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Ultrasensitive MRI detection of spontaneous pancreatic tumors with nanocage-based targeted contrast agent

Research Project

Project/Area Number 19H04470
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90120:Biomaterials-related
Research InstitutionKyushu University

Principal Investigator

Murata Masaharu  九州大学, 先端医療オープンイノベーションセンター, 教授 (30304744)

Co-Investigator(Kenkyū-buntansha) 大内田 研宙  九州大学, 大学病院, 講師 (20452708)
河野 喬仁  九州大学, 先端医療オープンイノベーションセンター, 特任講師 (90526831)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywordsナノメディスン / MRI / 膵がん / 機能化造影剤 / ナノ材料 / がん / 分子イメージング / ナノメディシン / 診断システム / 造影剤
Outline of Research at the Start

膵がんは極めて不良であり、早期発見こそが予後を改善する唯一の手段となっている。MRIは組織分解能に優れ、また様々な角度から撮像できることから膵がんの画像診断法として用いられているが、80%以上の5年生存率が期待できる腫瘍径1cm以下のがん部を描出するには、感度も特異性も決定的に不足している。
本研究では独自のプロテインケージ技術を用いて、直径12nmのナノカプセル型機能化造影剤を分子設計する。そのサイズと剛直性、表面へのアンテナ分子の呈示(分子標的化)、そして細胞シグナルによる構造変化などを制御することによって、膵がんに対する「超高感度化」、「膵がん特異性」、そして「疾患応答性」を付与する。

Outline of Final Research Achievements

Contrast agents are used to enhance the contrast of the lesion. MRI contrast agents specific for the reticular system, such as the liver, are already widely used in clinical practice and have achieved significant results in terms of tissue selectivity. However, the MRI contrast agents currently used in clinical practice are less specific to specific diseases, such as cancer, and are still under development. In this study, we developed a new MRI contrast agent that incorporates molecular imaging technology to visualize specific molecules using cellular functions. Furthermore, by combining high-sensitivity and disease-response technologies, we have developed a nanocontrast agent with both sensitivity and functionality.

Academic Significance and Societal Importance of the Research Achievements

MRIの国内設置台数はすでに7000台を越え、臨床診断装置として不可欠な役割を担っている。ハードとソフト両面におけるMRI装置の進歩は、撮像の時間分解能や画像の空間分解能など画像診断情報の質を向上させ、MRIの対象領域をますます拡大している。しかしながらその撮影原理上、MRIによって病変部位を特異的に描出することは困難であり、ほとんどの場合、単純な形態診断法して使われている。この欠点を補完し、疾患特異的な機能性造影剤の開発に成功した。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (13 results)

All 2021 2020 2019

All Journal Article (13 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 13 results,  Open Access: 2 results)

  • [Journal Article] Bioinspired macrophage-targeted anti-inflammatory nanomedicine: A therapeutic option for the treatment of myocarditis2021

    • Author(s)
      Toita Riki、Kawano Takahito、Murata Masaharu、Kang Jeong-Hun
    • Journal Title

      Materials Science and Engineering: C

      Volume: 131 Pages: 112492-112492

    • DOI

      10.1016/j.msec.2021.112492

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Protein Nanoparticles Modified with PDGF-B as a Novel Therapy After Acute Cerebral Infarction2021

    • Author(s)
      Takagishi Soh、Arimura Koichi、Murata Masaharu、Iwaki Katsuma、Okuda Tomohiro、Ido Keisuke、Nishimura Ataru、Narahara Sayoko、Kawano Takahito、Iihara Koji
    • Journal Title

      eneuro

      Volume: 8 Issue: 5 Pages: 1-14

    • DOI

      10.1523/eneuro.0098-21.2021

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Protective and healing effects of apoptotic mimic-induced M2-like macrophage polarization on pressure ulcers in young and middle-aged mice2021

    • Author(s)
      Toita Riki、Shimizu Eiko、Murata Masaharu、Kang Jeong-Hun
    • Journal Title

      Journal of Controlled Release

      Volume: 330 Pages: 705-714

    • DOI

      10.1016/j.jconrel.2020.12.052

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of 20?cm sample bore size dynamic nuclear polarization (DNP)-MRI at 16?mT and redox metabolic imaging of acute hepatitis rat model2021

    • Author(s)
      Eto Hinako、Naganuma Tatuya、Nakao Motonao、Murata Masaharu、Elhelaly Abdelazim Elsayed、Noda Yoshifumi、Kato Hiroki、Matsuo Masayuki、Akahoshi Tomohiko、Hashizume Makoto、Hyodo Fuminori
    • Journal Title

      Free Radical Biology and Medicine

      Volume: 169 Pages: 149-157

    • DOI

      10.1016/j.freeradbiomed.2021.04.017

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Novel Hyperspectral Imaging System for Intraoperative Prediction of Cerebral Hyperperfusion Syndrome after Superficial Temporal Artery-Middle Cerebral Artery Anastomosis in Patients with Moyamoya Disease2021

    • Author(s)
      Iwaki Katsuma、Takagishi Soh、Arimura Koichi、Murata Masaharu、Chiba Toru、Nishimura Ataru、Ren Nice、Iihara Koji
    • Journal Title

      Cerebrovascular Diseases

      Volume: 50 Issue: 2 Pages: 208-215

    • DOI

      10.1159/000513289

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a novel molecular probe for the detection of liver mitochondrial redox metabolism2020

    • Author(s)
      Hosain Md. Zahangir、Hyodo Fuminori、Mori Takeshi、Takahashi Koyo、Nagao Yusuke、Eto Hinako、Murata Masaharu、Akahoshi Tomohiko、Matsuo Masayuki、Katayama Yoshiki
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 16489-16489

    • DOI

      10.1038/s41598-020-73336-1

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Imaging of Hydroxyl-Radical Generation Using Dynamic Nuclear Polarization-Magnetic Resonance Imaging and a Spin-Trapping Agent2020

    • Author(s)
      Shoda Shinichi、Hyodo Fuminori、Tachibana Yoko、Kiniwa Mamoru、Naganuma Tatsuya、Eto Hinako、Koyasu Norikazu、Murata Masaharu、Matsuo Masayuki
    • Journal Title

      Analytical Chemistry

      Volume: 92 Issue: 21 Pages: 14408-14414

    • DOI

      10.1021/acs.analchem.0c02331

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Forster resonance energy transfer (FRET)-Labeled nanoprobe enables real-time diagnosis of pancreatic juice activation due to postoperative pancreatic fistula2020

    • Author(s)
      Satoshi Mizutani, Masaharu Murata, Nobuhiko Taniai, Makoto Sukegawa, Ryosuke Nakata, Hiroyasu Furuki, Hiroshi Yoshida
    • Journal Title

      Pancreatology

      Volume: 20 Issue: 5 Pages: 960-967

    • DOI

      10.1016/j.pan.2020.06.001

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The farnesyltransferase inhibitor tipifarnib protects against autoimmune hepatitis induced by Concanavalin A2020

    • Author(s)
      Guo Jie、Shirozu Kazuhiro、Akahoshi Tomohiko、Mizuta Yukie、Murata Masaharu、Yamaura Ken
    • Journal Title

      International Immunopharmacology

      Volume: 83 Pages: 106462-106462

    • DOI

      10.1016/j.intimp.2020.106462

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Fetal Bovine Serum Concentration on Lysophosphatidylcholine-mediated Proliferation and Apoptosis of Human Aortic Smooth Muscle Cells2020

    • Author(s)
      Asai, D, Kawano, T, Murata, M, Nakashima, H, Toita, R, Kang, J.H
    • Journal Title

      Journal of Oleo Science

      Volume: 69 Issue: 3 Pages: 255-260

    • DOI

      10.5650/jos.ess19268

    • NAID

      130007804109

    • ISSN
      1345-8957, 1347-3352
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Investigation of the Separation Efficiency of Tube Radial Distribution Chromatography with Stationary Outer Phase Using the van Deemter Equation2020

    • Author(s)
      Chihiro Matsushita, Kazuhiko Tsukagoshi, Katsumi Tsuchiya, Kenichi Yamashita & Masaharu Murata
    • Journal Title

      Chromatographia

      Volume: 83 Issue: 2 Pages: 287-292

    • DOI

      10.1007/s10337-019-03837-3

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suppression of lysophosphatidylcholine-induced human aortic smooth muscle cell calcification by protein kinase A inhibition2019

    • Author(s)
      Riki Toita, Daisuke Asai, Kentaro Otani, Takahito Kawano, Masaharu Murata, Jeong-Hun Kang
    • Journal Title

      Lipids

      Volume: 54 Issue: 8 Pages: 465-470

    • DOI

      10.1002/lipd.12178

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A high-affinity peptide substrate for G protein-coupled receptor kinase 2 (GRK2)2019

    • Author(s)
      Daisuke Asai, Masaharu Murata, Riki Toita, Takahito Kawano, Hideki Nakashima, Jeong-Hun Kang
    • Journal Title

      Amino acids

      Volume: 51 Issue: 6 Pages: 973-976

    • DOI

      10.1007/s00726-019-02735-0

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed

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Published: 2019-04-18   Modified: 2023-01-30  

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