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Morito S, Yasui H, Itoh T, Kamoshida S, Ohsaki H. Malignant mesothelioma cells with characteristic intracytoplasmic vacuolization and lipids. Diagn Cytopathol 2023; 51:E328-E331. [PMID: 37583304 DOI: 10.1002/dc.25213] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/17/2023]
Abstract
In this brief report, we described some uncommon cytomorphological features of malignant mesothelioma (MM) cells in pleural effusions. The tumor cells exhibited abundant cytoplasmic vacuolization, with presence of single or multiple eccentric nuclei in several cells. In the Giemsa-stained smear, we observed a glossy spherical material in some cells, which tested positive in Sudan III stain. In immunocytochemical analysis, tumor cells were positive for calretinin, podoplanin, epithelial membrane antigen, and methylthioadenosine phosphorylase; tumor cells were negative for BRCA1-associated protein 1, CD68, and desmin. The intracytoplasmic vacuoles were positive for adipophilin expression.
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Affiliation(s)
- Satoshi Morito
- Department of Diagnostic Pathology, Rakuwakai Otowa Hospital, Kyoto, Japan
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Hiroshi Yasui
- Department of Diagnostic Pathology, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Tomoo Itoh
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
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2
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Robinson ML, Hahn PG, Inouye BD, Underwood N, Whitehead SR, Abbott KC, Bruna EM, Cacho NI, Dyer LA, Abdala-Roberts L, Allen WJ, Andrade JF, Angulo DF, Anjos D, Anstett DN, Bagchi R, Bagchi S, Barbosa M, Barrett S, Baskett CA, Ben-Simchon E, Bloodworth KJ, Bronstein JL, Buckley YM, Burghardt KT, Bustos-Segura C, Calixto ES, Carvalho RL, Castagneyrol B, Chiuffo MC, Cinoğlu D, Cinto Mejía E, Cock MC, Cogni R, Cope OL, Cornelissen T, Cortez DR, Crowder DW, Dallstream C, Dáttilo W, Davis JK, Dimarco RD, Dole HE, Egbon IN, Eisenring M, Ejomah A, Elderd BD, Endara MJ, Eubanks MD, Everingham SE, Farah KN, Farias RP, Fernandes AP, Fernandes GW, Ferrante M, Finn A, Florjancic GA, Forister ML, Fox QN, Frago E, França FM, Getman-Pickering AS, Getman-Pickering Z, Gianoli E, Gooden B, Gossner MM, Greig KA, Gripenberg S, Groenteman R, Grof-Tisza P, Haack N, Hahn L, Haq SM, Helms AM, Hennecke J, Hermann SL, Holeski LM, Holm S, Hutchinson MC, Jackson EE, Kagiya S, Kalske A, Kalwajtys M, Karban R, Kariyat R, Keasar T, Kersch-Becker MF, Kharouba HM, Kim TN, Kimuyu DM, Kluse J, Koerner SE, Komatsu KJ, Krishnan S, Laihonen M, Lamelas-López L, LaScaleia MC, Lecomte N, Lehn CR, Li X, Lindroth RL, LoPresti EF, Losada M, Louthan AM, Luizzi VJ, Lynch SC, Lynn JS, Lyon NJ, Maia LF, Maia RA, Mannall TL, Martin BS, Massad TJ, McCall AC, McGurrin K, Merwin AC, Mijango-Ramos Z, Mills CH, Moles AT, Moore CM, Moreira X, Morrison CR, Moshobane MC, Muola A, Nakadai R, Nakajima K, Novais S, Ogbebor CO, Ohsaki H, Pan VS, Pardikes NA, Pareja M, Parthasarathy N, Pawar RR, Paynter Q, Pearse IS, Penczykowski RM, Pepi AA, Pereira CC, Phartyal SS, Piper FI, Poveda K, Pringle EG, Puy J, Quijano T, Quintero C, Rasmann S, Rosche C, Rosenheim LY, Rosenheim JA, Runyon JB, Sadeh A, Sakata Y, Salcido DM, Salgado-Luarte C, Santos BA, Sapir Y, Sasal Y, Sato Y, Sawant M, Schroeder H, Schumann I, Segoli M, Segre H, Shelef O, Shinohara N, Singh RP, Smith DS, Sobral M, Stotz GC, Tack AJM, Tayal M, Tooker JF, Torrico-Bazoberry D, Tougeron K, Trowbridge AM, Utsumi S, Uyi O, Vaca-Uribe JL, Valtonen A, van Dijk LJA, Vandvik V, Villellas J, Waller LP, Weber MG, Yamawo A, Yim S, Zarnetske PL, Zehr LN, Zhong Z, Wetzel WC. Plant size, latitude, and phylogeny explain within-population variability in herbivory. Science 2023; 382:679-683. [PMID: 37943897 DOI: 10.1126/science.adh8830] [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] [Received: 03/26/2023] [Accepted: 09/27/2023] [Indexed: 11/12/2023]
Abstract
Interactions between plants and herbivores are central in most ecosystems, but their strength is highly variable. The amount of variability within a system is thought to influence most aspects of plant-herbivore biology, from ecological stability to plant defense evolution. Our understanding of what influences variability, however, is limited by sparse data. We collected standardized surveys of herbivory for 503 plant species at 790 sites across 116° of latitude. With these data, we show that within-population variability in herbivory increases with latitude, decreases with plant size, and is phylogenetically structured. Differences in the magnitude of variability are thus central to how plant-herbivore biology varies across macroscale gradients. We argue that increased focus on interaction variability will advance understanding of patterns of life on Earth.
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Affiliation(s)
- M L Robinson
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Department of Biology, Utah State University, Logan, UT, USA
| | - P G Hahn
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - B D Inouye
- Department of Biological Science, Florida State University, Tallahassee, FL, USA
| | - N Underwood
- Department of Biological Science, Florida State University, Tallahassee, FL, USA
| | - S R Whitehead
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - K C Abbott
- Department of Biology, Case Western Reserve University, Cleveland, OH, USA
| | - E M Bruna
- Center for Latin American Studies, University of Florida, Gainesville, FL, USA
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA
| | - N I Cacho
- Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - L A Dyer
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - L Abdala-Roberts
- Departamento de Ecología Tropical, Universidad Autónoma de Yucatán, Mérida, Yucatán, México
| | - W J Allen
- Bio-Protection Research Centre, University of Canterbury, Christchurch, New Zealand
| | - J F Andrade
- Departamento de Sistemática e Ecologia Universidade Federal da Paraíba, João Pessoa, Brazil
| | - D F Angulo
- Centro de Investigación Científica de Yucatán, Departamento de Recursos Naturales, Mérida, Yucatán, México
| | - D Anjos
- Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - D N Anstett
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
| | - R Bagchi
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - S Bagchi
- Centre for Ecological Sciences, Indian Institute of Science, Bangalore, Karnataka, India
| | - M Barbosa
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - S Barrett
- Department of Biodiversity Conservation & Attractions Western Australia, Albany, Western Australia, Australia
| | - C A Baskett
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - E Ben-Simchon
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
- Robert H. Smith Faculty of Agriculture, Food, and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - K J Bloodworth
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
| | - J L Bronstein
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - Y M Buckley
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
| | - K T Burghardt
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - C Bustos-Segura
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - E S Calixto
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - R L Carvalho
- Institute of Advanced Studies, University of São Paulo, São Paulo, Brazil
| | | | - M C Chiuffo
- Grupo de Ecología de Invasiones, INIBIOMA, Universidad Nacional del Comahue, CONICET, San Carlos de Bariloche, Río Negro, Argentina
| | - D Cinoğlu
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - E Cinto Mejía
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - M C Cock
- Facultad de Ciencias Exactas y Naturales, Instituto de Ciencias de la Tierra y Ambientales de La Pampa, Santa Rosa, La Pampa, Argentina
| | - R Cogni
- Department of Ecology, University of São Paulo, São Paulo, Brazil
| | - O L Cope
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Department of Biology, Whitworth University, Spokane, WA, USA
| | - T Cornelissen
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - D R Cortez
- Department of Biology, California State University San Bernardino, San Bernardino, CA, USA
| | - D W Crowder
- Department of Entomology, Washington State University, Pullman, WA, USA
| | - C Dallstream
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - W Dáttilo
- Red de Ecoetología, Instituto de Ecología AC, Xalapa, Veracruz, Mexico
| | - J K Davis
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - R D Dimarco
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
- Grupo de Ecología de Poblaciones de Insectos, IFAB, San Carlos de Bariloche, Río Negro, Argentina
| | - H E Dole
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - I N Egbon
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
| | - M Eisenring
- Forest Entomology, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - A Ejomah
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
| | - B D Elderd
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - M-J Endara
- Grupo de Investigación en Ecología y Evolución en los Trópicos-EETROP, Universidad de las Américas, Quito, Ecuador
| | - M D Eubanks
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - S E Everingham
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - K N Farah
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - R P Farias
- Instituto de Biologia, Universidade Federal da Bahia, Salvador, Bahia, Brasil
| | - A P Fernandes
- Department of Botany, Ganpat Parsekar College of Education Harmal, Pernem, Goa, India
| | - G W Fernandes
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Knowledge Center for Biodiversity, Brazil
| | - M Ferrante
- Faculty of Agricultural Sciences and Environment, University of the Azores, Ponta Delgada, Portugal
- Department of Crop Sciences, University of Göttingen, Göttingen, Germany
| | - A Finn
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
| | - G A Florjancic
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - M L Forister
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - Q N Fox
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - E Frago
- CIRAD, UMR CBGP, INRAE, Institut Agro, IRD, Université Montpellier, Montpellier, France
| | - F M França
- School of Biological Sciences, University of Bristol, Bristol, UK
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Pará, Belém, Pará, Brasil
| | | | - Z Getman-Pickering
- Department of Mechanical and Industrial Engineering, University of Massachusetts Amherst, Amherst, MA, USA
| | - E Gianoli
- Departamento de Biología, Universidad de La Serena, La Serena, Chile
| | - B Gooden
- CSIRO Black Mountain Laboratories, CSIRO Health and Biosecurity, Canberra, Australia
| | - M M Gossner
- Forest Entomology, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
- Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
| | - K A Greig
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - S Gripenberg
- School of Biological Sciences, University of Reading, Reading, UK
| | - R Groenteman
- Manaaki Whenua - Landcare Research, Lincoln, New Zealand
| | - P Grof-Tisza
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - N Haack
- Independent Institute for Environmental Issues, Halle, Germany
| | - L Hahn
- Molecular Evolution and Systematics of Animals, University of Leipzig, Leipzig, Germany
| | - S M Haq
- Wildlife Crime Control Division, Wildlife Trust of India, Noida, Uttar Pradesh, India
| | - A M Helms
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - J Hennecke
- Systematic Botany and Functional Biodiversity, Leipzig University, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
| | - S L Hermann
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - L M Holeski
- Department of Biological Sciences and Center for Adaptive Western Landscapes, Northern Arizona University, Flagstaff, AZ, USA
| | - S Holm
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
- Department of Zoology, University of Tartu, Tartu, Estonia
| | - M C Hutchinson
- Department of Life and Environmental Sciences, University of California, Merced, Merced, CA, USA
| | - E E Jackson
- School of Biological Sciences, University of Reading, Reading, UK
| | - S Kagiya
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido, Japan
| | - A Kalske
- Department of Biology, University of Turku, Turku, Finland
| | - M Kalwajtys
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - R Karban
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - R Kariyat
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
| | - T Keasar
- Department of Biology and the Environment, University of Haifa - Oranim, Oranim, Tivon, Israel
| | - M F Kersch-Becker
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - H M Kharouba
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - T N Kim
- Department of Entomology, Kansas State University, Manhattan, KS, USA
| | - D M Kimuyu
- Department of Natural Resources, Karatina University, Karatina, Kenya
| | - J Kluse
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - S E Koerner
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
| | - K J Komatsu
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
- Smithsonian Environmental Research Center, Edgewater, MD, USA
| | - S Krishnan
- Center for Sustainable Future, Amrita University and EIACP RP, Amrita Viswa Vidyapeetham, Coimbatore, India
| | - M Laihonen
- Biodiversity Unit, University of Turku, Turku, Finland
| | - L Lamelas-López
- Faculty of Agricultural Sciences and Environment, University of the Azores, Ponta Delgada, Portugal
| | - M C LaScaleia
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - N Lecomte
- Canada Research Chair in Polar and Boreal Ecology, Department of Biology and Centre d'Études Nordiques, Université de Moncton, Moncton, Canada
| | - C R Lehn
- Biological Sciences Course, Instituto Federal Farroupilha, Panambi, RS, Brazil
| | - X Li
- College of Resources and Environmental sciences, Jilin Agricultural University, Changchun, China
| | - R L Lindroth
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - E F LoPresti
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA
| | - M Losada
- Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - A M Louthan
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - V J Luizzi
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - S C Lynch
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - J S Lynn
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- Department of Earth and Environmental Sciences, University of Manchester, Manchester, UK
| | - N J Lyon
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - L F Maia
- Bio-Protection Research Centre, University of Canterbury, Christchurch, New Zealand
- School of Biological Sciences, University of Bristol, Bristol, UK
| | - R A Maia
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - T L Mannall
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - B S Martin
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
| | - T J Massad
- Department of Scientific Services, Gorongosa National Park, Sofala, Mozambique
| | - A C McCall
- Biology Department, Denison University, Granville, OH, USA
| | - K McGurrin
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - A C Merwin
- Department of Biology and Geology, Baldwin Wallace University, Berea, OH, USA
| | - Z Mijango-Ramos
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - C H Mills
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - A T Moles
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - C M Moore
- Department of Biology, Colby College, Waterville, ME, USA
| | - X Moreira
- Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas, Pontevedra, Galicia, Spain
| | - C R Morrison
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - M C Moshobane
- South African National Biodiversity Institute, Pretoria National Botanical Garden, Brummeria, Silverton, South Africa
- Centre for Functional Biodiversity, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - A Muola
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Tromsø, Norway
| | - R Nakadai
- Faculty of Environment and Information Sciences, Yokohama National University, Yokohama, Kanagawa, Japan
| | - K Nakajima
- Insitute of Science and Engineering, Chuo University, Tokyo, Japan
- Institute of Cave Research, Shimohei-guun, Iwate Prefecture, Japan
| | - S Novais
- Red de Interacciones Multitróficas, Instituto de Ecología A.C., Xalapa, Veracruz, Mexico
| | - C O Ogbebor
- Nigerian Institute for Oil Palm Research, Benin City, Edo State, Nigeria
| | - H Ohsaki
- Department of Biological Sciences, Hirosaki University, Hirosaki, Aomori, Japan
| | - V S Pan
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
| | - N A Pardikes
- Department of Biology, Utah State University, Logan, UT, USA
| | - M Pareja
- Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, Brazil
| | - N Parthasarathy
- Department of Ecology and Evironmental Sciences, Pondicherry University, Puducherry, India
| | | | - Q Paynter
- Manaaki Whenua - Landcare Research, Auckland, New Zealand
| | - I S Pearse
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO, USA
| | - R M Penczykowski
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - A A Pepi
- Department of Biology, Tufts University, Medford, MA, USA
| | - C C Pereira
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - S S Phartyal
- School of Ecology & Environment Studies, Nalanda University, Rajgir, India
| | - F I Piper
- Millennium Nucleus of Patagonian Limit of Life and Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
- Institute of Ecology and Biodiversity, Ñuñoa, Santiago
| | - K Poveda
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - E G Pringle
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - J Puy
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
- Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas, Sevilla, Spain
| | - T Quijano
- Departamento de Ecología Tropical, Universidad Autónoma de Yucatán, Mérida, Yucatán, México
| | - C Quintero
- INIBIOMA, CONICET - Universidad Nacional del Comahue, San Carlos de Bariloche, Río Negro, Argentina
| | - S Rasmann
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - C Rosche
- German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
- Institute of Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - L Y Rosenheim
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - J A Rosenheim
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - J B Runyon
- Rocky Mountain Research Station, USDA Forest Service, Bozeman, MT, USA
| | - A Sadeh
- Department of Natural Resources, Newe Ya'ar Research Center, Volcani Institute, Ramat Yishay, Israel
| | - Y Sakata
- Department of Biological Environment, Akita Prefectural University, Shimoshinjyo-Nakano, Akita, Japan
| | - D M Salcido
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - C Salgado-Luarte
- Instituto de Investigación Multidisciplinario en Ciencia y Tecnología, Universidad de La Serena, La Serena, Chile
| | - B A Santos
- Departamento de Sistemática e Ecologia Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Y Sapir
- The Botanic Garden, School of Plant Sciences and Food Security, Faculty of Life Science, Tel Aviv University, Tel Aviv, Israel
| | - Y Sasal
- INIBIOMA, CONICET - Universidad Nacional del Comahue, San Carlos de Bariloche, Río Negro, Argentina
| | - Y Sato
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - M Sawant
- Department of Ecology, University of Pune, Maharashtra, India
| | - H Schroeder
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - I Schumann
- Department of Human Genetics, University of Leipzig, Leipzig, Germany
| | - M Segoli
- Mitrani Department of Desert Ecology, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
| | - H Segre
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
- Robert H. Smith Faculty of Agriculture, Food, and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
- Department of Natural Resources, Newe Ya'ar Research Center, Volcani Institute, Ramat Yishay, Israel
| | - O Shelef
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
| | - N Shinohara
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - R P Singh
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - D S Smith
- Department of Biology, California State University San Bernardino, San Bernardino, CA, USA
| | - M Sobral
- Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - G C Stotz
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - A J M Tack
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - M Tayal
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - J F Tooker
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - D Torrico-Bazoberry
- Laboratorio de Comportamiento Animal y Humano, Centro de Investigación en Complejidad Social, Universidad del Desarrollo, Las Condes, Chile
| | - K Tougeron
- Écologie et Dynamique des Systèmes Anthropisés, Université de Picardie Jules Verne, UMR 7058 CNRS, Amiens, France
- Ecology of Interactions and Global Change, Institut de Recherche en Biosciences, Université de Mons, Mons, Belgium
| | - A M Trowbridge
- Department of Forest and Wildlife Ecology, University of Wisconsin, Madison, WI, USA
| | - S Utsumi
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido, Japan
| | - O Uyi
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
- Department of Entomology, University of Georgia, Tifton, GA, USA
| | - J L Vaca-Uribe
- Programa de ingeniría agroecológica, Corporación Universitaria Minuto de Dios, Bogotá, Colombia
| | - A Valtonen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
| | - L J A van Dijk
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden
| | - V Vandvik
- Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - J Villellas
- Department of Life Sciences, University of Alcalá, Madrid, Spain
| | - L P Waller
- Bioprotection Aotearoa, Lincoln University, Lincoln, New Zealand
| | - M G Weber
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - A Yamawo
- Department of Biological Sciences, Hirosaki University, Hirosaki, Aomori, Japan
- Center for Ecological Research, Kyoto University, Otsu, Japan
| | - S Yim
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - P L Zarnetske
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
| | - L N Zehr
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Z Zhong
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education/Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, Jilin Province, China
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Beijing, China
| | - W C Wetzel
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
- W.K. Kellogg Biological Station, Michigan State University, Hickory Corners, MI, USA
- Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, USA
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Suzuki K, Ogawa D, Kanda T, Fujimori T, Shibayama Y, Rahman A, Ye J, Ohsaki H, Akimitsu K, Izumori K, Tamiya T, Nishiyama A, Miyake K. Antiproliferative effects of D-allose associated with reduced cell division frequency in glioblastoma. Sci Rep 2023; 13:19515. [PMID: 37945736 PMCID: PMC10636159 DOI: 10.1038/s41598-023-46796-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/05/2023] [Indexed: 11/12/2023] Open
Abstract
Recent studies have shown that D-allose, a rare sugar, elicits antitumor effects on different types of solid cancers, such as hepatocellular carcinoma, non-small-cell lung cancer, and squamous cell carcinoma of the head and neck. In this study, we examined the effects of D-allose on the proliferation of human glioblastoma (GBM) cell lines (i.e., U251MG and U87MG) in vitro and in vivo and the underlying mechanisms. D-allose treatment inhibited the proliferation of U251MG and U87MG cells in a dose-dependent manner (3-50 mM). However, D-allose treatment did not affect cell cycles or apoptosis in these cells but significantly decreased the cell division frequency in both GBM cell lines. In a subcutaneous U87MG cell xenograft model, intraperitoneal injection of D-allose (100 mg/kg/day) significantly reduced the tumor volume in 28 days. These data indicate that D-allose-induced reduction in cell proliferation is associated with a subsequent decrease in the number of cell divisions, independent of cell-cycle arrest and apoptosis. Thus, D-allose could be an attractive additive to therapeutic strategies for GBM.
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Affiliation(s)
- Kenta Suzuki
- Department of Neurological Surgery, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Daisuke Ogawa
- Department of Neurological Surgery, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Takahiro Kanda
- Department of Neurological Surgery, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Takeshi Fujimori
- Department of Neurological Surgery, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Yuki Shibayama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Asadur Rahman
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Juanjuan Ye
- Molecular Oncologic Pathology, Department of Pathology and Host-Defense, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Science, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Kazuya Akimitsu
- International Institute of Rare Sugar Research and Education, Kagawa University, 2393 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0795, Japan
| | - Ken Izumori
- International Institute of Rare Sugar Research and Education, Kagawa University, 2393 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0795, Japan
| | - Takashi Tamiya
- Department of Neurological Surgery, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Keisuke Miyake
- Department of Neurological Surgery, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
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Irino S, Ose H, Takata N, Kamoshida S, Ohsaki H. Barriers to undergoing cervical cancer screening among health sciences university students in Japan: A cross-sectional study. Nurs Health Sci 2023; 25:466-473. [PMID: 37581364 DOI: 10.1111/nhs.13043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/15/2023] [Accepted: 07/23/2023] [Indexed: 08/16/2023]
Abstract
In most developed countries, cervical cancer screening and human papillomavirus vaccination have reduced cervical cancer incidence. However, the incidence has been increasing in Japan, possibly because of the low screening rate. Although cervical cancer incidence has increased in people in their 20s, the screening rate among 20-24-year-olds in Japan is only 10.2%, meaning that cervical cancer screening rates should be increased among young Japanese women. We conducted a questionnaire survey among students at health sciences universities to determine their knowledge of cervical cancer, screening rates, and barriers to screening. Students taking specialized medical courses were highly knowledgeable; recognition of the facts that "cervical cancer can be prevented through screening" and that "the risk of cervical cancer increases in one's 20s" was significantly high among those who underwent screening. On the other hand, only 7.5% of students used the free coupons provided for screening. Knowledge of cervical cancer improves screening rates. Therefore, educational programs to raise awareness of the importance of cervical cancer screening among non-medical and health sciences university students and young women in general are required.
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Affiliation(s)
- Satoshi Irino
- Department of Nursing, Ehime Prefectural University of Health Sciences, Tobe-cho, Japan
| | - Hiroko Ose
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Naoki Takata
- Department of Clinical Laboratory, Kakogawa General Health Care Center, Kakogawa, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
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5
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Sakumo K, Morihashi K, Nakamura A, Nukaya T, Sumitomo M, Nakamura M, Sofue T, Haba R, Itoh T, Kamoshida S, Ohsaki H. The usefulness of nuclear area in the diagnosis of high-grade urothelial carcinoma cells in voided urine cytology. Cytopathology 2023; 34:295-301. [PMID: 36959684 DOI: 10.1111/cyt.13229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/31/2023] [Accepted: 02/16/2023] [Indexed: 03/25/2023]
Abstract
OBJECTIVE The Paris System for Reporting Urinary Cytology considered the nuclear-to-cytoplasmic (N:C) ratio as the most important cytomorphological feature for detecting high-grade urothelial carcinoma (HGUC) cells. Few quantitative studies have been conducted on other features although quantitative studies on the N:C ratio have been reported. Therefore, this study quantitatively analysed important cytomorphological features in distinguishing benign reactive cells from HGUC cells. METHODS We analysed 2866 cells from the urine of 52 patients. A digital image analyser was used to quantitatively measure the nuclear area, cell area, N:C ratio, and nuclear roundness for HGUC cells and benign reactive cells. Additionally, the diagnostic value of quantitative cytomorphological criteria in HGUC cells was evaluated by the receiver operating characteristic curve. RESULTS The area under the curve for the prediction of HGUC cells for all cells and the top five cells was in the following order: nuclear area (0.920 and 0.992, respectively), N:C ratio (0.849 and 0.977), cell area (0.781 and 0.920), and nuclear roundness (0.624 and 0.605). The best cutoff value of the N:C ratio to differentiate HGUC cells from benign reactive cells was 0.438, and using the N:C ratio of 0.702, the positive predictive value obtained was 100%. CONCLUSIONS Our study indicated that nuclear area is a more important cytomorphological criterion than the N:C ratio for HGUC cell detection. Moreover, extracted data of the top five cells were more valuable than the data of all cells, which can be helpful in the routine practice and future criteria definition in urine cytology.
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Affiliation(s)
- Kazuma Sakumo
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Kenta Morihashi
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Akihiro Nakamura
- Department of Clinical Laboratory Science, Faculty of Health Care, Tenri Health Care University, Tenri, Japan
| | - Takuhisa Nukaya
- Department of Urology, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Makoto Sumitomo
- Department of Urology, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Muneo Nakamura
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Tadashi Sofue
- Department of Cardiorenal and Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, Kita-gun, Kagawa, Japan
| | - Reiji Haba
- Department of Diagnostic Pathology, Kagawa University Hospital, Kita-gun, Kagawa, Japan
| | - Tomoo Itoh
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
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Jahan N, Ohsaki H, Kaneko K, Rahman A, Nishiyama T, Koizumi M, Yamanaka S, Kitada K, Sugiura Y, Matsui K, Yokoo T, Hamano T, Kuro-O M, Itou T, Suzuki M, Ueda K, Nishiyama A. Possible contribution of phosphate to the pathogenesis of chronic kidney disease in dolphins. Sci Rep 2023; 13:5161. [PMID: 36991108 PMCID: PMC10060237 DOI: 10.1038/s41598-023-32399-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 03/27/2023] [Indexed: 03/31/2023] Open
Abstract
This study aimed to investigate whether phosphate contributes to the pathogenesis of chronic kidney disease (CKD) in dolphins. Renal necropsy tissue of an aged captive dolphin was analyzed and in vitro experiments using cultured immortalized dolphin proximal tubular (DolKT-1) cells were performed. An older dolphin in captivity died of myocarditis, but its renal function was within the normal range until shortly before death. In renal necropsy tissue, obvious glomerular and tubulointerstitial changes were not observed except for renal infarction resulting from myocarditis. However, a computed tomography scan showed medullary calcification in reniculi. Micro area X-ray diffractometry and infrared absorption spectrometry showed that the calcified areas were primarily composed of hydroxyapatite. In vitro experiments showed that treatment with both phosphate and calciprotein particles (CPPs) resulted in cell viability loss and lactate dehydrogenase release in DolKT-1 cells. However, treatment with magnesium markedly attenuated this cellular injury induced by phosphate, but not by CPPs. Magnesium dose-dependently decreased CPP formation. These data support the hypothesis that continuous exposure to high phosphate contributes to the progression of CKD in captive-aged dolphins. Our data also suggest that phosphate-induced renal injury is mediated by CPP formation in dolphins, and it is attenuated by magnesium administration.
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Affiliation(s)
- Nourin Jahan
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Science, Kobe, Japan
| | - Kiyoko Kaneko
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, Tokyo, Japan
| | - Asadur Rahman
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | | | - Makoto Koizumi
- Laboratory Animal Facility, Research Center for Medical Sciences, Jikei University School of Medicine, Tokyo, Japan
| | - Shuichiro Yamanaka
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kento Kitada
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Yuki Sugiura
- Multiomics Platform, Center for Cancer Immunotherapy and Immunobiology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kenji Matsui
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takayuki Hamano
- Department of Nephrology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Makoto Kuro-O
- Division of Anti-Aging Medicine, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
| | - Takuya Itou
- Nihon University Veterinary Research Center, Nihon University, Fujisawa, Japan
| | - Miwa Suzuki
- Department of Marine Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Keiichi Ueda
- Okinawa Churashima Foundation, Kunigami-gun, Japan
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
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7
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Maekawa K, Kotera S, Ohsaki H. Competency for Japanese novice medical laboratory scientists: a Delphi method. BMC Med Educ 2022; 22:875. [PMID: 36527049 PMCID: PMC9756718 DOI: 10.1186/s12909-022-03878-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 11/09/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Competency is used to channel abilities into successful processes and is employed in the medical field. Globally, several laboratory competencies exist, but the job descriptions of Japanese medical laboratory scientists differ from those of other countries and little evidence-based information on novice medical laboratory scientist competency is available in Japan. This study clarified the competencies of novice medical laboratory scientists based on various expert opinions in Japan. METHODS The Delphi method was used to achieve an expert consensus on novice medical laboratory scientist competencies. We asked the participants to evaluate the importance of each item using the Likert scale and set 70% as the final consensus rate. RESULTS We obtained 106/400 (26.5%) and 95/106 (89.6%) responses from participants in rounds 1 and 2, respectively. Their professional experience mean ± standard deviation was 32.4 ± 6.0 years (range: 13-41). The average of each category consensus rate was > 99.1%. Ninety-five expert opinions converged and agreed that the competency comprised 8 categories and 54 items. CONCLUSIONS The survey results revealed that novice medical laboratory scientists were expected to have relatively higher main laboratory skill competencies in the 'Preparation and analysis' category than in other categories. Nevertheless, competencies in other categories required basic skills. In addition, our competencies contained unique competencies compared with others due to their divergent roles and their environment. Further research is warranted to explore assessment tools by developing a competency scale, thereby helping clarify the differences between ability and correlated factors. The unique competencies scale can help assess the efficacy of educational programmes for Japanese medical laboratory scientists.
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Affiliation(s)
- Kiriko Maekawa
- Department of Medical Science, Divisin of Medical Education, Graduate School of Medicine, Kobe University, 7-5-1 Kusunokicho, Chuo, Kobe, Hyogo, 650-0017, Japan.
| | - Sayaka Kotera
- Department of Medical Biophysics, Graduate School of Health Sciences, Kobe University, 7-10-2 Tomogaoka, Suma, Kobe, Hyogo, 654-0142, Japan
| | - Hiroyuki Ohsaki
- Department of Public Health, Graduate School of Health Sciences, Kobe University, 7-10-2 Tomogaoka, Suma, Kobe, Hyogo, 654-0142, Japan
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Hattori M, Rahman A, Kidoguchi S, Jahan N, Fujisawa Y, Morisawa N, Ohsaki H, Kobara H, Masaki T, Hossain A, Steeve A, Nishiyama A. Association of Antihypertensive Effects of Esaxerenone with the Internal Sodium Balance in Dahl Salt-Sensitive Hypertensive Rats. Int J Mol Sci 2022; 23:ijms23168915. [PMID: 36012182 PMCID: PMC9408866 DOI: 10.3390/ijms23168915] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/18/2022] Open
Abstract
Background: The nonsteroidal mineralocorticoid receptor blocker esaxerenone is effective in reducing blood pressure (BP). Objective: In this study, we investigated esaxerenone-driven sodium homeostasis and its association with changes in BP in Dahl salt-sensitive (DSS) hypertensive rats. Methods: In the different experimental setups, we evaluated BP by a radiotelemetry system, and sodium homeostasis was determined by an approach of sodium intake (food intake) and excretion (urinary excretion) in DSS rats with a low-salt diet (0.3% NaCl), high-salt diet (HSD, 8% NaCl), HSD plus 0.001% esaxerenone (w/w), and HSD plus 0.05% furosemide. Results: HSD-fed DSS rats showed a dramatic increase in BP with a non-dipper pattern, while esaxerenone treatment, but not furosemide, significantly reduced BP with a dipper pattern. The cumulative sodium excretion in the active period was significantly elevated in esaxerenone- and furosemide-treated rats compared with their HSD-fed counterparts. Sodium content in the skin, skinned carcass, and total body tended to be lower in esaxerenone-treated rats than in their HSD-fed counterparts, while these values were unchanged in furosemide-treated rats. Consistently, sodium balance tended to be reduced in esaxerenone-treated rats during the active period. Histological evaluation showed that esaxerenone, but not furosemide, treatment attenuated glomerulosclerosis, tubulointerstitial fibrosis, and urinary protein excretion induced by high salt loading. Conclusions: Collectively, these findings suggest that an esaxerenone treatment-induced reduction in BP and renoprotection are associated with body sodium homeostasis in salt-loaded DSS rats.
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Affiliation(s)
- Mai Hattori
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Asadur Rahman
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
- Correspondence: (A.R.); (A.N.); Tel.: +81-87-891-2125 (A.R. & A.N.); Fax: +81-87-891-2126 (A.R. & A.N.)
| | - Satoshi Kidoguchi
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Nourin Jahan
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Yoshihide Fujisawa
- Life Science Research Center, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Norihiko Morisawa
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2, Tomogaoka, Suma-ku, Kobe 654-0142, Hyogo, Japan
| | - Hideki Kobara
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Tsutomu Masaki
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Akram Hossain
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Akumwami Steeve
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
- Department of Anesthesiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
- Correspondence: (A.R.); (A.N.); Tel.: +81-87-891-2125 (A.R. & A.N.); Fax: +81-87-891-2126 (A.R. & A.N.)
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9
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Izutsu M, Domoto T, Kamoshida S, Ohsaki H, Matsuoka H, Umeki Y, Shiogama K, Hirayama M, Suda K, Uyama I. Expression status of p53 and organic cation transporter 1 is correlated with poor response to preoperative chemotherapy in esophageal squamous cell carcinoma. World J Surg Oncol 2022; 20:105. [PMID: 35365176 PMCID: PMC8976339 DOI: 10.1186/s12957-022-02571-9] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 03/21/2022] [Indexed: 12/24/2022] Open
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is a highly malignant neoplasm. DNA-damaging drugs, such as cisplatin (CDDP) and 5-fluorouracil (5-FU), are most frequently used in preoperative chemotherapy for ESCC. However, the response to preoperative chemotherapy varies among patients. p53, encoded by TP53, participates in apoptotic pathways following chemotherapy with DNA-damaging drugs, and mutation of TP53 contributes to chemoresistance. Organic cation transporter 1 (OCT1) participates in the uptake of CDDP, and its reduced expression is associated with CDDP resistance. The aim of this study was to evaluate the predictive impact of the expression status of p53 and OCT1 in response to preoperative chemotherapy in ESCC. Methods We retrospectively assessed 66 ESCC patients who received preoperative chemotherapy with CDDP/5-FU (CF) or docetaxel/CDDP/5-FU (DCF). p53 and OCT1 expression in pretreatment biopsy specimens was immunohistochemically determined and correlated with histological response to preoperative chemotherapy. Results p53 with wild-type (p53WT-ex) and mutant-type (p53MT-ex) expression patterns was identified in 40.9% and 59.1% of patients, respectively. High expression of OCT1 (OCT1High) was detected in 45.5%, and the remaining 54.5% showed low expression (OCT1Low). In a univariate analysis of the entire cohort, p53MT-ex was significantly correlated with poor response (P = 0.026), whereas OCT1Low showed marginal significance (P = 0.091). In a combined analysis, tumors with either p53MT-ex or OCT1Low showed a significant correlation with poor response compared with tumors with both p53WT-ex and OCT1High (P < 0.001). The sensitivity, specificity, and accuracy of combined p53/OCT1 were 93.9%, 47.1%, and 81.8%, respectively. Multivariate analysis identified p53 (P = 0.017), OCT1 (P = 0.032), and combined p53/OCT1 (P < 0.001) as independent predictors of histological response. When samples were stratified according to chemotherapy regimen in the univariate analysis, combined p53/OCT1 was the only significant factor for poor response in the CF (P = 0.011) and DCF (P = 0.021) groups, whereas p53 showed no statistical significance. Conclusions Our results suggest that either p53MT-ex or OCT1Low expression in pretreatment biopsy specimens may be a potential predictor of poor response to preoperative chemotherapy with the CF-based regimens in ESCC, although the specificity needs to be improved.
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Affiliation(s)
- Masahiro Izutsu
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan
| | - Takanori Domoto
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan
| | - Shingo Kamoshida
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan.
| | - Hiroyuki Ohsaki
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, Hyogo, 654-0142, Japan
| | - Hiroshi Matsuoka
- Department of Surgery, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Yusuke Umeki
- Department of Surgery, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Kazuya Shiogama
- Department of Morphology and Cell Function, Fujita Health University School of Health Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Masaya Hirayama
- Department of Morphology and Cell Function, Fujita Health University School of Health Sciences, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Koichi Suda
- Department of Surgery, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Ichiro Uyama
- Department of Surgery, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
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10
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Sakane J, Kitayama H, Inoue T, Nakamura A, Yamada M, Miyama Y, Kawamura H, Iwafuchi H, Kamoshida S, Ohsaki H. Urinary Podocyte Count as a Potential Routine Laboratory Test for Glomerular Disease: A Novel Method Using Liquid-Based Cytology and Immunoenzyme Staining. Acta Cytol 2022; 66:434-440. [PMID: 35350010 PMCID: PMC9501740 DOI: 10.1159/000521675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/15/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION This study investigated whether our urinary podocyte detection method using podocalyxin (PDX) and Wilms tumor 1 (WT1) immunoenzyme staining combined with liquid-based cytology can serve as a noninvasive routine laboratory test for glomerular disease. METHODS The presence of PDX- and WT1-positive cells was investigated in 79 patients with glomerular disease and 51 patients with nonglomerular disease. RESULTS The frequencies and numbers of PDX- and WT1-positive cells were significantly higher in the glomerular disease group than in the nonglomerular disease group. The best cutoffs for PDX- and WT1-positive cell counts for identifying patients with glomerular disease were 3.5 (sensitivity = 67.1% and specificity = 100%) and 1.2 cells/10 mL (sensitivity = 43.0% and specificity = 100%), respectively. CONCLUSION Because our urinary podocyte detection method using PDX immunoenzyme staining can be standardized and it detected glomerular disease with high accuracy, it can likely serve as a noninvasive routine laboratory test for various glomerular diseases.
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Affiliation(s)
- Junichi Sakane
- Department of Clinical Laboratory, Shizuoka Children's Hospital, Shizuoka, Japan
| | | | - Takashi Inoue
- Department of Clinical Laboratory, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Akihiro Nakamura
- Department of Clinical Laboratory Science, Faculty of Health Care, Tenri Health Care University, Tenri, Japan
| | - Masayoshi Yamada
- Department of Nephrology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Yudai Miyama
- Department of Nephrology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Hideki Kawamura
- Department of Nephrology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Hideto Iwafuchi
- Department of Pathology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
- *Hiroyuki Ohsaki,
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11
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Morinishi T, Tokuhara Y, Kajihara K, Kawakami S, Tanaka S, Ohsaki H, Matsunaga T, Ibuki E, Hirakawa E. Peroxisome proliferator-activated receptor-α expression is associated with histological type in human gastric carcinoma. Mol Clin Oncol 2022; 16:51. [PMID: 35070300 PMCID: PMC8764659 DOI: 10.3892/mco.2021.2484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 10/14/2021] [Indexed: 11/28/2022] Open
Abstract
Gastric carcinoma is one of the most common types of cancer worldwide and a leading cause of cancer-related mortality. Gastric carcinoma is histologically subdivided into differentiated and undifferentiated carcinoma, with the latter including poorly differentiated carcinoma and signet ring cell carcinoma (SRCC). Poorly differentiated carcinoma and SRCC have a worse prognosis compared with differentiated carcinoma. Peroxisome proliferator-activated receptors (PPARs) are nuclear hormone receptors and the PPAR-α subtype regulates important cellular functions, including cell proliferation, energy metabolism, oxidative stress, immune responses and cell differentiation. The aim of the present study was to elucidate the associations between clinicopathological factors and PPAR-α expression in patients with gastric carcinoma. The immunohistochemical staining of specimens obtained from 57 patients showed that PPAR-α expression was slightly weaker in undifferentiated carcinoma than in differentiated carcinoma (P<0.01). PPAR-α expression also significantly differed between poorly differentiated carcinoma (both positive and negative: 14/20, 70%) and SRCC (not expressed: 0/7, 0%) (P<0.01). However, PPAR-α expression was not significantly affected by age, lymph node invasion, venous invasion, lymph node metastasis, depth of invasion or stage. Collectively, the present results demonstrated that the downregulated expression of PPAR-α may play a key role in the biological transformation of tumors. Therefore, PPAR-α appears to be an important protein related to histology and may hold promise as a prognostic marker. Further studies with a larger number of subjects are needed to elucidate the relationship between PPAR-α expression and tumor progression and to analyze long-term clinical survival.
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Affiliation(s)
- Tatsuya Morinishi
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
| | - Yasunori Tokuhara
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
| | - Kazuki Kajihara
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
| | - Shunsei Kawakami
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
| | - Shinichi Tanaka
- Department of Medical Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, Kurashiki, Okayama 701-0193, Japan
| | - Hiroyuki Ohsaki
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Hyogo 654-0142, Japan
| | - Toru Matsunaga
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Miki, Kagawa 761-0793, Japan
| | - Emi Ibuki
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Miki, Kagawa 761-0793, Japan
| | - Eiichiro Hirakawa
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
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12
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Tanaka S, Tokuhara Y, Hosokawa S, Ohsaki H, Morinishi T, Yamamoto T, Teramoto N, Hirakawa E. Overexpression of the PPAR-γ protein in primary Ta/T1 non-muscle-invasive urothelial carcinoma. Mol Clin Oncol 2022; 16:36. [PMID: 34984103 PMCID: PMC8719252 DOI: 10.3892/mco.2021.2469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 10/18/2021] [Indexed: 11/05/2022] Open
Abstract
Peroxisome proliferator-activated receptor-γ (PPAR-γ) is a well-known nuclear receptor that is activated in the nucleus to regulate several transcription factors. Its expression patterns have been examined in various types of cancer. The present study investigated the expression patterns of PPAR-γ in non-muscle-invasive urothelial carcinoma. The expression rates of PPAR-γ, p53 and Ki-67 were compared to determine whether PPAR-γ may be considered as an immunobiomarker for bladder cancer. The intensity and extent of PPAR-γ expression were evaluated in 79 cases of non-muscle-invasive urothelial carcinoma (30 cases of papillary carcinoma low-grade, 30 cases of high-grade and 19 cases of carcinoma in situ) and 30 non-malignant cases. The nuclear overexpression of PPAR-γ was frequently observed in non-muscle-invasive urothelial carcinoma (63/79 cases) but was rarely detected in non-malignant cases (2/30 cases). The histological proliferation types of non-muscle-invasive urothelial carcinoma revealed that PPAR-γ was more frequently overexpressed in papillary carcinoma (54/60 cases) than in carcinoma in situ (9/19 cases). Immunohistochemical staining demonstrated that PPAR-γ was more useful as an immunobiomarker than p53 or Ki-67 (diagnostic odds ratios; 55.13, 16.82 and 11.13, respectively). In summary, this study demonstrated that the expression patterns of PPAR-γ were associated with histological proliferation type and that PPAR-γ was expressed in the nuclei of papillary carcinoma cells. These findings suggested that immunohistochemical staining for PPAR-γ may be used to comprehensively detect non-muscle-invasive urothelial carcinoma.
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Affiliation(s)
- Shinichi Tanaka
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
- Department of Medical Technology, Kawasaki University of Medical Welfare, Kurashiki, Okayama 701-0193, Japan
| | - Yasunori Tokuhara
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
| | - Sho Hosokawa
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Iyo, Ehime 791-2101, Japan
| | - Hiroyuki Ohsaki
- Laboratory of Pathology, Department of Medical Technology, Kobe University Graduate School of Health Sciences, Kobe, Hyogo 654-0142, Japan
| | - Tatsuya Morinishi
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
| | - Tamami Yamamoto
- Department of Clinical Laboratory, Shikoku Cancer Center, Matsuyama, Ehime 791-0280, Japan
| | - Norihiro Teramoto
- Department of Clinical Laboratory, Shikoku Cancer Center, Matsuyama, Ehime 791-0280, Japan
| | - Eiichiro Hirakawa
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
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Kidoguchi S, Kitada K, Nakajima K, Nakano D, Ohsaki H, Kittikulsuth W, Kobara H, Masaki T, Yokoo T, Takahashi K, Titze J, Nishiyama A. Hepatocellular carcinoma induces body mass loss in parallel with osmolyte and water retention in rats. Life Sci 2022; 289:120192. [PMID: 34871664 DOI: 10.1016/j.lfs.2021.120192] [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: 10/05/2021] [Revised: 11/22/2021] [Accepted: 11/26/2021] [Indexed: 02/07/2023]
Abstract
AIMS The number of cancer survivors with cardiovascular disease is increasing. However, the effect of cancer on body fluid regulation remains to be clarified. In this study, we evaluated body osmolyte and water imbalance in rats with hepatocellular carcinoma. MAIN METHODS Wistar rats were administered diethylnitrosamine, a carcinogenic drug, to establish liver cancer. We analyzed tissue osmolyte and water content, and their associations with aldosterone secretion. KEY FINDINGS Hepatocellular carcinoma rats had significantly reduced body mass and the amount of total body sodium, potassium, and water. However, these rats had significantly increased relative tissue sodium, potassium, and water content per tissue dry weight. Furthermore, these changes in sodium and water balance in hepatocellular carcinoma rats were significantly associated with increased 24-h urinary aldosterone excretion. Supplementation with 0.25% salt in drinking water improved body weight reduction associated with sodium and water retention in hepatocellular carcinoma rats, which was suppressed by treatment with spironolactone, a mineralocorticoid receptor antagonist. Additionally, the urea-driven water conservation system was activated in hepatocellular carcinoma rats. SIGNIFICANCE These findings suggest that hepatocellular carcinoma induces body mass loss in parallel with activation of the water conservation system including aldosterone secretion and urea accumulation to retain osmolyte and water. The osmolyte and water retention at the tissue level may be a causative factor for ascites and edema formation in liver failure rats.
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Affiliation(s)
- Satoshi Kidoguchi
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan; Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kento Kitada
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan.
| | - Kazuki Nakajima
- Center for Joint Research Facilities Support, Research Promotion and Support Headquarters, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Daisuke Nakano
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Science, Kobe, Japan
| | - Wararat Kittikulsuth
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Hideki Kobara
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Tsutomu Masaki
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuo Takahashi
- Department of Biomedical Molecular Sciences, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Jens Titze
- Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore, Singapore; Division of Nephrology and Hypertension, Friedrich-Alexander University Erlangen-Nuremberg, Germany; Division of Nephrology, Duke University Medical Center, Durham, NC, USA
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan
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14
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Enomoto K, Matsunaga T, Sofue T, Nakamura A, Hirakawa E, Ibuki E, Haba R, Kamoshida S, Ohsaki H. p53 expression in repair/reactive renal tubular cells: A potential pitfall leading to a false-positive diagnosis of urine cytology. Cancer Med 2021; 10:8846-8853. [PMID: 34783171 PMCID: PMC8683536 DOI: 10.1002/cam4.4389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/07/2021] [Accepted: 09/13/2021] [Indexed: 11/07/2022] Open
Abstract
Background p53 immunostaining is routinely used as a surrogate marker for TP53 mutational status. In urine cytology, p53 immunocytochemistry is reportedly useful in detecting urothelial carcinoma cells as well as in improving the detection sensitivity and specificity. However, to the best of our knowledge, p53 expression in repair/reactive renal tubular cells (RRTCs) from urine cytologic specimens has not been assessed to date. Methods We evaluated the immunoexpression of p53 and homogentisate 1,2‐dioxygenase (HGD) antibody, a renal tubular cells marker, in RRTCs using voided urine and renal biopsy samples from 80 patients who were histologically diagnosed with glomerular disease. Results Repair/reactive renal tubular cells were detected in 68 (68/80, 85%) samples at a mean count of 141.1 cells per sample (range, 5–4220). Immunocytochemical analysis found p53‐positive RRTCs in all the samples (68/68, 100%) with an average p53 positivity rate of RRTCs per sample at 47.7% (range, 3.8%–96.5%). Of the 68 p53‐positive RRTC samples, 38 (55.9%) included cells that were HGD positive for cytoplasm. Similarly, renal biopsy analysis revealed p53‐positive RRTCs in all the specimens (68/68, 100%). All 68 (100%) cases showed RRTCs that were positive for both p53 and HGD. Conclusion To avoid false positives of p53 immunocytochemistry, cytologists must consider the fact that RRTCs from patients with glomerular disease are positive for p53.
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Affiliation(s)
- Kaori Enomoto
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Toru Matsunaga
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Tadashi Sofue
- Department of Cardiorenal and Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Akihiro Nakamura
- Department of Clinical Laboratory Science, Faculty of Health Care, Tenri Health Care University, Tenri, Japan
| | - Eiichiro Hirakawa
- Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Kagawa, Japan
| | - Emi Ibuki
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Reiji Haba
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
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15
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Rodriguez R, Lee AY, Godoy-Lugo JA, Martinez B, Ohsaki H, Nakano D, Parkes DG, Nishiyama A, Vázquez-Medina JP, Ortiz RM. Chronic AT 1 blockade improves hyperglycemia by decreasing adipocyte inflammation and decreasing hepatic PCK1 and G6PC1 expression in obese rats. Am J Physiol Endocrinol Metab 2021; 321:E714-E727. [PMID: 34658252 PMCID: PMC8782654 DOI: 10.1152/ajpendo.00584.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 10/04/2021] [Accepted: 10/07/2021] [Indexed: 11/22/2022]
Abstract
Inappropriate activation of the renin-angiotensin system decreases glucose uptake in peripheral tissues. Chronic angiotensin receptor type 1 (AT1) blockade (ARB) increases glucose uptake in skeletal muscle and decreases the abundance of large adipocytes and macrophage infiltration in adipose. However, the contributions of each tissue to the improvement in hyperglycemia in response to AT1 blockade are not known. Therefore, we determined the static and dynamic responses of soleus muscle, liver, and adipose to an acute glucose challenge following the chronic blockade of AT1. We measured adipocyte morphology along with TNF-α expression, F4/80- and CD11c-positive cells in adipose and measured insulin receptor (IR) phosphorylation and AKT phosphorylation in soleus muscle, liver, and retroperitoneal fat before (T0), 60 (T60) and 120 (T120) min after an acute glucose challenge in the following groups of male rats: 1) Long-Evans Tokushima Otsuka (LETO; lean control; n = 5/time point), 2) obese Otsuka Long Evans Tokushima Fatty (OLETF; n = 7 or 8/time point), and 3) OLETF + ARB (ARB; 10 mg olmesartan/kg/day; n = 7 or 8/time point). AT1 blockade decreased adipocyte TNF-α expression and F4/80- and CD11c-positive cells. In retroperitoneal fat at T60, IR phosphorylation was 155% greater in ARB than in OLETF. Furthermore, in retroperitoneal fat AT1 blockade increased glucose transporter-4 (GLUT4) protein expression in ARB compared with OLETF. IR phosphorylation and AKT phosphorylation were not altered in the liver of OLETF, but AT1 blockade decreased hepatic Pck1 and G6pc1 mRNA expressions. Collectively, these results suggest that chronic AT1 blockade improves obesity-associated hyperglycemia in OLETF rats by improving adipocyte function and by decreasing hepatic glucose production via gluconeogenesis.NEW & NOTEWORTHY Inappropriate activation of the renin-angiotensin system increases adipocyte inflammation contributing to the impairment in adipocyte function and increases hepatic Pck1 and G6pc1 mRNA expression in response to a glucose challenge. Ultimately, these effects may contribute to the development of glucose intolerance.
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Affiliation(s)
- Ruben Rodriguez
- Department of Molecular & Cellular Biology, University of California, Merced, California
| | - Andrew Y Lee
- Department of Molecular & Cellular Biology, University of California, Merced, California
| | - Jose A Godoy-Lugo
- Department of Molecular & Cellular Biology, University of California, Merced, California
| | - Bridget Martinez
- Department of Molecular & Cellular Biology, University of California, Merced, California
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Daisuke Nakano
- Department of Pharmacology, Kagawa University Medical School, Kagawa, Japan
| | | | - Akira Nishiyama
- Department of Pharmacology, Kagawa University Medical School, Kagawa, Japan
| | | | - Rudy M Ortiz
- Department of Molecular & Cellular Biology, University of California, Merced, California
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Ohsaki H, Ueda K, Minakawa T, Oshiro M, Kamoshida S, Sugiura Y, Suzuki M, Nishiyama A. Cytologic features of oral squamous cell carcinoma in an Indo-Pacific bottlenose dolphin (Tursiops aduncus): Papanicolaou stain and immunocytochemistry using liquid-based cytology. Vet Clin Pathol 2021; 50:404-409. [PMID: 34472131 DOI: 10.1111/vcp.12996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/04/2021] [Accepted: 01/04/2021] [Indexed: 12/26/2022]
Abstract
Although oral cytology using Papanicolaou stain is useful for the early detection of oral premalignant lesions and squamous cell carcinoma (SCC) in people, little work has been conducted on this topic in veterinary medicine. This paper describes the features of oral cytology using Papanicolaou stain and immunocytochemistry on liquid-based cytology slides in a case of oral SCC in an Indo-Pacific bottlenose dolphin (Tursiops aduncus). In this case, dysplastic cells with koilocyte-like changes and SCC cells were identified using the Papanicolaou stain. These cells were positive for p53 using an immunocytochemistry analysis. A cytologic diagnosis of SCC was made. We believe that the early detection of premalignant oral lesions and SCC in dolphins can be significantly improved with cytology using liquid-based cytology, Papanicolaou staining, and immunocytochemistry.
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Affiliation(s)
- Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Science, Kobe, Japan
| | - Keiichi Ueda
- Okinawa Churashima Foundation, Kunigami-gun, Japan
| | | | - Mariko Oshiro
- Health Information Management Major, Faculty of International Studies, Meio University, Nago, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Science, Kobe, Japan
| | - Yuki Sugiura
- Department of Biochemistry, Keio University School of Medicine, Shinjuku-ku, Japan
| | - Miwa Suzuki
- Department of Marine Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kida-gun, Japan
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17
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Okuda C, Kyotake A, Nakamura A, Itoh T, Kamoshida S, Ohsaki H. Quantitative cytomorphological comparison of SurePath and ThinPrep liquid-based cytology using high-grade urothelial carcinoma cells. Cytopathology 2021; 32:654-659. [PMID: 34033150 DOI: 10.1111/cyt.12998] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/16/2021] [Accepted: 04/28/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE In The Paris System for Reporting Urinary Cytology (TPS), the important cytomorphological features for diagnosing high-grade urothelial carcinoma (HGUC) are a nuclear-to-cytoplasmic (N:C) ratio exceeding 0.7, hyperchromasia, coarse chromatin, and irregular nuclear borders. However, quantitative cytomorphological assessments of HGUC cells using SurePath slides are rare. Therefore, we evaluated HGUC cells on SurePath slides quantitatively using a digital image analysis system and compared these data with ThinPrep data. METHODS The same urine samples were divided into two aliquots and used to prepare SurePath and ThinPrep slides. We used ImageJ to measure the N:C ratio, hyperchromasia, and irregular nuclear borders for HGUC cells on SurePath and ThinPrep slides. RESULTS The total number of analysed HGUC cells on SurePath slides was 981, versus 889 on ThinPrep slides. Hyperchromasia and irregular nuclear borders were significantly more severe on SurePath than on ThinPrep slides. Conversely, the N:C ratio did not differ between the methods. Additionally, HGUC cells with N:C ratios exceeding 0.7 were present on almost all slides for both methods. CONCLUSIONS Our data indicated the reasonableness of using the N:C ratio as the major criterion for TPS on both SurePath and ThinPrep slides, and an N:C ratio cut-off of 0.7 as suitable for identifying HGUC cells. However, the severity of hyperchromasia and irregular nuclear borders differed between the processing methods.
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Affiliation(s)
- Chihiro Okuda
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Aiko Kyotake
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akihiro Nakamura
- Department of Clinical Laboratory Science, Faculty of Health Care, Tenri Health Care University, Tenri, Japan
| | - Tomoo Itoh
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
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18
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Morito S, Nitanda T, Tsukamoto R, Kamoshida S, Yasui H, Itoh T, Ohsaki H. Rapid Cell Transfer by Means of Nylon Mesh to Improve Cellular Diagnosis: The Role of Immunocytochemistry. Acta Cytol 2021; 65:424-429. [PMID: 34098550 DOI: 10.1159/000516555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/10/2021] [Indexed: 11/19/2022]
Abstract
Immunocytochemistry (ICC) is an important ancillary technique in clinical cytology for not only identifying and characterizing tumor cells but also gaining prognostic or therapeutic information. Although cell blocks are often prepared for immunocytochemical evaluation of body cavity fluid and fine-needle aspiration specimens, they are not suitable for hypocellular samples. Liquid-based cytology can help prepare additional smears from residual cytological specimens. However, since conventional methods are used for nongynecological specimens in most laboratories, ICC is often limited by the number of cytological smears. Cell transfer methods permit to evaluate several immunocytochemical markers in a single cytological smear. Yet, these methods have some limitations; for example, they are time-consuming (about 3-40 h) and medium membranes with their attached cells are occasionally stretched or torn when peeled off the slides. Therefore, in an attempt to solve these problems, we developed a rapid and reliable cell transfer method using a nylon mesh. Our method requires no special equipment or reagent and can significantly reduce the turnaround time, as compared to previous methods.
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Affiliation(s)
- Satoshi Morito
- Department of Diagnostic Pathology, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Takao Nitanda
- Department of Diagnostic Pathology, Kobe University Hospital, Kobe, Japan
| | - Ryuko Tsukamoto
- Department of Diagnostic Pathology, Kobe University Hospital, Kobe, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Hiroshi Yasui
- Department of Diagnostic Pathology, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Tomoo Itoh
- Department of Diagnostic Pathology, Kobe University Hospital, Kobe, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
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Rahman A, Sawano T, Sen A, Hossain A, Jahan N, Kobara H, Masaki T, Kosaka S, Kitada K, Nakano D, Imamura T, Ohsaki H, Nishiyama A. Cardioprotective Effects of a Nonsteroidal Mineralocorticoid Receptor Blocker, Esaxerenone, in Dahl Salt-Sensitive Hypertensive Rats. Int J Mol Sci 2021; 22:2069. [PMID: 33669786 PMCID: PMC7922950 DOI: 10.3390/ijms22042069] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 02/09/2021] [Accepted: 02/17/2021] [Indexed: 01/13/2023] Open
Abstract
We investigated the effects of esaxerenone, a novel, nonsteroidal, and selective mineralocorticoid receptor blocker, on cardiac function in Dahl salt-sensitive (DSS) rats. We provided 6-week-old DSS rats a high-salt diet (HSD, 8% NaCl). Following six weeks of HSD feeding (establishment of cardiac hypertrophy), we divided the animals into the following two groups: HSD or HSD + esaxerenone (0.001%, w/w). In survival study, all HSD-fed animals died by 24 weeks of age, whereas the esaxerenone-treated HSD-fed animals showed significantly improved survival. We used the same protocol with a separate set of animals to evaluate the cardiac function by echocardiography after four weeks of treatment. The results showed that HSD-fed animals developed cardiac dysfunction as evidenced by reduced stroke volume, ejection fraction, and cardiac output. Importantly, esaxerenone treatment decreased the worsening of cardiac dysfunction concomitant with a significantly reduced level of systolic blood pressure. In addition, treatment with esaxerenone in HSD-fed DSS rats caused a reduced level of cardiac remodeling as well as fibrosis. Furthermore, inflammation and oxidative stress were significantly reduced. These data indicate that esaxerenone has the potential to mitigate cardiac dysfunction in salt-induced myocardial injury in rats.
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Affiliation(s)
- Asadur Rahman
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan; (A.R.); (A.S.); (A.H.); (N.J.); (K.K.); (D.N.)
| | - Tatsuya Sawano
- Division of Pharmacology, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan; (T.S.); (T.I.)
| | - Anupoma Sen
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan; (A.R.); (A.S.); (A.H.); (N.J.); (K.K.); (D.N.)
| | - Akram Hossain
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan; (A.R.); (A.S.); (A.H.); (N.J.); (K.K.); (D.N.)
| | - Nourin Jahan
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan; (A.R.); (A.S.); (A.H.); (N.J.); (K.K.); (D.N.)
| | - Hideki Kobara
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan; (H.K.); (T.M.)
| | - Tsutomu Masaki
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan; (H.K.); (T.M.)
| | - Shinji Kosaka
- Department of Pharmacy, Kagawa University Hospital, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan;
| | - Kento Kitada
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan; (A.R.); (A.S.); (A.H.); (N.J.); (K.K.); (D.N.)
| | - Daisuke Nakano
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan; (A.R.); (A.S.); (A.H.); (N.J.); (K.K.); (D.N.)
| | - Takeshi Imamura
- Division of Pharmacology, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan; (T.S.); (T.I.)
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2, Tomogaoka, Suma-ku, Kobe, Hyogo 654-0142, Japan;
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan; (A.R.); (A.S.); (A.H.); (N.J.); (K.K.); (D.N.)
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20
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Shibayama Y, Takahashi K, Yamaguchi H, Yasuda J, Yamazaki D, Rahman A, Fujimori T, Fujisawa Y, Takai S, Furukawa T, Nakagawa T, Ohsaki H, Kobara H, Wong JH, Masaki T, Yuzawa Y, Kiyomoto H, Yachida S, Fujimoto A, Nishiyama A. Aberrant (pro)renin receptor expression induces genomic instability in pancreatic ductal adenocarcinoma through upregulation of SMARCA5/SNF2H. Commun Biol 2020; 3:724. [PMID: 33247206 PMCID: PMC7695732 DOI: 10.1038/s42003-020-01434-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 10/23/2020] [Indexed: 12/13/2022] Open
Abstract
(Pro)renin receptor [(P)RR] has a role in various diseases, such as cardiovascular and renal disorders and cancer. Aberrant (P)RR expression is prevalent in pancreatic ductal adenocarcinoma (PDAC) which is the most common pancreatic cancer. Here we show whether aberrant expression of (P)RR directly leads to genomic instability in human pancreatic ductal epithelial (HPDE) cells. (P)RR-expressing HPDE cells show obvious cellular atypia. Whole genome sequencing reveals that aberrant (P)RR expression induces large numbers of point mutations and structural variations at the genome level. A (P)RR-expressing cell population exhibits tumour-forming ability, showing both atypical nuclei characterised by distinctive nuclear bodies and chromosomal abnormalities. (P)RR overexpression upregulates SWItch/Sucrose Non-Fermentable (SWI/SNF)-related, matrix-associated, actin-dependent regulator of chromatin, subfamily a, member 5 (SMARCA5) through a direct molecular interaction, which results in the failure of several genomic stability pathways. These data reveal that aberrant (P)RR expression contributes to the early carcinogenesis of PDAC. Yuki Shibayama et al. find that high expression of (pro)renin receptor [(P)RR] in human pancreatic ductal cells causes increased genomic instability, leading to the development of pancreatic ductal adenocarcinoma. They show that (P)RR exerts its carcinogenic effects through direct binding and activation of the chromatin regulator SMARCA5.
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Affiliation(s)
- Yuki Shibayama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, 761-0793, Japan
| | - Kazuo Takahashi
- Department of Nephrology, Fujita Health University School of Medicine, Aichi, 470-1192, Japan
| | - Hisateru Yamaguchi
- Division of Biomedical Polymer Science, Institute for Comprehensive Medical Science, Fujita Health University School of Medicine, Aichi, 470-1192, Japan.,Department of Medical Technology, School of Nursing and Medical Care, Yokkaichi Nursing and Medical Care University, Mie, 512-8045, Japan
| | - Jun Yasuda
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, 980-8573, Japan.,Division of Molecular and Cellular Oncology, Miyagi Cancer Center Research Institute, Miyagi, 981-1293, Japan
| | - Daisuke Yamazaki
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, 761-0793, Japan
| | - Asadur Rahman
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, 761-0793, Japan
| | - Takayuki Fujimori
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, 761-0793, Japan.,Fujimori Clinic for Internal Medicine and Gastroenterology, Kagawa, 761-8075, Japan
| | - Yoshihide Fujisawa
- Health Science Research Center, Faculty of Medicine, Kagawa University, Kagawa, 761-0793, Japan
| | - Shinji Takai
- Department of Innovative Medicine, Graduate School of Medicine, Osaka Medical College, Osaka, 569-8686, Japan
| | - Toru Furukawa
- Department of Investigative Pathology, Tohoku University Graduate School of Medicine, Miyagi, 980-8575, Japan
| | - Tsutomu Nakagawa
- Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Hyogo, 654-0142, Japan
| | - Hideki Kobara
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, 761-0793, Japan
| | - Jing Hao Wong
- Department of Human Genetics, The University of Tokyo, Graduate School of Medicine, Tokyo, 113-0033, Japan
| | - Tsutomu Masaki
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, 761-0793, Japan
| | - Yukio Yuzawa
- Department of Nephrology, Fujita Health University School of Medicine, Aichi, 470-1192, Japan
| | - Hideyasu Kiyomoto
- Community Medical Support, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, 980-8573, Japan
| | - Shinichi Yachida
- Department of Cancer Genome Informatics, Faculty of Medicine, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan
| | - Akihiro Fujimoto
- Department of Human Genetics, The University of Tokyo, Graduate School of Medicine, Tokyo, 113-0033, Japan.
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, 761-0793, Japan.
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Li L, Nakano D, Zhang A, Kittikulsuth W, Morisawa N, Ohsaki H, Suzuki N, Yamamoto M, Nishiyama A. Effects of post-renal anemia treatment with the HIF-PHD inhibitor molidustat on adenine-induced renal anemia and kidney disease in mice. J Pharmacol Sci 2020; 144:229-236. [PMID: 33070842 DOI: 10.1016/j.jphs.2020.09.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/27/2020] [Accepted: 09/14/2020] [Indexed: 02/06/2023] Open
Abstract
The kidneys are the major organs for erythropoietin (EPO) production in adults, and thus, kidney damage results in reduced EPO levels and anemia. Inhibitors of Hypoxia-inducible factor-prolyl hydroxylase domain-containing protein (HIF-PHD) are awaited as new therapeutic options for renal anemia. It can be predicted that most patients who receive HIF-PHD inhibitors have renal dysfunction as a cause of anemia. Therefore, in the present study, we investigated the effects of the HIF-PHD inhibitor molidustat on anemia and renal dysfunction when initiated after the onset of renal anemia. Male C57BL/6J mice received adenine orally to induce nephropathy. After the onset of nephropathy, the mice were treated with either vehicle or molidustat. After 4 weeks of administration, vehicle-treated mice displayed significant anemia, and molidustat ameliorated this anemia. Vehicle-treated mice exhibited reduced creatinine clearance and body weight, increased blood urea nitrogen levels, histopathological changes, immune cell infiltration, and dehydration. Molidustat reversed immune cell infiltration, dehydration, and renal fibrosis without improving renal functional parameters. In conclusion, molidustat treatment initiated after the onset of nephropathy and renal anemia reversed anemia in mice. Molidustat improved some parameters of renal abnormality, but it did not restore renal function.
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Affiliation(s)
- Lei Li
- Department of Pharmacology, Kagawa University Medical School, Kagawa, Japan
| | - Daisuke Nakano
- Department of Pharmacology, Kagawa University Medical School, Kagawa, Japan.
| | - Anqi Zhang
- Department of Pharmacology, Kagawa University Medical School, Kagawa, Japan
| | | | - Norihiko Morisawa
- Department of Pharmacology, Kagawa University Medical School, Kagawa, Japan
| | - Hiroyuki Ohsaki
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Norio Suzuki
- Division of Oxygen Biology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masayuki Yamamoto
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Akira Nishiyama
- Department of Pharmacology, Kagawa University Medical School, Kagawa, Japan
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22
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Hosokawa S, Shukuya K, Sogabe K, Ejima Y, Morinishi T, Hirakawa E, Ohsaki H, Shimosawa T, Tokuhara Y. Novel absorbance peak of gentisic acid following the oxidation reaction. PLoS One 2020; 15:e0232263. [PMID: 32348369 PMCID: PMC7190133 DOI: 10.1371/journal.pone.0232263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 04/10/2020] [Indexed: 11/18/2022] Open
Abstract
Gentisic acid (GA), a metabolite of acetylsalicylic acid (ASA), and homogentisic acid (HGA), which is excreted at high levels in alkaptonuria, are divalent phenolic acids with very similar structures. Urine containing HGA is dark brown in color due to its oxidation. We recently reported a new oxidation method of HGA involving the addition of sodium hydroxide (NaOH) with sodium hypochlorite pentahydrate (NaOCl·5H2O), which is a strong oxidant. In the present study, we attempted to oxidize GA, which has a similar structure to HGA, using our method. We herein observed color changes in GA solution and analyzed the absorption spectra of GA after the addition of NaOH with NaOCl·5H2O. We also examined the oxidation reaction of GA using a liquid chromatography time-of-flight mass spectrometer (LC/TOF-MS). The results obtained indicated that GA solution had a unique absorption spectrum with a peak at approximately 500 nm through an oxidation reaction following the addition of NaOH with NaOCl·5H2O. This spectrophotometric method enables GA to be detected in sample solutions without expensive analytical instruments or a complex method.
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Affiliation(s)
- Sho Hosokawa
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime, Japan
| | - Kenichi Shukuya
- Department of Medical Technology and Sciences, School of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan
| | | | - Yasukazu Ejima
- Kaneka Corporation, Vinyls and Chlor-Alkali Solutions Vehicle, Osaka, Japan
| | - Tatsuya Morinishi
- Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Kagawa, Japan
| | - Eiichiro Hirakawa
- Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Kagawa, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Tatsuo Shimosawa
- Clinical Laboratory Medicine, School of Medicine, International University of Health and Welfare, Chiba, Japan
| | - Yasunori Tokuhara
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime, Japan
- * E-mail:
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23
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Sakanashi F, Shintani M, Tsuneyoshi M, Ohsaki H, Kamoshida S. Apoptosis, necroptosis and autophagy in colorectal cancer: Associations with tumor aggressiveness and p53 status. Pathol Res Pract 2019; 215:152425. [PMID: 31097354 DOI: 10.1016/j.prp.2019.04.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/05/2019] [Accepted: 04/26/2019] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Cleaved caspase-3 (CC3), phosphorylated-mixed-lineage kinase domain-like protein (p-MLKL), and microtubule-associated protein-1 light chain-3B (LC3B) have pivotal functions in apoptosis, necroptosis, and autophagy, respectively. In vitro studies have shown that interaction of these proteins are complex and their roles in cancer can be influenced by many factors. However, these findings are not adequately assessed in human tissues. Here, we determined CC3, p-MLKL, and LC3B expression in colorectal cancers (CRCs), and assessed their associations with clinicopathological parameters, and with KRAS and p53 status. METHODS We immunohistochemically assessed 113 CRC specimens for levels of CC3, p-MLKL, LC3B, and p53. KRAS gene status was analyzed using the Scorpion- amplification refractory mutation system. RESULTS High levels of CC3 (CC3High) and LC3B (LC3BHigh) were detected in 38% and 35% of the 113 CRCs, respectively, but no or only a few p-MLKL-positive cells were observed in any of the tumors. CC3High was significantly associated with high pT status (P = 0.03), vascular invasion (P = 0.03) and high pStage (P = 0.04) and was marginally associated with lymph node (P = 0.06) and distant metastases (P = 0.06). LC3BHigh was also significantly associated with high pT status (P = 0.02) and lymphatic invasion (P = 0.002), and was marginally associated with nerve plexus invasion (P = 0.06). In combined analysis, compared with CC3Low/LC3BLow tumors, tumors that were either CC3High, LC3BHigh, or both were significantly associated with high pT status (P = 0.0007), lymphatic invasion (P = 0.03), vascular invasion (P = 0.003), distant metastasis (P = 0.04) and high pStage (P = 0.04). LC3BHigh was significantly associated with a mutant-type expression pattern of p53 (P = 0.003). CONCLUSION To the best of our knowledge, this is the first study to examine the combination of CC3/LC3B and p-MLKL expression in clinical CRC samples and to correlate these expression data with clinicopathological parameters and EGFR and p53 status. Our results suggest that necroptosis is a rare process in CRC, apoptosis and autophagy are upregulated in aggressive CRCs, and p53 mutation may lead to the upregulation of autophagy.
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Affiliation(s)
- Fuminori Sakanashi
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma, Kobe, Hyogo 654-0142, Japan; Department of Diagnostic Pathology, Fukuoka Sanno Hospital, 3-6-45 Momochihama, Sawara, Fukuoka 814-0001, Japan.
| | - Michiko Shintani
- Department of Medical Technology, Kobe Tokiwa University, 2-6-2 Ohtani, Nagata, Kobe, Hyogo 653-0838, Japan
| | - Masazumi Tsuneyoshi
- Department of Diagnostic Pathology, Fukuoka Sanno Hospital, 3-6-45 Momochihama, Sawara, Fukuoka 814-0001, Japan
| | - Hiroyuki Ohsaki
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma, Kobe, Hyogo 654-0142, Japan
| | - Shingo Kamoshida
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma, Kobe, Hyogo 654-0142, Japan
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24
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Tsukamoto R, Ohsaki H, Hosokawa S, Tokuhara Y, Kamoshida S, Sakuma T, Itoh T, Ohbayashi C. Qualitative and quantitative cytomorphological features of primary anaplastic lymphoma kinase-positive lung cancer. Cytopathology 2018; 30:295-300. [PMID: 30506595 DOI: 10.1111/cyt.12667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 08/27/2018] [Accepted: 11/20/2018] [Indexed: 12/01/2022]
Abstract
OBJECTIVE Anaplastic lymphoma kinase (ALK) positive (+) lung cancers are predictive for response to crizotinib and alectinib. There are many cases of lung cancer in which surgery cannot be performed, and such cases require diagnosis by cytological specimen or biopsy. Estimating ALK (+) lung cancer from cytomorphology would allow molecular testing to proceed without the waste of a small amount of specimen. The purpose of this study was to assess whether qualitative and quantitative cytomorphological features are sufficient for distinguishing primary ALK (+) from ALK (-) lung cancer. METHODS We examined eight qualitative cytomorphological parameters and three quantitative nuclear morphometric parameters in 17 cases of primary ALK (+) lung cancer, diagnosed by fluorescence in situ hybridisation (FISH) using histological specimens, and in 41 cases of ALK (-) lung cancer. Quantitative nuclear morphometric parameters were analysed by a computer-assisted image analysis system. RESULTS In ALK (+) lung cancer, three qualitative parameters (signet ring cells, nuclear grooves and single type nucleoli) and two quantitative parameters (large nuclear area and irregular nuclear shape) were observed in significantly higher proportions. However, in ALK (-) lung cancer, one qualitative parameter (unclear and multiple type nucleoli) was seen significantly more often. CONCLUSIONS These results show that the cytomorphological features of signet ring cells, nuclear grooves and nucleoli shape can help to triage a small amount of cytological and biopsy specimens for appropriate molecular testing of primary ALK (+) lung cancer.
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Affiliation(s)
- Ryuko Tsukamoto
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Sho Hosokawa
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime, Japan
| | - Yasunori Tokuhara
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Toshiko Sakuma
- Department of Pathology, Hyogo Cancer Center, Hyogo, Japan
| | - Tomoo Itoh
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Chiho Ohbayashi
- Department of Diagnostic Pathology, Nara Medical University, Nara, Japan
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Okamura S, Osaki T, Nishimura K, Ohsaki H, Shintani M, Matsuoka H, Maeda K, Shiogama K, Itoh T, Kamoshida S. Thymidine kinase-1/CD31 double immunostaining for identifying activated tumor vessels. Biotech Histochem 2018; 94:60-64. [DOI: 10.1080/10520295.2018.1499962] [Citation(s) in RCA: 6] [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: 12/22/2022] Open
Affiliation(s)
- S. Okamura
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - T. Osaki
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - K. Nishimura
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - H. Ohsaki
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - M. Shintani
- Department of Medical Technology, Kobe Tokiwa University, Japan
| | - H. Matsuoka
- Department of Surgery, Fujita Health University School of Medicine
| | - K. Maeda
- Department of Surgery, Fujita Health University School of Medicine
| | - K. Shiogama
- Department of Morphology and Cell Function, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - T. Itoh
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - S. Kamoshida
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
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Ohsaki H, Matsunaga T, Fujita T, Tokuhara Y, Kamoshida S, Sofue T. Quantifying Podocytes and Parietal Epithelial Cells in Human Urine Using Liquid-based Cytology and WT1 Immunoenzyme Staining. Bio Protoc 2018; 8:e2827. [PMID: 34286037 PMCID: PMC8275290 DOI: 10.21769/bioprotoc.2827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 02/13/2018] [Revised: 04/14/2018] [Accepted: 04/23/2018] [Indexed: 11/02/2022] Open
Abstract
In glomerular disease, podocytes and parietal epithelial cells (PECs) are shed in the urine. Therefore, urinary podocytes and PECs are noninvasive biomarkers of glomerular disease. The purpose of this protocol is to employ immunocytochemistry to detect podocytes and PECs, using the WT1 antibody on liquid-based cytology slides.
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Affiliation(s)
- Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Toru Matsunaga
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Taishi Fujita
- Department of Clinical Laboratory, Ehime General Health Care Association, Ehime, Japan
| | - Yasunori Tokuhara
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime, Japan
| | - Shingo Kamoshida
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Tadashi Sofue
- Department of Cardiorenal and Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan
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27
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Sekino M, Kuwahata A, Ookubo T, Shiozawa M, Ohashi K, Kaneko M, Saito I, Inoue Y, Ohsaki H, Takei H, Kusakabe M. Handheld magnetic probe with permanent magnet and Hall sensor for identifying sentinel lymph nodes in breast cancer patients. Sci Rep 2018; 8:1195. [PMID: 29352214 PMCID: PMC5775278 DOI: 10.1038/s41598-018-19480-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 12/12/2017] [Indexed: 12/12/2022] Open
Abstract
The newly developed radioisotope-free technique based on magnetic nanoparticle detection using a magnetic probe is a promising method for sentinel lymph node biopsy. In this study, a novel handheld magnetic probe with a permanent magnet and magnetic sensor is developed to detect the sentinel lymph nodes in breast cancer patients. An outstanding feature of the probe is the precise positioning of the sensor at the magnetic null point of the magnet, leading to highly sensitive measurements unaffected by the strong ambient magnetic fields of the magnet. Numerical and experimental results show that the longitudinal detection length is approximately 10 mm, for 140 μg of iron. Clinical tests were performed, for the first time, using magnetic and blue dye tracers—without radioisotopes—in breast cancer patients to demonstrate the performance of the probe. The nodes were identified through transcutaneous and ex-vivo measurements, and the iron accumulation in the nodes was quantitatively revealed. These results show that the handheld magnetic probe is useful in sentinel lymph node biopsy and that magnetic techniques are widely being accepted as future standard methods in medical institutions lacking nuclear medicine facilities.
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Affiliation(s)
- Masaki Sekino
- Graduate School of Engineering, The University of Tokyo, Tokyo, 113-0032, Japan.
| | - Akihiro Kuwahata
- Graduate School of Engineering, The University of Tokyo, Tokyo, 113-0032, Japan.
| | - Tetsu Ookubo
- Graduate School of Engineering, The University of Tokyo, Tokyo, 113-0032, Japan
| | - Mikio Shiozawa
- Tochigi-Medical-Center-Shimotsuga, Tochigi, 329-4498, Japan
| | - Kaichi Ohashi
- Graduate School of Engineering, The University of Tokyo, Tokyo, 113-0032, Japan
| | - Miki Kaneko
- Graduate School of Engineering, The University of Tokyo, Tokyo, 113-0032, Japan
| | | | - Yusuke Inoue
- Graduate School of Engineering, The University of Tokyo, Tokyo, 113-0032, Japan.,Institute of Development, Aging and Cancer, Tohoku University, Miyagi, 980-8575, Japan
| | - Hiroyuki Ohsaki
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, 277-8561, Japan
| | - Hiroyuki Takei
- Department of Breast Oncology, Nippon Medical School Hospital, Tokyo, 113-8603, Japan
| | - Moriaki Kusakabe
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan.,Matrix Cell Research Institute Inc, Ibaraki, 300-1232, Japan
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Sofue T, Kushida Y, Ozaki T, Moritoki M, Nishijima Y, Ohsaki H, Ueda N, Kakehi Y, Nishiyama A, Minamino T. Tubular Cell Senescence in the Donated Kidney Predicts Allograft Function, but Not Donor Remnant Kidney Function, in Living Donor Kidney Transplantation. Am J Nephrol 2017; 47:8-17. [PMID: 29275400 DOI: 10.1159/000485845] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/28/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND It is uncertain whether kidneys from marginal donors are suitable for live kidney transplantation. In deceased donor kidneys, tubular cell senescence affects allograft function. However, the degree of cell senescence in a living donor kidney with marginal factors has not been reported. In this study, we assessed the association of tubular cell senescence with allograft and remnant kidney function by a prospective observational clinical study. METHODS Thirty-eight living donor kidney transplantations were analyzed prospectively. Tissue sections obtained from preimplantation kidney biopsies were immunostained for p16INK4a to indicate cell senescence. Various kidney biomarkers were analyzed in urine and blood samples. RESULTS Of the 38 donors, 21 had marginal factors. Severe tubular senescence was found in living donors with overlapping marginal criteria. Tubular senescence in living donor kidneys was significantly related to donor age and lower recipient kidney function at 1 year after transplantation independently of donor age (β = -0.281; p = 0.050) but did not affect remnant kidney function after donation. Pretransplantation donor pre-estimated glomerular filtration rate and hypertension did not show a significant area under the curve (AUC) for prediction of high tubular senescence. High plasma levels of soluble αKlotho were associated with a higher predictive value for low tubular cell senescence with an AUC of 0.78 (95% CI 0.62-0.93; p < 0.01). CONCLUSIONS The nuclear p16-staining rate in donated kidney tubules is a predictor for allograft kidney function but not donor remnant kidney function. Detection of tubular cell senescence may facilitate selection of appropriate living donor candidates.
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Affiliation(s)
- Tadashi Sofue
- Division of Nephrology and Dialysis, Department of Cardiorenal and Cerebrovascular Medicine, Kagawa University, Kagawa, Japan
| | - Yoshio Kushida
- Department of Pathology, Kagawa University, Kagawa, Japan
| | - Taro Ozaki
- Division of Nephrology and Dialysis, Department of Cardiorenal and Cerebrovascular Medicine, Kagawa University, Kagawa, Japan
| | - Masahiro Moritoki
- Division of Nephrology and Dialysis, Department of Cardiorenal and Cerebrovascular Medicine, Kagawa University, Kagawa, Japan
| | - Yoko Nishijima
- Division of Nephrology and Dialysis, Department of Cardiorenal and Cerebrovascular Medicine, Kagawa University, Kagawa, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Nobufumi Ueda
- Department of Urology, Kagawa University, Kagawa, Japan
| | | | - Akira Nishiyama
- Department of Pharmacology, Kagawa University, Kagawa, Japan
| | - Tetsuo Minamino
- Division of Nephrology and Dialysis, Department of Cardiorenal and Cerebrovascular Medicine, Kagawa University, Kagawa, Japan
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Tokuhara Y, Morinishi T, Matsunaga T, Sakai M, Sakai T, Ohsaki H, Kadota K, Kushida Y, Haba R, Hirakawa E. Nuclear expression of claudin-3 in human colorectal adenocarcinoma cell lines and tissues. Oncol Lett 2017; 15:99-108. [PMID: 29285188 DOI: 10.3892/ol.2017.7281] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 08/10/2017] [Indexed: 12/21/2022] Open
Abstract
Claudins are members of a large family of transmembrane proteins, which are essential for the formation of tight junctions and have a significant effect on the biological behavior of tumor progression. Previous studies have demonstrated that several claudins show aberrant expression patterns in numerous types of cancer. The present study investigated the expression and localization of claudin-3 and claudin-7 in human colorectal adenocarcinoma cell lines and tissues. The protein expression levels of claudin-3 and claudin-7 were determined using immunocytochemical and immunohistochemical staining. Claudin-3, but not claudin-7, exhibited nuclear localization in the human colorectal adenocarcinoma Caco-2 and SW620 cell lines. Surgically resected colorectal adenocarcinoma tissue specimens were obtained, and the associations between the expression of claudin-3 or claudin-7 and various clinicopathological parameters were analyzed. The membranous expression rates of claudin-3 and claudin-7 were 58.0 and 50.0%, while their nuclear expression rates were 22.0 and 2.0%, respectively. The membranous expression of claudin-3 and claudin-7 was not associated with any clinicopathological factors, whereas the nuclear expression of claudin-3 was associated with histological type and was significantly increased in colorectal mucinous adenocarcinomas compared with that in well- to moderately-differentiated colorectal adenocarcinomas (P<0.01). However, no associations were observed between the nuclear expression of claudin-7 and any clinicopathological parameter. In conclusion, the nuclear expression of claudin-3 in colorectal mucinous adenocarcinoma may be involved in the biological transformation of tumors. The results from the present study indicated that claudin-3 is an important protein associated with histological type and has potential as a prognostic marker. Although the mechanisms underlying the nuclear localization of claudin-3 in tumorigenesis have not yet been elucidated in detail, the present results indicated the potential of claudin-3 as a histopathological biomarker for colorectal adenocarcinomas.
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Affiliation(s)
- Yasunori Tokuhara
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan.,Department of Medical Technology, Ehime Prefectural University of Health Sciences, Tobe, Ehime 791-2101, Japan
| | - Tatsuya Morinishi
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
| | - Toru Matsunaga
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Miki, Kagawa 761-0793, Japan
| | - Manabu Sakai
- Department of Clinical Laboratory, Osaka University Dental Hospital, Osaka 565-0871, Japan
| | - Takayoshi Sakai
- Department of Oral-Facial Disorders, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Hiroyuki Ohsaki
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Hyogo 654-0142, Japan
| | - Kyuichi Kadota
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Miki, Kagawa 761-0793, Japan
| | - Yoshio Kushida
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Miki, Kagawa 761-0793, Japan
| | - Reiji Haba
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Miki, Kagawa 761-0793, Japan
| | - Eiichiro Hirakawa
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761-0123, Japan
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30
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Fujita T, Sofue T, Moritoki M, Nishijima Y, Tokuhara Y, Wakisaka H, Kushida Y, Haba R, Ohsaki H. Urinary WT1-positive cells as a non-invasive biomarker of crescent formation. Cytopathology 2017; 28:524-530. [PMID: 28913845 DOI: 10.1111/cyt.12460] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The purpose of this study was to assess the relationship between urinary WT1-positive cells (podocytes and active parietal epithelial cells) and WT1-positive cells in renal biopsy to investigate whether urinary WT1-positive cells are useful for detection of crescent formation. METHODS Fifty-two patients with kidney disease were investigated (15 cases with crescentic lesions and 37 cases with non-crescentic lesions) for immunoenzyme staining using anti-WT1 antibody for urine cytology and renal biopsy. Numbers of WT1-positive cells in urine and renal biopsy were counted. RESULTS There was no correlation between urinary WT1-positive cells and WT1-positive cells in renal biopsy. However, the number of urinary WT1-positive cells in patients with crescentic lesions was significantly higher than in patients with non-crescentic lesions. In addition, the best cut-off value to detect patients with crescentic lesions using urinary was 5 cells/10-mL (area under the concentration-time curve=0.735). CONCLUSIONS The results of our study suggest urinary WT1-positive cells can be used to detect patients with crescent formation using 5 cells/10-mL cutoff value. WT1-positive glomerular podocytes and parietal epithelial cells may be shed into urine in active glomerular disease. This study, investigating the relationship between WT1-positive cells in urine and in the renal biopsy found no correlation; however, the results do suggest that, using a cutoff value of 5 cells/10 mL, WT1 positive urinary cells can be used to detect patients with crescent formation.
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Affiliation(s)
- T Fujita
- Department of Clinical Laboratory, Ehime General Health Care Association, Ehime, Japan.,Course of Medical Technology, Graduate School of Ehime Prefectural University of Health Sciences, Ehime, Japan
| | - T Sofue
- Department of Cardiorenal and Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - M Moritoki
- Department of Cardiorenal and Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Y Nishijima
- Department of Cardiorenal and Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Y Tokuhara
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime, Japan
| | - H Wakisaka
- Department of Nursing, Ehime Prefectural University of Health Sciences, Ehime, Japan
| | - Y Kushida
- Department of Diagnostic Pathology, Faculty of Medicine, University Hospital, Kagawa University, Kagawa, Japan
| | - R Haba
- Department of Diagnostic Pathology, Faculty of Medicine, University Hospital, Kagawa University, Kagawa, Japan
| | - H Ohsaki
- Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
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31
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Mashud R, Nomachi A, Hayakawa A, Kubouchi K, Danno S, Hirata T, Matsuo K, Nakayama T, Satoh R, Sugiura R, Abe M, Sakimura K, Wakana S, Ohsaki H, Kamoshida S, Mukai H. Impaired lymphocyte trafficking in mice deficient in the kinase activity of PKN1. Sci Rep 2017; 7:7663. [PMID: 28794483 PMCID: PMC5550459 DOI: 10.1038/s41598-017-07936-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 04/25/2017] [Accepted: 07/05/2017] [Indexed: 12/11/2022] Open
Abstract
Knock-in mice lacking PKN1 kinase activity were generated by introducing a T778A point mutation in the catalytic domain. PKN1[T778A] mutant mice developed to adulthood without apparent external abnormalities, but exhibited lower T and B lymphocyte counts in the peripheral blood than those of wild-type (WT) mice. T and B cell development proceeded in an apparently normal fashion in bone marrow and thymus of PKN1[T778A] mice, however, the number of T and B cell counts were significantly higher in the lymph nodes and spleen of mutant mice in those of WT mice. After transfusion into WT recipients, EGFP-labelled PKN1[T778A] donor lymphocytes were significantly less abundant in the peripheral circulation and more abundant in the spleen and lymph nodes of recipient mice compared with EGFP-labelled WT donor lymphocytes, likely reflecting lymphocyte sequestration in the spleen and lymph nodes in a cell-autonomous fashion. PKN1[T778A] lymphocytes showed significantly lower chemotaxis towards chemokines and sphingosine 1-phosphate (S1P) than WT cells in vitro. The biggest migration defect was observed in response to S1P, which is essential for lymphocyte egress from secondary lymphoid organs. These results reveal a novel role of PKN1 in lymphocyte migration and localization.
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Affiliation(s)
- Rana Mashud
- Graduate School of Medicine, Kobe University, Kobe, 650-0017, Japan
| | - Akira Nomachi
- Center for Innovation in Immunoregulative Technology and Therapeutics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akihide Hayakawa
- Graduate School of Science and Technology, Kobe University, Kobe, 657-8501, Japan
| | - Koji Kubouchi
- Graduate School of Medicine, Kobe University, Kobe, 650-0017, Japan
| | - Sally Danno
- Graduate School of Medicine, Kobe University, Kobe, 650-0017, Japan
| | - Takako Hirata
- Department of Fundamental Biosciences, Shiga University of Medical Science, Seta-Tsukinowa-cho Otsu, Shiga, 520-2192, Japan
| | - Kazuhiko Matsuo
- Division of Chemotherapy, Kindai University School of Pharmacy, Kowakae, Higashi-Osaka, 577-8502, Japan
| | - Takashi Nakayama
- Division of Chemotherapy, Kindai University School of Pharmacy, Kowakae, Higashi-Osaka, 577-8502, Japan
| | - Ryosuke Satoh
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kindai University, 3-4-1, Kowakae, Higashi-Osaka, 577-8502, Japan
| | - Reiko Sugiura
- Laboratory of Molecular Pharmacogenomics, School of Pharmaceutical Sciences, Kindai University, 3-4-1, Kowakae, Higashi-Osaka, 577-8502, Japan
| | - Manabu Abe
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata, 951-8585, Japan
| | - Kenji Sakimura
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata, 951-8585, Japan
| | - Shigeharu Wakana
- Japan Mouse Clinic, RIKEN BioResource Center, 3-1-1 Koyadai, Tsukuba-shi, Ibaraki, 305-0074, Japan
| | - Hiroyuki Ohsaki
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma, Kobe, Hyogo, 654-0142, Japan
| | - Shingo Kamoshida
- Laboratory of Pathology, Department of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma, Kobe, Hyogo, 654-0142, Japan
| | - Hideyuki Mukai
- Graduate School of Medicine, Kobe University, Kobe, 650-0017, Japan. .,Biosignal Research Center, Kobe University, Kobe, 657-8501, Japan.
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Ookubo T, Inoue Y, Kim D, Ohsaki H, Mashiko Y, Kusakabe M, Sekino M. Characteristics of magnetic probes for identifying sentinel lymph nodes. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2013:5485-8. [PMID: 24110978 DOI: 10.1109/embc.2013.6610791] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The identification of the sentinel lymph nodes that cause tumor metastasis is important in breast cancer therapy. The detection of magnetic fluid accumulating in the lymph nodes using a magnetic probe allows surgeons to identify the lymph nodes. In this study, we carried out numerical simulations and experiments to investigate the sensitivity and basic characteristics of a magnetic probe consisting of a permanent magnet and a small magnetic sensor. The measured magnetic flux density arising from the magnetic fluid agreed well with the numerical results. In addition, the results helped realize an appropriate probe configuration for achieving high sensitivity to magnetic fluid. A prototype probe detected magnetic fluid located 30 mm from the probe head.
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34
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Yamanushi TT, Boyett MR, Yamamoto Y, Ohsaki H, Hirakawa E, Dobrzynski H. Comparison of formaldehyde and methanol fixatives used in the detection of ion channel proteins in isolated rat ventricular myocytes by immunofluorescence labelling and confocal microscopy. Folia Morphol (Warsz) 2015; 74:258-61. [DOI: 10.5603/fm.2015.0041] [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] [Received: 07/23/2014] [Accepted: 10/13/2014] [Indexed: 11/25/2022]
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35
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Tokuhara Y, Morinishi T, Matsunaga T, Ohsaki H, Kushida Y, Haba R, Hirakawa E. Claudin-1, but not claudin-4, exhibits differential expression patterns between well- to moderately-differentiated and poorly-differentiated gastric adenocarcinoma. Oncol Lett 2015; 10:93-98. [PMID: 26170982 DOI: 10.3892/ol.2015.3208] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 04/09/2015] [Indexed: 12/23/2022] Open
Abstract
Claudins are members of a large family of transmembrane proteins, which are essential in the formation of tight junctions and have previously been associated with the process of tumor progression. Studies have reported the aberrant expression of claudin-1 and claudin-4 in numerous types of cancer. The present study aimed to investigate the expression of claudin-1 and claudin-4 in gastric adenocarcinoma tissue. Surgically resected gastric adenocarcinoma tissue specimens were obtained from 94 patients. Protein expression levels of claudin-1 and claudin-4 were determined using immunohistochemical staining; the association between claudin-1 or claudin-4 expression and various clinicopathological parameters were then analyzed. In gastric adenocarcinoma specimens, the expression rates of claudin-1 and claudin-4 were 43.6 and 87.2%, respectively. Claudin-1 expression demonstrated a significant correlation with histological type (P<0.01) and was significantly higher in well- to moderately-differentiated gastric adenocarcinomas compared with poorly-differentiated tumors. However, no correlation was observed between claudin-4 expression in adenocarcinoma and clinicopathological parameters. In conclusion, downregulation of claudin-1 expression in poorly-differentiated gastric adenocarcinoma may be involved in the biological transformation of tumors. The present findings suggested that claudin-1 may be an important protein associated with histological type and therefore may have potential for use as a prognostic marker for gastric adenocarcinoma. Further studies are required to elucidate the precise mechanism of claudin expression and its involvement in tumor progression.
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Affiliation(s)
- Yasunori Tokuhara
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Kagawa 761-0123, Japan ; Group of Neurobiology, Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Tatsuya Morinishi
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Kagawa 761-0123, Japan
| | - Toru Matsunaga
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Hiroyuki Ohsaki
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime 791-2101, Japan
| | - Yoshio Kushida
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Reiji Haba
- Department of Diagnostic Pathology, University Hospital, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
| | - Eiichiro Hirakawa
- Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Kagawa 761-0123, Japan
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Ohsaki H, Sofue T, Kawakami K, Nishijima Y, Hara T, Matsunaga T, Kushida Y, Haba R, Shigematsu Y, Irino S, Norimatsu Y. WT1 immunoenzyme staining using SurePath™processed urine cytology helps to detect kidney disease. Cytopathology 2015; 27:43-9. [DOI: 10.1111/cyt.12227] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2014] [Indexed: 12/27/2022]
Affiliation(s)
- H. Ohsaki
- Department of Medical Technology; Ehime Prefectural University of Health Sciences; Ehime Japan
| | - T. Sofue
- Department of Cardiorenal and Cerebrovascular Medicine; Faculty of Medicine; Kagawa University; Kagawa Japan
| | - K. Kawakami
- Department of Cardiorenal and Cerebrovascular Medicine; Faculty of Medicine; Kagawa University; Kagawa Japan
| | - Y. Nishijima
- Department of Cardiorenal and Cerebrovascular Medicine; Faculty of Medicine; Kagawa University; Kagawa Japan
| | - T. Hara
- Department of Cardiorenal and Cerebrovascular Medicine; Faculty of Medicine; Kagawa University; Kagawa Japan
| | - T. Matsunaga
- Department of Diagnostic Pathology; Faculty of Medicine; University Hospital; Kagawa University; Kagawa Japan
| | - Y. Kushida
- Department of Diagnostic Pathology; Faculty of Medicine; University Hospital; Kagawa University; Kagawa Japan
| | - R. Haba
- Department of Diagnostic Pathology; Faculty of Medicine; University Hospital; Kagawa University; Kagawa Japan
| | - Y. Shigematsu
- Department of Clinical Laboratory; Shigei Medical Research Hospital; Okayama Japan
| | - S. Irino
- Department of Nursing; Ehime Prefectural University of Health Sciences; Ehime Japan
| | - Y. Norimatsu
- Department of Medical Technology; Ehime Prefectural University of Health Sciences; Ehime Japan
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Sekino M, Ohsaki H, Takiyama Y, Yamamoto K, Matsuzaki T, Yasumuro Y, Nishikawa A, Maruo T, Hosomi K, Saitoh Y. Eccentric figure-eight coils for transcranial magnetic stimulation. Bioelectromagnetics 2014; 36:55-65. [DOI: 10.1002/bem.21886] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 09/26/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Masaki Sekino
- Department of Electrical Engineering and Information Systems; Graduate School of Engineering; University of Tokyo; Tokyo Japan
- Department of Neuromodulation and Neurosurgery; Graduate School of Medicine; Osaka University; Suita Japan
| | - Hiroyuki Ohsaki
- Department of Electrical Engineering and Information Systems; Graduate School of Engineering; University of Tokyo; Tokyo Japan
- Department of Advanced Energy; Graduate School of Frontier Sciences; University of Tokyo; Kashiwa Japan
| | - Yoshihiro Takiyama
- Department of Electrical Engineering and Information Systems; Graduate School of Engineering; University of Tokyo; Tokyo Japan
| | - Keita Yamamoto
- Department of Electrical Engineering and Information Systems; Graduate School of Engineering; University of Tokyo; Tokyo Japan
| | - Taiga Matsuzaki
- Department of Neuromodulation and Neurosurgery; Graduate School of Medicine; Osaka University; Suita Japan
- Home Healthcare Research and Development Planning Department; Teijin Pharma Limited; Tokyo Japan
| | - Yoshihiro Yasumuro
- Department of Neuromodulation and Neurosurgery; Graduate School of Medicine; Osaka University; Suita Japan
- Department of Civil, Environmental and Applied System Engineering; Faculty of Environmental Urban Engineering, Kansai University; Suita Japan
| | - Atsushi Nishikawa
- Department of Neuromodulation and Neurosurgery; Graduate School of Medicine; Osaka University; Suita Japan
- Bioengineering Course; Division of Mechanical Engineering and Robotics; Faculty of Textile Science and Technology; Shinshu University; Ueda Japan
| | - Tomoyuki Maruo
- Department of Neuromodulation and Neurosurgery; Graduate School of Medicine; Osaka University; Suita Japan
| | - Koichi Hosomi
- Department of Neuromodulation and Neurosurgery; Graduate School of Medicine; Osaka University; Suita Japan
| | - Youichi Saitoh
- Department of Neuromodulation and Neurosurgery; Graduate School of Medicine; Osaka University; Suita Japan
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Kitada K, Nakano D, Ohsaki H, Hitomi H, Minamino T, Yatabe J, Felder RA, Mori H, Masaki T, Kobori H, Nishiyama A. Hyperglycemia causes cellular senescence via a SGLT2- and p21-dependent pathway in proximal tubules in the early stage of diabetic nephropathy. J Diabetes Complications 2014; 28:604-11. [PMID: 24996978 PMCID: PMC4153757 DOI: 10.1016/j.jdiacomp.2014.05.010] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 05/18/2014] [Accepted: 05/25/2014] [Indexed: 02/07/2023]
Abstract
AIMS Kidney cells in patients with diabetic nephropathy are reported to be senescent. However, the mechanisms that regulate cellular senescence in the diabetic kidney are still unknown. In the present study, we evaluated the contribution of high glucose to renal cell senescence in streptozotocin (STZ)-induced diabetic mice. METHODS Non-diabetic and streptozotocin (STZ, 10mgkg(-1)day(-1) for 7days, i.p.)-induced type 1 diabetic C57BL/6J mice and cultured human proximal tubular cells were used in this study. RESULTS Hyperglycemia dramatically increased the renal expression of p21 but not other CDK inhibitors such as p16 and p27 at 4weeks after STZ injection. These changes were accompanied by an increase in senescence-associated β-galactosidase staining in tubular epithelial cells. Administration of insulin at doses that maintained normoglycemia or mild hypoglycemia suppressed the changes induced by STZ. Insulin did not affect the senescent markers in non-diabetic mice. Exposure of cultured human proximal tubular cells to 25mmol/L, but not 8mmol/L, glucose medium increased the expression of senescence markers, which was suppressed by knock-down of p21 or sodium glucose cotransporter (SGLT) 2. CONCLUSIONS These results suggest that hyperglycemia causes tubular senescence via a SGLT2- and p21-dependent pathway in the type 1 diabetic kidney.
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MESH Headings
- Animals
- Cells, Cultured
- Cellular Senescence/genetics
- Cyclin-Dependent Kinase Inhibitor p21/physiology
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/physiopathology
- Diabetes Mellitus, Type 1/complications
- Diabetes Mellitus, Type 1/genetics
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/physiopathology
- Diabetic Nephropathies/complications
- Diabetic Nephropathies/genetics
- Diabetic Nephropathies/metabolism
- Diabetic Nephropathies/physiopathology
- Disease Progression
- Hyperglycemia/complications
- Hyperglycemia/genetics
- Hyperglycemia/physiopathology
- Kidney Tubules, Proximal/metabolism
- Kidney Tubules, Proximal/physiopathology
- Male
- Mice
- Mice, Inbred C57BL
- Signal Transduction/physiology
- Sodium-Glucose Transporter 2/physiology
- Streptozocin
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Affiliation(s)
- Kento Kitada
- Department of Pharmacology, Kagawa University, Kagawa, Japan.
| | - Daisuke Nakano
- Department of Pharmacology, Kagawa University, Kagawa, Japan
| | - Hiroyuki Ohsaki
- Faculty of Clinical Examination, Ehime Prefectural University Of Health Sciences, Ehime, Japan
| | - Hirofumi Hitomi
- Department of Pharmacology, Kagawa University, Kagawa, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Junichi Yatabe
- Department of Pharmacology, Fukushima Medical University, Fukushima, Japan
| | - Robin A Felder
- Department of Pathology, University of Virginia, Charlottesville, VA, USA
| | - Hirohito Mori
- Department of Gastroenterology, Kagawa University, Kagawa, Japan
| | - Tsutomu Masaki
- Department of Gastroenterology, Kagawa University, Kagawa, Japan
| | - Hiroyuki Kobori
- Department of Pharmacology, Kagawa University, Kagawa, Japan
| | - Akira Nishiyama
- Department of Pharmacology, Kagawa University, Kagawa, Japan
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Norimatsu Y, Ohsaki H, Masuno H, Kagawa A, Teramoto N, Kobayashi TK. Efficacy of CytoLyt® hemolytic action on ThinPrep® LBC using cultured osteosarcoma cell line LM8. Acta Cytol 2014; 58:76-82. [PMID: 24157542 DOI: 10.1159/000354960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 07/29/2013] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The removal of blood components is necessary to improve the quality of the liquid-based cytology (LBC) preparations. In ThinPrep® (TP) samples a cell suspension in a methanol-based fixative undergoes a vacuum filtration method, whereas in SurePath™ (SP) samples a cell suspension in an ethanol-based fixative is processed through a density gradient centrifugation system prior to gravity deposition of the specimen onto a glass slide. We compared the cyto-architectural features for the cytologic diagnosis of endometrial adenocarcinoma using parallel TP and SP preparations in a previous publication. STUDY DESIGN We performed our study on LM8 cells (a cultured osteosarcoma cell line). LM8 cells at a concentration of 1.25 × 10(3) cell/cm(2) were seeded on a 35-mm plate in culture medium, which contained 10% fetal bovine serum (FBS), 100 units/ml penicillin, and 100 μ/ml streptomycin in Dulbecco's modified Eagle's medium (DMEM), and aliquots of the cell suspension obtained in this way were compared after the addition of a hemolytic agent, i.e. Cytolyt® (CyL). LBC preparations were then obtained on cell suspensions treated with CyL after different time intervals of hemolysis. RESULTS Treatment with CyL did not alter the cellularity of the preparation, but reduction of the nuclear area and a tendency towards nuclear chromatin condensation with a subsequent higher brightness were found. Because CyL is a 25% methanol-buffered solution, its alcoholic concentration is low; it was our impression that, while its fixative effect was weak, its hemolytic effect was high. Water influx or efflux through the cell membrane is controlled by osmotic pressure changes induced by the buffer solution in the CyL solution. While CyL was not shown to alter the cell shape, nuclear shrinkage was thought to be probably due to the increasing cell dehydration caused by longer exposure intervals to methanol. CONCLUSION This study has allowed us to make significant observations on the hemolytic properties of CyL, and on its combined effects with PreservCyt on the cytomorphology of cells suspensions.
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Affiliation(s)
- Yoshiaki Norimatsu
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime, Japan
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Abstract
Research on link prediction for social networks has been actively pursued. In link prediction for a given social network obtained from time-windowed observation, new link formation in the network is predicted from the topology of the obtained network. In contrast, recent advances in sensing technology have made it possible to obtain face-to-face behavioral networks, which are social networks representing face-to-face interactions among people. However, the effectiveness of link prediction techniques for face-to-face behavioral networks has not yet been explored in depth. To clarify this point, here we investigate the accuracy of conventional link prediction techniques for networks obtained from the history of face-to-face interactions among participants at an academic conference. Our findings were (1) that conventional link prediction techniques predict new link formation with a precision of 0.30–0.45 and a recall of 0.10–0.20, (2) that prolonged observation of social networks often degrades the prediction accuracy, (3) that the proposed decaying weight method leads to higher prediction accuracy than can be achieved by observing all records of communication and simply using them unmodified, and (4) that the prediction accuracy for face-to-face behavioral networks is relatively high compared to that for non-social networks, but not as high as for other types of social networks.
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Affiliation(s)
- Sho Tsugawa
- Faculty of Engineering, Information and Systems, University of Tsukuba, Ibaraki, Japan
- * E-mail:
| | - Hiroyuki Ohsaki
- School of Science and Technology, Kwansei Gakuin University, Hyogo, Japan
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Ohsaki H, Shigematsu Y, Irino S, Hirakawa E, Norimatsu Y. Comparison of two liquid preservatives for SurePath™ slides prepared from voided urine. Diagn Cytopathol 2013; 42:423-7. [DOI: 10.1002/dc.23061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 09/05/2013] [Accepted: 10/10/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Hiroyuki Ohsaki
- Department of Medical Technology; Ehime Prefectural University of Health Sciences; Ehime Japan
| | - Yumie Shigematsu
- Department of Clinical Laboratory; Shigei Hospital; Okayama Japan
| | - Satoshi Irino
- Department of Nursing; Ehime Prefectural University of Health Sciences; Ehime Japan
| | - Eiichiro Hirakawa
- Laboratory of Pathology; Department of Medical Technology; Kagawa Prefectural University of Health Sciences; Japan
| | - Yoshiaki Norimatsu
- Department of Medical Technology; Ehime Prefectural University of Health Sciences; Ehime Japan
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Kuribayashi H, Sekino M, Minowa T, Maitani Y, Ohsaki H, Tsushima S, Hirai S, Ueda M, Katayama Y. Accuracy of equilibrium magnetization mapping in sliced two-dimensional spoiled gradient-recalled echo pulse sequence with variable flip angle. J Magn Reson Imaging 2013; 38:1245-50. [DOI: 10.1002/jmri.24023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2012] [Accepted: 12/07/2012] [Indexed: 11/08/2022] Open
Affiliation(s)
| | - Masaki Sekino
- School of Engineering; University of Tokyo; Chiba Japan
| | - Takuya Minowa
- Institute of Medicinal Chemistry; Hoshi University; Tokyo Japan
| | - Yoshie Maitani
- Institute of Medicinal Chemistry; Hoshi University; Tokyo Japan
| | | | - Shohji Tsushima
- Research Center for Carbon Recycling and Energy; Tokyo Institute of Technology; Tokyo Japan
| | - Shuichiro Hirai
- Research Center for Carbon Recycling and Energy; Tokyo Institute of Technology; Tokyo Japan
| | - Masayuki Ueda
- Department of Internal Medicine; Nippon Medical School; Tokyo Japan
| | - Yasuo Katayama
- Department of Internal Medicine; Nippon Medical School; Tokyo Japan
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Nishioka S, Nakano D, Kitada K, Ohsaki H, Sofue T, Kohno M, Nishiyama A. Abstract 284: P21 is Essential for the Beneficial Effects of Renal Ischemic Preconditioning in Ischemic Acute Kidney Injury. Hypertension 2013. [DOI: 10.1161/hyp.62.suppl_1.a284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We previously reported that p21, a cell cycle regulator, plays important roles in chronic hypertensive renal injury. However, the roles of renal p21 in acute kidney injury, a life-threatening disease that can occur independently of the pathological background of patients (whether renal p21 is up-regulated or not), have not been fully clarified yet. In the present study, we evaluated the role of p21 in acute kidney injury and the effects of ischemic preconditioning (IPC). The mice lacking functional p21 (p21-KO) and its wild-type control underwent renal ischemia followed by reperfusion (I/R) with or without ischemic preconditioning. IPC attenuated I/R injury in wild-type mice, but not in p21-KO mice. Moreover, IPC increased the renal expression of p21 prior to I/R compared with sham surgery (p21/β-actin, sham: 1.00±0.18 fold, IPC: 4.12±0.32 fold, n=6, p<0.01). Immunohistochemisty (IHC) for p21 showed that there was an increase in the number of p21-positive tubular cells in mice that underwent I/R with and without IPC, and that the p21 immunoreactivity was increased in the nuclei of tubular cells, suggesting the effects on cell cycle. IPC decreased the number of proliferating tubular cells before I/R (0.24±0.11 fold vs. sham group, p<0.01) and increased it at 24 h after I/R (1.66±0.03 fold vs. sham group, p<0.01) in the kidney of wild-type mice. In p21-KO mice, IPC did not change the number of proliferating cells before I/R (0.99±0.10 fold, vs. sham group), and decreased it after I/R (0.53±0.08 fold, vs. sham group, p<0.01). Flow cytometry showed that IPC increased the number of cells in the G1 phase of cell cycle before I/R compared with sham surgery. Additionally, intravital imaging in combination with the mice that express mKO2, a fluorescent protein, at G1 phase of cell cycle showed that IPC increased the number of mKO2-positive cells in the proximal tubules. In conclusion, renal p21 is essential for the beneficial effects of renal IPC. Transient cell cycle arrest by IPC through a p21-dependent pathway seems to be important for recovering tubular cell proliferation after I/R.
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Kawanishi N, Norimatsu Y, Ohsaki H, Yuminamochi T, Katoh R, Okusaki K, Sato Y, Kobayashi TK. Diagnosis of pseudopapillary variant of medullary thyroid carcinoma by fine-needle aspiration cytology. Diagn Cytopathol 2013; 42:823-6. [PMID: 23894022 DOI: 10.1002/dc.23020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 05/01/2013] [Accepted: 05/15/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Namiki Kawanishi
- Department of Clinical Laboratory, Mihara Medical Associations Hospital, Hiroshima, Japan
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Norimatsu Y, Sakamoto S, Ohsaki H, Ozaki S, Yokoyama T, Shimizu K, Yanoh K, Akiyama M, Bamba M, Kobayashi TK. Cytologic features of the endometrial adenocarcinoma: Comparison of ThinPrep and BD surepath preparations. Diagn Cytopathol 2013; 41:673-81. [DOI: 10.1002/dc.22921] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 08/03/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Yoshiaki Norimatsu
- Department of Medical Technology; Ehime Prefectural University of Health Sciences; Ehime; Japan
| | - Shingo Sakamoto
- Department of Pathology; Matsuyama Red Cross Hospital; Ehime; Japan
| | - Hiroyuki Ohsaki
- Department of Medical Technology; Ehime Prefectural University of Health Sciences; Ehime; Japan
| | - Satoru Ozaki
- Department of Pathology; Kanazawa University Hospital; Ishikawa; Japan
| | - Toshiro Yokoyama
- Department of Pathology; Kurume University Medical Center; Fukuoka; Japan
| | - Keiko Shimizu
- Department of Pathology; Saiseikai Noe Hospital; Imperial Gift Foundation Inc.; Osaka; Japan
| | - Kenji Yanoh
- Department of Gynaecology; Suzuka General Hospital; Mie; Japan
| | - Minoru Akiyama
- Department of Obstetrics and Gynecology; Saiseikai Shiga Hospital; Imperial Gift Foundation Inc.; Shiga; Japan
| | - Masamichi Bamba
- Department of Pathology; Saiseikai Shiga Hospital; Imperial Gift Foundation Inc.; Shiga; Japan
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Abe Y, Sekino M, Terazono Y, Ohsaki H, Fukazawa Y, Sakai S, Yawo H, Hisatsune T. Opto-fMRI analysis for exploring the neuronal connectivity of the hippocampal formation in rats. Neurosci Res 2012; 74:248-55. [PMID: 22982343 DOI: 10.1016/j.neures.2012.08.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 08/21/2012] [Accepted: 08/28/2012] [Indexed: 02/08/2023]
Abstract
In recent years, optical stimulation of neurons that bear a light-gated cation channel, "Optogenetics", has opened a new avenue for exploring neuronal connectivity of the nervous system. In this study, we applied a technique, "Opto-fMRI", which combined optogenetics with blood oxygenation level-dependent (BOLD) functional MRI (fMRI), for examining the neuronal connectivity of the hippocampal formation in rats. Although the hippocampal formation is very important for memory formation and retrieval, there is little information on its neuronal connectivity, especially on its longitudinal axis of connection. For this purpose, we utilized a transgenic rat strain, expressing the light-gated cation channel channelrhodopsin-2 (ChR2) under the regulation of the Thy1.2 promoter which permits the expression of the integrated gene in neurons. After optical stimulation targeting the dentate gyrus of the transgenic rat, we detected BOLD response of not only the dentate gyrus (DG) but also at the CA3 area. In addition, we detected the longitudinal-axis activation of the hippocampus after optical stimulation. Our study suggests that Opto-fMRI could be a tool for exploring the neuronal connectivity of the hippocampal formation, to understand the neural basis of memory formation and retrieval.
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Affiliation(s)
- Yoshifumi Abe
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
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Nakano D, Kitada K, Ohsaki H, Hitomi H, Kobori H, Imanishi M, Nishiyama A. Abstract 53: Telmisartan But Not Tempol Improves the Already Established Renal Cell Senescence in Type 2 Diabetic Rats. Hypertension 2012. [DOI: 10.1161/hyp.60.suppl_1.a53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We previously reported that hyperglycemia induces renal tubular cell senescence in type 1 diabetic animals. In the present study, we evaluated the tubular cell senescence in type 2 diabetic animals and investigated whether the renal cell senescence could regress in response to treatment with a reno-protective dosage of an angiotensin receptor blocker, telmisartan (10 mg/kg/day). Otsuka Long-Evans Tokushima Fatty (OLETF) rats, a model of spontaneously developed type 2 diabetes, showed an age-dependent increase in renal cell senescence analyzed by p21 expression (6 weeks old: 1.3±0.3 fold, 22 weeks old: 2.6±0.3 fold, vs. age-matched lean control rats, n=8, respectively) and senescence-associated β galactosidase (SABG) staining. OLETF rats were separated into the following 3 groups at 22 weeks of age and were kept under treatment until 34 weeks of age (n=10 per group): 1) un-treated, 2) telmisartan, and 3) tempol (an anti-oxidant, 3 mmol/L in drinking water). Neither treatment affected the blood glucose levels. Telmisartan, but not tempol, markedly reduced SABG staining by 34 weeks of age compared with that at 22 weeks of age or with that of age-matched un-treated rats. Increase in the expression of p21 was significantly smaller in telmisartan-treated rats (1.3±0.2 fold vs. lean rats) than in un-treated rats (2.9±0.2 fold, p<0.01) and tempol-treated rats (3.0±0.2 fold, p<0.01). Un-treated OLETF rats showed a greater intrarenal expression of TNF-α than lean rats, and the increase was suppressed by telmisartan. On the other hand, ED-1-positive macrophages rarely colocalized with p21-positive tubules at any stage of diabetes in any treated groups. These results indicate that type 2 diabetes prompts the renal cell senescence and that accumulation of renal senescent cells is reversible. Macrophage infiltration seems unlikely to contribute to the reduction of senescent cells. In addition, while there are many reports showing the involvement of oxidative stress in cell senescence, anti-oxidant tempol did not affect the established cell senescence.
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Kato T, Sekino M, Matsuzaki T, Nishikawa A, Saitoh Y, Ohsaki H. Fabrication of a prototype magnetic stimulator equipped with eccentric spiral coils. Annu Int Conf IEEE Eng Med Biol Soc 2012; 2011:1985-8. [PMID: 22254723 DOI: 10.1109/iembs.2011.6090559] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The development of compact magnetic stimulators will enable us to treat some intractable neurological diseases at one's home. In this study, we propose eccentric spiral coils which induce sufficient eddy currents in the brain at lower driving currents for the stimulator circuit. Numerical simulations based on the finite element method showed the advantages of the proposed design. A prototype coil and driving circuit were fabricated. The coil generated a magnetic field of 1.41 T at the maximum output level of stimulator.
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Affiliation(s)
- Takuya Kato
- Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan.
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Sofue T, Kiyomoto H, Kobori H, Urushihara M, Nishijima Y, Kaifu K, Hara T, Matsumoto S, Ichimura A, Ohsaki H, Hitomi H, Kawachi H, Hayden MR, Whaley-Connell A, Sowers JR, Ito S, Kohno M, Nishiyama A. Early treatment with olmesartan prevents juxtamedullary glomerular podocyte injury and the onset of microalbuminuria in type 2 diabetic rats. Am J Hypertens 2012; 25:604-11. [PMID: 22318512 PMCID: PMC3328599 DOI: 10.1038/ajh.2012.1] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Studies were performed to determine if early treatment with an angiotensin II (Ang II) receptor blocker (ARB), olmesartan, prevents the onset of microalbuminuria by attenuating glomerular podocyte injury in Otsuka Long-Evans Tokushima Fatty (OLETF) rats with type 2 diabetes mellitus. METHODS OLETF rats were treated with either a vehicle, olmesartan (10 mg/kg/day) or a combination of nonspecific vasodilators (hydralazine 15 mg/kg/day, hydrochlorothiazide 6 mg/kg/day, and reserpine 0.3 mg/kg/day; HHR) from the age of 7-25 weeks. RESULTS OLETF rats were hypertensive and had microalbuminuria from 9 weeks of age. At 15 weeks, OLETF rats had higher Ang II levels in the kidney, larger glomerular desmin-staining areas (an index of podocyte injury), and lower gene expression of nephrin in juxtamedullary glomeruli, than nondiabetic Long-Evans Tokushima Otsuka (LETO) rats. At 25 weeks, OLETF rats showed overt albuminuria, and higher levels of Ang II in the kidney and larger glomerular desmin-staining areas in superficial and juxtamedullary glomeruli compared to LETO rats. Reductions in mRNA levels of nephrin were also observed in superficial and juxtamedullary glomeruli. Although olmesartan did not affect glucose metabolism, it decreased blood pressure and prevented the renal changes in OLETF rats. HHR treatment also reduced blood pressure, but did not affect the renal parameters. CONCLUSIONS This study demonstrated that podocyte injury occurs in juxtamedullary glomeruli prior to superficial glomeruli in type 2 diabetic rats with microalbuminuria. Early treatment with an ARB may prevent the onset of albuminuria through its protective effects on juxtamedullary glomerular podocytes.
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Norimatsu Y, Kawai M, Kamimori A, Yuminamochi T, Ohsaki H, Yanoh K, Kawanishi N, Kobayashi TK. Endometrial glandular and stromal breakdown, Part 4: Cytomorphology of "condensed cluster of stromal cells including a light green body". Diagn Cytopathol 2012; 40:204-9. [PMID: 22334522 DOI: 10.1002/dc.21532] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Accepted: 07/30/2010] [Indexed: 11/08/2022]
Abstract
This study was undertaken to clarify the origin of the chromophilic substance that stained in light green [light green body (LGB)] was observed in the condensed cluster of stromal cells and in the background of endometrial glandular and stromal breakdown cases. The material consists of cytologic smears of endometrial glandular and stromal breakdown (EGBD) from 58 samples in which a histopathological diagnosis was subsequently obtained by endometrial curettage. The following parameters were examined. (1) The occurrence and number of a LGB. As for the "condensed cluster of stromal cells," "condensed cluster of stromal cells including LGB" and "LBG in background," it was observed with all fields on one slide per case. When it was observed more than one in a preparation, the occurrence was determined and the number was also calculated. (2) Immunostaining of paraffin-embedded tissue sections and cytologic preparations. 1 The occurrence of "condensed cluster of stromal cells," "condensed cluster of stromal cells including LGB" and "LGB in background" was 100%, 44.8% and 91.4%, respectively. The number of "condensed cluster of stromal cells," "condensed cluster of stromal cells including LGB" and "LGB in background" was 21.2, 2.0 and 4.0, respectively. 2 When histological sections from paraffin-embedded tissue were tested by immunocytochemistry, "LGB" stained weakly or negative for fibrinogen, whereas it stained positively for CD31 and factor VIII. In addition, it stained positively for CD42b. 3 When cytologic preparation was tested by immunocytochemistry, "LGB" stained positively for CD31, factor VIII and CD42b. However, as for the fibrinogen, quantitative and qualitative evaluation of the immunocytochemical stain was not feasible due to extensive nonspecific reaction in the whole preparation. The "LGB" in EGBD cases proved to be a thrombus mostly made up by platelets, and it seemed that the recognition of the LGB showed to be a useful cytomorphological criterion for an always more accurate diagnosis of EGBD cases.
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Affiliation(s)
- Yoshiaki Norimatsu
- Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime, Japan
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