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Weidner J, Kolosionek E, Holmila R, Ax E, Garreau M, Gnerlich F, Olsson H, Czechtizky W, Vollmer S, Rydzik AM. Gymnotic uptake of AntimiRs alter microRNA-34a levels in 2D and 3D epithelial cell culture. Mol Ther Nucleic Acids 2023; 33:898-907. [PMID: 37680982 PMCID: PMC10480572 DOI: 10.1016/j.omtn.2023.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/14/2023] [Indexed: 09/09/2023]
Abstract
MicroRNAs are attractive therapeutic targets in many diseases, including chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis. Among microRNA inhibitors antimiRs have been proven successful in lowering aberrant microRNA levels in the clinic. We present a set of antimiRs targeting miR-34a, which has been shown to be dysregulated in chronic lung diseases. The tool compounds were taken up by a bronchial epithelial cell line and primary human bronchial epithelial cells, followed by efficient knockdown of miR-34a. Similar results were observed in 3D differentiated primary human bronchial epithelial cells cultured at the air-liquid interface. Varying chemical properties of antimiRs had significant impact on cellular uptake and potency, resulting in effective tool compounds for use in lung-relevant cellular systems. This report demonstrates gymnotic antimiR uptake and activity in 3D epithelial cell culture after apical administration, mimicking inhalation conditions.
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Affiliation(s)
- Julie Weidner
- Translational Science Experimental Medicine, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Ewa Kolosionek
- Bioscience COPD/IPF, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Reetta Holmila
- Bioscience COPD/IPF, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Elisabeth Ax
- Translational Science Experimental Medicine, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Marion Garreau
- Medicinal Chemistry, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Felix Gnerlich
- Medicinal Chemistry, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Henric Olsson
- Translational Science Experimental Medicine, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Werngard Czechtizky
- Medicinal Chemistry, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Stefan Vollmer
- Bioscience COPD/IPF, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
| | - Anna M. Rydzik
- Medicinal Chemistry, Research & Early Development, Respiratory & Immunology, BioPharmaceutical R&D, AstraZeneca, 431 83 Mölndal, Sweden
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Winslow S, Odqvist L, Diver S, Riise R, Abdillahi S, Wingren C, Lindmark H, Wellner A, Lundin S, Yrlid L, Ax E, Djukanovic R, Sridhar S, Higham A, Singh D, Southworth T, Brightling CE, Olsson HK, Jevnikar Z. Multi-omics links IL-6 trans-signalling with neutrophil extracellular trap formation and Haemophilus infection in COPD. Eur Respir J 2021; 58:13993003.03312-2020. [PMID: 33766947 DOI: 10.1183/13993003.03312-2020] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 03/04/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND IL-6 trans-signalling (IL-6TS) is emerging as a pathogenic mechanism in chronic respiratory diseases, however the drivers of IL-6TS in the airways and the phenotypic characteristic of patients with increased IL-6TS pathway activation remain poorly understood. OBJECTIVE Our aim was to identify and characterize COPD patients with increased airway IL-6TS and to elucidate the biological drivers of IL-6TS pathway activation. METHODS We used an IL-6TS-specific sputum biomarker profile (sIL-6R, IL-6, IL-1β, IL-8, MIP-1β) to stratify sputum data from patients with COPD (n=74; BEAT-COPD) by hierarchical clustering. The IL-6TS signature was related to clinical characteristics and sputum microbiome profiles. The induction of neutrophil extracellular trap formation (NETosis) and IL-6TS by Haemophilus influenzae were studied in human neutrophils. RESULTS Hierarchical clustering revealed an IL-6TS-high subset (n=24) of COPD patients, which shared phenotypic traits with an IL-6TS-high subset previously identified in asthma. The subset was characterized by increased sputum cell counts (p=0.0001), persistent sputum neutrophilia (p=0.0004), reduced quality of life (CRQ total score; p=0.008), and increased levels of pro-inflammatory mediators and MMPs in sputum. IL-6TS-high COPD patients showed an increase in Proteobacteria, with Haemophilus as the dominating genus. NETosis induced by H. influenzae was identified as a potential mechanism for increased soluble IL-6 receptor (sIL-6R) levels. This was supported by a significant positive correlation between sIL-6R and NETosis markers in bronchoalveolar lavage fluid from COPD patients. CONCLUSION IL-6TS pathway activation due to chronic colonization with Haemophilus may be an important disease driver in a subset of COPD patients.
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Affiliation(s)
- Sofia Winslow
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Lina Odqvist
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Sarah Diver
- Department of Respiratory Science, Institute for Lung Health, NIHR Leicester Biomedical Research Centre, University of Leicester and University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Rebecca Riise
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Suado Abdillahi
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Cecilia Wingren
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Helena Lindmark
- Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Annika Wellner
- Medicinal Chemistry, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Sofia Lundin
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Linda Yrlid
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Elisabeth Ax
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden.,Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ratko Djukanovic
- NIHR Southampton Respiratory Biomedical Research Unit, Clinical and Experimental Sciences and Human Development and Health, University of Southampton, Southampton, UK
| | - Sriram Sridhar
- Oncology Bioinformatics, Translational Science, Early Oncology, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Andrew Higham
- The University of Manchester Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester and University Hospital of South Manchester, NHS Foundation Trust, Manchester, UK
| | - Dave Singh
- The University of Manchester Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester and University Hospital of South Manchester, NHS Foundation Trust, Manchester, UK
| | - Thomas Southworth
- The University of Manchester Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester and University Hospital of South Manchester, NHS Foundation Trust, Manchester, UK
| | - Christopher E Brightling
- Department of Respiratory Science, Institute for Lung Health, NIHR Leicester Biomedical Research Centre, University of Leicester and University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Henric K Olsson
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Zala Jevnikar
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
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Ax E, Jevnikar Z, Cvjetkovic A, Malmhäll C, Olsson H, Rådinger M, Lässer C. T2 and T17 cytokines alter the cargo and function of airway epithelium-derived extracellular vesicles. Respir Res 2020; 21:155. [PMID: 32560723 PMCID: PMC7304225 DOI: 10.1186/s12931-020-01402-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/19/2020] [Indexed: 02/07/2023] Open
Abstract
Background Asthma is a common and heterogeneous disease that includes subgroups characterized by type 2 (T2) or type 17 (T17) immune responses for which there is a need to identify the underlying mechanisms and biomarkers in order to develop specific therapies. These subgroups can be defined by airway epithelium gene signatures and the airway epithelium has also been implicated to play a significant role in asthma pathology. Extracellular vesicles (EVs) carry functional biomolecules and participate in cell-to-cell communication in both health and disease, properties that are likely to be involved in airway diseases such as asthma. The aim of this study was to identify stimulus-specific proteins and functionality of bronchial epithelium-derived EVs following stimulation with T2 or T17 cytokines. Methods EVs from cytokine-stimulated (T2: IL-4 + IL-13 or T17: IL-17A + TNFα) human bronchial epithelial cells cultured at air-liquid interface (HBEC-ALI) were isolated by density cushion centrifugation and size exclusion chromatography and characterized with Western blotting and electron microscopy. Transcriptomic (cells) and proteomic (EVs) profiling was also performed. Results Our data shows that EVs are secreted and can be isolated from the apical side of HBEC-ALI and that cytokine stimulation increases EV release. Genes upregulated in cells stimulated with T2 or T17 cytokines were increased also on protein level in the EVs. Proteins found in T17-derived EVs were suggested to be involved in pathways related to neutrophil movement which was supported by assessing neutrophil chemotaxis ex vivo. Conclusions Together, the results suggest that epithelial EVs are involved in airway inflammation and that the EV proteome may be used for discovery of disease-specific mechanisms and signatures which may enable a precision medicine approach to the treatment of asthma.
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Affiliation(s)
- Elisabeth Ax
- Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Translational Science and Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Zala Jevnikar
- Translational Science and Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Aleksander Cvjetkovic
- Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Carina Malmhäll
- Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Henric Olsson
- Translational Science and Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Madeleine Rådinger
- Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Cecilia Lässer
- Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
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Jevnikar Z, Östling J, Ax E, Calvén J, Thörn K, Israelsson E, Öberg L, Singhania A, Lau LCK, Wilson SJ, Ward JA, Chauhan A, Sousa AR, De Meulder B, Loza MJ, Baribaud F, Sterk PJ, Chung KF, Sun K, Guo Y, Adcock IM, Payne D, Dahlen B, Chanez P, Shaw DE, Krug N, Hohlfeld JM, Sandström T, Djukanovic R, James A, Hinks TSC, Howarth PH, Vaarala O, van Geest M, Olsson H. Epithelial IL-6 trans-signaling defines a new asthma phenotype with increased airway inflammation. J Allergy Clin Immunol 2018; 143:577-590. [PMID: 29902480 DOI: 10.1016/j.jaci.2018.05.026] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 04/15/2018] [Accepted: 05/04/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND Although several studies link high levels of IL-6 and soluble IL-6 receptor (sIL-6R) to asthma severity and decreased lung function, the role of IL-6 trans-signaling (IL-6TS) in asthmatic patients is unclear. OBJECTIVE We sought to explore the association between epithelial IL-6TS pathway activation and molecular and clinical phenotypes in asthmatic patients. METHODS An IL-6TS gene signature obtained from air-liquid interface cultures of human bronchial epithelial cells stimulated with IL-6 and sIL-6R was used to stratify lung epithelial transcriptomic data (Unbiased Biomarkers in Prediction of Respiratory Disease Outcomes [U-BIOPRED] cohorts) by means of hierarchical clustering. IL-6TS-specific protein markers were used to stratify sputum biomarker data (Wessex cohort). Molecular phenotyping was based on transcriptional profiling of epithelial brushings, pathway analysis, and immunohistochemical analysis of bronchial biopsy specimens. RESULTS Activation of IL-6TS in air-liquid interface cultures reduced epithelial integrity and induced a specific gene signature enriched in genes associated with airway remodeling. The IL-6TS signature identified a subset of patients with IL-6TS-high asthma with increased epithelial expression of IL-6TS-inducible genes in the absence of systemic inflammation. The IL-6TS-high subset had an overrepresentation of frequent exacerbators, blood eosinophilia, and submucosal infiltration of T cells and macrophages. In bronchial brushings Toll-like receptor pathway genes were upregulated, whereas expression of cell junction genes was reduced. Sputum sIL-6R and IL-6 levels correlated with sputum markers of remodeling and innate immune activation, in particular YKL-40, matrix metalloproteinase 3, macrophage inflammatory protein 1β, IL-8, and IL-1β. CONCLUSIONS Local lung epithelial IL-6TS activation in the absence of type 2 airway inflammation defines a novel subset of asthmatic patients and might drive airway inflammation and epithelial dysfunction in these patients.
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Affiliation(s)
- Zala Jevnikar
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden.
| | - Jörgen Östling
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Elisabeth Ax
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden; Department of Internal Medicine and Clinical Nutrition, Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Jenny Calvén
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Kristofer Thörn
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Elisabeth Israelsson
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Lisa Öberg
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Akul Singhania
- Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, Southampton University Hospital, Southampton, United Kingdom
| | - Laurie C K Lau
- Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, Southampton University Hospital, Southampton, United Kingdom
| | - Susan J Wilson
- Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, Southampton University Hospital, Southampton, United Kingdom; Histochemistry Research Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Jonathan A Ward
- Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, Southampton University Hospital, Southampton, United Kingdom; Histochemistry Research Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Anoop Chauhan
- Portsmouth Hospitals NHS Trust, Portsmouth, United Kingdom
| | - Ana R Sousa
- Discovery Medicine, GlaxoSmithKline, Brentford, United Kingdom
| | - Bertrand De Meulder
- European Institute for Systems Biology and Medicine, CIRI UMR5308, CNRS-ENS-UCBL-INSERM, Université de Lyon, Lyon, France
| | | | | | - Peter J Sterk
- Department of Respiratory Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, London UK & Royal Brompton Biomedical Research Unit at Royal Brompton and Harefield NHS Foundation Trust and Imperial College London, London, United Kingdom
| | - Kai Sun
- Department of Computing & Data Science Institute, Imperial College London, London, United Kingdom
| | - Yike Guo
- Department of Computing & Data Science Institute, Imperial College London, London, United Kingdom
| | - Ian M Adcock
- National Heart and Lung Institute, Imperial College London, London UK & Royal Brompton Biomedical Research Unit at Royal Brompton and Harefield NHS Foundation Trust and Imperial College London, London, United Kingdom
| | - Debbie Payne
- Centre for Integrated Genomic Medical Research, University of Manchester, Manchester, United Kingdom
| | - Barbro Dahlen
- Karolinska University Hospital & Centre for Allergy Research, Karolinska Institute, Stockholm, Sweden
| | | | - Dominick E Shaw
- Respiratory Biomedical Research Unit, University of Nottingham, Nottingham, United Kingdom
| | - Norbert Krug
- Fraunhofer Institute of Toxicology and Experimental Medicine, Member of the German Center for Lung Research, Hannover, Germany
| | - Jens M Hohlfeld
- Fraunhofer Institute of Toxicology and Experimental Medicine, Member of the German Center for Lung Research, Hannover, Germany; Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
| | - Thomas Sandström
- Department of Public Health and Clinical Medicine, Medicine, Umeå University, Umeå, Sweden
| | - Ratko Djukanovic
- NIHR Southampton Respiratory Biomedical Research Unit, Southampton University Hospital, Southampton, United Kingdom
| | - Anna James
- Experimental Asthma and Allergy Research, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Timothy S C Hinks
- Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, Southampton University Hospital, Southampton, United Kingdom; NIHR Southampton Respiratory Biomedical Research Unit, Southampton University Hospital, Southampton, United Kingdom; Respiratory Medicine Unit, NDM Experimental Medicine, University of OxfordJohn Radcliffe Hospital, Oxford, United Kingdom
| | - Peter H Howarth
- Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, Southampton University Hospital, Southampton, United Kingdom; NIHR Southampton Respiratory Biomedical Research Unit, Southampton University Hospital, Southampton, United Kingdom
| | - Outi Vaarala
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Marleen van Geest
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Henric Olsson
- Department of Bioscience, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
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Jansson AM, Csiszar A, Maier J, Nyström AC, Ax E, Johansson P, Schiavone LH. The interleukin-like epithelial-mesenchymal transition inducer ILEI exhibits a non-interleukin-like fold and is active as a domain-swapped dimer. J Biol Chem 2017; 292:15501-15511. [PMID: 28751379 DOI: 10.1074/jbc.m117.782904] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 07/12/2017] [Indexed: 01/07/2023] Open
Abstract
Production and secretion of pro-metastatic proteins is a feature of many tumor cells. The FAM3C interleukin-like epithelial-to-mesenchymal-transition (EMT) inducer (ILEI) has been shown to be strongly up-regulated in several cancers and to be essential for tumor formation and metastasis in epithelial cells, correlating with a significant decrease in overall survival in colon and breast cancer patients. ILEI has been seen to interact with the γ-secretase presenilin 1 subunit (PS1). However, not much is known about the mechanism-of-action or the detailed ILEI structure. We present here the crystal structures of FAM3C ILEI and show that it exists as monomers but also as covalent dimers. The observed ILEI β-β-α fold confirmed previous indications that the FAM3C proteins do not form classical four-helix-bundle structures as was initially predicted. This provides the first experimental evidence that the interleukin-like EMT inducers are not evolutionarily related to the interleukins. However, more surprisingly, the ILEI dimer structure was found to feature a trans-linked domain swap, converting an intramolecular disulfide to intermolecular. Interestingly, dimeric but not monomeric ILEI was subsequently found to cause a dose-dependent increase in EpRas cell invasiveness comparable with TGF-β, indicating that the dimer might be the active ILEI species. This is in line with a parallel study showing that covalent oligomerization of ILEI is essential for EMT and tumor progression in vivo The structures and the activity data give some first insight into the relationship between dimerization and ILEI function as well as indicate an intriguing link between ILEI, the PS1-protease, TGF-β, and the TGF-β receptor 1.
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Affiliation(s)
- Anna M Jansson
- From the Reagents and Assay Development Division, Discovery Sciences Department
| | - Agnes Csiszar
- the Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Joachim Maier
- From the Reagents and Assay Development Division, Discovery Sciences Department
| | - Ann-Christin Nyström
- Translational Sciences Division, Cardiovascular and Metabolic Diseases Department, and
| | - Elisabeth Ax
- From the Reagents and Assay Development Division, Discovery Sciences Department
| | - Patrik Johansson
- Structure and Biophysics Division, Discovery Sciences Department, AstraZeneca, Pepparedsleden 1, 431 83 Mölndal, Sweden and
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Karlsson SL, Ax E, Nygren E, Källgård S, Blomquist M, Ekman A, Benktander J, Holmgren J, Lebens M. Development of stable Vibrio cholerae O1 Hikojima type vaccine strains co-expressing the Inaba and Ogawa lipopolysaccharide antigens. PLoS One 2014; 9:e108521. [PMID: 25397871 PMCID: PMC4232259 DOI: 10.1371/journal.pone.0108521] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Accepted: 08/21/2014] [Indexed: 11/19/2022] Open
Abstract
We describe here the development of stable classical and El Tor V. cholerae O1 strains of the Hikojima serotype that co–express the Inaba and Ogawa antigens of O1 lipopolysaccharide (LPS). Mutation of the wbeT gene reduced LPS perosamine methylation and thereby gave only partial transformation into Ogawa LPS on the cell surface. The strains express approximately equal amounts of Inaba– and Ogawa–LPS antigens which are preserved after formalin–inactivation of the bacteria. Oral immunizations of both inbred and outbred mice with formalin–inactivated whole–cell vaccine preparations of these strains elicited strong intestinal IgA anti–LPS as well as serum vibriocidal antibody responses against both Inaba and Ogawa that were fully comparable to the responses induced by the licensed Dukoral vaccine. Passive protection studies in infant mice showed that immune sera raised against either of the novel Hikojima vaccine strains protected baby mice against infection with virulent strains of both serotypes. This study illustrates the power of using genetic manipulation to improve the properties of bacteria strains for use in killed whole–cell vaccines.
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Affiliation(s)
- Stefan L. Karlsson
- Department of Microbiology and Immunology at Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Elisabeth Ax
- Department of Microbiology and Immunology at Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Erik Nygren
- Department of Microbiology and Immunology at Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Susanne Källgård
- Department of Microbiology and Immunology at Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Margareta Blomquist
- Department of Microbiology and Immunology at Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Annelie Ekman
- Department of Microbiology and Immunology at Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - John Benktander
- Department of Medical Biochemistry and Cell Biology at Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Jan Holmgren
- Department of Microbiology and Immunology at Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Michael Lebens
- Department of Microbiology and Immunology at Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- * E-mail:
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Kaboth W, Ax E, Fischer H. [Immunologic studies on the omentum. II. On the immunomorphology of plaque forming milk spots in the mouse omentum]. Z Naturforsch B 1966; 21:789-93. [PMID: 4384173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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