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NOP-Targeted Peptide Ligands.

Delia Preti1, Girolamo Caló2, Remo Guerrini3

  • 1Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy.

Handbook of Experimental Pharmacology
|January 29, 2019
PubMed
Summary
This summary is machine-generated.

Researchers explored structure-activity relationships of nociceptin/orphanin FQ (N/OFQ)-N/OFQ peptide (NOP) receptor ligands. Optimized peptide modifications and library screening yielded potent NOP receptor modulators with therapeutic potential.

Keywords:
NOPNociceptin/orphanin FQPeptide ligandsSAR studies

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Area of Science:

  • Pharmacology
  • Medicinal Chemistry
  • Neuroscience

Background:

  • The nociceptin/orphanin FQ (N/OFQ)-N/OFQ peptide (NOP) receptor system plays a crucial role in modulating various biological functions.
  • This system has significant therapeutic implications, driving research into novel ligands.

Purpose of the Study:

  • To provide a comprehensive overview of structure-activity relationship (SAR) studies for NOP receptor peptide ligands.
  • To highlight diverse rational approaches used in ligand development.

Main Methods:

  • Systematic modifications and cyclizations of the N/OFQ sequence.
  • Screening of peptide libraries to identify novel ligand scaffolds.
  • Application of multimerization strategies for enhanced properties.

Main Results:

  • Development of potent and selective NOP receptor ligands with diverse pharmacological profiles (agonists, antagonists).
  • Achieved enhanced metabolic stability and prolonged duration of action in vivo.
  • Identification of drug candidates like Rec 0438 and SER 100 for clinical development.

Conclusions:

  • Rational design and optimization strategies have successfully yielded valuable pharmacological tools and drug candidates targeting the NOP receptor.
  • These findings underscore the therapeutic potential of NOP receptor modulation for conditions such as overactive bladder and hypertension.