Fragment-Based De Novo Design of Cyclin-Dependent Kinase 2 Inhibitors
Sunil Kumar Tripathi1, Poonam Singh, Sanjeev Kumar Singh
1Computer Aided Drug Designing and Molecular Modeling Lab, Department of Bioinformatics, Alagappa University, Science Block, 4th Floor, Karaikudi, 630004, Tamil Nadu, India.
Abstract:
Cyclin-dependent kinases (CDKs) are core components of the cell cycle machinery that govern the transition between phases during cell cycle progression. Abnormalities in CDKs activity and regulation are common features of cancer, making CDK family members attractive targets for the development of anticancer drugs. One of the main bottlenecks hampering the development of drugs for kinase is the difficulty to attain selectivity. A huge variety of small molecules have been reported as CDK inhibitors, as potential anticancer agents, but none of these has been approved for commercial use. Computer-based molecular design supports drug discovery by suggesting novel new chemotypes and compound modifications for lead candidate optimization. One of the methods known as de novo ligand design technique has emerged as a complementary approach to high-throughput screening. Several automated de novo software programs have been written, which automatically design novel structures to perfectly fit in known binding site. The de novo design supports drug discovery assignments by generating novel pharmaceutically active agents with desired properties in a cost as well as time efficient approach. This chapter describes procedure and an overview of computer-based molecular de novo design methods on a conceptual level with successful examples of CDKs inhibitors.
Insights
Computer-aided de novo design offers a novel approach to developing selective cyclin-dependent kinase (CDK) inhibitors for cancer therapy. This method efficiently generates new drug candidates with desired properties, addressing a key challenge in kinase inhibitor development.
Area of Science:
- Medicinal Chemistry
- Computational Drug Design
- Oncology
Background:
- Cyclin-dependent kinases (CDKs) are crucial regulators of the cell cycle, and their dysregulation is implicated in cancer.
- Developing selective CDK inhibitors is challenging due to the conserved nature of kinase active sites.
- Existing small molecule CDK inhibitors have not yet achieved commercial approval for anticancer use.
Purpose of the Study:
- To provide an overview of computer-based molecular de novo design methods for drug discovery.
- To highlight the application of de novo design in generating novel CDK inhibitors.
- To discuss the potential of de novo design in overcoming selectivity challenges in kinase inhibitor development.
Main Methods:
- Conceptual description of computer-based molecular de novo design techniques.
- Explanation of automated de novo software for designing ligands.
- Illustrative examples of successful de novo design strategies for CDK inhibitors.
Main Results:
- De novo design can generate novel chemotypes and optimize lead candidates.
- Automated de novo tools can design structures that fit specific binding sites.
- This approach supports cost- and time-efficient generation of pharmaceutically active agents.
Conclusions:
- Computer-based de novo design is a valuable complementary approach to traditional screening methods.
- De novo design facilitates the creation of selective kinase inhibitors, including those targeting CDKs.
- This strategy holds promise for accelerating the development of effective anticancer drugs.
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