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Generation of human iPSC-derived liver buds resistant to hepatitis B virus infection

Research Project

Project/Area Number 20K08952
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55010:General surgery and pediatric surgery-related
Research InstitutionThe University of Tokyo

Principal Investigator

Ueno Yasuharu  東京大学, 医科学研究所, 特任助教 (60375235)

Co-Investigator(Kenkyū-buntansha) 谷口 英樹  東京大学, 医科学研究所, 教授 (70292555)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsB型肝炎ウイルス / ヒトiPS細胞 / ゲノム編集 / 肝臓オルガノイド / HBV感染 / iPS細胞 / オルガノイド
Outline of Research at the Start

B型肝炎ウイルス(HBV)はヒト肝細胞に感染後、cccDNAと呼ばれる安定的な環状二本鎖DNAを形成し、排除が困難である。また、宿主細胞のゲノムに挿入されることも確認されている。本研究では、ヒトiPS細胞に対するゲノム編集技術、ヒトiPS細胞を用いたオルガノイド培養技術を活用し、HBVに感染耐性を示す肝臓組織の再構成法を検討する。また、遺伝子改変を施したヒトiPS細胞から創出される肝臓オルガノイドの移植法についての検討を行い、HBVに感染耐性を示す肝臓組織を創出するための手法を検討する。

Outline of Final Research Achievements

In this study, in order to create human liver tissues resistant to hepatitis B virus (HBV) infection, we investigated the generation of hepatocytes and liver organoids lacking the HBV infection receptor by genome editing of human iPS cells. In human iPS cells, NTCP, a candidate factor for HBV infection receptor, was knocked out, and hepatocytes and liver organoids were induced to evaluate resistance to HBV infection. human iPS cells lacking NTCP had the ability to differentiate into hepatocytes, and hepatocytes lacking NTCP showed resistance to infection with HBV. NTCP-deficient hepatocytes were resistant to HBV infection. Furthermore, we demonstrated that liver organoids can be generated from NTCP-deficient human iPS cells and that NTCP-deficient human liver organoids are resistant to infection against HBV. In conclusion, we have established a basic technology for generating liver tissue resistant to HBV infection using human iPS cells.

Academic Significance and Societal Importance of the Research Achievements

HBVはヒト肝細胞に選択的に感染し、核内で安定的な微小環状ゲノム(cccDNA)に変換される他、一部は宿主細胞のゲノム内に組み込まれる。 これまでにHBV感染細胞からcccDNAを排除する手法等が検討されてきたが、未だ有効な手法は確立されていない。本研究では、新規アプローチによるHBVの新規治療法開発に向け、肝臓の再生医療への応用が期待されているヒトiPS細胞由来肝臓オルガノイドにHBV感染耐性を付与するための手法の検討を実施した。ヒトiPS細胞を用いてHBVに感染耐性を示す肝臓組織を創出するための基盤技術が確立されたことにより、新たなB型肝炎治療法の研究開発の加速が期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (7 results)

All 2023 2022 2021 2020

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (1 results) Book (1 results)

  • [Journal Article] Establishment of experimental salivary gland cancer models using organoid culture and patientderived xenografting.2023

    • Author(s)
      Aizawa Y, Takada K, Aoyama J, Sano D, Yamanaka S, Seki M, Kuze Y, Ramilowski JA, Okuda R, Ueno Y, Nojima Y, Inayama Y, Hatakeyama H, Hatano T, Takahashi H, Nishimura G, Fujii S, Suzuki Y, Taniguchi H, Oridate N
    • Journal Title

      Cell Oncol.

      Volume: 46 Issue: 2 Pages: 409-421

    • DOI

      10.1007/s13402-022-00758-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of the nervous system in mouse liver.2022

    • Author(s)
      Koike N, Tadokoro T, Ueno Y, Okamoto S, Kobayashi T, Murata S, Taniguchi H
    • Journal Title

      World Journal of Hepatology

      Volume: 14 Issue: 2 Pages: 386-399

    • DOI

      10.4254/wjh.v14.i2.386

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of Urea Cycle Activity by Metabolic Flux Analysis Using Mass Spectrometry2022

    • Author(s)
      Ueno Yasuharu、Maeda Takuji、Okamoto Satoshi、Taniguchi Hideki
    • Journal Title

      Methods Mol Biol.

      Volume: 2544 Pages: 129-144

    • DOI

      10.1007/978-1-0716-2557-6_9

    • ISBN
      9781071625569, 9781071625576
    • Related Report
      2022 Annual Research Report
  • [Journal Article] Robust detection of undifferentiated iPSC among differentiated cells.2020

    • Author(s)
      Sekine K, Tsuzuki S, Yasui R, Kobayashi T, Ikeda K, Hamada Y, Kanai E, Camp JG, Treutlein B, Ueno Y, Okamoto S, Taniguchi H.
    • Journal Title

      Sci Rep.

      Volume: 10(1) Issue: 1 Pages: 10293-10293

    • DOI

      10.1038/s41598-020-66845-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Establishment of PDX‐derived salivary adenoid cystic carcinoma cell lines using organoid culture method2020

    • Author(s)
      Takada Kentaro、Aizawa Yoshihiro、Sano Daisuke、Okuda Ryo、Sekine Keisuke、Ueno Yasuharu、Yamanaka Shoji、Aoyama Jun、Sato Kaname、Kuwahara Tatsu、Hatano Takashi、Takahashi Hideaki、Arai Yasuhiro、Nishimura Goshi、Taniguchi Hideki、Oridate Nobuhiko
    • Journal Title

      International Journal of Cancer

      Volume: 148 Issue: 1 Pages: 193-202

    • DOI

      10.1002/ijc.33315

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 腫瘍関連マクロファージを含んだ次世代膵癌オルガノイドの作成2022

    • Author(s)
      田部 俊介、谷水 直樹、高橋 健太、竹内 健太、松尾 めぐみ、上野 康晴、大塚 将之、谷口 英樹
    • Organizer
      第81回日本学会年会
    • Related Report
      2022 Annual Research Report
  • [Book] 専門医のための消化器病学 第3版(ヒト癌オルガノイド再構成技術を活用した薬剤感受性評価)2021

    • Author(s)
      下瀬川 徹、渡辺 守(上野康晴、谷口英樹)
    • Total Pages
      736
    • Publisher
      医学書院
    • ISBN
      9784260045797
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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