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EXP001571

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

PMO (phosphorodiamidate morpholino oligomer)

All experiment fields

Experiment Id EXP001571
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