Circular single-stranded DNA for multi-target miRNA therapy
Chinese Chemical SocietyPeer-Reviewed Publication
Professor Dongsheng Liu of Tsinghua University, Professor Ziyang Hao of Capital Medical University, and Researcher Yuanchen Dong of the Institute of Chemistry, Chinese Academy of Sciences, have collaborated to develop a circular single-stranded DNA molecule capable of simultaneously silencing multiple miRNAs. This molecule can be used for multi-gene synergistic tumor therapy. Based on the KIMU principle, the circular single-stranded DNA molecule, an anti- miRNA oligonucleotide (circAMO), can be synthesized with high selectivity and high yield by adjusting the length of the DNA clamp. The unique covalently closed circular structure endows circAMO with high biostability, allowing long-term intracellular gene regulation without any chemical modifications. By designing multiple miRNA binding sites in circAM, one circAMO can simultaneously inhibit multiple oncogenic miRNAs and upregulate the levels of downstream mRNAs, ultimately inhibiting tumor cell proliferation, migration, and invasion, as well as increasing apoptosis. This strategy provides a new research tool and platform for multi-target gene therapy. The article was published as an open access research article in CCS Chemistry, the flagship journal of the Chinese Chemical Society.
- Journal
- CCS Chemistry