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EXP001576

Paper

Synthesis, cellular uptake and HIV-1 Tat-dependent trans-activation inhibition activity of oligonucleotide analogues disulphide-conjugated to cell-penetrating peptides (2005)

Peptide

Tat (48–58)

Sequence: GRKKRRQRRRP

RNA

antisense oligonucleotide analogue (anti-TAR)

All experiment fields

Experiment Id EXP001576
Paper Synthesis, cellular uptake and HIV-1 Tat-dependent trans-activation inhibition activity of oligonucl
Peptide Tat (48–58)
Delivery Success Class no
In Vivo Flag no
Uptake Confirmed yes
Label Confidence high
In Vitro Functional Effect yes
Endosomal Escape Evidence yes
Peptide Concentration Dose range tested (≤1 µM typical) delivered with Lipofectamine 2000 (3 h)
Rna Concentration Dose range tested (≤1 µM typical) delivered with Lipofectamine 2000 (3 h)
Mixing Ratio Covalent 1:1 peptide:oligo (disulphide) + cationic lipid formulation
Formulation Format peptide–oligo conjugate formulated with cationic lipid (Lipofectamine 2000)
Formulation Components Tat–oligo B (C-terminal Tat conjugate; conjugate 4) + Lipofectamine 2000
Size Nm
Zeta Mv
Model Scope in_vitro
Model Type in vitro
Cell Lines Or Primary Cells HeLa Tet-Off/Tat/luc-f/luc-R stable reporter cells (Tat-dependent HIV LTR firefly luciferase; Renilla control)
Animal Model
Administration Route
Output Type Functional steric-block activity (Tat-dependent firefly luciferase inhibition)
Output Value Dose-dependent inhibition of firefly luciferase (Tat-dependent trans-activation) with minimal Renilla effect (specific)
Output Units
Output Notes With cationic lipid (Lipofectamine 2000), certain conjugates showed dose-dependent inhibition of firefly luciferase (Tat-dependent trans-activation) with minimal effect on Renilla for active conjugates.
Toxicity Notes Viability (CellTiter) used for normalization in reporter assay.
Curation Notes