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Functional parathyroid glands generated using blastocyst complementation

Research Project

Project/Area Number 21K16337
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 54040:Metabolism and endocrinology-related
Research InstitutionSt. Marianna University School of Medicine

Principal Investigator

Kano Mayuko  聖マリアンナ医科大学, 医学部, 助教 (20868129)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords副甲状腺 / 多能性幹細胞 / 胚盤胞補完法 / 副甲状腺機能低下症 / マウスES細胞 / 副甲状腺機能低下症モデルマウス / 腎被膜下移植 / ES細胞 / 内分泌
Outline of Research at the Start

副甲状腺はホルモン分泌を介して生体内のカルシウム代謝を制御する内分泌臓器である。副甲状腺機能低下症に対する現行の補充療法ではカルシウムの繊細かつ生理的な維持が困難であり、時に弊害を来すことが知られている。副甲状腺の再生医療はこのような問題を解決し、より生理的で安全な治療となることが期待される。本課題では胚盤胞補完法の技術を用い、動物体内でカルシウム応答性のある機能的な副甲状腺再生を目指す。さらに作製された多能性幹細胞由来の副甲状腺を副甲状腺機能低下症モデル動物へと移植し、生体内での機能性を明らかにする。

Outline of Final Research Achievements

We attempted to generate functional parathyroid glands (PTGs) from mouse embryonic stem cells (mESCs)by using blastocyst complementation (BC) could be a better strategy for generating functional PTG cells and compensating loss of parathyroid function. Using CRISPR-Cas9 knockout of Gcm2, we efficiently produced parathyroid deficient embryos for BC. In these embryos, mESCs differentiated into endocrinologically mature PTGs that rescued Gcm2 knockout mice from neonatal death. The mESC-derived PTGs responded well to extracellular calcium, restoring calcium homeostasis on transplantation into mice surgically rendered hypoparathyroid. These results demonstrate that BC can produce functional
endocrine organs and constitute a concept in treatment of hypoparathyroidism.

Academic Significance and Societal Importance of the Research Achievements

受精卵ゲノム編集による効率的な臓器欠損胚の作製と胚盤胞補完法とを組み合わせることが、臓器補完の有用な手段となることが示唆された。Ca応答性のある機能的な副甲状腺を作製に成功したこと、多能性幹細胞由来の副甲状腺が移植臓器として有用であったことは、将来のヒト-動物間胚盤胞補完法によるヒト多能性幹細胞からの副甲状腺作製と臨床応用の可能性を示すものである。

Report

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

    (9 results)

All 2023 2022 2021

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 6 results)

  • [Journal Article] Functional calcium-responsive parathyroid glands generated using single-step blastocyst complementation2023

    • Author(s)
      Kano Mayuko、Mizuno Naoaki、Sato Hideyuki、Kimura Takaharu、Hirochika Rei、Iwasaki Yasumasa、Inoshita Naoko、Nagano Hisato、Kasai Mariko、Yamamoto Hiromi、Yamaguchi Tomoyuki、Suga Hidetaka、Masaki Hideki、Mizutani Eiji、Nakauchi Hiromitsu
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 120 Issue: 28 Pages: 1-1

    • DOI

      10.1073/pnas.2216564120

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Xenotransplantation and interspecies organogenesis: current status and issues.2022

    • Author(s)
      Mayuko Kano , Eiji Mizutani , Shota Homma , Hideki Masaki , Hiromitsu Nakauchi
    • Journal Title

      Frontiers in endocrinology

      Volume: 13 Pages: 963282-963282

    • DOI

      10.3389/fendo.2022.963282

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] 発生工学を応用した 機能的な副甲状腺の再生2023

    • Author(s)
      加納麻弓子
    • Organizer
      第33 回臨床内分泌代謝 Update
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Toward endocrine organ regeneration using pluripotent stem cells2023

    • Author(s)
      Mayuko Kano
    • Organizer
      11th Seoul International Congress of Endocrinology and Metabolism (SICEM 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 多能性幹細胞を用いた内分泌臓器再生2022

    • Author(s)
      加納 麻弓子
    • Organizer
      第40回内分泌代謝学サマーセミナー
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] カルシウム応答性を有する機能的な副甲状腺再生2021

    • Author(s)
      加納 麻弓子、水野 直彬、水谷 英二、正木 英樹、須賀 英隆、中内 啓光
    • Organizer
      日本内分泌学会若手研究奨励賞(YIA)
    • Related Report
      2021 Research-status Report
  • [Presentation] Generation and functional analysis of neuroendocrine organs using pluripotent stem cells2021

    • Author(s)
      Mayuko Kano, Eiji Mizutani, Naoaki Mizuno,Hidetaka Suga, Hiroshi Arima, Hiromitsu Nakauchi
    • Organizer
      日本神経内分泌学会New waves in neruoendocrinology
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Regeneration of Parathyroid Glands that Function in Response to Calcium2021

    • Author(s)
      Mayuko Kano, Eiji Mizutani, Naoaki Mizun,Hidetaka Suga, Hiromitsu Nakauchi
    • Organizer
      JES-KES Joint Symposium at SICEM 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Regeneration of Parathyroid Glands that Function in Response to Calcium2021

    • Author(s)
      Mayuko Kano
    • Organizer
      KES Metabolic Bone Disease Study Group
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited

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

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