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Grevot A, Boisclair J, Guffroy M, Hall P, Pohlmeyer-Esch G, Jacobsen M, Bach U, Frisk AL, Dybdal N, Palazzi X. Toxicologic Pathology Forum Opinion Piece: Use of Virtual Control Groups in Nonclinical Toxicity Studies: The Anatomic Pathology Perspective. Toxicol Pathol 2023; 51:390-396. [PMID: 38293937 DOI: 10.1177/01926233231224805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
In the last decade, numerous initiatives have emerged worldwide to reduce the use of animals in drug development, including more recently the introduction of Virtual Control Groups (VCGs) concept for nonclinical toxicity studies. Although replacement of concurrent controls (CCs) by virtual controls (VCs) represents an exciting opportunity, there are associated challenges that will be discussed in this paper with a more specific focus on anatomic pathology. Coordinated efforts will be needed from toxicologists, clinical and anatomic pathologists, and regulators to support approaches that will facilitate a staggered implementation of VCGs in nonclinical toxicity studies. Notably, the authors believe that a validated database for VC animals will need to include histopathology (digital) slides for microscopic assessment. Ultimately, the most important step lies in the validation of the concept by performing VCG and the full control group in parallel for studies of varying duration over a reasonable timespan to confirm there are no differences in outcomes (dual study design). The authors also discuss a hybrid approach, whereby control groups comprised both concurrent and VCs to demonstrate proof-of-concept. Once confidence is established by sponsors and regulators, VCs have the potential to replace some or all CC animals.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Noel Dybdal
- Genentech Inc., South San Francisco, California, USA
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2
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Kirsten F, Marcote B, Nimmo K, Hessels JWT, Bhardwaj M, Tendulkar SP, Keimpema A, Yang J, Snelders MP, Scholz P, Pearlman AB, Law CJ, Peters WM, Giroletti M, Paragi Z, Bassa C, Hewitt DM, Bach U, Bezrukovs V, Burgay M, Buttaccio ST, Conway JE, Corongiu A, Feiler R, Forssén O, Gawroński MP, Karuppusamy R, Kharinov MA, Lindqvist M, Maccaferri G, Melnikov A, Ould-Boukattine OS, Possenti A, Surcis G, Wang N, Yuan J, Aggarwal K, Anna-Thomas R, Bower GC, Blaauw R, Burke-Spolaor S, Cassanelli T, Clarke TE, Fonseca E, Gaensler BM, Gopinath A, Kaspi VM, Kassim N, Lazio TJW, Leung C, Li DZ, Lin HH, Masui KW, Mckinven R, Michilli D, Mikhailov AG, Ng C, Orbidans A, Pen UL, Petroff E, Rahman M, Ransom SM, Shin K, Smith KM, Stairs IH, Vlemmings W. A repeating fast radio burst source in a globular cluster. Nature 2022; 602:585-589. [PMID: 35197615 DOI: 10.1038/s41586-021-04354-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 12/15/2021] [Indexed: 11/09/2022]
Abstract
Fast radio bursts (FRBs) are flashes of unknown physical origin1. The majority of FRBs have been seen only once, although some are known to generate multiple flashes2,3. Many models invoke magnetically powered neutron stars (magnetars) as the source of the emission4,5. Recently, the discovery6 of another repeater (FRB 20200120E) was announced, in the direction of the nearby galaxy M81, with four potential counterparts at other wavelengths6. Here we report observations that localized the FRB to a globular cluster associated with M81, where it is 2 parsecs away from the optical centre of the cluster. Globular clusters host old stellar populations, challenging FRB models that invoke young magnetars formed in a core-collapse supernova. We propose instead that FRB 20200120E originates from a highly magnetized neutron star formed either through the accretion-induced collapse of a white dwarf, or the merger of compact stars in a binary system7. Compact binaries are efficiently formed inside globular clusters, so a model invoking them could also be responsible for the observed bursts.
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Affiliation(s)
- F Kirsten
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden. .,ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands.
| | - B Marcote
- Joint Institute for VLBI ERIC, Dwingeloo, The Netherlands
| | - K Nimmo
- ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands.,Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - J W T Hessels
- ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands.,Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - M Bhardwaj
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada
| | - S P Tendulkar
- Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Mumbai, India.,National Centre for Radio Astrophysics, Pune, India
| | - A Keimpema
- Joint Institute for VLBI ERIC, Dwingeloo, The Netherlands
| | - J Yang
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
| | - M P Snelders
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - P Scholz
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - A B Pearlman
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada.,Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA, USA
| | - C J Law
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA.,Owens Valley Radio Observatory, California Institute of Technology, Pasadena, CA, USA
| | - W M Peters
- Remote Sensing Division, US Naval Research Laboratory, Washington, DC, USA
| | - M Giroletti
- Istituto Nazionale di Astrofisica, Istituto di Radioastronomia, Bologna, Italy
| | - Z Paragi
- Joint Institute for VLBI ERIC, Dwingeloo, The Netherlands
| | - C Bassa
- ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands
| | - D M Hewitt
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - U Bach
- Max Planck Institute for Radio Astronomy, Bonn, Germany
| | - V Bezrukovs
- Engineering Research Institute Ventspils International Radio Astronomy Centre (ERI VIRAC), Ventspils University of Applied Sciences (VUAS), Ventspils, Latvia
| | - M Burgay
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Cagliari, Selargius, Italy
| | - S T Buttaccio
- Istituto Nazionale di Astrofisica, Istituto di Radioastronomia Radiotelescopio di Noto, Noto, Italy
| | - J E Conway
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
| | - A Corongiu
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Cagliari, Selargius, Italy
| | - R Feiler
- Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Toruń, Poland
| | - O Forssén
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
| | - M P Gawroński
- Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Toruń, Poland
| | - R Karuppusamy
- Max Planck Institute for Radio Astronomy, Bonn, Germany
| | - M A Kharinov
- Institute of Applied Astronomy of the Russian Academy of Sciences, St. Petersburg, Russia
| | - M Lindqvist
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
| | - G Maccaferri
- Istituto Nazionale di Astrofisica, Istituto di Radioastronomia, Bologna, Italy
| | - A Melnikov
- Institute of Applied Astronomy of the Russian Academy of Sciences, St. Petersburg, Russia
| | - O S Ould-Boukattine
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - A Possenti
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Cagliari, Selargius, Italy.,Dipartimento di Fisica, Università di Cagliari, Monserrato, Italy
| | - G Surcis
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Cagliari, Selargius, Italy
| | - N Wang
- Xinjiang Astronomical Observatory, Urumqi, China
| | - J Yuan
- Xinjiang Astronomical Observatory, Urumqi, China
| | - K Aggarwal
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - R Anna-Thomas
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - G C Bower
- Academia Sinica Institute of Astronomy and Astrophysics, Hilo, HI, USA
| | - R Blaauw
- ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands
| | - S Burke-Spolaor
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA.,Canadian Institute for Advanced Research, CIFAR Azrieli Global Scholar, Toronto, Ontario, Canada
| | - T Cassanelli
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada.,David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - T E Clarke
- Remote Sensing Division, US Naval Research Laboratory, Washington, DC, USA
| | - E Fonseca
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada.,Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - B M Gaensler
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada.,David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - A Gopinath
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - V M Kaspi
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada
| | - N Kassim
- Remote Sensing Division, US Naval Research Laboratory, Washington, DC, USA
| | - T J W Lazio
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - C Leung
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - D Z Li
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - H H Lin
- Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada.,Institute of Astronomy and Astrophysics, Academia Sinica, Taipei, Taiwan
| | - K W Masui
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - R Mckinven
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - D Michilli
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada.,MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - A G Mikhailov
- Institute of Applied Astronomy of the Russian Academy of Sciences, St. Petersburg, Russia
| | - C Ng
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - A Orbidans
- Engineering Research Institute Ventspils International Radio Astronomy Centre (ERI VIRAC), Ventspils University of Applied Sciences (VUAS), Ventspils, Latvia
| | - U L Pen
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada.,Canadian Institute for Advanced Research, CIFAR Azrieli Global Scholar, Toronto, Ontario, Canada.,Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada.,Perimeter Institute for Theoretical Physics, Waterloo, Ontario, Canada.,Institute of Astronomy and Astrophysics, Academia Sinica, Taipei, Taiwan
| | - E Petroff
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands.,Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada
| | - M Rahman
- Sidrat Research, Toronto, Ontario, Canada
| | - S M Ransom
- National Radio Astronomy Observatory, Charlottesville, VA, USA
| | - K Shin
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - K M Smith
- Perimeter Institute for Theoretical Physics, Waterloo, Ontario, Canada
| | - I H Stairs
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - W Vlemmings
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
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3
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Gauthier BE, Bach U, Chanut F, De Jonghe S, Groeters S, Mueller G, Palazzi X, Pohlmeyer-Esch G, Rinke M, Schorsch F. Opinion on Maintaining In-House GLP Status for Toxicologic Pathology in Pharmaceutical and (Agro)Chemical Development. Toxicol Pathol 2021; 50:147-152. [PMID: 34433323 DOI: 10.1177/01926233211042256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Many pharmaceutical companies have recently elected to stop maintaining good laboratory practices (GLP) status of their R&D sites. Similar discussions have also been engaged in the (agro)chemical industry. This opinion paper examines the pros and cons of maintaining facility GLP status for the purposes of performing the pathology interpretation or peer reviews of GLP studies internally. The toxicologic pathologist provides gross and histomorphologic evaluation and interpretation of nonclinical exploratory and regulatory studies during drug and (agro)chemical development. This assessment significantly contributes to human risk assessment by characterizing the toxicological profile and discussing the human relevance of the findings. The toxicologic pathologist is a key contributor to compound development decisions (advancement or termination) and in the development of de-risking strategies for backup compounds, thus playing a critical role in helping to reduce the late attrition of drugs and chemicals. Maintaining GLP compliance is often perceived as a costly and cumbersome process; a common and short-term strategy to reduce the costs is to outsource regulatory toxicity studies. However, there are significant advantages in maintaining the GLP status for toxicologic pathology activities in-house including the sustainable retention of internal pathology expertise that has maintained the necessary training needed to manage GLP studies. [Box: see text].
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Affiliation(s)
| | - Ute Bach
- Bayer AG, R&D Pharmaceuticals, Wuppertal, Germany
| | | | | | | | - Gundi Mueller
- Merck KGaA, Chemical & Preclinical Safety, Darmstadt, Germany
| | - Xavier Palazzi
- Pfizer Inc, Drug Safety Research and Development, Groton, CT, USA
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4
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Ramos MF, Baker J, Atzpodien EA, Bach U, Brassard J, Cartwright J, Farman C, Fishman C, Jacobsen M, Junker-Walker U, Kuper F, Moreno MCR, Rittinghausen S, Schafer K, Tanaka K, Teixeira L, Yoshizawa K, Zhang H. Nonproliferative and Proliferative Lesions of the Ratand Mouse Special Sense Organs(Ocular [eye and glands], Olfactory and Otic). J Toxicol Pathol 2018; 31:97S-214S. [PMID: 30158741 PMCID: PMC6108092 DOI: 10.1293/tox.31.97s] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Affiliation(s)
| | - Julia Baker
- Member of eye subgroup
- Charles River Laboratories, Inc., Frederick, MD, USA
| | | | - Ute Bach
- Member of eye subgroup
- Bayer AG, Wuppertal, Germany
| | | | | | | | - Cindy Fishman
- Member of eye subgroup
- Member of glands of the eye subgroup
- GlaxoSmithKline, King of Prussia, PA, USA
| | | | | | - Frieke Kuper
- Member of olfactory subgroup
- Retired; formerly The Netherlands Organization for Applied
Scientific Research (TNO), Zeist, the Netherlands
| | | | | | - Ken Schafer
- Member of eye subgroup
- Member of otic subgroup
- Vet Path Services, Inc., Mason, OH, USA
| | - Kohji Tanaka
- Member of eye subgroup
- Nippon Boehringer Ingelheim, Japan
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5
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Aleksić J, Ansoldi S, Antonelli LA, Antoranz P, Babic A, Bangale P, Barrio JA, González JB, Bednarek W, Bernardini E, Biasuzzi B, Biland A, Blanch O, Bonnefoy S, Bonnoli G, Borracci F, Bretz T, Carmona E, Carosi A, Colin P, Colombo E, Contreras JL, Cortina J, Covino S, Da Vela P, Dazzi F, De Angelis A, De Caneva G, De Lotto B, Wilhelmi EDO, Mendez CD, Prester DD, Dorner D, Doro M, Einecke S, Eisenacher D, Elsaesser D, Fonseca MV, Font L, Frantzen K, Fruck C, Galindo D, López RJG, Garczarczyk M, Terrats DG, Gaug M, Godinović N, Muñoz AG, Gozzini SR, Hadasch D, Hanabata Y, Hayashida M, Herrera J, Hildebrand D, Hose J, Hrupec D, Idec W, Kadenius V, Kellermann H, Kodani K, Konno Y, Krause J, Kubo H, Kushida J, La Barbera A, Lelas D, Lewandowska N, Lindfors E, Lombardi S, Longo F, López M, López-Coto R, López-Oramas A, Lorenz E, Lozano I, Makariev M, Mallot K, Maneva G, Mankuzhiyil N, Mannheim K, Maraschi L, Marcote B, Mariotti M, Martínez M, Mazin D, Menzel U, Miranda JM, Mirzoyan R, Moralejo A, Munar-Adrover P, Nakajima D, Niedzwiecki A, Nilsson K, Nishijima K, Noda K, Orito R, Overkemping A, Paiano S, Palatiello M, Paneque D, Paoletti R, Paredes JM, Paredes-Fortuny X, Persic M, Poutanen J, Moroni PGP, Prandini E, Puljak I, Reinthal R, Rhode W, Ribó M, Rico J, Garcia JR, Rügamer S, Saito T, Saito K, Satalecka K, Scalzotto V, Scapin V, Schultz C, Schweizer T, Shore SN, Sillanpää A, Sitarek J, Snidaric I, Sobczynska D, Spanier F, Stamatescu V, Stamerra A, Steinbring T, Storz J, Strzys M, Takalo L, Takami H, Tavecchio F, Temnikov P, Terzić T, Tescaro D, Teshima M, Thaele J, Tibolla O, Torres DF, Toyama T, Treves A, Uellenbeck M, Vogler P, Zanin R, Kadler M, Schulz R, Ros E, Bach U, Krauß F, Wilms J. Black hole lightning due to particle acceleration at subhorizon scales. Science 2014; 346:1080-4. [DOI: 10.1126/science.1256183] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- J. Aleksić
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | - S. Ansoldi
- Università di Udine and Istituto Nazionale di Fisica Nucleare (INFN) Trieste, I-33100 Udine, Italy, and Istituto Nazionale di Astrofisica (INAF)-Trieste, I-34127 Trieste, Italy
| | - L. A. Antonelli
- INAF National Institute for Astrophysics, I-00136 Rome, Italy
| | - P. Antoranz
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - A. Babic
- Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia
| | - P. Bangale
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | | | - J. Becerra González
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
- Present address: NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA, and Department of Physics and Department of Astronomy, University of Maryland, College Park, MD 20742, USA
| | | | - E. Bernardini
- Deutsches Elektronen-Synchrotron, D-15738 Zeuthen, Germany
| | - B. Biasuzzi
- Università di Udine and Istituto Nazionale di Fisica Nucleare (INFN) Trieste, I-33100 Udine, Italy, and Istituto Nazionale di Astrofisica (INAF)-Trieste, I-34127 Trieste, Italy
| | - A. Biland
- ETH Zurich, CH-8093 Zurich, Switzerland
| | - O. Blanch
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | - S. Bonnefoy
- Universidad Complutense, E-28040 Madrid, Spain
| | - G. Bonnoli
- INAF National Institute for Astrophysics, I-00136 Rome, Italy
| | - F. Borracci
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - T. Bretz
- Universität Würzburg, D-97074 Würzburg, Germany
- Present address: Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - E. Carmona
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain
| | - A. Carosi
- INAF National Institute for Astrophysics, I-00136 Rome, Italy
| | - P. Colin
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - E. Colombo
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
| | | | - J. Cortina
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | - S. Covino
- INAF National Institute for Astrophysics, I-00136 Rome, Italy
| | - P. Da Vela
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - F. Dazzi
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - A. De Angelis
- Università di Udine and Istituto Nazionale di Fisica Nucleare (INFN) Trieste, I-33100 Udine, Italy, and Istituto Nazionale di Astrofisica (INAF)-Trieste, I-34127 Trieste, Italy
| | - G. De Caneva
- Deutsches Elektronen-Synchrotron, D-15738 Zeuthen, Germany
| | - B. De Lotto
- Università di Udine and Istituto Nazionale di Fisica Nucleare (INFN) Trieste, I-33100 Udine, Italy, and Istituto Nazionale di Astrofisica (INAF)-Trieste, I-34127 Trieste, Italy
| | | | - C. Delgado Mendez
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, E-28040 Madrid, Spain
| | - D. Dominis Prester
- Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia
| | - D. Dorner
- Universität Würzburg, D-97074 Würzburg, Germany
| | - M. Doro
- Università di Padova and INFN, I-35131 Padova, Italy
| | - S. Einecke
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | | | | | | | - L. Font
- Unitat de Física de les Radiacions, Departament de Física, and Centro de Estudios e Investigación Espaciales-Institut d’Estudis Espacials de Catalunya, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - K. Frantzen
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - C. Fruck
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - D. Galindo
- Universitat de Barcelona, Institut de Ciències del Cosmos, Institut d’Estudis Espacials de Catalunya-Universitat de Barcelona, E-08028 Barcelona, Spain
| | - R. J. García López
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
| | - M. Garczarczyk
- Deutsches Elektronen-Synchrotron, D-15738 Zeuthen, Germany
| | - D. Garrido Terrats
- Unitat de Física de les Radiacions, Departament de Física, and Centro de Estudios e Investigación Espaciales-Institut d’Estudis Espacials de Catalunya, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - M. Gaug
- Unitat de Física de les Radiacions, Departament de Física, and Centro de Estudios e Investigación Espaciales-Institut d’Estudis Espacials de Catalunya, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - N. Godinović
- Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia
| | - A. González Muñoz
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | - S. R. Gozzini
- Deutsches Elektronen-Synchrotron, D-15738 Zeuthen, Germany
| | - D. Hadasch
- Institute of Space Sciences, E-08193 Barcelona, Spain
- Present address: Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität Innsbruck, A-6020 Innsbruck, Austria
| | - Y. Hanabata
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - M. Hayashida
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - J. Herrera
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
| | | | - J. Hose
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - D. Hrupec
- Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia
| | - W. Idec
- University of Łódz', PL-90236 Lodz, Poland
| | - V. Kadenius
- Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland
| | - H. Kellermann
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - K. Kodani
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - Y. Konno
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - J. Krause
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - H. Kubo
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - J. Kushida
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - A. La Barbera
- INAF National Institute for Astrophysics, I-00136 Rome, Italy
| | - D. Lelas
- Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia
| | | | - E. Lindfors
- Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland
- Present address: Finnish Centre for Astronomy with ESO (FINCA), Turku, Finland
| | - S. Lombardi
- INAF National Institute for Astrophysics, I-00136 Rome, Italy
| | - F. Longo
- Università di Udine and Istituto Nazionale di Fisica Nucleare (INFN) Trieste, I-33100 Udine, Italy, and Istituto Nazionale di Astrofisica (INAF)-Trieste, I-34127 Trieste, Italy
| | - M. López
- Universidad Complutense, E-28040 Madrid, Spain
| | - R. López-Coto
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | - A. López-Oramas
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | | | - I. Lozano
- Universidad Complutense, E-28040 Madrid, Spain
| | - M. Makariev
- Institute for Nuclear Research and Nuclear Energy, BG-1784 Sofia, Bulgaria
| | - K. Mallot
- Deutsches Elektronen-Synchrotron, D-15738 Zeuthen, Germany
| | - G. Maneva
- Institute for Nuclear Research and Nuclear Energy, BG-1784 Sofia, Bulgaria
| | - N. Mankuzhiyil
- Università di Udine and Istituto Nazionale di Fisica Nucleare (INFN) Trieste, I-33100 Udine, Italy, and Istituto Nazionale di Astrofisica (INAF)-Trieste, I-34127 Trieste, Italy
- Present address: Astrophysics Science Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - K. Mannheim
- Universität Würzburg, D-97074 Würzburg, Germany
| | - L. Maraschi
- INAF National Institute for Astrophysics, I-00136 Rome, Italy
| | - B. Marcote
- Universitat de Barcelona, Institut de Ciències del Cosmos, Institut d’Estudis Espacials de Catalunya-Universitat de Barcelona, E-08028 Barcelona, Spain
| | - M. Mariotti
- Università di Padova and INFN, I-35131 Padova, Italy
| | - M. Martínez
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | - D. Mazin
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - U. Menzel
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - J. M. Miranda
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - R. Mirzoyan
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - A. Moralejo
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | - P. Munar-Adrover
- Universitat de Barcelona, Institut de Ciències del Cosmos, Institut d’Estudis Espacials de Catalunya-Universitat de Barcelona, E-08028 Barcelona, Spain
| | - D. Nakajima
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | | | - K. Nilsson
- Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland
- Present address: Finnish Centre for Astronomy with ESO (FINCA), Turku, Finland
| | - K. Nishijima
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - K. Noda
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - R. Orito
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - A. Overkemping
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - S. Paiano
- Università di Padova and INFN, I-35131 Padova, Italy
| | - M. Palatiello
- Università di Udine and Istituto Nazionale di Fisica Nucleare (INFN) Trieste, I-33100 Udine, Italy, and Istituto Nazionale di Astrofisica (INAF)-Trieste, I-34127 Trieste, Italy
| | - D. Paneque
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - R. Paoletti
- Università di Siena and INFN Pisa, I-53100 Siena, Italy
| | - J. M. Paredes
- Universitat de Barcelona, Institut de Ciències del Cosmos, Institut d’Estudis Espacials de Catalunya-Universitat de Barcelona, E-08028 Barcelona, Spain
| | - X. Paredes-Fortuny
- Universitat de Barcelona, Institut de Ciències del Cosmos, Institut d’Estudis Espacials de Catalunya-Universitat de Barcelona, E-08028 Barcelona, Spain
| | - M. Persic
- Università di Udine and Istituto Nazionale di Fisica Nucleare (INFN) Trieste, I-33100 Udine, Italy, and Istituto Nazionale di Astrofisica (INAF)-Trieste, I-34127 Trieste, Italy
| | - J. Poutanen
- Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland
| | | | | | - I. Puljak
- Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia
| | - R. Reinthal
- Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland
| | - W. Rhode
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - M. Ribó
- Universitat de Barcelona, Institut de Ciències del Cosmos, Institut d’Estudis Espacials de Catalunya-Universitat de Barcelona, E-08028 Barcelona, Spain
| | - J. Rico
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | | | - S. Rügamer
- Universität Würzburg, D-97074 Würzburg, Germany
| | - T. Saito
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - K. Saito
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | | | - V. Scalzotto
- Università di Padova and INFN, I-35131 Padova, Italy
| | - V. Scapin
- Universidad Complutense, E-28040 Madrid, Spain
| | - C. Schultz
- Università di Padova and INFN, I-35131 Padova, Italy
| | - T. Schweizer
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - S. N. Shore
- Università di Pisa and INFN Pisa, I-56126 Pisa, Italy
| | - A. Sillanpää
- Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland
| | - J. Sitarek
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
| | - I. Snidaric
- Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia
| | | | - F. Spanier
- Universität Würzburg, D-97074 Würzburg, Germany
| | - V. Stamatescu
- Institut de Física d’Altes Energies, Campus UAB, E-08193 Bellaterra, Spain
- Present address: School of Chemistry and Physics, University of Adelaide, Adelaide 5005, Australia
| | - A. Stamerra
- INAF National Institute for Astrophysics, I-00136 Rome, Italy
| | | | - J. Storz
- Universität Würzburg, D-97074 Würzburg, Germany
| | - M. Strzys
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - L. Takalo
- Finnish MAGIC Consortium, Tuorla Observatory, University of Turku and Department of Physics, University of Oulu, Finland
| | - H. Takami
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - F. Tavecchio
- INAF National Institute for Astrophysics, I-00136 Rome, Italy
| | - P. Temnikov
- Institute for Nuclear Research and Nuclear Energy, BG-1784 Sofia, Bulgaria
| | - T. Terzić
- Croatian MAGIC Consortium, Rudjer Boskovic Institute, University of Rijeka and University of Split, HR-10000 Zagreb, Croatia
| | - D. Tescaro
- Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
| | - M. Teshima
- Max-Planck-Institut für Physik, D-80805 München, Germany
- Japanese MAGIC Consortium, Division of Physics and Astronomy, Kyoto University, Japan
| | - J. Thaele
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - O. Tibolla
- Universität Würzburg, D-97074 Würzburg, Germany
| | - D. F. Torres
- ICREA and Institute of Space Sciences, E-08193 Barcelona, Spain
| | - T. Toyama
- Max-Planck-Institut für Physik, D-80805 München, Germany
| | - A. Treves
- Università dell’Insubria and INFN Milano Bicocca, Como, I-22100 Como, Italy
| | - M. Uellenbeck
- Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - P. Vogler
- ETH Zurich, CH-8093 Zurich, Switzerland
| | - R. Zanin
- Universitat de Barcelona, Institut de Ciències del Cosmos, Institut d’Estudis Espacials de Catalunya-Universitat de Barcelona, E-08028 Barcelona, Spain
| | - M. Kadler
- Universität Würzburg, D-97074 Würzburg, Germany
| | - R. Schulz
- Universität Würzburg, D-97074 Würzburg, Germany
- Dr. Remeis-Sternwarte Bamberg, Astronomisches Institut der Universität Erlangen-Nürnberg, ECAP, D-96049 Bamberg, Germany
| | - E. Ros
- Max-Planck-Institut für Radioastronomie, D-53121 Bonn, Germany
- Observatori Astronòmic, Universitat de València, E-46980 Paterna, València, Spain
- Departament d’Astronomia i Astrofísica, Universitat de València, E-46100 Burjassot, València, Spain
| | - U. Bach
- Max-Planck-Institut für Radioastronomie, D-53121 Bonn, Germany
| | - F. Krauß
- Universität Würzburg, D-97074 Würzburg, Germany
- Dr. Remeis-Sternwarte Bamberg, Astronomisches Institut der Universität Erlangen-Nürnberg, ECAP, D-96049 Bamberg, Germany
| | - J. Wilms
- Dr. Remeis-Sternwarte Bamberg, Astronomisches Institut der Universität Erlangen-Nürnberg, ECAP, D-96049 Bamberg, Germany
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Willuda J, Linden L, Lerchen HG, Kopitz C, Golfier S, Bach U, Schumacher J, Stelte-Ludwig B, Ahsen OV, Schneider C, Dittmer F, Beier R, El-Sheik S, Tebbe J, Leder G, Apeler H, Jautelat R, Kreft B, Ziegelbauer K. Abstract 5445: Preclinical anti-tumor efficacy of an anti-C4.4a (LYPD3) antibody drug conjugate for the treatment of lung squamous cell carcinoma. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-5445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
C4.4a (LYPD3) has been identified previously as a cancer- and metastasis-associated internalizing cell surface protein. Targeting C4.4a with a specific antibody-drug conjugate (ADC) represents an unique opportunity to treat tumors with high unmet medical need such as squamous cell carcinomas SCC, in particular lung SCC.
We have generated an anti-C4.4a ADC consisting of a fully human monoclonal antibody linked to a non cell-permeable tubulin-binding auristatin cytotoxic agent (technology licensed from Seattle Genetics). In vitro, anti-C4.4a ADC showed an anti-proliferative efficacy (IC50) in the nanomolar range in cell lines endogenously expressing C4.4a (e.g. human lung cancer cell lines NCI-H292 and NCI-H322). High ADC stability and selectivity was observed in transfected A549 lung cancer cells over-expressing C4.4a compared to mock-transfected cells. In vivo, anti-C4.4a ADC exhibited a potent and selective antitumor activity in various human xenograft models (NCI-H292, NCI-H322, SCC-4) as well as in two SCC (Lu7433, Lu7343) and one pleomorphic (Lu7064) patient-derived lung cancer xenograft models. The in vivo efficacy is strictly target-dependent and selective as no efficacy was observed in C4.4a negative models (Fadu, Lu 7700) or using a non-specific isotype antibody ADC (NCI-H292, NCI-H322). A minimal effective dose (MED) as low as 1.9 mg/kg, response rates of up to 100%, and additive anti-tumor efficacy in combination with cisplatin were observed in the NCI-H292 xenograft model. Furthermore, it has been demonstrated that NCI-H292 were still sensitive to ADC treatment when tumors were allowed to regrow after the initial treatment cycle(). The anti-C4.4a ADC, which is fully cross-reactive with the mouse orthologue of C4.4a, was well tolerated at efficacious doses. Reversible skin reddening was observed only at doses markedly higher than the MED. In summary, anti-C4.4a ADC is a promising therapeutic candidate for the treatment of C4.4a-expressing squamous cell carcinomas, andpreclinical development has been initiated.
Citation Format: Joerg Willuda, Lars Linden, Hans-Georg Lerchen, Charlotte Kopitz, Sven Golfier, Ute Bach, Joachim Schumacher, Beatrix Stelte-Ludwig, Oliver Von Ahsen, Claudia Schneider, Frank Dittmer, Rudolf Beier, Sherif El-Sheik, Jan Tebbe, Gabriele Leder, Heiner Apeler, Rolf Jautelat, Bertolt Kreft, Karl Ziegelbauer. Preclinical anti-tumor efficacy of an anti-C4.4a (LYPD3) antibody drug conjugate for the treatment of lung squamous cell carcinoma. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 5445. doi:10.1158/1538-7445.AM2014-5445
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Affiliation(s)
| | | | | | | | | | - Ute Bach
- 2Bayer Pharma AG, Wuppertal, Germany
| | | | | | | | | | | | | | | | - Jan Tebbe
- 2Bayer Pharma AG, Wuppertal, Germany
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7
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Thai T, Zheng Y, Ng SH, Ohshima H, Altissimo M, Bach U. Facile gold nanorod purification by fractionated precipitation. Nanoscale 2014; 6:6515-6520. [PMID: 24838055 DOI: 10.1039/c4nr01592d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An efficient and facile size- and shape-selective separation of gold nanorod (GNR) solutions is developed using a fractionated precipitation strategy. This convenient method has the benefit of eliminating nanoparticulate side products that can substantially deteriorate the quality of self-assembled nanostructures. The fabrication of advanced plasmonic metamaterials crucially depends on the capacity to supply feedstocks of high-purity building blocks.
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Affiliation(s)
- T Thai
- Department of Materials Engineering, Monash University, Wellington Road, Clayton, Victoria 3800, Australia.
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8
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Dixon D, Alison R, Bach U, Colman K, Foley GL, Harleman JH, Haworth R, Herbert R, Heuser A, Long G, Mirsky M, Regan K, Van Esch E, Westwood FR, Vidal J, Yoshida M. Nonproliferative and proliferative lesions of the rat and mouse female reproductive system. J Toxicol Pathol 2014; 27:1S-107S. [PMID: 25516636 PMCID: PMC4253081 DOI: 10.1293/tox.27.1s] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The INHAND (International Harmonization of Nomenclature and Diagnostic Criteria for Lesions in Rats and Mice) Project (www.toxpath.org/inhand.asp) is a joint initiative of the Societies of Toxicological Pathology from Europe (ESTP), Great Britain (BSTP), Japan (JSTP) and North America (STP) to develop an internationally accepted nomenclature for proliferative and nonproliferative lesions in laboratory animals. The purpose of this publication is to provide a standardized nomenclature for classifying microscopic lesions observed in the female reproductive tract of laboratory rats and mice, with color photomicrographs illustrating examples of some lesions. The standardized nomenclature presented in this document is also available electronically on the internet (http://www.goreni.org/). Sources of material included histopathology databases from government, academia, and industrial laboratories throughout the world. Content includes spontaneous and aging lesions as well as lesions induced by exposure to test materials. There is also a section on normal cyclical changes observed in the ovary, uterus, cervix and vagina to compare normal physiological changes with pathological lesions. A widely accepted and utilized international harmonization of nomenclature for female reproductive tract lesions in laboratory animals will decrease confusion among regulatory and scientific research organizations in different countries and provide a common language to increase and enrich international exchanges of information among toxicologists and pathologists.
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Affiliation(s)
- Darlene Dixon
- National Institute of Environmental Health Sciences, National
Toxicology Program, Research Triangle Park, North Carolina, USA
| | - Roger Alison
- Roger Alison Ltd, Pathology Consultancy Services, Caerfyrddin
Fach, Cilcennin, Lampeter, SA48 8RN, United Kingdom
| | - Ute Bach
- Bayer Pharma AG, Wuppertal, Germany
| | - Karyn Colman
- Novartis Institute for Biomedical Research, Novartis, East
Hanover, New Jersey, USA
| | | | | | - Richard Haworth
- GlaxoSmithKline R&D, Park Road, Ware, Hertfordshire, SG12
ODP, United Kingdom
| | - Ronald Herbert
- National Institute of Environmental Health Sciences, National
Toxicology Program, Research Triangle Park, North Carolina, USA
| | - Anke Heuser
- Roche Pharma Research and Early Development, Roche Innovation
Center Basel, Grenzacher Strasse 124, 4070 Basel, Switzerland
| | - Gerald Long
- Experimental Pathology Laboratories, Indianapolis, Indiana,
USA
| | - Michael Mirsky
- Pfizer Worldwide Research and Development, Groton,
Connecticut, USA
| | | | - Eric Van Esch
- InSight Pathology BV, Chopinlaan 6, Oss, The
Netherlands
| | | | - Justin Vidal
- GlaxoSmithKline, King of Prussia, Pennsylvania, USA
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Castro-Tirado AJ, Gómez JL, Agudo I, Guerrero MA, Bremer M, Winters JM, Gorosabel J, Sánchez-Ramírez R, Guziy S, Jelinek M, Tello JC, Pérez-Ramírez D, Reyes-Iturbide J, Park IH, Jeong S, Bach U, Kraussh A, Krichbaumh TP, Pozanenko AS. The first two years in the lifetime of the newly born jet associated to Sw J1644+57. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20136101003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Abdo AA, Ackermann M, Ajello M, Atwood WB, Baldini L, Ballet J, Barbiellini G, Bastieri D, Bechtol K, Bellazzini R, Berenji B, Blandford RD, Bloom ED, Bonamente E, Borgland AW, Bouvier A, Brandt TJ, Bregeon J, Brez A, Brigida M, Bruel P, Buehler R, Burnett TH, Buson S, Caliandro GA, Cameron RA, Caraveo PA, Carrigan S, Casandjian JM, Cecchi C, Celik O, Charles E, Chaty S, Chekhtman A, Cheung CC, Chiang J, Ciprini S, Claus R, Cohen-Tanugi J, Conrad J, Corbel S, Corbet R, DeCesar ME, den Hartog PR, Dermer CD, de Palma F, Digel SW, Donato D, do Couto e Silva E, Drell PS, Dubois R, Dubus G, Dumora D, Favuzzi C, Fegan SJ, Ferrara EC, Fortin P, Frailis M, Fuhrmann L, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Gehrels N, Germani S, Giglietto N, Giordano F, Giroletti M, Glanzman T, Godfrey G, Grenier IA, Grondin MH, Grove JE, Guiriec S, Hadasch D, Harding AK, Hayashida M, Hays E, Healey SE, Hill AB, Horan D, Hughes RE, Itoh R, Jean P, Jóhannesson G, Johnson AS, Johnson RP, Johnson TJ, Johnson WN, Kamae T, Katagiri H, Kataoka J, Kerr M, Knödlseder J, Koerding E, Kuss M, Lande J, Latronico L, Lee SH, Lemoine-Goumard M, Garde ML, Longo F, Loparco F, Lott B, Lovellette MN, Lubrano P, Makeev A, Mazziotta MN, McConville W, McEnery JE, Mehault J, Michelson PF, Mizuno T, Moiseev AA, Monte C, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nakamori T, Naumann-Godo M, Nestoras I, Nolan PL, Norris JP, Nuss E, Ohno M, Ohsugi T, Okumura A, Omodei N, Orlando E, Ormes JF, Ozaki M, Paneque D, Panetta JH, Parent D, Pelassa V, Pepe M, Pesce-Rollins M, Piron F, Porter TA, Rainò S, Rando R, Ray PS, Razzano M, Razzaque S, Rea N, Reimer A, Reimer O, Reposeur T, Ripken J, Ritz S, Romani RW, Roth M, Sadrozinski HFW, Sander A, Parkinson PMS, Scargle JD, Schinzel FK, Sgrò C, Shaw MS, Siskind EJ, Smith DA, Smith PD, Sokolovsky KV, Spandre G, Spinelli P, Stawarz Ł, Strickman MS, Suson DJ, Takahashi H, Takahashi T, Tanaka T, Tanaka Y, Thayer JB, Thayer JG, Thompson DJ, Tibaldo L, Torres DF, Tosti G, Tramacere A, Uchiyama Y, Usher TL, Vandenbroucke J, Vasileiou V, Vilchez N, Vitale V, Waite AP, Wallace E, Wang P, Winer BL, Wolff MT, Wood KS, Yang Z, Ylinen T, Ziegler M, Maehara H, Nishiyama K, Kabashima F, Bach U, Bower GC, Falcone A, Forster JR, Henden A, Kawabata KS, Koubsky P, Mukai K, Nelson T, Oates SR, Sakimoto K, Sasada M, Shenavrin VI, Shore SN, Skinner GK, Sokoloski J, Stroh M, Tatarnikov AM, Uemura M, Wahlgren GM, Yamanaka M. Gamma-ray emission concurrent with the nova in the symbiotic binary V407 Cygni. Science 2010; 329:817-21. [PMID: 20705855 DOI: 10.1126/science.1192537] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Novae are thermonuclear explosions on a white dwarf surface fueled by mass accreted from a companion star. Current physical models posit that shocked expanding gas from the nova shell can produce x-ray emission, but emission at higher energies has not been widely expected. Here, we report the Fermi Large Area Telescope detection of variable gamma-ray emission (0.1 to 10 billion electron volts) from the recently detected optical nova of the symbiotic star V407 Cygni. We propose that the material of the nova shell interacts with the dense ambient medium of the red giant primary and that particles can be accelerated effectively to produce pi(0) decay gamma-rays from proton-proton interactions. Emission involving inverse Compton scattering of the red giant radiation is also considered and is not ruled out.
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Affiliation(s)
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- Space Science Division, Naval Research Laboratory, Washington, DC 20375, USA
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Nattestad A, Mozer AJ, Fischer MKR, Cheng YB, Mishra A, Bäuerle P, Bach U. Highly efficient photocathodes for dye-sensitized tandem solar cells. Nat Mater 2010; 9:31-35. [PMID: 19946281 DOI: 10.1038/nmat2588] [Citation(s) in RCA: 299] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Accepted: 10/26/2009] [Indexed: 05/28/2023]
Abstract
Thin-film dye-sensitized solar cells (DSCs) based on mesoporous semiconductor electrodes are low-cost alternatives to conventional silicon devices. High-efficiency DSCs typically operate as photoanodes (n-DSCs), where photocurrents result from dye-sensitized electron injection into n-type semiconductors. Dye-sensitized photocathodes (p-DSCs) operate in an inverse mode, where dye-excitation is followed by rapid electron transfer from a p-type semiconductor to the dye (dye-sensitized hole injection). Such p-DSCs and n-DSCs can be combined to construct tandem solar cells (pn-DSCs) with a theoretical efficiency limitation well beyond that of single-junction DSCs (ref. 4). Nevertheless, the efficiencies of such tandem pn-DSCs have so far been hampered by the poor performance of the available p-DSCs (refs 3, 5-15). Here we show for the first time that p-DSCs can convert absorbed photons to electrons with yields of up to 96%, resulting in a sevenfold increase in energy conversion efficiency compared with previously reported photocathodes. The donor-acceptor dyes, studied as photocathodic sensitizers, comprise a variable-length oligothiophene bridge, which provides control over the spatial separation of the photogenerated charge carriers. As a result, charge recombination is decelerated by several orders of magnitude and tandem pn-DSCs can be constructed that exceed the efficiency of their individual components.
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Bach U, Hailey JR, Hill GD, Kaufmann W, Latimer KS, Malarkey DE, Maronpot RM, Miller RA, Moore RR, Morrison JP, Nolte T, Rinke M, Rittinghausen S, Suttie AW, Travlos GS, Vahle JL, Willson GA, Elmore SA. Proceedings of the 2009 National Toxicology Program Satellite Symposium. Toxicol Pathol 2009; 38:9-36. [PMID: 20008954 DOI: 10.1177/0192623309354111] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The National Toxicology Program (NTP) Satellite Symposium is a one-day meeting that is held in conjunction with the annual Society of Toxicologic Pathology (STP) meeting. The topic of the 2009 Symposium was "Tumor Pathology and INHAND (International Harmonization of Nomenclature and Diagnostic Criteria for Lesions in Rats and Mice) Nomenclature." The goal of this article is to provide summaries of each speaker's presentation, including the diagnostic or nomenclature issues that were presented, along with a few select images that were used for voting. The results of the voting process and interesting points of discussion that were raised during the presentation are also provided. A supplemental file with voting choices and voting results for each case presented at the symposium is available at http://tpx.sagepub.com/supplemental.
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Affiliation(s)
- Ute Bach
- 1Bayer HealthCare AG, Pharma Research Center, Wuppertal, Germany
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Bach U, Kalthoff V, Mundt HC, Popp A, Rinke M, Daugschies A, Lüttge B. Parasitological and morphological findings in porcine isosporosis after treatment with symmetrical triazintriones. Parasitol Res 2003; 91:27-33. [PMID: 12856173 DOI: 10.1007/s00436-003-0828-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2002] [Accepted: 12/11/2002] [Indexed: 10/26/2022]
Abstract
Neonatal porcine isosporosis is known to cause serious economic losses in piglet farms by causing severe enteritis with dehydration, weight loss and reduced development in the affected animals, predominantly during the first weeks of life. In the present study, piglets experimentally infected with Isospora suis were treated with Bay Vi 9143, a symmetrical triazintrione, at different days post-infection. As shown by clinical and pathological examinations, Bay Vi 9143 is effective against the asexual and sexual stages of I. suis at all selected treatment times. However, the therapeutic use at an early stage of asexual multiplication is most effective before the onset of clinical symptoms.
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Affiliation(s)
- Ute Bach
- BHC-PH-P-Toxicologic Pathology, Pharma Research Center, Bayer AG, 42096 Wuppertal, Germany.
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Luhe A, Hildebrand H, Bach U, Dingermann T, Ahr HJ. A new approach to studying ochratoxin A (OTA)-induced nephrotoxicity: expression profiling in vivo and in vitro employing cDNA microarrays. Toxicol Sci 2003; 73:315-28. [PMID: 12700408 DOI: 10.1093/toxsci/kfg073] [Citation(s) in RCA: 120] [Impact Index Per Article: 5.7] [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: 11/14/2022] Open
Abstract
Ochratoxin A (OTA) is a mycotoxin often found in cereals as a contaminant, and it is known to cause severe nephrotoxicity in animals and humans. There have been several investigations studying the mode of action of this toxicant, suggesting inhibition of protein synthesis, formation of DNA adducts, and provocation of DNA single-strand breaks as a result of oxidative stress, but little is known about the transcriptional alterations underlying OTA-derived nephrotoxicity so far. We carried out DNA microarray analyses to assess OTA-specific expression profiles in vivo and in vitro. Cultures of primary rat proximal tubular cells and male Wistar rats were treated with a low dose (5 microM and 1 mg/kg, respectively) or a high dose (12.5 microM and 10 mg/kg, respectively) of OTA for 24 or 72 h. Microarray experiments were carried out after dual fluorescent labeling of sample cDNA, and data analysis was performed utilizing different statistical methods. Validity of selected microarray data was confirmed by quantitative real-time PCR. We were able to demonstrate that microarray data derived from our proximal tubule cell (PTC) culture model were highly comparable to the in vivo situation. Marked treatment-specific transcriptional changes were detected for genes involved in DNA damage response and apoptosis (upregulation of GADD 153, GADD 45, annexin V), response to oxidative stress (differential expression of hypoxia-inducible factor 1 and catalase), and inflammatory reactions (upregulation of alpha 2 macroglobulin, ceruloplasmin, and cathepsin S). We conclude that our results provide a molecular basis for interpretation of OTA-induced nephrotoxicity.
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Affiliation(s)
- Anke Luhe
- Department of Molecular and Genetic Toxicology, Bayer AG, Aprather Weg 18a, 42096 Wuppertal, Germany.
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Funk J, Schmitz G, Bach U, Failing K, Burkhardt E. Influence of different tumour types on natural cytotoxicity (NK cell activity) and mitogen-induced lymphocyte proliferation in isolated blood lymphocytes from 110 dogs with tumours. Res Vet Sci 2003; 74:129-35. [PMID: 12589737 DOI: 10.1016/s0034-5288(02)00157-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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: 11/24/2022]
Abstract
The cell-mediated immune response of blood lymphocytes from 110 untreated dogs with different tumours was evaluated. The influence of different tumour types on the cellular immune system was examined by assessing the percentage of isolated large granular lymphocytes (LGL), in vitro natural cytotoxicity and mitogen-induced lymphocyte proliferation. Although the overall natural cytotoxicity of dogs with different tumours was decreased, the overall difference from control values was not statistically significant. However, mitogen-induced lymphocyte proliferation was significantly depressed in dogs with tumours in comparison with the controls. Dogs with mammary carcinomas showed significantly lower natural cytotoxicity than controls and dogs with myeloid neoplasms showed significantly lower mitogen-induced lymphocyte proliferation. Abnormalities exist not only in natural cytotoxicity but also in mitogen-induced lymphocyte proliferation. For the dog, this is the first study to assess the influence of different tumours using a combined evaluation of natural cytotoxicity and mitogen-induced lymphocyte proliferation in such a large number of animals.
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Affiliation(s)
- J Funk
- Institut für Veterinär-Pathologie, Justus-Liebig-Universität, Frankfurter Strasse 96, Giessen 35392, Germany
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Kleymann G, Fischer R, Betz UAK, Hendrix M, Bender W, Schneider U, Handke G, Eckenberg P, Hewlett G, Pevzner V, Baumeister J, Weber O, Henninger K, Keldenich J, Jensen A, Kolb J, Bach U, Popp A, Mäben J, Frappa I, Haebich D, Lockhoff O, Rübsamen-Waigmann H. New helicase-primase inhibitors as drug candidates for the treatment of herpes simplex disease. Nat Med 2002; 8:392-8. [PMID: 11927946 DOI: 10.1038/nm0402-392] [Citation(s) in RCA: 236] [Impact Index Per Article: 10.7] [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: 11/09/2022]
Abstract
The vast majority of the world population is infected with at least one member of the human herpesvirus family. Herpes simplex virus (HSV) infections are the cause of cold sores and genital herpes as well as life-threatening or sight-impairing disease mainly in immunocompromized patients, pregnant women and newborns. Since the milestone development in the late 1970s of acyclovir (Zovirax), a nucleosidic inhibitor of the herpes DNA polymerase, no new non-nucleosidic anti-herpes drugs have been introduced. Here we report new inhibitors of the HSV helicase-primase with potent in vitro anti-herpes activity, a novel mechanism of action, a low resistance rate and superior efficacy against HSV in animal models. BAY 57-1293 (N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide), a well-tolerated member of this class of compounds, significantly reduces time to healing, prevents rebound of disease after cessation of treatment and, most importantly, reduces frequency and severity of recurrent disease. Thus, this class of drugs has significant potential for the treatment of HSV disease in humans, including those resistant to current medications.
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Abstract
The formation of microcapsules which contain rosemary oil, is herewith described. The process is based on two steps: (a) formation of oil-in-water emulsions, by using lecithin as emulsifier, thus imparting negative charges on the oil droplets; (b) addition of a cationic biopolymer, chitosan, in conditions that favor the formation of an insoluble chitosan-lecithin complex. Zeta potential measurements revealed that addition of very low concentrations of chitosan to lecithin stabilized emulsions, led to reversal of charge. At a suitable pH range the chitosan precipitated around the oil droplets, forming positively charged microcapsules. The chitosan-lecithin insoluble complex is composed of a 1:1 molar ratio of the chitosan monomeric unit and lecithin, as evaluated by elementary analysis and turbidity measurements.
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Affiliation(s)
- S Magdassi
- Casali Institute of Applied Chemistry, Hebrew University of Jerusalem, Israel
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Bach U. [Some considerations on the goals of rehabilitation (author's transl)]. Rehabilitation (Stuttg) 1977; 16:172-4. [PMID: 918339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Has not the term "rehabilitation" been very frequently used lately to describe exclusively vocational rehabilitation? If, however, "rehabilitation" does not cover all aspects of rehabilitation including the efforts made to provide the severely handicapped with the opportunity of developing their potential to the fullest then the severely handicapped are automatically considered segregated. What we do for them can only be described in a negative way. We are unable to integrate them vocationally but we do not want to leave them their fate, either. Without a positive exression for the efforts made for these fellow-citizens alone from the way we think and talk this part of rehabilitation implies inhuman tendencies.
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Bach U. [Are we pushing the disabled intellectually into a ghetto? (AUTHOR'S TRANSL)]. Rehabilitation (Stuttg) 1975; 14:18-28. [PMID: 135310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Disabled people not only encounter barriers in their physical environment (in the form of steps which social rehabilitation is making efforts to level, remove or overcome through ramps) but also in the intellectual and emotional fields (in the life and thinking habits of our society, in expressions, song texts, etc.) i.e. basic expressions which seem to be applicable to the lives of the non-disabled but which prevent the disabled's access to life in the community. The examples given are: "What you are depends on what you have", "the world is beautiful", "everything will turn out all right". These expressions are, at least, as detrimental to full integration as the steps at the entrance to the post-office. The elimination of these sayings would not be beneficial to the disabled alone, but to all people: our life would become more honest and less strained. Phrases of the Biblical Message serve as the example for a thinking model which could give the impetus to a common learning process of tension release. Efforts to lessen the restraint (that is to correct the cited expressions) are called "weltanschauliche Rehabilitation", but whether this should rather be understood as a part of social rehabilitation or its parallel is a question which still remains unanswered.
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Bach U. [We, the handicapped, and the able-bodied (author's transl)]. Rehabilitation (Stuttg) 1974; 13:15-7. [PMID: 4282643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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