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EXP001155

Paper

A biodegradable stearylated peptide with internal disulfide bonds for efficient delivery of siRNA in vitro and in vivo (2015)

Peptide

SHRss2

Sequence: Stearyl-HHHCRRRRRC

RNA

siRNA

All experiment fields

Experiment Id EXP001155
Paper A biodegradable stearylated peptide with internal disulfide bonds for efficient delivery of siRNA in
Peptide SHRss2
Delivery Success Class no
In Vivo Flag yes
Uptake Confirmed yes
Label Confidence high
In Vitro Functional Effect yes
Endosomal Escape Evidence yes
Peptide Concentration N/P=10 formulation; polymer amount depends on N/P (1.06 µg polymer per 1 µg siRNA corresponds to N/P=1)
Rna Concentration 70 nM siLuc (gene silencing vs N/P, 24 h); also tested 100 nM for decay kinetics
Mixing Ratio N/P ratio (amine/phosphate); optimum reported N/P=10
Formulation Format Electrostatic polyplex (SHR/SHRss variants with siRNA) prepared in PBS pH 6.0, incubated 30 min
Formulation Components SHRss (or control polymer) + siLuc in PBS (pH 6.0)
Size Nm 163.00
Zeta Mv 24.60
Model Scope in_vivo
Model Type in vitro
Cell Lines Or Primary Cells Luc-Hela cells
Animal Model
Administration Route
Output Type In vitro functional gene silencing (luciferase activity reduction)
Output Value Significant luciferase knockdown; SHRss2 reported highest silencing at N/P=10 vs other SHRss and SHR
Output Units
Output Notes Reporter assay at 24 h post-transfection; luminescence normalized to protein; SHRss2 also showed slower knockdown decay over 5 days after single 100 nM siLuc treatment.
Toxicity Notes Low cytotoxicity reported for SHRss polyplexes (>90% viability up to 200 nM siRNA under transfection conditions).
Curation Notes