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John A, Krämer M, Lehmann M, Kunz HH, Aarabi F, Alseekh S, Fernie A, Sommer F, Schroda M, Zimmer D, Mühlhaus T, Peisker H, Gutbrod K, Dörmann P, Neunzig J, Philippar K, Neuhaus HE. Degradation of FATTY ACID EXPORT PROTEIN1 by RHOMBOID-LIKE PROTEASE11 contributes to cold tolerance in Arabidopsis. Plant Cell 2024; 36:1937-1962. [PMID: 38242838 DOI: 10.1093/plcell/koae011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/21/2024]
Abstract
Plants need to acclimate to different stresses to optimize growth under unfavorable conditions. In Arabidopsis (Arabidopsis thaliana), the abundance of the chloroplast envelope protein FATTY ACID EXPORT PROTEIN1 (FAX1) decreases after the onset of low temperatures. However, how FAX1 degradation occurs and whether altered FAX1 abundance contributes to cold tolerance in plants remains unclear. The rapid cold-induced increase in RHOMBOID-LIKE PROTEASE11 (RBL11) transcript levels, the physical interaction of RBL11 with FAX1, the specific FAX1 degradation after RBL11 expression, and the absence of cold-induced FAX1 degradation in rbl11 loss-of-function mutants suggest that this enzyme is responsible for FAX1 degradation. Proteomic analyses showed that rbl11 mutants have higher levels of FAX1 and other proteins involved in membrane lipid homeostasis, suggesting that RBL11 is a key element in the remodeling of membrane properties during cold conditions. Consequently, in the cold, rbl11 mutants show a shift in lipid biosynthesis toward the eukaryotic pathway, which coincides with impaired cold tolerance. To test whether cold sensitivity is due to increased FAX1 levels, we analyzed FAX1 overexpressors. The rbl11 mutants and FAX1 overexpressor lines show superimposable phenotypic defects upon exposure to cold temperatures. Our re-sults show that the cold-induced degradation of FAX1 by RBL11 is critical for Arabidop-sis to survive cold and freezing periods.
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Affiliation(s)
- Annalisa John
- Plant Physiology, University of Kaiserslautern, Kaiserslautern D-67653, Germany
| | - Moritz Krämer
- Plant Biochemistry, Faculty of Biology, Ludwig-Maximilians-Universität Munich, Planegg-Martinsried 82152, Germany
| | - Martin Lehmann
- Plant Biochemistry, Faculty of Biology, Ludwig-Maximilians-Universität Munich, Planegg-Martinsried 82152, Germany
| | - Hans-Henning Kunz
- Plant Biochemistry, Faculty of Biology, Ludwig-Maximilians-Universität Munich, Planegg-Martinsried 82152, Germany
| | - Fayezeh Aarabi
- Max Planck Institut for Molecular Plant Physiology, Central Metabolism, Potsdam D-14476, Germany
| | - Saleh Alseekh
- Max Planck Institut for Molecular Plant Physiology, Central Metabolism, Potsdam D-14476, Germany
| | - Alisdair Fernie
- Max Planck Institut for Molecular Plant Physiology, Central Metabolism, Potsdam D-14476, Germany
| | - Frederik Sommer
- Molecular Biotechnology and Systems Biology, University of Kaiserslautern, Kaiserslautern D-67653, Germany
| | - Michael Schroda
- Molecular Biotechnology and Systems Biology, University of Kaiserslautern, Kaiserslautern D-67653, Germany
| | - David Zimmer
- Computational Systems Biology, University of Kaiserslautern, Kaiserslautern D-67653, Germany
| | - Timo Mühlhaus
- Computational Systems Biology, University of Kaiserslautern, Kaiserslautern D-67653, Germany
| | - Helga Peisker
- Institute for Molecular Physiology and Biotechnology of Plants, IMBIO, University of Bonn, Bonn D-53115, Germany
| | - Katharina Gutbrod
- Institute for Molecular Physiology and Biotechnology of Plants, IMBIO, University of Bonn, Bonn D-53115, Germany
| | - Peter Dörmann
- Institute for Molecular Physiology and Biotechnology of Plants, IMBIO, University of Bonn, Bonn D-53115, Germany
| | - Jens Neunzig
- Plant Biology, Center for Human and Molecular Biology (ZHMB), Saarland University, Saarbrücken D-66123, Germany
| | - Katrin Philippar
- Plant Biology, Center for Human and Molecular Biology (ZHMB), Saarland University, Saarbrücken D-66123, Germany
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Zhu Y, Akkaya KC, Ruta J, Yokoyama N, Wang C, Ruwolt M, Lima DB, Lehmann M, Liu F. Cross-link assisted spatial proteomics to map sub-organelle proteomes and membrane protein topologies. Nat Commun 2024; 15:3290. [PMID: 38632225 PMCID: PMC11024108 DOI: 10.1038/s41467-024-47569-x] [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: 03/04/2023] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
The functions of cellular organelles and sub-compartments depend on their protein content, which can be characterized by spatial proteomics approaches. However, many spatial proteomics methods are limited in their ability to resolve organellar sub-compartments, profile multiple sub-compartments in parallel, and/or characterize membrane-associated proteomes. Here, we develop a cross-link assisted spatial proteomics (CLASP) strategy that addresses these shortcomings. Using human mitochondria as a model system, we show that CLASP can elucidate spatial proteomes of all mitochondrial sub-compartments and provide topological insight into the mitochondrial membrane proteome. Biochemical and imaging-based follow-up studies confirm that CLASP allows discovering mitochondria-associated proteins and revising previous protein sub-compartment localization and membrane topology data. We also validate the CLASP concept in synaptic vesicles, demonstrating its applicability to different sub-cellular compartments. This study extends the scope of cross-linking mass spectrometry beyond protein structure and interaction analysis towards spatial proteomics, and establishes a method for concomitant profiling of sub-organelle and membrane proteomes.
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Affiliation(s)
- Ying Zhu
- Department of Structural Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany
| | - Kerem Can Akkaya
- Department of Structural Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany
- Department of Molecular Physiology and Cell Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany
| | - Julia Ruta
- Department of Structural Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany
| | - Nanako Yokoyama
- Department of Structural Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany
| | - Cong Wang
- Department of Structural Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany
| | - Max Ruwolt
- Department of Structural Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany
| | - Diogo Borges Lima
- Department of Structural Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany
| | - Martin Lehmann
- Department of Molecular Physiology and Cell Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany
| | - Fan Liu
- Department of Structural Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Str. 10 13125, Berlin, Germany.
- Charité - Universitätsmedizin Berlin, Charitépl. 1, 10117, Berlin, Germany.
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Lukas F, Matthaeus C, López-Hernández T, Lahmann I, Schultz N, Lehmann M, Puchkov D, Pielage J, Haucke V, Maritzen T. Canonical and non-canonical integrin-based adhesions dynamically interconvert. Nat Commun 2024; 15:2093. [PMID: 38453931 PMCID: PMC10920918 DOI: 10.1038/s41467-024-46381-x] [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: 03/06/2023] [Accepted: 02/22/2024] [Indexed: 03/09/2024] Open
Abstract
Adhesions are critical for anchoring cells in their environment, as signaling platforms and for cell migration. In line with these diverse functions different types of cell-matrix adhesions have been described. Best-studied are the canonical integrin-based focal adhesions. In addition, non-canonical integrin adhesions lacking focal adhesion proteins have been discovered. These include reticular adhesions also known as clathrin plaques or flat clathrin lattices, that are enriched in clathrin and other endocytic proteins, as well as extensive adhesion networks and retraction fibers. How these different adhesion types that share a common integrin backbone are related and whether they can interconvert is unknown. Here, we identify the protein stonin1 as a marker for non-canonical αVβ5 integrin-based adhesions and demonstrate by live cell imaging that canonical and non-canonical adhesions can reciprocally interconvert by the selective exchange of components on a stable αVβ5 integrin scaffold. Hence, non-canonical adhesions can serve as points of origin for the generation of canonical focal adhesions.
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Affiliation(s)
- Fabian Lukas
- Department for Nanophysiology, RPTU Kaiserslautern-Landau, Paul-Ehrlich-Straße 23, 67663, Kaiserslautern, Germany
- Membrane Traffic and Cell Motility Group, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Roessle-Straße 10, 13125, Berlin, Germany
| | - Claudia Matthaeus
- Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 50 South Drive, Building 50, Bethesda, MD, 20892, USA
- Department for Molecular Pharmacology and Cell Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Roessle-Straße 10, 13125, Berlin, Germany
| | - Tania López-Hernández
- Department for Molecular Pharmacology and Cell Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Roessle-Straße 10, 13125, Berlin, Germany
| | - Ines Lahmann
- Developmental Biology/Signal Transduction Group, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125, Berlin, Germany
| | - Nicole Schultz
- Department for Nanophysiology, RPTU Kaiserslautern-Landau, Paul-Ehrlich-Straße 23, 67663, Kaiserslautern, Germany
| | - Martin Lehmann
- Cellular Imaging Facility, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Roessle-Straße 10, 13125, Berlin, Germany
| | - Dmytro Puchkov
- Cellular Imaging Facility, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Roessle-Straße 10, 13125, Berlin, Germany
| | - Jan Pielage
- Department for Zoology and Neurobiology, RPTU Kaiserslautern-Landau, Erwin-Schrödinger-Straße 13, 67663, Kaiserslautern, Germany
| | - Volker Haucke
- Department for Molecular Pharmacology and Cell Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Roessle-Straße 10, 13125, Berlin, Germany
- Faculty of Biology, Chemistry, Pharmacy, Freie Universität Berlin, 14195, Berlin, Germany
- NeuroCure Cluster of Excellence, Charité Universitätsmedizin Berlin, 10117, Berlin, Germany
| | - Tanja Maritzen
- Department for Nanophysiology, RPTU Kaiserslautern-Landau, Paul-Ehrlich-Straße 23, 67663, Kaiserslautern, Germany.
- Membrane Traffic and Cell Motility Group, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Roessle-Straße 10, 13125, Berlin, Germany.
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Gebler R, Lehmann M, Löwe M, Gruhl M, Wolfien M, Goldammer M, Bathelt F, Karschau J, Hasselberg A, Bierbaum V, Lange T, Polotzek K, Held HC, Albrecht M, Schmitt J, Sedlmayr M. Supporting regional pandemic management by enabling self-service reporting-A case report. PLoS One 2024; 19:e0297039. [PMID: 38295046 PMCID: PMC10829976 DOI: 10.1371/journal.pone.0297039] [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: 07/31/2023] [Accepted: 12/26/2023] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND The COVID-19 pandemic revealed a need for better collaboration among research, care, and management in Germany as well as globally. Initially, there was a high demand for broad data collection across Germany, but as the pandemic evolved, localized data became increasingly necessary. Customized dashboards and tools were rapidly developed to provide timely and accurate information. In Saxony, the DISPENSE project was created to predict short-term hospital bed capacity demands, and while it was successful, continuous adjustments and the initial monolithic system architecture of the application made it difficult to customize and scale. METHODS To analyze the current state of the DISPENSE tool, we conducted an in-depth analysis of the data processing steps and identified data flows underlying users' metrics and dashboards. We also conducted a workshop to understand the different views and constraints of specific user groups, and brought together and clustered the information according to content-related service areas to determine functionality-related service groups. Based on this analysis, we developed a concept for the system architecture, modularized the main services by assigning specialized applications and integrated them into the existing system, allowing for self-service reporting and evaluation of the expert groups' needs. RESULTS We analyzed the applications' dataflow and identified specific user groups. The functionalities of the monolithic application were divided into specific service groups for data processing, data storage, predictions, content visualization, and user management. After composition and implementation, we evaluated the new system architecture against the initial requirements by enabling self-service reporting to the users. DISCUSSION By modularizing the monolithic application and creating a more flexible system, the challenges of rapidly changing requirements, growing need for information, and high administrative efforts were addressed. CONCLUSION We demonstrated an improved adaptation towards the needs of various user groups, increased efficiency, and reduced burden on administrators, while also enabling self-service functionalities and specialization of single applications on individual service groups.
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Affiliation(s)
- Richard Gebler
- Institute for Medical Informatics and Biometry, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Martin Lehmann
- Institute for Medical Informatics and Biometry, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Maik Löwe
- Institute for Medical Informatics and Biometry, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Mirko Gruhl
- Institute for Medical Informatics and Biometry, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Markus Wolfien
- Institute for Medical Informatics and Biometry, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Miriam Goldammer
- Institute for Medical Informatics and Biometry, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Franziska Bathelt
- Institute for Medical Informatics and Biometry, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany
- Thiem-Research GmbH at Carl-Thiem-Clinic, Cottbus, Germany
| | - Jens Karschau
- Center for Evidence-Based Healthcare, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Andreas Hasselberg
- Center for Evidence-Based Healthcare, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Veronika Bierbaum
- Center for Evidence-Based Healthcare, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Toni Lange
- Center for Evidence-Based Healthcare, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Katja Polotzek
- Center for Evidence-Based Healthcare, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Hanns-Christoph Held
- Clinic and Polyclinic for Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | | | - Jochen Schmitt
- Center for Evidence-Based Healthcare, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Martin Sedlmayr
- Institute for Medical Informatics and Biometry, University Hospital Dresden and Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany
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Bolz S, Kaempf N, Puchkov D, Krauss M, Russo G, Soykan T, Schmied C, Lehmann M, Müller R, Schultz C, Perrais D, Maritzen T, Haucke V. Synaptotagmin 1-triggered lipid signaling facilitates coupling of exo- and endocytosis. Neuron 2023; 111:3765-3774.e7. [PMID: 37738980 DOI: 10.1016/j.neuron.2023.08.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/16/2023] [Accepted: 08/16/2023] [Indexed: 09/24/2023]
Abstract
Exocytosis and endocytosis are essential physiological processes and are of prime importance for brain function. Neurotransmission depends on the Ca2+-triggered exocytosis of synaptic vesicles (SVs). In neurons, exocytosis is spatiotemporally coupled to the retrieval of an equal amount of membrane and SV proteins by compensatory endocytosis. How exocytosis and endocytosis are balanced to maintain presynaptic membrane homeostasis and, thereby, sustain brain function is essentially unknown. We combine mouse genetics with optical imaging to show that the SV calcium sensor Synaptotagmin 1 couples exocytic SV fusion to the endocytic retrieval of SV membranes by promoting the local activity-dependent formation of the signaling lipid phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2) at presynaptic sites. Interference with these mechanisms impairs PI(4,5)P2-triggered SV membrane retrieval but not exocytic SV fusion. Our findings demonstrate that the coupling of SV exocytosis and endocytosis involves local Synaptotagmin 1-induced lipid signaling to maintain presynaptic membrane homeostasis in central nervous system neurons.
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Affiliation(s)
- Svenja Bolz
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany
| | - Natalie Kaempf
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany
| | - Dmytro Puchkov
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany
| | - Michael Krauss
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany
| | - Giulia Russo
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany
| | - Tolga Soykan
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany
| | - Christopher Schmied
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany
| | - Rainer Müller
- European Molecular Biology Laboratory (EMBL), Cell Biology and Biophysics Unit, 69117 Heidelberg, Germany
| | - Carsten Schultz
- European Molecular Biology Laboratory (EMBL), Cell Biology and Biophysics Unit, 69117 Heidelberg, Germany; Department of Chemical Physiology & Biochemistry, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
| | - David Perrais
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, UMR 5297, 33000 Bordeaux, France
| | - Tanja Maritzen
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany; Department of Nanophysiology, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany
| | - Volker Haucke
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany; Faculty of Biology, Chemistry, Pharmacy, Freie Universität Berlin, 14195 Berlin, Germany; NeuroCure Cluster of Excellence, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany.
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6
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Bolz S, Kaempf N, Puchkov D, Krauss M, Russo G, Soykan T, Schmied C, Lehmann M, Müller R, Schultz C, Perrais D, Maritzen T, Haucke V. Synaptotagmin 1-triggered lipid signaling facilitates coupling of exo- and endocytosis. Neuron 2023; 111:3900. [PMID: 38061332 DOI: 10.1016/j.neuron.2023.11.003] [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: 02/01/2024]
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7
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Puchkov D, Müller PM, Lehmann M, Matthaeus C. Analyzing the cellular plasma membrane by fast and efficient correlative STED and platinum replica EM. Front Cell Dev Biol 2023; 11:1305680. [PMID: 38099299 PMCID: PMC10720448 DOI: 10.3389/fcell.2023.1305680] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023] Open
Abstract
The plasma membrane of mammalian cells links transmembrane receptors, various structural components, and membrane-binding proteins to subcellular processes, allowing inter- and intracellular communication. Therefore, membrane-binding proteins, together with structural components such as actin filaments, modulate the cell membrane in their flexibility, stiffness, and curvature. Investigating membrane components and curvature in cells remains challenging due to the diffraction limit in light microscopy. Preparation of 5-15-nm-thin plasma membrane sheets and subsequent inspection by metal replica transmission electron microscopy (TEM) reveal detailed information about the cellular membrane topology, including the structure and curvature. However, electron microscopy cannot identify proteins associated with specific plasma membrane domains. Here, we describe a novel adaptation of correlative super-resolution light microscopy and platinum replica TEM (CLEM-PREM), allowing the analysis of plasma membrane sheets with respect to their structural details, curvature, and associated protein composition. We suggest a number of shortcuts and troubleshooting solutions to contemporary PREM protocols. Thus, implementation of super-resolution stimulated emission depletion (STED) microscopy offers significant reduction in sample preparation time and reduced technical challenges for imaging and analysis. Additionally, highly technical challenges associated with replica preparation and transfer on a TEM grid can be overcome by scanning electron microscopy (SEM) imaging. The combination of STED microscopy and platinum replica SEM or TEM provides the highest spatial resolution of plasma membrane proteins and their underlying membrane and is, therefore, a suitable method to study cellular events like endocytosis, membrane trafficking, or membrane tension adaptations.
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Affiliation(s)
- Dmytro Puchkov
- Cellular Imaging Facility, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Paul Markus Müller
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Martin Lehmann
- Cellular Imaging Facility, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Claudia Matthaeus
- Cellular Physiology of Nutrition, Institute for Nutritional Science, University of Potsdam, Potsdam, Germany
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8
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Ebner M, Puchkov D, López-Ortega O, Muthukottiappan P, Su Y, Schmied C, Zillmann S, Nikonenko I, Koddebusch J, Dornan GL, Lucht MT, Koka V, Jang W, Koch PA, Wallroth A, Lehmann M, Brügger B, Pende M, Winter D, Haucke V. Nutrient-regulated control of lysosome function by signaling lipid conversion. Cell 2023; 186:5328-5346.e26. [PMID: 37883971 DOI: 10.1016/j.cell.2023.09.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 12/05/2022] [Revised: 08/04/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023]
Abstract
Lysosomes serve dual antagonistic functions in cells by mediating anabolic growth signaling and the catabolic turnover of macromolecules. How these janus-faced activities are regulated in response to cellular nutrient status is poorly understood. We show here that lysosome morphology and function are reversibly controlled by a nutrient-regulated signaling lipid switch that triggers the conversion between peripheral motile mTOR complex 1 (mTORC1) signaling-active and static mTORC1-inactive degradative lysosomes clustered at the cell center. Starvation-triggered relocalization of phosphatidylinositol 4-phosphate (PI(4)P)-metabolizing enzymes reshapes the lysosomal surface proteome to facilitate lysosomal proteolysis and to repress mTORC1 signaling. Concomitantly, lysosomal phosphatidylinositol 3-phosphate (PI(3)P), which marks motile signaling-active lysosomes in the cell periphery, is erased. Interference with this PI(3)P/PI(4)P lipid switch module impairs the adaptive response of cells to altering nutrient supply. Our data unravel a key function for lysosomal phosphoinositide metabolism in rewiring organellar membrane dynamics in response to cellular nutrient status.
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Affiliation(s)
- Michael Ebner
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Dmytro Puchkov
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Orestes López-Ortega
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
| | - Pathma Muthukottiappan
- Institute for Biochemistry and Molecular Biology, Medical Faculty, Rheinische Friedrich-Wilhelms-University of Bonn, 53115 Bonn, Germany
| | - Yanwei Su
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Christopher Schmied
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Silke Zillmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Iryna Nikonenko
- Department of Basic Neurosciences and the Center for Neuroscience, CMU, University of Geneva, 1211 Geneva 4, Switzerland
| | - Jochen Koddebusch
- Heidelberg University Biochemistry Center (BZH), Im Neuenheimer Feld 328, 69120 Heidelberg, Germany
| | - Gillian L Dornan
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Max T Lucht
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Vonda Koka
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
| | - Wonyul Jang
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | | | - Alexander Wallroth
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Britta Brügger
- Heidelberg University Biochemistry Center (BZH), Im Neuenheimer Feld 328, 69120 Heidelberg, Germany
| | - Mario Pende
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
| | - Dominic Winter
- Institute for Biochemistry and Molecular Biology, Medical Faculty, Rheinische Friedrich-Wilhelms-University of Bonn, 53115 Bonn, Germany
| | - Volker Haucke
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany; Department of Biology, Chemistry, Pharmacy, Freie Universität Berlin, 14195 Berlin, Germany; Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
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Lu AT, Fei Z, Haghani A, Robeck TR, Zoller JA, Li CZ, Lowe R, Yan Q, Zhang J, Vu H, Ablaeva J, Acosta-Rodriguez VA, Adams DM, Almunia J, Aloysius A, Ardehali R, Arneson A, Baker CS, Banks G, Belov K, Bennett NC, Black P, Blumstein DT, Bors EK, Breeze CE, Brooke RT, Brown JL, Carter GG, Caulton A, Cavin JM, Chakrabarti L, Chatzistamou I, Chen H, Cheng K, Chiavellini P, Choi OW, Clarke SM, Cooper LN, Cossette ML, Day J, DeYoung J, DiRocco S, Dold C, Ehmke EE, Emmons CK, Emmrich S, Erbay E, Erlacher-Reid C, Faulkes CG, Ferguson SH, Finno CJ, Flower JE, Gaillard JM, Garde E, Gerber L, Gladyshev VN, Gorbunova V, Goya RG, Grant MJ, Green CB, Hales EN, Hanson MB, Hart DW, Haulena M, Herrick K, Hogan AN, Hogg CJ, Hore TA, Huang T, Izpisua Belmonte JC, Jasinska AJ, Jones G, Jourdain E, Kashpur O, Katcher H, Katsumata E, Kaza V, Kiaris H, Kobor MS, Kordowitzki P, Koski WR, Krützen M, Kwon SB, Larison B, Lee SG, Lehmann M, Lemaitre JF, Levine AJ, Li C, Li X, Lim AR, Lin DTS, Lindemann DM, Little TJ, Macoretta N, Maddox D, Matkin CO, Mattison JA, McClure M, Mergl J, Meudt JJ, Montano GA, Mozhui K, Munshi-South J, Naderi A, Nagy M, Narayan P, Nathanielsz PW, Nguyen NB, Niehrs C, O'Brien JK, O'Tierney Ginn P, Odom DT, Ophir AG, Osborn S, Ostrander EA, Parsons KM, Paul KC, Pellegrini M, Peters KJ, Pedersen AB, Petersen JL, Pietersen DW, Pinho GM, Plassais J, Poganik JR, Prado NA, Reddy P, Rey B, Ritz BR, Robbins J, Rodriguez M, Russell J, Rydkina E, Sailer LL, Salmon AB, Sanghavi A, Schachtschneider KM, Schmitt D, Schmitt T, Schomacher L, Schook LB, Sears KE, Seifert AW, Seluanov A, Shafer ABA, Shanmuganayagam D, Shindyapina AV, Simmons M, Singh K, Sinha I, Slone J, Snell RG, Soltanmaohammadi E, Spangler ML, Spriggs MC, Staggs L, Stedman N, Steinman KJ, Stewart DT, Sugrue VJ, Szladovits B, Takahashi JS, Takasugi M, Teeling EC, Thompson MJ, Van Bonn B, Vernes SC, Villar D, Vinters HV, Wallingford MC, Wang N, Wayne RK, Wilkinson GS, Williams CK, Williams RW, Yang XW, Yao M, Young BG, Zhang B, Zhang Z, Zhao P, Zhao Y, Zhou W, Zimmermann J, Ernst J, Raj K, Horvath S. Author Correction: Universal DNA methylation age across mammalian tissues. Nat Aging 2023; 3:1462. [PMID: 37674040 PMCID: PMC10645586 DOI: 10.1038/s43587-023-00499-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Affiliation(s)
- A T Lu
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
| | - Z Fei
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Statistics, University of California, Riverside, Riverside, CA, USA
| | - A Haghani
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
| | - T R Robeck
- Zoological SeaWorld Parks and Entertainment, Orlando, FL, USA
| | - J A Zoller
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - C Z Li
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - R Lowe
- Altos Labs, Cambridge Institute of Science, Cambridge, UK
| | - Q Yan
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
| | - J Zhang
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - H Vu
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - J Ablaeva
- Department of Biology, University of Rochester, Rochester, NY, USA
| | - V A Acosta-Rodriguez
- Department of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - D M Adams
- Department of Biology, University of Maryland, College Park, MD, USA
| | - J Almunia
- Loro Parque Fundacion, Puerto de la Cruz, Spain
| | - A Aloysius
- Department of Biology, University of Kentucky, Lexington, KY, USA
| | - R Ardehali
- Division of Cardiology, Department of Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - A Arneson
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - C S Baker
- Marine Mammal Institute, Oregon State University, Newport, OR, USA
| | - G Banks
- School of Science and Technology, Clifton Campus, Nottingham Trent University, Nottingham, UK
| | - K Belov
- School of Life and Environmental Sciences, the University of Sydney, Sydney, New South Wales, Australia
| | - N C Bennett
- Department of Zoology and Entomology, University of Pretoria, Hatfield, South Africa
| | - P Black
- Busch Gardens Tampa, Tampa, FL, USA
| | - D T Blumstein
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, USA
- Rocky Mountain Biological Laboratory, Crested Butte, CO, USA
| | - E K Bors
- Marine Mammal Institute, Oregon State University, Newport, OR, USA
| | - C E Breeze
- Altius Institute for Biomedical Sciences, Seattle, WA, USA
| | - R T Brooke
- Epigenetic Clock Development Foundation, Los Angeles, CA, USA
| | - J L Brown
- Center for Species Survival, Smithsonian Conservation Biology Institute, Front Royal, VA, USA
| | - G G Carter
- Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH, USA
| | - A Caulton
- AgResearch, Invermay Agricultural Centre, Mosgiel, New Zealand
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - J M Cavin
- Gulf World, Dolphin Company, Panama City Beach, FL, USA
| | - L Chakrabarti
- School of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK
| | - I Chatzistamou
- Department of Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, SC, USA
| | - H Chen
- Department of Pharmacology, Addiction Science and Toxicology, the University of Tennessee Health Science Center, Memphis, TN, USA
| | - K Cheng
- Medical Informatics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - P Chiavellini
- Biochemistry Research Institute of La Plata, Histology and Pathology, School of Medicine, University of La Plata, La Plata, Argentina
| | - O W Choi
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - S M Clarke
- AgResearch, Invermay Agricultural Centre, Mosgiel, New Zealand
| | - L N Cooper
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, OH, USA
| | - M L Cossette
- Department of Environmental and Life Sciences, Trent University, Peterborough, Ontario, Canada
| | - J Day
- Taronga Institute of Science and Learning, Taronga Conservation Society Australia, Mosman, New South Wales, Australia
| | - J DeYoung
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - S DiRocco
- SeaWorld of Florida, Orlando, FL, USA
| | - C Dold
- Zoological Operations, SeaWorld Parks and Entertainment, Orlando, FL, USA
| | | | - C K Emmons
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, USA
| | - S Emmrich
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - E Erbay
- Altos Labs, San Francisco, CA, USA
| | - C Erlacher-Reid
- SeaWorld of Florida, Orlando, FL, USA
- SeaWorld Orlando, Orlando, FL, USA
| | - C G Faulkes
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, UK
| | - S H Ferguson
- Fisheries and Oceans Canada, Freshwater Institute, Winnipeg, Manitoba, Canada
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - C J Finno
- Department of Population Health and Reproduction, University of California, Davis School of Veterinary Medicine, Davis, CA, USA
| | | | - J M Gaillard
- Universite de Lyon, Universite Lyon 1, CNRS, Laboratoire de Biometrie et Biologie Evolutive, Villeurbanne, France
| | - E Garde
- Greenland Institute of Natural Resources, Nuuk, Greenland
| | - L Gerber
- Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - V N Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - V Gorbunova
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - R G Goya
- Biochemistry Research Institute of La Plata, Histology and Pathology, School of Medicine, University of La Plata, La Plata, Argentina
| | - M J Grant
- Applied Translational Genetics Group, School of Biological Sciences, Centre for Brain Research, the University of Auckland, Auckland, New Zealand
| | - C B Green
- Department of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - E N Hales
- Department of Population Health and Reproduction, University of California, Davis School of Veterinary Medicine, Davis, CA, USA
| | - M B Hanson
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, USA
| | - D W Hart
- Department of Zoology and Entomology, University of Pretoria, Hatfield, South Africa
| | - M Haulena
- Vancouver Aquarium, Vancouver, British Columbia, Canada
| | - K Herrick
- SeaWorld of California, San Diego, CA, USA
| | - A N Hogan
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - C J Hogg
- School of Life and Environmental Sciences, the University of Sydney, Sydney, New South Wales, Australia
| | - T A Hore
- Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - T Huang
- Division of Human Genetics, Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
- Division of Genetics and Metabolism, Oishei Children's Hospital, Buffalo, NY, USA
| | | | - A J Jasinska
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - G Jones
- School of Biological Sciences, University of Bristol, Bristol, UK
| | | | - O Kashpur
- Mother Infant Research Institute, Tufts Medical Center, Boston, MA, USA
| | - H Katcher
- Yuvan Research, Mountain View, CA, USA
| | | | - V Kaza
- Peromyscus Genetic Stock Center, University of South Carolina, Columbia, SC, USA
| | - H Kiaris
- Peromyscus Genetic Stock Center, University of South Carolina, Columbia, SC, USA
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, USA
| | - M S Kobor
- Edwin S.H. Leong Healthy Aging Program, Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada
| | - P Kordowitzki
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Olsztyn, Poland
- Institute for Veterinary Medicine, Nicolaus Copernicus University, Torun, Poland
| | - W R Koski
- LGL Limited, King City, Ontario, Canada
| | - M Krützen
- Evolutionary Genetics Group, Department of Evolutionary Anthropology, University of Zurich, Zurich, Switzerland
| | - S B Kwon
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - B Larison
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
- Center for Tropical Research, Institute for the Environment and Sustainability, UCLA, Los Angeles, CA, USA
| | - S G Lee
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - M Lehmann
- Biochemistry Research Institute of La Plata, Histology and Pathology, School of Medicine, University of La Plata, La Plata, Argentina
| | - J F Lemaitre
- Universite de Lyon, Universite Lyon 1, CNRS, Laboratoire de Biometrie et Biologie Evolutive, Villeurbanne, France
| | - A J Levine
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - C Li
- Texas Pregnancy and Life-course Health Center, Southwest National Primate Research Center, San Antonio, TX, USA
- Department of Animal Science, College of Agriculture and Natural Resources, Laramie, WY, USA
| | - X Li
- Technology Center for Genomics and Bioinformatics, Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - A R Lim
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - D T S Lin
- Centre for Molecular Medicine and Therapeutics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - T J Little
- Institute of Ecology and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - N Macoretta
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - D Maddox
- White Oak Conservation, Yulee, FL, USA
| | - C O Matkin
- North Gulf Oceanic Society, Homer, AK, USA
| | - J A Mattison
- Translational Gerontology Branch, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD, USA
| | | | - J Mergl
- Marineland of Canada, Niagara Falls, Ontario, Canada
| | - J J Meudt
- Biomedical and Genomic Research Group, Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, WI, USA
| | - G A Montano
- Zoological Operations, SeaWorld Parks and Entertainment, Orlando, FL, USA
| | - K Mozhui
- Department of Preventive Medicine, University of Tennessee Health Science Center, College of Medicine, Memphis, TN, USA
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, College of Medicine, Memphis, TN, USA
| | - J Munshi-South
- Louis Calder Center-Biological Field Station, Department of Biological Sciences, Fordham University, Armonk, NY, USA
| | - A Naderi
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, USA
| | - M Nagy
- Museum fur Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany
| | - P Narayan
- Applied Translational Genetics Group, School of Biological Sciences, Centre for Brain Research, the University of Auckland, Auckland, New Zealand
| | - P W Nathanielsz
- Texas Pregnancy and Life-course Health Center, Southwest National Primate Research Center, San Antonio, TX, USA
- Department of Animal Science, College of Agriculture and Natural Resources, Laramie, WY, USA
| | - N B Nguyen
- Division of Cardiology, Department of Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - C Niehrs
- Institute of Molecular Biology, Mainz, Germany
- Division of Molecular Embryology, DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - J K O'Brien
- Taronga Institute of Science and Learning, Taronga Conservation Society Australia, Mosman, New South Wales, Australia
| | - P O'Tierney Ginn
- Mother Infant Research Institute, Tufts Medical Center, Boston, MA, USA
- Department of Obstetrics and Gynecology, Tufts University School of Medicine, Boston, MA, USA
| | - D T Odom
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
- Division of Regulatory Genomics and Cancer Evolution, Deutsches Krebsforschungszentrum, Heidelberg, Germany
| | - A G Ophir
- Department of Psychology, Cornell University, Ithaca, NY, USA
| | - S Osborn
- SeaWorld of Texas, San Antonio, TX, USA
| | - E A Ostrander
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - K M Parsons
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, USA
| | - K C Paul
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - M Pellegrini
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - K J Peters
- Evolutionary Genetics Group, Department of Evolutionary Anthropology, University of Zurich, Zurich, Switzerland
- School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, Australia
| | - A B Pedersen
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - J L Petersen
- Department of Animal Science, University of Nebraska, Lincoln, NE, USA
| | - D W Pietersen
- Mammal Research Institute, Department of Zoology and Entomology, University of Pretoria, Hatfield, South Africa
| | - G M Pinho
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
| | - J Plassais
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - J R Poganik
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - N A Prado
- Department of Biology, College of Arts and Science, Adelphi University, Garden City, NY, USA
| | - P Reddy
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
- Salk Institute for Biological Studies, La Jolla, CA, USA
| | - B Rey
- Universite de Lyon, Universite Lyon 1, CNRS, Laboratoire de Biometrie et Biologie Evolutive, Villeurbanne, France
| | - B R Ritz
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
- Department of Environmental Health Sciences, UCLA Fielding School of Public Health, Los Angeles, CA, USA
- Department of Neurology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - J Robbins
- Center for Coastal Studies, Provincetown, MA, USA
| | | | - J Russell
- SeaWorld of California, San Diego, CA, USA
| | - E Rydkina
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - L L Sailer
- Department of Psychology, Cornell University, Ithaca, NY, USA
| | - A B Salmon
- The Sam and Ann Barshop Institute for Longevity and Aging Studies and Department of Molecular Medicine, UT Health San Antonio and the Geriatric Research Education and Clinical Center, South Texas Veterans Healthcare System, San Antonio, TX, USA
| | | | - K M Schachtschneider
- Department of Radiology, University of Illinois at Chicago, Chicago, IL, USA
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, IL, USA
- National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - D Schmitt
- College of Agriculture, Missouri State University, Springfield, MO, USA
| | - T Schmitt
- SeaWorld of California, San Diego, CA, USA
| | | | - L B Schook
- Department of Radiology, University of Illinois at Chicago, Chicago, IL, USA
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - K E Sears
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - A W Seifert
- Department of Biology, University of Kentucky, Lexington, KY, USA
| | - A Seluanov
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - A B A Shafer
- Department of Forensic Science, Environmental and Life Sciences, Trent University, Peterborough, Ontario, Canada
| | - D Shanmuganayagam
- Biomedical and Genomic Research Group, Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, WI, USA
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - A V Shindyapina
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - K Singh
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS University, Mumbai, India
| | - I Sinha
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
| | - J Slone
- Division of Human Genetics, Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
| | - R G Snell
- Applied Translational Genetics Group, School of Biological Sciences, Centre for Brain Research, the University of Auckland, Auckland, New Zealand
| | - E Soltanmaohammadi
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, USA
| | - M L Spangler
- Department of Animal Science, University of Nebraska, Lincoln, NE, USA
| | | | - L Staggs
- SeaWorld of Florida, Orlando, FL, USA
| | | | - K J Steinman
- Species Preservation Laboratory, SeaWorld San Diego, San Diego, CA, USA
| | - D T Stewart
- Biology Department, Acadia University, Wolfville, Nova Scotia, Canada
| | - V J Sugrue
- Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - B Szladovits
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, UK
| | - J S Takahashi
- Department of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Howard Hughes Medical Institute, Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - M Takasugi
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - E C Teeling
- School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | - M J Thompson
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - B Van Bonn
- John G. Shedd Aquarium, Chicago, IL, USA
| | - S C Vernes
- School of Biology, the University of St Andrews, Fife, UK
- Neurogenetics of Vocal Communication Group, Max Planck Institute for Psycholinguistics, Nijmegen, the Netherlands
| | - D Villar
- Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - H V Vinters
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - M C Wallingford
- Mother Infant Research Institute, Tufts Medical Center, Boston, MA, USA
- Division of Obstetrics and Gynecology, Tufts University School of Medicine, Boston, MA, USA
| | - N Wang
- Center for Neurobehavioral Genetics, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - R K Wayne
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
| | - G S Wilkinson
- Department of Biology, University of Maryland, College Park, MD, USA
| | - C K Williams
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - R W Williams
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, College of Medicine, Memphis, TN, USA
| | - X W Yang
- Center for Neurobehavioral Genetics, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - M Yao
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - B G Young
- Fisheries and Oceans Canada, Winnipeg, Manitoba, Canada
| | - B Zhang
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Z Zhang
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - P Zhao
- Division of Cardiology, Department of Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA, USA
| | - Y Zhao
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - W Zhou
- Center for Computational and Genomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - J Zimmermann
- Department of Mathematics and Technology, University of Applied Sciences Koblenz, Koblenz, Germany
| | - J Ernst
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - K Raj
- Altos Labs, Cambridge Institute of Science, Cambridge, UK
| | - S Horvath
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA.
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA.
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Weismann C, Lehmann M, Aretxabaleta M, Koos B, Schulz MC. Maxillary canine position of patients with non-syndromic craniofacial disorder: a retrospective evaluation of panoramic radiographs. Head Face Med 2023; 19:44. [PMID: 37814280 PMCID: PMC10561517 DOI: 10.1186/s13005-023-00390-1] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 09/29/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND The study evaluates the position and displacement tendency of unerupted maxillary canines in orthodontic patients with non-syndromic craniofacial disorders (CD) compared to a control (C) group. METHODS Canine position and displacement tendency were evaluated using panoramic radiographs (PAN) examined with parameters such as sector classification (sectors 1-5) and inclination angles (α and β). The displacement tendency was defined as the positioning of the tip in sectors 1 or 2, as well as its combination with increased angles (α > 30° and β > 39°). In addition, the correlation of the tooth position and agenesis, cleft side, and sex was assessed. RESULTS A total of 116 pre-treatment PAN, divided into the CD group (n = 50; mean age 8.32 ± 2.27 years) and the C group (n = 66; mean age 10.80 ± 2.82 years), were evaluated in this study. The sector classification showed no displacement tendency in both groups. Inclination angles α/β showed a statistically significant higher displacement tendency (p = 0.01) of the CD group (n = 5) on the right side, compared to healthy subjects (n = 1). Male CD patients had a statistically significant higher displacement tendency on the right side (p = 0.03). A statistically significant correlation between cleft and non-cleft-side (p = 0.03) was found. CONCLUSION Patients with CD showed a statistically significant higher displacement tendency of the maxillary canine affected by the cleft side. The inclination angle was found to be the better predictor compared to the sector classification which should be considered in the orthodontic treatment planning.
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Affiliation(s)
- C. Weismann
- Department of Orthodontics, University Hospital Tübingen, Osianderstr, 2-8, 72076 Tübingen, Germany
| | - M. Lehmann
- Department of Orthodontics, University Hospital Tübingen, Osianderstr, 2-8, 72076 Tübingen, Germany
| | - M. Aretxabaleta
- Department of Orthodontics, University Hospital Tübingen, Osianderstr, 2-8, 72076 Tübingen, Germany
| | - B. Koos
- Department of Orthodontics, University Hospital Tübingen, Osianderstr, 2-8, 72076 Tübingen, Germany
| | - M. C. Schulz
- Department of Oral and Maxillofacial Surgery, University Hospital Tübingen, Osianderstr, 2-8, 72076 Tübingen, Germany
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11
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Lehmann M, Hosa H, Bartl T, Tsibulak I, Polterauer S, Pötsch N, Seckl M, Marth C. Combined chemotherapy and pembrolizumab salvages multi-chemotherapy agent and avelumab resistant choriocarcinoma: A case report. Gynecol Oncol Rep 2023; 49:101259. [PMID: 37636493 PMCID: PMC10450405 DOI: 10.1016/j.gore.2023.101259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/03/2023] [Accepted: 08/08/2023] [Indexed: 08/29/2023] Open
Abstract
Introduction Gestational trophoblastic neoplasia (GTN) including choriocarcinoma (CC) frequently requires multi-agent chemotherapy to achieve cure. In chemotherapy-resistant GTN, immunotherapy with the checkpoint inhibitors pembrolizumab, avelumab and camrelizumab are potential new treatment options previously described in small case series, phase 2 trials and case reports. Case description A 32-year-old woman was diagnosed with gestational choriocarcinoma (FIGO score 5). Prior administered therapy regimes included methotrexate, actinomycin-D followed by open hysterectomy with bilateral salpingectomy (histology without GTN) as well as multi-agent chemotherapy and avelumab single-agent. After detection of a suspicious pulmonary mass video- assisted thoracoscopic left lung segmentectomy was performed confirming CC. The patient experienced an intracerebral haemorrhage and was treated with an emergency decompressive craniotomy. The cerebrospinal fluid showed an increased ratio of hCG compared to serum. Therapy with combined escalated etoposide and cisplatin with pembrolizumab was commenced followed by maintenance pembrolizumab achieving a complete hCG response and negative PET CT. Discussion In the management of multi drug- resistant GTN, application of checkpoint inhibitor pembrolizumab is a new therapeutic strategy. In this heavily pre-treated patient incorporation of pembrolizumab resulted in complete long-term response in a patient who had also failed avelumab therapy.
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Affiliation(s)
- M. Lehmann
- Department of Obstetrics and Gynecology, Medical University of Innsbruck, Innsbruck, Austria
| | - H. Hosa
- Department of Obstetrics and Gynecology, Medical University of Innsbruck, Innsbruck, Austria
| | - T. Bartl
- Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| | - I. Tsibulak
- Department of Obstetrics and Gynecology, Medical University of Innsbruck, Innsbruck, Austria
| | - S. Polterauer
- Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| | - N. Pötsch
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - M.J. Seckl
- Deptartment of Medical Oncology, Charing Cross Hospital Campus of Imperial College London, London, United Kingdom
| | - C. Marth
- Department of Obstetrics and Gynecology, Medical University of Innsbruck, Innsbruck, Austria
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12
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Barth U, Lehmann M, Meyer F, Halloul Z. [Topicality of the fundamental and determining importance of chronic critical ischemia of the extremities and its restorative treatment using crural/pedal bypasses in Germany and in Saxony-Anhalt]. Chirurgie (Heidelb) 2023; 94:861-869. [PMID: 37610660 PMCID: PMC10522525 DOI: 10.1007/s00104-023-01933-7] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/11/2023] [Indexed: 08/24/2023]
Abstract
INTRODUCTION Currently, there is an increase in severe stages of peripheral arterial occlusive disease (PAOD) with critical ischemia. This seems to correspond to the general demographic change as well as a consequence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic of the last 3 years. The now established and accepted interventional/endovascular approach for severe lower leg PAOD in experienced hands is still considered the first-line treatment but from the authors' perspective crural/pedal venous bypass is experiencing a renaissance. MATERIAL AND METHODS Compact narrative review of the current state of crural/pedal bypass surgery in Germany and Saxony-Anhalt (SA) combined with selective references from the current scientific medical literature and own clinical experiences. RESULTS The current statistics of case-related diagnosis-related groups (DRG) data show that, especially with the occurrence of the corona pandemic, a decrease in inpatient case numbers of patients with PAOD stage IIB can be observed nationwide and also in SA. The severe PAOD stages have remained approximately the same in case numbers but increased in SA. The risk stratification based on the wound, ischemia and foot infection (WIFI) classification offers the possibility to be able to make statements about the risk of amputation, benefits and type of revascularization measures. The length of the occlusion, occlusion site of the affected vessels and degree of calcification are taken into account in the global limb anatomic staging system (GLASS) to assess the prognosis. The evaluation of the case-based hospital statistics from 2015 to 2020 showed a constant use of femorocrural/femoropedal bypass surgery in Germany as well as a slight increase in reconstruction using femorocrural bypasses in SA, which seems to correlate with the tendency for an increase in the number of cases of severe PAOD. Parameter-based objectification of the severity of critical limb ischemia should be included in the indications for placement of a crural/pedal bypass. The WIFI classification and GLASS are suitable for this purpose as a relative prognosis of success is also possible. The treatment of critical limb ischemia by crural/pedal bypass surgery continues to find a constant application in Germany and SA.
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Affiliation(s)
- Udo Barth
- Arbeitsbereich Gefäßchirurgie, Klinik für Allgemein‑, Gefäß- und Viszeralchirurgie, Helios Klinik Jerichower Land, August-Bebel-Straße 55a, 39288, Burg, Deutschland.
- Arbeitsbereich Gefäßchirurgie, Klinik für Allgemein‑, Viszeral‑, Gefäß- und Transplantationschirurgie, Universitätsklinikum Magdeburg A. ö. R., Magdeburg, Deutschland, Leipziger Str. 44, 39120.
| | - M Lehmann
- Arbeitsbereich Gefäßchirurgie, Klinik für Allgemein‑, Gefäß- und Viszeralchirurgie, Helios Klinik Jerichower Land, August-Bebel-Straße 55a, 39288, Burg, Deutschland
| | - F Meyer
- Arbeitsbereich Gefäßchirurgie, Klinik für Allgemein‑, Viszeral‑, Gefäß- und Transplantationschirurgie, Universitätsklinikum Magdeburg A. ö. R., Magdeburg, Deutschland, Leipziger Str. 44, 39120
| | - Z Halloul
- Arbeitsbereich Gefäßchirurgie, Klinik für Allgemein‑, Viszeral‑, Gefäß- und Transplantationschirurgie, Universitätsklinikum Magdeburg A. ö. R., Magdeburg, Deutschland, Leipziger Str. 44, 39120
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13
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Paasch C, Schildberg C, Lehmann M, Meyer F, Barth U. [Statutory provisions, aims, motives, attitudes and thinking on the outpatient operation profile of general and abdominal surgery]. Chirurgie (Heidelb) 2023; 94:850-860. [PMID: 37462682 PMCID: PMC10522497 DOI: 10.1007/s00104-023-01920-y] [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] [Subscribe] [Scholar Register] [Accepted: 06/05/2023] [Indexed: 09/28/2023]
Abstract
AIM The aim of the manuscript is to discuss and assess the implications and opportunities as well as dangers of "outpatientization" of surgical and inpatient services for general and abdominal surgery. METHOD Narrative overview with literature reference based on a PubMed search with the search terms: outpatient operations and inpatient interventions, AOP catalog, hybrid DRG, outpatient hernia surgery, outpatient proctological surgery, selective sector-equal reimbursement and day-care forms of care. RESULTS (KEY POINTS): - In the Anglo-American area, the treatment of inguinal hernias is predominantly carried out on an outpatient clinic basis. In the USA, Sweden and Denmark, for example, over 70% of all hernias are treated in an outpatient clinic setting, in Germany it is only 20%. In Germany, the catalog of operations that can be performed on an outpatient basis and other department-replacing interventions in hospitals defines outpatient interventions in accordance with § 115b Social Security Code (SGB) V (Germany). - The conversion from inpatient to outpatient hernia surgery has also failed so far due to an enormous difference in revenues. According to the will of the Federal Ministry of Health, the planned forms of semistationary care are intended to relieve the nursing staff in the hospitals and thus relieve the tense situation of nursing professionals. By the end of March 2023, a special industry-specific reimbursement, so-called hybrid DRGs, is to be agreed, which applies regardless of whether a paid service is provided on an outpatient or inpatient basis. - According to § 115b SGB V, whether a hernia can be performed under inpatient or outpatient conditions is also decided according to the location of the hernia. In the new AOP catalog, frailty is operationalized in the context factors via the degree of care and the Barthel index. If one compares the number of encryption procedures for the 5‑530 procedure (closure of an inguinal hernia) in 2005 (184,679) with the pre-corona year 2019 (179,851), it can be seen that the proportion of hernias treated in hospital remained approximately the same over a period of 14 years. - Most elective proctological procedures can be performed on an outpatient basis. For reasons of safety (bleeding) and practicality (pain management, dressing change of large abscesses), inpatient surgery is preferred: extensive hemorrhoidectomy in the case of massive findings, large abscesses, extensive perianal fistula corrections, particularly high transsphincteric or suprasphincteric fistulas. - Guidelines based on the British Guidelines for Ambulant Surgery should be required for comprehensive outpatient treatment in surgery. The introduction of corresponding hybrid DRGs seems to be the right way to cover the costs of outpatient surgery in hospitals. CONCLUSION The restructuring of the hospital landscape and the nationwide expansion of outpatient operations is an unavoidable requirement in view of rising costs in the healthcare system and impending financing bottlenecks, which will pose challenges for the surgical disciplines in the years to come. Outpatient surgery is already practiced in many areas but has not become established due to the different remuneration. The flat rates for the same branches can be a starting point here. Furthermore, evidence-based framework conditions must be created along the lines of the British Guidelines for Ambulant Surgery.
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Affiliation(s)
- C Paasch
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Brandenburg/Havel, Medizinische Hochschule Brandenburg, Brandenburg/Havel, Deutschland
| | - C Schildberg
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Brandenburg/Havel, Medizinische Hochschule Brandenburg, Brandenburg/Havel, Deutschland
| | - M Lehmann
- Klinik für Allgemein‑, Gefäß- und Viszeralchirurgie, HELIOS Klinik Jerichower Land, Burg, Deutschland
| | - F Meyer
- Kllinik für Allgemein‑, Viszeral‑, Gefäß- und Transplantationschirurgie, Universitätsklinikum Magdeburg A. ö. R., Leipziger Str. 44, 39118, Magdeburg, Deutschland.
| | - U Barth
- Klinik für Allgemein‑, Gefäß- und Viszeralchirurgie, HELIOS Klinik Jerichower Land, Burg, Deutschland
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14
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Ratswohl C, Vázquez García C, Ahmad AUW, Gonschior H, Lebedin M, Silvis CE, Spatt L, Gerhard C, Lehmann M, Sander LE, Kurth F, Olsson S, de la Rosa K. A design strategy to generate a SARS-CoV-2 RBD vaccine that abrogates ACE2 binding and improves neutralizing antibody responses. Eur J Immunol 2023; 53:e2350408. [PMID: 37435628 DOI: 10.1002/eji.202350408] [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: 01/27/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 07/13/2023]
Abstract
The structure-based design of antigens holds promise for developing vaccines with higher efficacy and improved safety profiles. We postulate that abrogation of host receptor interaction bears potential for the improvement of vaccines by preventing antigen-induced modification of receptor function as well as the displacement or masking of the immunogen. Antigen modifications may yet destroy epitopes crucial for antibody neutralization. Here, we present a methodology that integrates deep mutational scans to identify and score SARS-CoV-2 receptor binding domain variants that maintain immunogenicity, but lack interaction with the widely expressed host receptor. Single point mutations were scored in silico, validated in vitro, and applied in vivo. Our top-scoring variant receptor binding domain-G502E prevented spike-induced cell-to-cell fusion, receptor internalization, and improved neutralizing antibody responses by 3.3-fold in rabbit immunizations. We name our strategy BIBAX for body-inert, B-cell-activating vaccines, which in the future may be applied beyond SARS-CoV-2 for the improvement of vaccines by design.
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Affiliation(s)
- Christoph Ratswohl
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Department of Biology, Chemistry and Pharmacy, Free University of Berlin, Berlin, Germany
| | - Clara Vázquez García
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Charité - Universitätsmedizin, Berlin, Germany
| | - Ata Ul Wakeel Ahmad
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Charité - Universitätsmedizin, Berlin, Germany
| | - Hannes Gonschior
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
| | - Mikhail Lebedin
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Charité - Universitätsmedizin, Berlin, Germany
| | - Casper Ewijn Silvis
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Charité - Universitätsmedizin, Berlin, Germany
| | - Lisa Spatt
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Cathrin Gerhard
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
| | - Leif E Sander
- Charité - Universitätsmedizin, Berlin, Germany
- Berlin Institute of Health (BIH) at Charité, Berlin, Germany
| | | | - Simon Olsson
- Department of Computer Science and Engineering, Chalmers University of Technology, Göteborg, Västra Götalands län, Sweden
| | - Kathrin de la Rosa
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Berlin Institute of Health (BIH) at Charité, Berlin, Germany
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15
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Bogdanow B, Gruska I, Mühlberg L, Protze J, Hohensee S, Vetter B, Bosse JB, Lehmann M, Sadeghi M, Wiebusch L, Liu F. Spatially resolved protein map of intact human cytomegalovirus virions. Nat Microbiol 2023; 8:1732-1747. [PMID: 37550507 PMCID: PMC10465357 DOI: 10.1038/s41564-023-01433-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 05/03/2022] [Accepted: 06/20/2023] [Indexed: 08/09/2023]
Abstract
Herpesviruses assemble large enveloped particles that are difficult to characterize structurally due to their size, fragility and complex multilayered proteome with partially amorphous nature. Here we used crosslinking mass spectrometry and quantitative proteomics to derive a spatially resolved interactome map of intact human cytomegalovirus virions. This enabled the de novo allocation of 32 viral proteins into four spatially resolved virion layers, each organized by a dominant viral scaffold protein. The viral protein UL32 engages with all layers in an N-to-C-terminal radial orientation, bridging nucleocapsid to viral envelope. We observed the layer-specific incorporation of 82 host proteins, of which 39 are selectively recruited. We uncovered how UL32, by recruitment of PP-1 phosphatase, antagonizes binding to 14-3-3 proteins. This mechanism assures effective viral biogenesis, suggesting a perturbing role of UL32-14-3-3 interaction. Finally, we integrated these data into a coarse-grained model to provide global insights into the native configuration of virus and host protein interactions inside herpesvirions.
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Affiliation(s)
- Boris Bogdanow
- Research group 'Structural Interactomics', Leibniz Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany.
| | - Iris Gruska
- Labor für Pädiatrische Molekularbiologie, Department of Pediatric Oncology and Hematology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Lars Mühlberg
- Research group 'Structural Interactomics', Leibniz Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
| | - Jonas Protze
- Research group 'Structural Bioinformatics', Leibniz Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
| | - Svea Hohensee
- Cellular Imaging core facility, Leibniz Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
| | - Barbara Vetter
- Labor für Pädiatrische Molekularbiologie, Department of Pediatric Oncology and Hematology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jens B Bosse
- Centre for Structural Systems Biology, Hamburg, Germany
- Hannover Medical School, Institute of Virology, Hannover, Germany
- Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
- Leibniz-Institute of Virology (LIV), Hamburg, Germany
| | - Martin Lehmann
- Cellular Imaging core facility, Leibniz Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
| | - Mohsen Sadeghi
- Department of Mathematics and Computer Science, Freie Universität Berlin, Berlin, Germany.
| | - Lüder Wiebusch
- Labor für Pädiatrische Molekularbiologie, Department of Pediatric Oncology and Hematology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
| | - Fan Liu
- Research group 'Structural Interactomics', Leibniz Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany.
- Charité Universitätsmedizin Berlin, Berlin, Germany.
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16
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Lu AT, Fei Z, Haghani A, Robeck TR, Zoller JA, Li CZ, Lowe R, Yan Q, Zhang J, Vu H, Ablaeva J, Acosta-Rodriguez VA, Adams DM, Almunia J, Aloysius A, Ardehali R, Arneson A, Baker CS, Banks G, Belov K, Bennett NC, Black P, Blumstein DT, Bors EK, Breeze CE, Brooke RT, Brown JL, Carter GG, Caulton A, Cavin JM, Chakrabarti L, Chatzistamou I, Chen H, Cheng K, Chiavellini P, Choi OW, Clarke SM, Cooper LN, Cossette ML, Day J, DeYoung J, DiRocco S, Dold C, Ehmke EE, Emmons CK, Emmrich S, Erbay E, Erlacher-Reid C, Faulkes CG, Ferguson SH, Finno CJ, Flower JE, Gaillard JM, Garde E, Gerber L, Gladyshev VN, Gorbunova V, Goya RG, Grant MJ, Green CB, Hales EN, Hanson MB, Hart DW, Haulena M, Herrick K, Hogan AN, Hogg CJ, Hore TA, Huang T, Izpisua Belmonte JC, Jasinska AJ, Jones G, Jourdain E, Kashpur O, Katcher H, Katsumata E, Kaza V, Kiaris H, Kobor MS, Kordowitzki P, Koski WR, Krützen M, Kwon SB, Larison B, Lee SG, Lehmann M, Lemaitre JF, Levine AJ, Li C, Li X, Lim AR, Lin DTS, Lindemann DM, Little TJ, Macoretta N, Maddox D, Matkin CO, Mattison JA, McClure M, Mergl J, Meudt JJ, Montano GA, Mozhui K, Munshi-South J, Naderi A, Nagy M, Narayan P, Nathanielsz PW, Nguyen NB, Niehrs C, O'Brien JK, O'Tierney Ginn P, Odom DT, Ophir AG, Osborn S, Ostrander EA, Parsons KM, Paul KC, Pellegrini M, Peters KJ, Pedersen AB, Petersen JL, Pietersen DW, Pinho GM, Plassais J, Poganik JR, Prado NA, Reddy P, Rey B, Ritz BR, Robbins J, Rodriguez M, Russell J, Rydkina E, Sailer LL, Salmon AB, Sanghavi A, Schachtschneider KM, Schmitt D, Schmitt T, Schomacher L, Schook LB, Sears KE, Seifert AW, Seluanov A, Shafer ABA, Shanmuganayagam D, Shindyapina AV, Simmons M, Singh K, Sinha I, Slone J, Snell RG, Soltanmaohammadi E, Spangler ML, Spriggs MC, Staggs L, Stedman N, Steinman KJ, Stewart DT, Sugrue VJ, Szladovits B, Takahashi JS, Takasugi M, Teeling EC, Thompson MJ, Van Bonn B, Vernes SC, Villar D, Vinters HV, Wallingford MC, Wang N, Wayne RK, Wilkinson GS, Williams CK, Williams RW, Yang XW, Yao M, Young BG, Zhang B, Zhang Z, Zhao P, Zhao Y, Zhou W, Zimmermann J, Ernst J, Raj K, Horvath S. Universal DNA methylation age across mammalian tissues. Nat Aging 2023; 3:1144-1166. [PMID: 37563227 PMCID: PMC10501909 DOI: 10.1038/s43587-023-00462-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 06/21/2023] [Indexed: 08/12/2023]
Abstract
Aging, often considered a result of random cellular damage, can be accurately estimated using DNA methylation profiles, the foundation of pan-tissue epigenetic clocks. Here, we demonstrate the development of universal pan-mammalian clocks, using 11,754 methylation arrays from our Mammalian Methylation Consortium, which encompass 59 tissue types across 185 mammalian species. These predictive models estimate mammalian tissue age with high accuracy (r > 0.96). Age deviations correlate with human mortality risk, mouse somatotropic axis mutations and caloric restriction. We identified specific cytosines with methylation levels that change with age across numerous species. These sites, highly enriched in polycomb repressive complex 2-binding locations, are near genes implicated in mammalian development, cancer, obesity and longevity. Our findings offer new evidence suggesting that aging is evolutionarily conserved and intertwined with developmental processes across all mammals.
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Affiliation(s)
- A T Lu
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
| | - Z Fei
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Statistics, University of California, Riverside, Riverside, CA, USA
| | - A Haghani
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
| | - T R Robeck
- Zoological SeaWorld Parks and Entertainment, Orlando, FL, USA
| | - J A Zoller
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - C Z Li
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - R Lowe
- Altos Labs, Cambridge Institute of Science, Cambridge, UK
| | - Q Yan
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
| | - J Zhang
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - H Vu
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - J Ablaeva
- Department of Biology, University of Rochester, Rochester, NY, USA
| | - V A Acosta-Rodriguez
- Department of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - D M Adams
- Department of Biology, University of Maryland, College Park, MD, USA
| | - J Almunia
- Loro Parque Fundacion, Puerto de la Cruz, Spain
| | - A Aloysius
- Department of Biology, University of Kentucky, Lexington, KY, USA
| | - R Ardehali
- Division of Cardiology, Department of Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - A Arneson
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - C S Baker
- Marine Mammal Institute, Oregon State University, Newport, OR, USA
| | - G Banks
- School of Science and Technology, Clifton Campus, Nottingham Trent University, Nottingham, UK
| | - K Belov
- School of Life and Environmental Sciences, the University of Sydney, Sydney, New South Wales, Australia
| | - N C Bennett
- Department of Zoology and Entomology, University of Pretoria, Hatfield, South Africa
| | - P Black
- Busch Gardens Tampa, Tampa, FL, USA
| | - D T Blumstein
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, USA
- Rocky Mountain Biological Laboratory, Crested Butte, CO, USA
| | - E K Bors
- Marine Mammal Institute, Oregon State University, Newport, OR, USA
| | - C E Breeze
- Altius Institute for Biomedical Sciences, Seattle, WA, USA
| | - R T Brooke
- Epigenetic Clock Development Foundation, Los Angeles, CA, USA
| | - J L Brown
- Center for Species Survival, Smithsonian Conservation Biology Institute, Front Royal, VA, USA
| | - G G Carter
- Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH, USA
| | - A Caulton
- AgResearch, Invermay Agricultural Centre, Mosgiel, New Zealand
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - J M Cavin
- Gulf World, Dolphin Company, Panama City Beach, FL, USA
| | - L Chakrabarti
- School of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK
| | - I Chatzistamou
- Department of Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, SC, USA
| | - H Chen
- Department of Pharmacology, Addiction Science and Toxicology, the University of Tennessee Health Science Center, Memphis, TN, USA
| | - K Cheng
- Medical Informatics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - P Chiavellini
- Biochemistry Research Institute of La Plata, Histology and Pathology, School of Medicine, University of La Plata, La Plata, Argentina
| | - O W Choi
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - S M Clarke
- AgResearch, Invermay Agricultural Centre, Mosgiel, New Zealand
| | - L N Cooper
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, OH, USA
| | - M L Cossette
- Department of Environmental and Life Sciences, Trent University, Peterborough, Ontario, Canada
| | - J Day
- Taronga Institute of Science and Learning, Taronga Conservation Society Australia, Mosman, New South Wales, Australia
| | - J DeYoung
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - S DiRocco
- SeaWorld of Florida, Orlando, FL, USA
| | - C Dold
- Zoological Operations, SeaWorld Parks and Entertainment, Orlando, FL, USA
| | | | - C K Emmons
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, USA
| | - S Emmrich
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - E Erbay
- Altos Labs, San Francisco, CA, USA
| | - C Erlacher-Reid
- SeaWorld of Florida, Orlando, FL, USA
- SeaWorld Orlando, Orlando, FL, USA
| | - C G Faulkes
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, UK
| | - S H Ferguson
- Fisheries and Oceans Canada, Freshwater Institute, Winnipeg, Manitoba, Canada
- Department of Biological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - C J Finno
- Department of Population Health and Reproduction, University of California, Davis School of Veterinary Medicine, Davis, CA, USA
| | | | - J M Gaillard
- Universite de Lyon, Universite Lyon 1, CNRS, Laboratoire de Biometrie et Biologie Evolutive, Villeurbanne, France
| | - E Garde
- Greenland Institute of Natural Resources, Nuuk, Greenland
| | - L Gerber
- Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - V N Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - V Gorbunova
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - R G Goya
- Biochemistry Research Institute of La Plata, Histology and Pathology, School of Medicine, University of La Plata, La Plata, Argentina
| | - M J Grant
- Applied Translational Genetics Group, School of Biological Sciences, Centre for Brain Research, the University of Auckland, Auckland, New Zealand
| | - C B Green
- Department of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - E N Hales
- Department of Population Health and Reproduction, University of California, Davis School of Veterinary Medicine, Davis, CA, USA
| | - M B Hanson
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, USA
| | - D W Hart
- Department of Zoology and Entomology, University of Pretoria, Hatfield, South Africa
| | - M Haulena
- Vancouver Aquarium, Vancouver, British Columbia, Canada
| | - K Herrick
- SeaWorld of California, San Diego, CA, USA
| | - A N Hogan
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - C J Hogg
- School of Life and Environmental Sciences, the University of Sydney, Sydney, New South Wales, Australia
| | - T A Hore
- Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - T Huang
- Division of Human Genetics, Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
- Division of Genetics and Metabolism, Oishei Children's Hospital, Buffalo, NY, USA
| | | | - A J Jasinska
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - G Jones
- School of Biological Sciences, University of Bristol, Bristol, UK
| | | | - O Kashpur
- Mother Infant Research Institute, Tufts Medical Center, Boston, MA, USA
| | - H Katcher
- Yuvan Research, Mountain View, CA, USA
| | | | - V Kaza
- Peromyscus Genetic Stock Center, University of South Carolina, Columbia, SC, USA
| | - H Kiaris
- Peromyscus Genetic Stock Center, University of South Carolina, Columbia, SC, USA
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, USA
| | - M S Kobor
- Edwin S.H. Leong Healthy Aging Program, Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada
| | - P Kordowitzki
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Olsztyn, Poland
- Institute for Veterinary Medicine, Nicolaus Copernicus University, Torun, Poland
| | - W R Koski
- LGL Limited, King City, Ontario, Canada
| | - M Krützen
- Evolutionary Genetics Group, Department of Evolutionary Anthropology, University of Zurich, Zurich, Switzerland
| | - S B Kwon
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - B Larison
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
- Center for Tropical Research, Institute for the Environment and Sustainability, UCLA, Los Angeles, CA, USA
| | - S G Lee
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - M Lehmann
- Biochemistry Research Institute of La Plata, Histology and Pathology, School of Medicine, University of La Plata, La Plata, Argentina
| | - J F Lemaitre
- Universite de Lyon, Universite Lyon 1, CNRS, Laboratoire de Biometrie et Biologie Evolutive, Villeurbanne, France
| | - A J Levine
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - C Li
- Texas Pregnancy and Life-course Health Center, Southwest National Primate Research Center, San Antonio, TX, USA
- Department of Animal Science, College of Agriculture and Natural Resources, Laramie, WY, USA
| | - X Li
- Technology Center for Genomics and Bioinformatics, Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - A R Lim
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - D T S Lin
- Centre for Molecular Medicine and Therapeutics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - T J Little
- Institute of Ecology and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - N Macoretta
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - D Maddox
- White Oak Conservation, Yulee, FL, USA
| | - C O Matkin
- North Gulf Oceanic Society, Homer, AK, USA
| | - J A Mattison
- Translational Gerontology Branch, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD, USA
| | | | - J Mergl
- Marineland of Canada, Niagara Falls, Ontario, Canada
| | - J J Meudt
- Biomedical and Genomic Research Group, Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, WI, USA
| | - G A Montano
- Zoological Operations, SeaWorld Parks and Entertainment, Orlando, FL, USA
| | - K Mozhui
- Department of Preventive Medicine, University of Tennessee Health Science Center, College of Medicine, Memphis, TN, USA
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, College of Medicine, Memphis, TN, USA
| | - J Munshi-South
- Louis Calder Center-Biological Field Station, Department of Biological Sciences, Fordham University, Armonk, NY, USA
| | - A Naderi
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, USA
| | - M Nagy
- Museum fur Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany
| | - P Narayan
- Applied Translational Genetics Group, School of Biological Sciences, Centre for Brain Research, the University of Auckland, Auckland, New Zealand
| | - P W Nathanielsz
- Texas Pregnancy and Life-course Health Center, Southwest National Primate Research Center, San Antonio, TX, USA
- Department of Animal Science, College of Agriculture and Natural Resources, Laramie, WY, USA
| | - N B Nguyen
- Division of Cardiology, Department of Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - C Niehrs
- Institute of Molecular Biology, Mainz, Germany
- Division of Molecular Embryology, DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - J K O'Brien
- Taronga Institute of Science and Learning, Taronga Conservation Society Australia, Mosman, New South Wales, Australia
| | - P O'Tierney Ginn
- Mother Infant Research Institute, Tufts Medical Center, Boston, MA, USA
- Department of Obstetrics and Gynecology, Tufts University School of Medicine, Boston, MA, USA
| | - D T Odom
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
- Division of Regulatory Genomics and Cancer Evolution, Deutsches Krebsforschungszentrum, Heidelberg, Germany
| | - A G Ophir
- Department of Psychology, Cornell University, Ithaca, NY, USA
| | - S Osborn
- SeaWorld of Texas, San Antonio, TX, USA
| | - E A Ostrander
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - K M Parsons
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, USA
| | - K C Paul
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - M Pellegrini
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - K J Peters
- Evolutionary Genetics Group, Department of Evolutionary Anthropology, University of Zurich, Zurich, Switzerland
- School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, Australia
| | - A B Pedersen
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - J L Petersen
- Department of Animal Science, University of Nebraska, Lincoln, NE, USA
| | - D W Pietersen
- Mammal Research Institute, Department of Zoology and Entomology, University of Pretoria, Hatfield, South Africa
| | - G M Pinho
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
| | - J Plassais
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - J R Poganik
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - N A Prado
- Department of Biology, College of Arts and Science, Adelphi University, Garden City, NY, USA
| | - P Reddy
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA
- Salk Institute for Biological Studies, La Jolla, CA, USA
| | - B Rey
- Universite de Lyon, Universite Lyon 1, CNRS, Laboratoire de Biometrie et Biologie Evolutive, Villeurbanne, France
| | - B R Ritz
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
- Department of Environmental Health Sciences, UCLA Fielding School of Public Health, Los Angeles, CA, USA
- Department of Neurology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - J Robbins
- Center for Coastal Studies, Provincetown, MA, USA
| | | | - J Russell
- SeaWorld of California, San Diego, CA, USA
| | - E Rydkina
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - L L Sailer
- Department of Psychology, Cornell University, Ithaca, NY, USA
| | - A B Salmon
- The Sam and Ann Barshop Institute for Longevity and Aging Studies and Department of Molecular Medicine, UT Health San Antonio and the Geriatric Research Education and Clinical Center, South Texas Veterans Healthcare System, San Antonio, TX, USA
| | | | - K M Schachtschneider
- Department of Radiology, University of Illinois at Chicago, Chicago, IL, USA
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, IL, USA
- National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - D Schmitt
- College of Agriculture, Missouri State University, Springfield, MO, USA
| | - T Schmitt
- SeaWorld of California, San Diego, CA, USA
| | | | - L B Schook
- Department of Radiology, University of Illinois at Chicago, Chicago, IL, USA
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - K E Sears
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - A W Seifert
- Department of Biology, University of Kentucky, Lexington, KY, USA
| | - A Seluanov
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - A B A Shafer
- Department of Forensic Science, Environmental and Life Sciences, Trent University, Peterborough, Ontario, Canada
| | - D Shanmuganayagam
- Biomedical and Genomic Research Group, Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, WI, USA
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - A V Shindyapina
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - K Singh
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS University, Mumbai, India
| | - I Sinha
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
| | - J Slone
- Division of Human Genetics, Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
| | - R G Snell
- Applied Translational Genetics Group, School of Biological Sciences, Centre for Brain Research, the University of Auckland, Auckland, New Zealand
| | - E Soltanmaohammadi
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC, USA
| | - M L Spangler
- Department of Animal Science, University of Nebraska, Lincoln, NE, USA
| | | | - L Staggs
- SeaWorld of Florida, Orlando, FL, USA
| | | | - K J Steinman
- Species Preservation Laboratory, SeaWorld San Diego, San Diego, CA, USA
| | - D T Stewart
- Biology Department, Acadia University, Wolfville, Nova Scotia, Canada
| | - V J Sugrue
- Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - B Szladovits
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, UK
| | - J S Takahashi
- Department of Neuroscience, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Howard Hughes Medical Institute, Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - M Takasugi
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - E C Teeling
- School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | - M J Thompson
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - B Van Bonn
- John G. Shedd Aquarium, Chicago, IL, USA
| | - S C Vernes
- School of Biology, the University of St Andrews, Fife, UK
- Neurogenetics of Vocal Communication Group, Max Planck Institute for Psycholinguistics, Nijmegen, the Netherlands
| | - D Villar
- Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - H V Vinters
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - M C Wallingford
- Mother Infant Research Institute, Tufts Medical Center, Boston, MA, USA
- Division of Obstetrics and Gynecology, Tufts University School of Medicine, Boston, MA, USA
| | - N Wang
- Center for Neurobehavioral Genetics, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - R K Wayne
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, CA, USA
| | - G S Wilkinson
- Department of Biology, University of Maryland, College Park, MD, USA
| | - C K Williams
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - R W Williams
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, College of Medicine, Memphis, TN, USA
| | - X W Yang
- Center for Neurobehavioral Genetics, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - M Yao
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - B G Young
- Fisheries and Oceans Canada, Winnipeg, Manitoba, Canada
| | - B Zhang
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Z Zhang
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - P Zhao
- Division of Cardiology, Department of Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA, USA
| | - Y Zhao
- Departments of Biology and Medicine, University of Rochester, Rochester, NY, USA
| | - W Zhou
- Center for Computational and Genomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - J Zimmermann
- Department of Mathematics and Technology, University of Applied Sciences Koblenz, Koblenz, Germany
| | - J Ernst
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - K Raj
- Altos Labs, Cambridge Institute of Science, Cambridge, UK
| | - S Horvath
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
- Altos Labs, San Diego Institute of Science, San Diego, CA, USA.
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA.
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Barth U, Lehmann M, Tautenhahn J, Meyer F, Halloul Z. [Outpatient and "Admission-Substituting" Interventions in Vascular Surgery - What is Feasible and Where are the Limits? Previous and New Legal Requirements and their Implementation in Practice]. Zentralbl Chir 2023. [PMID: 37562434 DOI: 10.1055/a-2100-1458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
INTRODUCTION In vascular surgery too, more services and procedures will have to be shifted from the previous inpatient to the outpatient sector in the future. Therefore, the previous and new legal requirements as well as their implementation in vascular surgery will be explained and evaluated. MATERIAL AND METHODS Professional policy analysis from a perspective of medical vascular surgery. RESULTS The AOP catalog from 01.01.2023 was extended by 208 additional OPS codes. The inpatient performance of services which, according to the AOP contract, must be regularly performed on an outpatient basis, are now to be justified on the basis of context factors.A special sector-equivalent remuneration, which is independent of whether the remunerated service is performed on an outpatient or inpatient basis, is a prerequisite for a cost-covering expansion of outpatient operations and inpatient-replacing services. The rehabilitation of primary varicosis under outpatient conditions is undoubtedly the standard. The majority of AV shunt installations are performed as inpatient procedures. No new OPS codes were added to the 2023 AOP catalog for varicose vein, shunt and endovascular surgery. DISCUSSION The shift of inpatient services to the outpatient sector can be a feasible path, based on the experience of other European countries. However, the structures, economic conditions and incentives should first be created to successfully promote transfer to outpatients. Integrated care offers the possibility for the health insurance funds to conclude contracts with the service providers named in § 140a of the Social Code, paragraph 3, for special care. The use of telemedicine in the sense of tele-premedication or tele-monitoring can be a way to expand outpatient surgery, especially in rural regions. In order to enable therapy concepts from one expert in vascular medicine, the outpatient service billing of interventional procedures must also be demanded by vascular surgeons and specialists. CONCLUSION The potential to transform inpatient services into the outpatient setting of service provision is realisable in vascular surgery in the core areas of varicose vein surgery, shunt surgery and peripheral interventional procedures under specific conditions.
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Affiliation(s)
- Udo Barth
- Klinik für Allgemein-, Viszeral- und Gefäßchirurgie, Helios Klinik Jerichower Land Burg, Burg, Deutschland
| | - Martin Lehmann
- Klinik für Allgemein-, Viszeral- und Gefäßchirurgie, Helios Klinik Jerichower Land Burg, Burg, Deutschland
| | - Jörg Tautenhahn
- Klinik für Gefäßchirurgie, Klinikum Magdeburg gGmbH, Magdeburg, Deutschland
| | - Frank Meyer
- Klinik für Allgemein-, Viszeral-, Gefäß- und Transplantationschirurgie, Universitätsklinikum Magdeburg A.ö.R., Magdeburg, Deutschland
| | - Zuhir Halloul
- Arbeitsbereich Gefäßchirurgie, Klinik für Allgemein-, Viszeral-, Gefäß- und Transplantationschirurgie, Universitätsklinikum Magdeburg, Magdeburg, Deutschland
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Papin L, Lehmann M, Lagisquet J, Maarifi G, Robert-Hebmann V, Mariller C, Guerardel Y, Espert L, Haucke V, Blanchet FP. The Autophagy Nucleation Factor ATG9 Forms Nanoclusters with the HIV-1 Receptor DC-SIGN and Regulates Early Antiviral Autophagy in Human Dendritic Cells. Int J Mol Sci 2023; 24:ijms24109008. [PMID: 37240354 DOI: 10.3390/ijms24109008] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Dendritic cells (DC) are critical cellular mediators of host immunity, notably by expressing a broad panel of pattern recognition receptors. One of those receptors, the C-type lectin receptor DC-SIGN, was previously reported as a regulator of endo/lysosomal targeting through functional connections with the autophagy pathway. Here, we confirmed that DC-SIGN internalization intersects with LC3+ autophagy structures in primary human monocyte-derived dendritic cells (MoDC). DC-SIGN engagement promoted autophagy flux which coincided with the recruitment of ATG-related factors. As such, the autophagy initiation factor ATG9 was found to be associated with DC-SIGN very early upon receptor engagement and required for an optimal DC-SIGN-mediated autophagy flux. The autophagy flux activation upon DC-SIGN engagement was recapitulated using engineered DC-SIGN-expressing epithelial cells in which ATG9 association with the receptor was also confirmed. Finally, Stimulated emission depletion (STED) microscopy performed in primary human MoDC revealed DC-SIGN-dependent submembrane nanoclusters formed with ATG9, which was required to degrade incoming viruses and further limit DC-mediated transmission of HIV-1 infection to CD4+ T lymphocytes. Our study unveils a physical association between the Pattern Recognition Receptor DC-SIGN and essential components of the autophagy pathway contributing to early endocytic events and the host's antiviral immune response.
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Affiliation(s)
- Laure Papin
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Justine Lagisquet
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Ghizlane Maarifi
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Véronique Robert-Hebmann
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Christophe Mariller
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France
| | - Yann Guerardel
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France
- Institute for Glyco-Core Research (iGCORE), Gifu University, Gifu 501-1112, Japan
| | - Lucile Espert
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
| | - Volker Haucke
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Fabien P Blanchet
- Institut de Recherche en Infectiologie de Montpellier-IRIM-CNRS UMR9004, University of Montpellier, 34090 Montpellier, France
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19
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Weindl PN, Weindl PA, Schmidt E, Pleger L, Messinger D, Aulrich K, Schade B, Lehmann M, Bellof G. Photosensitisation and green egg yolks in laying hens caused by the feeding of ensiled alfalfa leaves. Br Poult Sci 2023; 64:242-251. [PMID: 36259558 DOI: 10.1080/00071668.2022.2137387] [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: 09/29/2021] [Accepted: 09/17/2022] [Indexed: 11/02/2022]
Abstract
1. The present study was carried out to determine the effects of feeding ensiled alfalfa leaves (ALS) as an alternative protein source to laying hens under the terms of an organic diet. Due to the occurrence of unexpected negative health effects and undesirable egg yolk pigmentation in the test groups the trial was prematurely stopped and further analysis was conducted to evaluate the responsible substances.2. Body weights of the test groups decreased significantly already in week 2 of the trial. Performance variables dropped. Olive green pigmented egg yolks were found in groups fed diets containing ALS. Severe comb necrosis occurred in the experimental group receiving the highest level of ALS (20%) combined with the option of free-range access and therefore natural light exposure.3. The noxious agent found in ALS, blood serum and egg yolk was the photosensitising chlorophyll derivate pheophorbid a (PPBa), deriving from a strong depletion of chlorophyll contained in the alfalfa leaves. PPBa caused the olive-green pigmentation found in yolks and led to photosensitivity in groups with the highest level of ALS in the diet in combination with light exposure.4. By aiming for high protein and amino acid levels, harvesting and processing have, unintentionally and initially unnoticed, led to a strong accumulation of phototoxic PPBa. From these results it is strongly advised not to include ensiled alfalfa leaves as a protein source in organic laying hen diets.
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Affiliation(s)
- P N Weindl
- Faculty of Sustainable Agriculture and Energy Systems, University of Applied Sciences Weihenstephan-Triesdorf, Freising, Germany
| | - P A Weindl
- Faculty of Sustainable Agriculture and Energy Systems, University of Applied Sciences Weihenstephan-Triesdorf, Freising, Germany
| | - E Schmidt
- Faculty of Sustainable Agriculture and Energy Systems, University of Applied Sciences Weihenstephan-Triesdorf, Freising, Germany
| | - L Pleger
- Faculty of Sustainable Agriculture and Energy Systems, University of Applied Sciences Weihenstephan-Triesdorf, Freising, Germany
| | - D Messinger
- Faculty of Sustainable Agriculture and Energy Systems, University of Applied Sciences Weihenstephan-Triesdorf, Freising, Germany
| | - K Aulrich
- Institute of Organic Farming, Johann Heinrich von Thünen Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries, Westerau, Germany
| | - B Schade
- Department of Pathology, Bavarian Animal Health Services, Poing, Germany
| | - M Lehmann
- Department of Biology and Plant Sciences, Ludwig Maximilians-University München, Munich, Germany
| | - G Bellof
- Faculty of Sustainable Agriculture and Energy Systems, University of Applied Sciences Weihenstephan-Triesdorf, Freising, Germany
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20
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Bauer K, Nayem S, Lehmann M, Wenig M, Shu LJ, Ranf S, Geigenberger P, Vlot AC. β-D-XYLOSIDASE 4 modulates systemic immune signaling in Arabidopsis thaliana. Front Plant Sci 2023; 13:1096800. [PMID: 36816482 PMCID: PMC9931724 DOI: 10.3389/fpls.2022.1096800] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 12/28/2022] [Indexed: 06/18/2023]
Abstract
Pectin- and hemicellulose-associated structures of plant cell walls participate in defense responses against pathogens of different parasitic lifestyles. The resulting immune responses incorporate phytohormone signaling components associated with salicylic acid (SA) and jasmonic acid (JA). SA plays a pivotal role in systemic acquired resistance (SAR), a form of induced resistance that - after a local immune stimulus - confers long-lasting, systemic protection against a broad range of biotrophic invaders. β-D-XYLOSIDASE 4 (BXL4) protein accumulation is enhanced in the apoplast of plants undergoing SAR. Here, two independent Arabidopsis thaliana mutants of BXL4 displayed compromised systemic defenses, while local resistance responses to Pseudomonas syringae remained largely intact. Because both phloem-mediated and airborne systemic signaling were abrogated in the mutants, the data suggest that BXL4 is a central component in SAR signaling mechanisms. Exogenous xylose, a possible product of BXL4 enzymatic activity in plant cell walls, enhanced systemic defenses. However, GC-MS analysis of SAR-activated plants revealed BXL4-associated changes in the accumulation of certain amino acids and soluble sugars, but not xylose. In contrast, the data suggest a possible role of pectin-associated fucose as well as of the polyamine putrescine as regulatory components of SAR. This is the first evidence of a central role of cell wall metabolic changes in systemic immunity. Additionally, the data reveal a so far unrecognized complexity in the regulation of SAR, which might allow the design of (crop) plant protection measures including SAR-associated cell wall components.
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Affiliation(s)
- Kornelia Bauer
- Department of Environmental Science, Institute of Biochemical Plant Pathology, Helmholtz Munich, Neuherberg, Germany
| | - Shahran Nayem
- Department of Environmental Science, Institute of Biochemical Plant Pathology, Helmholtz Munich, Neuherberg, Germany
| | - Martin Lehmann
- Faculty of Biology, Ludwig-Maximilians University of Munich, Munich, Germany
| | - Marion Wenig
- Department of Environmental Science, Institute of Biochemical Plant Pathology, Helmholtz Munich, Neuherberg, Germany
| | - Lin-Jie Shu
- TUM School of Life Sciences Weihenstephan, Chair of Phytopathology, Technical University of Munich, Freising, Germany
| | - Stefanie Ranf
- TUM School of Life Sciences Weihenstephan, Chair of Phytopathology, Technical University of Munich, Freising, Germany
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Peter Geigenberger
- Faculty of Biology, Ludwig-Maximilians University of Munich, Munich, Germany
| | - A. Corina Vlot
- Department of Environmental Science, Institute of Biochemical Plant Pathology, Helmholtz Munich, Neuherberg, Germany
- Faculty of Life Sciences: Food, Nutrition, and Health, Chair of Crop Plant Genetics, University of Bayreuth, Kulmbach, Germany
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21
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Tergast TL, Protzer U, Zeuzem S, Heitmann L, Sarrazin C, Lehmann M, Ingiliz P, Cornberg M, Zimmermann R, Gerlich MG, Buggisch P, Wiebner B, Wedemeyer H. [Strategietreffen: Virushepatitis in Deutschland eliminieren]. Z Gastroenterol 2023; 61:198-201. [PMID: 36736343 PMCID: PMC9897951 DOI: 10.1055/a-1978-9021] [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: 02/05/2023]
Affiliation(s)
- T L Tergast
- Klinik für Gastroenterologie, Hepatologie und Endokrinologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover
| | - U Protzer
- Institut für Virologie, Technische Universität München/Helmholtz Zentrum München, München
| | - S Zeuzem
- Medizinische Klinik I Gastroenterologie, Hepatologie, Pneumologie, Endokrinologie, Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - L Heitmann
- Mitglied des deutschen Bundestages, Platz der Republik 1, 11011 Berlin
| | - C Sarrazin
- Medizinische Klinik II, Innere Medizin, St. Josefs-Hospital Wiesbaden, Germany
| | - M Lehmann
- Justizvollzugskrankenhaus JVA Plötzensee, Saatwinkler Damm 1A, 13627 Berlin, Germany
| | - P Ingiliz
- Hôpitaux Universitaires Henri Mondor
| | - M Cornberg
- Klinik für Gastroenterologie, Hepatologie und Endokrinologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover
- Deutsche Leberstiftung, Hannover, Germany
| | - R Zimmermann
- Abteilung für Infektionsepidemiologie, Robert Koch-Institut, Berlin, Germany
| | - M G Gerlich
- Bundeszentrale für gesundheitliche Aufklärung, Köln
| | - P Buggisch
- ifi-Institut für interdisziplinäre Medizin, Hamburg
| | - B Wiebner
- Deutsche Leberstiftung, Hannover, Germany
| | - H Wedemeyer
- Klinik für Gastroenterologie, Hepatologie und Endokrinologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover
- Deutsche Leberstiftung, Hannover, Germany
- Hepatitis B and C Public Policy Association (HepBCPPA)
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22
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Trumpp M, Oliveras A, Gonschior H, Ast J, Hodson DJ, Knaus P, Lehmann M, Birol M, Broichhagen J. Enzyme self-label-bound ATTO700 in single-molecule and super-resolution microscopy. Chem Commun (Camb) 2022; 58:13724-13727. [PMID: 36427021 DOI: 10.1039/d2cc04823j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Herein, we evaluate near-infrared ATTO700 as an acceptor in SNAP- and Halo-tag protein labelling for Förster Resonance Energy Transfer (FRET) by ensemble and single molecule measurements. Microscopy of cell surface proteins in live cells is perfomed including super-resolution stimulated emission by depletion (STED) nanoscopy.
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Affiliation(s)
- Michael Trumpp
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany. .,Freie Universität Berlin, Institute of Chemistry and Biochemistry - Biochemistry, Thielallee 63, 14195 Berlin, Germany
| | - Anna Oliveras
- Berlin Institute of Medical Systems Biology (BIMSB), Max Delbrück Center for Molecular Medicine, Hannoversche Str. 28, 10115 Berlin, Germany.
| | - Hannes Gonschior
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany.
| | - Julia Ast
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
| | - David J Hodson
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 7LE, UK
| | - Petra Knaus
- Freie Universität Berlin, Institute of Chemistry and Biochemistry - Biochemistry, Thielallee 63, 14195 Berlin, Germany
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany.
| | - Melissa Birol
- Berlin Institute of Medical Systems Biology (BIMSB), Max Delbrück Center for Molecular Medicine, Hannoversche Str. 28, 10115 Berlin, Germany.
| | - Johannes Broichhagen
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Str. 10, 13125 Berlin, Germany.
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23
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Ercu M, Mücke MB, Pallien T, Markó L, Sholokh A, Schächterle C, Aydin A, Kidd A, Walter S, Esmati Y, McMurray BJ, Lato DF, Yumi Sunaga-Franze D, Dierks PH, Flores BIM, Walker-Gray R, Gong M, Merticariu C, Zühlke K, Russwurm M, Liu T, Batolomaeus TUP, Pautz S, Schelenz S, Taube M, Napieczynska H, Heuser A, Eichhorst J, Lehmann M, Miller DC, Diecke S, Qadri F, Popova E, Langanki R, Movsesian MA, Herberg FW, Forslund SK, Müller DN, Borodina T, Maass PG, Bähring S, Hübner N, Bader M, Klussmann E. Mutant Phosphodiesterase 3A Protects From Hypertension-Induced Cardiac Damage. Circulation 2022; 146:1758-1778. [PMID: 36259389 DOI: 10.1161/circulationaha.122.060210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 08/24/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Phosphodiesterase 3A (PDE3A) gain-of-function mutations cause hypertension with brachydactyly (HTNB) and lead to stroke. Increased peripheral vascular resistance, rather than salt retention, is responsible. It is surprising that the few patients with HTNB examined so far did not develop cardiac hypertrophy or heart failure. We hypothesized that, in the heart, PDE3A mutations could be protective. METHODS We studied new patients. CRISPR-Cas9-engineered rat HTNB models were phenotyped by telemetric blood pressure measurements, echocardiography, microcomputed tomography, RNA-sequencing, and single nuclei RNA-sequencing. Human induced pluripotent stem cells carrying PDE3A mutations were established, differentiated to cardiomyocytes, and analyzed by Ca2+ imaging. We used Förster resonance energy transfer and biochemical assays. RESULTS We identified a new PDE3A mutation in a family with HTNB. It maps to exon 13 encoding the enzyme's catalytic domain. All hitherto identified HTNB PDE3A mutations cluster in exon 4 encoding a region N-terminally from the catalytic domain of the enzyme. The mutations were recapitulated in rat models. Both exon 4 and 13 mutations led to aberrant phosphorylation, hyperactivity, and increased PDE3A enzyme self-assembly. The left ventricles of our patients with HTNB and the rat models were normal despite preexisting hypertension. A catecholamine challenge elicited cardiac hypertrophy in HTNB rats only to the level of wild-type rats and improved the contractility of the mutant hearts, compared with wild-type rats. The β-adrenergic system, phosphodiesterase activity, and cAMP levels in the mutant hearts resembled wild-type hearts, whereas phospholamban phosphorylation was decreased in the mutants. In our induced pluripotent stem cell cardiomyocyte models, the PDE3A mutations caused adaptive changes of Ca2+ cycling. RNA-sequencing and single nuclei RNA-sequencing identified differences in mRNA expression between wild-type and mutants, affecting, among others, metabolism and protein folding. CONCLUSIONS Although in vascular smooth muscle, PDE3A mutations cause hypertension, they confer protection against hypertension-induced cardiac damage in hearts. Nonselective PDE3A inhibition is a final, short-term option in heart failure treatment to increase cardiac cAMP and improve contractility. Our data argue that mimicking the effect of PDE3A mutations in the heart rather than nonselective PDE3 inhibition is cardioprotective in the long term. Our findings could facilitate the search for new treatments to prevent hypertension-induced cardiac damage.
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Affiliation(s)
- Maria Ercu
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
| | - Michael B Mücke
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (M.B.M., L.M., A.S., Y.E., T.U.P.B., S.K.F., S.B., N.H., M.B.)
| | - Tamara Pallien
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
| | - Lajos Markó
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (M.B.M., L.M., A.S., Y.E., T.U.P.B., S.K.F., S.B., N.H., M.B.)
- Experimental and Clinical Research Center, a cooperation between the Max-Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité Universitätsmedizin Berlin, Germany (L.M., Y.E., M.G., T.U.P.B., S.K.F., D.N.M., S.B.)
| | - Anastasiia Sholokh
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (M.B.M., L.M., A.S., Y.E., T.U.P.B., S.K.F., S.B., N.H., M.B.)
| | - Carolin Schächterle
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Atakan Aydin
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Alexa Kidd
- Clinical Genetics Ltd, Christchurch, New Zealand (A.K.)
| | | | - Yasmin Esmati
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (M.B.M., L.M., A.S., Y.E., T.U.P.B., S.K.F., S.B., N.H., M.B.)
- Experimental and Clinical Research Center, a cooperation between the Max-Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité Universitätsmedizin Berlin, Germany (L.M., Y.E., M.G., T.U.P.B., S.K.F., D.N.M., S.B.)
| | - Brandon J McMurray
- Genetics and Genome Biology Program, SickKids Research Institute, Toronto, ON, Canada (B.J.M., D.F.L., P.G.M.)
| | - Daniella F Lato
- Genetics and Genome Biology Program, SickKids Research Institute, Toronto, ON, Canada (B.J.M., D.F.L., P.G.M.)
| | - Daniele Yumi Sunaga-Franze
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Philip H Dierks
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Barbara Isabel Montesinos Flores
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Ryan Walker-Gray
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Maolian Gong
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- Experimental and Clinical Research Center, a cooperation between the Max-Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité Universitätsmedizin Berlin, Germany (L.M., Y.E., M.G., T.U.P.B., S.K.F., D.N.M., S.B.)
| | - Claudia Merticariu
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Kerstin Zühlke
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Michael Russwurm
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät MA N1, Ruhr-Universität Bochum, Germany (M.R.)
| | - Tiannan Liu
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Theda U P Batolomaeus
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (M.B.M., L.M., A.S., Y.E., T.U.P.B., S.K.F., S.B., N.H., M.B.)
- Experimental and Clinical Research Center, a cooperation between the Max-Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité Universitätsmedizin Berlin, Germany (L.M., Y.E., M.G., T.U.P.B., S.K.F., D.N.M., S.B.)
| | - Sabine Pautz
- Department of Biochemistry, University of Kassel, Germany (S.P., F.W.H.)
| | - Stefanie Schelenz
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Martin Taube
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Hanna Napieczynska
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Arnd Heuser
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Jenny Eichhorst
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany (J.E., M.L.)
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany (J.E., M.L.)
| | - Duncan C Miller
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
| | - Sebastian Diecke
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Berlin Institute of Health (BIH), Germany (S.D., S.K.F.)
| | - Fatimunnisa Qadri
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Elena Popova
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Reika Langanki
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | | | | | - Sofia K Forslund
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (M.B.M., L.M., A.S., Y.E., T.U.P.B., S.K.F., S.B., N.H., M.B.)
- Experimental and Clinical Research Center, a cooperation between the Max-Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité Universitätsmedizin Berlin, Germany (L.M., Y.E., M.G., T.U.P.B., S.K.F., D.N.M., S.B.)
- Berlin Institute of Health (BIH), Germany (S.D., S.K.F.)
- European Molecular Biology Laboratory, Structural and Computational Biology Unit, Heidelberg, Germany (S.K.F.)
| | - Dominik N Müller
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Experimental and Clinical Research Center, a cooperation between the Max-Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité Universitätsmedizin Berlin, Germany (L.M., Y.E., M.G., T.U.P.B., S.K.F., D.N.M., S.B.)
| | - Tatiana Borodina
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
| | - Philipp G Maass
- Genetics and Genome Biology Program, SickKids Research Institute, Toronto, ON, Canada (B.J.M., D.F.L., P.G.M.)
- Department of Molecular Genetics, University of Toronto, ON, Canada (P.G.M.)
| | - Sylvia Bähring
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (M.B.M., L.M., A.S., Y.E., T.U.P.B., S.K.F., S.B., N.H., M.B.)
- Experimental and Clinical Research Center, a cooperation between the Max-Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité Universitätsmedizin Berlin, Germany (L.M., Y.E., M.G., T.U.P.B., S.K.F., D.N.M., S.B.)
| | - Norbert Hübner
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (M.B.M., L.M., A.S., Y.E., T.U.P.B., S.K.F., S.B., N.H., M.B.)
| | - Michael Bader
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (M.B.M., L.M., A.S., Y.E., T.U.P.B., S.K.F., S.B., N.H., M.B.)
- Institute for Biology, University of Lübeck, Germany (M.B.)
| | - Enno Klussmann
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany (M.E., M.B.M., T.P., A.S., C.S., A.A., D.Y.S.-F., P.H.D., B.I.M.F., R.W.-G., M.G., C.M., K.Z., T.L., S.S., M.T., H.N., A.H., D.C.M., S.D., F.Q., E.P., R.L., S.K.F., D.N.M., T.B., S.B., N.H., M.B., E.K.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (M.E., M.B.M., T.P., L.M., A.S., Y.E., T.U.P.B., D.C.M., S.D., S.K.F., D.N.M., N.H., M.B., E.K.)
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Matthaeus C, Sochacki KA, Dickey AM, Puchkov D, Haucke V, Lehmann M, Taraska JW. The molecular organization of differentially curved caveolae indicates bendable structural units at the plasma membrane. Nat Commun 2022; 13:7234. [PMID: 36433988 PMCID: PMC9700719 DOI: 10.1038/s41467-022-34958-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 04/14/2022] [Accepted: 11/11/2022] [Indexed: 11/27/2022] Open
Abstract
Caveolae are small coated plasma membrane invaginations with diverse functions. Caveolae undergo curvature changes. Yet, it is unclear which proteins regulate this process. To address this gap, we develop a correlative stimulated emission depletion (STED) fluorescence and platinum replica electron microscopy imaging (CLEM) method to image proteins at single caveolae. Caveolins and cavins are found at all caveolae, independent of curvature. EHD2 is detected at both low and highly curved caveolae. Pacsin2 associates with low curved caveolae and EHBP1 with mostly highly curved caveolae. Dynamin is absent from caveolae. Cells lacking dynamin show no substantial changes to caveolae, suggesting that dynamin is not directly involved in caveolae curvature. We propose a model where caveolins, cavins, and EHD2 assemble as a cohesive structural unit regulated by intermittent associations with pacsin2 and EHBP1. These coats can flatten and curve to enable lipid traffic, signaling, and changes to the surface area of the cell.
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Affiliation(s)
- Claudia Matthaeus
- grid.279885.90000 0001 2293 4638Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD USA
| | - Kem A. Sochacki
- grid.279885.90000 0001 2293 4638Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD USA
| | - Andrea M. Dickey
- grid.279885.90000 0001 2293 4638Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD USA
| | - Dmytro Puchkov
- grid.418832.40000 0001 0610 524XLeibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
| | - Volker Haucke
- grid.418832.40000 0001 0610 524XLeibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany ,grid.14095.390000 0000 9116 4836Faculty of Biology, Chemistry and Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Martin Lehmann
- grid.418832.40000 0001 0610 524XLeibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
| | - Justin W. Taraska
- grid.279885.90000 0001 2293 4638Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD USA
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25
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Kaur M, Luce J, Mostafavi H, Lehmann M, Morf D, Zhu L, Kang H, Walczak M, Harkenrider M, Roeske J. Evaluation of Markerless Tumor Tracking Using Synthetic Dual Energy Images Produced Using a Convolutional Neural Network. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2201] [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: 10/31/2022]
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Abstract
BACKGROUND Acutely occurring organ damage significantly contributes to morbidity and mortality in the perioperative context. OBJECTIVE This article highlights new clinical perspectives on how perioperative organ damage can be prevented and ameliorated by influencing the high mobility group box 1 protein (HMGB1) signaling. MATERIAL AND METHODS A MEDLINE search was performed in the fields of clinical and basic research. The presentation of basic mechanisms of perioperative organ damage and the discussion of the importance of HMGB1 in prevention and treatment by pharmaceutical and nonpharmaceutical interventions are the focus of the review. RESULTS The HMGB1 is a central element in the pathogenesis of septic and aseptic inflammation-induced organ damage. Remote ischemic preconditioning (RIPC) and dexmedetomidine are highly effective approaches to mitigate or prevent organ damage. CONCLUSION The RIPC and dexmedetomidine offer protective properties in ischemia-reperfusion injury as well as in inflammation-related organ damage, which are mediated by HMGB1, among others. This effectively protects the kidneys, heart, lungs, liver and brain. The application of these concepts should be considered in routine clinical practice.
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Affiliation(s)
- Martin Lehmann
- Klinik für Anästhesiologie, operative Intensivmedizin und Schmerztherapie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Deutschland
| | - Alexander Zarbock
- Klinik für Anästhesiologie, operative Intensivmedizin und Schmerztherapie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Deutschland
| | - Jan Rossaint
- Klinik für Anästhesiologie, operative Intensivmedizin und Schmerztherapie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Deutschland.
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27
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Gonschior H, Schmied C, Van der Veen RE, Eichhorst J, Himmerkus N, Piontek J, Günzel D, Bleich M, Furuse M, Haucke V, Lehmann M. Nanoscale segregation of channel and barrier claudins enables paracellular ion flux. Nat Commun 2022; 13:4985. [PMID: 36008380 PMCID: PMC9411157 DOI: 10.1038/s41467-022-32533-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 08/04/2022] [Indexed: 11/09/2022] Open
Abstract
The paracellular passage of ions and small molecules across epithelia is controlled by tight junctions, complex meshworks of claudin polymers that form tight seals between neighboring cells. How the nanoscale architecture of tight junction meshworks enables paracellular passage of specific ions or small molecules without compromising barrier function is unknown. Here we combine super-resolution stimulated emission depletion microscopy in live and fixed cells and tissues, multivariate classification of super-resolution images and fluorescence resonance energy transfer to reveal the nanoscale organization of tight junctions formed by mammalian claudins. We show that only a subset of claudins can assemble into characteristic homotypic meshworks, whereas tight junctions formed by multiple claudins display nanoscale organization principles of intermixing, integration, induction, segregation, and exclusion of strand assemblies. Interestingly, channel-forming claudins are spatially segregated from barrier-forming claudins via determinants mainly encoded in their extracellular domains also known to harbor mutations leading to human diseases. Electrophysiological analysis of claudins in epithelial cells suggests that nanoscale segregation of distinct channel-forming claudins enables barrier function combined with specific paracellular ion flux across tight junctions. Meshworks of claudin polymers control the paracellular transport and barrier properties of epithelial tight junctions. Here, the authors show different claudin nanoscale organization principles, finding that claudin segregation enables barrier formation and paracellular ion flux across tight junctions.
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Affiliation(s)
- Hannes Gonschior
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125, Berlin, Germany
| | - Christopher Schmied
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125, Berlin, Germany
| | | | - Jenny Eichhorst
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125, Berlin, Germany
| | - Nina Himmerkus
- Institute of Physiology, Christian-Albrechts-Universität zu Kiel, 24118, Kiel, Germany
| | - Jörg Piontek
- Clinical Physiology/Nutritional Medicine, Medical Department, Division of Gastroenterology, Infectiology, Rheumatology, Charité - Universitätsmedizin Berlin, 12203, Berlin, Germany
| | - Dorothee Günzel
- Clinical Physiology/Nutritional Medicine, Medical Department, Division of Gastroenterology, Infectiology, Rheumatology, Charité - Universitätsmedizin Berlin, 12203, Berlin, Germany
| | - Markus Bleich
- Institute of Physiology, Christian-Albrechts-Universität zu Kiel, 24118, Kiel, Germany
| | - Mikio Furuse
- Division of Cell Structure, National Institute for Physiological Sciences, Okazaki, Aichi, 444-8787, Japan.,Department of Physiological Sciences, School of Life Science, SOKENDAI (Graduate University for Advanced Studies), Okazaki, Aichi, 444-8585, Japan
| | - Volker Haucke
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125, Berlin, Germany.,Faculty of Biology, Chemistry and Pharmacy, Freie Universität Berlin, 14195, Berlin, Germany
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125, Berlin, Germany.
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Roßmann K, Akkaya KC, Poc P, Charbonnier C, Eichhorst J, Gonschior H, Valavalkar A, Wendler N, Cordes T, Dietzek-Ivanšić B, Jones B, Lehmann M, Broichhagen J. N-Methyl deuterated rhodamines for protein labelling in sensitive fluorescence microscopy. Chem Sci 2022; 13:8605-8617. [PMID: 35974762 PMCID: PMC9337740 DOI: 10.1039/d1sc06466e] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 06/02/2022] [Indexed: 11/21/2022] Open
Abstract
Rhodamine fluorophores are setting benchmarks in fluorescence microscopy. Herein, we report the deuterium (d12) congeners of tetramethyl(silicon)rhodamine, obtained by isotopic labelling of the four methyl groups, show improved photophysical parameters (i.e. brightness, lifetimes) and reduced chemical bleaching. We explore this finding for SNAP- and Halo-tag labelling in live cells, and highlight enhanced properties in several applications, such as fluorescence activated cell sorting, fluorescence lifetime microscopy, stimulated emission depletion nanoscopy and single-molecule Förster-resonance energy transfer. We finally extend this idea to other dye families and envision deuteration as a generalizable concept to improve existing and to develop new chemical biology probes.
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Affiliation(s)
- Kilian Roßmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Kerem C Akkaya
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Pascal Poc
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | | | - Jenny Eichhorst
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Hannes Gonschior
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Abha Valavalkar
- Leibniz Institute for Photonic Technology Jena e.V. (Leibniz-IPHT), Research Department Functional Interfaces Jena Germany
| | - Nicolas Wendler
- Physical and Synthetic Biology, Faculty of Biology, Ludwig-Maximilians-Universität München Großhaderner Str. 2-4, Planegg-Martinsried 82152 Germany
| | - Thorben Cordes
- Physical and Synthetic Biology, Faculty of Biology, Ludwig-Maximilians-Universität München Großhaderner Str. 2-4, Planegg-Martinsried 82152 Germany
| | - Benjamin Dietzek-Ivanšić
- Leibniz Institute for Photonic Technology Jena e.V. (Leibniz-IPHT), Research Department Functional Interfaces Jena Germany
| | - Ben Jones
- Section of Endocrinology and Investigative Medicine, Imperial College London London W12 0NN UK
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
| | - Johannes Broichhagen
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin Germany
- Department of Chemical Biology, Max Planck Institute for Medical Research Heidelberg Germany
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29
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Rossaint J, Meersch M, Thomas K, Mersmann S, Lehmann M, Skupski J, Tekath T, Rosenberger P, Kellum JA, Pavenstädt H, Zarbock A. Remote ischemic preconditioning causes transient cell-cycle arrest and renal protection by a NF-kB-dependent Sema5B pathway. JCI Insight 2022; 7:158523. [PMID: 35727636 PMCID: PMC9431690 DOI: 10.1172/jci.insight.158523] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 01/14/2022] [Accepted: 06/15/2022] [Indexed: 11/18/2022] Open
Abstract
Acute kidney injury increases morbidity and mortality, and previous studies have shown that remote ischemic preconditioning (RIPC) reduces the risk of acute kidney injury after cardiac surgery. RIPC increases urinary high mobility group box protein-1 (HMGB1) levels in patients, and this correlates with kidney protection. Here, we show that RIPC reduces renal ischemia-reperfusion injury and improves kidney function in mice. Mechanistically, RIPC increases HMGB1 levels in the plasma and urine, and HMGB1 binds to TLR4 on renal tubular epithelial cells, inducing transcriptomic modulation of renal tubular epithelial cells and providing renal protection, whereas TLR4 activation on nonrenal cells was shown to contribute to renal injury. This protection is mediated by activation of induction of AMPKα and NF-κB; this induction contributes to the upregulation of Sema5b, which triggers a transient, protective G1 cell cycle arrest. In cardiac surgery patients at high risk for postoperative acute kidney injury, increased HMGB1 and Sema5b levels after RIPC were associated with renal protection after surgery. The results may help to develop future clinical treatment options for acute kidney injury.
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Affiliation(s)
- Jan Rossaint
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Muenster, Münster, Germany
| | - Melanie Meersch
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Münster, Münster, Germany
| | - Katharina Thomas
- Department of Anesthesiology, Intensive Care and Pain Medicine, University of Münster, Münster, Germany
| | - Sina Mersmann
- Department of Anesthesiology, Intensive Care and Pain Medicine, University of Münster, Münster, Germany
| | - Martin Lehmann
- Department of Anesthesiology, Intensive Care and Pain Medicine, University of Münster, Münster, Germany
| | - Jennifer Skupski
- Department of Anesthesiology, Intensive Care and Pain Medicine, University of Münster, Münster, Germany
| | - Tobias Tekath
- Institute of Medical Informatics, University of Münster, Münster, Germany
| | - Peter Rosenberger
- Department of Anesthesiology and Intensive Care Medicine, Eberhard Karls University Tuebingen, Tübingen, Germany
| | - John A Kellum
- Critical Care Medicine, University of Pittsburgh, Pittsburgh, United States of America
| | - Hermann Pavenstädt
- Department of Nephrology, Internal Medicine D, University of Münster, Münster, Germany
| | - Alexander Zarbock
- Department of Anesthesiology, Intensive Care and Pain Medicine, University of Muenster, Muenster, Germany
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Azarnia Tehran D, Kochlamazashvili G, Pampaloni NP, Sposini S, Shergill JK, Lehmann M, Pashkova N, Schmidt C, Löwe D, Napieczynska H, Heuser A, Plested AJR, Perrais D, Piper RC, Haucke V, Maritzen T. Selective endocytosis of Ca 2+-permeable AMPARs by the Alzheimer's disease risk factor CALM bidirectionally controls synaptic plasticity. Sci Adv 2022; 8:eabl5032. [PMID: 35613266 PMCID: PMC9132451 DOI: 10.1126/sciadv.abl5032] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 04/05/2022] [Indexed: 06/15/2023]
Abstract
AMPA-type glutamate receptors (AMPARs) mediate fast excitatory neurotransmission, and the plastic modulation of their surface levels determines synaptic strength. AMPARs of different subunit compositions fulfill distinct roles in synaptic long-term potentiation (LTP) and depression (LTD) to enable learning. Largely unknown endocytic mechanisms mediate the subunit-selective regulation of the surface levels of GluA1-homomeric Ca2+-permeable (CP) versus heteromeric Ca2+-impermeable (CI) AMPARs. Here, we report that the Alzheimer's disease risk factor CALM controls the surface levels of CP-AMPARs and thereby reciprocally regulates LTP and LTD in vivo to modulate learning. We show that CALM selectively facilitates the endocytosis of ubiquitinated CP-AMPARs via a mechanism that depends on ubiquitin recognition by its ANTH domain but is independent of clathrin. Our data identify CALM and related ANTH domain-containing proteins as the core endocytic machinery that determines the surface levels of CP-AMPARs to bidirectionally control synaptic plasticity and modulate learning in the mammalian brain.
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Affiliation(s)
- Domenico Azarnia Tehran
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
| | - Gaga Kochlamazashvili
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
| | - Niccolò P. Pampaloni
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
- Institute of Biology, Cellular Biophysics, Humboldt Universität zu Berlin, 10115 Berlin, Germany
| | - Silvia Sposini
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, UMR 5297, Bordeaux, France
- CNRS, Interdisciplinary Institute for Neuroscience, UMR 5297, Bordeaux, France
| | - Jasmeet Kaur Shergill
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
- Department of Nanophysiology, Technische Universität Kaiserslautern, Paul-Ehrlich-Strasse 23, 67663 Kaiserslautern, Germany
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
| | - Natalya Pashkova
- Department of Molecular Physiology and Biophysics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Claudia Schmidt
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
| | - Delia Löwe
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
| | - Hanna Napieczynska
- Animal Phenotyping, Max Delbrück Center for Molecular Medicine, Robert-Roessle-Straße 10, 13125 Berlin, Germany
| | - Arnd Heuser
- Animal Phenotyping, Max Delbrück Center for Molecular Medicine, Robert-Roessle-Straße 10, 13125 Berlin, Germany
| | - Andrew J. R. Plested
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
- Institute of Biology, Cellular Biophysics, Humboldt Universität zu Berlin, 10115 Berlin, Germany
- NeuroCure Cluster of Excellence, Charité Universitätsmedizin Berlin, Virchowweg 6, 10117 Berlin, Germany
| | - David Perrais
- University of Bordeaux, Interdisciplinary Institute for Neuroscience, UMR 5297, Bordeaux, France
- CNRS, Interdisciplinary Institute for Neuroscience, UMR 5297, Bordeaux, France
| | - Robert C. Piper
- Department of Molecular Physiology and Biophysics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Volker Haucke
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
- NeuroCure Cluster of Excellence, Charité Universitätsmedizin Berlin, Virchowweg 6, 10117 Berlin, Germany
- Freie Universität Berlin, Faculty of Biology, Chemistry and Pharmacy, 14195 Berlin, Germany
| | - Tanja Maritzen
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
- Department of Nanophysiology, Technische Universität Kaiserslautern, Paul-Ehrlich-Strasse 23, 67663 Kaiserslautern, Germany
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31
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Weise C, Lehmann M, Schulz MC, Reinert S, Koos B, Weise H. Tooth agenesis in German orthodontic patients with non-syndromic craniofacial disorder: a retrospective evaluation of panoramic radiographs. Clin Oral Investig 2022; 26:5823-5832. [PMID: 35618960 PMCID: PMC9474355 DOI: 10.1007/s00784-022-04538-2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 05/03/2022] [Indexed: 11/29/2022]
Abstract
Objectives The study objective was to evaluate the tooth agenesis in German orthodontic patients with non-syndromic cleft lip and/or palate and Robin sequence compared to a control group without craniofacial disorder. Materials/methods A total of 108 panoramic radiographs were examined using the binary system of Tooth Agenesis Code (TAC) (excluding the third molar). Patients were divided into the craniofacial disorder group 1 (n = 43) and the healthy control group 2 (n = 65). Parameters such as skeletal class malformation, sex, localization of the cleft, craniofacial disorder, and interobserver reliability were assessed. Results Permanent tooth agenesis was observed in 44% of group 1 and 14% in group 2 with a statistically significant higher prevalence (p = 0.00162 (χ2)). Fourteen different TAC patterns were observed in group 1, ten of these occurring only once in separate patients. The distribution of the TAC codes in group 2 showed nine different possibilities of TAC code patterns; seven TACs were unique. In group 1, the most frequently absent teeth were the maxillary lateral incisor of the left side (30%); in group 2, the second premolar of the lower jaw on the right side (9%). Male patients with craniofacial disorder showed a higher percentage of tooth agenesis than female. Conclusion The data presented here shows a statistically significant higher prevalence of tooth agenesis in German patients with non-syndromic craniofacial disorder. Clinical relevance Radiographic evaluation enables the diagnosis of tooth agenesis. Recognizing early on the higher prevalence of tooth agenesis in patients exhibiting a craniofacial disorder is an important issue when developing long-term and comprehensive interdisciplinary treatment.
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Affiliation(s)
- C Weise
- Department of Orthodontics, University Hospital Tübingen, Osianderstr. 2-8, 72076, Tubingen, Germany.
| | - M Lehmann
- Department of Orthodontics, University Hospital Tübingen, Osianderstr. 2-8, 72076, Tubingen, Germany
| | - M C Schulz
- Department of Oral and Maxillofacial Surgery, University Hospital Tübingen, Osianderstr. 2-8, 72076, Tubingen, Germany
| | - S Reinert
- Department of Oral and Maxillofacial Surgery, University Hospital Tübingen, Osianderstr. 2-8, 72076, Tubingen, Germany
| | - B Koos
- Department of Orthodontics, University Hospital Tübingen, Osianderstr. 2-8, 72076, Tubingen, Germany
| | - H Weise
- Department of Orthodontics, University Hospital Tübingen, Osianderstr. 2-8, 72076, Tubingen, Germany
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32
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Zeziulia M, Blin S, Schmitt FW, Lehmann M, Jentsch TJ. Proton-gated anion transport governs macropinosome shrinkage. Nat Cell Biol 2022; 24:885-895. [PMID: 35590106 PMCID: PMC9203271 DOI: 10.1038/s41556-022-00912-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 04/05/2022] [Indexed: 01/25/2023]
Abstract
Intracellular organelles change their size during trafficking and maturation. This requires the transport of ions and water across their membranes. Macropinocytosis, a ubiquitous form of endocytosis of particular importance for immune and cancer cells, generates large vacuoles that can be followed optically. Shrinkage of macrophage macropinosomes depends on TPC-mediated Na+ efflux and Cl− exit through unknown channels. Relieving osmotic pressure facilitates vesicle budding, positioning osmotic shrinkage upstream of vesicular sorting and trafficking. Here we identify the missing macrophage Cl− channel as the proton-activated Cl− channel ASOR/TMEM206. ASOR activation requires Na+-mediated depolarization and luminal acidification by redundant transporters including H+-ATPases and CLC 2Cl−/H+ exchangers. As corroborated by mathematical modelling, feedback loops requiring the steep voltage and pH dependencies of ASOR and CLCs render vacuole resolution resilient towards transporter copy numbers. TMEM206 disruption increased albumin-dependent survival of cancer cells. Our work suggests a function for the voltage and pH dependence of ASOR and CLCs, provides a comprehensive model for ion-transport-dependent vacuole maturation and reveals biological roles of ASOR. Zeziulia et al. identify the proton-activated Cl− channel ASOR/TMEM206 as necessary for shrinkage of macropinosomes, which is needed for downstream sorting events.
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Affiliation(s)
- Mariia Zeziulia
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany.,Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany.,Graduate Program of the Freie Universität Berlin, Berlin, Germany
| | - Sandy Blin
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany.,Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany
| | - Franziska W Schmitt
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany.,Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany.,Graduate Program of the Humboldt Universität Berlin, Berlin, Germany
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
| | - Thomas J Jentsch
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany. .,Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany. .,NeuroCure Cluster of Excellence, Charité Universitätsmedizin, Berlin, Germany.
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33
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Matthaeus C, Sochacki K, Puchkov D, Haucke V, Lehmann M, Taraska J. From Flat to Bulb ‐ Novel Insights in Caveolae Membrane Curvature. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.0r426] [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: 11/11/2022]
Affiliation(s)
| | - Kem Sochacki
- National Heart, Lung, and Blood InstituteBethesda
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34
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Altensell J, Wartenberg R, Haferkamp I, Hassler S, Scherer V, Steensma P, Fitzpatrick TB, Sharma A, Sandoval-Ibañez O, Pribil M, Lehmann M, Leister D, Kleine T, Neuhaus HE. Loss of a pyridoxal-phosphate phosphatase rescues Arabidopsis lacking an endoplasmic reticulum ATP carrier. Plant Physiol 2022; 189:49-65. [PMID: 35139220 PMCID: PMC9070803 DOI: 10.1093/plphys/kiac048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/12/2022] [Indexed: 05/31/2023]
Abstract
The endoplasmic reticulum (ER)-located ATP/ADP-antiporter (ER-ANT1) occurs specifically in vascular plants. Structurally different transporters mediate energy provision to the ER, but the cellular function of ER-ANT1 is still unknown. Arabidopsis (Arabidopsis thaliana) mutants lacking ER-ANT1 (er-ant1 plants) exhibit a photorespiratory phenotype accompanied by high glycine levels and stunted growth, pointing to an inhibition of glycine decarboxylase (GDC). To reveal whether it is possible to suppress this marked phenotype, we exploited the power of a forward genetic screen. Absence of a so far uncharacterized member of the HaloAcid Dehalogenase (HAD)-like hydrolase family strongly suppressed the dwarf phenotype of er-ant1 plants. Localization studies suggested that the corresponding protein locates to chloroplasts, and activity assays showed that the enzyme dephosphorylates, with high substrate affinity, the B6 vitamer pyridoxal 5'-phosphate (PLP). Additional physiological experiments identified imbalances in vitamin B6 homeostasis in er-ant1 mutants. Our data suggest that impaired chloroplast metabolism, but not decreased GDC activity, causes the er-ant1 mutant dwarf phenotype. We present a hypothesis, setting transport of PLP by ER-ANT1 and chloroplastic PLP dephosphorylation in the cellular context. With the identification of this HAD-type PLP phosphatase, we also provide insight into B6 vitamer homeostasis.
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Affiliation(s)
- Jacqueline Altensell
- Department of Plant Physiology, University of Kaiserslautern, Kaiserslautern 67653, Germany
| | - Ruth Wartenberg
- Department of Plant Physiology, University of Kaiserslautern, Kaiserslautern 67653, Germany
| | - Ilka Haferkamp
- Department of Plant Physiology, University of Kaiserslautern, Kaiserslautern 67653, Germany
| | - Sebastian Hassler
- Department of Plant Physiology, University of Kaiserslautern, Kaiserslautern 67653, Germany
| | - Vanessa Scherer
- Department of Plant Physiology, University of Kaiserslautern, Kaiserslautern 67653, Germany
| | - Priscille Steensma
- Department of Botany and Plant Biology, University of Geneva, Geneva 1211, Switzerland
| | - Teresa B Fitzpatrick
- Department of Botany and Plant Biology, University of Geneva, Geneva 1211, Switzerland
| | - Anurag Sharma
- Copenhagen Plant Science Center, University of Copenhagen, Frederiksberg 1871, Denmark
| | - Omar Sandoval-Ibañez
- Copenhagen Plant Science Center, University of Copenhagen, Frederiksberg 1871, Denmark
| | - Mathias Pribil
- Copenhagen Plant Science Center, University of Copenhagen, Frederiksberg 1871, Denmark
| | - Martin Lehmann
- Department of Biology I, Ludwig-Maximilians University of Munich, Planegg-Martinsried 82152, Germany
| | - Dario Leister
- Department of Biology I, Ludwig-Maximilians University of Munich, Planegg-Martinsried 82152, Germany
| | - Tatjana Kleine
- Department of Biology I, Ludwig-Maximilians University of Munich, Planegg-Martinsried 82152, Germany
| | - H Ekkehard Neuhaus
- Department of Plant Physiology, University of Kaiserslautern, Kaiserslautern 67653, Germany
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35
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Ast J, Novak AN, Podewin T, Fine NHF, Jones B, Tomas A, Birke R, Roßmann K, Mathes B, Eichhorst J, Lehmann M, Linnemann AK, Hodson DJ, Broichhagen J. Expanded LUXendin Color Palette for GLP1R Detection and Visualization In Vitro and In Vivo. JACS Au 2022; 2:1007-1017. [PMID: 35557759 PMCID: PMC9088800 DOI: 10.1021/jacsau.2c00130] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 05/12/2023]
Abstract
The glucagon-like peptide-1 receptor (GLP1R) is expressed in peripheral tissues and the brain, where it exerts pleiotropic actions on metabolic and inflammatory processes. Detection and visualization of GLP1R remains challenging, partly due to a lack of validated reagents. Previously, we generated LUXendins, antagonistic red and far-red fluorescent probes for specific labeling of GLP1R in live and fixed cells/tissues. We now extend this concept to the green and near-infrared color ranges by synthesizing and testing LUXendin492, LUXendin551, LUXendin615, and LUXendin762. All four probes brightly and specifically label GLP1R in cells and pancreatic islets. Further, LUXendin551 acts as a chemical beta cell reporter in preclinical rodent models, while LUXendin762 allows noninvasive imaging, highlighting differentially accessible GLP1R populations. We thus expand the color palette of LUXendins to seven different spectra, opening up a range of experiments using wide-field microscopy available in most labs through super-resolution imaging and whole animal imaging. With this, we expect that LUXendins will continue to generate novel and specific insights into GLP1R biology.
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Affiliation(s)
- Julia Ast
- Institute
of Metabolism and Systems Research (IMSR), and Centre of Membrane
Proteins and Receptors (COMPARE), University
of Birmingham, Birmingham B15 2TT, U.K.
- Centre
for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TT, U.K.
| | - Alissa N. Novak
- Department
of Pediatrics, and Indiana Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Tom Podewin
- Department
of Chemical Biology, Max Planck Institute
for Medical Research, Heidelberg 69120, Germany
| | - Nicholas H. F. Fine
- Institute
of Metabolism and Systems Research (IMSR), and Centre of Membrane
Proteins and Receptors (COMPARE), University
of Birmingham, Birmingham B15 2TT, U.K.
- Centre
for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TT, U.K.
| | - Ben Jones
- Section
of Endocrinology and Investigative Medicine, Division of Diabetes,
Endocrinology and Metabolism, Imperial College
London, London W12 0NN, U.K.
| | - Alejandra Tomas
- Section of
Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology
and Metabolism, Imperial College London, London W12 0NN, U.K.
| | - Ramona Birke
- Leibniz-Forschungsinstitut
für Molekulare Pharmakologie, Berlin 13125, Germany
| | - Kilian Roßmann
- Leibniz-Forschungsinstitut
für Molekulare Pharmakologie, Berlin 13125, Germany
| | - Bettina Mathes
- Department
of Chemical Biology, Max Planck Institute
for Medical Research, Heidelberg 69120, Germany
| | - Jenny Eichhorst
- Department
of Pharmacology and Cell Biology, Leibniz-Forschungsinstitut
für Molekulare Pharmakologie, Berlin 13125, Germany
| | - Martin Lehmann
- Department
of Pharmacology and Cell Biology, Leibniz-Forschungsinstitut
für Molekulare Pharmakologie, Berlin 13125, Germany
| | - Amelia K. Linnemann
- Department
of Pediatrics, and Indiana Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - David J. Hodson
- Institute
of Metabolism and Systems Research (IMSR), and Centre of Membrane
Proteins and Receptors (COMPARE), University
of Birmingham, Birmingham B15 2TT, U.K.
- Centre
for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TT, U.K.
- Oxford
Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford
Biomedical Research Centre, Churchill Hospital, Radcliffe Department
of Medicine, University of Oxford, Oxford OX3 7LE, U.K.
| | - Johannes Broichhagen
- Department
of Chemical Biology, Max Planck Institute
for Medical Research, Heidelberg 69120, Germany
- Leibniz-Forschungsinstitut
für Molekulare Pharmakologie, Berlin 13125, Germany
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36
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Li Z, Ludwig N, Thomas K, Mersmann S, Lehmann M, Vestweber D, Pittet JF, Gomez H, Kellum JA, Rossaint J, Zarbock A. The Pathogenesis of Ischemia-Reperfusion Induced Acute Kidney Injury Depends on Renal Neutrophil Recruitment Whereas Sepsis-Induced AKI Does Not. Front Immunol 2022; 13:843782. [PMID: 35529856 PMCID: PMC9069608 DOI: 10.3389/fimmu.2022.843782] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 12/26/2021] [Accepted: 03/25/2022] [Indexed: 11/13/2022] Open
Abstract
Acute kidney injury (AKI) may be induced by different causes, including renal ischemia-reperfusion injury and sepsis, which represent the most common reasons for AKI in hospitalized patients. AKI is defined by reduced urine production and/or increased plasma creatinine. However, this definition does not address the molecular mechanisms of different AKI entities, and uncertainties remain regarding distinct pathophysiological events causing kidney injury in the first place. In particular, sepsis-induced AKI is considered not to be associated with leukocyte infiltration into the kidney, but a direct investigation of this process is missing to this date. In this study, we used two murine AKI models induced by either renal ischemia-reperfusion injury (IRI) or cecal ligation and puncture (CLP) to investigate the contribution of neutrophils to tissue injury and kidney function. By using VEC-Y731F mice, in which neutrophil recruitment is impaired, we analyzed the specific contribution of neutrophil recruitment to the pathogenesis of IRI- and CLP-induced AKI. We observed that the degree of renal injury evaluated by plasma creatinine, urinary biomarkers and histological analyses, following IRI-induction was dependent on neutrophil migration into the kidney, whereas the pathogenesis of CLP-induced AKI was independent of neutrophil recruitment. Furthermore, plasma transfer experiments suggest that the pathogenesis of CLP-induced AKI relies on circulating inflammatory mediators. These results extend our knowledge of the AKI pathogenesis and may help in the development of prophylactic and therapeutic treatments for AKI patients.
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Affiliation(s)
- Zhenhan Li
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Nadine Ludwig
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Katharina Thomas
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Sina Mersmann
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Martin Lehmann
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Dietmar Vestweber
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Jean-Francois Pittet
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Hernando Gomez
- The Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - John A. Kellum
- The Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jan Rossaint
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Alexander Zarbock
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
- *Correspondence: Alexander Zarbock,
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37
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Willard ECD, Sundquist A, Glitsoe V, Sorbara JO, Tamez-Hidalgo P, Heine C, Ricker T, Lehmann M, Bergman A, Etheve S, Chatelle CV. A New Rapid and Quantitative Assay to Determine the Phytase Activity of Feed. ACS Omega 2022; 7:5292-5299. [PMID: 35187344 PMCID: PMC8851631 DOI: 10.1021/acsomega.1c05917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
The fortification of animal feed with enzymes in order to optimize feed utilization has become a standard for the meat production industry. A method for measuring levels of active enzymes that can be carried out quickly would ensure that feed has been supplemented with the appropriate amount of enzyme. Phytase is the most widely used feed enzyme and is routinely quantified with an activity assay in a limited number of specialized laboratories. As an alternative, we report here the development of a rapid and easy method to perform a quantitative assay for the phytase from Citrobacter braakii. The method is suitable for use at local sites with a minimum lab setup and will reduce delays and potential interferences due to improper sample storage and shipment. The new assay is based on a lateral flow immunoassay that utilizes magnetic immune-chromatographic test (MICT) technology to quantify the phytase content of a feed extract. After extraction of the phytase from the feed, the sample is simply diluted and added to a reaction tube containing a specific anti-phytase antibody coupled to superparamagnetic particles. The mixture is then applied on an assay cassette, where the formed particle-antibody-phytase complexes are captured by immobilized antibodies on a nitro-cellulose strip housed in a cassette. The cassette is placed in the MICT reader that measures the magnetic signal of the captured particles. Using the calibration information stored in the cassette barcode, the signal is converted to a phytase concentration, given as phytase activity (FYT) per kilogram of feed. The accuracy and robustness of the assay compared to the ISO phytase activity assay were demonstrated through a large validation study including real feed samples from different compositions and origins. The MICT assay is the first quantitative assay for feed enzymes that is fast, reliable, and simple to use outside of a specialized reference laboratory and that is suitable for use in place of the current ISO assay.
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Affiliation(s)
- Eric C. D. Willard
- MagnaBioAnalytics
LLC, 6335 Ferris Square, San Diego, California 92121, United States
| | - Alfred Sundquist
- MagnaBioAnalytics
LLC, 6335 Ferris Square, San Diego, California 92121, United States
| | - Vibe Glitsoe
- Novozymes
A/S, Krogshøjvej
36, 2880 Bagsværd, Denmark
| | | | | | - Cornelia Heine
- Biopract
GmbH, Magnusstrasse 11, Berlin ZIP 12489, Germany
| | - Tara Ricker
- DSM
Nutritional Products, 253 Macks Island Drive, Belvidere, New Jersey 07823, United States
| | - Martin Lehmann
- DSM
Nutritional Products, Wurmisweg 576, Kaiseraugst ZIP 4303, Switzerland
| | - Andre Bergman
- MagnaBioAnalytics
LLC, 6335 Ferris Square, San Diego, California 92121, United States
| | - Stéphane Etheve
- DSM
Nutritional Products, Wurmisweg 576, Kaiseraugst ZIP 4303, Switzerland
| | - Claire V. Chatelle
- DSM
Nutritional Products, Wurmisweg 576, Kaiseraugst ZIP 4303, Switzerland
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Baltzer S, Bulatov T, Schmied C, Krämer A, Berger BT, Oder A, Walker-Gray R, Kuschke C, Zühlke K, Eichhorst J, Lehmann M, Knapp S, Weston J, von Kries JP, Süssmuth RD, Klussmann E. Aurora Kinase A Is Involved in Controlling the Localization of Aquaporin-2 in Renal Principal Cells. Int J Mol Sci 2022; 23:ijms23020763. [PMID: 35054947 PMCID: PMC8776063 DOI: 10.3390/ijms23020763] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/30/2021] [Accepted: 01/08/2022] [Indexed: 02/01/2023] Open
Abstract
The cAMP-dependent aquaporin-2 (AQP2) redistribution from intracellular vesicles into the plasma membrane of renal collecting duct principal cells induces water reabsorption and fine-tunes body water homeostasis. However, the mechanisms controlling the localization of AQP2 are not understood in detail. Using immortalized mouse medullary collecting duct (MCD4) and primary rat inner medullary collecting duct (IMCD) cells as model systems, we here discovered a key regulatory role of Aurora kinase A (AURKA) in the control of AQP2. The AURKA-selective inhibitor Aurora-A inhibitor I and novel derivatives as well as a structurally different inhibitor, Alisertib, prevented the cAMP-induced redistribution of AQP2. Aurora-A inhibitor I led to a depolymerization of actin stress fibers, which serve as tracks for the translocation of AQP2-bearing vesicles to the plasma membrane. The phosphorylation of cofilin-1 (CFL1) inactivates the actin-depolymerizing function of CFL1. Aurora-A inhibitor I decreased the CFL1 phosphorylation, accounting for the removal of the actin stress fibers and the inhibition of the redistribution of AQP2. Surprisingly, Alisertib caused an increase in actin stress fibers and did not affect CFL1 phosphorylation, indicating that AURKA exerts its control over AQP2 through different mechanisms. An involvement of AURKA and CFL1 in the control of the localization of AQP2 was hitherto unknown.
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Affiliation(s)
- Sandrine Baltzer
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
- Institute of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin, Germany; (T.B.); (R.D.S.)
| | - Timur Bulatov
- Institute of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin, Germany; (T.B.); (R.D.S.)
| | - Christopher Schmied
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Andreas Krämer
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Strasse 9, 60438 Frankfurt am Main, Germany; (A.K.); (B.-T.B.); (S.K.)
- Structural Genomics Consortium (SGC), Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Strasse 15, 60438 Frankfurt am Main, Germany
- DKTK (German Translational Research Network), Partner Site Frankfurt/Mainz, 60590 Frankfurt am Main, Germany
| | - Benedict-Tilman Berger
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Strasse 9, 60438 Frankfurt am Main, Germany; (A.K.); (B.-T.B.); (S.K.)
- Structural Genomics Consortium (SGC), Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Strasse 15, 60438 Frankfurt am Main, Germany
| | - Andreas Oder
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Ryan Walker-Gray
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
| | - Christin Kuschke
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
| | - Kerstin Zühlke
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
| | - Jenny Eichhorst
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Stefan Knapp
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Strasse 9, 60438 Frankfurt am Main, Germany; (A.K.); (B.-T.B.); (S.K.)
- Structural Genomics Consortium (SGC), Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Strasse 15, 60438 Frankfurt am Main, Germany
- DKTK (German Translational Research Network), Partner Site Frankfurt/Mainz, 60590 Frankfurt am Main, Germany
- Frankfurt Cancer Institute, 60596 Frankfurt am Main, Germany
| | - John Weston
- JQuest Consulting, Carl-Orff-Weg 25, 65779 Kelkheim, Germany;
| | - Jens Peter von Kries
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Roderich D. Süssmuth
- Institute of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin, Germany; (T.B.); (R.D.S.)
| | - Enno Klussmann
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
- Correspondence: ; Tel.: +49-30-9406-2596
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Birke R, Ast J, Roosen DA, Lee J, Roßmann K, Huhn C, Mathes B, Lisurek M, Bushiri D, Sun H, Jones B, Lehmann M, Levitz J, Haucke V, Hodson DJ, Broichhagen J. Sulfonated red and far-red rhodamines to visualize SNAP- and Halo-tagged cell surface proteins. Org Biomol Chem 2022; 20:5967-5980. [PMID: 35188523 PMCID: PMC9346974 DOI: 10.1039/d1ob02216d] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The (in)ability to permeate membranes is a key feature of chemical biology probes that defines their suitability for specific applications. Here we report sulfonated rhodamines that endow xanthene dyes with cellular impermeability for analysis of surface proteins. We fuse charged sulfonates to red and far-red dyes to obtain Sulfo549 and Sulfo646, respectively, and further link these to benzylguanine and choloralkane substrates for SNAP-tag and Halo-tag labelling. Sulfonated rhodamine-conjugated fluorophores maintain desirable photophysical properties, such as brightness and photostability. While transfected cells with a nuclear localized SNAP-tag remain unlabelled, extracellular exposed tags can be cleanly visualized. By multiplexing with a permeable rhodamine, we are able to differentiate extra- and intracellular SNAP- and Halo-tags, including those installed on the glucagon-like peptide-1 receptor, a prototypical class B G protein-coupled receptor. Sulfo549 and Sulfo646 also labelled transfected neurons derived from induced pluripotent stem cells (iPSCs), allowing STED nanoscopy of the axonal membrane. Together, this work provides a new avenue for rendering dyes impermeable for exclusive extracellular visualization via self-labelling protein tags. We anticipate that Sulfo549, Sulfo646 and their congeners will be useful for a number of cell biology applications where labelling of intracellular sites interferes with accurate surface protein analysis. Sulfonated rhodamine dyes allow SNAP- and Halo-tag labelling of cell surface protein fusions. A far-red version can be used for STED nanoscopy.![]()
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Affiliation(s)
- Ramona Birke
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Julia Ast
- Institute of Metabolism and Systems Research (IMSR), University of Birmingham, Birmingham, B15 2TT, UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TT, UK
- Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
| | - Dorien A. Roosen
- Department of Molecular Pharmacology and Cell Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Joon Lee
- Department of Biochemistry, Weill Cornell Medicine, New York, NY 10065, USA
| | - Kilian Roßmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Christiane Huhn
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Bettina Mathes
- Department of Chemical Biology, Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Michael Lisurek
- Structural Chemistry and Computational Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - David Bushiri
- Structural Chemistry and Computational Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Han Sun
- Structural Chemistry and Computational Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Ben Jones
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
| | - Martin Lehmann
- Department of Molecular Pharmacology and Cell Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Joshua Levitz
- Department of Biochemistry, Weill Cornell Medicine, New York, NY 10065, USA
| | - Volker Haucke
- Department of Molecular Pharmacology and Cell Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - David J. Hodson
- Institute of Metabolism and Systems Research (IMSR), University of Birmingham, Birmingham, B15 2TT, UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TT, UK
- Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK
| | - Johannes Broichhagen
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
- Department of Chemical Biology, Max Planck Institute for Medical Research, Heidelberg, Germany
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40
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Schmied C, Soykan T, Bolz S, Haucke V, Lehmann M. SynActJ: Easy-to-Use Automated Analysis of Synaptic Activity. Front Comput Sci 2021. [DOI: 10.3389/fcomp.2021.777837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Neuronal synapses are highly dynamic communication hubs that mediate chemical neurotransmission via the exocytic fusion and subsequent endocytic recycling of neurotransmitter-containing synaptic vesicles (SVs). Functional imaging tools allow for the direct visualization of synaptic activity by detecting action potentials, pre- or postsynaptic calcium influx, SV exo- and endocytosis, and glutamate release. Fluorescent organic dyes or synapse-targeted genetic molecular reporters, such as calcium, voltage or neurotransmitter sensors and synapto-pHluorins reveal synaptic activity by undergoing rapid changes in their fluorescence intensity upon neuronal activity on timescales of milliseconds to seconds, which typically are recorded by fast and sensitive widefield live cell microscopy. The analysis of the resulting time-lapse movies in the past has been performed by either manually picking individual structures, custom scripts that have not been made widely available to the scientific community, or advanced software toolboxes that are complicated to use. For the precise, unbiased and reproducible measurement of synaptic activity, it is key that the research community has access to bio-image analysis tools that are easy-to-apply and allow the automated detection of fluorescent intensity changes in active synapses. Here we present SynActJ (Synaptic Activity in ImageJ), an easy-to-use fully open-source workflow that enables automated image and data analysis of synaptic activity. The workflow consists of a Fiji plugin performing the automated image analysis of active synapses in time-lapse movies via an interactive seeded watershed segmentation that can be easily adjusted and applied to a dataset in batch mode. The extracted intensity traces of each synaptic bouton are automatically processed, analyzed, and plotted using an R Shiny workflow. We validate the workflow on time-lapse images of stimulated synapses expressing the SV exo-/endocytosis reporter Synaptophysin-pHluorin or a synapse-targeted calcium sensor, Synaptophysin-RGECO. We compare the automatic workflow to manual analysis and compute calcium-influx and SV exo-/endocytosis kinetics and other parameters for synaptic vesicle recycling under different conditions. We predict SynActJ to become an important tool for the analysis of synaptic activity and synapse properties.
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41
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Kolbeck PJ, Vanderlinden W, Gemmecker G, Gebhardt C, Lehmann M, Lak A, Nicolaus T, Cordes T, Lipfert J. Correction to 'Molecular structure, DNA binding mode, photophysical properties and recommendations for use of SYBR Gold'. Nucleic Acids Res 2021; 49:12601-12602. [PMID: 34850107 PMCID: PMC8643635 DOI: 10.1093/nar/gkab1164] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Pauline J Kolbeck
- Department of Physics and Center for NanoScience, LMU Munich, Amalienstrasse 54, 80799 Munich, Germany
| | - Willem Vanderlinden
- Department of Physics and Center for NanoScience, LMU Munich, Amalienstrasse 54, 80799 Munich, Germany
| | - Gerd Gemmecker
- Bavarian NMR Center (BNMRZ), Department of Chemistry, Technical University of Munich, Garching, Germany
| | - Christian Gebhardt
- Physical and Synthetic Biology, Faculty of Biology, LMU Munich, Planegg-Martinsried, Germany
| | - Martin Lehmann
- Plant Molecular Biology, Faculty of Biology, LMU Munich, Planegg-Martinsried, Germany
| | - Aidin Lak
- Department of Physics and Center for NanoScience, LMU Munich, Amalienstrasse 54, 80799 Munich, Germany
| | - Thomas Nicolaus
- Department of Physics and Center for NanoScience, LMU Munich, Amalienstrasse 54, 80799 Munich, Germany
| | - Thorben Cordes
- Physical and Synthetic Biology, Faculty of Biology, LMU Munich, Planegg-Martinsried, Germany
| | - Jan Lipfert
- Department of Physics and Center for NanoScience, LMU Munich, Amalienstrasse 54, 80799 Munich, Germany
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42
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Vargas S, Zimmer T, Conci N, Lehmann M, Wörheide G. Transcriptional response of the calcification and stress response toolkits in an octocoral under heat and pH stress. Mol Ecol 2021; 31:798-810. [PMID: 34748669 DOI: 10.1111/mec.16266] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 07/16/2020] [Revised: 10/22/2021] [Accepted: 10/27/2021] [Indexed: 10/19/2022]
Abstract
Up to one-third of all described marine species inhabit coral reefs, but the future of these hyperdiverse ecosystems is insecure due to local and global threats, such as overfishing, eutrophication, ocean warming and acidification. Although these impacts are expected to have a net detrimental effect on reefs, it has been shown that some organisms such as octocorals may remain unaffected, or benefit from, anthropogenically induced environmental change, and may replace stony corals in future reefs. Despite their potential importance in future shallow-water coastal environments, the molecular mechanisms leading to the resilience to anthropogenically induced stress observed in octocorals remain unknown. Here, we use manipulative experiments, proteomics and transcriptomics to show that the molecular toolkit used by Pinnigorgia flava, a common Indo-Pacific gorgonian octocoral, to deposit its calcium carbonate skeleton is resilient to heat and seawater acidification stress. Sublethal heat stress triggered a stress response in P. flava but did not affect the expression of 27 transcripts encoding skeletal organic matrix (SOM) proteins. Exposure to seawater acidification did not cause a stress response but triggered the downregulation of many transcripts, including an osteonidogen homologue present in the SOM. The observed transcriptional decoupling of the skeletogenic and stress-response toolkits provides insights into the mechanisms of resilience to anthropogenically driven environmental change observed in octocorals.
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Affiliation(s)
- Sergio Vargas
- Department of Earth and Environmental Sciences, Paleontology & Geobiology, Ludwig-Maximilians-Universität München, München, Germany
| | - Thorsten Zimmer
- Department of Earth and Environmental Sciences, Paleontology & Geobiology, Ludwig-Maximilians-Universität München, München, Germany
| | - Nicola Conci
- Department of Earth and Environmental Sciences, Paleontology & Geobiology, Ludwig-Maximilians-Universität München, München, Germany
| | - Martin Lehmann
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Gert Wörheide
- Department of Earth and Environmental Sciences, Paleontology & Geobiology, Ludwig-Maximilians-Universität München, München, Germany.,GeoBio-Center, Ludwig-Maximilians-Universität München, München, Germany.,SNSB-Bayerische Staatssammlung für Paläontologie und Geologie, München, Germany
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43
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Roeske J, Mostafavi H, Lehmann M, Morf D, Cortesi L, Zhu L, Wagstaff P, Kaur M, Kang H, Harkenrider M. Initial Clinical Evaluation of Fast-kV Dual Energy Imaging for Markerless Tumor Tracking of Lung Tumors in Stereotactic Body Radiation Therapy (SBRT). Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.128] [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: 10/20/2022]
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Harris T, Seco J, Ferguson D, Jacobson M, Myronakis M, Lozano I, Lehmann M, Huber P, Fueglistaller R, Morf D, Mamon H, Mancias J, Martin N, Berbeco R. Beam's-Eye-View Imaging of Liver SBRT With a Novel Multi-Layer Imager. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.127] [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: 11/26/2022]
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45
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Palmeira M, Borba Neto C, Vieira A, Schwegler E, Lehmann M, Moreira F, Oliveira Jr J, Bianchi I, Peripolli V. Produção leiteira de vacas em sistema semi-extensivo e sua relação com o estresse calórico. ARCH ZOOTEC 2021. [DOI: 10.21071/az.v70i272.5577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Considerando as caraterísticas subtropicais sul do Brasil, onde o verão é caracterizado por sua extensa duração com elevadas temperaturas e altos níveis de umidade, o estresse calórico é fator recorrente e pronunciado na bovinocultura leiteira. TTendo em vista o número expressivo de pequenos produtores e agricultura familiar na região de Santa Catarina, é imprescindível a análise dos impactos do estresse calórico em produções com menores dimensões. Por essas razões, o objetivo do presente estudo foi avaliar o impacto do estresse calórico na produção leiteira de vacas de baixa produção.11 animais foram analisados durante 4 meses (novembro a março), e as produções individuais diárias de leite foram obtidas através de copo coletor acoplado ao sistema de ordenha tipo espinha de peixe, com circuito fechado. Os dados das temperaturas diárias mínima e máxima, bem como a umidade relativa do ar durante o período experimental foram obtidos na estação meteorológica do Instituto Federal Catarinense Campus Araquari. As análises estatísticas foram realizadas com o auxílio do software SAS (versão 9.3, SAS Institute Inc., Cary, NC). Os dados foram submetidos a análise de variância (PROC MIXED) para avaliar o efeito do mês sobre o índice temperatura e umidade e a produção média de leite, e avaliar o efeito do ITU abaixo ou acima de 72 sobre a produção média de leite, além de correlação de Pearson (PROC CORR) e regressão (PROC REG) para avaliar a relação entre o ITU e a produção média de leite. As médias foram comparadas pelo teste de Tukey a 5% de probabilidade de erro. Os animais estudados não tiveram queda na produção quando o ITU foi mais pronunciado, sendo justificado pela baixa produção leiteira dos animais, tendo menor desafio metabólico.
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Grädler U, Busch M, Leuthner B, Raba M, Burgdorf L, Lehmann M, Linde N, Esdar C. Corrigendum to "Biochemical, cellular and structural characterization of novel and selective ERK3 inhibitors" [Bioorg. Med. Chem. Lett. 30 (2020) 127551]. Bioorg Med Chem Lett 2021; 49:128262. [PMID: 34352662 DOI: 10.1016/j.bmcl.2021.128262] [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: 10/20/2022]
Affiliation(s)
- Ulrich Grädler
- Merck KGaA, Frankfurter Str. 250, D-64293 Darmstadt, Germany.
| | - Michael Busch
- Merck KGaA, Frankfurter Str. 250, D-64293 Darmstadt, Germany
| | | | - Michael Raba
- Crelux GmbH - a WuXi AppTec Company, Am Klopferspitz 19 a, D-82152 München, Germany
| | - Lars Burgdorf
- Merck KGaA, Frankfurter Str. 250, D-64293 Darmstadt, Germany
| | - Martin Lehmann
- Merck KGaA, Frankfurter Str. 250, D-64293 Darmstadt, Germany
| | - Nina Linde
- Merck KGaA, Frankfurter Str. 250, D-64293 Darmstadt, Germany
| | - Christina Esdar
- Merck KGaA, Frankfurter Str. 250, D-64293 Darmstadt, Germany
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Schneider AFL, Benz LS, Lehmann M, Hackenberger CPR. Zellpermeable Nanobodys ermöglichen Zwei‐Farben‐Superauflösungsmikroskopie in lebenden, nicht transfizierten Zellen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anselm F. L. Schneider
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) Robert-Rössle-Straße 10 13125 Berlin Deutschland
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14189 Berlin Deutschland
| | - Laila S. Benz
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14189 Berlin Deutschland
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) Robert-Rössle-Straße 10 13125 Berlin Deutschland
| | - Christian P. R. Hackenberger
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) Robert-Rössle-Straße 10 13125 Berlin Deutschland
- Department of Chemistry Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Deutschland
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Mecklenburg N, Kowalczyk I, Witte F, Görne J, Laier A, Mamo TM, Gonschior H, Lehmann M, Richter M, Sporbert A, Purfürst B, Hübner N, Hammes A. Identification of disease-relevant modulators of the SHH pathway in the developing brain. Development 2021; 148:272000. [PMID: 34463328 DOI: 10.1242/dev.199307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 12/11/2020] [Accepted: 07/19/2021] [Indexed: 12/13/2022]
Abstract
Pathogenic gene variants in humans that affect the sonic hedgehog (SHH) pathway lead to severe brain malformations with variable penetrance due to unknown modifier genes. To identify such modifiers, we established novel congenic mouse models. LRP2-deficient C57BL/6N mice suffer from heart outflow tract defects and holoprosencephaly caused by impaired SHH activity. These defects are fully rescued on a FVB/N background, indicating a strong influence of modifier genes. Applying comparative transcriptomics, we identified Pttg1 and Ulk4 as candidate modifiers upregulated in the rescue strain. Functional analyses showed that ULK4 and PTTG1, both microtubule-associated proteins, are positive regulators of SHH signaling, rendering the pathway more resilient to disturbances. In addition, we characterized ULK4 and PTTG1 as previously unidentified components of primary cilia in the neuroepithelium. The identification of genes that powerfully modulate the penetrance of genetic disturbances affecting the brain and heart is likely relevant to understanding the variability in human congenital disorders.
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Affiliation(s)
- Nora Mecklenburg
- Disorders of the Nervous System, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Izabela Kowalczyk
- Disorders of the Nervous System, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Franziska Witte
- Cardiovascular and Metabolic Sciences, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Jessica Görne
- Disorders of the Nervous System, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Alena Laier
- Disorders of the Nervous System, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Tamrat M Mamo
- Disorders of the Nervous System, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Hannes Gonschior
- Cellular Imaging, Light Microscopy, Leibniz-Research Institute for Molecular Pharmacology (FMP), 13125 Berlin, Germany
| | - Martin Lehmann
- Cellular Imaging, Light Microscopy, Leibniz-Research Institute for Molecular Pharmacology (FMP), 13125 Berlin, Germany
| | - Matthias Richter
- Advanced Light Microscopy Technology Platform, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Anje Sporbert
- Advanced Light Microscopy Technology Platform, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Bettina Purfürst
- Electron microscopy technology platform, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Norbert Hübner
- Cardiovascular and Metabolic Sciences, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, 10785 Berlin, Germany.,Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany.,Berlin Institute of Health (BIH), 10178 Berlin, Germany
| | - Annette Hammes
- Disorders of the Nervous System, Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
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Gebhardt C, Lehmann M, Reif MM, Zacharias M, Gemmecker G, Cordes T. Molecular and Spectroscopic Characterization of Green and Red Cyanine Fluorophores from the Alexa Fluor and AF Series. Chemphyschem 2021; 22:1546. [PMID: 34352157 DOI: 10.1002/cphc.202100509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The front cover artwork was provided by Gabriel Moya, a PhD student in the Cordes lab (LMU Biocenter Munich, Germany). The cover image shows an artistic impression of the chemical structures of two fluorophores investigated in the paper. Read the full text of the Article at 10.1002/cphc.202000935.
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Affiliation(s)
- Christian Gebhardt
- Physical and Synthetic Biology, Faculty of Biology, Ludwig-Maximilians-Universität München, Großhadernerstr. 2-4, 82152, Planegg-Martinsried, Germany
| | - Martin Lehmann
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-Universität München, Großhadernerstr. 2-4, 82152, Planegg-Martinsried, Germany
| | - Maria M Reif
- Theoretical Biophysics (T38), Physics Department, Technical University of Munich, Center for Functional Protein Assemblies (CPA), Ernst-Otto-Fischer-Str. 8, 85748 Garching, Germany
| | - Martin Zacharias
- Theoretical Biophysics (T38), Physics Department, Technical University of Munich, Center for Functional Protein Assemblies (CPA), Ernst-Otto-Fischer-Str. 8, 85748 Garching, Germany
| | - Gerd Gemmecker
- Bavarian NMR Center (B NMRZ), Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85748, Garching, Germany
| | - Thorben Cordes
- Physical and Synthetic Biology, Faculty of Biology, Ludwig-Maximilians-Universität München, Großhadernerstr. 2-4, 82152, Planegg-Martinsried, Germany
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50
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Gebhardt C, Lehmann M, Reif MM, Zacharias M, Gemmecker G, Cordes T. Front Cover: Molecular and Spectroscopic Characterization of Green and Red Cyanine Fluorophores from the Alexa Fluor and AF Series (15/2021). Chemphyschem 2021. [DOI: 10.1002/cphc.202100511] [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: 11/06/2022]
Affiliation(s)
- Christian Gebhardt
- Physical and Synthetic Biology, Faculty of Biology Ludwig-Maximilians-Universität München Großhadernerstr. 2–4 82152 Planegg-Martinsried Germany
| | - Martin Lehmann
- Plant Molecular Biology, Faculty of Biology Ludwig-Maximilians-Universität München Großhadernerstr. 2—4 82152 Planegg-Martinsried Germany
| | - Maria M. Reif
- Theoretical Biophysics (T38), Physics Department Center for Functional Protein Assemblies (CPA) Technical University of Munich Ernst-Otto-Fischer-Str. 8 85748 Garching Germany
| | - Martin Zacharias
- Theoretical Biophysics (T38), Physics Department Center for Functional Protein Assemblies (CPA) Technical University of Munich Ernst-Otto-Fischer-Str. 8 85748 Garching Germany
| | - Gerd Gemmecker
- Bavarian NMR Center (B NMRZ), Department of Chemistry Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Thorben Cordes
- Physical and Synthetic Biology, Faculty of Biology Ludwig-Maximilians-Universität München Großhadernerstr. 2–4 82152 Planegg-Martinsried Germany
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