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EXP001572

Paper

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

Peptide

B-CP10-CPP (branched double conjugate)

Sequence: CP10 + CPP (branched double conjugation onto PMO)

RNA

PMO (phosphorodiamidate morpholino oligomer)

All experiment fields

Experiment Id EXP001572
Paper Using muscle homing peptide CyPep10 to deliver phosphorodiamidate morpholino oligomers in the mdx mo
Peptide B-CP10-CPP (branched double conjugate)
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 double conjugate (CP10 + CPP on one PMO; branched)
Formulation Format double peptide–PMO conjugate (PPMO)
Formulation Components B-CP10-CPP-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 ~37%, diaphragm ~25%, heart ~15%. Dystrophin restoration: gastrocnemius ~17%, diaphragm ~7%, heart ~3%.
Output Units
Output Notes Branched double conjugate improved outcomes vs naked PMO and CP10-PMO; in gastrocnemius/diaphragm it was generally below CPP-PMO, but heart outcomes were comparable or higher in some comparisons; increased tissue PMO concentrations (ELOHA).
Toxicity Notes No significant differences in general liver/kidney function vs naked PMO; muscle damage markers tended lower vs naked PMO.
Curation Notes