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ID: ALA3871285
Journal: Bioorg Med Chem
Title: NTS2-selective neurotensin mimetics with tetrahydrofuran amino acids.
Authors: Simeth NA, Bause M, Dobmeier M, Kling RC, Lachmann D, Hübner H, Einsiedel J, Gmeiner P, König B.
Abstract: Stimulation of the NTS2 neurotensin receptor causes antipsychotic effects and leads to a promotion of the μ-opioid-independent antinociception, which is important in the modulation of tonic pain sensitivity. We report the synthesis and properties of a small library of peptidic agonists based on the active neurotensin fragment NT(8-13). Two tetrahydrofuran amino acid derivatives were synthesized to replace Tyr11 in NT(8-13). Additionally, Arg8, Arg9, and Ile12 of the lead peptide were exchanged by Lys, Lys, and Gly, respectively. The new compounds showed substantial NTS2 binding affinity and up to 1000-fold selectivity over NTS1. The highest selectivity (Ki(NTS2): 29nM, Ki(NTS1): 35,000nM) was observed for the peptide analog 17Rtrans.
CiteXplore: 27842797