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Development of biomarker for the efficacy and safety of immunotherapy using PD1/PDL1 glycosylation

Research Project

Project/Area Number 21K16749
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56030:Urology-related
Research InstitutionHirosaki University

Principal Investigator

Hirotaka Horiguchi  弘前大学, 医学研究科, 客員研究員 (90897951)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords膀胱癌 / PD-L1 / 術前補助化学療法 / PDL1 / MIB-1 / 糖鎖解析 / 免疫療法 / バイオマーカー / 糖鎖変化
Outline of Research at the Start

固形腫瘍に対する癌免疫療法は実臨床でも多くの患者に使用されているが、過半数以上には奏功せず、重篤な免疫関連有害事象も大きな問題である。分子マーカーを用いて有効な患者に有効な薬剤を投与されるべきであるが、分子マーカーとされるPDL1も有効性が低く、現状では免疫療法の効果を予測することは困難である。PDL1やPD1は糖タンパク質であり、これら分子の糖鎖修飾が機能に重要な役割を果たしていることから、PDL1やPD1の糖鎖修飾に着目した研究は新たな知見をもたらす可能性がある。本研究では、PDL1/PD1の糖鎖修飾とその変異検出系を確立し、これら分子を用いた治療効果予測バイオマーカーの開発を目指す。

Outline of Final Research Achievements

We aimed to develop a new biomarker by detecting changes in PD-L1/PD1 glycosylation. The analysis of PDL1-modified glycans in cultured cells was difficult because the glycan analyzer(GlyQ) had equipment trouble.We measured soluble PD-L1 using clinical specimens and examined the influence of neoadjuvant chemotherapy on PD-L1 expression. The results suggest that soluble PD-L1 may be different for diseases and therapeutic interventions. Immunostaining of 104 bladder cancer patients after neoadjuvant chemotherapy showed that PD-L1(+) was associated with high MIB-1 index, and resifual tumor with PD-L1(+) and high MIB-1 showed poor prognosis. These results suggests that PD-L1(+) and hign MIB-1 after neoadjuvant chemotherapy may be related to treatment resistance that correlate with prognosis.

Academic Significance and Societal Importance of the Research Achievements

本研究では、PDL1/PD1の糖鎖修飾の変化を検出することによる新規バイオマーカーの開発を目指したが、これは達成できなかった。しかし、臨床検体におけるPD-L1の発現意義について検討し、術前補助化学療法においてその変化に意義があることが示唆された。一般に筋層浸潤性膀胱癌においてPD-L1の発現は予後不良であるが、術前補助化学療法によってその発現が誘導されることを明らかにした。最近の大規模臨床試験でPD-L1発現が術後補助療法の有効性を予測するバイオマーカーであることが示唆されている。その点からも本研究は集学的治療を考える上での術前補助化学療法の有効性を示唆する重要な研究であると考えられる。

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 Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results)

  • [Journal Article] Trends in the age of hospitalized patients with urological cancers: A 17‐year experience2023

    • Author(s)
      Ishii Noritaka、Hatakeyama Shingo、Miura Hikari、Tanaka Ryuma、Oishi Takuya、Horiguchi Hirotaka、Hosogoe Shogo、Fujita Naoki、Iwamura Hiromichi、Okamoto Teppei、Yamamoto Hayato、Yoneyama Takahiro、Hashimoto Yasuhiro、Ohyama Chikara
    • Journal Title

      International Journal of Urology

      Volume: 00 Issue: 7 Pages: 00-000

    • DOI

      10.1111/iju.15180

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Combination of Muscle Quantity and Quality Is Useful to Assess the Necessity of Surveillance after a 5-Year Cancer-Free Period in Patients Who Undergo Radical Cystectomy: A Multi-Institutional Retrospective Study.2023

    • Author(s)
      Fujita N, Momota M, Horiguchi H, Hamano I, Mikami J, Hatakeyama S, Ito H, Yoneyama T, Hashimoto Y, Nishimura S, Yoshikawa K, Ohyama C.
    • Journal Title

      Cancers (Basel)

      Volume: 15(5) Issue: 5 Pages: 1489-1489

    • DOI

      10.3390/cancers15051489

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Utility of the Age Discrepancy between Frailty-Based Biological Age and Expected Life Age in Patients with Urological Cancers2022

    • Author(s)
      Kyo Togashi, Shingo Hatakeyama, Osamu Soma, Kazutaka Okita, Naoki Fujita, Toshikazu Tanaka, Daisuke Noro, Hirotaka Horiguchi, Nozomi Uemura, Takuro Iwane, Teppei Okamoto, Hayato Yamamoto, Takahiro Yoneyama, Yasuhiro Hashimoto, Chikara Ohyama
    • Journal Title

      Cancers (Basel)

      Volume: 14 Issue: 24 Pages: 6229-6229

    • DOI

      10.3390/cancers14246229

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oncological and functional outcomes of female reproductive organ-sparing radical cystectomy and ileal neobladder construction2022

    • Author(s)
      Miura Hikari、Hatakeyama Shingo、Tanaka Toshikazu、Fujita Naoki、Horiguchi Hirotaka、Tanaka Ryuma、Noro Daisuke、Tokui Noriko、Okamoto Teppei、Yamamoto Hayato、Yoneyama Takahiro、Hashimoto Yasuhiro、Ohyama Chikara
    • Journal Title

      Urologic Oncology: Seminars and Original Investigations

      Volume: - Issue: 5 Pages: 254.e17-254.e24

    • DOI

      10.1016/j.urolonc.2022.11.018

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Significance of pelvic lymph node dissection during radical prostatectomy in high-risk prostate cancer patients receiving neoadjuvant chemohormonal therapy2022

    • Author(s)
      Hiromichi Iwamura, Shingo Hatakeyama, Takuma Narita, Yusuke Ozaki, Sakae Konishi, Hirotaka Horiguchi, Hirotake Kodama, Yuta Kojima, Naoki Fujita, Teppei Okamoto, Yuki Tobisawa, Tohru Yoneyama, Hayato Yamamoto, Takahiro Yoneyama, Yasuhiro Hashimoto, Chikara Ohyama
    • Journal Title

      Scientific reports

      Volume: 12 Issue: 1 Pages: 9675-9675

    • DOI

      10.1038/s41598-022-13651-x

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prognostic significance of the Ki67 index and programmed death-ligand 1 expression after radical cystectomy in patients with muscle-invasive bladder cancer2021

    • Author(s)
      Horiguchi Hirotaka、Hatakeyama Shingo、Yoneyama Tohru、Yoneyama Mihoko Sutoh、Tanaka Toshikazu、Fujita Naoki、Okamoto Teppei、Yamamoto Hayato、Yoneyama Takahiro、Yoshizawa Tadashi、Hashimoto Yasuhiro、Kawaguchi Toshiaki、Ohyama Chikara
    • Journal Title

      Urologic Oncology: Seminars and Original Investigations

      Volume: 39 Issue: 4 Pages: 238.e9-238.e17

    • DOI

      10.1016/j.urolonc.2020.11.029

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access

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

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