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Proteomics analysis of serum extracellular vesicles from renal cell carcinoma treated with immune checkpoint inhibitors

Research Project

Project/Area Number 18K16696
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Wang Cong  大阪大学, 医学部附属病院, 医員 (70783893)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords免疫チェックポイント阻害薬 / プロテオーム解析 / エクソソーム / 免疫チェックポイント阻害剤 / 免疫細胞 / 腎癌 / 網羅的タンパク解析
Outline of Final Research Achievements

In our study, we identified proteins which is uniquely upregulated or downregulated in peripheral T cells of advanced kidney cancer patients by means of proteome analysis. We already collected plasma samples from kidney cancer patients before anti-PD-1 treatment (nivolumab) and at 3, 6 months after starting nivolumab. Now, we are trying to quantitate candidate proteins identified previously using these plasma samples, which will be predictive markers in addressing patients who respond to immune checkpoint inhibitors.

Academic Significance and Societal Importance of the Research Achievements

現在腎細胞癌を含む多くの癌腫において免疫チェックポイント阻害薬(ICI)が適応となったが、奏効率は限定的であり、奏効予測マーカーの開発が急務である。我々は進行性腎細胞癌において健常人と比較し、有意に増減する候補タンパクを同定しており、現在PD-1阻害剤を使用した症例において、経時的に採取した血漿を用いて、先述の候補タンパクの定量を試みている。これにより奏効例に特徴的な候補タンパクの変化が認められれば、ELISA法などによる非侵襲的な奏効予測マーカーの確立に繋がる。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2021-02-19  

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