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EXP001466

Paper

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

Peptide

L-CP10-CPP (linear double conjugate)

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

RNA

oligonucleotide

All experiment fields

Experiment Id EXP001466
Paper Using muscle homing peptide CyPep10 to deliver phosphorodiamidate morpholino oligomers in the mdx mo
Peptide L-CP10-CPP (linear 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; linear)
Formulation Format double peptide–PMO conjugate (PPMO)
Formulation Components L-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 + pathology
Output Value Exon skipping: gastrocnemius ~55%, diaphragm ~50%, heart ~20%. Dystrophin restoration: gastrocnemius ~26%, diaphragm ~10%, heart ~3%. Pathology in gastrocnemius reduced (~1.7% vs ~10.8% for naked PMO).
Output Units
Output Notes Linear double conjugate generally outperformed naked PMO and CP10-PMO, and modestly exceeded CPP-PMO in several tissues; also 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