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

2024 Fiscal Year Final Research Report

Development of gene-based therapeutic approach for Down syndrome using novel genome editing technology

Research Project

  • PDF
Project/Area Number 21K19448
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 52:General internal medicine and related fields
Research InstitutionOsaka University

Principal Investigator

Kitabatake Yasuji  大阪大学, 大学院医学系研究科, 教授 (80506494)

Project Period (FY) 2021-07-09 – 2025-03-31
Keywordsダウン症候群 / iPS細胞 / ゲノム編集 / 遺伝子治療
Outline of Final Research Achievements

Down syndrome is a representative pediatric genetic disorder. The applicants have previously identified DYRK1A as a causative gene responsible for neurodevelopmental abnormalities in Down syndrome. To develop a gene therapy for Down syndrome, they employed a combination of CRISPR-Cas3 and allele-specific SNPs to correct the copy number of DYRK1A. An allele-specific SNP located near the DYRK1A gene was identified, and a crRNA capable of recognizing this SNP was designed. Application of CRISPR-Cas3 led to a reduction in DYRK1A expression and subsequent improvement of the phenotype. Thus, the system has been shown to be effective in vitro, and further investigations in vivo are planned.

Free Research Field

小児科学

Academic Significance and Societal Importance of the Research Achievements

ダウン症候群は700人に1人と高い発症頻度であり、知的障害をもたらす遺伝性疾患では最多である。さらに50年前にはダウン症者の平均寿命は約3歳であったにもかかわらず、医療の進歩により現在では約60歳であり、この50年間で50年以上伸びた。この急激な変化により、これまで気付かれなかった成人期の認知障害が近年大きな問題として浮かび上がってきているがその研究はまったく進まず治療法もない。本研究課題においてえられる成果は、これまで皆無であったダウン症の遺伝子治療への道を拓くものであり、臨床医療への応用が期待される。

URL: 

Published: 2026-01-16  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi