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Nakamura T, Matsumoto M, Amano K, Enokido Y, Zolensky ME, Mikouchi T, Genda H, Tanaka S, Zolotov MY, Kurosawa K, Wakita S, Hyodo R, Nagano H, Nakashima D, Takahashi Y, Fujioka Y, Kikuiri M, Kagawa E, Matsuoka M, Brearley AJ, Tsuchiyama A, Uesugi M, Matsuno J, Kimura Y, Sato M, Milliken RE, Tatsumi E, Sugita S, Hiroi T, Kitazato K, Brownlee D, Joswiak DJ, Takahashi M, Ninomiya K, Takahashi T, Osawa T, Terada K, Brenker FE, Tkalcec BJ, Vincze L, Brunetto R, Aléon-Toppani A, Chan QHS, Roskosz M, Viennet JC, Beck P, Alp EE, Michikami T, Nagaashi Y, Tsuji T, Ino Y, Martinez J, Han J, Dolocan A, Bodnar RJ, Tanaka M, Yoshida H, Sugiyama K, King AJ, Fukushi K, Suga H, Yamashita S, Kawai T, Inoue K, Nakato A, Noguchi T, Vilas F, Hendrix AR, Jaramillo-Correa C, Domingue DL, Dominguez G, Gainsforth Z, Engrand C, Duprat J, Russell SS, Bonato E, Ma C, Kawamoto T, Wada T, Watanabe S, Endo R, Enju S, Riu L, Rubino S, Tack P, Takeshita S, Takeichi Y, Takeuchi A, Takigawa A, Takir D, Tanigaki T, Taniguchi A, Tsukamoto K, Yagi T, Yamada S, Yamamoto K, Yamashita Y, Yasutake M, Uesugi K, Umegaki I, Chiu I, Ishizaki T, Okumura S, Palomba E, Pilorget C, Potin SM, Alasli A, Anada S, Araki Y, Sakatani N, Schultz C, Sekizawa O, Sitzman SD, Sugiura K, Sun M, Dartois E, De Pauw E, Dionnet Z, Djouadi Z, Falkenberg G, Fujita R, Fukuma T, Gearba IR, Hagiya K, Hu MY, Kato T, Kawamura T, Kimura M, Kubo MK, Langenhorst F, Lantz C, Lavina B, Lindner M, Zhao J, Vekemans B, Baklouti D, Bazi B, Borondics F, Nagasawa S, Nishiyama G, Nitta K, Mathurin J, Matsumoto T, Mitsukawa I, Miura H, Miyake A, Miyake Y, Yurimoto H, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Tachibana S, Connolly HC, Lauretta DS, Yoshitake M, Yoshikawa M, Yoshikawa K, Yoshihara K, Yokota Y, Yogata K, Yano H, Yamamoto Y, Yamamoto D, Yamada M, Yamada T, Yada T, Wada K, Usui T, Tsukizaki R, Terui F, Takeuchi H, Takei Y, Iwamae A, Soejima H, Shirai K, Shimaki Y, Senshu H, Sawada H, Saiki T, Ozaki M, Ono G, Okada T, Ogawa N, Ogawa K, Noguchi R, Noda H, Nishimura M, Namiki N, Nakazawa S, Morota T, Miyazaki A, Miura A, Mimasu Y, Matsumoto K, Kumagai K, Kouyama T, Kikuchi S, Kawahara K, Kameda S, Iwata T, Ishihara Y, Ishiguro M, Ikeda H, Hosoda S, Honda R, Honda C, Hitomi Y, Hirata N, Hirata N, Hayashi T, Hayakawa M, Hatakeda K, Furuya S, Fukai R, Fujii A, Cho Y, Arakawa M, Abe M, Watanabe S, Tsuda Y. Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples. Science 2023; 379:eabn8671. [PMID: 36137011 DOI: 10.1126/science.abn8671] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon dioxide-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu's parent asteroid formed in the outer Solar System. The samples contain low abundances of materials that formed at high temperatures, such as chondrules and calcium- and aluminum-rich inclusions. The samples are rich in phyllosilicates and carbonates, which formed through aqueous alteration reactions at low temperature, high pH, and water/rock ratios of <1 (by mass). Less altered fragments contain olivine, pyroxene, amorphous silicates, calcite, and phosphide. Numerical simulations, based on the mineralogical and physical properties of the samples, indicate that Ryugu's parent body formed ~2 million years after the beginning of Solar System formation.
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Affiliation(s)
- T Nakamura
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsumoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Amano
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Enokido
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M E Zolensky
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - T Mikouchi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Genda
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - M Y Zolotov
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA
| | - K Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - S Wakita
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - R Hyodo
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Nagano
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - D Nakashima
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Isotope Science Center, The University of Tokyo, Tokyo 113-0032, Japan
| | - Y Fujioka
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Kikuiri
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - E Kagawa
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsuoka
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8567, Japan
| | - A J Brearley
- Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - A Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.,Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China
| | - M Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Matsuno
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Y Kimura
- Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan
| | - M Sato
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R E Milliken
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, Tenerife 38205, Spain
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Hiroi
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - K Kitazato
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - D Brownlee
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - D J Joswiak
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - M Takahashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Ninomiya
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Takahashi
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Osawa
- Materials Sciences Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Terada
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - F E Brenker
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - B J Tkalcec
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - L Vincze
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - R Brunetto
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - A Aléon-Toppani
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Q H S Chan
- Department of Earth Sciences, Royal Holloway, University of London, Egham TW20 0EX, UK
| | - M Roskosz
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - J-C Viennet
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - P Beck
- Institut de Planétologie et d'Astrophysique de Grenoble, CNRS, Université Grenoble Alpes, 38000 Grenoble, France
| | - E E Alp
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - Y Nagaashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan.,Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - T Tsuji
- Department of Earth Resources Engineering, Kyushu University, Fukuoka 819-0395, Japan.,School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Ino
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Kwansei Gakuin University, Sanda 669-1330, Japan
| | - J Martinez
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - J Han
- Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA
| | - A Dolocan
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - R J Bodnar
- Department of Geoscience, Virginia Tech, Blacksburg, VA 24061, USA
| | - M Tanaka
- Materials Analysis Station, National Institute for Materials Science, Tsukuba 305-0047, Japan
| | - H Yoshida
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Sugiyama
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - A J King
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - K Fukushi
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - H Suga
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S Yamashita
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - T Kawai
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Inoue
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - A Nakato
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Noguchi
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan.,Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - F Vilas
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - A R Hendrix
- Planetary Science Institute, Tucson, AZ 85719, USA
| | | | - D L Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - G Dominguez
- Department of Physics, California State University, San Marcos, CA 92096, USA
| | - Z Gainsforth
- Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA
| | - C Engrand
- Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - J Duprat
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - S S Russell
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - E Bonato
- Institute for Planetary Research, Deutsches Zentrum für Luftund Raumfahrt, Rutherfordstraße 2 12489 Berlin, Germany
| | - C Ma
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena CA 91125, USA
| | - T Kawamoto
- Department of Geosciences, Shizuoka University, Shizuoka 422-8529, Japan
| | - T Wada
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan
| | - R Endo
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Enju
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - L Riu
- European Space Astronomy Centre, 28692 Villanueva de la Cañada, Spain
| | - S Rubino
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - P Tack
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - S Takeshita
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - Y Takeichi
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan.,Department of Applied Physics, Osaka University, Suita 565-0871, Japan
| | - A Takeuchi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - A Takigawa
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - D Takir
- NASA Johnson Space Center; Houston, TX 77058, USA
| | | | - A Taniguchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori 590-0494, Japan
| | - K Tsukamoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - T Yagi
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K Yamamoto
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Yamashita
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - M Yasutake
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - K Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - I Umegaki
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan.,Toyota Central Research and Development Laboratories, Nagakute 480-1192, Japan
| | - I Chiu
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Ishizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Okumura
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - E Palomba
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome 00133, Italy
| | - C Pilorget
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France.,Institut Universitaire de France, Paris, France
| | - S M Potin
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Faculty of Aerospace Engineering, Delft University of Technology, Delft, Netherlands
| | - A Alasli
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - S Anada
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Araki
- Department of Physical Sciences, Ritsumeikan University, Shiga 525-0058, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - C Schultz
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - O Sekizawa
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S D Sitzman
- Physical Sciences Laboratory, The Aerospace Corporation, CA 90245, USA
| | - K Sugiura
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - M Sun
- Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - E Dartois
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - E De Pauw
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - Z Dionnet
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Z Djouadi
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - G Falkenberg
- Deutsches Elektronen-Synchrotron Photon Science, 22603 Hamburg, Germany
| | - R Fujita
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - T Fukuma
- Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - I R Gearba
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - K Hagiya
- Graduate School of Life Science, University of Hyogo, Hyogo 678-1297, Japan
| | - M Y Hu
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Kato
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - T Kawamura
- Institut de Physique du Globe de Paris, Université de Paris, Paris 75205, France
| | - M Kimura
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - M K Kubo
- Division of Natural Sciences, International Christian University, Mitaka 181-8585, Japan
| | - F Langenhorst
- Institute of Geosciences, Friedrich-Schiller-Universität Jena, 07745 Jena, Germany
| | - C Lantz
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Lavina
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA
| | - M Lindner
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - J Zhao
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - B Vekemans
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - D Baklouti
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Bazi
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - F Borondics
- Optimized Light Source of Intermediate Energy to LURE (SOLEIL) L'Orme des Merisiers, Gif sur Yvette F-91192, France
| | - S Nagasawa
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - G Nishiyama
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Nitta
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Mathurin
- Institut Chimie Physique, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - T Matsumoto
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - I Mitsukawa
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - H Miura
- Graduate School of Science, Nagoya City University, Nagoya 467-8501, Japan
| | - A Miyake
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Y Miyake
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - H Yurimoto
- Department of Natural History Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - R Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - H Yabuta
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - K Sakamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Tachibana
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H C Connolly
- Department of Geology, Rowan University, Glassboro, NJ 08028, USA
| | - D S Lauretta
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
| | - M Yoshitake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K Yoshihara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yogata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - D Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Yamada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Usui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Department of Mechanical Engineering, Kanagawa Institute of Technology, Atsugi 243-0292, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Iwamae
- Marine Works Japan, Yokosuka 237-0063, Japan
| | - H Soejima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - K Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Noguchi
- Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - M Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Namiki
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - A Miyazaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Matsumoto
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kumagai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - T Kouyama
- Digital Architecture Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - S Kikuchi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kawahara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Kameda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Ishihara
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - M Ishiguro
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan.,Center for Data Science, Ehime University, Matsuyama 790-8577, Japan
| | - C Honda
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Hitomi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - N Hirata
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Hayashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Hatakeda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - S Furuya
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Fukai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - S Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
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2
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Komuro M, Nagane M, Endo R, Nakamura T, Miyamoto T, Niwa C, Fukuyama T, Harashima H, Aihara N, Kamiie J, Suzuki R, Yamashita T. Glucosylceramide in T cells regulates the pathology of inflammatory bowel disease. Biochem Biophys Res Commun 2022; 599:24-30. [PMID: 35168060 DOI: 10.1016/j.bbrc.2022.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 02/01/2022] [Indexed: 12/21/2022]
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disease in the colon characterized by excessive activation of T cells. Glycosphingolipids (GSLs) are composed of lipid rafts in cellular membranes, and their content is linked to immune cell function. In the present study, we investigated the involvement of GSLs in IBD. Microarray data showed that in IBD patients, the expression of only UDP-glucose ceramide glucosyltransferase (UGCG) decreased among the GSLs synthases. Ad libitum access to dextran sulfate sodium (DSS) resulted in decreased UGCG and glucosylceramide (GlcCer) content in mesenteric lymph nodes and T cells from the spleen. Furthermore, the knockdown of Ugcg in T cells exacerbated the pathogenesis of colitis, which was accompanied by a decrease in Treg levels. Treatment with GlcCer nanoparticles prevented DSS-induced colitis. These results suggested that GlcCer in T cells is involved in the pathogenesis of IBD. Furthermore, GlcCer nanoparticles are a potential efficacious therapeutic target for IBD patients.
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Affiliation(s)
- Mariko Komuro
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Masaki Nagane
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan; Center for Human and Animal Symbiosis Science, Azabu University, Sagamihara, Kanagawa, Japan.
| | - Rikito Endo
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takashi Nakamura
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takayoshi Miyamoto
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Chiaki Niwa
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Tomoki Fukuyama
- Laboratory of Pharmacology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Hideyoshi Harashima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Naoyuki Aihara
- Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Junichi Kamiie
- Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Rimina Suzuki
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Tadashi Yamashita
- Laboratory of Biochemistry, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
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3
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Maishi N, Sakurai Y, Hatakeyama H, Umeyama Y, Nakamura T, Endo R, Alam MT, Li C, Annan DAM, Kikuchi H, Morimoto H, Morimoto M, Akiyama K, Ohga N, Hida Y, Harashima H, Hida K. Novel antiangiogenic therapy targeting biglycan using tumor endothelial cell-specific liposomal siRNA delivery system. Cancer Sci 2022; 113:1855-1867. [PMID: 35266253 PMCID: PMC9128192 DOI: 10.1111/cas.15323] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 02/21/2022] [Accepted: 03/02/2022] [Indexed: 12/01/2022] Open
Abstract
Tumor blood vessels play important roles in tumor progression and metastasis. Targeting tumor endothelial cells (TECs) is one of the strategies for cancer therapy. We previously reported that biglycan, a small leucine‐rich proteoglycan, is highly expressed in TECs. TECs utilize biglycan in an autocrine manner for migration and angiogenesis. Furthermore, TEC‐derived biglycan stimulates tumor cell migration in a paracrine manner leading to tumor cell intravasation and metastasis. In this study, we explored the therapeutic effect of biglycan inhibition in the TECs of renal cell carcinoma using an in vivo siRNA delivery system known as a multifunctional envelope‐type nanodevice (MEND), which contains a unique pH‐sensitive cationic lipid. To specifically deliver MEND into TECs, we incorporated cyclo(Arg–Gly–Asp–d–Phe–Lys) (cRGD) into MEND because αVβ3 integrin, a receptor for cRGD, is selective and highly expressed in TECs. We developed RGD‐MEND‐encapsulating siRNA against biglycan. First, we confirmed that MEND was delivered into OS‐RC‐2 tumor‐derived TECs and induced in vitro RNAi‐mediated gene silencing. MEND was then injected intravenously into OS‐RC‐2 tumor‐bearing mice. Flow cytometry analysis demonstrated that MEND was specifically delivered into TECs. Quantitative RT‐PCR indicated that biglycan was knocked down by biglycan siRNA‐containing MEND. Finally, we analyzed the therapeutic effect of biglycan silencing by MEND in TECs. Tumor growth was inhibited by biglycan siRNA‐containing MEND. Tumor microenvironmental factors such as fibrosis were also normalized using biglycan inhibition in TECs. Biglycan in TECs can be a novel target for cancer treatment.
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Affiliation(s)
- Nako Maishi
- Vascular Biology and Molecular Pathology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan.,Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan.,Department of Vascular Biology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Yu Sakurai
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.,Membrane Transport and Drug Targeting Laboratory, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Hiroto Hatakeyama
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.,Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Yui Umeyama
- Vascular Biology and Molecular Pathology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Takashi Nakamura
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Rikito Endo
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Mohammad Towfik Alam
- Vascular Biology and Molecular Pathology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan.,Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan.,Department of Vascular Biology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Cong Li
- Vascular Biology and Molecular Pathology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Dorcas Akuba-Muhyia Annan
- Vascular Biology and Molecular Pathology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan.,Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroshi Kikuchi
- Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan.,Department of Renal and Genitourinary Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hirofumi Morimoto
- Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Masahiro Morimoto
- Vascular Biology and Molecular Pathology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan.,Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan.,Department of Oral Diagnosis and Medicine, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Kosuke Akiyama
- Department of Vascular Biology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Noritaka Ohga
- Department of Vascular Biology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan.,Department of Oral Diagnosis and Medicine, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Yasuhiro Hida
- Department of Cardiovascular and Thoracic Surgery, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | | | - Kyoko Hida
- Vascular Biology and Molecular Pathology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan.,Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan.,Department of Vascular Biology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
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4
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Ukawa M, Endo R, Yagi H, Tomono T, Miyata K, Shigeno K, Tobita E, Uto T, Baba M, Sakuma S. Mechanism on antigen delivery under mucosal vaccination using cell-penetrating peptides immobilized at multiple points on polymeric platforms. Int J Pharm 2021; 613:121376. [PMID: 34915143 DOI: 10.1016/j.ijpharm.2021.121376] [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: 08/04/2021] [Revised: 11/24/2021] [Accepted: 12/08/2021] [Indexed: 11/29/2022]
Abstract
We have developed an aggregate of D-octaarginine immobilized at multiple points on a co-polymer of N-vinylacetamide and acrylic acid. Previous studies revealed that immunoglobulin G and A were induced when mice were inoculated with influenza virus antigens under coadministration with the D-octaarginine-immobilized polymers as a mucosal vaccine adjuvant. Infection experiments demonstrated that mice vaccinated with a mixture of inactivated influenza viruses and the polymers were protected from infection with mouse-adapted infectious viruses. In the present study, we investigated the mechanism on antigen delivery under mucosal vaccination using the polymers. Two-hour retention of fluorescein-labeled ovalbumin (F-OVA) on the nasal mucosa was observed when applied with the polymers; nevertheless F-OVA was eliminated less than 10 min under polymer-free conditions. F-OVA mixed with the polymers was vigorously taken up into murine dendritic cells. Electrophoresis and dynamic light scattering analysis indicated that OVA interacted with the polymers. The uptake of F-OVA was hardly ever inhibited by the addition of an excess amount of intact OVA. The results suggested that viral antigens were accumulated on the mucosa and delivered into dendritic cells under basolateral membranes via dendrites extending to the mucosal surface and/or subsequent to their permeation through epithelial cells, when they were coadministered with D-octaarginine-immobilized polymers.
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Affiliation(s)
- Masami Ukawa
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Rikito Endo
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Haruya Yagi
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Takumi Tomono
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Kohei Miyata
- Life Science Materials Laboratory, ADEKA Co., 7-2-34, Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan
| | - Koichi Shigeno
- Life Science Materials Laboratory, ADEKA Co., 7-2-34, Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan
| | - Etsuo Tobita
- Life Science Materials Laboratory, ADEKA Co., 7-2-34, Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan
| | - Tomofumi Uto
- Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake Miyazaki 889-1692, Japan
| | - Masanori Baba
- Joint Research Center for Human Retrovirus Infection, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, Kagoshima 890-8544, Japan.
| | - Shinji Sakuma
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
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5
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Nakamura T, Sato T, Endo R, Sasaki S, Takahashi N, Sato Y, Hyodo M, Hayakawa Y, Harashima H. STING agonist loaded lipid nanoparticles overcome anti-PD-1 resistance in melanoma lung metastasis via NK cell activation. J Immunother Cancer 2021; 9:jitc-2021-002852. [PMID: 34215690 PMCID: PMC8256839 DOI: 10.1136/jitc-2021-002852] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2021] [Indexed: 12/14/2022] Open
Abstract
Background Resistance to an immune checkpoint inhibitor (ICI) is a major obstacle in cancer immunotherapy. The causes of ICI resistance include major histocompatibility complex (MHC)/histocompatibility locus antigen (HLA) class I loss, neoantigen loss, and incomplete antigen presentation. Elimination by natural killer (NK) cells would be expected to be an effective strategy for the treatment of these ICI-resistant tumors. We previously demonstrated that a lipid nanoparticle containing a stimulator of an interferon gene (STING) agonist (STING-LNP) efficiently induced antitumor activity via the activation of NK cells. Thus, we evaluated the potential of reducing ICI resistance by STING-LNPs. Methods Lung metastasis of a B16-F10 mouse melanoma was used as an anti-programmed cell death 1 (anti-PD-1)-resistant mouse model. The mice were intravenously injected with the STING-LNP and the mechanism responsible for the improvement of anti-PD-1 resistance by the STING-LNPs was analyzed by RT-qPCR and flow cytometry. The dynamics of STING-LNP were also investigated. Results Although anti-PD-1 monotherapy failed to induce an antitumor effect, the combination of the STING-LNP and anti-PD-1 exerted a synergistic antitumor effect. Our results indicate that the STING-LNP treatment significantly increased the expression of CD3, CD4, NK1.1, PD-1 and interferon (IFN)-γ in lung metastases. This change appears to be initiated by the type I IFN produced by liver macrophages that contain the internalized STING-LNPs, leading to the systemic activation of NK cells that express PD-1. The activated NK cells appeared to produce IFN-γ, resulting in an increase in the expression of the PD ligand 1 (PD-L1) in cancer cells, thus leading to a synergistic antitumor effect when anti-PD-1 is administered. Conclusions We provide a demonstration to show that a STING-LNP treatment can overcome PD-1 resistance in a B16-F10 lung metastasis model. The mechanism responsible for this indicates that NK cells are activated by stimulating the STING pathway which, in turn, induced the expression of PD-L1 on cancer cells. Based on the findings reported herein, the STING-LNP represents a promising candidate for use in combination therapy with anti-PD-1-resistant tumors.
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Affiliation(s)
- Takashi Nakamura
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takanori Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Rikito Endo
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Shun Sasaki
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Naomichi Takahashi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Yusuke Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Mamoru Hyodo
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, Toyota, Aichi, Japan
| | - Yoshihiro Hayakawa
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, Toyota, Aichi, Japan
| | - Hideyoshi Harashima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
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6
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Endo R, Nakamura T, Kawakami K, Sato Y, Harashima H. The silencing of indoleamine 2,3-dioxygenase 1 (IDO1) in dendritic cells by siRNA-loaded lipid nanoparticles enhances cell-based cancer immunotherapy. Sci Rep 2019; 9:11335. [PMID: 31383907 PMCID: PMC6683295 DOI: 10.1038/s41598-019-47799-w] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 07/24/2019] [Indexed: 12/04/2022] Open
Abstract
Cell-based therapy using dendritic cells (DC) represents a potent cancer immunotherapy. However, activated DC express indoleamine 2,3-dioxygenase 1 (IDO1), a counter-regulatory and tolerogenic molecule, leading to the inhibition of T cell activation and the promotion of T cell differentiation into regulatory T cells. Silencing the IDO1 gene in DC by small interfering RNA (siRNA) represents a potent therapeutic strategy. We report on the successful and efficient introduction of a siRNA targeting IDO1 into mouse DCs by a means of a multifunctional envelope-type nanodevice (MEND) containing a YSK12-C4 (YSK12-MEND). The YSK12-C4 has both fusogenic and cationic properties. The YSK12-MEND induced an effective level of gene silencing of IDO1 at siRNA doses in the range of 1–20 nM, a concentration that commercially available transfection reagents are not able to silence. The YSK12-MEND mediated IDO1 silencing had no effect on the characteristic determinants of DC phenotype such as CD11c, CD80 and MHC class II. The silencing of IDO1 in DC by the YSK12-MEND significantly enhanced the antitumor effect against E.G7-OVA tumor. Moreover, a decrease in the numbers of regulatory T cells in the tumor was observed in mice that were treated with the IDO1-silenced DC. The YSK12-MEND appears to be a potent delivery system for IDO1-silenced DC based cancer immunotherapy.
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Affiliation(s)
- Rikito Endo
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Takashi Nakamura
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan.
| | - Kyoko Kawakami
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Yusuke Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Hideyoshi Harashima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Japan.
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7
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Mohri K, Miyata K, Egawa T, Tanishita S, Endo R, Yagi H, Ukawa M, Ochiai K, Hiwatari KI, Tsubaki K, Shigeno K, Tobita E, Uto T, Baba M, Sakuma S. Effects of the Chemical Structures of Oligoarginines Conjugated to Biocompatible Polymers as a Mucosal Adjuvant on Antibody Induction in Nasal Cavities. Chem Pharm Bull (Tokyo) 2018; 66:375-381. [PMID: 29607903 DOI: 10.1248/cpb.c17-00834] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We have been investigating the potential of oligoarginine-linked polymers as an adjuvant for mucosal vaccination that induces immunoglobulin G (IgG) in systemic circulation and immunoglobulin A (IgA) secreted on the mucosa. Our latest infection experiments demonstrated that mice immunized nasally with a mixture of inactivated influenza viruses and poly(N-vinylacetamide-co-acrylic acid) (PNVA-co-AA) modified with D-octaarginine were perfectly protected from homologous virus infection. On the contrary, virus infection was observed in mice immunized with the antigen alone. This difference was presumably due to insignificant induction of secreted IgA on the nasal mucosa in the latter mice. Since it was unclear whether the current induction level was sufficient for heterologous virus infection, we evaluated the effects of the chemical structures of oligoarginines conjugated to PNVA-co-AA on induction of intranasal IgA. The number and optical activity of the arginine residues and the degree of modification with oligoarginines in the polymer backbone were listed as a factor that would influence IgA induction. Mouse experiments revealed that maximization of the modification resulted in an increase in adjuvant activities of oligoarginine-linked polymers most effectively. Glycine segments inserted between oligoarginines and the polymer backbone were a prerequisite for the maximization. The highest IgA level was observed when antigens were coadministered with diglycine-D-octaarginine-linked PNVA-co-AA.
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Affiliation(s)
- Kohta Mohri
- Faculty of Pharmaceutical Sciences, Setsunan University
| | - Kohei Miyata
- Faculty of Pharmaceutical Sciences, Setsunan University.,Life Science Materials Laboratory, ADEKA Co
| | - Tomomi Egawa
- Faculty of Pharmaceutical Sciences, Setsunan University
| | | | - Rikito Endo
- Faculty of Pharmaceutical Sciences, Setsunan University
| | - Haruya Yagi
- Faculty of Pharmaceutical Sciences, Setsunan University
| | - Masami Ukawa
- Faculty of Pharmaceutical Sciences, Setsunan University
| | | | | | | | | | | | | | - Masanori Baba
- Center for Chronic Viral Diseases, Kagoshima University
| | - Shinji Sakuma
- Faculty of Pharmaceutical Sciences, Setsunan University
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8
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Takemoto H, Fukushima R, Ishii S, Endo R, Koyama Y, Saito K, Noda S, Mihara C, Yamaguchi M, Kotani J. SUN-P229: Nutritional Status of Cancer Patients Seen from Nutritionday Oncology in Japan 2015. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30399-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Suzuki T, Moriya T, Endo R, Iwasaki N. A photo-responsive polymeric azopyridine ligand with metal-complexation sensitivity: application to coordination equilibrium studies on the polymer complexes of a cobalt(ii) Schiff base. Polym Chem 2017. [DOI: 10.1039/c6py02036d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photo-responsive polymeric azopyridine ligand with complexation sensitivity provided coordination equilibrium for complexation with cobalt salen in a dilute solution.
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Affiliation(s)
- T. Suzuki
- Department of Green & Sustainable Chemistry
- School of Engineering
- Tokyo Denki University
- Tokyo
- Japan
| | - T. Moriya
- Department of Green & Sustainable Chemistry
- School of Engineering
- Tokyo Denki University
- Tokyo
- Japan
| | - R. Endo
- Department of Green & Sustainable Chemistry
- School of Engineering
- Tokyo Denki University
- Tokyo
- Japan
| | - N. Iwasaki
- Department of Green & Sustainable Chemistry
- School of Engineering
- Tokyo Denki University
- Tokyo
- Japan
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10
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Miyata K, Mohri K, Egawa T, Endo R, Morimoto N, Ochiai K, Hiwatari KI, Tsubaki K, Tobita E, Uto T, Baba M, Sakuma S. Demonstration of d-Octaarginine-Linked Polymers as Promising Adjuvants for Mucosal Vaccination through Influenza Virus Challenge. Bioconjug Chem 2016; 27:1865-71. [DOI: 10.1021/acs.bioconjchem.6b00283] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Kohei Miyata
- Faculty
of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
- Life
Science Materials Laboratory, ADEKA Co., 7-2-34 Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan
| | - Kohta Mohri
- Faculty
of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Tomomi Egawa
- Faculty
of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Rikito Endo
- Faculty
of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Naoki Morimoto
- Life
Science Materials Laboratory, ADEKA Co., 7-2-34 Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan
| | - Kyohei Ochiai
- Life
Science Materials Laboratory, ADEKA Co., 7-2-34 Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan
| | - Ken-ichiro Hiwatari
- Life
Science Materials Laboratory, ADEKA Co., 7-2-34 Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan
| | - Kazufumi Tsubaki
- Life
Science Materials Laboratory, ADEKA Co., 7-2-34 Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan
| | - Etsuo Tobita
- Life
Science Materials Laboratory, ADEKA Co., 7-2-34 Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan
| | - Tomofumi Uto
- School
of Medicine, Miyazaki University, Kihara 5200 Kiyotake-cho, Miyazaki, Miyazaki 889-1692, Japan
| | - Masanori Baba
- Graduate
School of Medical and Dental Sciences, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, Kagoshima 890-8544, Japan
| | - Shinji Sakuma
- Faculty
of Pharmaceutical Sciences, Setsunan University, 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
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11
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Ishii T, Toda R, Hanaoka Y, Tokiwa Y, Shimozawa M, Kasahara Y, Endo R, Terashima T, Nevidomskyy AH, Shibauchi T, Matsuda Y. Tuning the Magnetic Quantum Criticality of Artificial Kondo Superlattices CeRhIn_{5}/YbRhIn_{5}. Phys Rev Lett 2016; 116:206401. [PMID: 27258878 DOI: 10.1103/physrevlett.116.206401] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Indexed: 06/05/2023]
Abstract
The effects of reduced dimensions and the interfaces on antiferromagnetic quantum criticality are studied in epitaxial Kondo superlattices, with alternating n layers of heavy-fermion antiferromagnet CeRhIn_{5} and seven layers of normal metal YbRhIn_{5}. As n is reduced, the Kondo coherence temperature is suppressed due to the reduction of effective Kondo screening. The Néel temperature is gradually suppressed as n decreases and the quasiparticle mass is strongly enhanced, implying dimensional control toward a quantum critical point. Magnetotransport measurements reveal that a quantum critical point is reached for the n=3 superlattice by applying small magnetic fields. Remarkably, the anisotropy of the quantum critical field is opposite to the expectations from the magnetic susceptibility in bulk CeRhIn_{5}, suggesting that the Rashba spin-orbit interaction arising from the inversion symmetry breaking at the interface plays a key role for tuning the quantum criticality in the two-dimensional Kondo lattice.
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Affiliation(s)
- T Ishii
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - R Toda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Hanaoka
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Tokiwa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Research Center for Low Temperature and Materials Science, Kyoto University, Kyoto 606-8501, Japan
| | - M Shimozawa
- Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - Y Kasahara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - R Endo
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Terashima
- Research Center for Low Temperature and Materials Science, Kyoto University, Kyoto 606-8501, Japan
| | - A H Nevidomskyy
- Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - T Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Chiba 277-8561, Japan
| | - Y Matsuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
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Shibuya T, Itagaki K, Ueyama S, Hirai N, Endo R. Atmospheric Humidity Influences Oviposition Rate of Tetranychus urticae (Acari: Tetranychidae) Through Morphological Responses of Host Cucumis sativus Leaves. J Econ Entomol 2016; 109:255-8. [PMID: 26511981 DOI: 10.1093/jee/tov312] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 10/07/2015] [Indexed: 05/27/2023]
Abstract
We investigated the effects of morphology of host cucumber, Cucumis sativus L., leaves acclimatized to different atmospheric humidity levels on oviposition by adult females of the twospotted spider mite, Tetranychus urticae Koch. Cucumber seedlings were grown at a vapor pressure deficit (VPD) of 0.4, 1.9, or 3.0 kPa at 28°C (90%, 50%, or 20% relative humidity, respectively) in growth chambers until the second true leaves had expanded. Adult females of T. urticae were released on the adaxial surfaces of leaf squares cut from first and second true leaves in each treatment group, and held in the same humidity condition. Eggs were counted 2 d after release. The lower acclimatization humidity (higher VPD) increased trichome (leaf hair) density of the host leaves and oviposition rate, but the relationship between the trichome and oviposition differed between leaf positions. The leaf mass per area (LMA) was greater in first true leaves than in second true leaves, but was not influenced by VPD. A linear regression model with oviposition rate as the dependent variable and trichome density and LMA as independent variables showed that both variables influenced the oviposition rate approximately equally. We conclude that oviposition was accelerated under low humidity (high VPD) conditions indirectly probably through an increase in the trichome density of host leaves.
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Affiliation(s)
- T Shibuya
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai 599-8531, Japan (; ; ; ),
| | - K Itagaki
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai 599-8531, Japan (; ; ; )
| | - S Ueyama
- School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - N Hirai
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai 599-8531, Japan (; ; ; )
| | - R Endo
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai 599-8531, Japan (; ; ; )
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Endo R, Bahrudin U, Notsu T, Tanno S, Onohara T, Yamaguchi S, Ikeda N, Surastri B, Nakayama Y, Ninomiya H, Shirayoshi Y, Inagaki Y, Yamamoto K, Yoshida A, Hisatome I. Carvedilol Suppresses Apoptosis and Ion Channel Remodelling of HL-1 Cardiac Myocytes Expressing E334K cMyBPC. Drug Res (Stuttg) 2015; 66:126-9. [PMID: 26479129 DOI: 10.1055/s-0035-1555772] [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: 10/22/2022]
Abstract
BACKGROUND Besides its antiarrhythmic action, carvedilol has an activity to suppress cardiac tissue damage. However, it is unknown whether it has any effect on cellular apoptosis and ion channel remodelling. PURPOSE To know whether carvedilol has any effect on apoptosis and ion channel remodeling of HL-1 cells expressing E334K MyBPC, and comparing it with bisoprolol. METHOD We examined effects of carvedilol and bisoprolol on the levels of pro- and anti-apoptotic proteins and ion channels as well as apoptosis of HL-1 cells transfected with E334K MyBPC using Western blot and flow cytometry. RESULTS Carvedilol decreased the protein levels of p53, Bax and cytochrome c and increased that of Bcl-2 in HL-1 cells expressing E334K MyBPC. Bisoprolol failed to affect the protein levels. Both carvedilol and bisoprolol increased the protein levels of Cav1.2 but not that of Nav1.5. Carvedilol was stronger than bisoprolol at decreasing the number of annexin-V positive cells in HL-1 cells expressing E334K MyBPC. CONCLUSION Carvedilol suppressed apoptosis of HL-1 cells expressing E334K MyBPC through modification of pro- and anti-apoptotic proteins, whose was associated with an increase of Cav 1.2 protein expression.
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Affiliation(s)
- R Endo
- Department of Anesthesiology, Tottori University Faculty of Medicine, Yonago, Japan
| | - U Bahrudin
- Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - T Notsu
- Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - S Tanno
- Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - T Onohara
- Division of Organ Regeneration Surgery, Tottori University Faculty of Medicine, Yonago, Japan
| | - S Yamaguchi
- Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - N Ikeda
- Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - B Surastri
- Department of Pharmacology, Diponegoro University Faculty of Medicine, Semarang, Indonesia
| | - Y Nakayama
- Division of Functional Genomics, Research Center for Bioscience and Technology, Tottori University, Yonago, Japan
| | - H Ninomiya
- Department of Biological Regulation, Tottori University Faculty of Medicine, Yonago, Japan
| | - Y Shirayoshi
- Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - Y Inagaki
- Department of Anesthesiology, Tottori University Faculty of Medicine, Yonago, Japan
| | - K Yamamoto
- Department of Multidisciplinary Internal Medicine, School of Medicine, Tottori University, Yonago, Japan
| | - A Yoshida
- Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - I Hisatome
- Division of Regenerative Medicine and Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Japan
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Sakuma S, Morimoto N, Nishida K, Murakami T, Egawa T, Endo R, Kataoka M, Yamashita S, Miyata K, Mohri K, Ochiai K, Hiwatari KI, Koike S, Tobita E, Uto T, Baba M. Cross-reactivity of immunoglobulin A secreted on the nasal mucosa in mice nasally inoculated with inactivated H1N1 influenza A viruses in the presence of D-octaarginine-linked polymers. Eur J Pharm Biopharm 2015; 92:56-64. [PMID: 25720816 DOI: 10.1016/j.ejpb.2015.02.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 08/20/2014] [Revised: 12/26/2014] [Accepted: 02/09/2015] [Indexed: 10/24/2022]
Abstract
We evaluated cross-reactivity of immunoglobulin A (IgA) secreted on the nasal mucosa in mice that were nasally inoculated 4 times with a mixture of inactivated H1N1 influenza A viruses and poly(N-vinylacetamide-co-acrylic acid) (PNVA-co-AA) bearing d-octaarginine at 7-day intervals. Three viral strains (A/Puerto Rico/8/34, A/New Caledonia/20/99 IVR116, and A/Solomon Islands/03/2006) and D-octaarginine-linked polymers with different molecular weights were used as antigens and their carriers, respectively. Secretion of intranasal IgA was barely observed when the inactivated virus alone was administered. The polymer induced the production of intranasal IgA specific to the inoculated viruses, irrespective of the viral strain and molecular weight of the polymer. The respective antibodies cross-reacted to recombinant hemagglutinin proteins of not only the viral strain used for immunization but also other H1N1 strains, including A/Puerto Rico/8/34 strain whose hemagglutinin proteins are diverse from those of other strains. Mice with high reactivity of IgA to the inoculated viruses tended to acquire clear cross-reactivity to other viral strains. Notably, IgA induced by inactivated H1N1 A/New Caledonia/20/99 IVR116 strain with the strongest immunogenicity between 3 antigens in the presence of the polymer cross-reacted to recombinant hemagglutinin proteins of the A/Brisbane/10/2007 and A/Viet Nam/1194/2004 strains, which are categorized into H3N2 and H5N1, respectively. Our polymer is a potential candidate for an efficient antigen carrier that induces mucosal IgA having cross-reactivity to antigenically drifted variants, irrespective of the subtype of viral strains.
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Affiliation(s)
- Shinji Sakuma
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan.
| | - Naoki Morimoto
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan; Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan
| | - Kazuhiro Nishida
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan
| | - Tomofumi Murakami
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan
| | - Tomomi Egawa
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan
| | - Rikito Endo
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan
| | - Makoto Kataoka
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan
| | - Shinji Yamashita
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan
| | - Kohei Miyata
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan; Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan
| | - Kohta Mohri
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan
| | - Kyohei Ochiai
- Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan
| | | | - Seiji Koike
- Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan
| | - Etsuo Tobita
- Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan
| | - Tomofumi Uto
- Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Masanori Baba
- Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
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15
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Shimozawa M, Goh SK, Endo R, Kobayashi R, Watashige T, Mizukami Y, Ikeda H, Shishido H, Yanase Y, Terashima T, Shibauchi T, Matsuda Y. Controllable Rashba spin-orbit interaction in artificially engineered superlattices involving the heavy-fermion superconductor CeCoIn5. Phys Rev Lett 2014; 112:156404. [PMID: 24785062 DOI: 10.1103/physrevlett.112.156404] [Citation(s) in RCA: 4] [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: 12/24/2013] [Indexed: 06/03/2023]
Abstract
By using a molecular beam epitaxy technique, we fabricate a new type of superconducting superlattices with controlled atomic layer thicknesses of alternating blocks between the heavy-fermion superconductor CeCoIn5, which exhibits a strong Pauli pair-breaking effect, and nonmagnetic metal YbCoIn5. The introduction of the thickness modulation of YbCoIn5 block layers breaks the inversion symmetry centered at the superconducting block of CeCoIn5. This configuration leads to dramatic changes in the temperature and angular dependence of the upper critical field, which can be understood by considering the effect of the Rashba spin-orbit interaction arising from the inversion symmetry breaking and the associated weakening of the Pauli pair-breaking effect. Since the degree of thickness modulation is a design feature of this type of superlattices, the Rashba interaction and the nature of pair breaking are largely tunable in these modulated superlattices with strong spin-orbit coupling.
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Affiliation(s)
- M Shimozawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - S K Goh
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan and Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - R Endo
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - R Kobayashi
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Watashige
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Mizukami
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Ikeda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Shishido
- Department of Physics and Electronics, Osaka Prefecture University, Osaka 599-8531, Japan
| | - Y Yanase
- Department of Physics, Niigata University, Niigata 950-2181, Japan
| | - T Terashima
- Research Center for Low Temperature and Materials Science, Kyoto University, Kyoto 606-8501, Japan
| | - T Shibauchi
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Matsuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
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Khanh N, Kitaya Y, Xiao L, Endo R, Shibuya T. Selection of microalgae suitable for culturing with digestate from methane fermentation. Environ Technol 2013; 34:2039-2045. [PMID: 24350457 DOI: 10.1080/09593330.2013.828093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The effects ofdigestate on the growth rates of Euglena gracilis, Chlorella vulgaris, and Dunaliella tertiolecta were investigated to select suitable microalgae for culturing with digestate from methane fermentation. Microalgae were cultured in an aqueous solution containing digestate at concentrations of 5%, 10%, 13%, 20%, 40%, 50%, and 100%, and Cramer-Myers (CM) solution as a control, at photosynthetic photon flux densities (PPFDs) of 75-150 micromol m(-2) s(-1) with continuous illumination at 30 degrees C. The number of cells was monitored daily, and specific growth rates (mu) were calculated as cellular multiplication rates. The maximum mu values of these species were greater in appropriate concentrations of digestate than in CM medium. The maximum mu values were 0.047 h(-1) in 10% digestate for E. gracilis, 0.065 h(-1) in 20% digestate for C. vulgaris, and 0.052 h(-1) in 50% digestate for D. tertiolecta at a PPFD of 150 micromol m(-2) s(-1). The mu of D. tertiolecta were 2.5 and 1.1 times higher than those of E. gracilis and C. vulgaris, respectively, in 50% digestate. These results demonstrated that these species could be cultured at high growth rates with diluted methane fermentation sludge and that, among these species, Dunaliella sp. was suitable for culturing at higher concentration of digestate under relatively low-level light conditions.
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Affiliation(s)
- N Khanh
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - Y Kitaya
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - L Xiao
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - R Endo
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - T Shibuya
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
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17
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Bahrudin U, Ikeda N, Utami S, Maharani N, Morikawa K, Li P, Sobirin M, Hasegawa A, Sakata S, Endo R, Rifqi S, Shirayoshi Y, Yamamoto K, Ninomiya H, Hisatome I. Simultaneous Treatment with Azelnidipine and Olmesartan Inhibits Apoptosis of Hl-1 Cardiac Myocytes Expressing E334k cMyBPC. Drug Res (Stuttg) 2013; 63:515-20. [DOI: 10.1055/s-0033-1347188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- U. Bahrudin
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - N. Ikeda
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - S. Utami
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - N. Maharani
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - K. Morikawa
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - P. Li
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - M. Sobirin
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - A. Hasegawa
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - S. Sakata
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - R. Endo
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - S. Rifqi
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Y. Shirayoshi
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
| | - K. Yamamoto
- Department of Multidisciplinary Internal Medicine, School of Medicine, Tottori University, Yonago, Japan
| | - H. Ninomiya
- Department of Biological Regulation, Faculty of Medicine, Tottori University Yonago, Japan
| | - I. Hisatome
- Division of Regenerative Medicine and Therapeutics, Institute of Regenerative Medicine and Biofunction, Tottori University Graduate School of Medical Science, Yonago, Japan
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18
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Uddin AJ, Ohkoshi Y, Gotoh Y, Nagura M, Endo R, Hara T. Effects of Take-up Speed of Melt Spinning on the Structure and Mechanical Propertiesof Maximally Laser Drawn PA9-T Fibers. INT POLYM PROC 2013. [DOI: 10.3139/217.0090] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
A new semiaromatic polyamide, PA9-T, was melt-spun at take-up speeds from 200 to 1000m min−1. The as-spun fibers were drawn with CO2 laser-heated drawing to their maximal draw ratio (DRmax). The drawing stress was recorded during this process. The effects of take-up speed of melt-spinning on maximally drawn fibers were characterized through measurements of density, birefringence, wide-angle X-ray diffraction, crystal orientation, tensile testing, and dynamic viscoelastic analysis. All as-spun fibers were essentially amorphous and their birefringence and density increased slightly with the increase of take-up speed. Lower take-up speeds yielded higher DRmax values, and fibers drawn to their DRmax exhibited superior structure and mechanical properties. The tensile strength and Young's modulus achieved were the highest reported to date for PA9-T: 737 MPa and 5.8 GPa, respectively.
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Affiliation(s)
- A. J. Uddin
- Faculty of Textile Science & Technology, Shinshu University, Nagano, Japan
| | - Y. Ohkoshi
- Faculty of Textile Science & Technology, Shinshu University, Nagano, Japan
| | - Y. Gotoh
- Faculty of Textile Science & Technology, Shinshu University, Nagano, Japan
| | - M. Nagura
- Faculty of Textile Science & Technology, Shinshu University, Nagano, Japan
| | - R. Endo
- Kuraray Co. Ltd., Kurashiki, Japan
| | - T. Hara
- Kuraray Co. Ltd., Kurashiki, Japan
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Endo R, Ishii A, Nakanishi A, Nabenishi H, Ashizawa K, Tsuzuki Y. Effect of the Addition of β-Hydroxybutyrate to Chemically Defined Maturation Medium on the Nuclear Maturation, Sperm Penetration and Embryonic Development of Porcine Oocytes In vitro. Asian Australas J Anim Sci 2010. [DOI: 10.5713/ajas.2010.10073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Jalal Uddin A, Ohkoshi Y, Gotoh Y, Nagura M, Endo R, Hara T. Melt spinning and laser-heated drawing of a new semiaromatic polyamide, PA9-T fiber. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/polb.10710] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Kawamoto I, Shimoji Y, Kanno O, Endo R, Miyauchi M, Kojima K, Ishikawa K, Morimoto M, Ohya S. Synthesis and antibacterial activity of novel 1beta-methyl carbapenems with cycloalkylamine moiety at the C-2 position. J Antibiot (Tokyo) 2001; 54:1080-92. [PMID: 11858664 DOI: 10.7164/antibiotics.54.1080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 11/21/2022]
Abstract
Novel 1beta-methyl carbapenems with a cycloalkylamine moiety as a side chain were synthesized and their structure-activity relationships were studied. These carbapenems showed potent antibacterial activities against a wide range of Gram-positive and Gram-negative bacteria, and moderate urinary recovery when administered intraperitoneally in mice.
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Affiliation(s)
- I Kawamoto
- Research Laboratories, Sankyo Co., Ltd., Tokyo, Japan
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22
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Sato S, Kumagai I, Chida T, Yamaguchi T, Sakashita Y, Fujiwara T, Sasaki H, Kumagai K, Endo R, Iwai M, Kato C, Takikawa Y, Suzuki K, Masuda T, Ouchu K. [A case of intractable intrahepatic cholestasis treated with coenzyme Q10 (ubidecarenone)]. Nihon Shokakibyo Gakkai Zasshi 2000; 97:1487-91. [PMID: 11193494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
- S Sato
- First Department of Internal Medicine, School of Medicine, Iwate Medical University
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23
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Kawano T, Furukawa S, Matsuda H, Takahashi M, Endo R, Inoue M, Nishimura G, Tsukuda M. [Antitumor effect of the angiogenesis inhibitor, TNP470, on squamous cell carcinoma cells in head and neck cancer]. Nihon Jibiinkoka Gakkai Kaiho 2000; 103:821-8. [PMID: 10946555 DOI: 10.3950/jibiinkoka.103.821] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The antitumor effect of the angiogenesis inhibitor TNP470, O-(chloro-acetyl-carbamoyl) fumagillol, a synthetic analogue of fumagillin, was studied in vitro and in vivo on, cell line KB which produced interleukin (IL)-8. In vitro, TNP470 reduced the production of IL-8 from KB cells, the same as anti-IL-8 antibody (Ab.) The combination of anti-IL-8 Ab (10 micrograms/ml) and TNP470 (10 ng/ml) significantly inhibited the proliferation of KB cells, compared to no treatment (p < 0.05). Proliferation of KB cells was also significantly more suppressed by simultaneous treatment of cisplatin and TNP470 (1 mg/ml), than cisplatin alone. The in vivo antitumor effect of TNP470 was studied using anti-IL-8 Ab, anti-vascular endothel growth factor (VEGF) Ab, and TNP470, in administered by different routes, i.e., intratumoral (i.t.), intraperitoneal (i.p.), and intravenous. TNP470 (10 mg/ml) showed an antitumor effect, and intratumoral administration of TNP470 was the most effective route. Combined administration of anti-IL-8 Ab (i.p.) and TNP470 (i.t.) reduced tumor volume more than anti-IL-8 Ab alone did. These results suggest that the combination of TNP470, cisplatin, and anti-IL-8 Ab could be a beneficial treatment for solid tumors of the head and neck.
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Affiliation(s)
- T Kawano
- Department of Otorhinolaryngology, Yokohama City Medical Center Hospital
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24
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Endo R, Murakami S, Masuda Y, Taguchi T, Ohtsuka A, Nishizaki K, Murakami T. The perineuronal proteoglycan surface coat in the adult rat brain, with special reference to its reactions to Gömöri's ammoniacal silver. Acta Med Okayama 2000; 54:111-8. [PMID: 10925735 DOI: 10.18926/amo/32301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The present study showed that many neurons in the adult rat brain possessed a perineuronal sulfated proteoglycan surface coat which reacted to cationic iron colloid and aldehyde fuchsin. This surface coat was stained supravitally with Ehrlich's methylene blue and doubly stained with Ehrlich's methylene blue and aldehyde fuchsin. The surface coat was also stained with Gömöri's ammoniacal silver and doubly stained with Gömöri's ammoniacal silver and cationic iron colloid. The surface coat was usually expressed together with a nerve cell surface glycoprotein net detectable with lectin Wisteria floribunda agglutinin. These findings indicate that the perineuronal proteoglycan surface coat is identical to Cajal's superficial reticulum and contains some collagenous elements. It was further demonstrated that collagenase digestion erased Gömöri's ammoniacal silver impregnation within the perineuronal proteoglycan surface coat.
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Affiliation(s)
- R Endo
- Department of Otolaryngology, Okayama University Medical School, Japan
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25
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Ishikawa K, Kojima K, Miyauchi M, Endo R, Yasuda H, Kawamoto I. Synthesis and structure-activity relationships of 1beta-methylcarbapenems with quaternary ammonium side chains. J Antibiot (Tokyo) 1998; 51:757-70. [PMID: 9766468 DOI: 10.7164/antibiotics.51.757] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 11/21/2022]
Abstract
The synthesis and antibacterial activity of 1beta-methylcarbapenems with quaternary ammonium groups at the C-2 position have been studied. Two types of new carbapenem derivatives have been synthesized. These 1beta-methylcarbapenems, one type having a (2S,4S)-2-[1,1-dimethyl-2-(1-piperazinyl)carbonyl]pyrrolidinio-4-+ ++ylthio group and the other type having a (2S,4S)-2-(4-carbamoylmethyl-4-methylhomopiperazinio-1-yl carbonyl)pyrrolidin-4-ylthio group, show potent and well balanced antibacterial activity as well as high stability against dehydropeptidase-I. The in vivo potency of these two carbapenems was compared with that of meropenem. The structure-activity relationships leading to these carbapenems are also described.
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Affiliation(s)
- K Ishikawa
- Research Laboratories, Sankyo Co., Ltd., Tokyo, Japan
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26
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Honda K, Yamada T, Endo R, Ino Y, Gotoh M, Tsuda H, Yamada Y, Chiba H, Hirohashi S. Actinin-4, a novel actin-bundling protein associated with cell motility and cancer invasion. J Cell Biol 1998; 140:1383-93. [PMID: 9508771 PMCID: PMC2132673 DOI: 10.1083/jcb.140.6.1383] [Citation(s) in RCA: 362] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/1997] [Revised: 01/13/1998] [Indexed: 02/06/2023] Open
Abstract
Regulation of the actin cytoskeleton may play a crucial role in cell motility and cancer invasion. We have produced a monoclonal antibody (NCC- Lu-632, IgM, k) reactive with an antigenic protein that is upregulated upon enhanced cell movement. The cDNA for the antigen molecule was found to encode a novel isoform of nonmuscle alpha-actinin. This isoform (designated actinin-4) was concentrated in the cytoplasm where cells were sharply extended and in cells migrating and located at the edge of cell clusters, but was absent from focal adhesion plaques or adherens junctions, where the classic isoform (actinin-1) was concentrated. Actinin-4 shifted steadily from the cytoplasm to the nucleus upon inhibition of phosphatidylinositol 3 kinase or actin depolymerization. The cytoplasmic localization of actinin-4 was closely associated with an infiltrative histological phenotype and correlated significantly with a poorer prognosis in 61 cases of breast cancer. These findings suggest that cytoplasmic actinin-4 regulates the actin cytoskeleton and increases cellular motility and that its inactivation by transfer to the nucleus abolishes the metastatic potential of human cancers.
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Affiliation(s)
- K Honda
- Pathology Division, National Cancer Center Research Institute, Tokyo 104, Japan
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27
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Abstract
To improve cancer chemotherapy, a better understanding of the molecular mechanisms of drug resistance is essential. To identify the molecules responsible for drug resistance that is unrelated to MDR1 or MRP gene products, a eukaryotic expression cDNA library of cis-diamminedichloroplatinum(II) (CDDP)-resistant ovarian cancer TYKnuR cells was introduced into Cos-7 cells. After repeated CDDP selection, cDNA homologous to murine semaphorin E was isolated from surviving cells. Human semaphorin E (H-sema E) was overexpressed in CDDP-resistant cell lines and was readily induced not only by diverse chemotherapeutic drugs but also by x-ray and UV irradiation. Transfection of H-sema E conferred a drug-resistant phenotype to CDDP-sensitive cells. In addition, the aberrant expression of H-sema E protein was detected immunohistochemically in 14 of 42 (33.3%) recurrent squamous cell carcinomas removed at autopsy after extensive radiochemotherapy. Recently, another member of the semaphorin family, CD100, was shown to significantly improve the viability of B lymphocytes. These results suggest the involvement of semaphorins in diverse cell survival mechanisms.
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Affiliation(s)
- T Yamada
- Pathology Division, National Cancer Center Research Institute, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104, Japan
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28
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Takahashi H, Miura Y, Yamada H, Nakamura Y, Sugawara M, Endo R, Orii S, Sato K, Sato S, Sugai T, Nakamura S, Sasaki R. [A case of hemorrhagic retention cyst of the pancreas]. Nihon Shokakibyo Gakkai Zasshi 1997; 94:792-7. [PMID: 9396338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- H Takahashi
- First Department of Internal Medicine, Iwate Medical University
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29
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Abstract
We have studied an ester prodrug of a carbapenem to develop a potent orally active beta-lactam antibiotic. A variety of 1 beta-methylcarbapenem derivatives have been synthesized. We have found that some derivatives having an amide group in the C-2 side chain show potent and well balanced antibacterial activities as well as high stability against dehydropeptidase-I. Oral absorption of derivatives has been optimized by modifying the C-3 ester promoiety. Pivaloyloxymethyl (1R, 5S, 6S)-6-[(R)-1-hydroxyethyl]-l-methyl-2-[(R)-5-oxopyrrolidin-3-yl thio]- l-carbapen-2-em-3-carboxylate, CS-834, has been selected as the most promising compound for further evaluation.
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Affiliation(s)
- M Miyauchi
- Research Laboratories, Sankyo Co., Ltd., Tokyo, Japan
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30
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Yamada T, Endo R, Tsukagoshi K, Fujita S, Honda K, Kinoshita M, Hasebe T, Hirohashi S. Aberrant expression of a hemidesmosomal protein, bullous pemphigoid antigen 2, in human squamous cell carcinoma. J Transl Med 1996; 75:589-600. [PMID: 8874389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Through yet unidentified mechanisms, squamous epithelial cells become committed to terminal differentiation after detachment from the basement membrane. In squamous cell carcinoma, these mechanisms seem to be disturbed. A murine monoclonal antibody, designated NCC-Lu-226 (IgG1, K), which recognizes an antigen expressed in basal cells of squamous epithelium at the epithelio-connective tissue border, was obtained. A cDNA clone encoding the antigen was isolated from a cDNA library by immunoselection. DNA sequencing and a database search revealed that this cDNA clone was identical to a hemidesmosomal transmembrane protein, bullous pemphigoid antigen 2 (BPA-2; also known as BPAG2, BP180, or type XVII collagen). Immunoelectron microscopy validated the specific reactivity of this monoclonal antibody with skin hemidesmosomes. Enhanced expression and abnormal distribution of BPA-2 was revealed immunohistochemically in various precancerous and cancerous tissues, including solar keratosis (4 of 5), Bowen's disease (3 of 5), invasive squamous cell carcinoma (7 of 7) of the skin, and squamous cell carcinoma of the lung (14 of 14), esophagus (12 of 13), and cervix (14 of 17). The specific expression of BPA-2 protein in squamous cell carcinoma was confirmed by RT-PCR and Northern hybridization. BPA-2 has possible phosphorylation sites and is actually phosphorylated in cultured keratinocytes and squamous cell carcinoma. The aberrant expression of BPA-2 may reflect dysfunction of the hemidesmosome that occurs as a relatively early event in multistep carcinogenesis of squamous epithelium.
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Affiliation(s)
- T Yamada
- Pathology Division, National Cancer Center Research Institute, Tokyo, Japan
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31
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Endo R. [Histopathological and electron microscopic changes in mice treated with puffer fish toxin]. J Toxicol Sci 1996; 21 Suppl 1:1-14. [PMID: 8709155 DOI: 10.2131/jts.21.supplementi_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The histopathological examination of a male ddY mouse given an intraperitoneal injection of the crude extract containing 169 micrograms/ml of tetrodotoxin (TTX) prepared from the ovary of Takifugu porphyreus was carried out. Two crude extract solutions (0.42 and 0.21 microgram/ml) were prepared; one kills an animal in 10 min (group 1), and other kills it in 40 min (group 2) after the injection. As a result, a remarkable inflation of the gall bladder was observed macroscopically in both groups. By light microscopic observed, both groups showed the congestion in the brain, heart, liver, gall bladder, lung and kidneys, while nerve cells were characterized by the vacuolation and disappearance of Nissl's body only in group 2, probably because of the mitochondrial degeneration. Electron microscopically, a part of cristae of mitochondria and ribosome of endoplasmic reticulum disappeared or vacuolated in the nerve cells of group 2. This was also observed in a part of pre and postsynaptic mitochondria of synapse. However, little significant changes were observed in group 1 and in other tissues of group 2. These results show that a cytopathological change of mice by TTX is mainly detected in nerve tissues when a small amount of TTX is administered to the animals.
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Affiliation(s)
- R Endo
- Yamaguchi Prefectural Research Institute of Health, Japan
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32
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Abstract
We evaluated serum hyaluronate (HA) levels in 17 patients with acute hepatitis and 9 with fulminant hepatitis (FH). Upon admission, patients with FH showed increased levels of serum HA and these levels showed significant correlation with biochemical parameters such as human hepatocyte growth factor, hepaplastin test, and prothrombin activity. In patients with AH, the levels of serum HA decreased during convalescence. Higher serum HA levels were observed in patients with type A acute hepatitis than in patients with non-A type. In patients with FH, serum HA levels were decreased in the survivors, while they were elevated in the non-survivors. These findings suggest that serum HA levels may be a useful indicator for evaluating the prognosis of patients with acute and fulminant hepatitis. Further study is necessary to determine whether there is a causal relationship between elevated serum HA levels and the type of hepatitis virus.
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Affiliation(s)
- K Suzuki
- First Department of Internal Medicine, Iwate Medical University School of Medicine, Morioka, Japan
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33
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Yamami N, Shibayama M, Sera AM, Takahashi M, Nakayama T, Endo R, Kawashima M, Nakamura T, Mano Y. [Health check on divers and compressed air workers]. Sangyo Eiseigaku Zasshi 1996; 38:23-9. [PMID: 8909561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We have conducted the health check of 3,554 compressed air workers and 1,821 divers, and also examined the incidence and severity of aseptic bone necrosis by using Roentgen pictures. We could classify 4,859 of 5,375 persons into four groups (A-D), based on our classification. We could also classify 4,205 of 5,375 persons that had had a bone X ray examination on the basis of the criteria described by Ota and Matsunaga (A-C). 4,859 persons belonged to four groups: class A (persons who can work, no limitations): 4,099 (84.4%), class B (persons who can work under conditions below 1.0 kg/cm2): 357 (7.3%), class C (persons who had better quit work under hyperbaric conditions, though they are not prohibited by regulations): 183 (3.8%), class D (persons who must be prohibited from working in a hyperbaric environment by laws of the Ministry of Labor): 88 (1.8%). About 90% of compressed air workers and divers (classes A and B) were permitted to work under hyperbaric conditions. Most of those belonging to classes C and D suffered from hypertension, cardiovascular disease and liver dysfunction. The incidence of aseptic bone necrosis was 11.1% (465 out of 4,205 persons). Eight persons (2.2%) belonged to criteria A which means poor prognosis. They were classified into class D. There is no differences between compressed air workers and divers in the incidence of aseptic bone necrosis.
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Affiliation(s)
- N Yamami
- Department of Allied Health Sciences, Faculty of medicine, Tokyo Medical and Dental University, Japan
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34
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Endo R. A question of ethics? Purchasing a kidney transplant: a story of life regained. Nephrol News Issues 1995; 9:22, 26, 30. [PMID: 7477482] [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: 01/25/2023]
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35
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Yamada T, Jiping J, Endo R, Gotoh M, Shimosato Y, Hirohashi S. Molecular cloning of a cell-surface glycoprotein that can potentially discriminate mesothelium from epithelium: its identification as vascular cell adhesion molecule 1. Br J Cancer 1995; 71:562-70. [PMID: 7533516 PMCID: PMC2033655 DOI: 10.1038/bjc.1995.110] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
It has long been a practical problem for surgical pathologists to distinguish mesothelium from epithelium in order to make a positive diagnosis of mesothelioma. In this study, we developed a new monoclonal antibody, designated MS-2761 (IgG1, k), against cultured non-neoplastic mesothelial cells. Immunohistochemistry and slot-blot analysis revealed that this monoclonal antibody reacted with 100% (12/12) of benign and malignant mesothelioma tissues and a mesothelioma cell line, but not with 99% (77/78) of epithelial tumour tissues and 97% (33/34) of epithelial tumour cell lines. A gene encoding the cell-surface antigen defined by this monoclonal antibody was isolated from a mesothelial cell cDNA library constructed with a mammalian cell expression vector through transfection of Cos-7 cells and immunoselection by panning. DNA sequencing and a database search revealed that the gene was identical to vascular cell adhesion molecule 1 (VCAM1, also referred to as INCAM110). The prominent VCAM1 transcript in mesothelium was 3.2 kb in size with seven Ig-like domains, in addition to a minor transcripts with six Ig-like domains. This monoclonal antibody potentially discriminates mesothelium from epithelium and may become a tool for differential diagnosis of mesothelioma.
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Affiliation(s)
- T Yamada
- Pathology Division, National Cancer Center Hospital, Tokyo, Japan
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36
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Mizumoto Y, Okuyama T, Endo R, Temmyo M, Horie M, Ogura H, Abe M. [Measurement and fluctuation of urinary glucaric acid in pregnant women]. Nihon Sanka Fujinka Gakkai Zasshi 1994; 46:567-72. [PMID: 8089594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
It is known that urinary excretion of glucaric acid (GA) is an indirect index of hepatic P-450 microenzyme induction. We measured and analyzed urinary excretion of GA and plasma lipids in non-pregnant women, pregnant women and postpartum women. GA was measured by a new method for the inhibition of beta-glucuronidase activity and plasma lipids were measured by routine laboratory methods and we obtained the following results. 1. The concentration of urinary GA was correlated with that of urinary creatinine in pregnant women. 2. The urinary GA and plasma HDL-cholesterol did not change during the first of gestation, but steeply increased in the middle of gestation, and postpartum values were lower than at term. 3. Plasma total lipids, triglycerides, and total cholesterol continuously increased throughout gestation. 4. Plasma free fatty acids and lipid peroxide steeply increased in late in gestation. These results and several reports suggested that the change in GA in pregnant women reflected their own metabolism not fetal or placental metabolism. It seems that grasping and understanding their metabolism can make their disease clear.
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Affiliation(s)
- Y Mizumoto
- Department of Obstetrics and Gynecology, SDF Central Hospital, Tokyo
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37
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Mizumoto Y, Okuyama T, Horie M, Endo R, Tenmyo M, Ogura H, Abe M. [Lipids metabolism evaluated of by vitamin E to total lipid ratio in maternal and cord sera in normal pregnancy]. Nihon Sanka Fujinka Gakkai Zasshi 1994; 46:315-21. [PMID: 8151173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Changes in plasma levels of lipids peroxide (LPO) and vitamin E(VE) are observed in pregnant women. We measured levels of VE and lipids in 80 maternal and cord sera in normal delivery and obtained the following results. 1. For each lipid and VE, the concentration gradients were preserved in maternal sera to cord sera through placentas. 2. The concentration of VE correlated with that of total lipids (TL) in both sera. 3. The VE to TL ratio (VE/TL ratio) inversely correlated with the concentration of LPO in both sera. 4. The concentration of VE correlated with the VE/TL ratio and there was a more significant correlation of the VE and VE/TL ratio than that of VE and TL in both sera. 5. The VE/TL ratio in maternal serum correlated with VE/TL ratio and the concentration of VE in cord serum. These results suggested that lipids in serum was a regulatory factor in VE and that VE and lipids maintained the gradation of the concentration according to their own placental transport systems. It seems that the fetus has a unique VE which is comparatively lowered. This may be due to the effects of the accelerated lipid metabolism in the fetus.
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Affiliation(s)
- Y Mizumoto
- Department of Obstetrics and Gynecology, SDF Central Hospital, Tokyo
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38
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Mizumoto Y, Okuyama T, Endo R, Nakajima H, Hiramatsu H, Horie M, Masuda H, Kobayashi S, Saeki H, Abe M. [Studies on hypogeusia in hyperemesis gravidarum]. Nihon Sanka Fujinka Gakkai Zasshi 1994; 46:35-41. [PMID: 8308401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We measured changes in gustatory sensitivities and gustation threshold levels and those of some trace elements, vitamin E and lipids in the serum of 38 patients suffering from hyperemesis gravidarum, 12 normal pregnant women in the first trimester and 22 healthy non-pregnant women by means of filter discs and an electrogusto meter (EGM) and we obtained the following results. 1. Gustatory sensitivity to sweetness was found to be significantly lowered in the patients with hyperemesis gravidarum when tested with filter discs (p < 0.05). 2. Gustation threshold levels were significantly lowered in the patients with hyperemesis gravidarum and the normal pregnant women tested with the EGM (p < 0.01). 3. There was considerable heterogeusia of women in the patients with hyperemesis gravidarum (p < 0.05). 4. Zn and Mg in serum decreased (p < 0.01), but Cu increased significantly in the patients with hyperemesis gravidarum and the normal pregnant women (p < 0.01). 5. Total cholesterol and phospholipid in serum significantly decreased, but lipid peroxide in serum significantly increased in the patients with hyperemesis gravidarum (p < 0.01). These results suggested that the gustatory test was helpful in investigating hyperemesis gravidarum and that biological defense systems (scavenger systems) to free radicals were damaged in patients with hyperemesis gravidarum.
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Affiliation(s)
- Y Mizumoto
- Department of Obstetrics and Gynecology, SDF Central Hospital, Tokyo
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39
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Okuyama T, Mizumoto Y, Endo R, Hiramatsu H, Horie M, Saeki H, Abe M. [Measurement and its fluctuation of urinary glucaric acid in newborns]. Nihon Sanka Fujinka Gakkai Zasshi 1993; 45:629-35. [PMID: 8340644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
It is known that urinary excretion of glucaric acid(GA) is an indirect index of hepatic P-450 microenzyme induction. We measured and analyzed urinary excretion of GA in 56 newborns and 26 mothers by a new method for the inhibition of beta-glucuronidase activity and obtained the following results. 1. The concentration of urinary GA was correlated with that of urinary creatinine and total bilirubin in newborns. 2. There were no significant correlations between gestational age, sex, body weight at birth, placental weight and the urinary GA concentration. 3. The urinary excretion of GA in newborns was decreased the in first few days after birth, but a transitional increase was observed on the fifth day after birth. 4. The concentration of urinary GA was correlated with that of direct bilirubin in serum on the fifth day after birth. 5. There was a negative correlation between the urinary GA concentration on the first day after birth and that of direct bilirubin in serum on the fifth day after birth. These results suggested that hepatic P-450 microsomal enzyme was induced by bilirubin in newborns and it was possible to estimate the clinical course of jaundice by measuring the urinary excretion of GA.
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Affiliation(s)
- T Okuyama
- Tokyo Metropolitan Tsukiji Maternity Hospital
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40
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Abstract
A total of 54 strains including 8 serotypes of Yersinia pseudotuberculosis were examined to find out about their cell surface hydrophobicity and virulence plasmid-associated properties. All the strains which aggregated in 0.9% saline expressed the properties of calcium-dependent growth and autoagglutination. However, the hydrophilic strains did not possess virulence plasmid-associated properties. The above results suggest that the salting-out test with 0.9% saline could be an effective measure to differentiate the virulence plasmid-carrying strains of Y. pseudotuberculosis from those of plasmidless virulence.
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Affiliation(s)
- M Tomita
- Yamaguchi Prefectural Research Institute of Health, Japan
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41
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Hanaue H, Kanno K, Mukai M, Kubo H, Tobita K, Nakasaki H, Tajima T, Mitomi T, Endo R. Estimation of the functional reserve of the human liver by urinary D-glucaric acid excretion after vitamin C administration. Tokai J Exp Clin Med 1993; 18:1-4. [PMID: 7940601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The excretion of D-glucaric acid in the urine (uGA) correlates with the total liver content of hepatic cytochrome P-450, the metabolism of which depends on adenosine triphosphate (ATP) being produced by intrahepatic cellular mitochondria. Five cases of compensated liver cirrhosis group with less than 0.4 mg/kg/min of the maximum removal rate of indocyanine green (ICGR max), and 5 cases with normal hepatic function (control group), were monitored for uGA before and after P-450 activation induced by administration of 1 g of vitamin-C. Before vitamin-C administration, no differences in uGA excretion were observed comparing the cirrhosis with the control group. After administration of vitamin-C, the excretion of uGA was significantly lower in the cirrhosis group. The measurement of uGA is considered to represent vitamin-C induced activation by P-450, and is a new method for evaluation of the functional reserve of the liver.
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Affiliation(s)
- H Hanaue
- Department of Surgery, Tokai University Oiso Hospital, Kanagawa, Japan
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42
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Miyauchi M, Endo R, Watanabe K, Kawahara Y, Iwata M, Kawamoto I. Studies on penem and carbapenem. I. Syntheses and oral absorption of ester-type prodrugs of sodium (5R,6S)-2-(2-fluoroethylthio)-6-[(1R)-1-hydroxyethyl]penem-3-c arboxylat e. Chem Pharm Bull (Tokyo) 1990; 38:1587-90. [PMID: 2208369 DOI: 10.1248/cpb.38.1587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Acyloxyalkyl esters (2a-d), alkyloxycarbonyloxyalkyl esters (2e-g) and (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl ester (2h) of (5R,6S)-2-(2-fluoroethylthio)-6-[(1R)-1-hydroxyethyl]penem-3- carboxylic acid (1) were synthesized. Enhanced oral absorption was observed in mice reflecting increased lipophilicity, compared with the parent 1 itself. Among them, the ester 2h showed a prolonged plasma level and a large area under the blood concentration-time curve (AUC) in rats. These ester-type prodrugs of penem 1 in phosphate buffer (pH 6.86) were much more stable than those of cephalosporins which easily degraded via isomerization to delta 2 cephalosporins.
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Affiliation(s)
- M Miyauchi
- Sankyo Research Laboratories, Sankyo Co., Ltd., Tokyo, Japan
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43
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Shibata M, Ueno Y, Ishii M, Yoshida N, Sadamoto T, Sumino Y, Iizuka S, Terauchi I, Nonaka H, Endo R. [The 8 years observation in a case of essential hyperbileacidemia]. Nihon Shokakibyo Gakkai Zasshi 1990; 87:126-30. [PMID: 2329727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- M Shibata
- Department of Internal Medicine, Kawasaki Central Hospital
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44
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Matsumura K, Wakatsuki S, Endo R, Tanaka K, Inoue T, Matsuda H. A rapid detection of circulating antigens of Dirofilaria immitis in dogs by a dot enzyme-linked immunosorbent assay. FEMS Microbiol Immunol 1988; 1:145-9. [PMID: 3273464 DOI: 10.1111/j.1574-6968.1988.tb02367.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This report describes a dot enzyme-linked immunosorbent assay (Dot-ELISA) for detecting circulating antigens in the sera of dogs infected with Dirofilaria immitis (D. immitis). Circulating D. immitis antigens could be detected in 24 of 25 infected dogs. The remaining animal had two immature worms. However, non-infected dogs and dogs infected with other parasites were all negative. Few cross-reactions to different parasite antigens were observed. The advantages of the Dot-ELISA include; 1) there is no need for pretreatment and dilution of sera and samples could be immediately bound to nitrocellulose paper set into microfiltration apparatus, 2) this assay could be carried out within 2 h at room temperature, 3) the resulting enzyme-reaction could be measured by both visual observation and densitometric reading.
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Affiliation(s)
- K Matsumura
- Yamaguchi Prefectural Research Institute of Health, Japan
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45
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Ishii M, Ueno Y, Sato G, Okada T, Sumino Y, Toyama M, Yamazaki T, Terauchi K, Endo R, Hatta Y. [Plasma amino acid in patients with alcoholic liver diseases--with special reference to the reduce of tyrosine]. Nihon Shokakibyo Gakkai Zasshi 1988; 85:1381-9. [PMID: 3184509] [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: 01/04/2023]
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46
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Matsumura K, Wakatsuki S, Iwasaki A, Endo R, Tanaka K. A rapid microassay for detecting hepatitis B surface antigen by dot enzyme immunoassay. FEMS Microbiol Immunol 1988; 1:81-5. [PMID: 3078738 DOI: 10.1111/j.1574-6968.1988.tb02495.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This study describes a dot enzyme immunoassay (Dot-EIA) for detecting hepatitis B surface antigen (HBsAg). The results demonstrated that the detection level of this assay for HBsAg was 1.5 ng/ml; no false-positive or -negative readings were observed. Also, this Dot-EIA had some advantages over standard EIA: (1) antiserum could be directly and immediately bound on nitrocellulose paper set into microfiltration apparatus, (2) the paper could be easily washed under reduced pressure using a water aspirator, (3) all assay steps could be performed at room temperature within 2 h, (4) the well-defined brown spots could be evaluated by both visual observation and densitometric reading. The Dot-EIA reported here may be useful for rapid diagnosis and screening of HBsAg in serum.
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Affiliation(s)
- K Matsumura
- Yamaguchi Prefectural Research Institute of Health, Japan
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47
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Matsumura K, Kazuta Y, Endo R, Tanaka K, Inoue T, Matsuda H. A rapid microassay for dirofilarial antibodies by using antigen-coated nitrocellulose paper. Vet Parasitol 1988; 27:337-44. [PMID: 3369081 DOI: 10.1016/0304-4017(88)90047-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This study describes an enzyme (horseradish peroxidase)-linked immunosorbent assay using nitrocellulose (NC) paper (Dot-ELISA) for the detection of antibodies against Dirofilaria immitis in dogs. Dirofilarial antigens prepared were directly bound on NC paper set into a microfiltration apparatus to ensure their uniformity. Of the 23 infected dogs tested, 21 were determined positive by visual observation of brown-colored spots on NC paper. The positive and negative readings were further confirmed by using a densitometer. Sera from 15 non-infected and 17 other parasite-infected dogs were all negative, i.e. no false positive readings and low cross-reactivities were found using this technique. Also, a large number of samples could be assayed simultaneously within 1.5 h. The Dot-ELISA technique reported here may be useful to veterinarians and also may be a means of field surveying human filariasis.
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Affiliation(s)
- K Matsumura
- Yamaguchi Prefectural Research Institute of Health, Japan
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48
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Koike S, Kawa S, Yabu K, Endo R, Sasaki Y, Furuta S, Ota M. Familial dilated cardiomyopathy and human leucocyte antigen. A report of two family cases. Jpn Heart J 1987; 28:941-5. [PMID: 3444043 DOI: 10.1536/ihj.28.941] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Two familial cases of dilated cardiomyopathy were evaluated by HL-A typing. In the case of the first family, the mode of inheritance is likely to be an autosomal dominant trait. Only the affected individuals carried the identical HL-A haplotype (A2, Bw54, Cw1, DR4, DQw3), while the unaffected members do not share this pattern. In the second family case, the disease is probably inherited by autosomal recessive traits. All of the family members examined shared the identical HL-A haplotype (A24, Bw52, DR2, DQw1), but only the affected individuals were homozygous for this haplotype.
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Affiliation(s)
- S Koike
- Second Department of Internal Medicine and Legal Medicine, Shinshu University School of Medicine, Matsumoto, Japan
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49
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Matsumura K, Kazuta Y, Endo R, Tanaka K, Inoue T, Matsuda H. A rapid detection of toxocaral antibodies by dot enzyme-linked immunosorbent assay (dot-ELISA) in dogs. Zentralbl Bakteriol Mikrobiol Hyg A 1987; 266:580-5. [PMID: 3439389 DOI: 10.1016/s0176-6724(87)80241-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This study describes an enzyme-linked immunosorbent assay using antigen-coated nitrocellulose (NC) paper (Dot-ELISA) for detecting antibodies against Toxocara canis infection in dogs. Some advantages could be achieved by using a Dot-ELISA; 1) antigen could be directly and immediately bound on NC paper, 2) this assay could be carried out within 1.5 h, 3) all assay steps could be performed at room temperature, 4) the well-defined blue spots formed on NC paper could be evaluated by both visual observation and densitometric reading. The Dot-ELISA reported here may prove to be useful for the diagnosis of canine toxocariasis.
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Affiliation(s)
- K Matsumura
- Yamaguchi Prefectural Research Institute of Health, Japan
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50
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Endo R. [Prevention of hospital infection: duties of hospital personnel in the preventive measures]. Kango Tenbo 1987; 12:988. [PMID: 3682915] [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: 01/06/2023]
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