor progression. Cancer Metastasis Rev 2019; 37:779-790. [PMID: 30203108 DOI: 10.1007/s10555-018-9759-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lung cancer is the leading cause of cancer mortality around the world. The lack of detailed understanding of the cellular and molecular mechanisms participating in the lung tumor progression restrains the development of efficient treatments. Recently, by using state-of-the-art technologies, including in vivo sophisticated Cre/loxP technologies in combination with lung tumor models, it was revealed that osteoblasts activate neutrophils that promote tumor growth in the lung. Strikingly, genetic ablation of osteoblasts abolished lung tumor progression via interruption of SiglecFhigh-expressing neutrophils supply to the tumor microenvironment. Interestingly, SiglecFhigh neutrophil signature was associated with worse lung adenocarcinoma patients outcome. This study identifies novel cellular targets for lung cancer treatment. Here, we summarize and evaluate recent advances in our understanding of lung tumor microenvironment.
Collapse
Affiliation(s)
- Patrick O Azevedo
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ana E Paiva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Gabryella S P Santos
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luiza Lousado
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Julia P Andreotti
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Isadora F G Sena
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Carlos A Tagliati
- Department of Clinical and Toxicological Analysis, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. .,Department of Radiology, Columbia University Medical Center, New York, NY, USA.
| |
Collapse
|
8
|
Arakawa S, Suzukawa M, Ohshima N, Tashimo H, Asari I, Matsui H, Kobayashi N, Shoji S, Nagase T, Ohta K. Expression of Siglec-8 is regulated by interleukin-5, and serum levels of soluble Siglec-8 may predict responsiveness of severe eosinophilic asthma to mepolizumab. Allergol Int 2018; 67S:S41-S44. [PMID: 29703694 DOI: 10.1016/j.alit.2018.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/11/2018] [Accepted: 03/26/2018] [Indexed: 11/27/2022] Open
MESH Headings
- Aged
- Antibodies, Monoclonal, Humanized/therapeutic use
- Antigens, CD/blood
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Antigens, Differentiation, B-Lymphocyte/blood
- Antigens, Differentiation, B-Lymphocyte/genetics
- Antigens, Differentiation, B-Lymphocyte/metabolism
- Asthma/diagnosis
- Asthma/drug therapy
- Asthma/metabolism
- Biomarkers
- Eosinophilia/pathology
- Female
- Gene Expression
- Humans
- Interleukin-5/blood
- Interleukin-5/metabolism
- Lectins/blood
- Lectins/genetics
- Lectins/metabolism
- Male
- Middle Aged
- Respiratory Function Tests
Collapse
Affiliation(s)
- Sayaka Arakawa
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan; Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Maho Suzukawa
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan.
| | - Nobuharu Ohshima
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | - Hiroyuki Tashimo
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | - Isao Asari
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | - Hirotoshi Matsui
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | | | - Shunsuke Shoji
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | - Takahide Nagase
- Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Ken Ohta
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| |
Collapse
|
9
|
O’Sullivan JA, Wei Y, Carroll DJ, Moreno-Vinasco L, Cao Y, Zhang F, Lee JJ, Zhu Z, Bochner BS. Frontline Science: Characterization of a novel mouse strain expressing human Siglec-8 only on eosinophils. J Leukoc Biol 2018; 104:11-19. [PMID: 29601103 PMCID: PMC6013361 DOI: 10.1002/jlb.2hi0917-391r] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 02/08/2018] [Accepted: 02/12/2018] [Indexed: 01/01/2023] Open
Abstract
Sialic acid-binding immunoglobulin-like lectin (Siglec)-8 is a human cell surface protein expressed exclusively on eosinophils, mast cells, and basophils that, when engaged, induces eosinophil apoptosis and inhibits mast cell mediator release. This makes Siglec-8 a promising therapeutic target to treat diseases involving these cell types. However, preclinical studies of Siglec-8 targeting in vivo are lacking because this protein is only found in humans, apes, and some monkeys. Therefore, we have developed a mouse strain in which SIGLEC8 transcription is activated by Cre recombinase and have crossed this mouse with the eoCre mouse to achieve eosinophil-specific expression. We confirmed that Siglec-8 is expressed exclusively on the surface of mature eosinophils in multiple tissues at levels comparable to those on human blood eosinophils. Following ovalbumin sensitization and airway challenge, Siglec-8 knock-in mice generated a pattern of allergic lung inflammation indistinguishable from that of littermate controls, suggesting that Siglec-8 expression within the eosinophil compartment does not alter allergic eosinophilic inflammation. Using bone marrow from these mice, we demonstrated that, during maturation, Siglec-8 expression occurs well before the late eosinophil developmental marker C-C motif chemokine receptor 3, consistent with eoCre expression. Antibody ligation of the receptor induces Siglec-8 endocytosis and alters the phosphotyrosine profile of these cells, indicative of productive signaling. Finally, we demonstrated that mouse eosinophils expressing Siglec-8 undergo cell death when the receptor is engaged, further evidence that Siglec-8 is functional on these cells. These mice should prove useful to investigate Siglec-8 biology and targeting in vivo in a variety of eosinophilic disease models.
Collapse
Affiliation(s)
- Jeremy A. O’Sullivan
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Yadong Wei
- Section of Allergy and Clinical Immunology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Daniela J. Carroll
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Liliana Moreno-Vinasco
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Yun Cao
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Fengrui Zhang
- Section of Allergy and Clinical Immunology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - James. J. Lee
- Division of Pulmonary Medicine, Department of Biochemistry and Molecular Biology, Mayo Clinic Arizona, Scottsdale, Arizona, USA
| | - Zhou Zhu
- Section of Allergy and Clinical Immunology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Bruce S. Bochner
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| |
Collapse
|
10
|
Kumagai T, Kiwamoto T, Brummet ME, Wu F, Aoki K, Zhu Z, Bochner BS, Tiemeyer M. Airway glycomic and allergic inflammatory consequences resulting from keratan sulfate galactose 6-O-sulfotransferase (CHST1) deficiency. Glycobiology 2018; 28:406-417. [PMID: 29659839 PMCID: PMC5967469 DOI: 10.1093/glycob/cwy025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 03/09/2018] [Accepted: 03/26/2018] [Indexed: 02/06/2023] Open
Abstract
Siglec-F is a pro-apoptotic receptor on mouse eosinophils that recognizes 6'-sulfated sialyl Lewis X and 6'-sulfated sialyl N-acetyl-lactosamine as well as multivalent sialyl N-acetyl-lactosamine structures on glycan arrays. We hypothesized that attenuation of the carbohydrate sulfotransferase 1 (CHST1) gene encoding keratan sulfate galactose 6-O-sulfotransferase, an enzyme likely required for 6'-sulfation of some of these putative Siglec-F glycan ligands, would result in decreased Siglec-F lung ligand levels and enhanced allergic eosinophilic airway inflammation. Tissue analysis detected CHST1 expression predominantly not only in parenchymal cells but not in airway epithelium, the latter being a location where Siglec-F ligands are located. Western blotting of lung extracts with Siglec-F-Fc fusion proteins detected ≈500 kDa and ≈200 kDa candidate Siglec-F ligands that were not appreciably altered in CHST1-/- lungs compared with normal mouse lungs. Characterization of the O-linked glycans of lung tissue and bronchoalveolar lavage fluid detected altered sialylation but minimal change in sulfation. Eosinophilic airway inflammation was induced in wild-type (WT) and CHST1-/- mice via sensitization to ovalbumin (OVA) and repeated airway challenge. After OVA sensitization and challenge, Siglec-F ligands on airway cells, and numbers of eosinophils and neutrophils accumulating in the airways, both increased to a similar degree in WT and CHST1-/- mouse lungs, while macrophages and lymphocytes increased significantly more in CHST1-/- mouse airway compared with normal mouse lungs. Therefore, keratan sulfate galactose 6-O-sulfotransferase does not contribute to the synthesis of glycan ligands for Siglec-F in the airways, although its absence results in exaggerated accumulation of airway macrophages and lymphocytes.
Collapse
Affiliation(s)
- Tadahiro Kumagai
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602
| | - Takumi Kiwamoto
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224
| | - Mary E Brummet
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224
| | - Fan Wu
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224
| | - Kazuhiro Aoki
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602
| | - Zhou Zhu
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224
| | - Bruce S Bochner
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224
- Department of Medicine, Division of Allergy-Immunology, Northwestern University Feinberg School of Medicine, 240 E. Huron Street, Room M-306, Chicago, IL 60611
| | - Michael Tiemeyer
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602
- Department of Biochemistry and Molecular Biology, University of Georgia, B122 Life Sciences Building, Athens, GA 30602, USA
| |
Collapse
|
11
|
Fairfax KA, Bolden JE, Robinson AJ, Lucas EC, Baldwin TM, Ramsay KA, Cole R, Hilton DJ, de Graaf CA. Transcriptional profiling of eosinophil subsets in interleukin-5 transgenic mice. J Leukoc Biol 2018; 104:195-204. [PMID: 29758105 PMCID: PMC6749942 DOI: 10.1002/jlb.6ma1117-451r] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/15/2018] [Accepted: 03/12/2018] [Indexed: 01/21/2023] Open
Abstract
Eosinophils are important in fighting parasitic infections and are implicated in the pathogenesis of asthma and allergy. IL‐5 is a critical regulator of eosinophil development, controlling proliferation, differentiation, and maturation of the lineage. Mice that constitutively express IL‐5 have in excess of 10‐fold more eosinophils in the hematopoietic organs than their wild type (WT) counterparts. We have identified that much of this expansion is in a population of Siglec‐F high eosinophils, which are rare in WT mice. In this study, we assessed transcription in myeloid progenitors, eosinophil precursors, and Siglec‐F medium and Siglec‐F high eosinophils from IL‐5 transgenic mice and in doing so have created a useful resource for eosinophil biologists. We have then utilized these populations to construct an eosinophil trajectory based on gene expression and to identify gene sets that are associated with eosinophil lineage progression. Cell cycle genes were significantly associated with the trajectory, and we experimentally demonstrate an increasing trend toward quiescence along the trajectory. Additionally, we found gene expression changes associated with constitutive IL‐5 signaling in eosinophil progenitors, many of which were not observed in eosinophils. Eosinophils in Interleukin‐5 transgenic mice can be subdivided by Siglec‐F expression, and are transcriptionally distinct.
Collapse
Affiliation(s)
- Kirsten A Fairfax
- Division of Molecular Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Australia
| | - Jessica E Bolden
- Division of Molecular Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Australia
| | - Aaron J Robinson
- Division of Molecular Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Erin C Lucas
- Division of Molecular Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Tracey M Baldwin
- Division of Molecular Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Kerry A Ramsay
- Division of Molecular Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Rebecca Cole
- Division of Molecular Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Douglas J Hilton
- Division of Molecular Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Australia
| | - Carolyn A de Graaf
- Division of Molecular Medicine, Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Australia
| |
Collapse
|
12
|
O’Sullivan JA, Carroll DJ, Bochner BS. Glycobiology of Eosinophilic Inflammation: Contributions of Siglecs, Glycans, and Other Glycan-Binding Proteins. Front Med (Lausanne) 2017; 4:116. [PMID: 28824909 PMCID: PMC5539825 DOI: 10.3389/fmed.2017.00116] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 07/10/2017] [Indexed: 12/31/2022] Open
Abstract
The historical focus on protein-protein interactions in biological systems, at the expense of attention given to interactions between other classes of molecules, has overlooked important and clinically relevant processes and points of potential clinical intervention. For example, the significance of protein-carbohydrate interactions, especially in the regulation of immune responses, has recently received greater recognition and appreciation. This review discusses several ways by which cell-surface lectin-glycan interactions can modulate eosinophil function, particularly at the levels of eosinophil recruitment and survival, and how such interactions can be exploited therapeutically. A primary focus is on discoveries concerning Siglec-8, a glycan-binding protein selectively expressed on human eosinophils, and its closest functional paralog in the mouse, Siglec-F. Recent advances in the synthesis of polymeric ligands, the identification of physiological ligands for Siglec-8 and Siglec-F in the airway, and the determination of the basis of glycan ligand discrimination of Siglec-8 are discussed. Important similarities and differences between these siglecs are outlined. Eosinophil expression of additional glycan-binding proteins or their glycan ligands, including interactions involving members of the selectin, galectin, and siglec families, is summarized. The roles of these molecules in eosinophil recruitment, survival, and inflammation are described. Finally, the modulation of these interactions and potential therapeutic exploitation of glycan-binding proteins and their ligands to ameliorate eosinophil-associated diseases are considered.
Collapse
Affiliation(s)
- Jeremy A. O’Sullivan
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Daniela J. Carroll
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Bruce S. Bochner
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| |
Collapse
|
13
|
Regulation of airway inflammation by Siglec-8 and Siglec-9 sialoglycan ligand expression. Curr Opin Allergy Clin Immunol 2016; 16:24-30. [PMID: 26694037 DOI: 10.1097/aci.0000000000000234] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Inflammatory cells involved in the allergic response, including eosinophils, mast cells, basophils, and neutrophils, express sialoglycan-binding proteins such as Siglec-8 and Siglec-9, which inhibit cell function and survival. The purpose of this review is to briefly discuss the biology of these siglecs and their ligands and consider their potential impact in pathology and treatment of chronic rhinosinusitis (CRS). RECENT FINDINGS Recent studies demonstrate the presence of ligands for Siglec-8 and Siglec-9 in sinonasal tissue from patients with CRS as well as healthy patients, suggesting that the immunoregulatory functions of siglecs may be triggered in sinus tissue in health and disease. SUMMARY Ligands for Siglec-8 and Siglec-9 may regulate the function of eosinophils, mast cells, neutrophils, and other cells in sinus mucosa. Therapeutic strategies that activate the anti-inflammatory effects of siglecs may dampen inflammation and disease in CRS patients.
Collapse
|
14
|
Janssen WJ, Stefanski AL, Bochner BS, Evans CM. Control of lung defence by mucins and macrophages: ancient defence mechanisms with modern functions. Eur Respir J 2016; 48:1201-1214. [PMID: 27587549 DOI: 10.1183/13993003.00120-2015] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 06/12/2016] [Indexed: 12/14/2022]
Abstract
Owing to the need to balance the requirement for efficient respiration in the face of tremendous levels of exposure to endogenous and environmental challenges, it is crucial for the lungs to maintain a sustainable defence that minimises damage caused by this exposure and the detrimental effects of inflammation to delicate gas exchange surfaces. Accordingly, epithelial and macrophage defences constitute essential first and second lines of protection that prevent the accumulation of potentially harmful agents in the lungs, and under homeostatic conditions do so effectively without inducing inflammation. Though epithelial and macrophage-mediated defences are seemingly distinct, recent data show that they are linked through their shared reliance on airway mucins, in particular the polymeric mucin MUC5B. This review highlights our understanding of novel mechanisms that link mucus and macrophage defences. We discuss the roles of phagocytosis and the effects of factors contained within mucus on phagocytosis, as well as newly identified roles for mucin glycoproteins in the direct regulation of leukocyte functions. The emergence of this nascent field of glycoimmunobiology sets forth a new paradigm for considering how homeostasis is maintained under healthy conditions and how it is restored in disease.
Collapse
Affiliation(s)
- William J Janssen
- Dept of Medicine, National Jewish Health, Denver, CO, USA Dept of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | | | - Bruce S Bochner
- Dept of Medicine, Division of Allergy-Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Christopher M Evans
- Dept of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| |
Collapse
|
15
|
Schnaar RL. Glycobiology simplified: diverse roles of glycan recognition in inflammation. J Leukoc Biol 2016; 99:825-38. [PMID: 27004978 DOI: 10.1189/jlb.3ri0116-021r] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 02/18/2016] [Indexed: 12/30/2022] Open
Abstract
Glycans and complementary glycan-binding proteins are essential components in the language of cell-cell interactions in immunity. The study of glycan function is the purview of glycobiology, which has often been presented as an unusually complex discipline. In fact, the human glycome, composed of all of its glycans, is built primarily from only 9 building blocks that are combined by enzymes (writers) with specific and limited biosynthetic capabilities into a tractable and increasingly accessible number of potential glycan patterns that are functionally read by several dozen human glycan-binding proteins (readers). Nowhere is the importance of glycan recognition better understood than in infection and immunity, and knowledge in this area has already led to glycan mimetic anti-infective and anti-inflammatory drugs. This review includes a brief tutorial on human glycobiology and a limited number of specific examples of glycan-binding protein-glycan interactions that initiate and regulate inflammation. Examples include representatives from different glycan-binding protein families, including the C-type lectins (E-selectin, P-selectin, dectin-1, and dectin-2), sialic acid-binding immunoglobulin-like lectins (sialic acid-binding immunoglobulin-like lectins 8 and 9), galectins (galectin-1, galectin-3, and galectin-9), as well as hyaluronic acid-binding proteins. As glycoscience technologies advance, opportunities for enhanced understanding of glycans and their roles in leukocyte cell biology provide increasing opportunities for discovery and therapeutic intervention.
Collapse
Affiliation(s)
- Ronald L Schnaar
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| |
Collapse
|
16
|
Bochner BS. "Siglec"ting the allergic response for therapeutic targeting. Glycobiology 2016; 26:546-52. [PMID: 26911285 DOI: 10.1093/glycob/cww024] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 02/20/2016] [Indexed: 01/09/2023] Open
Abstract
As a physician-scientist, I have pursued research related to translational immunology with the goal of improving our ability to diagnose and treat allergic, immunologic and other diseases involving eosinophils, basophils and mast cells. We have tried to delineate novel mechanisms of human disease, working whenever possible with primary human cells and tissues, attempting to identify targets that might be amenable to the development of new therapies. As a general strategy, we have compared eosinophils, basophils, mast cells and neutrophils to look for pathways in inflammation that were unique to distinct subsets of these cells. In doing so, the concepts of glycobiology did not enter my mind until we began noticing some intriguing functional differences involving selectins and their ligands among these cell types. One simple observation, that neutrophils were coated with a glycan that allowed them to interact with an endothelial adhesion molecule while eosinophils lacked this structure, pried open the glyco-door for me. Fruitful collaborations with card-carrying glycobiologists soon followed that have forever positively influenced our science, and have enhanced our hypotheses, experimental design, research opportunities and discoveries. Within a few years, we helped to discover Siglec-8, an I-type lectin expressed only on human eosinophils, basophils, mast cells. This receptor, together with its closest mouse counterpart Siglec-F, has been the primary focus of our work now for over a decade. If not for those in the fields of glycobiology and glycoimmunology, my lab would not have made much progress toward the goal of leveraging Siglec-8 for therapeutic purposes.
Collapse
Affiliation(s)
- Bruce S Bochner
- Department of Medicine, Division of Allergy-Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| |
Collapse
|
17
|
Interleukin-17A and Neutrophils in a Murine Model of Bird-Related Hypersensitivity Pneumonitis. PLoS One 2015; 10:e0137978. [PMID: 26367130 PMCID: PMC4569356 DOI: 10.1371/journal.pone.0137978] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 08/25/2015] [Indexed: 12/16/2022] Open
Abstract
Hypersensitivity pneumonitis (HP) is an immune mediated lung disease induced by the repeated inhalation of a wide variety of antigens. Bird-related hypersensitivity pneumonitis (BRHP) is one of the most common forms of HP in human and results from the inhalation of avian antigens. The findings of a recent clinical analysis suggest that in addition to Th1 factors, the levels of interleukin(IL)-17 and IL-17-associated transcripts are increased in the setting of HP, and that both IL-17A and neutrophils are crucial for the development of pulmonary inflammation in murine models of HP. Our objectives were to investigate the roles of IL-17A and neutrophils in granuloma-forming inflammation in an acute HP model. We developed a mouse model of acute BRHP using pigeon dropping extract. We evaluated the process of granuloma formation and the roles of both IL-17A and neutrophils in a model. We found that the neutralization of IL-17A by the antibody attenuated granuloma formation and the recruitment of neutrophils, and also decreased the expression level of chemokine(C-X-C motif) ligand 5 (CXCL5) in the acute HP model. We confirmed that most of the neutrophils in the acute HP model exhibited immunoreactivity to the anti-IL-17 antibody. We have identified the central roles of both IL-17A and neutrophils in the pathogenesis of granuloma formation in acute HP. We have also assumed that neutrophils are an important source of IL-17A in an acute HP model, and that the IL-17A-CXCL5 pathway may be responsible for the recruitment of neutrophils.
Collapse
|
18
|
Miller M, Beppu A, Rosenthal P, Pham A, Das S, Karta M, Song DJ, Vuong C, Doherty T, Croft M, Zuraw B, Zhang X, Gao X, Aceves S, Chouiali F, Hamid Q, Broide DH. Fstl1 Promotes Asthmatic Airway Remodeling by Inducing Oncostatin M. THE JOURNAL OF IMMUNOLOGY 2015; 195:3546-56. [PMID: 26355153 DOI: 10.4049/jimmunol.1501105] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 08/10/2015] [Indexed: 01/28/2023]
Abstract
Chronic asthma is associated with airway remodeling and decline in lung function. In this article, we show that follistatin-like 1 (Fstl1), a mediator not previously associated with asthma, is highly expressed by macrophages in the lungs of humans with severe asthma. Chronic allergen-challenged Lys-Cre(tg) /Fstl1(Δ/Δ) mice in whom Fstl1 is inactivated in macrophages/myeloid cells had significantly reduced airway remodeling and reduced levels of oncostatin M (OSM), a cytokine previously not known to be regulated by Fstl1. The importance of the Fstl1 induction of OSM to airway remodeling was demonstrated in murine studies in which administration of Fstl1 induced airway remodeling and increased OSM, whereas administration of an anti-OSM Ab blocked the effect of Fstl1 on inducing airway remodeling, eosinophilic airway inflammation, and airway hyperresponsiveness, all cardinal features of asthma. Overall, these studies demonstrate that the Fstl1/OSM pathway may be a novel pathway to inhibit airway remodeling in severe human asthma.
Collapse
Affiliation(s)
- Marina Miller
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Andrew Beppu
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Peter Rosenthal
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Alexa Pham
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Sudipta Das
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Maya Karta
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Dae Jin Song
- Department of Pediatrics, Korea University College of Medicine, Seoul 02841, Korea
| | - Christine Vuong
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Taylor Doherty
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037
| | - Bruce Zuraw
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Xu Zhang
- Institute of Neuroscience, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xiang Gao
- Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Seema Aceves
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093; Department of Pediatrics, University of California, San Diego, La Jolla, CA 92093; and
| | - Fazila Chouiali
- Meakins-Christie Laboratories of McGill University and McGill University Health Center Research Institute, Montreal, Quebec H2X 2p2, Canada
| | - Qutayba Hamid
- Meakins-Christie Laboratories of McGill University and McGill University Health Center Research Institute, Montreal, Quebec H2X 2p2, Canada
| | - David H Broide
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093;
| |
Collapse
|
19
|
Bochner BS, Zimmermann N. Role of siglecs and related glycan-binding proteins in immune responses and immunoregulation. J Allergy Clin Immunol 2015; 135:598-608. [PMID: 25592986 DOI: 10.1016/j.jaci.2014.11.031] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 11/14/2014] [Accepted: 11/25/2014] [Indexed: 12/16/2022]
Abstract
Virtually all cells and extracellular material are heavily decorated by various glycans, yet our understanding of the structure and function of these moieties lags behind the understanding of nucleic acids, lipids, and proteins. Recent years have seen a tremendous acceleration of knowledge in the field of glycobiology, revealing many intricacies and functional contributions that were previously poorly appreciated or even unrecognized. This review highlights several topics relevant to glycoimmunology in which mammalian and pathogen-derived glycans displayed on glycoproteins and other scaffolds are recognized by specific glycan-binding proteins (GBPs), leading to a variety of proinflammatory and anti-inflammatory cellular responses. The focus for this review is mainly on 2 families of GBPs, sialic acid-binding immunoglobulin-like lectins (siglecs) and selectins, that are involved in multiple steps of the immune response, including distinguishing pathogens from self, cell trafficking to sites of inflammation, fine-tuning of immune responses leading to activation or tolerance, and regulation of cell survival. Importantly for the clinician, accelerated rates of discovery in the field of glycoimmunology are being translated into innovative medical approaches that harness the interaction of glycans and GBPs to the benefit of the host and might soon lead to novel diagnostics and therapeutics.
Collapse
Affiliation(s)
- Bruce S Bochner
- Department of Medicine, Division of Allergy-Immunology, Northwestern University Feinberg School of Medicine, Chicago, Ill.
| | - Nives Zimmermann
- Department of Pediatrics, Division of Allergy and Immunology, Children's Hospital Medical Center, and Department of Pathology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| |
Collapse
|
20
|
Kiwamoto T, Katoh T, Evans CM, Janssen WJ, Brummet ME, Hudson SA, Zhu Z, Tiemeyer M, Bochner BS. Endogenous airway mucins carry glycans that bind Siglec-F and induce eosinophil apoptosis. J Allergy Clin Immunol 2014; 135:1329-1340.e9. [PMID: 25497369 DOI: 10.1016/j.jaci.2014.10.027] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/17/2014] [Accepted: 10/22/2014] [Indexed: 12/21/2022]
Abstract
BACKGROUND Sialic acid-binding, immunoglobulin-like lectin (Siglec) F is a glycan-binding protein selectively expressed on mouse eosinophils. Its engagement induces apoptosis, suggesting a pathway for ameliorating eosinophilia in the setting of asthma and other eosinophil-associated diseases. Siglec-F recognizes sialylated sulfated glycans in glycan-binding assays, but the identities of endogenous sialoside ligands and their glycoprotein carriers in vivo are unknown. OBJECTIVES To use mouse lung-derived materials to isolate, biochemically identify, and biologically characterize naturally occurring endogenous glycan ligands for Siglec-F. METHODS Lungs from normal and mucin-deficient mice, as well as mouse tracheal epithelial cells, were investigated in vitro and in vivo for the expression of Siglec-F ligands. Western blotting and cytochemistry used Siglec-F-Fc as a probe for directed purification, followed by liquid chromatography-tandem mass spectrometry of recognized glycoproteins. Purified components were tested in mouse eosinophil-binding assays and flow cytometry-based cell death assays. RESULTS We detected mouse lung glycoproteins that bound to Siglec-F; binding was sialic acid dependent. Proteomic analysis of Siglec-F binding material identified Muc5b and Muc4. Cross-affinity enrichment and histochemical analysis of lungs from mucin-deficient mice assigned and validated the identity of Muc5b as one glycoprotein ligand for Siglec-F. Purified mucin preparations carried sialylated and sulfated glycans, bound to eosinophils and induced their death in vitro. Mice conditionally deficient in Muc5b displayed exaggerated eosinophilic inflammation in response to intratracheal installation of IL-13. CONCLUSIONS These data identify a previously unrecognized endogenous anti-inflammatory property of airway mucins by which their glycans can control lung eosinophilia through engagement of Siglec-F.
Collapse
Affiliation(s)
- Takumi Kiwamoto
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Toshihiko Katoh
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602
| | - Christopher M Evans
- Department of Medicine, Division of Pulmonary Medicine, University of Colorado School of Medicine, Denver, CO 80045
| | - William J Janssen
- Department of Medicine, Division of Pulmonary Medicine, University of Colorado School of Medicine, Denver, CO 80045.,Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health, Denver, CO, 80206
| | - Mary E Brummet
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Sherry A Hudson
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Zhou Zhu
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Michael Tiemeyer
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602
| | - Bruce S Bochner
- Department of Medicine, Division of Allergy and Clinical Immunology, The Johns Hopkins University School of Medicine, Baltimore, MD 21224
| |
Collapse
|
21
|
Macauley MS, Crocker PR, Paulson JC. Siglec-mediated regulation of immune cell function in disease. Nat Rev Immunol 2014; 14:653-66. [PMID: 25234143 DOI: 10.1038/nri3737] [Citation(s) in RCA: 743] [Impact Index Per Article: 74.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
All mammalian cells display a diverse array of glycan structures that differ from those that are found on microbial pathogens. Siglecs are a family of sialic acid-binding immunoglobulin-like receptors that participate in the discrimination between self and non-self, and that regulate the function of cells in the innate and adaptive immune systems through the recognition of their glycan ligands. In this Review, we describe the recent advances in our understanding of the roles of Siglecs in the regulation of immune cell function in infectious diseases, inflammation, neurodegeneration, autoimmune diseases and cancer.
Collapse
Affiliation(s)
- Matthew S Macauley
- Departments of Cell and Molecular Biology, Immunology and Microbial Science, and Physiological Chemistry, The Scripps Research Institute, La Jolla, California 92037, USA
| | - Paul R Crocker
- Division of Cell Signalling and Immunology, Wellcome Trust Building, College of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - James C Paulson
- Departments of Cell and Molecular Biology, Immunology and Microbial Science, and Physiological Chemistry, The Scripps Research Institute, La Jolla, California 92037, USA
| |
Collapse
|
22
|
Miyazaki M, Miyazaki K, Chen S, Itoi M, Miller M, Lu LF, Varki N, Chang AN, Broide DH, Murre C. Id2 and Id3 maintain the regulatory T cell pool to suppress inflammatory disease. Nat Immunol 2014; 15:767-76. [PMID: 24973820 PMCID: PMC4365819 DOI: 10.1038/ni.2928] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 05/22/2014] [Indexed: 12/15/2022]
Abstract
Regulatory T (Treg) cells suppress the development of inflammatory disease, but our knowledge of transcriptional regulators that control this function remains incomplete. Here we show that expression of Id2 and Id3 in Treg cells was required to suppress development of fatal inflammatory disease. We found that T cell antigen receptor (TCR)-driven signaling initially decreased the abundance of Id3, which led to the activation of a follicular regulatory T (TFR) cell-specific transcription signature. However, sustained lower abundance of Id2 and Id3 interfered with proper development of TFR cells. Depletion of Id2 and Id3 expression in Treg cells resulted in compromised maintenance and localization of the Treg cell population. Thus, Id2 and Id3 enforce TFR cell checkpoints and control the maintenance and homing of Treg cells.
Collapse
Affiliation(s)
- Masaki Miyazaki
- 1] Department of Molecular Biology, University of California, San Diego, La Jolla, California, USA. [2]
| | - Kazuko Miyazaki
- 1] Department of Molecular Biology, University of California, San Diego, La Jolla, California, USA. [2]
| | - Shuwen Chen
- 1] Department of Molecular Biology, University of California, San Diego, La Jolla, California, USA. [2]
| | - Manami Itoi
- Department of Immunology and Microbiology, Meiji University of Integrative Medicine, Hiyoshi-cho, Kyoto, Japan
| | - Marina Miller
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Li-Fan Lu
- Department of Molecular Biology, University of California, San Diego, La Jolla, California, USA
| | - Nissi Varki
- Department of Pathology, University of California, San Diego, La Jolla, California, USA
| | - Aaron N Chang
- Center for Computational Biology, Institute for Genomic Medicine, University of California, San Diego, La Jolla, California, USA
| | - David H Broide
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Cornelis Murre
- Department of Molecular Biology, University of California, San Diego, La Jolla, California, USA
| |
Collapse
|
23
|
Angata T. Associations of genetic polymorphisms of Siglecs with human diseases. Glycobiology 2014; 24:785-93. [PMID: 24841380 DOI: 10.1093/glycob/cwu043] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Genetic polymorphism studies in humans provide unique opportunities to understand human biology and the mechanisms of diseases. Correlations between polymorphisms in the genes encoding human Siglecs and various diseases have been reported. Leading examples, such as the CD33 polymorphism associated with late-onset Alzheimer's disease, are well supported by genetic replication and mechanistic studies, while some others (such as SIGLEC8 polymorphism associated with bronchial asthma and SIGLEC14 polymorphism associated with exacerbation of chronic obstructive pulmonary disease) may benefit reinforcement by independent genetic replication or mechanistic studies. In a few cases, such as MAG polymorphism associated with psychological disorder and CD22 polymorphism associated with autoimmune disease, the phenotype associated with a genetic polymorphism of a Siglec gene and that of an enzyme gene involved in the biosynthesis of Siglec ligand show some overlap, providing indirect support for the observed genotype-phenotype association. Although studies using engineered mutant mice have provided invaluable insights into the biological functions and mechanisms of diseases, it is not always possible to develop appropriate mouse model to replicate human situations because of significant species-to-species differences, which can be a major obstacle in understanding the biology of some of human CD33/Siglec-3-related Siglecs. Further studies in genetic polymorphisms of human Siglecs, combined with appropriate functional studies, may reveal unexpected biological roles of human Siglecs, and identify possible targets for prevention and/or treatment of certain diseases.
Collapse
Affiliation(s)
- Takashi Angata
- Institute of Biological Chemistry, Academia Sinica, 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
| |
Collapse
|
24
|
McMillan SJ, Richards HE, Crocker PR. Siglec-F-dependent negative regulation of allergen-induced eosinophilia depends critically on the experimental model. Immunol Lett 2014; 160:11-16. [PMID: 24698729 PMCID: PMC4045373 DOI: 10.1016/j.imlet.2014.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 03/11/2014] [Accepted: 03/21/2014] [Indexed: 12/19/2022]
Abstract
Siglec-F-dependent negative regulation of eosinophilia depends on experimental model. Siglec-F-dependent suppression of lung eosinophilia may not depend on ligand-induced apoptosis. Implications for therapeutic approaches to treating human disease in which siglec-8, is targeted.
Siglec-8 and siglec-F are paralogous membrane proteins expressed on human and murine eosinophils respectively. They bind similar sialylated and sulphated glycans and mediate eosinophil apoptosis when cross-linked with antibodies or glycan ligands. In models of allergic eosinophilic airway inflammation, siglec-F was shown previously to be important for negatively regulating eosinophilia. It was proposed that this was due to siglec-F-dependent apoptosis, triggered via engagement with ligands that are upregulated on bronchial epithelium. Our aim was to further investigate the functions of siglec-F by comparing two commonly used models of ovalbumin-induced airway inflammation that differ in the dose and route of administration of ovalbumin. In confirmation of published results, siglec-F-deficient mice had enhanced lung tissue eosinophilia in response to intranasal ovalbumin delivered every other day. However, following aerosolised ovalbumin delivered daily, there was no influence of siglec-F deficiency on lung eosinophilia. Expression of siglec-F ligands in lung tissues was similar in both models of allergen induced inflammation. These data demonstrate that siglec-F-dependent regulation of eosinophilia is subtle and depends critically on the model used. The findings also indicate that mechanisms other than ligand-induced apoptosis may be important in siglec-F-dependent suppression of eosinophilia.
Collapse
Affiliation(s)
- Sarah J McMillan
- Division of Cell Signalling & Immunology, College of Life Sciences, University of Dundee, Dundee, Scotland, UK, DD1 5EH
| | - Hannah E Richards
- Division of Cell Signalling & Immunology, College of Life Sciences, University of Dundee, Dundee, Scotland, UK, DD1 5EH
| | - Paul R Crocker
- Division of Cell Signalling & Immunology, College of Life Sciences, University of Dundee, Dundee, Scotland, UK, DD1 5EH.
| |
Collapse
|
25
|
Patnode ML, Cheng CW, Chou CC, Singer MS, Elin MS, Uchimura K, Crocker PR, Khoo KH, Rosen SD. Galactose 6-O-sulfotransferases are not required for the generation of Siglec-F ligands in leukocytes or lung tissue. J Biol Chem 2013; 288:26533-45. [PMID: 23880769 PMCID: PMC3772201 DOI: 10.1074/jbc.m113.485409] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 07/21/2013] [Indexed: 12/17/2022] Open
Abstract
Eosinophil accumulation is a characteristic feature of the immune response to parasitic worms and allergens. The cell surface carbohydrate-binding receptor Siglec-F is highly expressed on eosinophils and negatively regulates their accumulation during inflammation. Although endogenous ligands for Siglec-F have yet to be biochemically defined, binding studies using glycan arrays have implicated galactose 6-O-sulfate (Gal6S) as a partial recognition determinant for this receptor. Only two sulfotransferases are known to generate Gal6S, namely keratan sulfate galactose 6-O-sulfotransferase (KSGal6ST) and chondroitin 6-O-sulfotransferase 1 (C6ST-1). Here we use mice deficient in both KSGal6ST and C6ST-1 to determine whether these sulfotransferases are required for the generation of endogenous Siglec-F ligands. First, we characterize ligand expression on leukocyte populations and find that ligands are predominantly expressed on cell types also expressing Siglec-F, namely eosinophils, neutrophils, and alveolar macrophages. We also detect Siglec-F ligand activity in bronchoalveolar lavage fluid fractions containing polymeric secreted mucins, including MUC5B. Consistent with these observations, ligands in the lung increase dramatically during infection with the parasitic nematode, Nippostrongylus brasiliensis, which is known to induce eosinophil accumulation and mucus production. Surprisingly, Gal6S is undetectable in sialylated glycans from eosinophils and BAL fluid analyzed by mass spectrometry. Furthermore, none of the ligands we describe are diminished in mice lacking KSGal6ST and C6ST-1, indicating that neither of the known galactose 6-O-sulfotransferases is required for ligand synthesis. These results establish that ligands for Siglec-F are present on several cell types that are relevant during allergic lung inflammation and argue against the widely held view that Gal6S is critical for glycan recognition by this receptor.
Collapse
Affiliation(s)
- Michael L. Patnode
- From the Department of Anatomy and Program in Biomedical Sciences, University of California, San Francisco, California 94143-0452
| | - Chu-Wen Cheng
- the Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Chi-Chi Chou
- the Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Mark S. Singer
- From the Department of Anatomy and Program in Biomedical Sciences, University of California, San Francisco, California 94143-0452
| | - Matilda S. Elin
- From the Department of Anatomy and Program in Biomedical Sciences, University of California, San Francisco, California 94143-0452
| | - Kenji Uchimura
- the Department of Biochemistry, Nagoya University Graduate School of Medicine, Aichi 466-8550, Japan
| | - Paul R. Crocker
- the Division of Cell Signaling and Immunology, College of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, United Kingdom, and
| | - Kay-Hooi Khoo
- the Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Steven D. Rosen
- From the Department of Anatomy and Program in Biomedical Sciences, University of California, San Francisco, California 94143-0452
| |
Collapse
|