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Development of a Multifaceted Approach to Prevent Cerebral Palsy Using Autologous Amniotic Fluid Stem Cells Starting from the Fetal Period

Research Project

Project/Area Number 21H03080
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 56040:Obstetrics and gynecology-related
Research InstitutionKeio University

Principal Investigator

Tanaka Mamoru  慶應義塾大学, 医学部(信濃町), 教授 (20207145)

Co-Investigator(Kenkyū-buntansha) 落合 大吾  北里大学, 医学部, 教授 (80348713)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2022: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywordsヒト羊水幹細胞 / 早産 / 胎児治療 / 細胞外小胞 / マクロファージ / 羊水 / 間葉系幹細胞 / 脳性麻痺 / 炎症 / 幹細胞
Outline of Research at the Start

我々は、ヒト羊水幹細胞(human amniotic fluid stem cell: hAFSC)の新生児期投与は,複数の周産期難治性神経疾患モデル動物(周産期脳障害,脊髄髄膜瘤)において治療効果を示すこと,早産モデル動物の母体への投与は早産を予防することを見出してきた。
本研究では「胎児期からはじめる, 自己羊水由来幹細胞を用いた多面的な脳性麻痺予防法の開発」を目的とし,世界初のhAFSCの臨床応用に向けて、残された基礎的課題を検討する。

Outline of Final Research Achievements

In this study, we investigated the anti-inflammatory effects and efficacy of human amniotic fluid stem cells (hAFSCs) in preventing preterm birth. In the LPS-induced preterm birth model, hAFSC administration significantly reduced the preterm birth rate and decreased inflammatory cytokines. Administered hAFSCs formed aggregates with macrophages in the peritoneal cavity, leading to a phenotypic switch of macrophages to an anti-inflammatory state. Additionally, hAFSCs were established from amniotic fluid obtained from pPROM patients, and no bacterial contamination was detected. Attempts to isolate specific cell populations using scRNA-seq did not lead to the development of new isolation methods, but it was suggested that extracellular vesicles from hAFSCs may play a central role in their anti-inflammatory effects.

Academic Significance and Societal Importance of the Research Achievements

ヒト羊水幹細胞は、羊水中から採取される間葉系幹細胞の一種であり、高い抗炎症作用を有していることが知られている。本研究は、ヒト羊水幹細胞が早産を予防する効果を初めて明らかにし、炎症性マクロファージを抗炎症性に変えることを示した。加えて、ヒト羊水幹細胞から単離された細胞外小胞にも抗炎症作用があることが明らかになった。これにより、hAFSCを用いた新しい周産期医療の可能性が示され、将来的には早産予防と関連する新生児の健康改善に寄与することが期待される。

Report

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

    (8 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (2 results)

  • [Int'l Joint Research] University of Oxford(英国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Development of a new treatment for preterm birth complications using amniotic fluid stem cell therapy2023

    • Author(s)
      Abe Y, Sato Y, Tanaka M, Ochiai D.
    • Journal Title

      Histol Histopathol.

      Volume: 38 Pages: 965-974

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prophylactic administration of human amniotic fluid stem cells suppresses inflammation-induced preterm birth via macrophage polarization2022

    • Author(s)
      Abe Yushi、Ochiai Daigo、Kanzaki Seiji、Sato Yu、Otani Toshimitsu、Ikenoue Satoru、Kasuga Yoshifumi、Tanaka Mamoru
    • Journal Title

      Molecular and Cellular Biochemistry

      Volume: 478 Issue: 2 Pages: 363-374

    • DOI

      10.1007/s11010-022-04512-2

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Human Amniotic Fluid Stem Cells Ameliorate Thioglycollate-Induced Peritonitis by Increasing Tregs in Mice2022

    • Author(s)
      Abe Yushi、Ochiai Daigo、Taguchi Masako、Kanzaki Seiji、Ikenoue Satoru、Kasuga Yoshifumi、Tanaka Mamoru
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 23 Issue: 12 Pages: 6433-6433

    • DOI

      10.3390/ijms23126433

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Cell sheets using human amniotic fluid stem cells reduce tissue fibrosis in murine full-thickness skin wounds2021

    • Author(s)
      Ochiai Daigo、Abe Yushi、Fukutake Marie、Sato Yu、Ikenoue Satoru、Kasuga Yoshifumi、Masuda Hirotaka、Tanaka Mamoru
    • Journal Title

      Tissue and Cell

      Volume: 68 Pages: 101472-101472

    • DOI

      10.1016/j.tice.2020.101472

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Amniotic fluid stem cells as a novel strategy for the treatment of fetal and neonatal neurological diseases2021

    • Author(s)
      Abe Yushi、Ochiai Daigo、Sato Yu、Otani Toshimitsu、Fukutake Marie、Ikenoue Satoru、Kasuga Yoshifumi、Tanaka Mamoru
    • Journal Title

      Placenta

      Volume: 104 Pages: 247-252

    • DOI

      10.1016/j.placenta.2021.01.009

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Therapeutic effects of Human Amniotic Fluid Stem Cell-Derived Extracellular Vesicles (hAFSC- EVs) on Inflammatory Macrophage Polarization2024

    • Author(s)
      Yushi Abe, Toshimitsu Otani, Yosuke Matsumiya, Keita Hasegawa, Yoshifumi Kasuga, Satoru Ikenoue, Daigo Ochiai, Manu Vatish, Wataru Yamagami, Mamoru Tanaka
    • Organizer
      第76回日本産科婦人科学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ヒト羊水幹細胞の腹腔内投与は腹腔内凝集体による炎症制御を介して早産を抑制する2021

    • Author(s)
      阿部 雄志, 落合 大吾, 升田 博隆, 佐藤 佑, 池ノ上 学, 春日 義史, 田中 守, 青木 大輔
    • Organizer
      第73回日本産科婦人科学会学術講演会
    • Related Report
      2021 Annual Research Report

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

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