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

Cell to Cell Interactions Orchestrated by Exosomal MiRNAs

Research Project

Project/Area Number 17H04352
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Ophthalmology
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Kinoshita Shigeru  京都府立医科大学, 医学(系)研究科(研究院), 教授 (30116024)

Co-Investigator(Kenkyū-buntansha) 上野 盛夫  京都府立医科大学, 医学(系)研究科(研究院), 助教 (40426531)
羽室 淳爾  京都府立医科大学, 医学(系)研究科(研究院), 客員教授 (80536095)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2017: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Keywords再生医療 / 角膜内皮細胞 / 脱分化 / ミトコンドリア / エピジェネティクス / 代謝リプログラミング / 細胞同調 / miRNA / 細胞・組織 / 移植・再生医療 / 水疱性角膜症 / エキソゾーム / p53 / c-Myc / RhoA / ヒト角膜内皮細胞 / 細胞相転移 / SASP / 細胞外マトリックス
Outline of Final Research Achievements

Corneal endothelial dysfunction such as bullous keratopathy (BK), Fuchs’ endothelial corneal dystrophy (FECD) can be restored only with corneal transplantation. We have recently developed a cell-injection therapy using cultured human corneal endothelial cells (cHCECs) (New Eng J Med. 2018). Cultured HCECs have an inclination towards cell-state transition (CST). The expression of miRNAs are essential in the regulation of many cellular processes closely linked to CST in cHCECs.In this current study, we present the first finding that the lowered miRs in pathogenic tissues may induce the groups of exosomal miRs reliant on the depolarized CD44++~+++ pathogenic HCECs. IFN-γ, IL-17, and PDGF-bb could affect the prognosis of keratoplasty.MiRNAs secreted into the aqueous humors (AH) may regulate the expression of cytokines in the neighboring HCECs. Also,the functional metabolites in the AH of BK patients were identified by LC-MS and GC-MS.

Academic Significance and Societal Importance of the Research Achievements

本研究で確認された臨床効果に優れる培養ヒト角膜内皮規格細胞のミトコンドリア機能の解析やエネルギー代謝特性の明確化は、細胞注入再生医療全般に対し新しい方向性を示唆するものである。解糖系の代謝酵素の高進やグルタミンの細胞内取り込みにより代謝系のリプログラミングが引き起こされることで脱分化細胞からの分化の破綻が生じるとの考え方は学術的にも新しい。臨床効果の劣る非規格細胞における子の分化破綻機構に、ミトコンドリア内でなく細胞質や核内に存在する AcetylCoAがEpigenetic多遺伝子発現に係り非規格細胞の形質発現を制御するとの考え方は国際的にも全く新しい知見である。。

Report

(3 results)
  • 2019 Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (3 results)

All 2019 2018 2017

All Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] miR/Exosomeによる角膜内皮機能の制御2019

    • Author(s)
      浅田和子, 上野盛夫, 戸田宗豊, 外園千恵, 木下茂, 羽室淳爾
    • Organizer
      角膜カンファランス2019
    • Related Report
      2018 Annual Research Report
  • [Presentation] Integral analysis of cytokines and miRNAs in the aqueous humor of bullous keratopathy patients to develop prognostic biomarkers2018

    • Author(s)
      Morio Ueno, Keigo Yoshii, Tomoko Fujita, Asako Uehara, Kazuko Asada, Chie Sotozono, Shigeru Kinoshita, Junji Hamuro
    • Organizer
      2018XXIII Biennial Meeting of the International Society for Eye Research
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Concomitant Evaluation of a Panel of Exosomes and MiRs Playing Roles in the Pathogenesis for Human Corneal Endothelial Dysfunction2017

    • Author(s)
      羽室 淳爾
    • Organizer
      Annual meeting-ISEV2017, Toronto, Canada,18-21, 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

URL: 

Published: 2017-04-28   Modified: 2022-03-04  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi