Journal of Jilin University(Medicine Edition) ›› 2025, Vol. 51 ›› Issue (6): 1736-1746.doi: 10.13481/j.1671-587X.20250631

• Review • Previous Articles    

Research progress in regulation of deoxyribozyme activity and its application in biomedical field

Yuanyuan LI1,Xin LIU1,Tingshuang XU2()   

  1. 1.Institute of AIDS and Virology,First Hospital,Jilin University,Changchun 130021,China
    2.Public Experimental Platform,First Hospital,Jilin University,Changchun 130021,China
  • Received:2024-09-05 Accepted:2024-10-20 Online:2025-11-28 Published:2025-12-15
  • Contact: Tingshuang XU E-mail:xuts@jlu.edu.cn

Abstract:

RNA-cleaving deoxyribozymes (DNAzymes) are the DNA molecules with catalytic RNA cleavage activity, abd they can cleave the RNA substrates with high specificity with the advantages such as high specificity, no permanent impact on the genome, simple design and sequence- programmable, giving them great potential in biosensing and disease therapy. However, off-target activation of deoxyribozyme in vivo or complex biological environments limits their sensitivity and selectivity in various applications. Recent studies have focused on the chemical modification of deoxyribozymes, precise control for their catalytic activity its performed by introducing specific chemical groups; in addition, by combining deoxyribonucleases with aptamers, their precise recognition and efficient cleavage of target molecules can be realized; and the deoxyribozyme sequences can be used for logical operations and the development of molecular computers after suitable design. In this review, various approaches to the modification and design of DNAzymes were comprehensively discussed, with their unique advantages and superiority in biosensing and gene therapy, including examples of chemically and structurally modified RNA-cleaving depxurobozyme for therapeutic and sensing applications in the recent years.Ultimately, the review discussed the challenges and prospects of RNA-cleaving DNAzymeby for its applications in disease diagnostic and therapy, aiming to provide the reference farthe further application of deoxyribozyme in related fields.

Key words: Deoxyribozyme, Biosensor, Gene therapy, DNA nanostructures, Fluorescence probe

CLC Number: 

  • Q554