Journal of Medicinal Chemistry
Journal of Medicinal Chemistry
5 years ago

Combining Elements from Two Antagonists of Formyl Peptide Receptor 2 Generates More Potent Peptidomimetic Antagonists

Combining Elements from Two Antagonists of Formyl Peptide Receptor 2 Generates More Potent Peptidomimetic Antagonists
Huamei Forsman, Iris Perez-Gassol, Anna Mette Hansen, Henrik Franzyk, Sarah Line Skovbakke, André Holdfeldt, Claes Dahlgren, Christina Nielsen
Structural optimization of a peptidomimetic antagonist of formyl peptide receptor 2 (FPR2) was explored by an approach involving combination of elements from the two most potent FPR2 antagonists described: a Rhodamine B-conjugated 10-residue gelsonin-derived peptide (i.e., PBP10, RhB-QRLFQVKGRR-OH) and the palmitoylated α-peptide/β-peptoid hybrid Pam-(Lys-βNspe)6-NH2. This generated an array of hybrid compounds from which a new subclass of receptor-selective antagonists was identified. The most potent representatives displayed activity in the low nanomolar range. The resulting stable and potent FPR2-selective antagonists (i.e., RhB-(Lys-βNphe)n-NH2; n = 4–6) are expected to become valuable tools in further elucidation of the physiological role of FPR2 in health and disease.

Publisher URL: http://dx.doi.org/10.1021/acs.jmedchem.7b00489

DOI: 10.1021/acs.jmedchem.7b00489

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