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EXP001690

Paper

Arginine-rich cell-penetrating peptide dramatically enhances AMO-mediated ATM aberrant splicing correction and enables delivery to brain and cerebellum (2011)

Peptide

(RXRRBR)2XB

Sequence: (RXRRBR)(RXRRBR)XB

RNA

AMO (antisense morpholino oligonucleotide)

All experiment fields

Experiment Id EXP001690
Paper Arginine-rich cell-penetrating peptide dramatically enhances AMO-mediated ATM aberrant splicing corr
Peptide (RXRRBR)2XB
Delivery Success Class no
In Vivo Flag yes
Uptake Confirmed yes
Label Confidence high
In Vitro Functional Effect
Endosomal Escape Evidence
Peptide Concentration Dose: 60 mg/kg/day (CPP-AMO conjugate) single or 4 daily injections
Rna Concentration Same as dose (covalent conjugate)
Mixing Ratio Covalent CPP–AMO conjugate (1:1 peptide:AMO)
Formulation Format CPP-conjugated AMO (AVI Biopharma peptide–morpholino conjugate)
Formulation Components (RXRRBR)2XB peptide covalently conjugated to AMO
Size Nm
Zeta Mv
Model Scope in_vivo
Model Type in vivo
Cell Lines Or Primary Cells
Animal Model C57BL/6 mice (wild-type); brain distribution study
Administration Route Intravenous (tail vein)
Output Type in vivo uptake / biodistribution
Output Value FITC signal detected throughout brain including cerebellum; Purkinje cell layer strongly stained; nuclear localization observed in Purkinje cells; signal increased with 4 daily injections.
Output Units
Output Notes Single IV injection vs 4 consecutive daily injections at 60 mg/kg/day; analysis 24 h after last injection; anti-FITC immunostaining and confocal microscopy used.
Toxicity Notes No apparent signs of toxicity or behavioral changes; H&E staining showed no obvious brain morphology changes (as reported).
Curation Notes