Abstract:Abstract. In order to be active, antisense oligonucleotides (ASOs) should be delivered to the nuclei of cells. The lack of effect of some ASOs might be explained by poor distribution inside the cell. Here we describe the study of the intracellular distribution of an ASO in a leukemic cell line in which the ASO was not showing an effect. We used fluorescein isothiocyanate-labeled ASO and fluorescent or confocal microscopy. The internalised ASO was localized in a specific intracellular juxtanuclear region, showi… Show more
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