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EXP000593

Paper

The spacer arm length in cell-penetrating peptides influences chitosan/siRNA nanoparticle delivery for pulmonary inflammation treatment (2015)

Peptide

R9G10

Sequence: RRRRRRRRRGGGGGGGGGG

RNA

siRNA

All experiment fields

Experiment Id EXP000593
Paper The spacer arm length in cell-penetrating peptides influences chitosan/siRNA nanoparticle delivery f
Peptide R9G10
Delivery Success Class yes
In Vivo Flag yes
Uptake Confirmed yes
Label Confidence high
In Vitro Functional Effect yes
Endosomal Escape Evidence
Peptide Concentration Defined by degree of substitution (~2 peptides per chitosan chain)
Rna Concentration 100 pmol/mL (in vitro); 1 μg per mouse (in vivo)
Mixing Ratio Chitosan/siRNA wt/wt = 50
Formulation Format Oligopeptide-modified chitosan/siRNA nanoparticles
Formulation Components Chitosan backbone covalently grafted with R9Gn peptides
Size Nm 170.00
Zeta Mv 7.00
Model Scope in_vivo
Model Type in vitro / in vivo
Cell Lines Or Primary Cells A549
Animal Model TiO2-induced airway inflammation mouse model
Administration Route Intratracheal
Output Type Gene silencing; lung inflammation reduction
Output Value ~80% knockdown in vitro; ~71% MIF reduction in vivo
Output Units
Output Notes Lead formulation with optimal spacer length
Toxicity Notes Low toxicity in vitro and in vivo
Curation Notes