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Trivalent Protein Degraders

Proteolysis-targeting chimeras (Protein Degraders) acts as an important role in the area of target protein that is revolutionizing drug discovery. Protein Degraders drive protein degradation by simultaneously binding target proteins and E3 ligase and forming a productive complex. While the typical Protein Degraders are traditionally conceived as bifunctional which are composed of two ligands, novel trivalent Protein Degraders with an extra target protein binding site have shown more sustained and higher degradation efficacy. As a world-leading service provider in the field of drug research, Creative Biolabs can offer comprehensive trivalent Protein Degraders design, synthesis, and evaluation service to global clients based on our established platform. We guarantee to provide excellent service and competitive products to customers all over the world.

Introduction of Trivalent Protein Degraders

The ubiquitin-proteasome and typical divalent Protein Degraders. Fig.1 The ubiquitin-proteasome and typical divalent Protein Degraders.
(Ocaña, 2020)

Protein Degraders have successfully been applied to degrade a wide spectrum of protein targets and shown satisfactory efficacy in multiple therapeutic areas, including oncology, inflammation, dermatology, immunology, and respiratory diseases. Typically bispecific Protein Degraders yield a productive ternary complex by inducing proximity between two proteins, which contribute to efficient ubiquitination. However, unfavorable Protein Degraders ternary complexes and pronounced hook effects lead to slow and incomplete target degradation.

Similar to drug discovery, multivalent strategy also can be used in Protein Degraders design to enhance targeted protein degradation. Trivalent Protein Degraders are composed of bivalent target ligands and E3 ligase recruitment, which contains an extra target protein recognition site compared to traditional bivalent Protein Degraders molecular. This added domain enhanced interaction activity to target proteins and enhance target degradation by mediating the formation of 1:1:1 complex with two target protein domains and a VHL, exhibiting positive cooperativity and high cellular stability with prolonged residence time, which led to more potent anticancer activity. Recent studies demonstrate that trivalent Protein Degraders have shown huge potential in the application of novel drug discovery.

Application of Trivalent Protein Degraders

Schematic illustration of BRD2 targeted Trivalent Protein Degraders. Fig.2 Schematic illustration of BRD2 targeted Trivalent Protein Degraders.
(Imaide, 2021)

As a newly developed method to enhance the potency of Protein Degraders, trivalent Protein Degraders attract more and more attention in the field of drug development, especially in anticancer therapeutic area. Recently, one group used BET domain family member proteins BRD2, BRD3, and BRD4 as model systems to design anticancer trivalent Protein Degraders. In this research, either VHL ligand or CRBN combined trivalent Protein Degraders have shown improved efficacy due to stronger binding activity. Moreover, trivalent Protein Degraders obtained an unexpected longer half-life than typical Protein Degraders and acceptable permeability. Furthermore, the remarkably favorable pharmacokinetics profile suggests that trivalent Protein Degraders will be appropriate for in vivo use. Meanwhile, scientists anticipate broad applicability of the approach to improve performance of a wide range of multispecific agents and modalities for chemical biology and pharmaceutical development.

Trivalent Protein Degraders

Advantage

  • Novel, safe and rapid.
  • Better potency and longer half-life.
  • Widely suitable to most target proteins.

Trivalent Protein Degraders provide an advanced strategy to design new Protein Degraders, which can be extended to the destruction of any protein of interest specifically and effectively. Based on the comprehensive and mature Protein Degraders research platform, Creative Biolabs has launched one-stop trivalent Protein Degraders design, synthesis, and evaluation service to meet your requirement. If you are interested in our services, please directly contact us for more details.

Reference

  1. Ocaña, A.; et al. Proteolysis targeting chimeras (Protein Degraders) in cancer therapy. Journal of Experimental & Clinical Cancer Research. 2020, 39(1), 1-9.
  2. Imaide, S.Trivalent Protein Degraders enhance protein degradation via combined avidity and cooperativity. Nature chemical biology. 2021, 17, 1157-1167.
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