• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2022 Fiscal Year Final Research Report

Immunometabolism-targeted cancer therapy in HNSCC

Research Project

  • PDF
Project/Area Number 20K09706
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56050:Otorhinolaryngology-related
Research InstitutionUniversity of Yamanashi

Principal Investigator

Ishii Hiroki  山梨大学, 大学院総合研究部, 講師 (40568250)

Co-Investigator(Kenkyū-buntansha) 櫻井 大樹  山梨大学, 大学院総合研究部, 教授 (10375636)
吉村 健太郎  山梨大学, 大学院総合研究部, 講師 (70516921)
Project Period (FY) 2020-04-01 – 2023-03-31
KeywordsMDSCs / 免疫原性細胞死 / ATP / パクリタキセル
Outline of Final Research Achievements

Immunosuppressive microenvironment in advanced head and neck cancer patient clinically arises myeloid derived suppressor cells (MDSCs)-mediated attenuation of therapeutic efficacy. To establish novel therapeutic strategies targeting the metabolic reprogramming occur in MDSDs. Single-cell RNA sequencing of tumor-infiltrating MDSCs from 18 patients with advanced oropharyngeal carcinoma did not show any targets associated with metabolic reprogramming. However, low-dose paclitaxel enabled to increase oxidative phosphorylation pathway in HNSCC tumor cells, suggesting that it is possible to induce ATP-mediated immunogenic cell death. These findings imply the possibility of combined chemoimmunotherapy.

Free Research Field

腫瘍免疫

Academic Significance and Societal Importance of the Research Achievements

本研究を通して、直接的に抗腫瘍免疫を抑制する免疫抑制細胞の代謝変化を標的とした因子を同定することはできなかったが、低用量の抗がん剤併用が免疫誘導因子の一つであるATPを腫瘍細胞内に誘導できることを確認した。低用量抗がん剤の毒性の低さに加えて、微小環境内に免疫細胞を誘導する細胞死を誘導できるため、現在の免疫チェックポイント阻害剤の効果を減弱させる機序として判明している、免疫細胞の排除機構を改善を目標とした治療戦略に応用できる可能性がある。

URL: 

Published: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi