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High-order mechanism for regulating immune function of macrophages using a new recombinant protein and its clinical application

Research Project

Project/Area Number 17K08999
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Laboratory medicine
Research InstitutionNagahama Institute of Bio-Science and Technology

Principal Investigator

Ikemoto Masaki  長浜バイオ大学, バイオサイエンス学部, 客員教授 (80144385)

Co-Investigator(Kenkyū-buntansha) 伊藤 洋志  長浜バイオ大学, バイオサイエンス学部, 准教授 (20362387)
岡田 光貴  京都橘大学, 健康科学部, 助教C (80747569)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsマクロファージ / 炎症性サイトカイン / 間質性肺炎 / 強皮症 / 組換えタンパク質 / 難病 / 免疫複合体 / S100タンパク質 / NF-kappa B / 複合体 / 好中球 / 組み換えタンパク質 / 核内移行 / エンドサイトーシス / 炎症 / macrophages / immune function / regulation / recombinant protein / S100 protein
Outline of Final Research Achievements

Recombinant human MIKO-1 and its derivatives (-1a, -1b, -1c) were newly developed by gene technology. hMIKO-1 strongly suppressed the onset of experimental colitis induced with 5% DSS in rats. hMIKO-1 intracellularly entered into macrophages and further migrated inside their nucleus. It was strongly suggested that hMIKO-1 could inhibit the pathway of NF-kappa B by negatively regulating the expression of inflammatory cytokines's mRNAs.
On the other hand, we confirmed that hMIKO-1 also entered into macrophages and further migrated inside the nucleus. It was also noteworthy that hMIKO-1 strongly suppressed the onset of indirect pneumonia and systemic sclerosis in mouse.

Academic Significance and Societal Importance of the Research Achievements

hMIKO-1は核内における炎症性サイトカインmRNAの発現を強く阻害すること,細胞質で産生された炎症性サイトカインを細胞質内で複合体を形成することにより,炎症誘導過程を阻害すると考えられる.これはToll-like recptor 4を介する経路を阻害している可能性が高いことから,潰瘍性大腸炎だけでなくマクロファージの異常活性化を原因とする他の炎症性疾患に対しても有効と考えられる.事実,間質性肺炎や強皮症においてもその有効性が確認された.これらの成果は難病の原因解明に貢献でき,その社会的意義は大変大きい.また,hMIKO-1のアミノ酸配列の解析は新しいタンパク質科学の発展に寄与できる.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (14 results)

All 2020 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Circulating S100A8/A9 is potentially a biomarker that could reflect the severity of experimental colitis in rats2020

    • Author(s)
      Kohki Okada, Hiroshi Itoh, Masaki Ikemoto
    • Journal Title

      Heliyon

      Volume: 6 Issue: 2 Pages: e03470-e03470

    • DOI

      10.1016/j.heliyon.2020.e03470

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Serum S100A8/A9 as a potentially sensitive biomarker for inflammatory bowel diseases2019

    • Author(s)
      Kohki Okada, Makoto Okabe, Yuto Kimura, Kohsuke Doi, Hiroshi Itoh, and Masaki Ikemoto
    • Journal Title

      Lab Med

      Volume: 50 Issue: 4 Pages: 370-380

    • DOI

      10.1093/labmed/lmz003

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Establishment of S100A8 Transgenic Rats to Understand Innate Property of S100A8 and Its Immunological Role2018

    • Author(s)
      Okada Kohki、Itoh Hiroshi、Kamikubo Yasuhiko、Adachi Souichi、Ikemoto Masaki
    • Journal Title

      Inflammation

      Volume: 41 Issue: 1 Pages: 59-72

    • DOI

      10.1007/s10753-017-0664-8

    • Related Report
      2019 Annual Research Report 2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 潰瘍性大腸炎モデルラットの大腸組織において変動するタンパク質の網羅的解析2019

    • Author(s)
      岡田光貴,池本正生
    • Organizer
      第59回日本臨床化学会年次学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 遺伝子組換えタンパク質hMIKO-1の潰瘍性大腸炎抑制効果とその作用機構の解析2019

    • Author(s)
      岡田光貴,池本正生
    • Organizer
      第59回日本臨床化学会年次学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 潰瘍性大腸炎における大腸組織中細胞質性炭酸脱水酵素CA-IIIの臨床的意義について2019

    • Author(s)
      岡田光貴,池本正生
    • Organizer
      第66回日本臨床検査医学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] マクロファージ機能制御性タンパク質hMIKO-1の潰瘍性大腸炎に対する新しい治療薬としての可能性2019

    • Author(s)
      岡田光貴,池本正生
    • Organizer
      第66回日本臨床検査医学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Identification of serum proteins changed in patients with inflammatory bowel disease by mass spectrometry and their potential as new biomarkers2019

    • Author(s)
      Kohki Okada and Masaki Ikemoto
    • Organizer
      Congress of the Korean Association of Medical Technologists and International Symposium, Korean Society for Clinical Laboratory Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 炎症性腸疾患における補体C3測定の臨床的意義2018

    • Author(s)
      岡田 光貴,池本 正生
    • Organizer
      第58回 日本臨床化学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 炎症性腸疾患におけるα2-マクログロブリン測定の臨床的意義2018

    • Author(s)
      岡田 光貴,池本 正生
    • Organizer
      第65回 日本臨床検査医学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] 遺伝子組み換えタンパク質によるマクロファージ機能の超制御機構とその臨床応用2018

    • Author(s)
      岡田 光貴,伊藤 洋志,池本 正生
    • Organizer
      第65回 日本臨床検査医学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] Serum S100A8/A9 is a sensitive biomarker for inflammatory bowel diseases2017

    • Author(s)
      Kohki Okada, Shunsuke Sekiya, Kohsuke Doi, and Masaki Ikemoto
    • Organizer
      The 29th World Congress of World Association of Societies of Pathology and Laboratory Medicine
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] S100A8トランスジェニックラットの樹立とその免疫学的意義2017

    • Author(s)
      岡田光貴,池本正生
    • Organizer
      第57回日本臨床化学会年次学術集会
    • Related Report
      2017 Research-status Report
  • [Patent(Industrial Property Rights)] 機能性ペプチド,それを用いた大腸炎用医薬およびデリバリー剤2018

    • Inventor(s)
      池本 正生
    • Industrial Property Rights Holder
      池本 正生
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-214434
    • Filing Date
      2018
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2021-12-27  

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