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EXP001569

Paper

Using muscle homing peptide CyPep10 to deliver phosphorodiamidate morpholino oligomers in the mdx mouse (2025)

Peptide

CyPep10 (CP10)

Sequence: QLFPLFR (cyclized 7-mer; CyPep10 / CP10)

RNA

PMO (phosphorodiamidate morpholino oligomer)

All experiment fields

Experiment Id EXP001569
Paper Using muscle homing peptide CyPep10 to deliver phosphorodiamidate morpholino oligomers in the mdx mo
Peptide CyPep10 (CP10)
Delivery Success Class yes
In Vivo Flag yes
Uptake Confirmed no
Label Confidence high
In Vitro Functional Effect
Endosomal Escape Evidence
Peptide Concentration 30 mg/kg PMO (or molar equivalent), IV weekly for 4 weeks; analysis 1 week after last dose
Rna Concentration 30 mg/kg PMO (or molar equivalent), IV weekly for 4 weeks; analysis 1 week after last dose
Mixing Ratio Covalent conjugate (1:1 peptide:PMO)
Formulation Format peptide–PMO conjugate (PPMO)
Formulation Components CP10-PMO
Size Nm
Zeta Mv
Model Scope in_vivo
Model Type in vivo
Cell Lines Or Primary Cells
Animal Model mdx mouse (C57BL/10ScSn-Dmdmdx/J), male, treated from 4 weeks old
Administration Route IV (tail vein), weekly x4
Output Type In vivo exon skipping + dystrophin restoration
Output Value Exon skipping: gastrocnemius ~26%, triceps ~29%, diaphragm ~7%, heart ~0.1%. Dystrophin restoration: triceps ~6%, gastrocnemius ~4%, diaphragm ~0.9%, heart ~0.1%.
Output Units
Output Notes CP10 conjugation increased muscle PMO tissue concentrations vs naked PMO but did not improve exon skipping/dystrophin vs naked PMO (discussed as likely limited nuclear delivery).
Toxicity Notes No significant changes in serum safety markers vs naked PMO (liver/kidney and muscle damage markers).
Curation Notes