0000000000380357

AUTHOR

Birgit Sawitzki

0000-0001-8166-8579

showing 5 related works from this author

Guidelines for the use of flow cytometry and cell sorting in immunological studies (second edition)

2019

All authors: Andrea Cossarizza Hyun‐Dong Chang Andreas Radbruch Andreas Acs Dieter Adam Sabine Adam‐Klages William W. Agace Nima Aghaeepour Mübeccel Akdis Matthieu Allez Larissa Nogueira Almeida Giorgia Alvisi Graham Anderson Immanuel Andrä Francesco Annunziato Achille Anselmo Petra Bacher Cosima T. Baldari Sudipto Bari Vincenzo Barnaba Joana Barros‐Martins Luca Battistini Wolfgang Bauer Sabine Baumgart Nicole Baumgarth Dirk Baumjohann Bianka Baying Mary Bebawy Burkhard Becher Wolfgang Beisker Vladimir Benes Rudi Beyaert Alfonso Blanco Dominic A. Boardman Christian Bogdan Jessica G. Borger Giovanna Borsellino Philip E. Boulais Jolene A. Bradford Dirk Brenner Ryan R. Brinkman Anna E. S. Broo…

0301 basic medicineConsensusImmunologyConsensuCell SeparationBiologyArticleFlow cytometry03 medical and health sciences0302 clinical medicineGuidelines ; Immunology ; Flow cytometryAllergy and ImmunologymedicineCell separationImmunology and AllergyHumansguidelines; flow cytometry; immunologymedicine.diagnostic_testBIOMEDICINE AND HEALTHCARE. Basic Medical Sciences.Cell sortingFlow CytometryCell selectionData science3. Good health030104 developmental biologyPhenotypeAllergy and Immunology; Cell Separation; Consensus; Flow Cytometry; Humans; Phenotype[SDV.IMM]Life Sciences [q-bio]/ImmunologyBIOMEDICINA I ZDRAVSTVO. Temeljne medicinske znanosti.030215 immunologyHumanEuropean journal of immunology
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Dependence on nuclear factor of activated T-cells (NFAT) levels discriminates conventional T cells from Foxp3 + regulatory T cells

2012

Several lines of evidence suggest nuclear factor of activated T-cells (NFAT) to control regulatory T cells: thymus-derived naturally occurring regulatory T cells (nTreg) depend on calcium signals, the Foxp3 gene harbors several NFAT binding sites, and the Foxp3 (Fork head box P3) protein interacts with NFAT. Therefore, we investigated the impact of NFAT on Foxp3 expression. Indeed, the generation of peripherally induced Treg (iTreg) by TGF-β was highly dependent on NFAT expression because the ability of CD4 + T cells to differentiate into iTreg diminished markedly with the number of NFAT family members missing. It can be concluded that the expression of Foxp3 in TGF-β–induced iTreg depends…

Chromatin ImmunoprecipitationAdoptive cell transferT-LymphocytesImmunoblottingFluorescent Antibody TechniqueLymphocyte ActivationT-Lymphocytes RegulatoryAutoimmune DiseasesProinflammatory cytokineMiceTransforming Growth Factor betaAnimalsHumansHomeodomain ProteinsMultidisciplinaryNFATC Transcription FactorsbiologyFOXP3Forkhead Transcription FactorsNFATTransforming growth factor betaBiological SciencesColitisFlow CytometryNFATC Transcription FactorsAdoptive TransferMolecular biologyCell biologyTransplantationCyclosporinebiology.proteinChromatin immunoprecipitationProceedings of the National Academy of Sciences
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Microglial activation milieu controls regulatory T cell responses.

2013

Abstract Although mechanisms leading to brain-specific inflammation and T cell activation have been widely investigated, regulatory mechanisms of local innate immune cells in the brain are only poorly understood. In this study, to our knowledge we show for the first time that MHC class II+CD40dimCD86dimIL-10+ microglia are potent inducers of Ag-specific CD4+Foxp3+ regulatory T cells (Tregs) in vitro. Microglia differentially regulated MHC class II expression, costimulatory molecules, and IL-10 depending on the amount of IFN-γ challenge and Ag dose, promoting either effector T cell or Treg induction. Microglia-induced Tregs were functionally active in vitro by inhibiting Ag-specific prolifer…

Encephalomyelitis Autoimmune ExperimentalRegulatory T cellT cellImmunologychemical and pharmacologic phenomenaMice TransgenicLymphocyte ActivationT-Lymphocytes RegulatoryImmune toleranceInterferon-gammaMiceImmune systemT-Lymphocyte SubsetsmedicineImmune ToleranceImmunology and AllergyAnimalsCells CulturedCD86MHC class IIbiologyMicrogliaHistocompatibility Antigens Class IIFOXP3Brainhemic and immune systemsForkhead Transcription FactorsCoculture TechniquesCell biologyInterleukin-10Mice Inbred C57BLmedicine.anatomical_structureCellular Microenvironmentbiology.proteinMicrogliaJournal of immunology (Baltimore, Md. : 1950)
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The mitochondrial protein TCAIM regulates activation of T cells and thereby promotes tolerance induction of allogeneic transplants.

2013

Primary T cell activation and effector cell differentiation is required for rejection of allogeneic grafts in naive recipients. It has become evident, that mitochondria play an important role for T cell activation. Expression of several mitochondrial proteins such as TCAIM (T cell activation inhibitor, mitochondrial) is down-regulated upon T cell receptor triggering. Here we report that TCAIM inhibited spontaneous development of memory and effector T cells. CD4(+) T cells from Tcaim knock-in (KI) mice showed reduced activation, cytokine secretion and proliferation in vitro. Tcaim KI T cells tolerated allogeneic skin grafts upon transfer into Rag-1 KO mice. CD4(+) and CD8(+) T cells from the…

T cellT-LymphocytesBiologyLymphocyte ActivationT-Lymphocytes RegulatoryMitochondrial ProteinsInterleukin 21MicemedicineImmunology and AllergyCytotoxic T cellAnimalsTransplantation HomologousPharmacology (medical)IL-2 receptorAntigen-presenting cellCells CulturedHomeodomain ProteinsMice KnockoutTransplantationMice Inbred BALB CZAP70CD28Cell DifferentiationSkin TransplantationFlow CytometryCell biologyMitochondriaMice Inbred C57BLmedicine.anatomical_structureCytokinesTransplantation ToleranceReactive Oxygen SpeciesImmunologic MemoryCD8American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons
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Guidelines for the use of flow cytometry and cell sorting in immunological studies

2017

The marriage between immunology and cytometry is one of the most stable and productive in the recent history of science. A rapid search in PubMed shows that, as of July 2017, using “flow cytometry immunology” as a search term yields more than 68 000 articles, the first of which, interestingly, is not about lymphocytes. It might be stated that, after a short engagement, the exchange of the wedding rings between immunology and cytometry officially occurred when the idea to link fluorochromes to monoclonal antibodies came about. After this, recognizing different types of cells became relatively easy and feasible not only by using a simple fluorescence microscope, but also by a complex and some…

0301 basic medicineT-LymphocytesCell SeparationT cell precursors0302 clinical medicineImmunophenotypingHuman lymphopoiesis[ SDV.IMM ] Life Sciences [q-bio]/ImmunologyImmunology and AllergyNon-U.S. Gov'tImmunologic Techniquemedicine.diagnostic_testResearch Support Non-U.S. Gov'tvirus diseaseshemic and immune systemsFalse Positive ReactionCell sortingFlow Cytometrynatural killer and innate lymphoid cells differentiation3. Good healthResearch Design[SDV.IMM]Life Sciences [q-bio]/ImmunologyHumanQuality Controlmedicine.drug_classImmunologyAnimals; Cell Proliferation; Cell Separation; DNA; False Positive Reactions; Flow Cytometry; Humans; Immunophenotyping; Quality Control; RNA; Research Design; Software; T-Lymphocytes; Guidelines as Topic; Immunologic Techniques; Immunology and Allergy; Immunologychemical and pharmacologic phenomenaGuidelines as TopicComputational biologyBiologyMonoclonal antibodyResearch SupportArticleFlow cytometryImmunophenotypingN.I.H.03 medical and health sciencesImmune systemImmunologic TechniqueResearch Support N.I.H. Extramuralmedicineearly lymphoid progenitorsJournal ArticleAnimalsHumansMass cytometryFalse Positive ReactionsImmunology and Allergy; Immunology; Flow cytometryIMUNOLOGIACell ProliferationAnimalExtramuralB cell ontogenyDNA030104 developmental biologyT-LymphocyteImmunologic TechniquesRNACytometrySoftware030215 immunologyEuropean Journal of Immunology
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