NTS2-selective neurotensin mimetics with tetrahydrofuran amino acids

Simeth, Nadja A. and Bause, Manuel and Dobmeier, Michael and Kling, Ralf C. and Lachmann, Daniel and Huebner, Harald and Einsiedel, Juergen and Gmeiner, Peter and Koenig, Burkhard (2017) NTS2-selective neurotensin mimetics with tetrahydrofuran amino acids. BIOORGANIC & MEDICINAL CHEMISTRY, 25 (1). pp. 350-359. ISSN 0968-0896, 1464-3391

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Abstract

Stimulation of the NTS2 neurotensin receptor causes antipsychotic effects and leads to a promotion of the l-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 Tyr(11) in NT (8-13). Additionally, Arg(8), Arg(9), and Ile(12) 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): 29 nM, Ki(NTS1): 35,000 nM) was observed for the peptide analog 17(Rtrans). (C) 2016 Elsevier Ltd. All rights reserved.

Item Type: Article
Uncontrolled Keywords: PHASE PEPTIDE-SYNTHESIS; RECEPTOR-BINDING; FUNCTIONAL EXPRESSION; LIGAND-BINDING; G-PROTEIN; ANALOGS; CANCER; AFFINITY; SITE; BIODISTRIBUTION; Neurotensin; Peptides; Non-natural amino acid
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König
Depositing User: Dr. Gernot Deinzer
Date Deposited: 14 Dec 2018 12:57
Last Modified: 19 Feb 2019 07:10
URI: https://pred.uni-regensburg.de/id/eprint/61

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