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Highly Sensitive Detection for HBV Driver Mutations and Construction of a PRS Model

Research Project

Project/Area Number 21K07997
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionTokyo Medical and Dental University (2023)
National Center for Global Health and Medicine (2021-2022)

Principal Investigator

Nishida Nao  東京医科歯科大学, 難治疾患研究所, 准教授 (50456109)

Co-Investigator(Kenkyū-buntansha) 大橋 順  東京大学, 大学院理学系研究科(理学部), 教授 (80301141)
吉住 朋晴  九州大学, 医学研究院, 教授 (80363373)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsターゲットキャプチャーシークエンシング / B型肝炎 / 体細胞変異 / ターゲットキャプチャーシークエンス / hepatocellular carcinoma / hepatitis B virus / 次世代シークエンサー / NGS / HCC / HBV / 肝がん / ドライバー変異 / PRS
Outline of Research at the Start

肝がん患者由来の肝細胞がん組織試料を対象としたがんゲノム解析を実施し、(1)肝がんドライバー変異の同定、(2)肝がんドライバー変異の高感度検出系の開発、(3)肝発がんリスクを推定するPRS(Polygenic Risk Score)モデルの構築、を行う。リキッドバイオプシーや肝生検試料の中に微量に存在する肝がんドライバー変異を高感度かつ高精度に検出することが可能となれば、B型慢性肝炎患者の中で肝がんを発症するリスクの高い患者を囲い込むことで、適切な治療や投薬を行うことが可能になると期待される。

Outline of Final Research Achievements

The cancer genome analysis pipeline for detecting the mutation which existed in the liver cancer tissue at the low frequency was constructed. Targeted capture sequencing was performed on DNA extracted from 182 liver cancer tissue samples collected during the study period, and low-frequency mutations are currently being analyzed.
Liver tissue samples of all 672 hepatitis B patients were newly collected from collaborating institutes, and a model was constructed to predict the number of days until liver cancer developed. ROC analysis using cumulative probability of developing liver cancer (One year, three years from now.) showed that the model including 4 items (Blood test Age, sex, presence/absence of Log10AFP, HLA-A*33:03) had AUC=0.862 and 0.863, respectively.

Academic Significance and Societal Importance of the Research Achievements

本研究において、ディープシークエンスにより肝がんドライバー変異を高感度に検出する測定系を開発した。リキッドバイオプシーや肝生検試料の中に微量に存在する肝がんドライバー変異を高感度かつ高精度に検出することが可能となれば、B型慢性肝炎患者の中で肝がんを発症するリスクの高い患者を囲い込むことが可能となる。治療が必要な患者を選択することで適切な治療や投薬を行うことが可能になると期待される。

Report

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

    (15 results)

All 2023 2022 2021

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (9 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Prediction Model with HLA-A*33:03 Reveals Number of Days to Develop Liver Cancer from Blood Test2023

    • Author(s)
      Nishida N, Ohashi J, Suda G, Chiyoda T, Tamaki N, Tomiyama T, Ogasawara S, Sugiyama M, Kawai Y, Khor SS, Nagasaki M, Fujimoto A, Tsuchiura T, Ishikawa M, Matsuda K, Yano H, Yoshizumi T, Izumi N, Hasegawa K, Sakamoto N, Mizokami M, Tokunaga K.
    • Journal Title

      Int J Mol Sci

      Volume: 24 Issue: 5 Pages: 4761-4761

    • DOI

      10.3390/ijms24054761

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Modern Japanese ancestry-derived variants reveal the formation process of the current Japanese regional gradations2023

    • Author(s)
      Watanabe Y, Ohashi J
    • Journal Title

      iScience

      Volume: 26 Issue: 3 Pages: 106130-106130

    • DOI

      10.1016/j.isci.2023.106130

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genome-Wide Association Study for Chronic Hepatitis B Infection in the Thai Population2022

    • Author(s)
      Ashouri S, Khor SS, Hitomi Y, Sawai H, Nishida N, Sugiyama M, Kawai Y, Posuwan N, Tangkijvanich P, Komolmit P, Tsuiji M, Shotelersuk V, Poovorawan Y, Mizokami M, Tokunaga K.
    • Journal Title

      Front Genet

      Volume: 13 Pages: 887121-887121

    • DOI

      10.3389/fgene.2022.887121

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Importance of HBsAg recognition by HLA molecules as revealed by responsiveness to different hepatitis B vaccines2021

    • Author(s)
      Nao Nishida, Masaya Sugiyama, Aiko Sakai, Katsushi Tokunaga, Masashi Mizokami et al.
    • Journal Title

      Sci Rep

      Volume: 11(1) Issue: 1 Pages: 3703-3703

    • DOI

      10.1038/s41598-021-82986-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genome-wide copy number variation analysis of hepatitis B infection in a Japanese population2021

    • Author(s)
      Kikuchi M, Kobayashi K, Nishida N, Sawai H, Sugiyama M, Mizokami M, Tokunaga K, Nakaya A
    • Journal Title

      Human Genome Variation

      Volume: 8 Issue: 1 Pages: 22-22

    • DOI

      10.1038/s41439-021-00154-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ゲノム解析が明らかにするB型肝炎由来肝がんのメカニズム2023

    • Author(s)
      西田奈央
    • Organizer
      『第21回 ゲノム医科学とバイオインフォマティクスの接点と集学研究』 “21st Front edge and fusion of genomic medicine and bioinformatics”
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Prediction model with HLA-A*33:03 reveals number of days for liver carcinogenesis2023

    • Author(s)
      Nao Nishida, Jun Ohashi, Yosuke Kawai, Takayo Tsuchiura, Miyuki Ishikawa, Katsushi Tokunaga
    • Organizer
      68th Annual Meeting of the Japan Society of Human Genetics (JSHG)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ゲノム解析が明らかにするB型肝炎由来肝がんのメカニズム2023

    • Author(s)
      西田奈央
    • Organizer
      2022年度 大学共同利用機関法人 情報・システム研究機構 国立遺伝学研究所 研究会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] ポリジェニックスコアの基礎2023

    • Author(s)
      大橋順
    • Organizer
      大阪大学 ポリジェニックスコアを勉強する会
    • Related Report
      2022 Research-status Report
  • [Presentation] ゲノム解析で明らかとなったHLA遺伝子と肝発がんの関連2022

    • Author(s)
      西田奈央, 杉山真也, 溝上雅史
    • Organizer
      第58回日本肝臓学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 2種類のHBワクチンに異なる応答性を示すHLA遺伝子型2022

    • Author(s)
      西田奈央、土浦貴代、石川美由紀、徳永勝士、溝上雅史
    • Organizer
      第30回日本組織適合性学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] HLA型ごとのHBV多様性解析によるB型肝癌の発症リスクの予測精度の向上2022

    • Author(s)
      杉山真也,西田奈央,溝上雅史
    • Organizer
      第58回日本肝臓学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] ヘプタバックス‐IIとビームゲンに対する応答性とHLA遺伝子の関連2021

    • Author(s)
      西田奈央, 杉山真也, 土浦貴代, 石川美由紀, 徳永勝士, 溝上雅史
    • Organizer
      日本人類遺伝学会第66回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ヘプタバックス-IIとビームゲンに対するワクチン応答性に関わる遺伝要因2021

    • Author(s)
      西田奈央, 杉山真也, 溝上雅史
    • Organizer
      第57回日本肝臓学会総会
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] B型肝炎ワクチン応答性に関わる遺伝因子2021

    • Inventor(s)
      西田奈央、溝上雅史、徳永勝士
    • Industrial Property Rights Holder
      西田奈央、溝上雅史、徳永勝士
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-028721
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

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

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