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Construction of Cyclic Cell-Penetrating Peptides for Enhanced Penetration of Biological Barriers
Published on: September 19, 2022
Small efficient cell-penetrating peptides derived from scorpion toxin maurocalcine
Cathy Poillot1, Hicham Bichraoui1, Céline Tisseyre1
1INSERM U836, Grenoble Neuroscience Institute, Site Santé La Tronche, Chemin Fortuné Ferrini, BP 170, 38042 Grenoble Cedex 9, France; Université Joseph Fourier, 38041 Grenoble, France.
The Journal of Biological Chemistry
|March 22, 2012
Summary
Maurocalcine, a cell-penetrating peptide (CPP), was modified to create smaller, efficient CPPs. Truncated maurocalcine analogues retain cell penetration, offering potential for drug delivery applications.
Area of Science:
- Biochemistry
- Molecular Biology
- Peptide Chemistry
Background:
- Maurocalcine is a 33-amino acid animal toxin peptide with efficient cell-penetrating peptide (CPP) properties.
- Its large size and disulfide bridges limit its utility in therapeutic applications.
Purpose of the Study:
- To develop smaller, potent CPPs derived from maurocalcine.
- To investigate the cell penetration capabilities of truncated maurocalcine analogues.
Main Methods:
- Chemical modification of cysteine residues to 2-aminobutyric acid.
- Sequence truncation of maurocalcine to create shorter analogues (up to 9 residues).
- Assessment of cell penetration properties of the modified and truncated peptides.
Main Results:
- Several efficient CPPs were successfully derived from maurocalcine.
- All truncated maurocalcine analogues exhibited cell penetration properties.
- The study identified smaller maurocalcine-derived peptides with significant potential for cell delivery.
Conclusions:
- Maurocalcine serves as a template for highly specialized and efficient CPPs.
- Truncated maurocalcine analogues offer a promising alternative for cell delivery applications where size is a critical factor.
