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Updated: Jun 15, 2025

Identification of Kinase-substrate Pairs Using High Throughput Screening
Published on: August 29, 2015
The prospect of substrate-based kinase inhibitors to improve target selectivity and overcome drug resistance
Biswajit Biswas1, Yen-Hua Huang1, David J Craik1
1Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland Brisbane QLD 4072 Australia 4072 c.wang@imb.uq.edu.au d.craik@imb.uq.edu.au.
Abstract:
Human kinases are recognized as one of the most important drug targets associated with cancer. There are >80 FDA-approved kinase inhibitors to date, most of which work by inhibiting ATP binding to the kinase. However, the frequent development of single-point mutations within the kinase domain has made overcoming drug resistance a major challenge in drug discovery today. Targeting the substrate site of kinases can offer a more selective and resistance-resilient solution compared to ATP inhibition but has traditionally been challenging. However, emerging technologies for the discovery of drug leads using recombinant display and stabilization of lead compounds have increased interest in targeting the substrate site of kinases. This review discusses recent advances in the substrate-based inhibition of protein kinases and the potential of such approaches for overcoming the emergence of resistance.
Insights
Targeting protein kinase substrate sites offers a promising strategy to overcome drug resistance in cancer therapy. Emerging technologies are advancing substrate-based inhibition for more resilient kinase inhibitors.
Area of Science:
- Biochemistry
- Pharmacology
- Oncology
Background:
- Protein kinases are crucial drug targets in cancer therapy, with over 80 FDA-approved inhibitors.
- Most current kinase inhibitors target ATP binding, but drug resistance due to mutations is a significant challenge.
- Substrate site inhibition presents an alternative, potentially more selective and resistance-resilient approach.
Purpose of the Study:
- To review recent advancements in substrate-based protein kinase inhibition.
- To explore the potential of these approaches in overcoming drug resistance.
- To highlight emerging technologies enabling substrate site targeting.
Main Methods:
- Review of recent scientific literature on kinase inhibitors and drug resistance.
- Discussion of emerging technologies like recombinant display and lead compound stabilization.
- Analysis of substrate-based inhibition strategies.
Main Results:
- Emerging technologies are making substrate site targeting more feasible.
- Substrate-based inhibition holds promise for developing resistance-resilient kinase inhibitors.
- Advances in drug discovery are expanding options beyond ATP-competitive inhibition.
Conclusions:
- Substrate-based kinase inhibition is an evolving field with significant therapeutic potential.
- Targeting the substrate site can offer a more durable solution to kinase-driven cancers.
- Continued research and technological development are key to realizing this potential.
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