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EXP001411

Paper

Solid formulation of cell-penetrating peptide nanocomplexes with siRNA and their stability in simulated gastric conditions (2012)

Peptide

PepFect 14 (PF14)

Sequence: Stearyl-AGYLLGKLLOOLAAAALOOLL-NH2

RNA

siRNA

All experiment fields

Experiment Id EXP001411
Paper Solid formulation of cell-penetrating peptide nanocomplexes with siRNA and their stability in simula
Peptide PepFect 14 (PF14)
Delivery Success Class no
In Vivo Flag no
Uptake Confirmed no
Label Confidence high
In Vitro Functional Effect yes
Endosomal Escape Evidence
Peptide Concentration Encoded by peptide:siRNA molar ratio (MR); typical MR30–MR40
Rna Concentration 50 nM (MR30) used for SGF stability testing; incubated in SGF ± pepsin before transfection
Mixing Ratio PF14:siRNA molar ratio (MR) 20–40 screened; best MR depends on serum conditions
Formulation Format Solid-dispersion formulation of PF14/siRNA nanocomplexes in mannitol (5%) (pre-incubated in SGF)
Formulation Components PF14 + siRNA nanocomplexes dispersed in mannitol (5%) and dried (speed-vac) then reconstituted; incubated in simulated gastric fluid (pH ~1.2) ± pepsin
Size Nm 149.00
Zeta Mv
Model Scope in_vitro
Model Type in vitro
Cell Lines Or Primary Cells HEK 293 luciferase-stable (human embryonic kidney)
Animal Model
Administration Route
Output Type Luciferase knockdown after SGF incubation
Output Value
Output Units
Output Notes Solid formulation retained most RNAi activity after 30 min in simulated gastric fluid (highly acidic), even with pepsin; longer incubations with pepsin reduced activity.
Toxicity Notes
Curation Notes