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Is fat regeneration with bFGF-enriched PRP a reality? -Building evidence in aesthetic medicine

Research Project

Project/Area Number 21K09802
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56070:Plastic and reconstructive surgery-related
Research InstitutionJuntendo University

Principal Investigator

Mizuno Hiroshi  順天堂大学, 医学部, 教授 (80343606)

Co-Investigator(Kenkyū-buntansha) 小出 寛  順天堂大学, 大学院医学研究科, 特任教授 (70260536)
松井 千裕  順天堂大学, 医学部, 非常勤助手 (80815019)
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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsbFGF / PRP / 脂肪再生 / 美容医療
Outline of Research at the Start

昨今特に美容医療領域において未だ論争が続いている問題、すなわち自家多血小板血漿に塩基性線維芽細胞増殖因子を混入させたものを皮下に投与することで皮下脂肪の再生を介した組織増大を促すといった現象が果たして真実なのか、またそもそもそうでないとすれば組織増大現象の本質は何か、そしてその治療方法は安全なものなのかどうかについて動物実験を実施し、当該治療法が妥当な再生医療と言えるのかどうかについて検証する。

Outline of Final Research Achievements

Basic fibroblast growth factor (bFGF) and platelet-rich plasma (PRP) are widely used in regenerative medicine, but adverse events from their combined transplantation have become a concern in aesthetic medicine. This study investigated the effects of bFGF-enriched PRP on adipose tissue. Human adipose tissue was injected into nude mice, followed by administration of bFGF-enriched PRP, PRP, or bFGF alone, and the effects were evaluated histologically and immunohistochemically.
The results showed: 1) bFGF-enriched PRP group promote tissue fibrosis in a bFGF concentration-dependent manner, 2) angiogenesis increased in a bFGF concentration-dependent manner and 3) PPARγ expression was higher in a bell-shaped bFGF concentration-dependent manner. Thus, low to medium concentrations of bFGF-enriched PRP promote adipocyte differentiation, whereas high concentrations enhance fibrosis.

Academic Significance and Societal Importance of the Research Achievements

美容医療は保険外診療が原則の為、事によれば必ずしも安全性を担保されているとは言い難いものもある。近年ではbFGF添加PRPを皮下に投与することで皮下脂肪の再生を介した組織増大を促す治療が提供されているが、多くの有害事象も報告されているなど、本治療法の安全性や有効性が科学的に検証されておらず憂慮した状況が続いてきた。今回の研究によって、bFGFの濃度次第で時に脂肪再生の促進を起こし、時に組織の線維化を惹起することが明らかとなった。本結果はbFGF添加PRP治療の脂肪組織への影響を示した初めての報告であり、美容医療領域に乏しいEBMの構築に寄与できたのではないかと考える。

Report

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

    (6 results)

All 2023 2022 2021

All Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Presentation] Current status and challenges of regenerative medicine in anti-aging aesthetic medicine2023

    • Author(s)
      Mizuno H
    • Organizer
      The 6th Asia Pacific Anti-Aging Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Hype and Hope: Regenerative Medicine in Aesthetic Surgery2023

    • Author(s)
      Mizuno H
    • Organizer
      The 26th Annual Scientific Meeting of the Indonesian Association of Plastic Reconstructive and Aesthetic Surgeons
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Exploring autologous cells in anti-aging and aesthetics: recent trends in Japan2023

    • Author(s)
      Mizuno H
    • Organizer
      The 6th Asia Pacific Anti-Aging Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヒト脂肪組織内への塩基性線維芽細胞増殖因子と多血小板血漿の混合投与による影響2023

    • Author(s)
      伊藤智之、金 正楠、平野理恵、田中里佳、水野博司
    • Organizer
      第32回日本形成外科学会基礎学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 再生医療における世界の動向と美容医療における再生医療の現状と影2022

    • Author(s)
      水野博司
    • Organizer
      第144回日本美容外科学会学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 自家脂肪注入術の基礎とエビデンス2021

    • Author(s)
      水野博司
    • Organizer
      第64回日本形成外科学会総会学術集会
    • Related Report
      2021 Research-status Report

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

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