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Venegas-Solis F, Staliunaite L, Rudolph E, Münch CCS, Yu P, Freibert SA, Maeda T, Zimmer CL, Möbs C, Keller C, Kaufmann A, Bauer S. A type I interferon regulatory network for human plasmacytoid dendritic cells based on heparin, membrane-bound and soluble BDCA-2. Proc Natl Acad Sci U S A 2024; 121:e2312404121. [PMID: 38478694 PMCID: PMC10963015 DOI: 10.1073/pnas.2312404121] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 01/10/2024] [Indexed: 03/27/2024] Open
Abstract
Plasmacytoid dendritic cells (pDCs) produce type I interferons (IFNs) after sensing viral/bacterial RNA or DNA by toll-like receptor (TLR) 7 or TLR9, respectively. However, aberrant pDCs activation can cause adverse effects on the host and contributes to the pathogenesis of type I IFN-related autoimmune diseases. Here, we show that heparin interacts with the human pDCs-specific blood dendritic cell antigen 2 (BDCA-2) but not with related lectins such as DCIR or dectin-2. Importantly, BDCA-2-heparin interaction depends on heparin sulfation and receptor glycosylation and results in inhibition of TLR9-driven type I IFN production in primary human pDCs and the pDC-like cell line CAL-1. This inhibition is mediated by unfractionated and low-molecular-weight heparin, as well as endogenous heparin from plasma, suggesting that the local blood environment controls the production of IFN-α in pDCs. Additionally, we identified an activation-dependent soluble form of BDCA-2 (solBDCA-2) in human plasma that functions as heparin antagonist and thereby increases TLR9-driven IFN-α production in pDCs. Of importance, solBDCA-2 levels in the serum were increased in patients with scrub typhus (an acute infectious disease caused by Orientia tsutsugamushi) compared to healthy control subjects and correlated with anti-dsDNA antibodies titers. In contrast, solBDCA-2 levels in plasma from patients with bullous pemphigoid or psoriasis were reduced. In summary, this work identifies a regulatory network consisting of heparin, membrane-bound and solBDCA-2 modulating TLR9-driven IFN-α production in pDCs. This insight into pDCs function and regulation may have implications for the treatment of pDCs-related autoimmune diseases.
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Affiliation(s)
- Francisco Venegas-Solis
- Institute for Immunology, Philipps-Universität Marburg, Biomedizinisches Forschungszentrum Marburg, Marburg35043, Germany
| | - Laura Staliunaite
- Institute for Immunology, Philipps-Universität Marburg, Biomedizinisches Forschungszentrum Marburg, Marburg35043, Germany
| | - Elisa Rudolph
- Institute for Immunology, Philipps-Universität Marburg, Biomedizinisches Forschungszentrum Marburg, Marburg35043, Germany
| | - Carina Chan-Song Münch
- Institute of Virology, Philipps-Universität Marburg, Biomedizinisches Forschungszemtrum Marburg, Marburg35043, Germany
| | - Philipp Yu
- Institute for Immunology, Philipps-Universität Marburg, Biomedizinisches Forschungszentrum Marburg, Marburg35043, Germany
| | - Sven-A. Freibert
- Institute for Cytobiology, Center for Synthetic Microbiology, Philipps-Universität Marburg, Marburg35032, Germany
- Core Facility “Protein Biochemistry and Spectroscopy”, Philipps-Universität Marburg, Marburg35032, Germany
| | - Takahiro Maeda
- Department of Island and Community Medicine, Island Medical Research Institute, Nagasaki University Graduate School of Biomedical Science, Nagasaki852-8523, Japan
| | - Christine L. Zimmer
- Department of Dermatology and Allergology, Philipps-Universität Marburg, Marburg35043, Germany
| | - Christian Möbs
- Department of Dermatology and Allergology, Philipps-Universität Marburg, Marburg35043, Germany
| | - Christian Keller
- Institute of Virology, Philipps-Universität Marburg, Biomedizinisches Forschungszemtrum Marburg, Marburg35043, Germany
| | - Andreas Kaufmann
- Institute for Immunology, Philipps-Universität Marburg, Biomedizinisches Forschungszentrum Marburg, Marburg35043, Germany
| | - Stefan Bauer
- Institute for Immunology, Philipps-Universität Marburg, Biomedizinisches Forschungszentrum Marburg, Marburg35043, Germany
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M, Kaempf R. Improved method robustness and ruggedness in liquid chromatography-mass spectrometry by increasing the acid content of the mobile phase. J Chromatogr A 2024; 1717:464694. [PMID: 38306921 DOI: 10.1016/j.chroma.2024.464694] [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: 12/12/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/04/2024]
Abstract
A routine multiresidue method developed for the detection and quantification of veterinary drug residues in animal-based food was used to analyze sheep (ovine) liver. Unlike when working with previously validated matrices (e.g., bovine liver), some of the analytes of interest chromatographed in the form of split- or even fully baseline separated peaks. In other cases a significantly longer retention times (tR) was observed. A detailed investigation led to the elucidation of taurocholic acid as the causative agent. This compound is present in sheep liver at significantly higher concentrations than in most other animal tissues. Taurocholic acid is a zwitterionic compound and likely acts as an ion pairing agent, which modifies the selectivity of the stationary phase in a highly spatial and dynamic way. Injecting smaller volumes of matrix extract or the use of a significantly higher formic acid concentration in the mobile phase reduced or even completely eliminated the peak splitting. A more detailed examination led to the observation that the problem is not restricted to this particular matrix and extraction procedure or the used stationary phase. In fact, a higher formic acid concentration (e.g., 1.0 % versus 0.1 %) significantly improves the peak shape of many analytes present in fortified matrix samples as well as in pure standard solutions. In addition, analytical column aging was observed as being slower with a higher formic acid concentration. Finally the peak shape of analytes interacting with the metallic parts along the flow path of the liquid chromatograph was also significantly improved. Use of 0.1 % acid in mobile phases is often taken for granted in LC-MS. Regardless of the stationary phase, a higher ionic strength better stabilizes the pH and reduces unwanted interactions, which ultimately improves the method robustness. Flow injection experiments often show that 0.1 % acid concentrations produce the highest analyte signals. Yet, the use of 1 % acid in the mobile phase often leads to narrower and therefore taller chromatographic peaks, which may lead to lower detection limits for many analytes and to an improved separation efficiency.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland.
| | - P Butcher
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - K Maden
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - S Walker
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - M Widmer
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - R Kaempf
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
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3
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Rauch E, Amendt T, Lopez Krol A, Lang FB, Linse V, Hohmann M, Keim AC, Kreutzer S, Kawengian K, Buchholz M, Duschner P, Grauer S, Schnierle B, Ruhl A, Burtscher I, Dehnert S, Kuria C, Kupke A, Paul S, Liehr T, Lechner M, Schnare M, Kaufmann A, Huber M, Winkler TH, Bauer S, Yu P. T-bet + B cells are activated by and control endogenous retroviruses through TLR-dependent mechanisms. Nat Commun 2024; 15:1229. [PMID: 38336876 PMCID: PMC10858178 DOI: 10.1038/s41467-024-45201-6] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 01/17/2024] [Indexed: 02/12/2024] Open
Abstract
Endogenous retroviruses (ERVs) are an integral part of the mammalian genome. The role of immune control of ERVs in general is poorly defined as is their function as anti-cancer immune targets or drivers of autoimmune disease. Here, we generate mouse-strains where Moloney-Murine Leukemia Virus tagged with GFP (ERV-GFP) infected the mouse germline. This enables us to analyze the role of genetic, epigenetic and cell intrinsic restriction factors in ERV activation and control. We identify an autoreactive B cell response against the neo-self/ERV antigen GFP as a key mechanism of ERV control. Hallmarks of this response are spontaneous ERV-GFP+ germinal center formation, elevated serum IFN-γ levels and a dependency on Age-associated B cells (ABCs) a subclass of T-bet+ memory B cells. Impairment of IgM B cell receptor-signal in nucleic-acid sensing TLR-deficient mice contributes to defective ERV control. Although ERVs are a part of the genome they break immune tolerance, induce immune surveillance against ERV-derived self-antigens and shape the host immune response.
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Affiliation(s)
- Eileen Rauch
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
- CSL Behring Innovation GmbH, Emil-von-Behring-Str. 76, 35041, Marburg, Germany
| | - Timm Amendt
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
- The Francis Crick Institute, NW1 1AT, London, UK
| | | | - Fabian B Lang
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Vincent Linse
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Michelle Hohmann
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
- Apollo Ventures Holding GmbH, 20457, Hamburg, Germany
| | - Ann-Christin Keim
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Susanne Kreutzer
- Max-Planck-Institute for Heart and Lung Research, 61231, Bad Nauheim, Germany
| | - Kevin Kawengian
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Malte Buchholz
- Department of Gastroenterology, Endocrinology and Metabolism, and Core Facility Small Animal Multispectral and Ultrasound Imaging, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Philipp Duschner
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Saskia Grauer
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Barbara Schnierle
- Department of Virology, Paul-Ehrlich-Institut, 63225, Langen, Germany
| | - Andreas Ruhl
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
- Department of Infection Biology, University Hospital Erlangen, 91054, Erlangen, Germany
| | - Ingo Burtscher
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Sonja Dehnert
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Chege Kuria
- Nikolaus-Fiebiger Center for Molecular Medicine, Friedrich-Alexander Universität Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - Alexandra Kupke
- Institute of Virology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Stephanie Paul
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Thomas Liehr
- Jena University Hospital, Friedrich Schiller University, Institute of Human Genetics, 07747, Jena, Germany
| | - Marcus Lechner
- Center for Synthetic Microbiology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Markus Schnare
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Andreas Kaufmann
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Magdalena Huber
- Institute of Sytems Immunology, Center for Tumor and Immunobiology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Thomas H Winkler
- Nikolaus-Fiebiger Center for Molecular Medicine, Friedrich-Alexander Universität Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - Stefan Bauer
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Philipp Yu
- Institute of Immunology, Philipps-Universität Marburg, 35043, Marburg, Germany.
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4
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Welponer T, Weber DD, Trattner L, Tockner B, Aminzadeh-Gohari S, Leb-Reichl V, Kaufmann A, Zauner R, Wimmer M, Wally V, Felder TK, Strunk D, Koller U, Bauer JW, Kofler B, Guttmann-Gruber C, Piñon Hofbauer J. Metformin shows anti-neoplastic properties by inhibition of oxidative phosphorylation and glycolysis in epidermolysis bullosa-associated aggressive cutaneous squamous cell carcinoma. J Eur Acad Dermatol Venereol 2024; 38:112-123. [PMID: 37669776 DOI: 10.1111/jdv.19488] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/18/2023] [Indexed: 09/07/2023]
Abstract
BACKGROUND While most cutaneous squamous cell carcinomas (cSCCs) are treatable, certain high-risk cSCCs, such as those in recessive dystrophic epidermolysis bullosa (RDEB) patients, are particularly aggressive. Owing to repeated wounding, inflammation and unproductive healing, RDEB patients have a 68% cumulative risk of developing life-threatening cSCCs by the age of 35, and a 70% risk of death by the age of 45. Despite aggressive treatment, cSCC represents the leading cause of premature mortality in these patients, highlighting an unmet clinical need. Increasing evidence points to a role of altered metabolism in the initiation and maintenance of cSCC, making metabolism a potential therapeutic target. OBJECTIVES We sought to determine the feasibility of targeting tumour cell energetics as a strategy to selectively hinder the growth advantage of aggressive cSCC. METHODS We evaluated the cell energetics profiles of RDEB-SCC cells by analysing available gene expression data against multiple gene signatures and single-gene targets linked to metabolic reprogramming. Additionally, we employed real-time metabolic profiling to measure glycolysis and respiration in these cells. Furthermore, we investigated the anti-neoplastic properties of the metformin against human and murine high-risk cSCCs in vitro and in vivo. RESULTS Gene expression analyses highlighted a divergence in cell energetics profiles between RDEB-SCC and non-malignant RDEB keratinocytes, with tumour cells demonstrating enhanced respiration and glycolysis scores. Real-time metabolic profiling supported these data and additionally highlighted a metabolic plasticity of RDEB-SCC cells. Against this background, metformin exerted an anti-neoplastic potential by hampering both respiration and glycolysis, and by inhibiting proliferation in vitro. Metformin treatment in an analogous model of fast-growing murine cSCC resulted in delayed tumour onset and slower tumour growth, translating to a 29% increase in median overall survival. CONCLUSIONS Our data indicate that metformin exerts anti-neoplastic properties in aggressive cSCCs that exhibit high-risk features by interfering with respiration and glycolytic processes.
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Affiliation(s)
- T Welponer
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - D D Weber
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - L Trattner
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - B Tockner
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - S Aminzadeh-Gohari
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - V Leb-Reichl
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - A Kaufmann
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - R Zauner
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - M Wimmer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - V Wally
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - T K Felder
- Department of Laboratory Medicine, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - D Strunk
- Cell Therapy Institute, Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria
| | - U Koller
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - J W Bauer
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - B Kofler
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - C Guttmann-Gruber
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - J Piñon Hofbauer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
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Schwerdtner M, Skalik A, Limburg H, Bierwagen J, Jung AL, Dorna J, Kaufmann A, Bauer S, Schmeck B, Böttcher-Friebertshäuser E. Expression of TMPRSS2 is up-regulated by bacterial flagellin, LPS, and Pam3Cys in human airway cells. Life Sci Alliance 2023; 6:e202201813. [PMID: 37208193 PMCID: PMC10200810 DOI: 10.26508/lsa.202201813] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/21/2023] Open
Abstract
Many viruses require proteolytic activation of their envelope proteins for infectivity, and relevant host proteases provide promising drug targets. The transmembrane serine protease 2 (TMPRSS2) has been identified as a major activating protease of influenza A virus (IAV) and various coronaviruses (CoV). Increased TMPRSS2 expression has been associated with a higher risk of severe influenza infection and enhanced susceptibility to SARS-CoV-2. Here, we found that Legionella pneumophila stimulates the increased expression of TMPRSS2-mRNA in Calu-3 human airway cells. We identified flagellin as the dominant structural component inducing TMPRSS2 expression. The flagellin-induced increase was not observed at this magnitude for other virus-activating host proteases. TMPRSS2-mRNA expression was also significantly increased by LPS, Pam3Cys, and Streptococcus pneumoniae, although less pronounced. Multicycle replication of H1N1pdm and H3N2 IAV but not SARS-CoV-2 and SARS-CoV was enhanced by flagellin treatment. Our data suggest that bacteria, particularly flagellated bacteria, up-regulate the expression of TMPRSS2 in human airway cells and, thereby, may support enhanced activation and replication of IAV upon co-infections. In addition, our data indicate a physiological role of TMPRSS2 in antimicrobial host response.
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Affiliation(s)
- Marie Schwerdtner
- Institute of Virology, Philipps-University Marburg, Marburg, Germany
| | - Annika Skalik
- Institute of Virology, Philipps-University Marburg, Marburg, Germany
| | - Hannah Limburg
- Institute of Virology, Philipps-University Marburg, Marburg, Germany
| | - Jeff Bierwagen
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Anna Lena Jung
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Jens Dorna
- Institute of Immunology, Philipps-University Marburg, Marburg, Germany
| | - Andreas Kaufmann
- Institute of Immunology, Philipps-University Marburg, Marburg, Germany
| | - Stefan Bauer
- Institute of Immunology, Philipps-University Marburg, Marburg, Germany
| | - Bernd Schmeck
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
- Department of Pulmonary and Critical Care Medicine, Philipps-University Marburg, Marburg, Germany, Member of the German Center for Infectious Disease Research (DZIF), Marburg, Germany
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6
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Alhamwe BA, Gao Z, Alhamdan F, Harb H, Pichene M, Garnier A, Andari JE, Kaufmann A, Graumann PL, Kesper D, Daviaud C, Garn H, Tost J, Potaczek DP, Blaser MJ, Renz H. Intranasal administration of Acinetobacter lwoffii in a murine model of asthma induces IL-6-mediated protection associated with cecal microbiota changes. Allergy 2023; 78:1245-1257. [PMID: 36458896 PMCID: PMC10160012 DOI: 10.1111/all.15606] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 02/24/2022] [Revised: 09/30/2022] [Accepted: 10/13/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND Early-life exposure to certain environmental bacteria including Acinetobacter lwoffii (AL) has been implicated in protection from chronic inflammatory diseases including asthma later in life. However, the underlying mechanisms at the immune-microbe interface remain largely unknown. METHODS The effects of repeated intranasal AL exposure on local and systemic innate immune responses were investigated in wild-type and Il6-/- , Il10-/- , and Il17-/- mice exposed to ovalbumin-induced allergic airway inflammation. Those investigations were expanded by microbiome analyses. To assess for AL-associated changes in gene expression, the picture arising from animal data was supplemented by in vitro experiments of macrophage and T-cell responses, yielding expression and epigenetic data. RESULTS The asthma preventive effect of AL was confirmed in the lung. Repeated intranasal AL administration triggered a proinflammatory immune response particularly characterized by elevated levels of IL-6, and consequently, IL-6 induced IL-10 production in CD4+ T-cells. Both IL-6 and IL-10, but not IL-17, were required for asthma protection. AL had a profound impact on the gene regulatory landscape of CD4+ T-cells which could be largely recapitulated by recombinant IL-6. AL administration also induced marked changes in the gastrointestinal microbiome but not in the lung microbiome. By comparing the effects on the microbiota according to mouse genotype and AL-treatment status, we have identified microbial taxa that were associated with either disease protection or activity. CONCLUSION These experiments provide a novel mechanism of Acinetobacter lwoffii-induced asthma protection operating through IL-6-mediated epigenetic activation of IL-10 production and with associated effects on the intestinal microbiome.
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Affiliation(s)
- Bilal Alashkar Alhamwe
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps-University Marburg, Marburg, Germany
- Institute for Tumor Immunology, Clinic for Hematology, Oncology and Immunology, Center for Tumor Biology, and Immunology (ZTI), Philipps University Marburg, Marburg, Germany
- College of Pharmacy, International University for Science and Technology (IUST), Daraa 15, Syria
| | - Zhan Gao
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, NJ
| | - Fahd Alhamdan
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps-University Marburg, Marburg, Germany
- Department of Medicine, Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps-University Marburg, Marburg, Germany
| | - Hani Harb
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps-University Marburg, Marburg, Germany
- Institute for Medical Microbiology and Virology, Technical University Dresden, Dresden, Germany
- Psychoneuroimmunology Laboratory, Department of Psychosomatic Medicine and Psychotherapy, Justus-Liebig University Giessen, Giessen, Germany
| | - Matthieu Pichene
- The Laboratory for Epigenetics and Environment, Centre National de Recherche en Genomique Humaine, CEA–Institut de Biologie Francois Jacob, Université Paris-Saclay, Evry, France
| | - Abel Garnier
- The Laboratory for Epigenetics and Environment, Centre National de Recherche en Genomique Humaine, CEA–Institut de Biologie Francois Jacob, Université Paris-Saclay, Evry, France
| | - Jihad El Andari
- SYNMIKRO, LOEWE Center for Synthetic Microbiology and Department of Chemistry, Philipps-University Marburg, Marburg, Germany
| | - Andreas Kaufmann
- Institute for Immunology, Philipps-University Marburg, Marburg, Germany
| | - Peter L. Graumann
- SYNMIKRO, LOEWE Center for Synthetic Microbiology and Department of Chemistry, Philipps-University Marburg, Marburg, Germany
| | - Dörthe Kesper
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps-University Marburg, Marburg, Germany
| | - Christian Daviaud
- The Laboratory for Epigenetics and Environment, Centre National de Recherche en Genomique Humaine, CEA–Institut de Biologie Francois Jacob, Université Paris-Saclay, Evry, France
| | - Holger Garn
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps-University Marburg, Marburg, Germany
| | - Jörg Tost
- The Laboratory for Epigenetics and Environment, Centre National de Recherche en Genomique Humaine, CEA–Institut de Biologie Francois Jacob, Université Paris-Saclay, Evry, France
| | - Daniel P. Potaczek
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps-University Marburg, Marburg, Germany
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps-University Marburg, Marburg, Germany
- Bioscientia MVZ Labor Mittelhessen GmbH, Gießen, Germany
| | - Martin J. Blaser
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, NJ
| | - Harald Renz
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps-University Marburg, Marburg, Germany
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7
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Kaufmann A, Arrizabalaga-Larrañaga A, Blokland M, Sterk S. Potential and limitation of retrospective HRMS based data analysis: “Have meat-producing animals been exposed to illegal growth promotors such as SARMs?”. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109611] [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] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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8
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Stark M, Nicolai M, Tatura M, Keber CU, Kaufmann A, Chung HR, Slater EP, Heeschen C, Lawlor RT, Scarpa A, Bartsch DK, Gress TM, Bauer S, Buchholz M. Dissecting the role of toll-like receptor 7 in pancreatic cancer. Cancer Med 2023; 12:8542-8556. [PMID: 36602302 PMCID: PMC10134280 DOI: 10.1002/cam4.5606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 11/24/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Toll-like receptors (TLRs) are gaining attention for their potential to influence tumor biology both on the level of the tumor cells as well as on the level of the surrounding inflammatory stroma. Previous studies resulted in partly conflicting data on the expression of TLR7 in healthy and neoplastic pancreatic tissues as well as its role in pancreatic tumor biology. METHODS We used qRT-PCR and immunohistochemistry to asses TLR7 expression in primary patient material and cell lines. Cell viability was analyzed by MTT assay upon incubation with TLR7 agonist/antagonist. Mouse models were used to investigate the role of TLR7 in vivo. RESULTS TLR7 is overexpressed in more than 50% of primary human pancreatic ductal adenocarcinoma (PDAC). High TLR7 expression was associated with shorter patient survival, and TLR7 inhibition in cell lines reduced viability in a dose-dependent manner. In contrast, global TLR7 deficiency did not alter survival or overall histopathological tumor features in genetic mouse models of PDAC. CONCLUSIONS TLR7 may have opposing functions in tumor versus stroma cells. Further work is required to more precisely dissect the roles of TLR7 and its ligands in different populations of epithelial and stromal cells and to understand their relative contributions to tumor progression.
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Affiliation(s)
- Maren Stark
- Clinic for Gastroenterology, Endocrinology, Metabolism and Infectiology, Philipps-University Marburg, Marburg, Germany
| | - Marina Nicolai
- Institute for Immunology, Philipps-University Marburg, Marburg, Germany
| | - Marina Tatura
- Clinic for Gastroenterology, Endocrinology, Metabolism and Infectiology, Philipps-University Marburg, Marburg, Germany
| | - Corinna U Keber
- Institute of Pathology, Philipps-University Marburg, Marburg, Germany
| | - Andreas Kaufmann
- Institute for Immunology, Philipps-University Marburg, Marburg, Germany
| | - Ho-Ryun Chung
- Institute for Medical Bioinformatics and Biostatistics, Philipps-University Marburg, Marburg, Germany
| | - Emily P Slater
- Department of Visceral, Thoracic and Vascular Surgery, Philipps University Marburg, Marburg, Germany
| | - Christopher Heeschen
- Pancreatic Cancer Heterogeneity Group, Candiolo Cancer Institute, Candiolo (Torino), Italy
| | - Rita T Lawlor
- ARC-Net Cancer Research Centre, University of Verona, Verona, Italy
| | - Aldo Scarpa
- ARC-Net Cancer Research Centre, University of Verona, Verona, Italy
| | - Detlef K Bartsch
- Department of Visceral, Thoracic and Vascular Surgery, Philipps University Marburg, Marburg, Germany
| | - Thomas M Gress
- Clinic for Gastroenterology, Endocrinology, Metabolism and Infectiology, Philipps-University Marburg, Marburg, Germany
| | - Stefan Bauer
- Institute for Immunology, Philipps-University Marburg, Marburg, Germany
| | - Malte Buchholz
- Clinic for Gastroenterology, Endocrinology, Metabolism and Infectiology, Philipps-University Marburg, Marburg, Germany.,Core facility Small Animal Imaging of the Medical Faculty of the Philipps-University Marburg, Marburg, Germany
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9
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Schmiedeknecht K, Kaufmann A, Bauer S, Venegas Solis F. L-lactate as an indicator for cellular metabolic status: An easy and cost-effective colorimetric L-lactate assay. PLoS One 2022; 17:e0271818. [PMID: 35867690 PMCID: PMC9307176 DOI: 10.1371/journal.pone.0271818] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 07/07/2022] [Indexed: 11/18/2022] Open
Abstract
Background In recent times, the study of metabolic pathways has become inevitable and predominant for a variety of research fields as cancer biology and immunology. L-lactate as a product of anaerobic glycolysis has shown to be an important indicator of the cellular metabolic status and can be associated with diverse cellular effects. For this reason, L-lactate assay kits are of high demand when metabolic effects need to be considered. Nevertheless, commercially available kits are not affordable if multiple samples must be evaluated. Principal finding In this work, we develop an easy and cost-effective colorimetric assay for quantification of L-lactate suitable for cells with low or high L-lactate production based on LDH activity and suitable for 96 well-plate format. Using different metabolic regulators, we demonstrate the capacity of the assay to detect and quantify L-lactate from the supernatant of HeLa cancer cell line. Furthermore, we validate the assay against a commercially available kit by demonstrating no significant difference between both assays. Finally, we show that the assay is capable of quantifying L-lactate in primary cells such as hPBMCs that were stimulated with toll-like receptor ligands and treated with different metabolic regulators. Conclusion We herein present an easy custom assay that is suitable for cells with low and high L-lactate production at very low cost compared to commercially available kits. These advantages of the custom assay can simplify the research in the field of metabolism and related fields.
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Affiliation(s)
- Kira Schmiedeknecht
- Institute for Immunology, Philipps-University Marburg, BMFZ, Marburg, Germany
| | - Andreas Kaufmann
- Institute for Immunology, Philipps-University Marburg, BMFZ, Marburg, Germany
| | - Stefan Bauer
- Institute for Immunology, Philipps-University Marburg, BMFZ, Marburg, Germany
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10
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Köllisch G, Solis FV, Obermann HL, Eckert J, Müller T, Vierbuchen T, Rickmeyer T, Muche S, Przyborski JM, Heine H, Kaufmann A, Baumeister S, Lingelbach K, Bauer S. TLR8 is activated by 5'-methylthioinosine, a Plasmodium falciparum-derived intermediate of the purine salvage pathway. Cell Rep 2022; 39:110691. [PMID: 35417716 DOI: 10.1016/j.celrep.2022.110691] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 07/07/2020] [Revised: 02/02/2022] [Accepted: 03/25/2022] [Indexed: 12/31/2022] Open
Abstract
The innate immune recognition of the malaria-causing pathogen Plasmodium falciparum (P. falciparum) is not fully explored. Here, we identify the nucleoside 5'-methylthioinosine (MTI), a Plasmodium-specific intermediate of the purine salvage pathway, as a pathogen-derived Toll-like receptor 8 (TLR8) agonist. Co-incubation of MTI with the TLR8 enhancer poly(dT) as well as synthetic or P. falciparum-derived RNA strongly increase its stimulatory activity. Of note, MTI generated from methylthioadenosine (MTA) by P. falciparum lysates activates TLR8 when MTI metabolism is inhibited by immucillin targeting the purine nucleoside phosphorylase (PfPNP). Importantly, P. falciparum-infected red blood cells incubated with MTI or cultivated with MTA and immucillin lead to TLR8-dependent interleukin-6 (IL-6) production in human monocytes. Our data demonstrate that the nucleoside MTI is a natural human TLR8 ligand with possible in vivo relevance for innate sensing of P. falciparum.
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Affiliation(s)
- Gabriele Köllisch
- Department of Parasitology, Philipps University Marburg, 35043 Marburg, Germany
| | | | - Hannah-Lena Obermann
- Institute for Immunology, Philipps University Marburg, BMFZ, 35043 Marburg, Germany
| | - Jeannine Eckert
- Department of Parasitology, Philipps University Marburg, 35043 Marburg, Germany
| | - Thomas Müller
- Institute for Medical Microbiology, Immunology und Hygiene, Technical University Munich, Munich, Germany
| | - Tim Vierbuchen
- Division of Innate Immunity, Research Center Borstel, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
| | - Thomas Rickmeyer
- Institute for Pharmaceutical Chemistry, Philipps University Marburg, 35043 Marburg, Germany
| | - Simon Muche
- Department of Chemistry, Philipps University Marburg, 35043 Marburg, Germany
| | - Jude M Przyborski
- Department of Biochemistry and Molecular Biology, Interdisciplinary Research Center, Justus Liebig University Giessen, Giessen, Germany
| | - Holger Heine
- Division of Innate Immunity, Research Center Borstel, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
| | - Andreas Kaufmann
- Institute for Immunology, Philipps University Marburg, BMFZ, 35043 Marburg, Germany
| | - Stefan Baumeister
- Department of Parasitology, Philipps University Marburg, 35043 Marburg, Germany
| | - Klaus Lingelbach
- Department of Parasitology, Philipps University Marburg, 35043 Marburg, Germany
| | - Stefan Bauer
- Institute for Immunology, Philipps University Marburg, BMFZ, 35043 Marburg, Germany.
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11
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Dorna J, Kaufmann A, Bockmann V, Raifer H, West J, Matrosovich M, Bauer S. Effects of Receptor Specificity and Conformational Stability of Influenza A Virus Hemagglutinin on Infection and Activation of Different Cell Types in Human PBMCs. Front Immunol 2022; 13:827760. [PMID: 35359920 PMCID: PMC8963867 DOI: 10.3389/fimmu.2022.827760] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/16/2022] [Indexed: 11/13/2022] Open
Abstract
Humans can be infected by zoonotic avian, pandemic and seasonal influenza A viruses (IAVs), which differ by receptor specificity and conformational stability of their envelope glycoprotein hemagglutinin (HA). It was shown that receptor specificity of the HA determines the tropism of IAVs to human airway epithelial cells, the primary target of IAVs in humans. Less is known about potential effects of the HA properties on viral attachment, infection and activation of human immune cells. To address this question, we studied the infection of total human peripheral blood mononuclear cells (PBMCs) and subpopulations of human PBMCs with well characterized recombinant IAVs differing by the HA and the neuraminidase (NA) but sharing all other viral proteins. Monocytes and all subpopulations of lymphocytes were significantly less susceptible to infection by IAVs with avian-like receptor specificity as compared to human-like IAVs, whereas plasmacytoid dendritic cells (pDCs) and myeloid dendritic cells were equally susceptible to IAVs with avian-like and human-like receptor specificity. This tropism correlated with the surface expression of 2-3-linked sialic acids (avian-type receptors) and 2-6-linked sialic acids (human-type receptors). Despite a reduced infectivity of avian-like IAVs for PBMCs, these viruses were not less efficient than human-like IAVs in terms of cell activation as judged by the induction of cellular mRNA of IFN-α, CCL5, RIG-I, and IL-6. Elevated levels of IFN-α mRNA were accompanied by elevated IFN-α protein secretion in primary human pDC. We found that high basal expression in monocytes of antiviral interferon-induced transmembrane protein 3 (IFITM3) limited viral infection in these cells. siRNA-mediated knockdown of IFITM3 in monocytes demonstrated that viral sensitivity to inhibition by IFITM3 correlated with the conformational stability of the HA. Our study provides new insights into the role of host- and strain-specific differences of HA in the interaction of IAVs with human immune cells and advances current understanding of the mechanisms of viral cell tropism, pathogenesis and markers of virulence.
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Affiliation(s)
- Jens Dorna
- Institute for Immunology, Philipps University Marburg, Marburg, Germany
| | - Andreas Kaufmann
- Institute for Immunology, Philipps University Marburg, Marburg, Germany
| | - Viktoria Bockmann
- Institute for Immunology, Philipps University Marburg, Marburg, Germany
| | - Hartmann Raifer
- Core Facility FACS, Philipps University Marburg, Marburg, Germany
| | - Johanna West
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | - Mikhail Matrosovich
- Institute of Virology, Philipps University Marburg, Marburg, Germany
- *Correspondence: Stefan Bauer, ; Mikhail Matrosovich,
| | - Stefan Bauer
- Institute for Immunology, Philipps University Marburg, Marburg, Germany
- *Correspondence: Stefan Bauer, ; Mikhail Matrosovich,
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12
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Obermann HL, Lederbogen II, Steele J, Dorna J, Sander LE, Engelhardt K, Bakowsky U, Kaufmann A, Bauer S. RNA-Cholesterol Nanoparticles Function as Potent Immune Activators via TLR7 and TLR8. Front Immunol 2022; 12:658895. [PMID: 35126343 PMCID: PMC8814444 DOI: 10.3389/fimmu.2021.658895] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 01/26/2021] [Accepted: 12/27/2021] [Indexed: 12/30/2022] Open
Abstract
The innate immune system senses viral and bacterial ribonucleic acid (RNA) via pattern recognition receptors (PRR) leading to subsequent activation of the immune system. One group of RNA sensors is formed by endosomal/lysosomal Toll-like receptors (TLR) such as TLR7 and TLR8. During viral or bacterial infection, immunostimulatory RNA is part of the pathogen reaching the endosomal/lysosomal compartment after cellular uptake. Synthetic single-stranded or double-stranded oligoribonucleotides (ORN) can mimic RNA from pathogens and are widely used as activating ligands for TLR7 and TLR8. However, one limitation in the use of synthetic ORN driven immune stimulation is the need for transfection reagents for RNA delivery into cells. Here we demonstrate that the conjugation of cholesterol to a double-stranded version of immunostimulatory RNA40 strongly enhanced RNA uptake into monocytes and plasmacytoid dendritic cells when compared to naked RNA. Cholesterol-conjugated RNA (RNA-chol) formed nanoparticles that were superior to RNA-liposomes complexes in regard to induction of type I interferon from human and murine plasmacytoid dendritic cells as well as proinflammatory cytokine production (e.g. TNF-α, IL12p70 or IL-6) in human monocytes. Furthermore, the RNA40-chol induced cytokines in human monocyte cultures supported TH1 and TFH cell differentiation underscoring a strong adjuvant function of RNA-chol nanoparticles for adaptive immune responses. In summary, cholesterol-conjugated immunostimulatory RNA forms nanoparticles and functions as a potent immune adjuvant in human and murine immune cells. It further simplifies the use of immunostimulatory RNA by avoiding the need for liposomal transfection reagents.
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Affiliation(s)
| | - Ines I Lederbogen
- Institute for Immunology, Philipps-University Marburg, Marburg, Germany
| | - Jenny Steele
- Department of Infectious Diseases and Pulmonary Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Jens Dorna
- Institute for Immunology, Philipps-University Marburg, Marburg, Germany
| | - Leif Erik Sander
- Department of Infectious Diseases and Pulmonary Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Konrad Engelhardt
- Department of Pharmaceutics and Biopharmaceutics, Philipps-University Marburg, Marburg, Germany
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, Philipps-University Marburg, Marburg, Germany
| | - Andreas Kaufmann
- Institute for Immunology, Philipps-University Marburg, Marburg, Germany
| | - Stefan Bauer
- Institute for Immunology, Philipps-University Marburg, Marburg, Germany
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13
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Abdunnur R, Kaufmann A. [Künstliche Harnsphincter zur Behandlung von Stress-Harninkontinenz - eine oft nicht ausgelastete Behandlungsoption in Deutschland]. Urologe A 2021; 60:696-705. [PMID: 34097109 DOI: 10.1007/s00120-021-01544-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2021] [Indexed: 10/21/2022]
Abstract
ABSTRAKT Harninkontinenz ist in Deutschland weit verbreitet und betrifft Millionen von Frauen und Männern. Vor allem Männer, die postoperativ dauerhaft inkontinent sind, werden hierzulande trotz der ausreichenden Verfügbarkeit chirurgischer Optionen unterbehandelt. Der künstliche Schließmuskel wird seit Jahrzehnten erfolgreich zur Behandlung angeborener und erworbener Stress-Harninkontinenz bei Männern und Frauen sowie neurogener Harninkontinenz eingesetzt und wird in Form neuer Modelle weiterentwickelt. Aufgrund der guten Ergebnisse, Es gilt jetzt als Standardtherapie für Männer mit anhaltender, mittelschwerer bis schwerer Harninkontinenz. Die operationstechnische Technik ist anspruchsvoll, kann aber erlernt werden. Die meisten Komplikationen können in erfahrenen Händen deutlich reduziert werden. Patientenzufriedenheit mit künstlichen Harnsphinctern (AUS) ist hoch und korreliert mit der Kontinenzrate und nicht mit der relativ hohen Revisionsrate, weshalb diese Behandlungsoption in Deutschland zunehmend mehr Patienten mit mittelschwerer bis schwerer Harninkontinenz angeboten werden sollte. Urologen in der allgemeinen Praxis spielen in diesem Zusammenhang eine zentrale Rolle.
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Affiliation(s)
- R Abdunnur
- Klinik für Urologie und Kinderurologie, Helios-Klinikum Schwelm, Dr. Moeller-Str. 15, 58332, Schwelm, Deutschland.
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Viersener Straße 450, 41063, Mönchengladbach, Deutschland.
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14
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Klinghammer K, Politz O, Eder T, Otto R, Raguse JD, Albers A, Kaufmann A, Tinhofer I, Hoffmann J, Keller U, Keilholz U. Combination of copanlisib with cetuximab improves tumor response in cetuximab-resistant patient-derived xenografts of head and neck cancer. Oncotarget 2020; 11:3688-3697. [PMID: 33110476 PMCID: PMC7566806 DOI: 10.18632/oncotarget.27763] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 06/06/2020] [Accepted: 09/24/2020] [Indexed: 12/20/2022] Open
Abstract
Despite recent advances, the treatment of head and neck squamous cell carcinoma (HNSCC) remains an area of high unmet medical need. HNSCC is frequently associated with either amplification or mutational changes in the PI3K pathway, making PI3K an attractive target particularly in cetuximab-resistant tumors. Here, we explored the antitumor activity of the selective, pan-class I PI3K inhibitor copanlisib with predominant activity towards PI3Kα and δ in monotherapy and in combination with cetuximab using a mouse clinical trial set-up with 33 patient-derived xenograft (PDX) models with known HPV and PI3K mutational status and available data on cetuximab sensitivity. Treatment with copanlisib alone resulted in moderate antitumor activity with 12/33 PDX models showing either tumor stabilization or regression. Combination treatment with copanlisib and cetuximab was superior to either of the monotherapies alone in the majority of the models (21/33), and the effect was particularly pronounced in cetuximab-resistant tumors (14/16). While no correlation was observed between PI3K mutation status and response to either cetuximab or copanlisib, increased PI3K signaling activity evaluated through gene expression profiling showed a positive correlation with response to copanlisib. Together, these data support further investigation of PI3K inhibition in HNSCC and suggests gene expression patterns associated with PI3K signaling as a potential biomarker for predicting treatment responses.
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Affiliation(s)
| | - Oliver Politz
- Bayer AG, Research & Development, Pharmaceuticals, Berlin, Germany
| | - Theresa Eder
- Department of Radiooncology and Radiotherapy, Charité University Hospital, Berlin, Germany.,German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) Partner Sites, Berlin, Germany
| | - Raik Otto
- WBI, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Jan-Dirk Raguse
- Department of Maxillio-Facial Surgery, Fachklinik Hornheide, Münster, Germany
| | | | | | - Ingeborg Tinhofer
- Department of Radiooncology and Radiotherapy, Charité University Hospital, Berlin, Germany
| | - Jens Hoffmann
- Experimental Pharmacology & Oncology GmbH, Berlin, Germany
| | - Ulrich Keller
- Department of Hematology and Medical Oncology, Charité, Berlin, Germany
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15
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Optimized multimatrix calibration concept for liquid chromatography mass spectrometry-based bioanalysis methods. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1159:122393. [PMID: 33137679 DOI: 10.1016/j.jchromb.2020.122393] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/05/2020] [Accepted: 09/19/2020] [Indexed: 10/23/2022]
Abstract
In this paper, a calibration procedure for LC/MS-based bioanalysis methods, termed "A/B fortification", is proposed. The concept relies on the post-extraction fortification (B-spike) of an aliquot of the injection-ready sample extract for the determination and compensation of specific signal suppression or enhancement effects compared to matrix-free extract prepared in buffer or mobile phase. Conventional analyte recovery, observed due to the incomplete extraction of analytes from the sample or losses during a cleanup, is determined by the conventional pre-extraction fortification (A-spike) of a blank sample that belongs to the same type of matrix as the sample with the unknown analyte concentration. This approach permits a higher throughput than conventional sample fortification strategies. The results obtained by utilizing the A/B fortification concept were extensively compared against conventional methods (representative bank matrix fortification, sample fortification and internal standard). The proposed concept (based on the pre-fortification of a reference matrix and post-fortification of the sample) was found to be significantly less biased than internal standard-based techniques. The A/B fortification indicated a better accuracy than the sample fortification or representative blank matrix fortification approach and, most importantly, produced significantly fewer outliers. This was linked to the fact that in the case of the A/B fortification, the uncertainty of the subtraction of two peak areas (fortified minus unfortified sample) is reduced, because fortifications are not made prior to the extraction step but are made into the final injection-ready sample extract. Fortification into an injection-ready aliquot eliminates all sample processing-related differences (procedural errors), which can affect conventional sample fortification-based quantifications.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland.
| | - P Butcher
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - K Maden
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - S Walker
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - M Widmer
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
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16
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Jung S, von Thülen T, Yang I, Laukemper V, Rupf B, Janga H, Panagiotidis GD, Schoen A, Nicolai M, Schulte LN, Obermann HL, Weber F, Kaufmann A, Bauer S. A ribosomal RNA fragment with 2',3'-cyclic phosphate and GTP-binding activity acts as RIG-I ligand. Nucleic Acids Res 2020; 48:10397-10412. [PMID: 32946572 PMCID: PMC7544222 DOI: 10.1093/nar/gkaa739] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 08/19/2020] [Accepted: 08/26/2020] [Indexed: 12/13/2022] Open
Abstract
The RNA helicase RIG-I plays a key role in sensing pathogen-derived RNA. Double-stranded RNA structures bearing 5'-tri- or diphosphates are commonly referred to as activating RIG-I ligands. However, endogenous RNA fragments generated during viral infection via RNase L also activate RIG-I. Of note, RNase-digested RNA fragments bear a 5'-hydroxyl group and a 2',3'-cyclic phosphate. How endogenous RNA fragments activate RIG-I despite the lack of 5'-phosphorylation has not been elucidated. Here we describe an endogenous RIG-I ligand (eRL) that is derived from the internal transcribed spacer 2 region (ITS2) of the 45S ribosomal RNA after partial RNase A digestion in vitro, RNase A protein transfection or RNase L activation. The immunostimulatory property of the eRL is dependent on 2',3'-cyclic phosphate and its sequence is characterized by a G-quadruplex containing sequence motif mediating guanosine-5'-triphosphate (GTP) binding. In summary, RNase generated self-RNA fragments with 2',3'-cyclic phosphate function as nucleotide-5'-triphosphate binding aptamers activating RIG-I.
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Affiliation(s)
- Stephanie Jung
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
| | - Tina von Thülen
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
| | - Ines Yang
- Institut für Medizinische Mikrobiologie und Krankenhaushygiene, Medizinische Hochschule Hannover, Carl Neuberg Straße 1, 30625 Hannover, Germany
| | - Viktoria Laukemper
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
| | - Benjamin Rupf
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
| | - Harshavardhan Janga
- Institut für Lungenforschung/iLung, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
| | - Georgios-Dimitrios Panagiotidis
- Institut für Virologie, Fachbereich Veterinärmedizin (FB10), Justus-Liebig-Universität Gießen, Schubertstr. 81, 35392 Gießen, Germany
| | - Andreas Schoen
- Institut für Virologie, Fachbereich Veterinärmedizin (FB10), Justus-Liebig-Universität Gießen, Schubertstr. 81, 35392 Gießen, Germany
| | - Marina Nicolai
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
| | - Leon N Schulte
- Institut für Lungenforschung/iLung, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
- Deutsches Zentrum für Lungenforschung (DZL), 35392 Gießen, Germany
| | - Hannah-Lena Obermann
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
| | - Friedemann Weber
- Institut für Virologie, Fachbereich Veterinärmedizin (FB10), Justus-Liebig-Universität Gießen, Schubertstr. 81, 35392 Gießen, Germany
| | - Andreas Kaufmann
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
| | - Stefan Bauer
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Hans-Meerwein-Straße 2, 35043 Marburg, Germany
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Müller H, Fehling SK, Dorna J, Urbanowicz RA, Oestereich L, Krebs Y, Kolesnikova L, Schauflinger M, Krähling V, Magassouba N, Fichet-Calvet E, Ball JK, Kaufmann A, Bauer S, Becker S, von Messling V, Strecker T. Adjuvant formulated virus-like particles expressing native-like forms of the Lassa virus envelope surface glycoprotein are immunogenic and induce antibodies with broadly neutralizing activity. NPJ Vaccines 2020; 5:71. [PMID: 32802410 PMCID: PMC7403343 DOI: 10.1038/s41541-020-00219-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 01/29/2020] [Accepted: 07/10/2020] [Indexed: 01/11/2023] Open
Abstract
Lassa mammarenavirus (LASV) is a rodent-borne arenavirus endemic to several West African countries. It is the causative agent of human Lassa fever, an acute viral hemorrhagic fever disease. To date, no therapeutics or vaccines against LASV have obtained regulatory approval. Polyclonal neutralizing antibodies derived from hyperimmunized animals may offer a useful strategy for prophylactic and therapeutic intervention to combat human LASV infections. The LASV envelope surface glycoprotein complex (GP) is the major target for neutralizing antibodies, and it is the main viral antigen used for the design of an LASV vaccine. Here, we assessed the immunogenic potential of mammalian cell-derived virus-like particles (VLPs) expressing GP from the prototypic LASV strain Josiah in a native-like conformation as the sole viral antigen. We demonstrate that an adjuvanted prime-boost immunization regimen with GP-derived VLPs elicited neutralizing antibody responses in rabbits, suggesting that effective antigenic epitopes of GP were displayed. Notably, these antibodies exhibited broad reactivity across five genetic lineages of LASV. VLP-based immunization strategies may represent a powerful approach for generating polyclonal sera containing cross-reactive neutralizing antibodies against LASV.
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Affiliation(s)
- Helena Müller
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | | | - Jens Dorna
- Institute of Immunology, Philipps University Marburg, Marburg, Germany
| | - Richard A Urbanowicz
- Wolfson Centre for Global Virus Infections, University of Nottingham, Nottingham, UK.,School of Life Sciences, University of Nottingham, Nottingham, UK
| | - Lisa Oestereich
- Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany.,German Center for Infection Research (DZIF), Partner Sites Gießen-Marburg-Langen and Hamburg-Borstel-Lübeck-Riems, Hamburg, Germany
| | - Yvonne Krebs
- Veterinary Medicine Division, Paul-Ehrlich-Institut, Langen, Germany
| | | | | | - Verena Krähling
- Institute of Virology, Philipps University Marburg, Marburg, Germany.,German Center for Infection Research (DZIF), Partner Sites Gießen-Marburg-Langen and Hamburg-Borstel-Lübeck-Riems, Hamburg, Germany
| | | | - Elisabeth Fichet-Calvet
- Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany.,German Center for Infection Research (DZIF), Partner Sites Gießen-Marburg-Langen and Hamburg-Borstel-Lübeck-Riems, Hamburg, Germany
| | - Jonathan K Ball
- Wolfson Centre for Global Virus Infections, University of Nottingham, Nottingham, UK.,School of Life Sciences, University of Nottingham, Nottingham, UK
| | - Andreas Kaufmann
- Institute of Immunology, Philipps University Marburg, Marburg, Germany
| | - Stefan Bauer
- Institute of Immunology, Philipps University Marburg, Marburg, Germany
| | - Stephan Becker
- Institute of Virology, Philipps University Marburg, Marburg, Germany.,German Center for Infection Research (DZIF), Partner Sites Gießen-Marburg-Langen and Hamburg-Borstel-Lübeck-Riems, Hamburg, Germany
| | - Veronika von Messling
- German Center for Infection Research (DZIF), Partner Sites Gießen-Marburg-Langen and Hamburg-Borstel-Lübeck-Riems, Hamburg, Germany.,Veterinary Medicine Division, Paul-Ehrlich-Institut, Langen, Germany.,Present Address: Federal Ministry for Education and Research, Berlin, Germany
| | - Thomas Strecker
- Institute of Virology, Philipps University Marburg, Marburg, Germany
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18
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Böthig R, Schöps W, Zellner M, Fiebag K, Kowald B, Hirschfeld S, Thietje R, Kurze I, Böhme H, Kaufmann A, Jungmann O, Zumbé J, Porres D, Lümmen G, Nehiba M, Kadhum T, Forchert M, Golka K. [Urinary bladder cancer as a late sequela of spinal cord injury : Decision-making aids for assessment of this causal association]. Urologe A 2020; 59:700-709. [PMID: 32020241 DOI: 10.1007/s00120-020-01124-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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] [Indexed: 12/20/2022]
Abstract
BACKGROUND There is to date no convincing literature that has assessed the association between traumatic spinal cord injury (SCI) and the later development of urinary bladder cancer. The aim of this work is to present medical experts as well as the national accident insurance and the social courts decision-making aids based on the latest medical scientific knowledge, for assessment of this causal association. MATERIALS AND METHODS A study conducted between April 1998 and March 2017 in the BG Trauma Hospital Hamburg forms the basis for the decision-making aids. Urinary bladder cancer was diagnosed in 32 out of 6432 treated outpatient and inpatient SCI patients. Furthermore, relevant published literature was taken into consideration for the decision-making aids. RESULTS It was found that urinary bladder cancer in SCI patients occurs at a considerably younger age as compared to the general population, more frequently shows muscle invasive carcinoma with a higher grade at first diagnosis and a higher proportion of the more aggressive squamous cell carcinoma than that of the general population. Correspondingly, the survival time is extremely unfavorable. For medical experts a matrix was compiled where the various influencing factors, either for or against the recognition of an association between SCI and urinary bladder cancer, were weighted according to their relevance. CONCLUSION The results showed that urinary bladder cancer in SCI patients differs considerably from that of able-bodied patients. These differences drastically shorten the survival time. A study on patients with spina bifida, i.e., a congenital spinal cord disorder, corroborates these observations. They indicate histopathological differences that have so far been intangible.
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Affiliation(s)
- R Böthig
- Abteilung Neuro-Urologie, Querschnittgelähmten-Zentrum, BG Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland.
| | | | - M Zellner
- Abteilung für Urologie und Neuro-Urologie, Johannesbad Fachklinik, Bad Füssing, Deutschland
| | - K Fiebag
- Abteilung Neuro-Urologie, Querschnittgelähmten-Zentrum, BG Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland
| | - B Kowald
- Biomechanisches Labor, BG Klinikum Hamburg, Hamburg, Deutschland
| | - S Hirschfeld
- Querschnittgelähmten-Zentrum, BG Klinikum Hamburg, Hamburg, Deutschland
| | - R Thietje
- Querschnittgelähmten-Zentrum, BG Klinikum Hamburg, Hamburg, Deutschland
| | - I Kurze
- Querschnittgelähmten-Zentrum, Klinik für Paraplegiologie und Neuro-Urologie, Zentralklinik Bad Berka, Bad Berka, Deutschland
| | - H Böhme
- Klinik für Urologie, Asklepios Klinik Barmbek, Hamburg, Deutschland
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Krankenhaus St. Franziskus, Kliniken Maria Hilf GmbH, Mönchengladbach, Deutschland
| | - O Jungmann
- Urologische Klinik Lindenthal, Malteser Krankenhaus St. Hildegardis, Köln, Deutschland
| | - J Zumbé
- Klinik für Urologie, Klinikum Leverkusen, Leverkusen, Deutschland
| | - D Porres
- Klinik für Urologie, Klinikum Leverkusen, Leverkusen, Deutschland
| | - G Lümmen
- Urologische Abteilung, St. Josef Hospital, Betriebsstätte St. Josef Troisdorf, GFO Kliniken Troisdorf, Troisdorf, Deutschland
| | - M Nehiba
- Abteilung Neuro-Urologie, Werner-Wicker-Klinik, Bad Wildungen, Deutschland
| | - T Kadhum
- Zentrale Einrichtung Klinische Arbeitsmedizin, Leibniz-Institut für Arbeitsforschung an der TU Dortmund (IfADo), Dortmund, Deutschland
- Mittelrhein-Klinik Fachklinik für psychosomatische Rehabilitation, Boppard, Bad Salzig, Deutschland
| | - M Forchert
- Berufsgenossenschaft Holz und Metall, Stabsstelle UV-Recht, Bielefeld, Deutschland
| | - K Golka
- Zentrale Einrichtung Klinische Arbeitsmedizin, Leibniz-Institut für Arbeitsforschung an der TU Dortmund (IfADo), Dortmund, Deutschland
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19
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Garland SM, Stanley MA, Giuliano AR, Moscicki AB, Kaufmann A, Bhatla N, Woo YL. IPVS statement on "Temporary HPV vaccine shortage: Implications globally to achieve equity". Papillomavirus Res 2020; 9:100195. [PMID: 32205196 PMCID: PMC7109621 DOI: 10.1016/j.pvr.2020.100195] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 12/30/2019] [Indexed: 11/21/2022]
Affiliation(s)
- Suzanne M Garland
- Reproductive & Neonatal Infectious Diseases, Department of Obstetrics and Gynaecology, University of Melbourne, Director Centre Women's Infectious Diseases Research, Honorary Research Fellow, Infection & Immunity, Murdoch Children's Research Institute, Parkville, VIC, 3052, Australia.
| | | | - Anna R Giuliano
- Dorothea Bennett Memorial, American Cancer Society (ACS), Clinical Research Professor, 12902 Magnolia Drive, Tampa, FL, 33612, USA; Center for Immunization and Infection Research in Cancer (CIIRC), Moffitt Cancer Center, 12902 Magnolia Drive, Tampa, FL, 33612, USA.
| | | | - Andreas Kaufmann
- Gynäkologie Mit Hochschulambulanz, Charite Campus Benjamin Franklin, Hindenburgdamm 30, 12200, Berlin, Germany.
| | - Neerja Bhatla
- Department of Obstetrics & Gynaecology, Room 3101, Teaching Block, All India Institute of Medical Sciences, New Delhi, 110029, India.
| | - Yin Ling Woo
- Department of Obstetric and Gynaecology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, W.Persekutuan Kuala Lumpur, Malaysia.
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20
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Does the ion mobility resolving power as provided by commercially available ion mobility quadrupole time-of-flight mass spectrometry instruments permit the unambiguous identification of small molecules in complex matrices? Anal Chim Acta 2020; 1107:113-126. [DOI: 10.1016/j.aca.2020.02.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/10/2020] [Accepted: 02/14/2020] [Indexed: 12/17/2022]
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21
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Höfner K, Hampel C, Kirschner-Hermanns R, Alloussi SH, Bauer RM, Bross S, Bschleipfer T, Goepel M, Haferkamp A, Hüsch T, Kaufmann A, Kiss G, Kranz J, Oelke M, Pannek J, Reitz A, Rutkowski M, Schäfer W, Schulte-Baukloh H, Schumacher S, Seif C, Schultz-Lampel D. [Use of synthetic slings and mesh implants in the treatment of female stress urinary incontinence and prolapse : Statement of the Working Group on Urological Functional Diagnostics and Female Urology of the Academy of the German Society of Urology]. Urologe A 2020; 59:65-71. [PMID: 31741004 DOI: 10.1007/s00120-019-01074-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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] [Indexed: 11/28/2022]
Abstract
Due to a safety alert issued by the US Food and Drug Administration (FDA) in 2011 for transvaginal mesh implants to treat female prolapse as a result of numerous reports of complications such as infection, chronic pain, dyspareunia, vaginal erosion, shrinkage and erosion into other organs nearly all industrial products have been withdrawn from the market in the meantime. The United Kingdom, Australia, and New Zealand extended warnings and prohibitions even on the implantation of midurethral slings (TVT, TOT). In view of these current international controversies regarding the use of implanted materials for the treatment of stress incontinence and prolapse and the lack of clear guidelines for the use of biomaterials, the opinion of the Working Group on Urological Functional Diagnostics and Female Urology should provide clarity. The Opinion is based on the SCENIHR Report of the "European Commission's Scientific Committee on Emerging and Newly Identified Health Risks", the "Consensus Statement of the European Urology Association and the European Urogynaecological Association on the Use of Implanted Materials for Treating Pelvic Organ Prolapse and Stress Urinary Incontinence" and in compliance with relevant EAU and national guidelines and the opinion of the Association for Urogynaecology and Plastic Pelvic Floor Reconstruction (AGUB eV). In addition, recommendations are given for the future handling of implants of slings and meshes for the treatment of stress incontinence and prolapse from a urologic viewpoint.
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Affiliation(s)
- K Höfner
- Urologische Klinik, Evangelisches Krankenhaus Oberhausen, Virchowstr. 20, 46047, Oberhausen, Deutschland.
| | - C Hampel
- Urologische Abteilung, Marien-Hospital Erwitte, Erwitte, Deutschland
| | - R Kirschner-Hermanns
- Neuro-Urologie/Urologie Universitätsklinikum Bonn und Neuro-Urologie, Neurologisches Rehabilitationszentrum der Godeshöhe e. V., Bonn, Deutschland
| | - S H Alloussi
- Abteilung Urologie, Universitätsspital Basel, Basel, Schweiz
| | - R M Bauer
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, Campus Großhadern, München, Deutschland
| | - S Bross
- Urologische Klinik, Fürst-Stirum-Klinik Bruchsal, Bruchsal, Deutschland
| | - T Bschleipfer
- Klinik für Urologie, Andrologie und Kinderurologie, Klinikum Weiden/Kliniken Nordoberpfalz AG, Weiden i. d. Oberpfalz, Deutschland
| | - M Goepel
- Klinik für Urologie und Nephrologie, Helios Klinikum Niederberg, Velbert, Deutschland
| | - A Haferkamp
- Urologische Klinik und Poliklinik, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Mainz, Deutschland
| | - T Hüsch
- Urologische Klinik und Poliklinik, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Mainz, Deutschland
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH Mönchengladbach, Mönchengladbach, Deutschland
| | - G Kiss
- Institution Neuro-Urologische Ambulanz, Univ. Klinik f. Urologie Innsbruck, Innsbruck, Österreich
| | - J Kranz
- St.-Antonius Hospital, Klinik für Urologie und Kinderurologie Eschweiler, Eschweiler, Deutschland
- Universitätsklinik und Poliklinik für Urologie, Universitätsklinikum Halle (Saale), Halle (Saale), Deutschland
| | - M Oelke
- Klinik für Urologie, Kinderurologie und Urologische Onkologie, St. Antonius-Hospital Gronau, Gronau, Deutschland
| | - J Pannek
- Neuro-Urologie, Schweizer Paraplegiker-Zentrum Nottwil, Nottwil, Schweiz
- Urologische Klinik, Inselspital, Universitätsspital, Universität Bern, Bern, Schweiz
| | - A Reitz
- KontinenzZentrum Hirslanden Zürich, Zürich, Schweiz
| | - M Rutkowski
- Urologische Klinik, Landesklinikum Korneuburg, Korneuburg, Österreich
| | | | - H Schulte-Baukloh
- Urologie Turmstraße (Gemeinschaftspraxis), Berlin Mitte/Moabit, Deutschland
| | - S Schumacher
- Urology Department, Healthpoint Hospital, Abu Dhabi, Vereinigte Arabische Emirate
| | - C Seif
- Urologiezentrum Alter Markt, Kiel, Deutschland
| | - D Schultz-Lampel
- Kontinenzzentrum Südwest, Schwarzwald-Baar Klinikum Villingen-Schwenningen, Villingen-Schwenningen, Deutschland
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22
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Behluli I, Le Renard P, Rozwag K, Oppelt P, Kaufmann A, Schneider A. Oncoplastic breast surgery versus conventional breast-conserving surgery: a comparative retrospective study. ANZ J Surg 2019; 89:1236-1241. [PMID: 30990940 PMCID: PMC6849881 DOI: 10.1111/ans.15245] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/19/2019] [Accepted: 03/23/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND In addition to conventional breast-conserving surgery (BCS), oncoplastic breast surgery (OBS) is an operation technique that strives simultaneously to increase oncological safety and patient's satisfaction. It is the combination of the best-proven techniques in plastic surgery with surgery for breast cancer. In a growing number of indications, OBS overcomes the limit of conventional BCS by allowing larger resection volumes while avoiding deformities. The aim of our retrospective study (2012-2014) was to compare oncological outcomes of OBS versus BCS. METHODS We compared two groups of patients with primary non-metastatic breast tumours: group A (n = 291), where BCS was performed, versus group B (n = 52), where OBS was performed. Surgical interventions were performed in German and Swiss teaching hospital settings. The surgeon for group B had subspecialist training in OBS. We assessed outcome in term of re-excision rates, resection margin and complications. RESULTS Groups were homogenous (no significant differences in terms of age, tumour size, tumour type or grade). The resection margin was larger in group B (7 mm) than in group A (3 mm). Re-excision rate of group B (8%) was significantly lower than in group A (31%). Complication rates were comparably low in groups A and B. CONCLUSION Despite the limits of retrospective design, our study confirms that OBS is safe and reduces the re-excision rates and the need for further surgery. OBS has the potential to improve oncological care and should be more widely adopted.
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Affiliation(s)
- Ilmi Behluli
- Department of Gynaecology and Gynaecological OncologyCharité University Medicine BerlinBerlinGermany
- Department of GynaecologyKantonsspital BasellandLiestalSwitzerland
- Department of Gynaecology, Obstetrics and Gynaecological Endocrinology, Kepler University HospitalJohannes Kepler University LinzLinzAustria
| | - Pol‐Edern Le Renard
- Department of Gynaecology, Obstetrics and Gynaecological Endocrinology, Kepler University HospitalJohannes Kepler University LinzLinzAustria
| | - Kamila Rozwag
- Department of Gynaecology and Gynaecological OncologyCharité University Medicine BerlinBerlinGermany
| | - Peter Oppelt
- Department of Gynaecology, Obstetrics and Gynaecological Endocrinology, Kepler University HospitalJohannes Kepler University LinzLinzAustria
| | - Andreas Kaufmann
- Department of Gynaecology and Gynaecological OncologyCharité University Medicine BerlinBerlinGermany
| | - Achim Schneider
- Department of Gynaecology and Gynaecological OncologyCharité University Medicine BerlinBerlinGermany
- Medizinisches Versorgungszentrum im Fürstenberg‐Karree Berlin (MVZ)BerlinGermany
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23
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Hillemanns P, Friese K, Dannecker C, Klug S, Seifert U, Iftner T, Hädicke J, Löning T, Horn L, Schmidt D, Ikenberg H, Steiner M, Freitag U, Siebert U, Sroczynski G, Sauerbrei W, Beckmann MW, Gebhardt M, Friedrich M, Münstedt K, Schneider A, Kaufmann A, Petry KU, Schäfer APA, Pawlita M, Weis J, Mehnert A, Fehr M, Grimm C, Reich O, Arbyn M, Kleijnen J, Wesselmann S, Nothacker M, Follmann M, Langer T, Jentschke M. Prevention of Cervical Cancer: Guideline of the DGGG and the DKG (S3 Level, AWMF Register Number 015/027OL, December 2017) - Part 1 with Introduction, Screening and the Pathology of Cervical Dysplasia. Geburtshilfe Frauenheilkd 2019; 79:148-159. [PMID: 30792545 PMCID: PMC6379164 DOI: 10.1055/a-0818-5440] [Citation(s) in RCA: 7] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/03/2018] [Accepted: 12/08/2018] [Indexed: 12/16/2022] Open
Abstract
Aims Annual opportunistic screening for cervical carcinoma has been carried out in Germany since 1971. The creation of this S3 guideline meets an important need, outlined in the National Cancer Plan, with regard to screening for cervical cancer, as the guideline aims to provide important information and support for planned organized screening for cervical cancer in Germany. Methods With the financial support of German Cancer Aid, 21 professional societies developed evidence-based statements and recommendations (classified using the GRADE system) for the screening, management and treatment of precancerous conditions of the cervix. Two independent scientific institutes compiled systematic reviews for this guideline. Recommendations The first part of this short summary presents the pathological basis and considers various questions related to screening for cervical cancer. As also reported in earlier reviews, the meta-analysis by Kleijnen Systematic Reviews showed that HPV-based screening offers better protection against invasive cervical cancer compared to cytology-based screening. The authors of this guideline therefore recommend - in accordance with the guideline of the Joint National Committee of Germany (Gemeinsamer Bundesauschuss, G-BA) - that women aged 35 and above should be examined at regular intervals (at least every 3 years) and undergo HPV-based screening. Co-testing can also be carried out. Women between the ages of 20 and 35 should have cytological screening every 2 years.
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Affiliation(s)
- Peter Hillemanns
- Klinik für Frauenheilkunde und Geburtshilfe, Medizinische Hochschule Hannover, Hannover, Germany
| | | | - Christian Dannecker
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, München, Germany
| | - Stefanie Klug
- Lehrstuhl für Epidemiologie, Technische Universität München, München, Germany
| | - Ulrike Seifert
- Tumorepidemiologie, Universitäts KrebsCentrum (UCC), Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden, Germany
| | - Thomas Iftner
- Institut für Medizinische Virologie und Epidemiologie der Viruskrankheiten, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Juliane Hädicke
- Institut für Medizinische Virologie und Epidemiologie der Viruskrankheiten, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Thomas Löning
- Institut für Pathologie, Albertinen-Krankenhaus Hamburg, Hamburg, Germany
| | - Lars Horn
- Institut für Pathologie, Universitätsklinikum Leipzig, Leipzig, Germany
| | - Dietmar Schmidt
- Institut für Pathologie, Referenzzentrum für Gynäkopathologie, Mannheim, Germany
| | - Hans Ikenberg
- CytoMol - MVZ für Zytologie und Molekularbiologie, Frankfurt, Germany
| | - Manfred Steiner
- Facharzt für Frauenheilkunde und Geburtshilfe, Ihringen, Germany
| | - Ulrich Freitag
- Facharzt für Frauenheilkunde und Geburtshilfe, Wismar, Germany
| | - Uwe Siebert
- Institute of Public Health, Medical Decision Making and Health Technology Assessment, Department of Public Health, Health Services Research and Health Technology Assessment, UMIT - University for Health Sciences, Medical Informatics and Technology, Hall i. T., Austria.,Division of Health Technology Assessment and Bioinformatics, ONCOTYROL - Center for Personalized Cancer Medicine, Innsbruck, Austria
| | - Gaby Sroczynski
- Institute of Public Health, Medical Decision Making and Health Technology Assessment, Department of Public Health, Health Services Research and Health Technology Assessment, UMIT - University for Health Sciences, Medical Informatics and Technology, Hall i. T., Austria
| | - Willi Sauerbrei
- Institut für Med. Biometrie und Statistik (IMBI), Universitätsklinikum Freiburg, Freiburg, Germany
| | | | | | - Michael Friedrich
- Klinik für Frauenheilkunde und Geburtshilfe, Helios Klinikum Krefeld, Krefeld, Germany
| | - Karsten Münstedt
- Frauenklinik, Ortenau Klinikum Offenburg-Gengenbach, Offenburg, Germany
| | - Achim Schneider
- Medizinisches Versorgungszentrum im Fürstenberg-Karree, Berlin, Germany
| | - Andreas Kaufmann
- Klinik für Gynäkologie, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | | | | | | | - Joachim Weis
- Klinik für Tumorbiologie, Klinik für Onkologische Rehabilitation - UKF Reha gGmbH, Freiburg, Germany
| | - Anja Mehnert
- Abteilung für Medizinische Psychologie und Medizinische Soziologie, Universitätsklinikum Leipzig, Leipzig, Germany
| | - Mathias Fehr
- Gynäkologie & Geburtshilfe in Frauenfeld, Spital Thurgau AG, Frauenfeld, Switzerland
| | | | - Olaf Reich
- Privatklinik Graz Ragnitz, Graz, Austria
| | - Marc Arbyn
- Cancer Center, Sciensano, Brüssel, Belgium
| | - Jos Kleijnen
- Kleijnen Systematic Reviews Ltd, York, United Kingdom
| | | | - Monika Nothacker
- AWMF-Institut für Medizinisches Wissensmanagement, Marburg, Germany
| | - Markus Follmann
- Leitlinienprogramm Onkologie, Deutsche Krebsgesellschaft, Berlin, Germany
| | - Thomas Langer
- Leitlinienprogramm Onkologie, Deutsche Krebsgesellschaft, Berlin, Germany
| | - Matthias Jentschke
- Klinik für Frauenheilkunde und Geburtshilfe, Medizinische Hochschule Hannover, Hannover, Germany
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24
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Hillemanns P, Friese K, Dannecker C, Klug S, Seifert U, Iftner T, Hädicke J, Löning T, Horn L, Schmidt D, Ikenberg H, Steiner M, Freitag U, Siebert U, Sroczynski G, Sauerbrei W, Beckmann MW, Gebhardt M, Friedrich M, Münstedt K, Schneider A, Kaufmann A, Petry KU, Schäfer APA, Pawlita M, Weis J, Mehnert A, Fehr M, Grimm C, Reich O, Arbyn M, Kleijnen J, Wesselmann S, Nothacker M, Follmann M, Langer T, Jentschke M. Prevention of Cervical Cancer: Guideline of the DGGG and the DKG (S3 Level, AWMF Register Number 015/027OL, December 2017) - Part 2 on Triage, Treatment and Follow-up. Geburtshilfe Frauenheilkd 2019; 79:160-176. [PMID: 30792546 PMCID: PMC6379166 DOI: 10.1055/a-0828-7722] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/20/2018] [Accepted: 12/20/2018] [Indexed: 02/08/2023] Open
Abstract
Aims Annual opportunistic screening for cervical carcinoma has been done in Germany since 1971. The creation of this S3 guideline meets an important need, outlined in the National Cancer Plan, with regard to screening for cervical cancer, as this guideline aims to provide important information and support for planned organized screening for cervical cancer in Germany. Methods With the financial support of German Cancer Aid, 21 professional societies developed evidence-based statements and recommendations (classified using the GRADE system) for the screening, management and treatment of precancerous conditions of the cervix. Two independent scientific institutes compiled systematic reviews for this guideline. Recommendations The second part of this short summary deals with the triage, treatment and follow-up care of cervical dysplasia. With regard to those women who do not participate in screening, the guideline authors recommend sending out repeat invitation letters or an HPV self-collection kit. Colposcopy should be carried out for further investigation if cytology findings are Pap II-p and HPV test results are positive or if the results of an HPV 16 or HPV 18 screening test are positive. A single abnormal Pap smear should be triaged and investigated using HPV testing or p16/Ki67 dual staining.
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Affiliation(s)
- Peter Hillemanns
- Klinik für Frauenheilkunde und Geburtshilfe, Medizinische Hochschule Hannover, Hannover, Germany
| | | | - Christian Dannecker
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, München, Germany
| | - Stefanie Klug
- Lehrstuhl für Epidemiologie, Technische Universität München, München, Germany
| | - Ulrike Seifert
- Tumorepidemiologie, Universitäts KrebsCentrum (UCC), Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden, Germany
| | - Thomas Iftner
- Institut für Medizinische Virologie und Epidemiologie der Viruskrankheiten, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Juliane Hädicke
- Institut für Medizinische Virologie und Epidemiologie der Viruskrankheiten, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Thomas Löning
- Institut für Pathologie, Albertinen-Krankenhaus Hamburg, Hamburg, Germany
| | - Lars Horn
- Institut für Pathologie, Universitätsklinikum Leipzig, Leipzig, Germany
| | - Dietmar Schmidt
- Institut für Pathologie, Referenzzentrum für Gynäkopathologie, Mannheim, Germany
| | - Hans Ikenberg
- CytoMol - MVZ für Zytologie und Molekularbiologie, Frankfurt, Germany
| | - Manfred Steiner
- Facharzt für Frauenheilkunde und Geburtshilfe, Ihringen, Germany
| | - Ulrich Freitag
- Facharzt für Frauenheilkunde und Geburtshilfe, Wismar, Germany
| | - Uwe Siebert
- Institute of Public Health, Medical Decision Making and Health Technology Assessment, Department of Public Health, Health Services Research and Health Technology Assessment, UMIT - University for Health Sciences, Medical Informatics and Technology, Hall i.T., Austria.,Division of Health Technology Assessment and Bioinformatics, ONCOTYROL - Center for Personalized Cancer Medicine, Innsbruck, Austria
| | - Gaby Sroczynski
- Institute of Public Health, Medical Decision Making and Health Technology Assessment, Department of Public Health, Health Services Research and Health Technology Assessment, UMIT - University for Health Sciences, Medical Informatics and Technology, Hall i.T., Austria
| | - Willi Sauerbrei
- Institut für Med. Biometrie und Statistik (IMBI), Universitätsklinikum Freiburg, Freiburg, Germany
| | | | | | - Michael Friedrich
- Klinik für Frauenheilkunde und Geburtshilfe, Helios Klinikum Krefeld, Krefeld, Germany
| | - Karsten Münstedt
- Frauenklinik, Ortenau Klinikum Offenburg-Gengenbach, Offenburg, Germany
| | - Achim Schneider
- Medizinisches Versorgungszentrum im Fürstenberg-Karree, Berlin, Germany
| | - Andreas Kaufmann
- Klinik für Gynäkologie, Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | | | | | | | - Joachim Weis
- Klinik für Tumorbiologie, Klinik für Onkologische Rehabilitation - UKF Reha gGmbH, Freiburg, Germany
| | - Anja Mehnert
- Abteilung für Medizinische Psychologie und Medizinische Soziologie, Universitätsklinikum Leipzig, Leipzig, Germany
| | - Mathias Fehr
- Gynäkologie & Geburtshilfe in Frauenfeld, Spital Thurgau AG, Frauenfeld, Switzerland
| | | | - Olaf Reich
- Privatklinik Graz Ragnitz, Graz, Austria
| | - Marc Arbyn
- Cancer Center, Sciensano, Brüssel, Belgium
| | - Jos Kleijnen
- Kleijnen Systematic Reviews Ltd, York, United Kingdom
| | | | - Monika Nothacker
- AWMF-Institut für Medizinisches Wissensmanagement, Marburg, Germany
| | - Markus Follmann
- Leitlinienprogramm Onkologie, Deutsche Krebsgesellschaft, Berlin, Germany
| | - Thomas Langer
- Leitlinienprogramm Onkologie, Deutsche Krebsgesellschaft, Berlin, Germany
| | - Matthias Jentschke
- Klinik für Frauenheilkunde und Geburtshilfe, Medizinische Hochschule Hannover, Hannover, Germany
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Baal N, Cunningham S, Obermann HL, Thomas J, Lippitsch A, Dietert K, Gruber AD, Kaufmann A, Michel G, Nist A, Stiewe T, Rupp O, Goesmann A, Zukunft S, Fleming I, Bein G, Lohmeyer J, Bauer S, Hackstein H. ADAR1 Is Required for Dendritic Cell Subset Homeostasis and Alveolar Macrophage Function. J I 2019; 202:1099-1111. [DOI: 10.4049/jimmunol.1800269] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 12/07/2018] [Indexed: 11/19/2022]
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Farbmacher E, Bregolin T, Friedrich LM, Mechtcheriakov S, Kaufmann A, Hausmann A, Weiner R, Hofer A, Zernig G. Optimization of a combined therapeutic drug monitoring – pharmacogenetic (TDMPG) approach to explain subtherapeutic, therapeutic and supratherapeutic concentrations of neuropsychopharmacologic medications. PHARMACOPSYCHIATRY 2018. [DOI: 10.1055/s-0038-1649530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - T Bregolin
- Abteilung für Experimentelle Psychiatrie
| | - LM Friedrich
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - S Mechtcheriakov
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - A Kaufmann
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - A Hausmann
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - R Weiner
- humatrix AG, Pfungstadt, Germany
| | - A Hofer
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - G Zernig
- Abteilung für Experimentelle Psychiatrie
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Kaufmann A. [Urodynamic studies prior to urinary incontinence surgery : What is useful?]. Urologe A 2017; 56:1539-1547. [PMID: 29079907 DOI: 10.1007/s00120-017-0530-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Surgery is often necessary after failure of conservative therapy for urinary incontinence. Guidelines recommend urodynamic studies before surgery. A distinction is made between non-invasive (uroflowmetry) and invasive methods (cystometry and pressure-flow study, if necessary as combined videourodynamics, as well as urethral pressure profile). All examinations serve to objectify and quantify the symptoms, to correctly assign symptoms to the pathophysiology and anatomy as well as to identify risk factors, which often have a significant influence on the success of surgical therapy. Given appropriate experience, complications and often significant sequelae of bladder dysfunction affecting the patient's quality of life and life expectancy can be recognized. Urodynamic studies are performed to help narrow down potential diagnoses, to develop therapeutic strategies, and to obtain prognostic parameters. The following article is intended to provide some support.
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Affiliation(s)
- A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Akademisches Lehrkrankenhaus der Uniklinik RWTH Aachen, Viersener Straße 450, 41063, Mönchengladbach, Deutschland.
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Edmondson R, Crosbie E, Nickkho-Amiry M, Kaufmann A, Stelloo E, Nijman H, Leary A, Auguste A, Mileshkin L, Pollock P, MacKay H, Powell M, Bosse T, Creutzberg C, Kitchener H. Markers of the p53 pathway further refine molecular profiling in high-risk endometrial cancer: A Trans PORTEC initiative. Gynecol Oncol 2017; 146:327-333. [DOI: 10.1016/j.ygyno.2017.05.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/09/2017] [Indexed: 10/19/2022]
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Bremer J, Domurath B, Böthig R, Kaufmann A, Geng V. [Medical quality standards for selected urological aids and devices : Consensus for patients with neurogenic urinary bladder dysfunction]. Urologe A 2017; 57:155-163. [PMID: 28707096 DOI: 10.1007/s00120-017-0457-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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] [Indexed: 11/26/2022]
Abstract
BACKGROUND Using the CE mark of therapeutic appliances is, on its own, not sufficient enough for their appropriate and effective application. In order to treat the patient successfully, not jeopardizing the success of the treatment, medical quality criteria for therapeutic appliances care are necessary to acceptably compensate for a patient's disabilities. OBJECTIVES Medical quality criteria are formulated for the most frequently used urological aids and devices, considering hygienic requirements, international literature and the practical experience of physicians and nurses with regard to the care of patients with neurogenic urinary bladder dysfunction. METHODS An expert group of urologists, surgeons, rehabilitation physicians and nurses has developed medical quality criteria via a structured consensus procedure. Developing these criteria, the group has taken into account current jurisprudence, the current resource directory of neurourological relevant aids, data from international literature and hygiene requirements. RESULTS Medical quality requirements are discussed and defined for selected groups of urological devices (single use catheters, indwelling catheters, external catheters, urine bags, templates and diapers as well as devices for the electrostimulation of nerves). CONCLUSION The presented quality requirements offer the possibility to stabilize quality of care with neurourological relevant therapeutic appliances. The catalogue of therapeutic appliances must be urgently updated. Urinal catheters for single use must be classified as an individual product group. Devices for anterior root stimulation and neuromodulation must be included in the resource directory. The incontinence severity classification needs to be reviewed.
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Affiliation(s)
- J Bremer
- BDH-Klinik Greifswald, Karl-Liebknecht-Ring 26a, 17491, Greifswald, Deutschland
| | - B Domurath
- Kliniken Beelitz GmbH, Paracelsus-Ring 6A, 14547, Beelitz, Deutschland.
| | - R Böthig
- BG Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland
| | - A Kaufmann
- Krankenhaus St. Franziskus, Viersener Str. 450, 41063, Mönchengladbach, Deutschland
| | - V Geng
- Manfred Sauer Stiftung, Neurott 20, 74931, Lobbach, Deutschland
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Chatzistamatiou K, Moysiadis T, Angelis E, Kaufmann A, Skenderi A, Jansen-Duerr P, Lekka I, Kilintzis V, Angelidou S, Katsiki E, Hagemann I, Tsertanidou A, Koch I, Boecher O, Soutschek E, Maglaveras N, Agorastos T. Diagnostic accuracy of high-risk HPV DNA genotyping for primary cervical cancer screening and triage of HPV-positive women, compared to cytology: preliminary results of the PIPAVIR study. Arch Gynecol Obstet 2017; 295:1247-1257. [DOI: 10.1007/s00404-017-4324-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 02/07/2017] [Indexed: 11/29/2022]
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Böthig R, Domurath B, Kaufmann A, Bremer J, Vance W, Kurze I. [Neuro-urological diagnosis and therapy of lower urinary tract dysfunction in patients with spinal cord injury : S2k Guideline of the German-Speaking Medical Society of Paraplegia (DMGP), AWMF register no. 179/001]. Urologe A 2017; 56:785-792. [PMID: 28314966 DOI: 10.1007/s00120-017-0354-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Most patients with spinal cord injury (SCI) suffer from neurogenic lower urinary tract dysfunction (NLUTD), bowel dysfunction and sexual dysfunction. If these remain untreated, severe medical complications and serious limitations (restrictions) in quality of life are imminent. OBJECTIVES In the long term, there are considerable differences in the treatment results of highly specialized centers versus other treatment facilities. MATERIALS AND METHODS Against this background, a consensus-based guideline, according to the AWMF (Association of the Scientific Medical Societies in Germany) criteria (S2k), was developed by the neuro-urology working group of the DMPG (German-Speaking Medical Society of Paraplegia). RESULTS The guideline defines the principles and objectives of the neuro-urological care of patients with SCI and discusses in detail the principles of diagnosis and therapy of NLUTD. The need for video-urodynamic studies as a basis for the classification of the NLUTD and as a foundation for the development of a treatment strategy is emphasized. Both conservative and surgical therapy options and their indications are explained in detail. Possible complications and their prevention in the long-term course of SCI are presented with a particular consideration of the specific features of urinary tract infections and autonomic dysreflexia. Finally, the principles of the provision of urological appliances are discussed. CONCLUSIONS The presented S2k guideline provides the current standards in the neuro-urological care of patients with NLUTD due to SCI. Their consistent implementation both in the acute and chronic phase as well as in the context of lifelong surveillance of SCI patients should prevent the impending complications of NLUTD.
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Affiliation(s)
- R Böthig
- Abt. Neuro-Urologie, Querschnittgelähmtenzentrum, BG-Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland.
| | - B Domurath
- Neurologische Rehabilitationsklinik, Neuro-Urologisches Zentrum, Kliniken Beelitz GmbH, Paracelsusring 6a, 14547, Beelitz-Heilstätten, Deutschland
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Viersener Str. 450, 41063, Mönchengladbach, Deutschland
| | - J Bremer
- Zentrum für Neuro-Rehabilitation, Querschnittgelähmten-Zentrum, BDH-Klinik Greifswald gGmbH, Karl-Liebknecht-Ring 26a, 17491, Greifswald, Deutschland
| | - W Vance
- Neurologische Rehabilitationsklinik, Neuro-Urologisches Zentrum, Kliniken Beelitz GmbH, Paracelsusring 6a, 14547, Beelitz-Heilstätten, Deutschland
| | - I Kurze
- Querschnittgelähmten-Zentrum, Klinik für Paraplegiologie und Neuro-Urologie, Zentralklinik Bad Berka, Robert-Koch-Allee 9, 99437, Bad Berka, Deutschland
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Bremer J, Böthig R, Domurath B, Kutzenberger J, Kaufmann A, Pretzer J, Klask JP, Geng V, Vance W, Kurze I. [Objective and subjective requirement of aids and appliances in patients with neurogenic lower urinary tract dysfunction : Multicenter study to determinate the daily necessity of urological aids and appliances]. Urologe A 2016; 55:1553-1563. [PMID: 27725995 DOI: 10.1007/s00120-016-0250-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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] [Indexed: 11/26/2022]
Abstract
BACKGROUND The provision of urological appliances for patients with neurogenic lower urinary tract dysfunction (NLUTD) is essential. Hitherto existing standard guidelines for the estimation of monthly material requirements are based solely on estimates. OBJECTIVE The goal of this work was to define the objective and subsequently subjective requirements for urological appliances on a scientifically validated basis. MATERIALS AND METHODS Data concerning bladder management and daily consumption of urological appliances for patients with NLUTD were collected through a standardized survey at six different centers in Germany during the period of October to December 2014 and statistically evaluated. RESULTS In all, 767 patient records were analyzed: 543 men and 221 woman (N/A = 3). The daily disposable catheter consumption of 577 patients who exclusively used intermittent catheterization was 5.13. Patients who used other means of bladder emptying (n = 31) in addition to catheterization consumed on average 3.17 catheters. The margin of deviation was larger for children. Of the 608 patients with intermittent catheterization, 94 (15.5 %) required additional paddings as absorbent aids (on average 2.29 paddings per day), 34 patients (5.6 %) additionally used pants (2.55 per day) and 46 patients (7.6 %) utilized condom catheters (3.81 per day) between catheterization. Among all surveyed patients, 126 (16.4 %) used paddings (5.03 per day) and 51 patients (6.6 %) pants (3.03 per day). Of all male respondents 82 (15.1 %) used condom catheters (2.80 urinary sheaths per day). CONCLUSION Applying twice the standard deviation of the mean as a measure of assessing the objective requirement of urological appliances and aids for adult patients with NLUTD allows the following daily thresholds to be defined: 1-9 disposable catheters, 0-7 urinary sheaths, 1-9 paddings and 0-7 pants. These thresholds can serve as a basis for estimating the subjective need. They allow for a scientifically validated benchmark for an economically feasible and patient-tailored supply with urological aids and appliances. Individually required appliances and aids have to be recognized. Verifiable quality standards need to be developed.
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Affiliation(s)
- J Bremer
- Neurologisches Rehabilitationszentrum und Querschnittgelähmtenzentrum, BDH-Klinik Greifswald GmbH, Karl-Liebknecht-Ring 26a, 17491, Greifswald, Deutschland
| | - R Böthig
- Abt. Neuro-Urologie, Querschnittgelähmtenzentrum, BG-Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland.
| | - B Domurath
- Neurologische Rehabilitationsklinik, Neuro-Urologisches Zentrum, Kliniken Beelitz GmbH, Paracelsusring 6a, 14547, Beelitz-Heilstätten, Deutschland
| | - J Kutzenberger
- Abteilung für Neuro-Urologie, Werner Wicker KG, Im Kreuzfeld 4, 34537, Bad Wildungen-Reinhardshausen, Deutschland
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Viersener Straße 450, 41063, Mönchengladbach, Deutschland
| | - J Pretzer
- Klinik für Urologie und Neuro-Urologie, Unfallkrankenhaus Berlin, Warener Str. 7, 12683, Berlin, Deutschland
| | - J P Klask
- Urologie, BG Klinikum Duisburg, Großenbaumer Allee 250, 47249, Duisburg, Deutschland
| | - V Geng
- Manfred-Sauer-Stiftung, Neurott 20, 74931, Lobbach, Deutschland
| | - W Vance
- Neurologische Rehabilitationsklinik, Neuro-Urologisches Zentrum, Kliniken Beelitz GmbH, Paracelsusring 6a, 14547, Beelitz-Heilstätten, Deutschland
| | - I Kurze
- Querschnittgelähmten-Zentrum, Klinik für Paraplegiologie und Neuro-Urologie, Zentralklinik Bad Berka GmbH, Robert-Koch-Allee 9, 99437, Bad Berka, Deutschland
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Abstract
The syndrome of overactive bladder (OAB) with the symptoms of frequency, urgency and nocturia is often seen. After the diagnosis has been made by careful exclusion of other conditions, there are different symptomatic treatment strategies available. These include drug treatment as well as minimally invasive local surgical treatments and treatments which intervene with the control of the bladder by modulating central nervous areas. Alternative methods such as acupuncture may help in individual cases; the placebo effect is high and there is a lack of controlled studies.
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Affiliation(s)
- A. Kaufmann
- Albert Kaufmann, Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Mönchengladbach
| | - R. Kirschner-Hermanns
- Urologische Klinik, Zentrum für Kontinenz und Neuro-Urologie, Rheinische Friedrich-Wilhelms Universität und neurologisches Rehabilitationszentrum Godeshöhe, Universitätsklinikum Bonn
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Scheerer C, Bauer P, Chiantera V, Sehouli J, Kaufmann A, Mechsner S. Characterization of endometriosis-associated immune cell infiltrates (EMaICI). Arch Gynecol Obstet 2016; 294:657-64. [DOI: 10.1007/s00404-016-4142-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 06/24/2016] [Indexed: 11/25/2022]
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Kaufmann A, Walker S. Extension of the Q Orbitrap intrascan dynamic range by using a dedicated customized scan. Rapid Commun Mass Spectrom 2016; 30:1087-1095. [PMID: 27003046 DOI: 10.1002/rcm.7530] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 02/01/2016] [Accepted: 02/02/2016] [Indexed: 06/05/2023]
Abstract
RATIONALE The intrascan dynamic range of modern Orbitrap instrumentation is specified to reach 1:5000, while the interscan dynamic range is significantly larger due to the utilization of the automatic gain control feature. There are some applications (e.g. residue analysis in complex matrices, metabolomics or structural elucidation) where a wider intrascan dynamic range is desirable. METHODS The Application Programming Interface (API) of the Q Exactive Orbitrap mass spectrometer has been used to program a customized scan in order to cover a larger intrascan dynamic range. Different approaches were used, which were all based on the variation of the isolation time of low-abundance versus high-abundance mass range segments. The differently attenuated mass range segments isolated by the quadrupole were sequentially forwarded to the C-trap. Finally, the accumulated mass segments were measured within the Orbitrap analyzer. RESULTS The spectra obtained by the customized scans show an enlarged dynamic range. This has been demonstrated by monitoring the higher isotope mass peaks (first and second isotope) of a low intensity analyte. Furthermore, a practical application (veterinary drugs in bovine kidney) has been investigated with the proposed customized scan. Analytes eluting within the retention time region of very intense matrix peaks (e.g. peptides) showed improved detectability when utilizing the customized scan. CONCLUSIONS The extension of the intrascan dynamic range by a customized scan is helpful when analyzing residues which happen to elute together with a dominating matrix peak or within a high ion abundance region (e.g. dead volume). Furthermore, this feature helps in the process of determining the elemental composition of compounds by permitting the investigation of low-abundance ions (e.g. belonging to the isotopic fine structure of the investigated compound).
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority, Kontales Labor Zürich, Fehrenstrasse 15, 8032, Zürich, Switzerland
| | - S Walker
- Official Food Control Authority, Kontales Labor Zürich, Fehrenstrasse 15, 8032, Zürich, Switzerland
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Kaufmann A, Walker S, Mol G. Product ion isotopologue pattern: A tool to improve the reliability of elemental composition elucidations of unknown compounds in complex matrices. Rapid Commun Mass Spectrom 2016; 30:791-799. [PMID: 26969920 DOI: 10.1002/rcm.7476] [Citation(s) in RCA: 4] [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: 08/07/2015] [Revised: 10/19/2015] [Accepted: 12/06/2015] [Indexed: 06/05/2023]
Abstract
RATIONALE Elucidation of the elemental compositions of unknown compounds (e.g., in metabolomics) generally relies on the availability of accurate masses and isotopic ratios. This study focuses on the information provided by the abundance ratio within a product ion pair (monoisotopic versus the first isotopic peak) when isolating and fragmenting the first isotopic ion (first isotopic mass spectrum) of the precursor. METHODS This process relies on the capability of the quadrupole within the Q Orbitrap instrument to isolate a very narrow mass window. Selecting only the first isotopic peak (first isotopic mass spectrum) leads to the observation of a unique product ion pair. The lighter ion within such an isotopologue pair is monoisotopic, while the heavier ion contains a single carbon isotope. The observed abundance ratio is governed by the percentage of carbon atoms lost during the fragmentation and can be described by a hypergeometric distribution. RESULTS The observed carbon isotopologue abundance ratio (product ion isotopologue pattern) gives reliable information regarding the percentage of carbon atoms lost in the fragmentation process. It therefore facilitates the elucidation of the involved precursor and product ions. Unlike conventional isotopic abundances, the product ion isotopologue pattern is hardly affected by isobaric interferences. Furthermore, the appearance of these pairs greatly aids in cleaning up a 'matrix-contaminated' product ion spectrum. CONCLUSIONS The product ion isotopologue pattern is a valuable tool for structural elucidation. It increases confidence in results and permits structural elucidations for heavier ions. This tool is also very useful in elucidating the elemental composition of product ions. Such information is highly valued in the field of multi-residue analysis, where the accurate mass of product ions is required for the confirmation process. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority, Fehrenstrasse 15, 8032, Zürich, Switzerland
| | - S Walker
- Official Food Control Authority, Fehrenstrasse 15, 8032, Zürich, Switzerland
| | - G Mol
- Official Food Control Authority, Fehrenstrasse 15, 8032, Zürich, Switzerland
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Wolff S, Groseth A, Meyer B, Jackson D, Strecker T, Kaufmann A, Becker S. The New World arenavirus Tacaribe virus induces caspase-dependent apoptosis in infected cells. J Gen Virol 2016; 97:855-866. [PMID: 26769540 DOI: 10.1099/jgv.0.000403] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The Arenaviridae is a diverse and growing family of viruses that already includes more than 25 distinct species. While some of these viruses have a significant impact on public health, others appear to be non-pathogenic. At present little is known about the host cell responses to infection with different arenaviruses, particularly those found in the New World; however, apoptosis is known to play an important role in controlling infection of many viruses. Here we show that infection with Tacaribe virus (TCRV), which is widely considered the prototype for non-pathogenic arenaviruses, leads to stronger induction of apoptosis than does infection with its human-pathogenic relative Junín virus. TCRV-induced apoptosis occurred in several cell types during late stages of infection and was shown to be caspase-dependent, involving the activation of caspases 3, 7, 8 and 9. Further, UV-inactivated TCRV did not induce apoptosis, indicating that the activation of this process is dependent on active viral replication/transcription. Interestingly, when apoptosis was inhibited, growth of TCRV was not enhanced, indicating that apoptosis does not have a direct negative effect on TCRV infection in vitro. Taken together, our data identify and characterize an important virus-host cell interaction of the prototypic, non-pathogenic arenavirus TCRV, which provides important insight into the growing field of arenavirus research aimed at better understanding the diversity in responses to different arenavirus infections and their functional consequences.
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Affiliation(s)
- Svenja Wolff
- Institut für Virologie, Philipps-Universität Marburg, Hans-Meerwein Str. 2, 35043, Marburg, Germany.,German Center for Infection Research (DZIF), partner site Gießen-Marburg-Langen, Hans-Meerwein Str. 2, 35043, Marburg, Germany
| | - Allison Groseth
- Institut für Virologie, Philipps-Universität Marburg, Hans-Meerwein Str. 2, 35043, Marburg, Germany
| | - Bjoern Meyer
- University of St Andrews, Biomedical Sciences Research Complex, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - David Jackson
- University of St Andrews, Biomedical Sciences Research Complex, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - Thomas Strecker
- Institut für Virologie, Philipps-Universität Marburg, Hans-Meerwein Str. 2, 35043, Marburg, Germany
| | - Andreas Kaufmann
- Institut für Immunologie, Philipps-Universität Marburg, Hans-Meerwein Str. 2, 35043, Marburg, Germany
| | - Stephan Becker
- German Center for Infection Research (DZIF), partner site Gießen-Marburg-Langen, Hans-Meerwein Str. 2, 35043, Marburg, Germany.,Institut für Virologie, Philipps-Universität Marburg, Hans-Meerwein Str. 2, 35043, Marburg, Germany
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Hecker A, Küllmar M, Wilker S, Richter K, Zakrzewicz A, Atanasova S, Mathes V, Timm T, Lerner S, Klein J, Kaufmann A, Bauer S, Padberg W, Kummer W, Janciauskiene S, Fronius M, Schweda EKH, Lochnit G, Grau V. Phosphocholine-Modified Macromolecules and Canonical Nicotinic Agonists Inhibit ATP-Induced IL-1β Release. J Immunol 2015. [PMID: 26202987 DOI: 10.4049/jimmunol.1400974] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
IL-1β is a potent proinflammatory cytokine of the innate immune system that is involved in host defense against infection. However, increased production of IL-1β plays a pathogenic role in various inflammatory diseases, such as rheumatoid arthritis, gout, sepsis, stroke, and transplant rejection. To prevent detrimental collateral damage, IL-1β release is tightly controlled and typically requires two consecutive danger signals. LPS from Gram-negative bacteria is a prototypical first signal inducing pro-IL-1β synthesis, whereas extracellular ATP is a typical second signal sensed by the ATP receptor P2X7 that triggers activation of the NLRP3-containing inflammasome, proteolytic cleavage of pro-IL-1β by caspase-1, and release of mature IL-1β. Mechanisms controlling IL-1β release, even in the presence of both danger signals, are needed to protect from collateral damage and are of therapeutic interest. In this article, we show that acetylcholine, choline, phosphocholine, phosphocholine-modified LPS from Haemophilus influenzae, and phosphocholine-modified protein efficiently inhibit ATP-mediated IL-1β release in human and rat monocytes via nicotinic acetylcholine receptors containing subunits α7, α9, and/or α10. Of note, we identify receptors for phosphocholine-modified macromolecules that are synthesized by microbes and eukaryotic parasites and are well-known modulators of the immune system. Our data suggest that an endogenous anti-inflammatory cholinergic control mechanism effectively controls ATP-mediated release of IL-1β and that the same mechanism is used by symbionts and misused by parasites to evade innate immune responses of the host.
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Affiliation(s)
- Andreas Hecker
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany
| | - Mira Küllmar
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany
| | - Sigrid Wilker
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany
| | - Katrin Richter
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany; Institute of Animal Physiology, Justus-Liebig-University Giessen, D-35392 Giessen, Germany
| | - Anna Zakrzewicz
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany
| | - Srebrena Atanasova
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany
| | - Verena Mathes
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany
| | - Thomas Timm
- Protein Analytics, Institute of Biochemistry, Justus-Liebig-University Giessen, D-35392 Giessen, Germany
| | - Sabrina Lerner
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany
| | - Jochen Klein
- Department of Pharmacology, Goethe University College of Pharmacy, D-60438 Frankfurt, Germany
| | - Andreas Kaufmann
- Institute for Immunology, Philipps-University Marburg, D-35043 Marburg, Germany
| | - Stefan Bauer
- Institute for Immunology, Philipps-University Marburg, D-35043 Marburg, Germany
| | - Winfried Padberg
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany
| | - Wolfgang Kummer
- Institute of Anatomy and Cell Biology, Justus-Liebig-University Giessen, D-35392 Giessen, Germany
| | - Sabina Janciauskiene
- Department of Respiratory Medicine, Hannover Medical School, D-30625 Hannover, Germany
| | - Martin Fronius
- Institute of Animal Physiology, Justus-Liebig-University Giessen, D-35392 Giessen, Germany; Department of Physiology, University of Otago, Dunedin 9054, New Zealand; and
| | - Elke K H Schweda
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, S-58183 Linköping, Sweden
| | - Günter Lochnit
- Protein Analytics, Institute of Biochemistry, Justus-Liebig-University Giessen, D-35392 Giessen, Germany
| | - Veronika Grau
- Laboratory of Experimental Surgery, Department of General and Thoracic Surgery, Justus-Liebig-University Giessen, D-35385 Giessen, Germany;
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Janko M, Spiegl B, Kaufmann A, Lucyshyn T, Holzer C. Weld line improvement of short fiber reinforced thermoplastics with a movable flow obstacle. J Appl Polym Sci 2015. [DOI: 10.1002/app.42025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marian Janko
- Department of Polymer Engineering and Science; Chair of Polymer Processing, Montanuniversitaet Leoben; 8700 Leoben Austria
| | | | | | - Thomas Lucyshyn
- Department of Polymer Engineering and Science; Chair of Polymer Processing, Montanuniversitaet Leoben; 8700 Leoben Austria
| | - Clemens Holzer
- Department of Polymer Engineering and Science; Chair of Polymer Processing, Montanuniversitaet Leoben; 8700 Leoben Austria
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Jung S, von Thülen T, Laukemper V, Pigisch S, Hangel D, Wagner H, Kaufmann A, Bauer S. A single naturally occurring 2'-O-methylation converts a TLR7- and TLR8-activating RNA into a TLR8-specific ligand. PLoS One 2015; 10:e0120498. [PMID: 25785446 PMCID: PMC4364935 DOI: 10.1371/journal.pone.0120498] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 09/26/2014] [Accepted: 01/23/2015] [Indexed: 12/20/2022] Open
Abstract
TLR7 and TLR8 recognize RNA from pathogens and lead to subsequent immune stimulation. Here we demonstrate that a single naturally occurring 2’-O-methylation within a synthetic 18s rRNA derived RNA sequence prevents IFN-α production, however secretion of proinflammatory cytokines such as IL-6 is not impaired. By analysing TLR-deficient plasmacytoid dendritic cells and performing HEK293 genetic complementation assays we could demonstrate that the single 2’-O-methylation containing RNA still activated TLR8 but not TLR7. Therefore this specific 2’-O-ribose methylation in rRNA converts a TLR7 / TLR8 ligand to an exclusively TLR8-specific ligand. Interestingly, other modifications at this position such as 2’-O-deoxy or 2’-fluoro had no strong modulating effect on TLR7 or TLR8 activation suggesting an important role of 2’-O-methylation for shaping differential TLR7 or TLR8 activation.
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Affiliation(s)
- Stephanie Jung
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Marburg, Germany
| | - Tina von Thülen
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Marburg, Germany
| | - Viktoria Laukemper
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Marburg, Germany
| | - Stephanie Pigisch
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, München, Germany
| | - Doris Hangel
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, München, Germany
| | - Hermann Wagner
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Technische Universität München, München, Germany
| | - Andreas Kaufmann
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Marburg, Germany
| | - Stefan Bauer
- Institut für Immunologie, Philipps-Universität Marburg, BMFZ, Marburg, Germany
- * E-mail:
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Tinhofer I, Jöhrens K, Keilholz U, Kaufmann A, Lehmann A, Weichert W, Stenzinger A, Stromberger C, Klinghammer K, Becker ET, Dommerich S, Stölzel K, Hofmann V, Hildebrandt B, Moser L, Ervens J, Böttcher A, Albers A, Stabenow R, Reinecke A, Budach V, Hoffmeister B, Raguse J. Contribution of human papilloma virus to the incidence of squamous cell carcinoma of the head and neck in a European population with high smoking prevalence. Eur J Cancer 2015; 51:514-521. [DOI: 10.1016/j.ejca.2014.12.018] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 12/20/2014] [Indexed: 11/24/2022]
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Determination of nitrofuran and chloramphenicol residues by high resolution mass spectrometry versus tandem quadrupole mass spectrometry. Anal Chim Acta 2015; 862:41-52. [DOI: 10.1016/j.aca.2014.12.036] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 12/16/2014] [Accepted: 12/17/2014] [Indexed: 10/24/2022]
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Rämö P, Drewek A, Arrieumerlou C, Beerenwinkel N, Ben-Tekaya H, Cardel B, Casanova A, Conde-Alvarez R, Cossart P, Csúcs G, Eicher S, Emmenlauer M, Greber U, Hardt WD, Helenius A, Kasper C, Kaufmann A, Kreibich S, Kühbacher A, Kunszt P, Low SH, Mercer J, Mudrak D, Muntwiler S, Pelkmans L, Pizarro-Cerdá J, Podvinec M, Pujadas E, Rinn B, Rouilly V, Schmich F, Siebourg-Polster J, Snijder B, Stebler M, Studer G, Szczurek E, Truttmann M, von Mering C, Vonderheit A, Yakimovich A, Bühlmann P, Dehio C. Simultaneous analysis of large-scale RNAi screens for pathogen entry. BMC Genomics 2014; 15:1162. [PMID: 25534632 PMCID: PMC4326433 DOI: 10.1186/1471-2164-15-1162] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [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: 07/11/2014] [Accepted: 12/12/2014] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Large-scale RNAi screening has become an important technology for identifying genes involved in biological processes of interest. However, the quality of large-scale RNAi screening is often deteriorated by off-targets effects. In order to find statistically significant effector genes for pathogen entry, we systematically analyzed entry pathways in human host cells for eight pathogens using image-based kinome-wide siRNA screens with siRNAs from three vendors. We propose a Parallel Mixed Model (PMM) approach that simultaneously analyzes several non-identical screens performed with the same RNAi libraries. RESULTS We show that PMM gains statistical power for hit detection due to parallel screening. PMM allows incorporating siRNA weights that can be assigned according to available information on RNAi quality. Moreover, PMM is able to estimate a sharedness score that can be used to focus follow-up efforts on generic or specific gene regulators. By fitting a PMM model to our data, we found several novel hit genes for most of the pathogens studied. CONCLUSIONS Our results show parallel RNAi screening can improve the results of individual screens. This is currently particularly interesting when large-scale parallel datasets are becoming more and more publicly available. Our comprehensive siRNA dataset provides a public, freely available resource for further statistical and biological analyses in the high-content, high-throughput siRNA screening field.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Christoph Dehio
- Focal Area Infection Biology, Biozentrum, University of Basel, Klingelberstrasse 70, CH-4056 Basel, Switzerland.
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Gross G, Becker N, Brockmeyer N, Esser S, Freitag U, Gebhardt M, Gissmann L, Hillemanns P, Grundhewer H, Ikenberg H, Jessen H, Kaufmann A, Klug S, Klussmann J, Nast A, Pathirana D, Petry K, Pfister H, Röllinghof U, Schneede P, Schneider A, Selka E, Singer S, Smola S, Sporbeck B, von Knebel Doeberitz M, Wutzler P. Impfprävention HPV-assoziierter Neoplasien. Laryngorhinootologie 2014; 93:848-56. [DOI: 10.1055/s-0034-1382013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- G. Gross
- Klinik und Poliklinik für Dermatologie und Venerologie, Universitätsmedizin, Universität Rostock, Rostock
| | - N. Becker
- Deutsches Krebsforschungszentrum (DKFZ), Epidemiologie von Krebserkrankungen (C020), Heidelberg
| | - N. Brockmeyer
- Klinik für Dermatologie und Allergologie der Ruhr-Universität, Bochum
| | - S. Esser
- Klinik für Dermatologie und Venerologie, Universitätsklinikum Essen, Essen
| | | | | | - L. Gissmann
- Deutsches Krebsforschungszentrum (DKFZ), FS Infektion und Krebs, Heidelberg
| | - P. Hillemanns
- Medizinische Hochschule Hannover (MHH), Frauenklinik, Abt. I für Frauenheilkunde und Geburtshilfe, Hannover
| | - H. Grundhewer
- Ausschuss Prävention des Berufsverbandes der Kinder- und Jugendärzte (BVKJ), Berlin
| | - H. Ikenberg
- MVZ für Zytologie und Molekularbiologie (CytoMol), Frankfurt/M
| | | | - A. Kaufmann
- Gynäkologische Tumorimmunologie, Gynäkologie mit Hochschulambulanz, Charité – Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin
| | - S. Klug
- Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden
| | - J. Klussmann
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum der Universität Gießen, Gießen
| | - A. Nast
- Division of Evidence Based Medicine (dEBM), Klinik für Dermatologie, Allergologie und Venerologie, Charité – Universitätsmedizin Berlin, Campus Mitte, Berlin
| | - D. Pathirana
- Division of Evidence Based Medicine (dEBM), Klinik für Dermatologie, Allergologie und Venerologie, Charité – Universitätsmedizin Berlin, Campus Mitte, Berlin
| | - K. Petry
- Klinikum Wolfsburg, Abteilung Gynäkologische Onkologie, Wolfsburg
| | - H. Pfister
- Institut für Virologie der Universität zu Köln
| | | | - P. Schneede
- Klinikum Memmingen, Klinik für Urologie, Memmingen
| | - A. Schneider
- Klinik und Poliklinik für Gynäkologie, Charité – Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin
| | - E. Selka
- VulvaKarzinom-SHG e. V., Wilhelmshaven
| | - S. Singer
- Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Institut für Medizinische Biometrie, Epidemiologie und Informatik, Abt. Epidemiologie und Versorgungsforschung, Mainz
| | - S. Smola
- Institut für Virologie, Institut für Infektionsmedizin, Universität des Saarlandes, Homburg/Saar
| | - B. Sporbeck
- Division of Evidence Based Medicine (dEBM), Klinik für Dermatologie, Allergologie und Venerologie, Charité – Universitätsmedizin Berlin, Campus Mitte, Berlin
| | - M. von Knebel Doeberitz
- Abteilung für Molekulare Pathologie, Pathologisches Institut des Universitätsklinikum Heidelberg, Heidelberg
| | - P. Wutzler
- Universitätsklinikum Jena (Friedrich-Schiller-Universität), Institut für Virologie und Antivirale Therapie, Beutenberg Campus, Jena
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Reliability of veterinary drug residue confirmation: high resolution mass spectrometry versus tandem mass spectrometry. Anal Chim Acta 2014; 856:54-67. [PMID: 25542358 DOI: 10.1016/j.aca.2014.11.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [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: 08/19/2014] [Revised: 10/10/2014] [Accepted: 11/25/2014] [Indexed: 11/19/2022]
Abstract
Confirmation of suspected residues has been a long time domain of tandem triple quadrupole mass spectrometry (QqQ). The currently most widely used confirmation strategy relies on the use of two selected reaction monitoring signals (SRM). The details of this confirmation procedure are described in detail in the Commission Decision 93/256/EC (CD). On the other hand, high resolution mass spectrometry (HRMS) is nowadays increasingly used for trace analysis. Yet its utility for confirmatory purposes has not been well explored and utilized, since established confirmation strategies like the CD do not yet include rules for modern HRMS technologies. It is the focus of this paper to evaluate the likelihood of false positive and false negative confirmation results, when using a variety of HRMS based measurement modes as compared to conventional QqQ mass spectrometry. The experimental strategy relies on the chromatographic separation of a complex blank sample (bovine liver extract) and the subsequent monitoring of a number of dummy transitions respectively dummy accurate masses. The term "dummy" refers to precursor and derived product ions (based on a realistic neutral loss) whose elemental compositions (CxHyNzOdCle) were produced by a random number generator. Monitoring a large number of such hypothetical SRM's, or accurate masses inevitably produces a number of mass traces containing chromatographic peaks (false detects) which are caused by eluting matrix compounds. The number and intensity of these peaks were recorded and standardized to permit a comparison among the two employed MS technologies. QqQ performance (compounds which happen to produce a response in two SRM traces at identical retention time) was compared with a number of different HRMS(1) and HRMS(2) detection based modes. A HRMS confirmation criterion based on two full scans (an unfragmented and an all ion fragmented) was proposed. Compared to the CD criteria, a significantly lower probability of false positive and false negative findings is obtained by utilizing this criterion.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland.
| | - P Butcher
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - K Maden
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - S Walker
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - M Widmer
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
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Schwarz T, Spaczynski M, Kaufmann A, Wysocki J, Gałaj A, Schulze K, Suryakiran P, Thomas F, Descamps D. Persistence of immune responses to the HPV-16/18 AS04-adjuvanted vaccine in women aged 15-55 years and first-time modelling of antibody responses in mature women: results from an open-label 6-year follow-up study. BJOG 2014; 122:107-18. [PMID: 25208608 PMCID: PMC4489326 DOI: 10.1111/1471-0528.13070] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [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] [Accepted: 07/06/2014] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Evaluation of the long-term HPV-16/18 AS04-adjuvanted vaccine immunogenicity persistence in women. DESIGN Multicentre, open-label, long-term follow-up (NCT00947115) of a primary phase-III study (NCT00196937). SETTING Six centres in Germany and Poland. POPULATION 488 healthy women (aged 15-55 years, age-stratified into groups: 15-25, 26-45, and 46-55 years) who received three vaccine doses in the primary study. METHODS Immune responses were evaluated in serum and cervicovaginal secretion (CVS) samples 6 years after dose 1. Anti-HPV-16/18 geometric mean titres (GMTs) were measured by enzyme-linked immunosorbent assay (ELISA), and were used to fit the modified power-law and piecewise models, predicting long-term immunogenicity. Serious adverse events (SAEs) were recorded. MAIN OUTCOME MEASURES Anti-HPV-16/18 seropositivity rates and GMTs 6 years after dose 1. RESULTS At 6 years after dose 1, all women were seropositive for anti-HPV-16 and ≥97% were seropositive for anti-HPV-18 antibodies. GMTs ranged from 277.7 to 1344.6 EU/ml, and from 97.6 to 438.2 EU/ml, for anti-HPV-16 and anti-HPV-18, respectively. In all age groups, GMTs were higher (anti-HPV-16, 9.3-45.1-fold; anti-HPV-18, 4.3-19.4-fold) than levels associated with natural infection (29.8 EU/ml). A strong correlation between serum and CVS anti-HPV-16/18 levels was observed, with correlation coefficients of 0.81-0.96 (anti-HPV-16) and 0.69-0.84 (anti-HPV-18). Exploratory modelling based on the 6-year data predicted vaccine-induced anti-HPV-16/18 levels above natural infection levels for at least 20 years, except for anti-HPV-18 in the older age group (piecewise model). One vaccine-related and two fatal SAEs were reported. CONCLUSIONS At 6 years after vaccination, immune responses induced by the HPV-16/18 AS04-adjuvanted vaccine were sustained in all age groups.
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Affiliation(s)
- T Schwarz
- Central Laboratory and Vaccination Centre, Stiftung Juliusspital, Würzburg, Germany
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Karsenty G, Baverstock R, Carlson K, Diaz DC, Cruz F, Dmochowski R, Fulford S, Giannantoni A, Heesakkers J, Kaufmann A, Peyrat L, Thavaseelan J, Dasgupta P. Technical aspects of botulinum toxin type A injection in the bladder to treat urinary incontinence: reviewing the procedure. Int J Clin Pract 2014; 68:731-42. [PMID: 24472109 DOI: 10.1111/ijcp.12360] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
AIMS Standardise the injection technique with botulinum toxin type A (BoNT A) in the bladder of patients with overactive bladder (OAB) [idiopathic overactive bladder (iOAB) or neurogenic overactive bladder (nOAB) with urinary incontinence], using a literature review and a survey of an International expert panel. METHODS PubMed literature searches of BoNT A in adults with iOAB/nOAB together with a survey of 13 experts from 10 countries. RESULTS Data from 21 articles and completed questionnaires were collated. The procedure can be carried out in an out-/inpatient setting. Dose used in clinical studies vs. clinical practice was 300 and 200 U for nOAB and 200 and 100 U for iOAB. Recent studies have also demonstrated that there are no clinically relevant benefits between 100 and 150 U in iOAB or between 300 and 200 U in nOAB, though adverse effects are increased with higher doses. Usually, 30 sites for nOAB (range: 6.7-10 U/ml) and 20-30 sites for iOAB (range: 5-10 U/ml) are injected in clinical studies vs. 20-30 sites of 1 ml/injection for 200 U in nOAB and 10-20 sites of 0.5-1 ml/injection for 100 U in iOAB in clinical practice. BoNT A is usually injected directly into the detrusor, sparing the trigone. Flexible or rigid cystoscopes are used. The needle should be typically 22-27 gauge and 4 mm in length and should have a stopper to avoid any leakage or perforation of the bladder wall while ensuring a targeted injection. CONCLUSION Based on the literature and survey analysis, recommendations are proposed for the standardisation of the injection procedure.
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Affiliation(s)
- G Karsenty
- Urology and Kidney Transplantation, Aix Marseille University, Marseille, France
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Patterson MJ, Sutton RE, Forrest I, Sharrock R, Lane M, Kaufmann A, O'Donnell R, Edmondson RJ, Wilson BT, Curtin NJ. Assessing the function of homologous recombination DNA repair in malignant pleural effusion (MPE) samples. Br J Cancer 2014; 111:94-100. [PMID: 24867690 PMCID: PMC4090730 DOI: 10.1038/bjc.2014.261] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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: 01/28/2014] [Revised: 04/20/2014] [Accepted: 04/23/2014] [Indexed: 12/02/2022] Open
Abstract
Background: Patients with malignant pleural effusions (MPEs) generally have advanced disease with poor survival and few therapeutic options. Cells within MPEs may be used to stratify patients for targeted therapy. Targeted therapy with poly(ADP ribose) polymerase inhibitors (PARPi) depends on identifying homologous recombination DNA repair (HRR)-defective cancer cells. We aimed to determine the feasibility of assaying HRR status in MPE cells. Methods: A total of 15 MPE samples were collected from consenting patients with non-small-cell lung cancer (NSCLC), mesothelioma and ovarian and breast cancer. Primary cultures were confirmed as epithelial by pancytokeratin, and HRR status was determined by the detection of γH2AX and RAD51 foci following a 24-h exposure to rucaparib, by immunofluorescence microscopy. Massively parallel next-generation sequencing of DNA repair genes was performed on cultured MPE cells. Results: From 15 MPE samples, 13 cultures were successfully established, with HRR function successfully determined in 12 cultures. Four samples – three NSCLC and one mesothelioma – were HRR defective and eight samples – one NSCLC, one mesothelioma, one sarcomatoid, one breast and four ovarian cancers – were HRR functional. No mutations in DNA repair genes were associated with HRR status, but there was probable loss of heterozygosity of FANCG, RPA1 and PARP1. Conclusions: HRR function can be successfully detected in MPE cells demonstrating the potential to stratify patients for targeted therapy with PARPi.
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Affiliation(s)
- M J Patterson
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - R E Sutton
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - I Forrest
- Royal Victoria Infirmary, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 4LP, UK
| | - R Sharrock
- Royal Victoria Infirmary, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 4LP, UK
| | - M Lane
- Royal Victoria Infirmary, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 4LP, UK
| | - A Kaufmann
- 1] Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK [2] The Northern Gynaecological Oncology Centre, Queen Elizabeth Hospital, Gateshead Foundation Trust, Gateshead NE9 6SX, UK
| | - R O'Donnell
- 1] Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK [2] The Northern Gynaecological Oncology Centre, Queen Elizabeth Hospital, Gateshead Foundation Trust, Gateshead NE9 6SX, UK
| | - R J Edmondson
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - B T Wilson
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - N J Curtin
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Multi-residue quantification of veterinary drugs in milk with a novel extraction and cleanup technique: Salting out supported liquid extraction (SOSLE). Anal Chim Acta 2014; 820:56-68. [DOI: 10.1016/j.aca.2014.02.038] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 02/20/2014] [Accepted: 02/22/2014] [Indexed: 11/26/2022]
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