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Updated: Jun 20, 2026
13:37
Split-and-pool Synthesis and Characterization of Peptide Tertiary Amide Library
Published on: June 20, 2014
Peptide Marriages: Modular Assembly of Multi-Agonist Therapeutics
Kristina A Kostadinova1, Jan L Venne1, Sona Krajcovicova1,2
1Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|June 18, 2026
Summary
A new modular scaffold simplifies creating multi-target peptide drugs for obesity. This platform allows rapid assembly of complex agonists, enhancing therapeutic development for metabolic diseases.
Area of Science:
- Bioconjugation Chemistry
- Medicinal Chemistry
- Peptide Therapeutics
Background:
- Multi-receptor peptide agonists offer a promising strategy for obesity treatment, building on incretin-based therapies.
- Current development of these agonists is synthetically challenging, often requiring de novo synthesis of large fusion peptides for each receptor combination.
Purpose of the Study:
- To develop a versatile and modular platform for the rapid assembly of multi-agonist peptide therapeutics.
- To demonstrate the utility of this platform using glucagon-like peptide-1 (GLP-1) and amylin receptor agonists.
Main Methods:
- Utilized a modular polyethylene glycol (PEG)-based scaffold for orthogonal attachment of functional components via click chemistry (SPAAC and CuAAC).
- Assembled the scaffold on solid phase without intermediate purification.
- Generated dual-agonist constructs with tunable valency and functionality.
Main Results:
- Successfully generated dual-agonist constructs targeting GLP-1 and amylin receptors.
- Achieved balanced, low-picomolar potency at both receptors.
- Demonstrated selective receptor-mediated internalization in GLP-1 receptor-expressing cells.
Conclusions:
- The developed click-based platform enables rapid, modular assembly of multi-agonist peptides.
- Facilitates systematic exploration of receptor combinations, valency, and payload effects for therapeutic development.
- Offers a generalizable approach for creating multifunctional peptide therapeutics and diagnostics beyond incretin biology.
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