In Silico Identification of Tripeptides as Lead Compounds for the Design of KOR Ligands

The kappa opioid receptor (KOR) represents an attractive target for the development of drugs as potential antidepressants, anxiolytics and analgesics. A robust computational approach may guarantee a reduction in costs in the initial stages of drug discovery, novelty and accurate results. In this wor...

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Main Authors: Azzurra Stefanucci, Valeria Iobbi, Alice Della Valle, Giuseppe Scioli, Stefano Pieretti, Paola Minosi, Sako Mirzaie, Ettore Novellino, Adriano Mollica
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/16/4767
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author Azzurra Stefanucci
Valeria Iobbi
Alice Della Valle
Giuseppe Scioli
Stefano Pieretti
Paola Minosi
Sako Mirzaie
Ettore Novellino
Adriano Mollica
author_facet Azzurra Stefanucci
Valeria Iobbi
Alice Della Valle
Giuseppe Scioli
Stefano Pieretti
Paola Minosi
Sako Mirzaie
Ettore Novellino
Adriano Mollica
author_sort Azzurra Stefanucci
collection DOAJ
description The kappa opioid receptor (KOR) represents an attractive target for the development of drugs as potential antidepressants, anxiolytics and analgesics. A robust computational approach may guarantee a reduction in costs in the initial stages of drug discovery, novelty and accurate results. In this work, a virtual screening workflow of a library consisting of ~6 million molecules was set up, with the aim to find potential lead compounds that could manifest activity on the KOR. This in silico study provides a significant contribution in the identification of compounds capable of interacting with a specific molecular target. The main computational techniques adopted in this experimental work include: (i) virtual screening; (ii) drug design and leads optimization; (iii) molecular dynamics. The best hits are tripeptides prepared via solution phase peptide synthesis. These were tested in vivo, revealing a good antinociceptive effect after subcutaneous administration. However, further work is due to delineate their full <i>pharmacological</i> profile, in order to verify the features predicted by the in silico outcomes.
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spelling doaj.art-26baa949ab1246b5be864d1c5b3f08902023-11-22T08:51:50ZengMDPI AGMolecules1420-30492021-08-012616476710.3390/molecules26164767In Silico Identification of Tripeptides as Lead Compounds for the Design of KOR LigandsAzzurra Stefanucci0Valeria Iobbi1Alice Della Valle2Giuseppe Scioli3Stefano Pieretti4Paola Minosi5Sako Mirzaie6Ettore Novellino7Adriano Mollica8Department of Pharmacy, University G. d’Annunzio Chieti, Via dei Vestini 31, 66100 Chieti, ItalyDepartment of Pharmacy (DIFAR), University of Genova, 16128 Genova, ItalyDepartment of Pharmacy, University G. d’Annunzio Chieti, Via dei Vestini 31, 66100 Chieti, ItalyDepartment of Pharmacy, University G. d’Annunzio Chieti, Via dei Vestini 31, 66100 Chieti, ItalyCentro Nazionale Ricerca e Valutazione Preclinica e Clinica dei Farmaci, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, ItalyCentro Nazionale Ricerca e Valutazione Preclinica e Clinica dei Farmaci, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, ItalyAdvanced Pharmaceutics and Drug Delivery Laboratory, Leslie L. Dan Faculty of Pharmacy, University of Toronto, 27 King’s College Circle, Toronto, ON M5S 1A1, CanadaNGN Healthcare, Via Nazionale Torrette, 207, 83013 Mercogliano, ItalyDepartment of Pharmacy, University G. d’Annunzio Chieti, Via dei Vestini 31, 66100 Chieti, ItalyThe kappa opioid receptor (KOR) represents an attractive target for the development of drugs as potential antidepressants, anxiolytics and analgesics. A robust computational approach may guarantee a reduction in costs in the initial stages of drug discovery, novelty and accurate results. In this work, a virtual screening workflow of a library consisting of ~6 million molecules was set up, with the aim to find potential lead compounds that could manifest activity on the KOR. This in silico study provides a significant contribution in the identification of compounds capable of interacting with a specific molecular target. The main computational techniques adopted in this experimental work include: (i) virtual screening; (ii) drug design and leads optimization; (iii) molecular dynamics. The best hits are tripeptides prepared via solution phase peptide synthesis. These were tested in vivo, revealing a good antinociceptive effect after subcutaneous administration. However, further work is due to delineate their full <i>pharmacological</i> profile, in order to verify the features predicted by the in silico outcomes.https://www.mdpi.com/1420-3049/26/16/4767peptidesmolecular modellingk-opioid receptorantinociceptive effectbinding
spellingShingle Azzurra Stefanucci
Valeria Iobbi
Alice Della Valle
Giuseppe Scioli
Stefano Pieretti
Paola Minosi
Sako Mirzaie
Ettore Novellino
Adriano Mollica
In Silico Identification of Tripeptides as Lead Compounds for the Design of KOR Ligands
Molecules
peptides
molecular modelling
k-opioid receptor
antinociceptive effect
binding
title In Silico Identification of Tripeptides as Lead Compounds for the Design of KOR Ligands
title_full In Silico Identification of Tripeptides as Lead Compounds for the Design of KOR Ligands
title_fullStr In Silico Identification of Tripeptides as Lead Compounds for the Design of KOR Ligands
title_full_unstemmed In Silico Identification of Tripeptides as Lead Compounds for the Design of KOR Ligands
title_short In Silico Identification of Tripeptides as Lead Compounds for the Design of KOR Ligands
title_sort in silico identification of tripeptides as lead compounds for the design of kor ligands
topic peptides
molecular modelling
k-opioid receptor
antinociceptive effect
binding
url https://www.mdpi.com/1420-3049/26/16/4767
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