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Carius P, Jungmann A, Bechtel M, Grißmer A, Boese A, Gasparoni G, Salhab A, Seipelt R, Urbschat K, Richter C, Meier C, Bojkova D, Cinatl J, Walter J, Schneider‐Daum N, Lehr C. A Monoclonal Human Alveolar Epithelial Cell Line ("Arlo") with Pronounced Barrier Function for Studying Drug Permeability and Viral Infections. Adv Sci (Weinh) 2023; 10:e2207301. [PMID: 36748276 PMCID: PMC10015904 DOI: 10.1002/advs.202207301] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Indexed: 06/18/2023]
Abstract
In the development of orally inhaled drug products preclinical animal models regularly fail to predict pharmacological as well as toxicological responses in humans. Models based on human cells and tissues are potential alternatives to animal experimentation allowing for the isolation of essential processes of human biology and making them accessible in vitro. Here, the generation of a novel monoclonal cell line "Arlo," derived from the polyclonal human alveolar epithelium lentivirus immortalized cell line hAELVi via single-cell printing, and its characterization as a model for the human alveolar epithelium as well as a building block for future complex in vitro models is described. "Arlo" is systematically compared in vitro to primary human alveolar epithelial cells (hAEpCs) as well as to the polyclonal hAELVi cell line. "Arlo" cells show enhanced barrier properties with high transepithelial electrical resistance (TEER) of ≈3000 Ω cm2 and a potential difference (PD) of ≈30 mV under air-liquid interface (ALI) conditions, that can be modulated. The cells grow in a polarized monolayer and express genes relevant to barrier integrity as well as homeostasis as is observed in hAEpCs. Successful productive infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in a proof-of-principle study offers an additional, attractive application of "Arlo" beyond biopharmaceutical experimentation.
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Affiliation(s)
- Patrick Carius
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI)Campus E8.166123SaarbrückenGermany
- Department of PharmacySaarland UniversityCampus E8.166123SaarbrückenGermany
| | - Annemarie Jungmann
- Department of Genetics and EpigeneticsSaarland UniversityCampus A2 466123SaarbrückenGermany
| | - Marco Bechtel
- Institute of Medical VirologyUniversity Hospital FrankfurtPaul‐Ehrlich‐Str. 4060596Frankfurt am MainGermany
| | - Alexander Grißmer
- Department of Anatomy and Cellular BiologySaarland UniversityKirrberger StraßeBuilding 6166421Homburg SaarGermany
| | - Annette Boese
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI)Campus E8.166123SaarbrückenGermany
| | - Gilles Gasparoni
- Department of Genetics and EpigeneticsSaarland UniversityCampus A2 466123SaarbrückenGermany
| | - Abdulrahman Salhab
- Department of Genetics and EpigeneticsSaarland UniversityCampus A2 466123SaarbrückenGermany
| | - Ralf Seipelt
- Section of Thoracic Surgery of the Saar Lung CenterSHG Clinics VölklingenRichardstraße 5‐966333VölklingenGermany
| | - Klaus Urbschat
- Section of Thoracic Surgery of the Saar Lung CenterSHG Clinics VölklingenRichardstraße 5‐966333VölklingenGermany
| | - Clémentine Richter
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI)Campus E8.166123SaarbrückenGermany
- Department of PharmacySaarland UniversityCampus E8.166123SaarbrückenGermany
| | - Carola Meier
- Department of Anatomy and Cellular BiologySaarland UniversityKirrberger StraßeBuilding 6166421Homburg SaarGermany
| | - Denisa Bojkova
- Institute of Medical VirologyUniversity Hospital FrankfurtPaul‐Ehrlich‐Str. 4060596Frankfurt am MainGermany
| | - Jindrich Cinatl
- Institute of Medical VirologyUniversity Hospital FrankfurtPaul‐Ehrlich‐Str. 4060596Frankfurt am MainGermany
| | - Jörn Walter
- Department of Genetics and EpigeneticsSaarland UniversityCampus A2 466123SaarbrückenGermany
| | - Nicole Schneider‐Daum
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI)Campus E8.166123SaarbrückenGermany
| | - Claus‐Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI)Campus E8.166123SaarbrückenGermany
- Department of PharmacySaarland UniversityCampus E8.166123SaarbrückenGermany
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2
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Enciu M, Liu HN, Obertelli A, Doornenbal P, Nowacki F, Ogata K, Poves A, Yoshida K, Achouri NL, Baba H, Browne F, Calvet D, Château F, Chen S, Chiga N, Corsi A, Cortés ML, Delbart A, Gheller JM, Giganon A, Gillibert A, Hilaire C, Isobe T, Kobayashi T, Kubota Y, Lapoux V, Motobayashi T, Murray I, Otsu H, Panin V, Paul N, Rodriguez W, Sakurai H, Sasano M, Steppenbeck D, Stuhl L, Sun YL, Togano Y, Uesaka T, Wimmer K, Yoneda K, Aktas O, Aumann T, Chung LX, Flavigny F, Franchoo S, Gasparic I, Gerst RB, Gibelin J, Hahn KI, Kim D, Kondo Y, Koseoglou P, Lee J, Lehr C, Li PJ, Linh BD, Lokotko T, MacCormick M, Moschner K, Nakamura T, Park SY, Rossi D, Sahin E, Söderström PA, Sohler D, Takeuchi S, Toernqvist H, Vaquero V, Wagner V, Wang S, Werner V, Xu X, Yamada H, Yan D, Yang Z, Yasuda M, Zanetti L. Extended p_{3/2} Neutron Orbital and the N=32 Shell Closure in ^{52}Ca. Phys Rev Lett 2022; 129:262501. [PMID: 36608181 DOI: 10.1103/physrevlett.129.262501] [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] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/24/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
The one-neutron knockout from ^{52}Ca in inverse kinematics onto a proton target was performed at ∼230 MeV/nucleon combined with prompt γ spectroscopy. Exclusive quasifree scattering cross sections to bound states in ^{51}Ca and the momentum distributions corresponding to the removal of 1f_{7/2} and 2p_{3/2} neutrons were measured. The cross sections, interpreted within the distorted-wave impulse approximation reaction framework, are consistent with a shell closure at the neutron number N=32, found as strong as at N=28 and N=34 in Ca isotopes from the same observables. The analysis of the momentum distributions leads to a difference of the root-mean-square radii of the neutron 1f_{7/2} and 2p_{3/2} orbitals of 0.61(23) fm, in agreement with the modified-shell-model prediction of 0.7 fm suggesting that the large root-mean-square radius of the 2p_{3/2} orbital in neutron-rich Ca isotopes is responsible for the unexpected linear increase of the charge radius with the neutron number.
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Affiliation(s)
- M Enciu
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - H N Liu
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - A Obertelli
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - P Doornenbal
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - F Nowacki
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - K Ogata
- Department of Physics, Kyushu University, Fukuoka 819-0395, Japan
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - A Poves
- Departamento de Fisica Teorica and IFT UAM-CSIC, Universidad Autonoma de Madrid, Spain
| | - K Yoshida
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - N L Achouri
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, F-14000 Caen, France
| | - H Baba
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - F Browne
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D Calvet
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - F Château
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Chen
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
- State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - N Chiga
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - A Corsi
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M L Cortés
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - A Delbart
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - J-M Gheller
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Giganon
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Gillibert
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Hilaire
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - T Isobe
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Kobayashi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - Y Kubota
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Center for Nuclear Study, University of Tokyo, RIKEN campus, Wako, Saitama 351-0198, Japan
| | - V Lapoux
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - T Motobayashi
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - I Murray
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay cedex, France
| | - H Otsu
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - V Panin
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Paul
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS, PSL Research University, Collège de France, Case 74, 4 Place Jussieu, 75005 Paris, France
| | - W Rodriguez
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Pontificia Universidad Javeriana, Facultad de Ciencias, Departamento de Física, Bogotá, Colombia
- Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Física, Bogotá 111321, Colombia
| | - H Sakurai
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - M Sasano
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D Steppenbeck
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - L Stuhl
- Center for Nuclear Study, University of Tokyo, RIKEN campus, Wako, Saitama 351-0198, Japan
- Institute for Nuclear Research, Atomki, P.O. Box 51, Debrecen H-4001, Hungary
- Institute for Basic Science, Daejeon 34126, Korea
| | - Y L Sun
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Y Togano
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 172-8501, Japan
| | - T Uesaka
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Wimmer
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - K Yoneda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - O Aktas
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - T Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - L X Chung
- Institute for Nuclear Science & Technology, VINATOM, 179 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - F Flavigny
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, F-14000 Caen, France
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay cedex, France
| | - S Franchoo
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay cedex, France
| | - I Gasparic
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - R-B Gerst
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
| | - J Gibelin
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, F-14000 Caen, France
| | - K I Hahn
- Institute for Basic Science, Daejeon 34126, Korea
- Ewha Womans University, Seoul 03760, Korea
| | - D Kim
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Institute for Basic Science, Daejeon 34126, Korea
- Ewha Womans University, Seoul 03760, Korea
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - P Koseoglou
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - J Lee
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - C Lehr
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - P J Li
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - B D Linh
- Institute for Nuclear Science & Technology, VINATOM, 179 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - T Lokotko
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - M MacCormick
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay cedex, France
| | - K Moschner
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - S Y Park
- Institute for Basic Science, Daejeon 34126, Korea
- Ewha Womans University, Seoul 03760, Korea
| | - D Rossi
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - E Sahin
- Department of Physics, University of Oslo, N-0316 Oslo, Norway
| | - P-A Söderström
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - D Sohler
- Institute for Nuclear Research, Atomki, P.O. Box 51, Debrecen H-4001, Hungary
| | - S Takeuchi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - H Toernqvist
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - V Vaquero
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - V Wagner
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - S Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - V Werner
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- Helmholtz Forschungsakademie Hessen für FAIR (HFHF), GSI Helmholtzzentrum für Schwerionenforschung, Campus Darmstadt, 64289 Darmstadt, Germany
| | - X Xu
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - H Yamada
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - D Yan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z Yang
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - M Yasuda
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - L Zanetti
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
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Huck BC, Thiyagarajan D, Bali A, Boese A, Besecke KFW, Hozsa C, Gieseler RK, Furch M, Carvalho‐Wodarz C, Waldow F, Schwudke D, Metelkina O, Titz A, Huwer H, Schwarzkopf K, Hoppstädter J, Kiemer AK, Koch M, Loretz B, Lehr C. Nano-in-Microparticles for Aerosol Delivery of Antibiotic-Loaded, Fucose-Derivatized, and Macrophage-Targeted Liposomes to Combat Mycobacterial Infections: In Vitro Deposition, Pulmonary Barrier Interactions, and Targeted Delivery. Adv Healthc Mater 2022; 11:e2102117. [PMID: 35112802 DOI: 10.1002/adhm.202102117] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/14/2022] [Indexed: 12/12/2022]
Abstract
Nontuberculous mycobacterial infections rapidly emerge and demand potent medications to cope with resistance. In this context, targeted loco-regional delivery of aerosol medicines to the lungs is an advantage. However, sufficient antibiotic delivery requires engineered aerosols for optimized deposition. Here, the effect of bedaquiline-encapsulating fucosylated versus nonfucosylated liposomes on cellular uptake and delivery is investigated. Notably, this comparison includes critical parameters for pulmonary delivery, i.e., aerosol deposition and the noncellular barriers of pulmonary surfactant (PS) and mucus. Targeting increases liposomal uptake into THP-1 cells as well as peripheral blood monocyte- and lung-tissue derived macrophages. Aerosol deposition in the presence of PS, however, masks the effect of active targeting. PS alters antibiotic release that depends on the drug's hydrophobicity, while mucus reduces the mobility of nontargeted more than fucosylated liposomes. Dry-powder microparticles of spray-dried bedaquiline-loaded liposomes display a high fine particle fraction of >70%, as well as preserved liposomal integrity and targeting function. The antibiotic effect is maintained when deposited as powder aerosol on cultured Mycobacterium abscessus. When treating M. abscessus infected THP-1 cells, the fucosylated variant enabled enhanced bacterial killing, thus opening up a clear perspective for the improved treatment of nontuberculous mycobacterial infections.
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Affiliation(s)
- Benedikt C. Huck
- Department of Drug Delivery Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
- Department of Pharmacy Helmholtz Institute for Pharmaceutical Research Saarland Saarland University Campus E8 1 Saarbrücken 66123 Germany
| | - Durairaj Thiyagarajan
- Department of Anti‐infective Drug Discovery Helmholtz Institute for Pharmaceutical Research Saarland Campus E8 1 Saarbrücken 66123 Germany
| | - Aghiad Bali
- Department of Drug Delivery Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
- Department of Pharmacy Helmholtz Institute for Pharmaceutical Research Saarland Saarland University Campus E8 1 Saarbrücken 66123 Germany
| | - Annette Boese
- Department of Drug Delivery Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
| | | | | | - Robert K. Gieseler
- Rodos Biotarget GmbH Hannover 30625 Germany
- Laboratory of Immunology and Molecular Biology and Department of Internal Medicine University Hospital Knappschaftskrankenhaus Bochum Ruhr University Bochum Bochum 44892 Germany
| | | | - Cristiane Carvalho‐Wodarz
- Department of Drug Delivery Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
| | - Franziska Waldow
- Research Center Borstel Leibniz Lung Center Borstel 23845 Germany
- German Center for Infection Research Thematic Translational Unit Tuberculosis Partner Site Hamburg‐Lübeck‐Borstel‐Riems Braunschweig 38124 Germany
| | - Dominik Schwudke
- Research Center Borstel Leibniz Lung Center Borstel 23845 Germany
- German Center for Infection Research Thematic Translational Unit Tuberculosis Partner Site Hamburg‐Lübeck‐Borstel‐Riems Braunschweig 38124 Germany
- German Center for Lung Research (DZL) Airway Research Center North (ARCN) Kiel Nano Surface and Interface Science KiNSIS Kiel University Kiel 24118 Germany
| | - Olga Metelkina
- Chemical Biology of Carbohydrates (CBCH) Helmholtz‐Institute for Pharmaceutical Research Saarland (HIPS) Helmholtz Center for Infection Research Saarbrücken 66123 Germany
- Department of Chemistry Saarland University Saarbrücken 66123 Germany
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH) Helmholtz‐Institute for Pharmaceutical Research Saarland (HIPS) Helmholtz Center for Infection Research Saarbrücken 66123 Germany
- Department of Chemistry Saarland University Saarbrücken 66123 Germany
- Deutsches Zentrum für Infektionsforschung (DZIF) Hannover‐Braunschweig site Braunschweig 38124 Germany
| | - Hanno Huwer
- Cardiothoracic Surgery Heart Center Voelklingen Völklingen 66333 Germany
| | - Konrad Schwarzkopf
- Department of Anaesthesia and Intensive Care Klinikum Saarbrücken gGmbH Saarbrücken 66119 Germany
| | - Jessica Hoppstädter
- Pharmaceutical Biology Saarland University Campus C2 3 Saarbrücken 66123 Germany
| | - Alexandra K. Kiemer
- Pharmaceutical Biology Saarland University Campus C2 3 Saarbrücken 66123 Germany
| | - Marcus Koch
- INM – Leibniz Institute for New Materials Campus D2 2 Saarbrücken 66123 Germany
| | - Brigitta Loretz
- Department of Drug Delivery Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
| | - Claus‐Michael Lehr
- Department of Drug Delivery Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
- Department of Pharmacy Helmholtz Institute for Pharmaceutical Research Saarland Saarland University Campus E8 1 Saarbrücken 66123 Germany
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Mäder J, Voigtlaender M, Rolling C, Quick H, Schulenkorf A, Lehr C, Bokemeyer C, Beckmann L, Langer F. PO-31: The small-molecule FXIa inhibitor, BMS-26208, prevents tumor cell-induced coagulation activation predominantly in tumor entities with lower tissue factor (TF) expression. Thromb Res 2022. [DOI: 10.1016/s0049-3848(22)00221-3] [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: 11/24/2022]
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Richter R, Kamal MAM, Koch M, Niebuur B, Huber A, Goes A, Volz C, Vergalli J, Kraus T, Müller R, Schneider‐Daum N, Fuhrmann G, Pagès J, Lehr C. An Outer Membrane Vesicle-Based Permeation Assay (OMPA) for Assessing Bacterial Bioavailability. Adv Healthc Mater 2022; 11:e2101180. [PMID: 34614289 DOI: 10.1002/adhm.202101180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/14/2021] [Indexed: 11/11/2022]
Abstract
When searching for new antibiotics against Gram-negative bacterial infections, a better understanding of the permeability across the cell envelope and tools to discriminate high from low bacterial bioavailability compounds are urgently needed. Inspired by the phospholipid vesicle-based permeation assay (PVPA), which is designed to predict non-facilitated permeation across phospholipid membranes, outer membrane vesicles (OMVs) of Escherichia coli either enriched or deficient of porins are employed to coat filter supports for predicting drug uptake across the complex cell envelope. OMVs and the obtained in vitro model are structurally and functionally characterized using cryo-TEM, SEM, CLSM, SAXS, and light scattering techniques. In vitro permeability, obtained from the membrane model for a set of nine antibiotics, correlates with reported in bacterio accumulation data and allows to discriminate high from low accumulating antibiotics. In contrast, the correlation of the same data set generated by liposome-based comparator membranes is poor. This better correlation of the OMV-derived membranes points to the importance of hydrophilic membrane components, such as lipopolysaccharides and porins, since those features are lacking in liposomal comparator membranes. This approach can offer in the future a high throughput screening tool with high predictive capacity or can help to identify compound- and bacteria-specific passive uptake pathways.
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Affiliation(s)
- Robert Richter
- Helmholtz Centre for Infection Research Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
| | - Mohamed A. M. Kamal
- Helmholtz Centre for Infection Research Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
- Saarland University Department of Pharmacy Campus E8.1 Saarbrücken 66123 Germany
| | - Marcus Koch
- INM – Leibniz Institute for New Materials Campus D2.2 Saarbrücken 66123 Germany
| | - Bart‐Jan Niebuur
- INM – Leibniz Institute for New Materials Campus D2.2 Saarbrücken 66123 Germany
| | - Anna‐Lena Huber
- Helmholtz Centre for Infection Research Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
- Saarland University Department of Pharmacy Campus E8.1 Saarbrücken 66123 Germany
| | - Adriely Goes
- Helmholtz Centre for Infection Research Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
- Saarland University Department of Pharmacy Campus E8.1 Saarbrücken 66123 Germany
| | - Carsten Volz
- Helmholtz Centre for Infection Research Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
| | - Julia Vergalli
- UMR_MD1 U‐1261 Aix‐Marseille Université INSERM IRBA MCT Faculté de Pharmacie 27 Boulevard Jean Moulin Marseille 13005 France
| | - Tobias Kraus
- INM – Leibniz Institute for New Materials Campus D2.2 Saarbrücken 66123 Germany
- Colloid and Interface Chemistry Saarland University Campus D2.2 Saarbrücken 66123 Germany
| | - Rolf Müller
- Helmholtz Centre for Infection Research Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
- Saarland University Department of Pharmacy Campus E8.1 Saarbrücken 66123 Germany
| | - Nicole Schneider‐Daum
- Helmholtz Centre for Infection Research Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
| | - Gregor Fuhrmann
- Helmholtz Centre for Infection Research Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
- Saarland University Department of Pharmacy Campus E8.1 Saarbrücken 66123 Germany
| | - Jean‐Marie Pagès
- UMR_MD1 U‐1261 Aix‐Marseille Université INSERM IRBA MCT Faculté de Pharmacie 27 Boulevard Jean Moulin Marseille 13005 France
| | - Claus‐Michael Lehr
- Helmholtz Centre for Infection Research Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 Saarbrücken 66123 Germany
- Saarland University Department of Pharmacy Campus E8.1 Saarbrücken 66123 Germany
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6
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Mehanny M, Kroniger T, Koch M, Hoppstädter J, Becher D, Kiemer AK, Lehr C, Fuhrmann G. Yields and Immunomodulatory Effects of Pneumococcal Membrane Vesicles Differ with the Bacterial Growth Phase. Adv Healthc Mater 2022; 11:e2101151. [PMID: 34724354 DOI: 10.1002/adhm.202101151] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/22/2021] [Indexed: 12/20/2022]
Abstract
Streptococcus pneumoniae infections are a leading cause of death worldwide. Bacterial membrane vesicles (MVs) are promising vaccine candidates because of the antigenic components of their parent microorganisms. Pneumococcal MVs exhibit low toxicity towards several cell lines, but their clinical translation requires a high yield and strong immunogenic effects without compromising immune cell viability. MVs are isolated during either the stationary phase (24 h) or death phase (48 h), and their yields, immunogenicity and cytotoxicity in human primary macrophages and dendritic cells have been investigated. Death-phase vesicles showed higher yields than stationary-phase vesicles. Both vesicle types displayed acceptable compatibility with primary immune cells and several cell lines. Both vesicle types showed comparable uptake and enhanced release of the inflammatory cytokines, tumor necrosis factor and interleukin-6, from human primary immune cells. Proteomic analysis revealed similarities in vesicular immunogenic proteins such as pneumolysin, pneumococcal surface protein A, and IgA1 protease in both vesicle types, but stationary-phase MVs showed significantly lower autolysin levels than death-phase MVs. Although death-phase vesicles produced higher yields, they lacked superiority to stationary-phase vesicles as vaccine candidates owing to their similar antigenic protein cargo and comparable uptake into primary human immune cells.
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Affiliation(s)
- Mina Mehanny
- Helmholtz Institute for Pharmaceutical Research Saarland Biogenic Nanotherapeutics Group Campus E8.1 Saarbrücken 66123 Germany
- Department of Pharmacy Saarland University Campus E8.1 Saarbrücken 66123 Germany
- Department of Pharmaceutics and Industrial Pharmacy Faculty of Pharmacy Ain Shams University Cairo 11566 Egypt
| | - Tobias Kroniger
- Center for Functional Genomics of Microbes Department of Microbial Proteomics Institute of Microbiology University Greifswald Greifswald 17489 Germany
| | - Marcus Koch
- INM – Leibniz Institute for New Materials Campus D2.2 Saarbrücken 66123 Germany
| | - Jessica Hoppstädter
- Department of Pharmacy Pharmaceutical Biology Saarland University Saarbrücken 66123 Germany
| | - Dörte Becher
- Center for Functional Genomics of Microbes Department of Microbial Proteomics Institute of Microbiology University Greifswald Greifswald 17489 Germany
| | - Alexandra K. Kiemer
- Department of Pharmacy Pharmaceutical Biology Saarland University Saarbrücken 66123 Germany
| | - Claus‐Michael Lehr
- Department of Pharmacy Saarland University Campus E8.1 Saarbrücken 66123 Germany
- Helmholtz Institute for Pharmaceutical Research Saarland Drug Delivery Department Campus E8.1 Saarbrücken 66123 Germany
| | - Gregor Fuhrmann
- Helmholtz Institute for Pharmaceutical Research Saarland Biogenic Nanotherapeutics Group Campus E8.1 Saarbrücken 66123 Germany
- Department of Pharmacy Saarland University Campus E8.1 Saarbrücken 66123 Germany
- Friedrich‐Alexander‐University Erlangen‐Nürnberg Pharmaceutical Biology Department Biology Staudtstr. 5 Erlangen 91058 Germany
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7
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Browne F, Chen S, Doornenbal P, Obertelli A, Ogata K, Utsuno Y, Yoshida K, Achouri NL, Baba H, Calvet D, Château F, Chiga N, Corsi A, Cortés ML, Delbart A, Gheller JM, Giganon A, Gillibert A, Hilaire C, Isobe T, Kobayashi T, Kubota Y, Lapoux V, Liu HN, Motobayashi T, Murray I, Otsu H, Panin V, Paul N, Rodriguez W, Sakurai H, Sasano M, Steppenbeck D, Stuhl L, Sun YL, Togano Y, Uesaka T, Wimmer K, Yoneda K, Aktas O, Aumann T, Boretzky K, Caesar C, Chung LX, Flavigny F, Franchoo S, Gasparic I, Gerst RB, Gibelin J, Hahn KI, Holl M, Kahlbow J, Kim D, Körper D, Koiwai T, Kondo Y, Koseoglou P, Lee J, Lehr C, Linh BD, Lokotko T, MacCormick M, Miki K, Moschner K, Nakamura T, Park SY, Rossi D, Sahin E, Schindler F, Simon H, Söderström PA, Sohler D, Takeuchi S, Törnqvist H, Tscheuschner J, Vaquero V, Wagner V, Wang S, Werner V, Xu X, Yamada H, Yan D, Yang Z, Yasuda M, Zanetti L. Pairing Forces Govern Population of Doubly Magic ^{54}Ca from Direct Reactions. Phys Rev Lett 2021; 126:252501. [PMID: 34241497 DOI: 10.1103/physrevlett.126.252501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/03/2021] [Accepted: 03/29/2021] [Indexed: 06/13/2023]
Abstract
Direct proton-knockout reactions of ^{55}Sc at ∼220 MeV/nucleon were studied at the RIKEN Radioactive Isotope Beam Factory. Populated states of ^{54}Ca were investigated through γ-ray and invariant-mass spectroscopy. Level energies were calculated from the nuclear shell model employing a phenomenological internucleon interaction. Theoretical cross sections to states were calculated from distorted-wave impulse approximation estimates multiplied by the shell model spectroscopic factors, which describe the wave function overlap of the ^{55}Sc ground state with states in ^{54}Ca. Despite the calculations showing a significant amplitude of excited neutron configurations in the ground-state of ^{55}Sc, valence proton removals populated predominantly the ground state of ^{54}Ca. This counterintuitive result is attributed to pairing effects leading to a dominance of the ground-state spectroscopic factor. Owing to the ubiquity of the pairing interaction, this argument should be generally applicable to direct knockout reactions from odd-even to even-even nuclei.
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Affiliation(s)
- F Browne
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Chen
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, The University of Hong Kong, Pokfulam 999077, Hong Kong
- State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - P Doornenbal
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - A Obertelli
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - K Ogata
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
- Department of Physics, Osaka City University, Osaka 558-8585, Japan
| | - Y Utsuno
- Center for Nuclear Study, University of Tokyo, RIKEN campus, Wako, Saitama 351-0198, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - K Yoshida
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - N L Achouri
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - H Baba
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D Calvet
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - F Château
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - N Chiga
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - A Corsi
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M L Cortés
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - A Delbart
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - J-M Gheller
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Giganon
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Gillibert
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Hilaire
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - T Isobe
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Kobayashi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - Y Kubota
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Center for Nuclear Study, University of Tokyo, RIKEN campus, Wako, Saitama 351-0198, Japan
| | - V Lapoux
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - H N Liu
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- KTH Royal Institute of Technology, 10691 Stockholm, Sweden
| | - T Motobayashi
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - I Murray
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- IPN Orsay, CNRS and Univiersité Paris-Saclay, F-91406 Orsay Cedex, France
| | - H Otsu
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - V Panin
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Paul
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - W Rodriguez
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departmento de Física, Bogotá 111321, Colombia
- Pontificia Universidad Javeriana, Facultad de Ciencias, Departamento de Física, Bogotá, Colombia
| | - H Sakurai
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - M Sasano
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D Steppenbeck
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - L Stuhl
- Center for Nuclear Study, University of Tokyo, RIKEN campus, Wako, Saitama 351-0198, Japan
- Institute for Basic Science, Daejeon 34126, Korea
| | - Y L Sun
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Y Togano
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - T Uesaka
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Wimmer
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - K Yoneda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - O Aktas
- KTH Royal Institute of Technology, 10691 Stockholm, Sweden
| | - T Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany
| | - K Boretzky
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany
| | - C Caesar
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany
| | - L X Chung
- Institute for Nuclear Science & Technology, VINATOM, P.O. Box 5T-160, Nghia Do, Hanoi, Vietnam
| | - F Flavigny
- IPN Orsay, CNRS and Univiersité Paris-Saclay, F-91406 Orsay Cedex, France
| | - S Franchoo
- IPN Orsay, CNRS and Univiersité Paris-Saclay, F-91406 Orsay Cedex, France
| | - I Gasparic
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- Ruđer Bošković Institute, Bijenička cesta 54,10000 Zagreb, Croatia
| | - R-B Gerst
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
| | - J Gibelin
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - K I Hahn
- Ewha Womans University, Seoul 03760, Korea
- Institute for Basic Science, Daejeon 34126, Korea
| | - M Holl
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - J Kahlbow
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - D Kim
- Ewha Womans University, Seoul 03760, Korea
- Institute for Basic Science, Daejeon 34126, Korea
| | - D Körper
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany
| | - T Koiwai
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - P Koseoglou
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany
| | - J Lee
- Department of Physics, The University of Hong Kong, Pokfulam 999077, Hong Kong
| | - C Lehr
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - B D Linh
- Institute for Nuclear Science & Technology, VINATOM, P.O. Box 5T-160, Nghia Do, Hanoi, Vietnam
| | - T Lokotko
- Department of Physics, The University of Hong Kong, Pokfulam 999077, Hong Kong
| | - M MacCormick
- IPN Orsay, CNRS and Univiersité Paris-Saclay, F-91406 Orsay Cedex, France
| | - K Miki
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - K Moschner
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - S Y Park
- Ewha Womans University, Seoul 03760, Korea
- Institute for Basic Science, Daejeon 34126, Korea
| | - D Rossi
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany
| | - E Sahin
- Department of Physics, University of Oslo, N-0316 Oslo, Norway
| | - F Schindler
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - H Simon
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany
| | - P-A Söderström
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - D Sohler
- Atomki, P.O. Box 51, Debrecen H-4001, Hungary
| | - S Takeuchi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - H Törnqvist
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt, Germany
| | - J Tscheuschner
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - V Vaquero
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - V Wagner
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - S Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - V Werner
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - X Xu
- Department of Physics, The University of Hong Kong, Pokfulam 999077, Hong Kong
| | - H Yamada
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - D Yan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z Yang
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - M Yasuda
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - L Zanetti
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
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8
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Schütz C, Ho D, Hamed MM, Abdelsamie AS, Röhrig T, Herr C, Kany AM, Rox K, Schmelz S, Siebenbürger L, Wirth M, Börger C, Yahiaoui S, Bals R, Scrima A, Blankenfeldt W, Horstmann JC, Christmann R, Murgia X, Koch M, Berwanger A, Loretz B, Hirsch AKH, Hartmann RW, Lehr C, Empting M. A New PqsR Inverse Agonist Potentiates Tobramycin Efficacy to Eradicate Pseudomonas aeruginosa Biofilms. Adv Sci (Weinh) 2021; 8:e2004369. [PMID: 34165899 PMCID: PMC8224453 DOI: 10.1002/advs.202004369] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [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] [Received: 11/13/2020] [Revised: 01/21/2021] [Indexed: 05/21/2023]
Abstract
Pseudomonas aeruginosa (PA) infections can be notoriously difficult to treat and are often accompanied by the development of antimicrobial resistance (AMR). Quorum sensing inhibitors (QSI) acting on PqsR (MvfR) - a crucial transcriptional regulator serving major functions in PA virulence - can enhance antibiotic efficacy and eventually prevent the AMR. An integrated drug discovery campaign including design, medicinal chemistry-driven hit-to-lead optimization and in-depth biological profiling of a new QSI generation is reported. The QSI possess excellent activity in inhibiting pyocyanin production and PqsR reporter-gene with IC50 values as low as 200 and 11 × 10-9 m, respectively. Drug metabolism and pharmacokinetics (DMPK) as well as safety pharmacology studies especially highlight the promising translational properties of the lead QSI for pulmonary applications. Moreover, target engagement of the lead QSI is shown in a PA mucoid lung infection mouse model. Beyond that, a significant synergistic effect of a QSI-tobramycin (Tob) combination against PA biofilms using a tailor-made squalene-derived nanoparticle (NP) formulation, which enhance the minimum biofilm eradicating concentration (MBEC) of Tob more than 32-fold is demonstrated. The novel lead QSI and the accompanying NP formulation highlight the potential of adjunctive pathoblocker-mediated therapy against PA infections opening up avenues for preclinical development.
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9
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Ho D, Murgia X, De Rossi C, Christmann R, Hüfner de Mello Martins AG, Koch M, Andreas A, Herrmann J, Müller R, Empting M, Hartmann RW, Desmaele D, Loretz B, Couvreur P, Lehr C. Cover Picture: Squalenyl Hydrogen Sulfate Nanoparticles for Simultaneous Delivery of Tobramycin and an Alkylquinolone Quorum Sensing Inhibitor Enable the Eradication of
P. aeruginosa
Biofilm Infections (Angew. Chem. Int. Ed. 26/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.202005838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Duy‐Khiet Ho
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
- Current address: Department of Bioengineering School of Medicine University of Washington Seattle WA 98195 USA
| | - Xabier Murgia
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
- Current address: Kusudama Therapeutics Parque Científico y Tecnológico de Gipuzkoa 20014 Donostia-San Sebastián Spain
| | - Chiara De Rossi
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
| | - Rebekka Christmann
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | | | - Marcus Koch
- INM—Leibniz Institute for New Materials 66123 Saarbrücken Germany
| | - Anastasia Andreas
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
| | - Jennifer Herrmann
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | - Martin Empting
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | - Rolf W. Hartmann
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | - Didier Desmaele
- Faculté de Pharmacie Institut Galien Paris Sud Université Paris-Saclay, UMR CNRS 8612 92296 Châtenay-Malabry France
| | - Brigitta Loretz
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
| | - Patrick Couvreur
- Faculté de Pharmacie Institut Galien Paris Sud Université Paris-Saclay, UMR CNRS 8612 92296 Châtenay-Malabry France
| | - Claus‐Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
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10
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Ho D, Murgia X, De Rossi C, Christmann R, Hüfner de Mello Martins AG, Koch M, Andreas A, Herrmann J, Müller R, Empting M, Hartmann RW, Desmaele D, Loretz B, Couvreur P, Lehr C. Titelbild: Squalenyl Hydrogen Sulfate Nanoparticles for Simultaneous Delivery of Tobramycin and an Alkylquinolone Quorum Sensing Inhibitor Enable the Eradication of
P. aeruginosa
Biofilm Infections (Angew. Chem. 26/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005838] [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: 11/07/2022]
Affiliation(s)
- Duy‐Khiet Ho
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
- Current address: Department of Bioengineering School of Medicine University of Washington Seattle WA 98195 USA
| | - Xabier Murgia
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
- Current address: Kusudama Therapeutics Parque Científico y Tecnológico de Gipuzkoa 20014 Donostia-San Sebastián Spain
| | - Chiara De Rossi
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
| | - Rebekka Christmann
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | | | - Marcus Koch
- INM—Leibniz Institute for New Materials 66123 Saarbrücken Germany
| | - Anastasia Andreas
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
| | - Jennifer Herrmann
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | - Martin Empting
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | - Rolf W. Hartmann
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | - Didier Desmaele
- Faculté de Pharmacie Institut Galien Paris Sud Université Paris-Saclay, UMR CNRS 8612 92296 Châtenay-Malabry France
| | - Brigitta Loretz
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
| | - Patrick Couvreur
- Faculté de Pharmacie Institut Galien Paris Sud Université Paris-Saclay, UMR CNRS 8612 92296 Châtenay-Malabry France
| | - Claus‐Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
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11
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Ho D, Murgia X, De Rossi C, Christmann R, Hüfner de Mello Martins AG, Koch M, Andreas A, Herrmann J, Müller R, Empting M, Hartmann RW, Desmaele D, Loretz B, Couvreur P, Lehr C. Squalenyl Hydrogen Sulfate Nanoparticles for Simultaneous Delivery of Tobramycin and an Alkylquinolone Quorum Sensing Inhibitor Enable the Eradication of
P. aeruginosa
Biofilm Infections. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001407] [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)
- Duy‐Khiet Ho
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
- Current address: Department of Bioengineering School of Medicine University of Washington Seattle WA 98195 USA
| | - Xabier Murgia
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
- Current address: Kusudama Therapeutics Parque Científico y Tecnológico de Gipuzkoa 20014 Donostia-San Sebastián Spain
| | - Chiara De Rossi
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
| | - Rebekka Christmann
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | | | - Marcus Koch
- INM—Leibniz Institute for New Materials 66123 Saarbrücken Germany
| | - Anastasia Andreas
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
| | - Jennifer Herrmann
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | - Martin Empting
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | - Rolf W. Hartmann
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- German Centre for Infection Research (DZIF) Partner Site Hannover-Braunschweig 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
| | - Didier Desmaele
- Faculté de Pharmacie Institut Galien Paris Sud Université Paris-Saclay, UMR CNRS 8612 92296 Châtenay-Malabry France
| | - Brigitta Loretz
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
| | - Patrick Couvreur
- Faculté de Pharmacie Institut Galien Paris Sud Université Paris-Saclay, UMR CNRS 8612 92296 Châtenay-Malabry France
| | - Claus‐Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland Helmholtz Center for Infection Research 66123 Saarbrücken Germany
- Department of Pharmacy Saarland University 66123 Saarbrücken Germany
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12
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Ahmad U, Siddiqui H, Rappaport J, Gabbard S, Tang A, Lane C, Akindipe O, Gadre S, Lehr C, Mehta A, Budev M, Bribriesco A, McCurry K, Blackstone E, Murthy S. Should Pre-Transplant Esophageal Dysmotility Preclude Candidacy for Lung Transplantation? J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1015] [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: 11/28/2022] Open
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13
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Chen S, Lee J, Doornenbal P, Obertelli A, Barbieri C, Chazono Y, Navrátil P, Ogata K, Otsuka T, Raimondi F, Somà V, Utsuno Y, Yoshida K, Baba H, Browne F, Calvet D, Château F, Chiga N, Corsi A, Cortés ML, Delbart A, Gheller JM, Giganon A, Gillibert A, Hilaire C, Isobe T, Kahlbow J, Kobayashi T, Kubota Y, Lapoux V, Liu HN, Motobayashi T, Murray I, Otsu H, Panin V, Paul N, Rodriguez W, Sakurai H, Sasano M, Steppenbeck D, Stuhl L, Sun YL, Togano Y, Uesaka T, Wimmer K, Yoneda K, Achouri N, Aktas O, Aumann T, Chung LX, Flavigny F, Franchoo S, Gašparić I, Gerst RB, Gibelin J, Hahn KI, Kim D, Koiwai T, Kondo Y, Koseoglou P, Lehr C, Linh BD, Lokotko T, MacCormick M, Moschner K, Nakamura T, Park SY, Rossi D, Sahin E, Sohler D, Söderström PA, Takeuchi S, Törnqvist H, Vaquero V, Wagner V, Wang S, Werner V, Xu X, Yamada H, Yan D, Yang Z, Yasuda M, Zanetti L. Quasifree Neutron Knockout from ^{54}Ca Corroborates Arising N=34 Neutron Magic Number. Phys Rev Lett 2019; 123:142501. [PMID: 31702209 DOI: 10.1103/physrevlett.123.142501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Indexed: 06/10/2023]
Abstract
Exclusive cross sections and momentum distributions have been measured for quasifree one-neutron knockout reactions from a ^{54}Ca beam striking on a liquid hydrogen target at ∼200 MeV/u. A significantly larger cross section to the p_{3/2} state compared to the f_{5/2} state observed in the excitation of ^{53}Ca provides direct evidence for the nature of the N=34 shell closure. This finding corroborates the arising of a new shell closure in neutron-rich calcium isotopes. The distorted-wave impulse approximation reaction formalism with shell model calculations using the effective GXPF1Bs interaction and ab initio calculations concur our experimental findings. Obtained transverse and parallel momentum distributions demonstrate the sensitivity of quasifree one-neutron knockout in inverse kinematics on a thick liquid hydrogen target with the reaction vertex reconstructed to final state spin-parity assignments.
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Affiliation(s)
- S Chen
- Department of Physics, The University of Hong Kong, Pokfulam, 999077, Hong Kong
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - J Lee
- Department of Physics, The University of Hong Kong, Pokfulam, 999077, Hong Kong
| | - P Doornenbal
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - A Obertelli
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - C Barbieri
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Y Chazono
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - P Navrátil
- TRIUMF, 4004 Westbrook Mall, Vancouver, BC, V6T 2A3, Canada
| | - K Ogata
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - T Otsuka
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Department of Physics and Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium
| | - F Raimondi
- ESNT, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - V Somà
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Y Utsuno
- Department of Physics and Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - K Yoshida
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - H Baba
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - F Browne
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - D Calvet
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - F Château
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - N Chiga
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - A Corsi
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - M L Cortés
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - A Delbart
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - J-M Gheller
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - A Giganon
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - A Gillibert
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - C Hilaire
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - T Isobe
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - J Kahlbow
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - T Kobayashi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - Y Kubota
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Center for Nuclear Study, University of Tokyo, RIKEN campus, Wako, Saitama 351-0198, Japan
| | - V Lapoux
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - H N Liu
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | | | - I Murray
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - H Otsu
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - V Panin
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - N Paul
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - W Rodriguez
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Universidad Nacional de Colombia, Sede Bogota, Facultad de Ciencias, Departamento de Fisica, Bogotá 111321, Colombia
| | - H Sakurai
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - M Sasano
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | | | - L Stuhl
- Center for Nuclear Study, University of Tokyo, RIKEN campus, Wako, Saitama 351-0198, Japan
| | - Y L Sun
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - Y Togano
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 172-8501, Japan
| | - T Uesaka
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Wimmer
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - K Yoneda
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - N Achouri
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - O Aktas
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - T Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - L X Chung
- Institute for Nuclear Science and Technology, VINATOM, P.O. Box 5T-160, Nghia Do, Hanoi, Vietnam
| | - F Flavigny
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - S Franchoo
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - I Gašparić
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Ruđer Bošković Institute, Bijenička cesta 54,10000 Zagreb, Croatia
| | - R-B Gerst
- Institut für Kernphysik, Universität zu Köln, 50923 Köln, Germany
| | - J Gibelin
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - K I Hahn
- Department of Science Education and Department of Physics, Ewha Womans University, Seoul 03760, Korea
| | - D Kim
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Department of Science Education and Department of Physics, Ewha Womans University, Seoul 03760, Korea
| | - T Koiwai
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - P Koseoglou
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - C Lehr
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - B D Linh
- Institute for Nuclear Science and Technology, VINATOM, P.O. Box 5T-160, Nghia Do, Hanoi, Vietnam
| | - T Lokotko
- Department of Physics, The University of Hong Kong, Pokfulam, 999077, Hong Kong
| | - M MacCormick
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - K Moschner
- Institut für Kernphysik, Universität zu Köln, 50923 Köln, Germany
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - S Y Park
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Department of Science Education and Department of Physics, Ewha Womans University, Seoul 03760, Korea
| | - D Rossi
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - E Sahin
- Department of Physics, University of Oslo, N-0316 Oslo, Norway
| | - D Sohler
- Institute for Nuclear Research of the Hungarian Academy of Sciences (MTA Atomki), P.O. Box 51, Debrecen H-4001, Hungary
| | - P-A Söderström
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - S Takeuchi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - H Törnqvist
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - V Vaquero
- Instituto de Estructura de la Materia, CSIC, 28006 Madrid, Spain
| | - V Wagner
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - S Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - V Werner
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - X Xu
- Department of Physics, The University of Hong Kong, Pokfulam, 999077, Hong Kong
| | - H Yamada
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - D Yan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z Yang
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - M Yasuda
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - L Zanetti
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
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14
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Menina S, Eisenbeis J, Kamal MAM, Koch M, Bischoff M, Gordon S, Loretz B, Lehr C. Bioinspired Liposomes for Oral Delivery of Colistin to Combat Intracellular Infections by Salmonella enterica. Adv Healthc Mater 2019; 8:e1900564. [PMID: 31328434 DOI: 10.1002/adhm.201900564] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/27/2019] [Indexed: 01/07/2023]
Abstract
Bacterial invasion into eukaryotic cells and the establishment of intracellular infection has proven to be an effective means of resisting antibiotic action, as anti-infective agents commonly exhibit a poor permeability across the host cell membrane. Encapsulation of anti-infectives into nanoscaled delivery systems, such as liposomes, is shown to result in an enhancement of intracellular delivery. The aim of the current work is, therefore, to formulate colistin, a poorly permeable anti-infective, into liposomes suitable for oral delivery, and to functionalize these carriers with a bacteria-derived invasive moiety to enhance their intracellular delivery. Different combinations of phospholipids and cholesterol are explored to optimize liposomal drug encapsulation and stability in biorelevant media. These liposomes are then surface-functionalized with extracellular adherence protein (Eap), derived from Staphylococcus aureus. Treatment of HEp-2 and Caco-2 cells infected with Salmonella enterica using colistin-containing, Eap-functionalized liposomes resulted in a significant reduction of intracellular bacteria, in comparison to treatment with nonfunctionalized liposomes as well as colistin alone. This indicates that such bio-invasive carriers are able to facilitate intracellular delivery of colistin, as necessary for intracellular anti-infective activity. The developed Eap-functionalized liposomes, therefore, present a promising strategy for improving the therapy of intracellular infections.
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Affiliation(s)
- Sara Menina
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Center for Infection Research (HZI) Saarbrücken 66123 Germany
- Department of PharmacySaarland University Saarbrücken 66123 Germany
| | - Janina Eisenbeis
- Institute of Medical Microbiology and HygieneSaarland University Homburg 66421 Germany
| | - Mohamed Ashraf M. Kamal
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Center for Infection Research (HZI) Saarbrücken 66123 Germany
| | - Marcus Koch
- Institute for New MaterialsSaarland University Saarbrücken 66123 Germany
| | - Markus Bischoff
- Institute of Medical Microbiology and HygieneSaarland University Homburg 66421 Germany
| | - Sarah Gordon
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Center for Infection Research (HZI) Saarbrücken 66123 Germany
- School of Pharmacy and Biomolecular SciencesJohn Moores University Liverpool L3 3AF UK
| | - Brigitta Loretz
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Center for Infection Research (HZI) Saarbrücken 66123 Germany
| | - Claus‐Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Center for Infection Research (HZI) Saarbrücken 66123 Germany
- Department of PharmacySaarland University Saarbrücken 66123 Germany
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15
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Liu HN, Obertelli A, Doornenbal P, Bertulani CA, Hagen G, Holt JD, Jansen GR, Morris TD, Schwenk A, Stroberg R, Achouri N, Baba H, Browne F, Calvet D, Château F, Chen S, Chiga N, Corsi A, Cortés ML, Delbart A, Gheller JM, Giganon A, Gillibert A, Hilaire C, Isobe T, Kobayashi T, Kubota Y, Lapoux V, Motobayashi T, Murray I, Otsu H, Panin V, Paul N, Rodriguez W, Sakurai H, Sasano M, Steppenbeck D, Stuhl L, Sun YL, Togano Y, Uesaka T, Wimmer K, Yoneda K, Aktas O, Aumann T, Chung LX, Flavigny F, Franchoo S, Gašparić I, Gerst RB, Gibelin J, Hahn KI, Kim D, Koiwai T, Kondo Y, Koseoglou P, Lee J, Lehr C, Linh BD, Lokotko T, MacCormick M, Moschner K, Nakamura T, Park SY, Rossi D, Sahin E, Sohler D, Söderström PA, Takeuchi S, Törnqvist H, Vaquero V, Wagner V, Wang S, Werner V, Xu X, Yamada H, Yan D, Yang Z, Yasuda M, Zanetti L. How Robust is the N=34 Subshell Closure? First Spectroscopy of ^{52}Ar. Phys Rev Lett 2019; 122:072502. [PMID: 30848641 DOI: 10.1103/physrevlett.122.072502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/22/2019] [Indexed: 06/09/2023]
Abstract
The first γ-ray spectroscopy of ^{52}Ar, with the neutron number N=34, was measured using the ^{53}K(p,2p) one-proton removal reaction at ∼210 MeV/u at the RIBF facility. The 2_{1}^{+} excitation energy is found at 1656(18) keV, the highest among the Ar isotopes with N>20. This result is the first experimental signature of the persistence of the N=34 subshell closure beyond ^{54}Ca, i.e., below the magic proton number Z=20. Shell-model calculations with phenomenological and chiral-effective-field-theory interactions both reproduce the measured 2_{1}^{+} systematics of neutron-rich Ar isotopes, and support a N=34 subshell closure in ^{52}Ar.
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Affiliation(s)
- H N Liu
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - A Obertelli
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - P Doornenbal
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - C A Bertulani
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- Texas A&M University-Commerce, P.O. Box 3011, Commerce, Texas 75429, USA
| | - G Hagen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - J D Holt
- TRIUMF 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - G R Jansen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- National Center for Computational Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - T D Morris
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - A Schwenk
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - R Stroberg
- TRIUMF 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - N Achouri
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - H Baba
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - F Browne
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D Calvet
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - F Château
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Chen
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, People's Republic of China
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - N Chiga
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - A Corsi
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M L Cortés
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - A Delbart
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - J-M Gheller
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Giganon
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Gillibert
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Hilaire
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - T Isobe
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Kobayashi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - Y Kubota
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Center for Nuclear Study, University of Tokyo, RIKEN campus, Wako, Saitama 351-0198, Japan
| | - V Lapoux
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - T Motobayashi
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - I Murray
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - H Otsu
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - V Panin
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Paul
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - W Rodriguez
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Universidad Nacional de Colombia, Sede Bogota, Facultad de Ciencias, Departamento de Física, 111321, Bogotá, Colombia
| | - H Sakurai
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - M Sasano
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D Steppenbeck
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - L Stuhl
- Center for Nuclear Study, University of Tokyo, RIKEN campus, Wako, Saitama 351-0198, Japan
| | - Y L Sun
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - Y Togano
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 172-8501, Japan
| | - T Uesaka
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Wimmer
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - K Yoneda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - O Aktas
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - T Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - L X Chung
- Institute for Nuclear Science & Technology, VINATOM, P.O. Box 5T-160, Nghia Do, Hanoi, Vietnam
| | - F Flavigny
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - S Franchoo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - I Gašparić
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - R-B Gerst
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
| | - J Gibelin
- LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen, France
| | - K I Hahn
- Ewha Womans University, Seoul 120-750, Korea
| | - D Kim
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Ewha Womans University, Seoul 120-750, Korea
| | - T Koiwai
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - P Koseoglou
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- GSI Helmoltzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - J Lee
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - C Lehr
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - B D Linh
- Institute for Nuclear Science & Technology, VINATOM, P.O. Box 5T-160, Nghia Do, Hanoi, Vietnam
| | - T Lokotko
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - M MacCormick
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - K Moschner
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - S Y Park
- Ewha Womans University, Seoul 120-750, Korea
| | - D Rossi
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - E Sahin
- Department of Physics, University of Oslo, N-0316 Oslo, Norway
| | - D Sohler
- MTA Atomki, P.O. Box 51, Debrecen H-4001, Hungary
| | - P-A Söderström
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - S Takeuchi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - H Törnqvist
- GSI Helmoltzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - V Vaquero
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - V Wagner
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - S Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - V Werner
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - X Xu
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - H Yamada
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - D Yan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z Yang
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - M Yasuda
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo, 152-8551, Japan
| | - L Zanetti
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
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Abstract
Injuries of the penis are uncommon but represent urological emergencies. We report 3 cases of penile trauma illustrating the diversity of penile injury presentation. Radiological investigations are only mandatory if there is any suspicion of a urethral injury. Primary surgical approach is recommended in cases of penile fracture or local wound infection. An immediate operative exploration with removal of hematoma and primary defect closure should be done in every case. Surgical management should not be delayed to avoid late complications.
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Affiliation(s)
- M Maruschke
- Department of Urology, University of Rostock, Rostock, Germany.
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17
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Diegisser T, Johannesen J, Lehr C, Seitz A. Genetic and morphological differentiation in Tephritis bardanae (Diptera: Tephritidae): evidence for host-race formation. J Evol Biol 2004; 17:83-93. [PMID: 15000651 DOI: 10.1046/j.1420-9101.2003.00637.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The fruit fly Tephritis bardanae infests flower heads of two burdock hosts, Arctium tomentosum and A. minus. Observations suggest host-associated mating and behavioural differences at oviposition indicating host-race status. Previously, flies from each host plant were found to differ slightly in allozyme allele frequencies, but these differences could as well be explained by geographical separation of host plants. In the present study, we explicitly test whether genetic and morphological variance among T. bardanae are explained best by host-plant association or by geographical location, and if this pattern is stable over a 10-year period. Populations of A. tomentosum flies differed significantly from those of A. minus flies in (i) allozyme allele frequencies at the loci Pep-A and Pgd, (ii) mtDNA haplotype frequencies and (iii) wing size. In contrast, geographical location had no significant influence on the variance estimates. While it remains uncertain whether morphometric differentiation reflects genotypic variability or phenotypic plasticity, allozyme and mtDNA differentiation is genetically determined. This provides strong evidence for host-race formation in T. bardanae. However, the levels of differentiation are relatively low indicating that the system is in an early stage of divergence. This might be due to a lack of time (i.e. the host shift occurred recently) or due to relatively high gene flow preventing much differentiation at loci not experiencing selection.
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Affiliation(s)
- T Diegisser
- Institut für Zoologie, Abteilung für Okologie, Universität Mainz, Mainz, Germany.
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18
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Lamprecht A, Ubrich N, Hombreiro Pérez M, Lehr C, Hoffman M, Maincent P. Influences of process parameters on nanoparticle preparation performed by a double emulsion pressure homogenization technique. Int J Pharm 2000; 196:177-82. [PMID: 10699713 DOI: 10.1016/s0378-5173(99)00422-6] [Citation(s) in RCA: 125] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The preparation of nanoparticles (NP) as an improved colloidal carrier system for proteins was investigated. Bovine serum albumin (BSA) was used as model drug. Owing to the high solubility of the protein in water, the double emulsion technique has been chosen as one of the most appropriate method. In order to both reaching submicron size as well as increasing the grade of monodispersity compared to previous preparation techniques, a microfluidizer as homogenization device was used. All experiments were performed using two biodegradable polymers, poly[D,L-lactic-co-glycolic acid] 50/50 (PLGA) and poly[epsilon-caprolactone] (PCL). The homogenization procedure has been optimized with regard to particle size and monodispersity by studying the influence of the homogenization time as well as the amount of polymer and surfactant in the external aqueous phase. The drug loading has been improved by varying the concentration of the protein in the inner aqueous phase. By increasing the protein concentration in the inner aqueous phase the polydispersity was slightly higher, while the particle size was not influenced significantly. The BSA encapsulation efficiency decreased with higher protein concentration in the inner aqueous phase. All release profiles were characterized by a initial burst effect, a higher release rate was obtained after 4 weeks for PLGA NP (60%) compared with PCL NP (47%).
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Affiliation(s)
- A Lamprecht
- Laboratoire de Pharmacie Galénique et Biopharmacie, Faculté de Pharmacie, BP 403, 5 rue A. Lebrun, 54001, Nancy, France
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Lamprecht A, Schäfer UF, Lehr C. Characterization of microcapsules by confocal laser scanning microscopy: structure, capsule wall composition and encapsulation rate. Eur J Pharm Biopharm 2000; 49:1-9. [PMID: 10613921 DOI: 10.1016/s0939-6411(99)00063-6] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The potential of confocal laser scanning microscope (CLSM) has been evaluated for characterizing microcapsules. The aim was to visualize the polymer distribution within the particle wall, and to localize and to quantify the encapsulated oil phase. Microcapsules were prepared by complex coacervation: the oil phase, gelatine, and arabic gum were labelled with fluorescent markers. For all compounds it was proved that fluorescence labelling did not alter physico-chemical properties critical to the encapsulation process. Labelling of the inner oil phase allowed us to identify and to localize, three-dimensionally, the encapsulated compound. A homogeneous distribution for both gelatine and arabic gum throughout the capsule wall was observed. The addition of fluorescently labelled casein as a macromolecular model compound to the coacervate resulted in an inhomogeneous distribution of casein within the wall material, the highest concentration of casein was found at the oil-wall interface. To determine the encapsulation rate, CLSM pictures of the microcapsule samples were acquired using different fluorescence labels for the microcapsule wall polymers and the incorporated oil phase, respectively. By applying computational image analysis, the volumes of the different phases were calculated. Comparing the results of non-destructive image analysis with those obtained by degradation, extraction and chemical analysis, a linear relation was found with correlation coefficients better than 0.980.
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Affiliation(s)
- A Lamprecht
- Department of Biopharmaceutics and Pharmaceutical Technology, Saarland University, Saarbrücken, Germany
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Lamprecht A, Ubrich N, Hombreiro Pérez M, Lehr C, Hoffman M, Maincent P. Biodegradable monodispersed nanoparticles prepared by pressure homogenization-emulsification. Int J Pharm 1999; 184:97-105. [PMID: 10425355 DOI: 10.1016/s0378-5173(99)00107-6] [Citation(s) in RCA: 129] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The aim of the present work was to investigate the preparation of nanoparticles (NP) as potential drug carriers for proteins. The hydrophilic protein bovine serum albumin (BSA) was chosen as the model drug to be incorporated within NP. Owing to the high solubility of the protein in water, the double emulsion technique has been chosen as one of the most appropriate method. In order to reach submicron size we used a microfluidizer as a homogenization device with a view to obtaining NP with a very high grade of monodispersity. Two different biodegradable polymers, poly[D, L-lactic-co-glycolic acid] 50/50 (PLGA) and poly[epsilon-caprolactone] (PCL) has been used for the preparation of the NP. The drug loading has been optimized by varying the concentration of the protein in the inner aqueous phase, the polymer in the organic phase, the surfactant in the external aqueous phase, as well as the volume of the external aqueous phase. The BSA encapsulation efficiency was high (>80%) and release profiles were characterized by a substantial initial burst release for both PLGA and PCL NP. A higher release was obtained at the end of the dissolution study for PLGA NP (92%) compared with PCL NP (72%).
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Affiliation(s)
- A Lamprecht
- Laboratoire de Pharmacie Galénique et Biopharmacie, Faculté de Pharmacie, BP 403, 5 rue A. Lebrun, 54001, Nancy Cedex, France
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Abstract
In this paper we present a method for measuring the wear of the polyethylene inlay in knee joint endoprostheses from standard X-ray images. Our approach is to estimate the spatial position of the tibial and femoral components of the prostheses from their contours in the X-ray image. When we know the exact shape of these two components, we can calculate the minimal spatial distance between them which approximates the remaining thickness of the inlay. First results show that this approach might provide sufficient accuracy for the given task.
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Affiliation(s)
- U Rost
- Abteilung Automatische Bildinterpretation, Universität Hannover
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22
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Jayappa HG, Lehr C. Pathogenicity and immunogenicity of piliated and nonpiliated phases of Moraxella bovis in calves. Am J Vet Res 1986; 47:2217-21. [PMID: 2877604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Pathogenicity evaluations of Moraxella bovis strain EPP 63 grown in the piliated and nonpiliated phase indicated that the organism grown in the piliated phase induced clinical keratoconjunctivitis, whereas the organism grown in the nonpiliated phase did not induce disease under identical challenge conditions. Calves inoculated with culture grown in the piliated phase developed significantly (P less than 0.01) higher lesion scores than did calves inoculated with culture grown in the nonpiliated phase. Vaccination/challenge exposure evaluations indicated that calves immunized with vaccine prepared from piliated culture had significantly lower lesion scores than did control calves (P less than 0.001) or calves immunized with vaccine prepared from nonpiliated culture (P less than 0.05). Similarly, calves immunized with piliated vaccine developed a significantly higher antibody titer against purified pili. Nonvaccinated controls and calves immunized with nonpiliated vaccine did not develop a significant increase in antibody titer. The results indicate that M bovis pili constitute an important factor in the pathogenicity of keratoconjunctivitis and may be used as a vaccine in the control of keratoconjunctivitis in cattle.
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23
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Abstract
Two cases of scleroderma and carcinoma of the lung are reported. The 16 previously reported cases in the English literature are reviewed and tabulated in an attempt to determine the pathological and clinical presentation of carcinoma of the lung superimposed on the sclerodermal lung. When patients with scleroderma develop a change in pulmonary symptoms, a superimposed cancer of the lung should be suspected. The relationship between interstitial pulmonary inflammatory disease and cancer of the lung is discussed.
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