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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/176812
Immunosilencing peptides by stereochemical inversion and sequence reversal: retro-D-peptides
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Peptides are experiencing a new era in medical research, finding applications ranging from therapeutics to vaccines. In spite of the promising properties of peptide pharmaceuticals, their development continues to be hindered by three weaknesses intrinsic to their structure, namely protease sensitivity, clearance through the kidneys, and immune system activation. Here we report on two retro-D-peptides (H2N-hrpyiah-CONH2 and H2N-pwvpswmpprht-CONH2), which are protease-resistant and retain the original BBB shuttle activity of the parent peptide but are much less immunogenic than the parent peptide. Hence, we envisage that retro-D-peptides, which display a similar topological arrangement as their parent peptides, will expand drug design and help to overcome factors that lead to the failure of peptide pharmaceuticals in pre- and clinical trials. Furthermore, we reveal requirements to avoid or elicit specific humoral responses to therapeutic peptides, which might have a strong impact in both vaccine design and peptide therapeutic agents.
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ARRANZ GIBERT, Pol, et al. Immunosilencing peptides by stereochemical inversion and sequence reversal: retro-D-peptides. Scientific Reports. 2018. Vol. 8, num. 1, pags. 6446. ISSN 2045-2322. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/176812