Updated on 2024/11/25

写真a

 
HASEGAWA Koki
 
Organization
School of Health Sciences Depertment of Medical Radiology Technology Professor
Fukushima Global Medical Science Center Advanced Clinical Research Center Professor
Hospital Medical Imaging Center Professor
Title
Professor
Contact information
メールアドレス

Degree

  • 学士(歯学) ( 2008.3   大阪大学 )

  • 博士(理学) ( 2002.9   大阪大学 )

  • Master (Science) ( 1999.3   Osaka University )

  • 学士(工学) ( 1997.3   姫路工業大学 )

Research Interests

  • Radiopharmaceutical Chemistry, Histochemistry

Research Areas

  • Life Science / Radiological sciences

  • Life Science / Human pathology

Education

  • Osaka University   Faculty of Dentistry   School of Dentistry

    - 2008.3

  • 大阪大学大学院   理学研究科   化学

    - 2002.9

  • Himeji Institute of Technology   Faculty of Engineering

    - 1997.3

Research History

  • Fukushima Medical University   Department of Radiological Sciences, School of Health Sciences   Professor

    2021.4 - Now

  • Fukushima Medical University   Fukushima Global Medical Science Center Advanced Clinical Research Center   Professor

    2021.4 - Now

  • Fukushima Medical University   Hospital Medical Imaging Center   Professor

    2021.4 - Now

  • Kyoto Pharmaceutical University   Center for Instrumental Analysis   Associate Professor

    2015.10 - 2021.3

  • Kumamoto University   Pathology and experimental medicine   Assistant Professor

    2012.5 - 2015.9

  • RIKEN, Researcher   Researcher

    2008.4 - 2012.4

  • Institute for Protein Research, Osaka University, Researcher   Institute for Protein Research

    2002.10 - 2003.9

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Professional Memberships

  • European Association of Nuclear Medicine

    2023.1 - Now

  • 日本放射線技術学会

    2021.4 - Now

  • 日本癌学会

    2021.4 - Now

  • JAPAN SOCIETY OF HISTOCHEMISTRY AND CYTOCHEMISTRY

    2013.4 - Now

  • THE JAPANESE SOCIETY OF PATHOLOGY

    2013.4 - Now

  • Society of Radiopharmaceutical Sciences

    2011.1 - Now

  • THE JAPANESE SOCIETY OF NUCLEAR MEDICINE

    2008.4 - Now

  • THE PHARMACEUTICAL SOCIETY OF JAPAN

    2008.4 - Now

  • The Japanese Peptide Society

    1997.4 - Now

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Qualification acquired

  • Hazardous Material Handler (first kind)

      20150326

  • Dentist

      20080425

Papers

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Books

Presentations

  • 上皮成長因子受容体(EGFR)を標的とした細胞溶解薬剤の開発

    日本薬学会第142年会  

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    Event date: 2022.3

  • ポリプロリンヘリックスIIヘリックス構造によるアルギニンペプチドの細胞膜透過性の亢進

    日本薬学会第140年会  

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    Event date: 2020.3

  • 67Ga標識Reactive Black 5を利用した炎症巣のSPECTイメージング

    日本薬学会第140年会  

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    Event date: 2020.3

  • タモキシフェン誘導体を用いた肺がんのリガンド誘導体染色

    第60回日本組織細胞化学会総会・学術集会  

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    Event date: 2019.9

  • ApoE由来アルギニンペプチドの細胞膜透過における糖鎖依存性の評価

    日本薬学会第139年会  

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    Event date: 2019.3

  • 両親媒性環状ペプチドの細胞膜透過機構解明に向けたペプチドの合成

    日本薬学会第139年会  

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    Event date: 2019.3

  • 低分子リガンドを用いたエストロゲン受容体検出法の開発

    第59回日本組織細胞化学会総会・学術集会  

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    Event date: 2018.9

  • 肺癌における新しいガイダンス分子であるドラキシンについて

    第108回日本病理学会総会  

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    Event date: 2018.5

  • リガンド誘導体を用いた受容体検出法の開発

    第123回日本解剖学会総会・全国学術集会  

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    Event date: 2018.3

  • エストラジオール誘導体を用いたその受容体検出法の開発

    日本薬学会第138年会  

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    Event date: 2018.3 - 2019.3

  • 新規両親媒性アルギニンペプチドの細胞膜透過性の評価

    日本薬学会第138年会  

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    Event date: 2018.3 - 2019.3

  • リガンド誘導体染色によるソマトスタチン受容体の検出法

    第56 回日本臨床細胞学会秋期大会  

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    Event date: 2017.11

  • アポE糖鎖結合ドメインに基づく両親媒性膜透過ペプチドの設計

    膜シンポジウム  

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    Event date: 2017.11

  • 抗体リポソームによる選択的BPA取込み増強のためのアミノ酸トランスポーターLAT1遺伝子導入技術の開発

    第14回日本中性子補足療法学会学術大会  

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    Event date: 2017.9

  • リガンド誘導体染色法を用いたKisspeptin Receptor(KISS1R)の検出検討

    第58回日本組織細胞化学会総会・学術集会  

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    Event date: 2017.9

  • Synthesis of 67Ga-labeled Kisspeptin10 and in vivo evaluation for medullary thyroid carcinoma imaging

    22nd International Symposium on Radiopharmaceutical Sciences  

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    Event date: 2017.5

  • Visualization of cancer metastasis with radiolabeled ligands of Kiss1 receptors by SPECT

    26th Federation of Asian Pharmaceutical Associations Congress  

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    Event date: 2016.11

  • Kiss1受容体発現腫瘍スクリーニングと67Ga-DOTA-Kisspeptin10を用いたSPECTイメージング

    第56回日本核医学会学術総会  

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    Event date: 2016.11

  • CCK-8誘導体を用いたホルマリン固定パラフィン包埋切片上中のコレシストキニン受容体検出

    第53回ペプチド討論会  

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    Event date: 2016.10

  • リガンド誘導体染色法を用いたコレシストキニン受容体の検出

    第57回日本組織細胞化学会総会・学術集会  

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    Event date: 2016.9

  • リガンド誘導体を用いた受容体染色剤の開発

    日本薬学会年会第136年会  

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    Event date: 2016.3

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Industrial property rights

  • 生体内にて標的組織に指向する放射標識化合物およびその利用

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    Property type:Patent

    Application no:特願2011-547603  Date applied:2010.12

    Patent/Registration no:特許第5892540号  Date registered:2016.3  Date issued:2016.3

    J-GLOBAL

  • 生体内にて標的組織に指向する放射標識化合物およびその利用

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    Property type:Patent

    Application no:JP2010073189  Date applied:2010.12

    Announcement no:WO2011-078250  Date announced:2011.6

    J-GLOBAL

  • 膵臓内分泌細胞用指示薬、及びその利用

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    Property type:Patent

    Application no:特願2011-524811  Date applied:2010.7

    Patent/Registration no:特許第5721106号  Date registered:2015.4  Date issued:2015.4

    J-GLOBAL

  • 膵臓内分泌細胞用指示薬、及びその利用

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    Property type:Patent

    Application no:JP2010062701  Date applied:2010.7

    Announcement no:WO2011-013703  Date announced:2011.2

    J-GLOBAL

  • DOTAの導入法

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    Property type:Patent

    Application no:JP2009067647  Date applied:2009.10

    Announcement no:WO2010-041742  Date announced:2010.4

    Publication no:WO2010-041742  Date published:2010.4

    J-GLOBAL

  • 新規ヘキサトリエン−β−カルボニル化合物

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    Property type:Patent

    Application no:特願2008-557126  Date applied:2008.2

    Patent/Registration no:特許第5013378号  Date registered:2012.6  Date issued:2012.6

    J-GLOBAL

  • 新規ヘキサトリエン−β−カルボニル化合物

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    Property type:Patent

    Application no:JP2008051871  Date applied:2008.2

    Announcement no:WO2008-096760  Date announced:2008.8

    J-GLOBAL

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Research Projects

  • Development of alpha-ray microdosimetry at the cellular level

    Grant number:23K27554  2023.4 - 2026.3

    Grant-in-Aid for Scientific Research (B)

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    Grant amount:\18850000 ( Direct Cost: \14500000 、 Indirect Cost:\4350000 )

  • Genetic basis of individual differences in itch sensitivity using mouse strain differences

    Grant number:22K06058  2022.4 - 2025.3

    Grant-in-Aid for Scientific Research (C)

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    Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )

  • Signal molecules of ASCL1, a lineage-specific transcription factor for small cell carcinoma of the lung

    Grant number:20H03691  2020.4 - 2024.3

    Grant-in-Aid for Scientific Research (B)

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    Grant amount:\17680000 ( Direct Cost: \13600000 、 Indirect Cost:\4080000 )

  • Development of a method to predict prognosis and treatment effect based on estrogen receptor expression level

    Grant number:17K08749  2017.4 - 2020.3

    Grant-in-Aid for Scientific Research (C)

    Hasegawa Koki

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    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

    It is difficult to produce good quality antibodies. Occasionally, the reproducibility of an experiment may not be achieved due to the quality of the antibody. To overcome these problems, we prepared low molecular-weighted ligand agents that can be constant quality for detection. The method using low molecular-weighted ligand agents alternative to antibodies was named Western ligand blot and ligand derivertive stain, respectively. In this study, tamoxifen derivative was used to detect estrogen receptor. The estrogen receptor was successfully detected by the Western ligand blot. We have also successfully stained pathological sections of lung adenocarcinoma and lung squamous cell carcinoma with ligand derivaertive stain.

  • Regulation of small cell lung carcinoma cells by interference between axon guidance molecules and their receptors

    Grant number:16K15459  2016.4 - 2018.3

    Grant-in-Aid for Challenging Exploratory Research

    Ito Takaaki, MATSUO Akira, SHINMYO Yohei, HASEGAWA Koki

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    Grant amount:\3380000 ( Direct Cost: \2600000 、 Indirect Cost:\780000 )

    The axon guidance molecule-receptor system works not only in neural network formation, and but also in cancer cell proliferation and apoptosis. Draxin and Netrin1 share their receipt, DCC and Neogenin. This study was done to elucidate the significance of the guidance molecule-receptor system in lung cancer cell proliferation and survival. Western blotting and immunohistochemical studies revealed that small cell lung cancer and non-small cell lung cancer express these molecules. Though gene knockdown and over-expression studies using small cell lung cancer cell lines, using non-small cell lung cancer cell lines, we demonstrated that the system works in lung cancer cell proliferation and survival. And, it is suggested that Draxin could interact directly with Netrin1 in cancer cell proliferation.

  • Relationship between receptor expression revaled by rhodamine-labeled peptides and calcium responses in cortical neurons

    Grant number:16K15783  2016.4 - 2018.3

    Grant-in-Aid for Challenging Exploratory Research

    KOBAYASHI Masayuki

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    Grant amount:\3380000 ( Direct Cost: \2600000 、 Indirect Cost:\780000 )

    Neural responses to a ligand exhibit a wide variation from neuron to neuron, however, underling mechanisms of the response variation remains unclear. One possible mechanism is a variation of the number of receptors expressed in each neural membrane. To examine this hypothesis, we synthesized rhodamine-labeled orexin A compound, which enabled us to quantify the amount of orexin binding to orexin receptors, OX1 and OX2. Application of rhodamine-labeled orexin A to the cortical surface heterogeneously increased both the intensity of the rhodamine fluorescence and [Ca2+]i. We classified neurons into high- and low-responding neurons based on the peak amplitude of [Ca2+]i increase. Intensity of the rhodamine fluorescence in high-responding neurons was significantly larger than that in low-responding neurons. These results suggest that a part of mechanisms for varying neural responses including [Ca2+]i increases are the diversity of the amount of receptor expression in the neural membrane.

  • Construction of heart failure personalized medicine strategy by heart molecular imaging international collaborative research

    Grant number:15K21774  2016 - 2019

    Fund for the Promotion of Joint International Research (Home-Returning Researcher Development Research)

    HIGUCHI Takahiro, FUKUSHIMA Kazuhito, KIMURA Hiroyuki, HASEGAWA Koki, FUKUCHI Kazuki, SAITO Shigeyoshi, FUKUSHIMA Kenji, ZENIYA Tsutomu, NAKAJIMA Kenichi, TAKI Junichi, YAMAYA Taiga, TORIUMI Fujio, SHIOYA Kyoko

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    Grant amount:\57200000 ( Direct Cost: \44000000 、 Indirect Cost:\13200000 )

    This research project aims to develop a new PET molecular imaging technology and establish a new treatment strategy for patients with heart failure. The principle investigator (PI) has set up a new research base in Japan as the director of the bio-medical imaging department of the National Cardiovascular Research Center. While transferring various knowledge and technologies to Japanese researchers, we have created an environment that enables to conduct state of the art PET imaging research. Since last year, PI has been a professor at Okayama University and has been accelerating the exchange of technology and young researchers with various countries. Furthermore, among the new tracer technology developed in this research project, we have identified multiple tracer candidates that are considered to be highly effective in diagnosing heart failure and will continue further study for clinical application.

  • Development of multimodal theranostics tracer for personalized medicine in immuno-oncology

    Grant number:15K08698  2015.4 - 2018.3

    Grant-in-Aid for Scientific Research (C)

    Kubo Hitoshi, NAKAMURA Michihiro, HASEGAWA Koki

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    Grant amount:\4810000 ( Direct Cost: \3700000 、 Indirect Cost:\1110000 )

    In this study, multimodal theranostics tracer using nano particle has been developed to use for diagnostication with CT, MRI, SPECT, PET, and also treatment with unsealed source radiotherapy in immuno-oncology. The methods for labeling antibody and radioisotope to the organosilica nanoparticle that contained fluorescent dye were developed. The differences of the pharmacokinetics of the tracer in the mice that had transplanted different type of the tumor cell were observed. It was indicated that antibody imaging has been succeeded using this developed method. In spite of this observation, wholebody imaging using SPECT and fluorecent imaging were not succeeded due to low sensitivity. Additional technical development for higher sensitivity will be required to apply this tracer for clinical use in the future.

  • Establishment of novel immunoPET/MRI using 64cU

    Grant number:15K15456  2015.4 - 2018.3

    Grant-in-Aid for Challenging Exploratory Research

    Honda Hiroshi

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    Grant amount:\3640000 ( Direct Cost: \2800000 、 Indirect Cost:\840000 )

    In this study, we aim to establish antibody labeled PET (immunoPET) by labeling various kinds of antibodies including molecular targeted drugs using 64Cu which is a positron nuclide having a relatively long half life. Until now, we have completed the preparation for starting the synthesis by constructing the target system, implementing it in the cyclotron, and installing the metal nuclide generation device in the hot laboratory through joint development with the manufacturer. For the procurement of 64Ni as a raw material and the plating process of Ni on a gold target, work procedures are established and phantom experiments are carried out using the obtained 64Cu. The current problem is that the discharge rate of 64 Cu to the waste liquid is higher than the final yield. We are planning to adjusted dispensing column.

  • Development of the stainier and SPECT probe for the diagnosis of CXCR4 expression in small cell lung carcinoma

    Grant number:26460453  2014.4 - 2017.3

    Grant-in-Aid for Scientific Research (C)

    Hasegawa Koki

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\5070000 ( Direct Cost: \3900000 、 Indirect Cost:\1170000 )

    We have been focusing on Kiss1 receptor (Kiss1R), which might be a key role factor of metastasis, and developing the stainer and SPECT probe for Kiss1R. Kisspeptin10 is a ligand of Kiss1R and consists of10 amino acid residues. Kisspeptin10 was derivatized as the stainer and SPECT probe. Kisspeptin10 stainer was visualized the localization of Kiss1R in pathological tissue sections of lung adenocarcinoma, lung squamous cell carcinoma, small cell lung carcinoma and medullary thyroid carcinoma. Next, Kisspeptin10 was labelled with 67Ga. 67Ga-labeled Kisspeptin10 was injected to the mouse bearing medullary thyroid carcinoma cells to take the SPECT/CT. As the result, Kisspeptin10 was highly accumulated in carcinoma. We concluded that the stainer and SPECT probe for Kiss1R were developed successfully.

  • Mechanisms on genesis of combined type small cell carcinoma; a study focusing on Notch signaling

    Grant number:25460439  2013.4 - 2016.3

    Grant-in-Aid for Scientific Research (C)

    Ito Takaaki, NIIMORI Kanako, HASEGAWA Koki

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    Grant amount:\5070000 ( Direct Cost: \3900000 、 Indirect Cost:\1170000 )

    Combined type of small cell lung carcinoma (SCLC) has both small cell cancer and non-small cell carcinoma components such as adenocarcinoma and squamous cell carcinoma, which are positive for NOTCH1 and negative for INSM1, one of neuroendocrine transcription factor. Mechanisims of NOTCH1 expression in the process of genesis of the combined type SCLC could be epigenetically regulated. NOTCH1-negative classical SCLC cell lines expressed NOTCH1 after trichostatin A treatment, and Chip assay showed that level of acetylated histone H3 surrounding Notch1 promoter region was low in them. Taken together, genesis of combined type SCLC requires NOTCH expression, which could be regulated by histone modification.

  • Search for the PET probes and comparison between them towards non-invasive beta cell mass measurement in human

    Grant number:23602016  2011.4 - 2015.3

    Grant-in-Aid for Scientific Research (C)

    SAKO Takeo, HASEGAWA Koki, KATAOKA Yousuke, CUI Yilong, TOYODA Hiroshi, NISHIMURA Mie, HAYASHINAKA Emi, WADA Yasuhiro

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    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

    Pancreatic beta cell mass is thought to be useful biomarker for diabetes, but so far the only way to measure beta cell mass is the biopsy, which is so invasive that it cannot be done before diagnosis nor so many times even after diagnosis. Therefore, non-invasive method to quantify the beta cell mass is needed.
    Positron Emission Tomograpy (PET) has good sensitivity and quantificapability, compared with other imaging modalities. Our goal is to establish non-invasive measurement of beta cell mass with PET. We performed PET studies with radiolabeled somatostatin analogs and revealed that they were good candidates for evaluation of beta cell mass.

  • Development of a novel site-specific 18F protein labeling method and application for synthesis of 18F-EGF

    Grant number:23791465  2011 - 2013

    Grant-in-Aid for Young Scientists (B)

    HASEGAWA Koki

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

    We prepared NODAGA-EGF as a molecular probe and set up the molecular imaging device in Kumamoto University. EGF, which consists of 53 amino acid residues, was synthesized by Fmoc solid-phase method. After elongation of peptide chain, NODAGA(tBu)3 was introduced at N-terminus. Fully protected peptide resin was treated in TFA solution to cleave from resin and remove protection groups. After HPLC purification, disulfide bonds were formed to give the labeling precursor. Next, to perform molecular imaging study, SPECT/CT was set up. We established a method to form stable complex with Ga-67 via DOTA chelator. SPECT device was checked the accuracy of quantification and image resolution. SPECT imaging using 67Ga-DOTA-octreotate was carried out on the mouse implanted with small cell lung tumor cell (H69). As the result, we could observe the accumulation of the Ga-67 in H69 tumor.

  • Pancreatic β cell imaging using 64Cu- or 68Ga-labeled Exendin-4

    Grant number:21791228  2009 - 2010

    Grant-in-Aid for Young Scientists (B)

    HASEGAWA Koki

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\3510000 ( Direct Cost: \2700000 、 Indirect Cost:\810000 )

    64Cu- or 68Ga-labeled Exendin-4 was synthesized and PET imagings were performed. DOTA-Exendin-4 was synthesized by thioester method. N-terminal segment with DOTA moiety [DOTA-Exendin(1-4)] was condensed with C-terminal segment [Exendin-4(5-39)] to give DOTA-Exendin4. Obtained DOTA-Exendin-4 could be labeled with Ga-68. 64Cu-labeled Exendin-4 was synthesized utilizing Cu binding motif (ATCUN). Exendin-4 with ATCUN motif was could be labeled with Cu-64. PET imagings and biodistribution studies were performed. Biodistribution studies revealed the high accumulation in liver and pancreas. The results of PET imaging, the accumulation of pancreas was determined within 30min after injection. Over 30min, metabolized probe was secreted into the bile. So the accumulation of pancreas could not be distinguished from the intestine including the bile.

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Social Activities

  • 大学模擬講義@宮城県立石巻高校

    2021.10

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