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Abelson KSP, Chambers C, De La Cueva T, Fisher G, Hawkins P, Ntafis V, Pohlig PF, Rooymans TP, Santos AI. Harmonisation of education, training and continuing professional development for laboratory animal caretakers, technicians and technologists: Report of the FELASA-EFAT Working Group. Lab Anim 2023; 57:599-610. [PMID: 37334769 PMCID: PMC10693723 DOI: 10.1177/00236772231175550] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/22/2023] [Indexed: 06/20/2023]
Abstract
Competent, confident and caring laboratory animal caretakers, technicians and technologists (LAS staff) are vital for good animal welfare, high-quality science and a secure Culture of Care. This requires high-quality education, training, supervision and continuing professional development (CPD) of LAS staff. However, there is a lack of harmonisation regarding how this education and training is conducted among European countries, and nor are there recommendations adapted to Directive 2010/63/EU. Therefore, FELASA and EFAT established a working group with the task of establishing recommendations for education, training and CPD for LAS staff. The working group established five different levels (LAS staff levels 0-4), defining the required level of competence and attitude, as well as suggesting educational requirements for reaching each level. Defining these levels should help to ensure that appropriate educational and CPD activities are in place, and to enable employers and LAS staff to determine the level and career stage attained. Furthermore, proper assessment of competencies and effective CPD schemes for all relevant staff should be established. Regulators should support this by setting standards for competence assessment and ensuring that they are consistently applied. In addition, establishments should involve the LAS staff in defining and developing the Culture of Care. The Animal Welfare Body should be involved and have oversight of education, training and CPD. These recommendations will contribute to harmonisation and increased quality of education, training and CPD, as well as provide clearer career pathways for LAS staff, helping to ensure high standards of animal welfare and science.
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Affiliation(s)
- Klas SP Abelson
- Department of Experimental Medicine, University of Copenhagen, Denmark
| | | | | | - Glyn Fisher
- European Federation of Animal Technologists, UK
| | | | - Vasileios Ntafis
- Institute of Fundamental Biomedical Research, Biomedical Sciences Research Centre ‘Alexander Fleming’, Greece
| | - Paul F Pohlig
- Cluster of Excellence Cellular Stress Responses in Aging-Associated Diseases (CECAD), Faculty of Medicine and University Hospital Cologne, University of Cologne, Germany
- In Vivo Research Facility, Faculty of Medicine and University Hospital Cologne, University of Cologne, Germany
| | - T Pim Rooymans
- Veterinary Medicine, Utrecht University, The Netherlands
| | - Ana I Santos
- NOVA Medical School, NOVA University Lisbon, Portugal
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2
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Subramanian P, Gargani S, Palladini A, Chatzimike M, Grzybek M, Peitzsch M, Papanastasiou AD, Pyrina I, Ntafis V, Gercken B, Lesche M, Petzold A, Sinha A, Nati M, Thangapandi VR, Kourtzelis I, Andreadou M, Witt A, Dahl A, Burkhardt R, Haase R, Domingues AMDJ, Henry I, Zamboni N, Mirtschink P, Chung KJ, Hampe J, Coskun Ü, Kontoyiannis DL, Chavakis T. The RNA binding protein human antigen R is a gatekeeper of liver homeostasis. Hepatology 2022; 75:881-897. [PMID: 34519101 DOI: 10.1002/hep.32153] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS NAFLD is initiated by steatosis and can progress through fibrosis and cirrhosis to HCC. The RNA binding protein human antigen R (HuR) controls RNAs at the posttranscriptional level; hepatocyte HuR has been implicated in the regulation of diet-induced hepatic steatosis. The present study aimed to understand the role of hepatocyte HuR in NAFLD development and progression to fibrosis and HCC. APPROACH AND RESULTS Hepatocyte-specific, HuR-deficient mice and control HuR-sufficient mice were fed either a normal diet or an NAFLD-inducing diet. Hepatic lipid accumulation, inflammation, fibrosis, and HCC development were studied by histology, flow cytometry, quantitative PCR, and RNA sequencing. The liver lipidome was characterized by lipidomics analysis, and the HuR-RNA interactions in the liver were mapped by RNA immunoprecipitation sequencing. Hepatocyte-specific, HuR-deficient mice displayed spontaneous hepatic steatosis and fibrosis predisposition compared to control HuR-sufficient mice. On an NAFLD-inducing diet, hepatocyte-specific HuR deficiency resulted in exacerbated inflammation, fibrosis, and HCC-like tumor development. A multi-omic approach, including lipidomics, transcriptomics, and RNA immunoprecipitation sequencing revealed that HuR orchestrates a protective network of hepatic-metabolic and lipid homeostasis-maintaining pathways. Consistently, HuR-deficient livers accumulated, already at steady state, a triglyceride signature resembling that of NAFLD livers. Moreover, up-regulation of secreted phosphoprotein 1 expression mediated, at least partially, fibrosis development in hepatocyte-specific HuR deficiency on an NAFLD-inducing diet, as shown by experiments using antibody blockade of osteopontin. CONCLUSIONS HuR is a gatekeeper of liver homeostasis, preventing NAFLD-related fibrosis and HCC, suggesting that the HuR-dependent network could be exploited therapeutically.
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Affiliation(s)
- Pallavi Subramanian
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany
| | - Sofia Gargani
- Institute for Fundamental Biomedical Research (IFBR), Biomedical Sciences Research Centre "Alexander Fleming"VariGreece
| | - Alessandra Palladini
- Paul Langerhans Institute Dresden, Helmholtz Zentrum München, University Hospital and Faculty of MedicineTechnische Universität DresdenDresdenGermany.,German Center for Diabetes ResearchNeuherbergGermany
| | - Margarita Chatzimike
- Institute for Fundamental Biomedical Research (IFBR), Biomedical Sciences Research Centre "Alexander Fleming"VariGreece
| | - Michal Grzybek
- Paul Langerhans Institute Dresden, Helmholtz Zentrum München, University Hospital and Faculty of MedicineTechnische Universität DresdenDresdenGermany.,German Center for Diabetes ResearchNeuherbergGermany
| | - Mirko Peitzsch
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany
| | - Anastasios D Papanastasiou
- Department of Biomedical SciencesUniversity of West AtticaAthensGreece.,Histopathology UnitBiomedical Sciences Research Center "Alexander Fleming"VariGreece
| | - Iryna Pyrina
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany
| | - Vasileios Ntafis
- Institute for Fundamental Biomedical Research (IFBR), Biomedical Sciences Research Centre "Alexander Fleming"VariGreece
| | - Bettina Gercken
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany
| | - Mathias Lesche
- DRESDEN-concept Genome CenterCenter for Molecular and Cellular BioengineeringTechnische Universität DresdenDresdenGermany
| | - Andreas Petzold
- DRESDEN-concept Genome CenterCenter for Molecular and Cellular BioengineeringTechnische Universität DresdenDresdenGermany
| | - Anupam Sinha
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany
| | - Marina Nati
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany
| | - Veera Raghavan Thangapandi
- Department of Internal Medicine IUniversity Hospital and Faculty of Medicine, Technische Universität DresdenDresdenGermany
| | - Ioannis Kourtzelis
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany.,National Center for Tumor DiseasesPartner Site Dresden, Dresden and German Cancer Research CenterHeidelbergGermany.,York Biomedical Research Institute, Hull York Medical SchoolUniversity of YorkYorkUK
| | - Margarita Andreadou
- Institute for Fundamental Biomedical Research (IFBR), Biomedical Sciences Research Centre "Alexander Fleming"VariGreece
| | - Anke Witt
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany
| | - Andreas Dahl
- DRESDEN-concept Genome CenterCenter for Molecular and Cellular BioengineeringTechnische Universität DresdenDresdenGermany
| | - Ralph Burkhardt
- Institute of Clinical Chemistry and Laboratory MedicineUniversity Hospital RegensburgRegensburgGermany
| | - Robert Haase
- Scientific Computing FacilityMax Planck Institute of Molecular Cell Biology and GeneticsDresdenGermany
| | | | - Ian Henry
- Scientific Computing FacilityMax Planck Institute of Molecular Cell Biology and GeneticsDresdenGermany
| | - Nicola Zamboni
- Institute of Molecular Systems BiologyETH ZurichZurichSwitzerland
| | - Peter Mirtschink
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany
| | - Kyoung-Jin Chung
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany
| | - Jochen Hampe
- Department of Internal Medicine IUniversity Hospital and Faculty of Medicine, Technische Universität DresdenDresdenGermany
| | - Ünal Coskun
- Paul Langerhans Institute Dresden, Helmholtz Zentrum München, University Hospital and Faculty of MedicineTechnische Universität DresdenDresdenGermany.,German Center for Diabetes ResearchNeuherbergGermany
| | - Dimitris L Kontoyiannis
- Institute for Fundamental Biomedical Research (IFBR), Biomedical Sciences Research Centre "Alexander Fleming"VariGreece.,Department of Genetics, Development & Molecular Biology, School of BiologyAristotle University of ThessalonikiThessalonikiGreece
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität DresdenDresdenGermany.,Paul Langerhans Institute Dresden, Helmholtz Zentrum München, University Hospital and Faculty of MedicineTechnische Universität DresdenDresdenGermany.,German Center for Diabetes ResearchNeuherbergGermany.,National Center for Tumor DiseasesPartner Site Dresden, Dresden and German Cancer Research CenterHeidelbergGermany
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3
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Ehlich H, Cater HL, Flenniken AM, Goncalves Da Cruz I, Mura AM, Ntafis V, Raess M, Selloum M, Stoeger C, Suchanova S, Vuolteenaho R, Brown SDM, Hérault Y, Hinttala R, Hrabě de Angelis M, Kollias G, Kontoyiannis DL, Malissen B, McKerlie C, Sedláček R, Wells SE, Zarubica A, Rozman J, Sorg T. INFRAFRONTIER quality principles in systemic phenotyping. Mamm Genome 2022; 33:120-122. [PMID: 34328547 PMCID: PMC8913563 DOI: 10.1007/s00335-021-09892-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/30/2021] [Indexed: 11/06/2022]
Abstract
Improving reproducibility and replicability in preclinical research is a widely discussed and pertinent topic, especially regarding ethical responsibility in animal research. INFRAFRONTIER, the European Research Infrastructure for the generation, phenotyping, archiving, and distribution of model mammalian genomes, is addressing this issue by developing internal quality principles for its different service areas, that provides a quality framework for its operational activities. This article introduces the INFRAFRONTIER Quality Principles in Systemic Phenotyping of genetically altered mouse models. A total of 11 key principles are included, ranging from general requirements for compliance with guidelines on animal testing, to the need for well-trained personnel and more specific standards such as the exchange of reference lines. Recently established requirements such as the provision of FAIR (Findable, Accessible, Interoperable, Reusable) data are also addressed. For each quality principle, we have outlined the specific context, requirements, further recommendations, and key references.
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Affiliation(s)
| | - Heather L Cater
- MRC Harwell Institute, Mary Lyon Centre, Harwell Campus, Oxfordshire, UK
| | - Ann M Flenniken
- Lunenfeld-Tanenbaum Research Institute, Sinai Health, Toronto, ON, Canada.,The Centre for Phenogenomics, Toronto, ON, Canada
| | - Isabelle Goncalves Da Cruz
- Universite de Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, Institut Clinique de La Souris, Illkirch, France
| | - Anne-Marie Mura
- Centre d'Immunophénomique (CIPHE), Aix Marseille Université, INSERM, CNRS, CELPHEDIA, PHENOMIN, Marseille, France
| | - Vasileios Ntafis
- Biomedical Sciences Research Center "Alexander Fleming", Athens, Greece
| | | | - Mohammed Selloum
- Universite de Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, Institut Clinique de La Souris, Illkirch, France
| | - Claudia Stoeger
- Helmholtz Zentrum München, Institute of Experimental Genetics, German Mouse Clinic, Neuherberg, Germany
| | - Sarka Suchanova
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Reetta Vuolteenaho
- University of Oulu, Biocenter Oulu, Transgenic and Tissue Phenotyping Core Facility, Oulu, Finland
| | - Steve D M Brown
- MRC Harwell Institute, Mammalian Genetics Unit, Medical Research Council, Harwell Campus, Oxfordshire, UK
| | - Yann Hérault
- Universite de Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, Institut Clinique de La Souris, Illkirch, France
| | - Reetta Hinttala
- University of Oulu, Biocenter Oulu, Transgenic and Tissue Phenotyping Core Facility, Oulu, Finland.,University of Oulu and Oulu University Hospital, PEDEGO Research Unit and Medical Research Center Oulu, Oulu, Finland
| | - Martin Hrabě de Angelis
- INFRAFRONTIER GmbH, Neuherberg, Germany.,Helmholtz Zentrum München, Institute of Experimental Genetics, German Mouse Clinic, Neuherberg, Germany.,German Center for Diabetes Research (DZD), Neuherberg, Germany.,Technische Universität München, Chair of Experimental Genetics, TUM School of Life Sciences, Freising, Germany
| | - George Kollias
- Biomedical Sciences Research Center "Alexander Fleming", Athens, Greece
| | | | - Bernard Malissen
- Centre d'Immunophénomique (CIPHE), Aix Marseille Université, INSERM, CNRS, CELPHEDIA, PHENOMIN, Marseille, France
| | - Colin McKerlie
- The Hospital for Sick Children, Toronto, ON, Canada.,The Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Radislav Sedláček
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Sara E Wells
- MRC Harwell Institute, Mary Lyon Centre, Harwell Campus, Oxfordshire, UK
| | - Ana Zarubica
- Centre d'Immunophénomique (CIPHE), Aix Marseille Université, INSERM, CNRS, CELPHEDIA, PHENOMIN, Marseille, France
| | - Jan Rozman
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic.
| | - Tania Sorg
- Universite de Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, Institut Clinique de La Souris, Illkirch, France.
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4
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Gargani S, Lourou N, Arapatzi C, Tzanos D, Saridaki M, Dushku E, Chatzimike M, Sidiropoulos ND, Andreadou M, Ntafis V, Hatzis P, Kostourou V, Kontoyiannis DL. Inactivation of AUF1 in Myeloid Cells Protects From Allergic Airway and Tumor Infiltration and Impairs the Adenosine-Induced Polarization of Pro-Angiogenic Macrophages. Front Immunol 2022; 13:752215. [PMID: 35222366 PMCID: PMC8873154 DOI: 10.3389/fimmu.2022.752215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 08/02/2021] [Accepted: 01/21/2022] [Indexed: 11/13/2022] Open
Abstract
The four isoforms of the RNA-binding protein hnRNPD/AUF1 have been proposed to limit the use of inflammatory mRNAs in innate immune cells. Mice engineered to lack AUF1s in all tissues are sensitive to acute inflammatory assaults; however, they also manifest complex degenerations obscuring assessment of AUF1s’ roles in innate immune cells. Here, we restricted a debilitating AUF1 mutation to the mouse myeloid lineage and performed disease-oriented phenotypic analyses to assess the requirement of AUF1s in variable contexts of innate immune reactivity. Contrary to the whole-body mutants, the myeloid mutants of AUF1s did not show differences in their susceptibility to cytokine storms occurring during endotoxemia; neither in type-I cell-mediated reactions driving intestinal inflammation by chemical irritants. Instead, they were resistant to allergic airway inflammation and displayed reductions in inflammatory infiltrates and an altered T-helper balance. The ex-vivo analysis of macrophages revealed that the loss of AUF1s had a minimal effect on their proinflammatory gene expression. Moreover, AUF1s were dispensable for the classical polarization of cultured macrophages by LPS & IFNγ correlating with the unchanged response of mutant mice to systemic and intestinal inflammation. Notably, AUF1s were also dispensable for the alternative polarization of macrophages by IL4, TGFβ and IL10, known to be engaged in allergic reactions. In contrast, they were required to switch proinflammatory macrophages towards a pro-angiogenic phenotype induced by adenosine receptor signals. Congruent to this, the myeloid mutants of AUF1 displayed lower levels of vascular remodeling factors in exudates from allergen exposed lungs; were unable to support the growth and inflammatory infiltration of transplanted melanoma tumors; and failed to vascularize inert grafts unless supplemented with angiogenic factors. Mechanistically, adenosine receptor signals enhanced the association of AUF1s with the Vegfa, Il12b, and Tnf mRNAs to differentially regulate and facilitate the pro-angiogenic switch. Our data collectively demonstrates that AUF1s do not act as general anti-inflammatory factors in innate immune cells but have more specialized roles in regulons allowing specific innate immune cell transitions to support tissue infiltration and remodeling processes.
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Affiliation(s)
- Sofia Gargani
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Niki Lourou
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christina Arapatzi
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
| | - Dimitris Tzanos
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
| | - Marania Saridaki
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
| | - Esmeralda Dushku
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Margarita Chatzimike
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
| | - Nikolaos D. Sidiropoulos
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Margarita Andreadou
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
| | - Vasileios Ntafis
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
| | - Pantelis Hatzis
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
| | - Vassiliki Kostourou
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
| | - Dimitris L. Kontoyiannis
- Biomedical Sciences Research Centre “Alexander Fleming”, Institute of Fundamental Biomedical Research, Vari, Greece
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- *Correspondence: Dimitris L. Kontoyiannis, ;
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5
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Kerdidani D, Aerakis E, Verrou KM, Angelidis I, Douka K, Maniou MA, Stamoulis P, Goudevenou K, Prados A, Tzaferis C, Ntafis V, Vamvakaris I, Kaniaris E, Vachlas K, Sepsas E, Koutsopoulos A, Potaris K, Tsoumakidou M. Lung tumor MHCII immunity depends on in situ antigen presentation by fibroblasts. J Exp Med 2022; 219:212965. [PMID: 35029648 PMCID: PMC8764966 DOI: 10.1084/jem.20210815] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 11/18/2021] [Accepted: 12/16/2021] [Indexed: 12/14/2022] Open
Abstract
A key unknown of the functional space in tumor immunity is whether CD4 T cells depend on intratumoral MHCII cancer antigen recognition. MHCII-expressing, antigen-presenting cancer-associated fibroblasts (apCAFs) have been found in breast and pancreatic tumors and are considered to be immunosuppressive. This analysis shows that antigen-presenting fibroblasts are frequent in human lung non-small cell carcinomas, where they seem to actively promote rather than suppress MHCII immunity. Lung apCAFs directly activated the TCRs of effector CD4 T cells and at the same time produced C1q, which acted on T cell C1qbp to rescue them from apoptosis. Fibroblast-specific MHCII or C1q deletion impaired CD4 T cell immunity and accelerated tumor growth, while inducing C1qbp in adoptively transferred CD4 T cells expanded their numbers and reduced tumors. Collectively, we have characterized in the lungs a subset of antigen-presenting fibroblasts with tumor-suppressive properties and propose that cancer immunotherapies might be strongly dependent on in situ MHCII antigen presentation.
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Affiliation(s)
- Dimitra Kerdidani
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece
| | - Emmanouil Aerakis
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece
| | - Kleio-Maria Verrou
- Greek Research Infrastructure for Personalized Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Ilias Angelidis
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece
| | - Katerina Douka
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece
| | - Maria-Anna Maniou
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece
| | - Petros Stamoulis
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece
| | - Katerina Goudevenou
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece
| | - Alejandro Prados
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece
| | - Christos Tzaferis
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece.,Greek Research Infrastructure for Personalized Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Vasileios Ntafis
- Animal House Facility, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece
| | | | - Evangelos Kaniaris
- Department of Respiratory Medicine, Sotiria Chest Hospital, Athens, Greece
| | | | - Evangelos Sepsas
- Department of Thoracic Surgery, Sotiria Chest Hospital, Athens, Greece
| | | | | | - Maria Tsoumakidou
- Institute of Bioinnovation, Biomedical Sciences Research Center "Alexander Fleming," Vari, Greece.,Greek Research Infrastructure for Personalized Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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6
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Gkikopoulou E, Kolokotroni A, Rinotas V, Dragolia M, Ntafis V, Rauner M, Douni E. Studying the role of RANKL in breast cancer and bone metastasis mouse models. Bone Rep 2021. [DOI: 10.1016/j.bonr.2021.100900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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7
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Rinotas V, Ntouskou ED, Dragolia M, Ntafis V, Yavropoulou M, Anastasilakis A, Makras P, Douni E. Investigating Denosumab discontinuation in the TgRANKL osteoporotic mouse model. Bone Rep 2021. [DOI: 10.1016/j.bonr.2021.100782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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8
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Gagliano T, Shah K, Gargani S, Lao L, Alsaleem M, Chen J, Ntafis V, Huang P, Ditsiou A, Vella V, Yadav K, Bienkowska K, Bresciani G, Kang K, Li L, Carter P, Benstead-Hume G, O’Hanlon T, Dean M, Pearl FM, Lee SC, Rakha EA, Green AR, Kontoyiannis DL, Song E, Stebbing J, Giamas G. PIK3Cδ expression by fibroblasts promotes triple-negative breast cancer progression. J Clin Invest 2020; 130:3188-3204. [PMID: 32125284 PMCID: PMC7260014 DOI: 10.1172/jci128313] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 02/27/2020] [Indexed: 12/28/2022] Open
Abstract
As there is growing evidence for the tumor microenvironment's role in tumorigenesis, we investigated the role of fibroblast-expressed kinases in triple-negative breast cancer (TNBC). Using a high-throughput kinome screen combined with 3D invasion assays, we identified fibroblast-expressed PIK3Cδ (f-PIK3Cδ) as a key regulator of cancer progression. Although PIK3Cδ was expressed in primary fibroblasts derived from TNBC patients, it was barely detectable in breast cancer (BC) cell lines. Genetic and pharmacological gain- and loss-of-function experiments verified the contribution of f-PIK3Cδ in TNBC cell invasion. Integrated secretomics and transcriptomics analyses revealed a paracrine mechanism via which f-PIK3Cδ confers its protumorigenic effects. Inhibition of f-PIK3Cδ promoted the secretion of factors, including PLGF and BDNF, that led to upregulation of NR4A1 in TNBC cells, where it acts as a tumor suppressor. Inhibition of PIK3Cδ in an orthotopic BC mouse model reduced tumor growth only after inoculation with fibroblasts, indicating a role of f-PIK3Cδ in cancer progression. Similar results were observed in the MMTV-PyMT transgenic BC mouse model, along with a decrease in tumor metastasis, emphasizing the potential immune-independent effects of PIK3Cδ inhibition. Finally, analysis of BC patient cohorts and TCGA data sets identified f-PIK3Cδ (protein and mRNA levels) as an independent prognostic factor for overall and disease-free survival, highlighting it as a therapeutic target for TNBC.
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Affiliation(s)
- Teresa Gagliano
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Falmer, Brighton, United Kingdom
| | - Kalpit Shah
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Sofia Gargani
- Division of Immunology, Biomedical Sciences Research Center Alexander Fleming, Vari, Greece
| | - Liyan Lao
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Mansour Alsaleem
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Nottingham City Hospital, University of Nottingham, Nottingham, United Kingdom
| | - Jianing Chen
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Vasileios Ntafis
- Division of Immunology, Biomedical Sciences Research Center Alexander Fleming, Vari, Greece
| | - Penghan Huang
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Angeliki Ditsiou
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Falmer, Brighton, United Kingdom
| | - Viviana Vella
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Falmer, Brighton, United Kingdom
| | - Kritika Yadav
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Kamila Bienkowska
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Falmer, Brighton, United Kingdom
| | - Giulia Bresciani
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Falmer, Brighton, United Kingdom
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Kai Kang
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, NIH, Durham, North Carolina, USA
| | - Leping Li
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, NIH, Durham, North Carolina, USA
| | - Philip Carter
- Division of Cancer, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, United Kingdom
| | - Graeme Benstead-Hume
- Bioinformatics Group, School of Life Sciences, University of Sussex, Falmer, Brighton, United Kingdom
| | - Timothy O’Hanlon
- Cancer Genomics Research Laboratory, Frederick National Laboratory for Cancer Research, Bethesda, Maryland, USA
| | - Michael Dean
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Frances M.G. Pearl
- Bioinformatics Group, School of Life Sciences, University of Sussex, Falmer, Brighton, United Kingdom
| | - Soo-Chin Lee
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Haematology-Oncology, National University Cancer Institute, Singapore
- National University Health System, Singapore
| | - Emad A. Rakha
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Nottingham City Hospital, University of Nottingham, Nottingham, United Kingdom
| | - Andrew R. Green
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, Nottingham City Hospital, University of Nottingham, Nottingham, United Kingdom
| | - Dimitris L. Kontoyiannis
- Division of Immunology, Biomedical Sciences Research Center Alexander Fleming, Vari, Greece
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Erwei Song
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Justin Stebbing
- Division of Cancer, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, United Kingdom
| | - Georgios Giamas
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Falmer, Brighton, United Kingdom
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Mataragka A, Leousi E, Liandris E, Ntafis V, Leontides L, Aggelidou E, Bossis I, Triantaphyllopoulos KA, Theodoropoulou I, Ikonomopoulos J. Faecal shedding of Mycobacterium avium subspecies paratuberculosis reduces before parturition in sheep? Small Rumin Res 2017. [DOI: 10.1016/j.smallrumres.2016.11.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Ntafis V, Mari V, Decaro N, Papanastassopoulou M, Pardali D, Rallis TS, Kanellos T, Buonavoglia C, Xylouri E. Canine coronavirus, Greece. Molecular analysis and genetic diversity characterization. Infect Genet Evol 2013; 16:129-36. [PMID: 23410992 PMCID: PMC7106183 DOI: 10.1016/j.meegid.2013.01.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 01/17/2013] [Accepted: 01/27/2013] [Indexed: 11/05/2022]
Abstract
Canine coronavirus (CCoV) is an etiologic agent of diarrhea in dogs and is known to have spread worldwide. Mild disease or asymptomatic carriage are probably in many cases common outcomes of infection. To date, two different genotypes of CCoV are known, CCoV type I (CCoV-I) and CCoV type II (CCoV-II). CCoV type II is divided in two subtypes, CCoV-IIa (classical strains) and CCoV-IIb, with CCoV-IIb emerging as a result of a putative recombination between CCoV-IIa and transmissible gastroenteritis virus (TGEV). The aim of the present study was to investigate the presence of CCoV in Greece and to genetically analyze the circulating strains. Between December 2007 and December 2009, 206 fecal samples were collected from dogs with diarrhea from kennels, pet shops and veterinary clinics of different country regions. RT-PCR and real time RT-PCR assays were used for CCoV detection and characterization. CCoV was identified in 65.1% of the dogs presenting diarrhea, being more frequently detected in animals younger than 3 months old and in animals housed in groups. In 47% of the positive samples more than one CCoV genotype/subtype were detected, with triple CCoV-I/CCoV-IIa/CCoV-IIb infections being identified for the first time. Molecular and phylogenetic analysis revealed that CCoV-I Greek strains share low genetic relatedness to each other and to the prototype CCoV-I strains in the 5’ end of the S gene. Moreover, a divergent CCoV-IIa strain was identified. The circulation of highly variable CCoV-I and CCoV-IIb emerging strains, as well as the detection of the divergent strain, raise concerns on the importance of these new strains as primary pathogens of diarrhoeic syndromes diagnosed in dogs.
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Affiliation(s)
- Vasileios Ntafis
- Department of Anatomy and Physiology of Farm Animals, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Iera Odos 75, 118 55 Athens, Greece.
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11
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Ntafis V, Mari V, Decaro N, Papanastassopoulou M, Papaioannou N, Mpatziou R, Buonavoglia C, Xylouri E. Isolation, tissue distribution and molecular characterization of two recombinant canine coronavirus strains. Vet Microbiol 2011; 151:238-44. [PMID: 21481551 PMCID: PMC7117396 DOI: 10.1016/j.vetmic.2011.03.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 03/05/2011] [Accepted: 03/10/2011] [Indexed: 10/29/2022]
Abstract
Canine coronavirus (CCoV) is an enveloped RNA virus, responsible for gastrointestinal infection in dogs. To date, two different CCoV genotypes have been recognized, CCoV type I and CCoV type II. Recently, CCoV type II strains of potential recombinant origin with transmissible gastroenteritis virus (TGEV) were detected and characterized as a new subtype (CCoV-IIb) of canine coronavirus, in order to be differentiated from the "classical" CCoV type II strains (CCoV-IIa). In the present study, two CCoV-IIb strains were detected in the faeces and internal organs of two puppies, which died after presenting gastrointestinal symptoms. Mixed infection of both subtypes (CCoV-IIa/IIb) was detected in the faeces, while only CCoV-IIb was detected in the organs. Puppies were also infected by canine parvovirus type 2 (CPV-2). Both CCoV-IIb strains were isolated on cell cultures and subjected to sequence analysis and phylogeny. By means of RT-PCR and real time RT-PCR assays, tissue distribution and quantitation of viral loads took place. These cases represent the first description of tissue distribution and quantitation of CCoV-IIb strains, detected in the organs. The detection of CCoV-IIa strains, which is restricted to the faeces, suggests that CCoV-IIb strains may have an advantage in disseminating throughout a dog with CPV-2 coinfection, in contrast to common enteric CCoV-IIa strains.
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Affiliation(s)
- V Ntafis
- Department of Anatomy and Physiology of Farm Animals, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Iera Odos 75, 118 55 Athens, Greece.
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Ntafis V, Xylouri E, Kalli I, Desario C, Mari V, Decaro N, Buonavoglia C. Characterization of Canine parvovirus 2 variants circulating in Greece. J Vet Diagn Invest 2010; 22:737-40. [PMID: 20807931 DOI: 10.1177/104063871002200512] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The aim of the present study was to characterize Canine parvovirus 2 (CPV-2) variants currently circulating in Greece. Between March 2008 and March 2009, 167 fecal samples were collected from diarrheic dogs from different regions of Greece. Canine parvovirus 2 was detected by standard polymerase chain reaction, whereas minor groove binder probe assays were used to distinguish genetic variants and discriminate between vaccine and field strains. Of 84 CPV-2-positive samples, 81 CPV-2a, 1 CPV-2b, and 2 CPV-2c were detected. Vaccine strains were not detected in any sample. Sequence analysis of the VP2 gene of the 2 CPV-2c viruses revealed up to 100% amino acid identity with the CPV-2c strains previously detected in Europe. The results indicated that, unlike other European countries, CPV-2a remains the most common variant in Greece, and that the CPV-2c variant found in Europe is also present in Greece.
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Affiliation(s)
- Vasileios Ntafis
- Agricultural University of Athens, Faculty of Animal Science and Aquaculture, Athens, Greece
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Ntafis V, Fragkiadaki E, Xylouri E, Omirou A, Lavazza A, Martella V. Rotavirus-associated diarrhoea in foals in Greece. Vet Microbiol 2010; 144:461-5. [DOI: 10.1016/j.vetmic.2010.01.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2009] [Revised: 01/15/2010] [Accepted: 01/25/2010] [Indexed: 11/25/2022]
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Abstract
Canine coronavirus (CCoV) is usually the cause of mild gastroenteritis in dogs and is known to have spread worldwide. However, to date, no CCoV cases have been confirmed in Greece. In the present work, the authors investigated an outbreak of enteritis in puppies from a Greek kennel for the presence of CCoV. Dogs were presented with clinical signs of diarrhea, anorexia, weakness, depression, dehydration, and 1 death. Canine coronavirus type II was detected by reverse transcription nested polymerase chain reaction in all 11 puppies, whereas 1 puppy presented dual infection with CCoV type II and canine parvovirus 2. Surprisingly, sequence analysis of the samples revealed higher similarity to the pantropic CCoV II strain CB/05 than to other reference strains, in the most variable region of the S gene.
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Affiliation(s)
- Vasileios Ntafis
- Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece.
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