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Implementation of high-quality PET ligands with high sensitivity and selectivity for AQP4

Research Project

Project/Area Number 21K07663
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionTokyo Metropolitan Geriatric Hospital and Institute of Gerontology

Principal Investigator

Toyohara Jun  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究部長 (50425659)

Co-Investigator(Kenkyū-buntansha) 森田 光洋  神戸大学, 理学研究科, 准教授 (50297602)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsアクアポリン / PET / 脳 / 放射性薬剤
Outline of Research at the Start

アクアポリン(AQP)は水分子のみを通過させる膜蛋白質で、哺乳類の脳では、主にAQP4が発現している。AQP4は、脳脊髄液の循環に関与しているとされており、脳浮腫、精神疾患、炎症性脳疾患、神経変性疾患に対する新薬開発の新たな分子標的として注目されている。AQP4の高次脳機能における役割の解明や創薬へ向けては、AQP4に対するより深い理解が必要であり、AQP4の機能を計測できるPETイメージング剤の開発が望まれている。本研究では、最新の標識化学の知見を活用して、「AQP4に対する高感度かつ選択的な高品質のPET薬剤の実用化」を目指す。

Outline of Final Research Achievements

In this study, we investigated the improvement of the labeling method of [11C]TGN-020 for AQP. In the method using the 11C-carboxylation reaction of boronate ester using a Cu(I) catalyst, [11C]nicotinic acid was obtained with a yield of 30% in the first step, but the reaction reagent in the first step inhibited the subsequent reaction of amide bond formation. We tried to purify the intermediate, but inhibition of the reaction was unavoidable. For the amide bond formation reaction, the target product was quantitatively obtained by using DMT-MM as the condensation reagent, so the first reaction was changed using the butyl lithium method, and an external module for the extremely low temperature reaction was designed and installed in the automated synthesis apparatus.

Academic Significance and Societal Importance of the Research Achievements

AQP4に対するPET薬剤として[11C]TGN-020が提案されたが、標識反応において担体であるCO2を添加するため、比放射能が低く、かつ収率が極めて低い(<1%)ため、実用的では無く、単独施設のみの臨床使用に限定されている。申請者はこれに対して、新しい標識合成方法や合成装置の改良を提案し、[11C]TGN-020について高比放射能化によるAQP4の検出感度の向上と放射化学的収率の増大により、サイクロトロン保有施設での利用促進に努力した。研究成果は道半ばではあるが、新規標識合成法の問題点や改良点が明らかとなり、実用化を目指した合成装置の改良も達成できた。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (68 results)

All 2024 2023 2022 2021

All Journal Article (18 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 18 results,  Open Access: 10 results) Presentation (50 results) (of which Int'l Joint Research: 14 results,  Invited: 5 results)

  • [Journal Article] Phantom and clinical evaluation of the Bayesian penalised likelihood reconstruction algorithm Q.Clear without PSF correction in amyloid PET images2024

    • Author(s)
      Wagatsuma Kei、Sakata Muneyuki、Miwa Kenta、Hamano Yumi、Kawakami Hirofumi、Kamitaka Yuto、Yamao Tensho、Miyaji Noriaki、Ishibashi Kenji、Tago Tetsuro、Toyohara Jun、Ishii Kenji
    • Journal Title

      EJNMMI Physics

      Volume: 11 Issue: 1

    • DOI

      10.1186/s40658-024-00641-3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Preclinical validation of a novel brain-penetrant PET ligand for visualization of histone deacetylase 6: a potential imaging target for neurodegenerative diseases2024

    • Author(s)
      Tago Tetsuro、Sakata Muneyuki、Kanazawa Masakatsu、Yamamoto Shigeyuki、Ishii Kenji、Toyohara Jun
    • Journal Title

      European Journal of Nuclear Medicine and Molecular Imaging

      Volume: - Issue: 8 Pages: 2193-2203

    • DOI

      10.1007/s00259-024-06666-1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pitfalls of Amyloid-Beta PET2024

    • Author(s)
      Ishibashi Kenji、Kurihara Masanori、Toyohara Jun、Ishii Kenji、Iwata Atsushi
    • Journal Title

      Clinical Nuclear Medicine

      Volume: 49 Issue: 4 Pages: 319-321

    • DOI

      10.1097/rlu.0000000000005097

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A gold-complex initiated functionalization of biologically active polyphenols applied to a <sup>18</sup>F-labeled chemical probe2023

    • Author(s)
      Liu Ziyun、Fukagawa Yuki、Yamano Masaharu、Tago Tetsuro、Iwai Kumiko、Hirano Keiichi、Kumazoe Motofumi、Tachibana Hirofumi、Toyohara Jun、Tanaka Hiroshi
    • Journal Title

      Organic &amp; Biomolecular Chemistry

      Volume: 21 Issue: 29 Pages: 5990-5996

    • DOI

      10.1039/d3ob00856h

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Radiosynthesis and <i>in Vivo</i> and <i>ex Vivo</i> Evaluation of Isomeric [<sup>11</sup>C]methoxy Analogs of Nimesulide as Brain Cyclooxygenase-2-Targeted Imaging Agents2022

    • Author(s)
      Yamamoto Yumi、Tago Tetsuro、Toyohara Jun、Saito Yohei、Yamamoto Fumihiko
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 45 Issue: 1 Pages: 94-103

    • DOI

      10.1248/bpb.b21-00608

    • NAID

      130008139158

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2022-01-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reversal of spatial memory impairment by phosphodiesterase 3 inhibitor cilostazol is associated with reduced neuroinflammation and increased cerebral glucose uptake in aged male mice2022

    • Author(s)
      Yanai Shuichi、Tago Tetsuro、Toyohara Jun、Arasaki Tomoko、Endo Shogo
    • Journal Title

      Frontiers in Pharmacology

      Volume: 13 Pages: 1031637-1031637

    • DOI

      10.3389/fphar.2022.1031637

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Highlight selection of radiochemistry and radiopharmacy developments by editorial board2022

    • Author(s)
      Toyohara Jun、Al-Qahtani Mohammed、Huang Ya-Yao、Cazzola Emiliano、Todde Sergio、Furumoto Shozo、Mikolajczak Renata、Decristoforo Clemens、Gillings Nic、Yang Min、Reilly Raymond、Duatti Adriano、Denkova Antonia、Schirrmacher Ralf、Carlucci Giuseppe、Seimbille Yann、Liu Zhaofei、Ellis Beverley、Cornelissen Bart T、他2名
    • Journal Title

      EJNMMI Radiopharmacy and Chemistry

      Volume: 7 Issue: 1

    • DOI

      10.1186/s41181-022-00177-w

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Distribution Pattern of the Monoamine Oxidase B Ligand, 18F-THK5351, in the Healthy Brain2022

    • Author(s)
      Ishibashi Kenji、Miura Yoshiharu、Tago Tetsuro、Toyohara Jun、Higashihara Mana、Iwata Atsushi、Ishii Kenji
    • Journal Title

      Clinical Nuclear Medicine

      Volume: 47 Issue: 7 Pages: e489-e495

    • DOI

      10.1097/rlu.0000000000004272

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Possibility of Enlargement in Left Medial Temporal Areas Against Cerebral Amyloid Deposition Observed During Preclinical Stage2022

    • Author(s)
      Imabayashi Etsuko、Ishii Kenji、Toyohara Jun、Wagatsuma Kei、Sakata Muneyuki、Tago Tetsuro、Ishibashi Kenji、Kojima Narumi、Kohda Noriyuki、Tokumaru Aya M.、Kim Hunkyung
    • Journal Title

      Frontiers in Aging Neuroscience

      Volume: 14

    • DOI

      10.3389/fnagi.2022.847094

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Determination of optimal regularization factor in Bayesian penalized likelihood reconstruction of brain PET images using [18F]FDG and [11C]PiB2022

    • Author(s)
      Wagatsuma Kei、Miwa Kenta、Kamitaka Yuto、Koike Emiya、Yamao Tensho、Yoshii Tokiya、Kobayashi Rinya、Nezu Shogo、Sugamata Yuta、Miyaji Noriaki、Imabayashi Etsuko、Ishibashi Kenji、Toyohara Jun、Ishii Kenji
    • Journal Title

      Medical Physics

      Volume: - Issue: 5 Pages: 2995-3005

    • DOI

      10.1002/mp.15593

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Adenosine A2A Receptor Occupancy by Caffeine After Coffee Intake in Parkinson's Disease2022

    • Author(s)
      Ishibashi Kenji、Miura Yoshiharu、Wagatsuma Kei、Toyohara Jun、Ishiwata Kiichi、Ishii Kenji
    • Journal Title

      Movement Disorders

      Volume: 37 Issue: 4 Pages: 853-857

    • DOI

      10.1002/mds.28897

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Test-retest reproducibility of cerebral adenosine A2A receptor quantification using [11C]preladenant2021

    • Author(s)
      Toyohara Jun、Sakata Muneyuki、Wagatsuma Kei、Tago Tetsuro、Ishibashi Kenji、Ishii Kenji、Elsinga Philip、Ishiwata Kiichi
    • Journal Title

      Annals of Nuclear Medicine

      Volume: 36 Issue: 1 Pages: 15-23

    • DOI

      10.1007/s12149-021-01678-5

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] First clinical assessment of [18F]MC225, a novel fluorine-18 labelled PET tracer for measuring functional P-glycoprotein at the blood-brain barrier2021

    • Author(s)
      Toyohara Jun、Sakata Muneyuki、Ishibashi Kenji、Mossel Pascalle、Imai Masamichi、Wagatsuma Kei、Tago Tetsuro、Imabayashi Etsuko、Colabufo Nicola A.、Luurtsema Gert、Ishii Kenji
    • Journal Title

      Annals of Nuclear Medicine

      Volume: 35 Issue: 11 Pages: 1240-1252

    • DOI

      10.1007/s12149-021-01666-9

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Correlation of 4'-[methyl-11C]-thiothymidine PET with Ki-67 immunohistochemistry separately in patients with newly diagnosed and recurrent gliomas.2021

    • Author(s)
      Norikane T, Mitamura K, Yamamoto Y, Hatakeyama T, Miyake K, Toyohara J, Nishiyama Y.
    • Journal Title

      Nucl Med Commun.

      Volume: 42 Issue: 12 Pages: 1322-1327

    • DOI

      10.1097/mnm.0000000000001463

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Head-to-head comparison of (R)-[11C]verapamil and [18F]MC225 in non-human primates, tracers for measuring P-glycoprotein function2021

    • Author(s)
      Garcia-Varela Lara、Vallez Garcia David、Aguiar Pablo、Kakiuchi Takeharu、Ohba Hiroyuki、Harada Norihiro、Nishiyama Shingo、Tago Tetsuro、Elsinga Philip H.、Tsukada Hideo、Colabufo Nicola A.、Dierckx Rudi A. J. O.、van Waarde Aren、Toyohara Jun、Boellaard Ronald、Luurtsema Gert
    • Journal Title

      European Journal of Nuclear Medicine and Molecular Imaging

      Volume: 48 Issue: 13 Pages: 4307-4317

    • DOI

      10.1007/s00259-021-05411-2

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evaluation of P-glycoprotein function at the blood-brain barrier using [18F]MC225-PET2021

    • Author(s)
      Mossel Pascalle、Garcia Varela Lara、Arif Wejdan M.、van der Weijden Chris W. J.、Boersma Hendrikus H.、Willemsen Antoon T. M.、Boellaard Ronald、Elsinga Philip H.、Borra Ronald J. H.、Colabufo Nicola A.、Toyohara Jun、de Deyn Peter Paul、Dierckx Rudi A. J. O.、Lammertsma Adriaan A.、Bartels Anna L.、Luurtsema Gert
    • Journal Title

      European Journal of Nuclear Medicine and Molecular Imaging

      Volume: 48 Issue: 12 Pages: 4105-4106

    • DOI

      10.1007/s00259-021-05419-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Correlation of 4′-[methyl-11C]-thiothymidine PET with Gd-enhanced and FLAIR MRI in patients with newly diagnosed glioma2021

    • Author(s)
      Norikane Takashi、Mitamura Katsuya、Yamamoto Yuka、Maeda Yukito、Tanaka Kenichi、Hatakeyama Tetsuhiro、Miyake Keisuke、Toyohara Jun、Nishiyama Yoshihiro
    • Journal Title

      EJNMMI Research

      Volume: 11 Issue: 1 Pages: 42-42

    • DOI

      10.1186/s13550-021-00785-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Efficacy of cell proliferation imaging with 4DST PET/CT for predicting the prognosis of patients with esophageal cancer: a comparison study with FDG PET/CT2021

    • Author(s)
      Hotta Masatoshi、Minamimoto Ryogo、Toyohara Jun、Nohara Kyoko、Nakajima Kazuhiko、Takase Kei、Yamada Kazuhiko
    • Journal Title

      European Journal of Nuclear Medicine and Molecular Imaging

      Volume: 48 Issue: 8 Pages: 2615-2623

    • DOI

      10.1007/s00259-020-05179-x

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] てびき第6版の概要.PET化学 てびき第6版 その1(基礎技術)2024

    • Author(s)
      豊原潤
    • Organizer
      PET化学ワークショップ2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] [11C]Preladenant.PET化学 てびき第6版 その2(神経機能)2024

    • Author(s)
      豊原潤
    • Organizer
      PET化学ワークショップ2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] [18F]MC225.PET化学 てびき第6版 その2(神経機能)2024

    • Author(s)
      豊原潤
    • Organizer
      PET化学ワークショップ2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] [18F]NAV4694.PET化学 てびき第6版 その3(神経病理)2024

    • Author(s)
      豊原潤
    • Organizer
      PET化学ワークショップ2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] [18F]MK6240.PET化学 てびき第6版 その3(神経病理)2024

    • Author(s)
      豊原潤
    • Organizer
      PET化学ワークショップ2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] Fully automated radiosynthesis of [18F]SMBT-1 for clinical use2023

    • Author(s)
      Toyohara J, Tago T, Ishii K.
    • Organizer
      The 25th International Symposium on Rediopharmaceutical Sciences
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimization of the automated radiosynthesis of an 18F-labeled tetrahydroquinoline derivative for brain HDAC6 imaging.2023

    • Author(s)
      Tago T, Toyohara J, Ishii K.
    • Organizer
      The 25th International Symposium on Radiopharmaceutical Sciences
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] パーキンソン病患者におけるコーヒー摂取後のアデノシンA2A受容体占拠率2023

    • Author(s)
      石橋賢士、三浦義治、上高祐人、多胡哲朗、坂田宗之、豊原潤、石井賢二
    • Organizer
      第64回日本神経学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Age-dependent decline of the P-glycoprotein function at the blood-brain barrier: preliminary observation with newly developed PET tracer fluorine-18 labelled MC225.2023

    • Author(s)
      Toyohara J, Sakata M, Ishibashi K, Wagatsuma K, Tago T, Imabayashi E, Ishii K.
    • Organizer
      IAGG Asia/Oceania Regional Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Texture indices extrcted from FLT and 4'-[methyl-11C]thiothymidine (4DST) PET/CT to distinguish tumor grade in newly diagnosed high-grade glioma.2023

    • Author(s)
      Yamamoto Y, Mitamura K, Norikane T, Toyohara J, Nishiyama Y.
    • Organizer
      SNMMI 2023 Annual Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Implementation of amyloid PET in a memory clinic of geriatric hospital revealed characteristics of causative diseases by age.2023

    • Author(s)
      Ishii K, Ishibashi K, Sakata M, Kamitaka Y, Tago T, Kameyama M, Kanemaru K, Murayama S, Iwata A, Toyohara J.
    • Organizer
      Alzheimer's Association International Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PET用脳内ヒストンデアセチラーゼ6イメージングプローブの開発2023

    • Author(s)
      多胡哲朗、豊原潤、石井賢二
    • Organizer
      第11回TOBIRA研究交流フォーラム
    • Related Report
      2023 Annual Research Report
  • [Presentation] PET用HDAC6プローブ[18F]FSW-100の被ばく線量推定と毒性試験2023

    • Author(s)
      多胡哲朗、坂田宗之、豊原潤
    • Organizer
      第63回日本核医学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 脳FDG画像の新旧機種間差補正における機械学習の利用2023

    • Author(s)
      坂田宗之、上高祐人、我妻慧、石橋賢士、多胡哲朗、豊原潤、石井賢二
    • Organizer
      第63回日本核医学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 脳PET臨床計測におけるデータ駆動短時間フレーム体動補正法の利用2023

    • Author(s)
      坂田宗之、上高祐人、甲木晶枝、川上泰史、我妻慧、織田圭一、石橋賢士、多胡哲郎、豊原潤、石井賢二
    • Organizer
      第63回日本核医学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 電子求引性置換基を有するベンゼンスルホン酸エステルを前駆体として用いるネオペンチル18F標識化の検討2023

    • Author(s)
      田中浩士、飯田翔悟、多胡哲郎、多田匡利、河原琉晟、豊原潤
    • Organizer
      第63回日本核医学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 選択的モノアミンオキシゲナーゼB結合リガンド[18F]SMBT-1の臨床使用に向けた多目的合成装置による製造法の検討2023

    • Author(s)
      豊原潤、多胡哲郎、西野浩輔、酒井昌成、石井賢二
    • Organizer
      日本薬学会第143年会
    • Related Report
      2022 Research-status Report
  • [Presentation] PET用HDAC6イメージングプローブ[18F]FSW-100の自動合成最適化2023

    • Author(s)
      多胡哲郎、豊原潤、石井賢二
    • Organizer
      日本薬学会第143年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Experience of GMP for investigational products in academic research institute.2022

    • Author(s)
      Toyohara J
    • Organizer
      IAEA regional training course on good manufacturing practice (GMP) and radiation safety aspects of radiopharmaceutical production using medical cyclotron (IAEA/RCA RAS6097)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Radiosynthesis and biological evaluation of a nicotinic acid hydroxamate derivative as a radioligand for HDAC6 PET imaging.2022

    • Author(s)
      Tago T, Toyohara J, Ishii K
    • Organizer
      International symposium on radiopharmaceutical sciences.
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] PET imaging of neuroinflammation2022

    • Author(s)
      Toyohara J
    • Organizer
      Japan-Korea joint symposium in the 45th annual meeting of the japan society for biomedical gerontology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Comparative pathological study of carbon-11 labeled pittsburgh compound-B PET centiloid scale and amyloid beta deposition in postmortem brains2022

    • Author(s)
      Matsubara T, Murayama S, Ihara R, Higashihara M, Nishina Y, Kanemaru K, Iwata A, Arai T, Kameyama M, Tokumaru AM, Imabayashi E, Ishibashi K, Toyohara J, Saito Y, Ishii K
    • Organizer
      Alzheimer’s association international conference 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Amyloid accumulation in medial temporal area starts in MCI stage in [18F]flutemetamol PET2022

    • Author(s)
      Imabayashi E, Ishii K, Toyohara J, Kojima N, Tago T, Sakata M, Wagatsuma K, Ishibashi K, Tokumaru AM, Kim H
    • Organizer
      Alzheimer’s association international conference 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Regional cerebral atrophy correlate with amyloid accumulation in preclinical Alzheimer’s disease2022

    • Author(s)
      Imabayashi E, Ishii K, Toyohara J, Kojima N, Tago T, Sakata M, Wagatsuma K, Ishibashi K, Tokumaru AM, Kim H
    • Organizer
      Alzheimer’s association international conference 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Occupancy of adenosine A2A receptors after coffee intake in patients with Parkinson’s disease2022

    • Author(s)
      Ishibash, K, Miura Y, Kamitaka Y, Tago T, Sakata M, Toyohara J, Ishii K
    • Organizer
      The 13th congress of the world federation of nuclear medicine and biology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 放射性薬剤の製造と品質管理2022

    • Author(s)
      豊原潤
    • Organizer
      第21回日本核医学会春季大会放射性医薬品エキスパートセミナー
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Longitudinal changes in 18F-FDG uptake in two elderly patients with Alzheimer’s disease2022

    • Author(s)
      Ishibashi K, Onishi A, Kamitaka Y, Tago T, Sakata M, Toyohara J, Ishii K
    • Organizer
      第63回日本神経学会学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 新規脳内HDAC6 PETイメージングプローブの開発2022

    • Author(s)
      多胡哲郎、豊原潤、石井賢二
    • Organizer
      第62回日本核医学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] [18F] Flutemetamol によるアミロイドPET定量化のためのアルゴリズム開発について2022

    • Author(s)
      今林悦子、豊原潤、坂田宗之、石橋賢士、上髙祐人、石井賢二
    • Organizer
      第62回日本核医学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] プレクリニカル期アルツハイマー病のアミロイド蓄積に相関する大脳皮質の萎縮について2022

    • Author(s)
      今林悦子、豊原潤、多胡哲郎、坂田宗之、我妻慧、石橋賢士、石井賢二
    • Organizer
      第62回日本核医学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] [18F] Flutemetamol によるアミロイドPETの軽度認知障害期における側頭葉内側部の集積について2022

    • Author(s)
      今林悦子、豊原潤、多胡哲郎、坂田宗之、我妻慧、石橋賢士、石井賢二
    • Organizer
      第62回日本核医学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] アミロイドPETにおけるデータ駆動短時間フレーム体動補正法の検討2022

    • Author(s)
      坂田宗之、上髙祐人、甲木章枝、川上弘文、我妻慧、織田圭一、石橋賢士、多胡哲郎、豊原潤、石井賢二
    • Organizer
      第62回日本核医学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] Executive control network領域の脳血流量と神経心理検査cut-off値との関連性;123IMP SPECTとautomated anatomical labellingを活用した解析2022

    • Author(s)
      日浦幹夫、坂田宗之、高橋正樹、野澤亮太、梅森勉、太田潔、福田信、布村仁一。吉田健太郎、鄭健錫、片山容一
    • Organizer
      第31回東北脳SPECT研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] 有酸素運動の強度変化に伴う前頭葉皮質における脳血流酸素代謝カップリングの考察2022

    • Author(s)
      日浦幹夫、坂田宗之、成相直、石橋賢士、我妻慧、多胡哲郎。豊原潤、石井賢二、片山容一
    • Organizer
      第65回日本脳循環代謝学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] [18F]flutemetamolの軽度認知障害期における側頭葉内側部集積について2022

    • Author(s)
      今林悦子、豊原潤、多胡哲郎、坂田宗之、石橋賢士、石井賢二
    • Organizer
      第41回日本認知症学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] プレクリニカル期およびMCI期におけるアミロイド蓄積に相関する大脳皮質の萎縮について2022

    • Author(s)
      今林悦子、豊原潤、多胡哲郎、坂田宗之、石橋賢士、石井賢二
    • Organizer
      第41回日本認知症学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] Radiosynthesis and preliminary evaluation of a novel 18F-labeled probe for PET imaging of HDAC6 in the brain2021

    • Author(s)
      Tago T, Toyohara J, Ishii K
    • Organizer
      The 11th China-Japan-Korea Symposium on Radiopharmaceutical Sciences
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Characteristics of cerebral blood flow elicited by exercise intervention for patients with hypertension and uschemic cerebrovascular disease2021

    • Author(s)
      Hiura M, Nariai T, Sakata M, Toyohara J, Ishibashi K, Wagatsuma K, Ishii K, Katayama Y
    • Organizer
      Sporst, Medicine and Health Summit
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 放射性薬剤の製造と品質管理2021

    • Author(s)
      豊原潤
    • Organizer
      第21回日本核医学会春季大会放射性医薬品エキスパートセミナー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Occupancy of adenosine A2A receptors after long term use of istradefylline in Parkinson's disease2021

    • Author(s)
      Ishibashi K, Miura Y, Tago T, Wagatsuma K, Sakata M, Toyohara J, Ishii K
    • Organizer
      第62回日本神経学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ネオペンチル標識基を利用するラジオセラノスティクス薬剤の合成研究2021

    • Author(s)
      劉紫昀、ソウエイソウ、多胡哲郎、西岡成汰、熊添基文、岩井久美子、平野圭市、立花宏文、豊原潤、田中浩士
    • Organizer
      日本ケミカルバイオロジー学会第15回年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 18F-標識ネオペンチル側鎖を有する化合物の固相抽出精製法による標識合成2021

    • Author(s)
      多胡哲郎、豊原潤、ソウエイソウ、田中浩士
    • Organizer
      第4回日本核医学会分科会放射性薬品科学研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] 新規P-糖タンパク質イメージング剤[18F]MC225の初期臨床評価2021

    • Author(s)
      豊原潤、坂田宗之、石橋賢士、我妻慧、多胡哲郎、今林悦子、Nicola Colabufo、Gert Luurtsema、石井賢二
    • Organizer
      第61回日本核医学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 新規P-糖タンパク質イメージング剤[18F]MC225の全身PET計測による被ばく線量評価2021

    • Author(s)
      豊原潤、坂田宗之、石橋賢士、我妻慧、多胡哲郎、今井昌康、Nicola Colabufo、Gert Luurtsema、石井賢二
    • Organizer
      第61回日本核医学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] プレクリニカル期アルツハイマー病における側頭葉内側部の容積について2021

    • Author(s)
      今林悦子、石井賢二、豊原潤、坂田宗之、我妻慧、石橋賢士、多胡哲郎、德丸阿弥、小島成美、金憲経
    • Organizer
      第61回日本核医学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] SPMを用いた脳FDG画像の統計比較における新旧機種の機種間差補正の検討2021

    • Author(s)
      坂田宗之、我妻慧、織田圭一、今林悦子、上髙祐人、石橋賢士、多胡哲郎、豊原潤、石井賢二
    • Organizer
      第61回日本核医学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Development of a PET probe for histone deacetylase 6 in the brain2021

    • Author(s)
      Tago T, Toyohara J, Ishii K
    • Organizer
      第61回日本核医学会学術総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Istradefylline長期内服によるアデノシンA2A受容体占拠率2021

    • Author(s)
      石橋賢士、我妻慧、多胡哲郎、坂田宗之、豊原潤、石井賢二
    • Organizer
      第61回日本核医学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 11C-PiB PETを実施した22剖検例におけるCentiloidと病理診断との対比2021

    • Author(s)
      松原知康、齊藤祐子、村山繁雄、新井冨生、井原涼子、東原真奈、仁科裕史、金丸和富、岩田淳、亀山征史、今林悦子、德丸阿耶、石橋賢士、豊原潤、石井賢二
    • Organizer
      第40回日本認知症学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 高齢者地域コホートにおける脳内アミロイド蓄積と局所脳容積について2021

    • Author(s)
      今林悦子、石井賢二、豊原潤、坂田宗之、我妻慧、石橋賢士、多胡哲郎、德丸阿耶、小島成実、小林洋大、甲田哲之、金憲経
    • Organizer
      第40回日本認知症学会学術集会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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