Abstract

Synthetic oligonucleotides are attracting considerable interest as potential therapeutic agents for the selective inhibition of gene expression. The attainment of effective cellular delivery however remains a problem. The conjugation of oligonucleotides to cell penetrating peptides is one of the most promising alternatives, that is being currently investigated to improve the uptake efficiency of oligonucleotides. The synthesis of peptide–oligonucleotide conjugates (POC) is however still a problem. Work from our laboratory has attempted to address the problem of POC synthesis by using the chemoselective oxime bond formation. Herein, we present an account of the work accomplished in our laboratory in the recent past, concerning the conjugation of various reporters to oligonucleotides. To cite this article: Y. Singh et al., C. R. Chimie 8 (2005). L'utilisation des oligonucléotides en tant qu'outils thérapeutiques pour l'inhibition de l'expression génétique connaît un essor considérable. Toutefois, la faible pénétration cellulaire des oligonucleotides constitue un problème majeur. L'une des solutions pour y remédier est l'accrochage de motifs peptidiques sur l'oligonucléotide. Nous décrivons dans cette revue notre contribution concernant la mise au point d'une méthode de synthèse très efficace et sélective basée sur la formation de liaison oxime. Pour citer cet article : Y. Singh et al., C. R. Chimie 8 (2005).

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