A Peptide Nucleic Acid-Aminosugar Conjugate Targeting Transactivation Response Element of HIV-1 RNA Genome Shows a High Bioavailability in Human Cells and Strongly Inhibits Tat-Mediated Transactivation of HIV-1 Transcription - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Medicinal Chemistry Année : 2012

A Peptide Nucleic Acid-Aminosugar Conjugate Targeting Transactivation Response Element of HIV-1 RNA Genome Shows a High Bioavailability in Human Cells and Strongly Inhibits Tat-Mediated Transactivation of HIV-1 Transcription

I. Das
  • Fonction : Auteur
J. Désiré
  • Fonction : Auteur
D. Manvar
  • Fonction : Auteur
I. Baussanne
  • Fonction : Auteur
V.N. Pandey
  • Fonction : Auteur
  • PersonId : 942909
J.L. Decout
  • Fonction : Auteur
  • PersonId : 837430

Résumé

The 6-aminoglucosamine ring of the aminoglycoside antibiotic neomycin B (ring II) was conjugated to a 16-mer peptide nucleic acid (PNA) targeting HIV-I TAR RNA. For this purpose, we prepared the aminoglucosamine monomer 15 and attached it to the protected PNA prior to its cleavage from the solid support. We found that the resulting PNA aminoglucosamine conjugate is stable under acidic conditions, efficiently taken up by the human cells and fairly distributed in both cytosol and nucleus without endosomal entrapment because cotreatment with endosome-disrupting agent had no effect on its cellular distribution. The conjugate displayed very high target specificity in vitro and strongly inhibited Tat mediated transactivation of HIV-1 LTR transcription in a cell culture system. The unique properties of this new class of PNA conjugate suggest it to be a potential candidate for therapeutic application.

Dates et versions

hal-00838407 , version 1 (25-06-2013)

Identifiants

Citer

I. Das, J. Désiré, D. Manvar, I. Baussanne, V.N. Pandey, et al.. A Peptide Nucleic Acid-Aminosugar Conjugate Targeting Transactivation Response Element of HIV-1 RNA Genome Shows a High Bioavailability in Human Cells and Strongly Inhibits Tat-Mediated Transactivation of HIV-1 Transcription. Journal of Medicinal Chemistry, 2012, 55 (13), pp.6021-6032. ⟨10.1021/jm300253q⟩. ⟨hal-00838407⟩

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