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Development of tumor antigen peptide identification method based on MHC immunopeptidome in dogs

Research Project

Project/Area Number 21K14979
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionOkayama University of Science

Principal Investigator

Miyamae Jiro  岡山理科大学, 獣医学部, 助教 (40846143)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsがん免疫療法 / イヌ / MHC / ペプチドワクチン / イヌMHC / 主要組織適合性複合体 / ペプチド / 主要組織適合性複合体(MHC) / DLA / がん免疫
Outline of Research at the Start

がんペプチドワクチンは強力な抗腫瘍免疫を誘導できるが、その開発にはMHC分子により提示されるがんペプチドの情報が必須となる。本研究では65%以上のイヌで検出される保有率の高いMHC分子を対象として、①. イヌMHC分子により提示されるペプチドの網羅解析(MHCペプチドーム解析)を実施し、②. 得られたペプチド情報からイヌMHC結合ペプチドの予測システムを構築し、さらに、③. イヌリンパ球を用いて予測されたがんペプチドの免疫原性評価を実施することで、がんペプチドの同定を試みる。

Outline of Final Research Achievements

Major histocompatibility complex (MHC) immunopeptidome analysis for dog MHC (Dog leukocyte antigen: DLA) class I (DLA-I)molecules was performed to elucidate peptides that are presented by these molecules. Consequently, in three DLA-I molecules that are common in dogs, the peptides presented by those molecules were identified. In addition, by retraining a published tool for predicting MHC-binding peptides in humans using DLA-I binding peptides identified in this study, we established the system for predicting DLA-binding peptides.

Academic Significance and Societal Importance of the Research Achievements

本研究では3種類のDLA分子を対象としてDLA結合ペプチドを解明し、さらに、同定したDLA結合ペプチドを用いて、DLA結合ペプチド予測システムを構築することができた。この予測システムにより、Neoantigen(がん特異的な遺伝子変異に起因するがん抗原)や腫瘍関連抗原のアミノ酸配列から、DLA分子に結合するがん抗原ペプチドの候補を瞬時に選択することが可能となった。よって、本ツールは今後のイヌのがんワクチン研究の進展に大きく貢献すると考えられる。また、本研究の手法を用いて、他のDLA分子に提示されるペプチド配列を解明することで、イヌ全体を網羅可能ながんワクチン開発基盤の構築に繋がると考えられる。

Report

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

    (6 results)

All 2023 2022 Other

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

  • [Int'l Joint Research] The University of Western Australia(オーストラリア)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Large-Scale Polymorphism Analysis of Dog Leukocyte Antigen Class I and Class II Genes (DLA-88, DLA-12/88L and DLA-DRB1) and Comparison of the Haplotype Diversity between Breeds in Japan2023

    • Author(s)
      Miyamae Jiro、Okano Masaharu、Katakura Fumihiko、Kulski Jerzy K.、Moritomo Tadaaki、Shiina Takashi
    • Journal Title

      Cells

      Volume: 12 Issue: 5 Pages: 809-809

    • DOI

      10.3390/cells12050809

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dog leukocyte antigen class II alleles and haplotypes associated with meningoencephalomyelitis of unknown origin in Chihuahuas2023

    • Author(s)
      OSHIMA Ayaka、ITO Daisuke、KATAKURA Fumihiko、MIYAMAE Jiro、OKANO Masaharu、NAKAZAWA Megu、KANAZONO Shinichi、MORITOMO Tadaaki、KITAGAWA Masato
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 85 Issue: 1 Pages: 62-70

    • DOI

      10.1292/jvms.22-0116

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Haplotype structures and polymorphisms of dog leukocyte antigen (DLA) class I loci shaped by intralocus and interlocus recombination events2022

    • Author(s)
      Miyamae Jiro、Okano Masaharu、Nishiya Kohei、Katakura Fumihiko、Kulski Jerzy K.、Moritomo Tadaaki、Shiina Takashi
    • Journal Title

      Immunogenetics

      Volume: 74 Issue: 2 Pages: 245-259

    • DOI

      10.1007/s00251-021-01234-5

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] イヌMHC多型の特徴と 幹細胞他家移植への展望2023

    • Author(s)
      宮前二朗、岡野雅春、片倉文彦、坂井学、森友忠昭、椎名隆
    • Organizer
      日本再生医療学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Patent(Industrial Property Rights)] DLA適合のイヌドナーを選択する方法2023

    • Inventor(s)
      宮前二朗、菅原広隆
    • Industrial Property Rights Holder
      宮前二朗、菅原広隆
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2024-01-30  

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