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Desirability function combining metabolic stability and functionality of peptides.

Sylvia Van Dorpe1, Antita Adriaens, Simon Vermeire

  • 1Drug Quality and Registration (DruQuaR) Group, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, B-9000 Ghent, Belgium.

Journal of Peptide Science : an Official Publication of the European Peptide Society
|February 5, 2011
PubMed
Summary
This summary is machine-generated.

Derringer's desirability function identified dermorphin as the optimal opioid peptide for brain studies. This multi-criteria method balances blood-brain barrier (BBB) penetration and metabolic stability for drug development.

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Area of Science:

  • Pharmacology and Drug Discovery
  • Biomedical Research
  • Neuroscience

Background:

  • Evaluating therapeutic peptides requires balancing functionality (e.g., blood-brain barrier (BBB) penetration) and metabolic stability.
  • These opposing characteristics often necessitate compromises in peptide drug development.
  • Selecting optimal peptide candidates for brain-targeted therapies is challenging due to complex biological parameters.

Purpose of the Study:

  • To apply Derringer's desirability function, a multi-criteria decision-making method, for selecting the best opioid peptide for research.
  • To establish a single figure-of-merit integrating BBB penetration and metabolic stability in plasma and brain.
  • To identify the most promising peptide candidate for opioid studies based on overall 'BBB-drugability'.

Main Methods:

  • Utilized Derringer's desirability function to assess eight opioid peptides.
  • Incorporated four biological parameters: blood-brain barrier (BBB) influx, BBB efflux, plasma stability, and brain stability.
  • Validated desirability function outcomes using in vivo medical imaging to confirm BBB penetration.

Main Results:

  • Dermorphin exhibited the highest desirability, indicating superior BBB-drugability among the investigated peptides.
  • CTAP was identified as the least desirable candidate due to poor BBB influx and/or metabolic stability.
  • In vivo imaging confirmed BBB penetration for dermorphin and DAMGO, while EM-1 and TAPP showed limited penetration.

Conclusions:

  • Derringer's desirability function effectively integrates multiple, conflicting biological parameters for peptide candidate selection.
  • Dermorphin emerges as a highly promising opioid peptide candidate for brain-related studies.
  • The multi-criteria decision method is a valuable tool in biomedical research for optimizing drug candidate selection.