UNC7938

UNC10217938A is a 3-deazapteridine analog with strong oligonucleotide enhancing effects. UNC10217938A enhances oligonucleotides effects by modulating their intracellular trafficking and release from endosomes. UNC10217938A also enhances the effects of antisense and siRNA oligonucleotides[1].

Research Areas >> Others

Signaling Pathways >> Others >> Others

UNC10217938A strongly enhances luciferase induction in HelaLuc705 cells when used in the 5-25 µM range and are substantially more effective and potent than Retro-1. As compared to splice switching oligonucleotide (SSO) alone, UNC10217938A provids a 60-fold enhancement at 10 µM and 220-fold at 20 µM, in contrast to a 11-fold enhancement for 100 µM Retro-1[1]. UNC10217938A can substantially enhance effects of receptor targeted oligonucleotide conjugates. UNC10217938A also can enhance effects of uncharged morpholino oligonucleotides as well as negatively charged oligonucleotides[1]. Exposure of cells to UNC10217938A leads to a major reduction in co-localization of the TAMRA-oliogonucleotide with the late endosome marker Rab7, but had little effect on co-localization with the lysosomal marker LAMP-1. UNC10217938A causes partial release of oligonucleotide from late endosomes to the cytosol followed by nuclear accumulation[1].

Systemic treatment with SSO623 followed by administration of UNC10217938A (7.5 mg/kg; intravenous injection) produces distinct increases in EGFP fluorescence in liver, kidney and heart in EGFP654 mice[3].

[1]. Yang B, et al. High-throughput screening identifies small molecules that enhance the pharmacological effects of oligonucleotides. Nucleic Acids Res. 2015 Feb 27;43(4):1987-96.