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Recent developments in computational prediction of HERG blockage
Sichao Wang1, Youyong Li, Lei Xu
1Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon- Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu 215123, China.
Insights
Computational methods can predict human ether-a-go-go related gene (hERG) channel blockers early in drug discovery. This approach reduces the risk of cardiotoxicity and costly late-stage development failures.
Area of Science:
- Pharmacology
- Computational Chemistry
- Drug Discovery
Background:
- Blockage of the human ether-a-go-go related gene (hERG) ion channel can cause drug-induced QT interval prolongation.
- This cardiotoxicity is a significant risk for non-cardiovascular drugs, leading to late-stage attrition.
- Early identification of hERG liability is crucial for safer drug development.
Purpose of the Study:
- To review computational approaches for predicting hERG channel blockers.
- To summarize recent advancements in modeling hERG-blocker interactions.
- To discuss challenges and strategies in developing reliable hERG prediction models.
Main Methods:
- Literature review of computational prediction methods for hERG blockers.
- Summary of theoretical studies on hERG-blocker interactions.
- Analysis of challenges and solutions for predictive modeling.
Main Results:
- Computational methods offer an economical and efficient way to screen large compound libraries for hERG liability.
- Recent developments focus on structure-based and ligand-based computational models.
- Modeling hERG-blocker interactions aids in understanding cardiotoxicity mechanisms.
Conclusions:
- Computational predictions are vital for early-stage identification of potential hERG blockers.
- Overcoming challenges in model development requires integrated strategies.
- Accurate hERG liability assessment improves drug safety and reduces development costs.
Abstract:
The blockage of the voltage dependent ion channel encoded by human ether-a-go-go related gene (hERG) may lead to drug-induced QT interval prolongation, which is a critical side-effect of non-cardiovasular therapeutic agents. Therefore, identification of potential hERG channel blockers at the early stage of drug discovery process will decrease the risk of cardiotoxicity-related attritions in the later and more expensive development stage. Computational approaches provide economic and efficient ways to evaluate the hERG liability for large-scale compound libraries. In this review, the structure of the hERG channel is briefly outlined first. Then, the latest developments in the computational predictions of hERG channel blockers and the theoretical studies on modeling hERG-blocker interactions are summarized. Finally, the challenges of developing reliable prediction models of hERG blockers, as well as the strategies for surmounting these challenges, are discussed.
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