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Analysis of B7-H4 function in urological cancer and development of the new therapy of immunity

Research Project

Project/Area Number 16K11037
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Urology
Research InstitutionTokyo Metropolitan Tama Medical Center (Department of Clinical Research)

Principal Investigator

Yujiro Sato  東京都立多摩総合医療センター(臨床研究・教育研修センター(臨床研究部)), 泌尿器科, 医員 (40770871)

Co-Investigator(Kenkyū-buntansha) 東 剛司  東京都立多摩総合医療センター(臨床研究・教育研修センター(臨床研究部)), 泌尿器科, 部長 (50719854)
長瀬 泰  東京都立多摩総合医療センター(臨床研究・教育研修センター(臨床研究部)), 泌尿器科, 非常勤医員 (60221462)
久米 春喜  東京大学, 医学部附属病院, 教授 (10272577)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords腎細胞癌 / イムノチェックポイント / B7-H4 / 尿路悪性腫瘍 / ELISA / 癌 / 免疫学
Outline of Final Research Achievements

We detected high levels of soluble B7-H4 in the sera of 56% of patients with non-metastatic clear cell renal cell carcinoma versus only 10% of healthy donors. Elevated soluble B7-H4 levels were associated with changes in an elevated peripheral blood neutrophil count. The increase of soluble B7-H4 also was significantly associated with poor PFS and OS. Multivariate analysis showed that the elevation of the soluble B7-H4 level was an independent prognostic factor for PFS and OS.
Our data suggest that the association between serum soluble B7-H4 and peripheral blood neutrophil count, as well as the evaluation of serum soluble B7-H4 expression is a useful tool for predicting the prognosis of patients with non-metastatic clear cell renal cell carcinoma.

Academic Significance and Societal Importance of the Research Achievements

近年、進行癌における癌の微小環境の研究が注目を集め、進行している。これらの研究で、好中球を含めた骨髄系の細胞が、細胞障害性T細胞を抑制し癌の増殖に有利に作用していることが示されている。
可溶型B7-H4と好中球への作用機序のさらなる詳細な解析により、癌細胞の免疫逃避のメカニズムが明らかになる可能性がある。
このようにB7-H4を介した免疫系のさらなる解析により、新たな免疫治療への開発の可能性が期待できる。今後の研究の蓄積が待たれる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (1 results)

All 2018

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

  • [Journal Article] Serum soluble B7-H4 is a prognostic marker for patients with non-metastatic clear cell renal cell carcinoma2018

    • Author(s)
      Takeshi Azuma, Yujiro Sato, Tetsukuni Ohno, Miyuki Azuma and Haruki Kume
    • Journal Title

      PloS One

      Volume: 13(7)

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research

URL: 

Published: 2016-04-21   Modified: 2021-02-19  

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