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Farmand S, Kremer B, Häffner M, Pütsep K, Bergman P, Sundin M, Ritterbusch H, Seidl M, Follo M, Henneke P, Henriques-Normark B. Eosinophilia and reduced STAT3 signaling affect neutrophil cell death in autosomal-dominant Hyper-IgE syndrome. Eur J Immunol 2018; 48:1975-1988. [PMID: 30315710 PMCID: PMC6587726 DOI: 10.1002/eji.201847650] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 08/29/2018] [Accepted: 10/10/2018] [Indexed: 01/15/2023]
Abstract
The autosomal‐dominant hyper‐IgE syndrome (HIES), caused by mutations in STAT3, is a rare primary immunodeficiency that predisposes to mucocutaneous candidiasis and staphylococcal skin and lung infections. This infection phenotype is suggestive of defects in neutrophils, but data on neutrophil functions in HIES are inconsistent. This study was undertaken to functionally characterize neutrophils in STAT3‐deficient HIES patients and to analyze whether the patients` eosinophilia affects the neutrophil phenotype in S. aureus infection. Neutrophil functions and cell death kinetics were studied in eight STAT3‐deficient patients. Moreover, the response of STAT3‐deficient neutrophils to S. aureus and the impact of autologous eosinophils on pathogen‐induced cell death were analyzed. No specific aberrations in neutrophil functions were detected within this cohort. However, the half‐life of STAT3‐deficient neutrophils ex vivo was reduced, which was partially attributable to the presence of eosinophils. Increased S. aureus‐induced cell lysis, dependent on the staphylococcal virulence controlling accessory gene regulator (agr)‐locus, was observed in STAT3‐deficient neutrophils and upon addition of eosinophils. Accelerated neutrophil cell death kinetics may underlie the reported variability in neutrophil function testing in HIES. Increased S. aureus‐induced lysis of STAT3‐deficient neutrophils might affect pathogen control and contribute to tissue destruction during staphylococcal infections in HIES.
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Affiliation(s)
- Susan Farmand
- Department of Clinical Microbiology, Karolinska University Hospital, Solna, Sweden.,Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.,Section of Hematology, Immunology and HSCT, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Bernhard Kremer
- Center for Chronic Immunodeficiency (CCI), Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Monika Häffner
- Center for Chronic Immunodeficiency (CCI), Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Katrin Pütsep
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Peter Bergman
- Department of Clinical Microbiology, Karolinska University Hospital, Solna, Sweden.,Department of Laboratory Medicine, Clinical Microbiology, Karolinska Institutet, Stockholm, Sweden.,Immunodeficiency Unit, Infectious Disease Clinic, Karolinska University Hospital, Huddinge, Sweden
| | - Mikael Sundin
- Section of Hematology, Immunology and HSCT, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.,Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Henrike Ritterbusch
- Center for Chronic Immunodeficiency (CCI), Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Center for Pediatrics and Adolescent Medicine, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Maximilian Seidl
- Center for Chronic Immunodeficiency (CCI), Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Institute of Pathology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Marie Follo
- Lighthouse Core Facility, Department of Medicine I, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Philipp Henneke
- Center for Chronic Immunodeficiency (CCI), Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Center for Pediatrics and Adolescent Medicine, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Birgitta Henriques-Normark
- Department of Clinical Microbiology, Karolinska University Hospital, Solna, Sweden.,Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
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Elling R, Keller B, Weidinger C, Häffner M, Deshmukh SD, Zee I, Speckmann C, Ehl S, Schwarz K, Feske S, Henneke P. Preserved effector functions of human ORAI1- and STIM1-deficient neutrophils. J Allergy Clin Immunol 2015; 137:1587-1591.e7. [PMID: 26670474 DOI: 10.1016/j.jaci.2015.09.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/17/2015] [Accepted: 09/22/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Roland Elling
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany; Division of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, Mass.
| | - Baerbel Keller
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Carl Weidinger
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Monika Häffner
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Sachin D Deshmukh
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Isabelle Zee
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Carsten Speckmann
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Stephan Ehl
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Klaus Schwarz
- Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine University Ulm, Ulm, Germany
| | - Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Philipp Henneke
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany; Center for Pediatrics and Adolescent Medicine, University Medical Center Freiburg, Freiburg, Germany.
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Gierling M, Schneeweiss P, Visanescu G, Federsel P, Häffner M, Kern DP, Judd TE, Günther A, Fortágh J. Cold-atom scanning probe microscopy. Nat Nanotechnol 2011; 6:446-451. [PMID: 21623359 DOI: 10.1038/nnano.2011.80] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Accepted: 04/21/2011] [Indexed: 05/30/2023]
Abstract
Scanning probe microscopes are widely used to study surfaces with atomic resolution in many areas of nanoscience. Ultracold atomic gases trapped in electromagnetic potentials can be used to study electromagnetic interactions between the atoms and nearby surfaces in chip-based systems. Here we demonstrate a new type of scanning probe microscope that combines these two areas of research by using an ultracold gas as the tip in a scanning probe microscope. This cold-atom scanning probe microscope offers a large scanning volume, an ultrasoft tip of well-defined shape and high purity, and sensitivity to electromagnetic forces (including dispersion forces near nanostructured surfaces). We use the cold-atom scanning probe microscope to non-destructively measure the position and height of carbon nanotube structures and individual free-standing nanotubes. Cooling the atoms in the gas to form a Bose-Einstein condensate increases the resolution of the device.
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Affiliation(s)
- M Gierling
- CQ Center for Collective Quantum Phenomena and their Applications, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, D-72076 Tübingen, Germany
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Fleischer M, Zhang D, Braun K, Jäger S, Ehlich R, Häffner M, Stanciu C, Hörber JKH, Meixner AJ, Kern DP. Tailoring gold nanostructures for near-field optical applications. Nanotechnology 2010; 21:065301. [PMID: 20057031 DOI: 10.1088/0957-4484/21/6/065301] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A method of combined thin-film deposition, electron beam lithography, and ion milling is presented for the fabrication of gold and silver nanostructures. The flexibility of lithographical processes for the variation of geometric parameters is combined with three-dimensional control over the surface evolution. Depending on the etching angle, different shapes ranging from cones over rods to cups can be achieved. These size- and shape-tunable structures present a toolbox for nano-optical investigations. As an example, optical properties of systematically varying structures are examined in a parabolic mirror confocal microscope.
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Affiliation(s)
- M Fleischer
- Institute of Applied Physics, Eberhard Karls Universität Tübingen, Tübingen, Germany.
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Gumbinger C, Rohsbach CB, Schulze-Bonhage A, Korinthenberg R, Zentner J, Häffner M, Fauser S. Focal cortical dysplasia: a genotype-phenotype analysis of polymorphisms and mutations in the TSC genes. Epilepsia 2009; 50:1396-408. [PMID: 19175396 DOI: 10.1111/j.1528-1167.2008.01979.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE Focal cortical dysplasia (FCD) is a common cause of pharmacoresistant human epilepsy. FCD has frequently been discussed as a "forme fruste" of tuberous sclerosis complex (TSC) because of the radiologic and histologic resemblance of dysplastic areas to tubers in TSC. Mutations or a germ-line predisposition in terms of increased polymorphisms in the TSC genes have been presumed to influence the pathogenesis of FCD. A detailed genotype-phenotype analysis of these patients has not been performed so far. METHODS In this study, 33 patients with FCD (among them 23 with FCD type 2 and 4 patients with multifocal FCD) were investigated (1) clinically as to dermatologic manifestations, retinal hamartoma, cardial rhabdomyoma, and renal angiomyolipoma, and (2) genetically by considering lesional brain tissue and blood using single strand conformation polymorphism (SSCP) electrophoresis and sequencing of the TSC1 and TSC2 genes. RESULTS In the clinical examinations, no subtle features of TSC could be detected in this large group of patients with FCD, pointing to the fact that this is a different patient group without clinical overlap. Several sequence alterations were found in the TSC1 and TSC2 genes in both lesional brain tissue and blood of FCD patients, however, in similar frequencies to that of the normal population. Moreover, most of these sequence alterations were silent. DISCUSSION This study shows that FCD-even multifocal FCD-is not caused by mutations in the TSC genes and seems not to be promoted by polymorphisms in the TSC genes. Therefore, FCD cannot be regarded as a "forme fruste" of TSC.
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