Abstract:
:The 6-aminoglucosamine ring of the aminoglycoside antibiotic neomycin B (ring II) was conjugated to a 16-mer peptide nucleic acid (PNA) targeting HIV-1 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.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Das I,Désiré J,Manvar D,Baussanne I,Pandey VN,Décout JLdoi
10.1021/jm300253qsubject
Has Abstractpub_date
2012-07-12 00:00:00pages
6021-32issue
13eissn
0022-2623issn
1520-4804journal_volume
55pub_type
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