ATP-noncompetitive inhibitors of CDK-cyclin complexes
Mar Orzáez1, Anna Gortat, Laura Mondragón
1Department of Medicinal Chemistry, Centro de Investigación Príncipe Felipe, Avda. Autopista del Saler 16, 46012, Valencia, Spain. morzaez@cipf.es
Abstract:
Progression through the cell division cycle is controlled by a family of cyclin-dependent kinases (CDKs), the activity of which depends on their binding to regulatory partners (cyclins A-H). Deregulation of the activity of CDKs has been associated with the development of infectious, neurodegenerative, and proliferative diseases such as Alzheimer's, Parkinson's, or cancer. Most cancer cells contain mutations in the pathways that control the activity of CDKs. This observation led this kinase family to become a central target for the development of new drugs for cancer therapy. A range of structurally diverse molecules has been shown to inhibit the activity of CDKs through their activity as ATP antagonists. Nevertheless, the ATP binding sites on CDKs are highly conserved, limiting the kinase specificity of these inhibitors. Various genetic and crystallographic approaches have provided essential information about the mechanism of formation and activation of CDK-cyclin complexes, providing new ways to implement novel research strategies toward the discovery of new, more effective and selective drugs. Herein we review the progress made in the development of ATP-noncompetitive CDK-cyclin inhibitors.
Insights
Cyclin-dependent kinases (CDKs) regulate cell division and are implicated in diseases like cancer. This review explores novel ATP-noncompetitive inhibitors targeting CDK-cyclin complexes for more selective cancer therapies.
Area of Science:
- Molecular Biology
- Biochemistry
- Pharmacology
Background:
- Cell division cycle progression is governed by cyclin-dependent kinases (CDKs) interacting with cyclins.
- Dysregulated CDK activity is linked to infectious, neurodegenerative, and proliferative diseases, notably cancer.
- CDKs are a primary target for developing novel cancer therapeutics due to frequent mutations in cancer cells.
Purpose of the Study:
- To review advancements in the development of ATP-noncompetitive inhibitors for CDK-cyclin complexes.
- To highlight strategies for discovering more effective and selective CDK inhibitors.
Main Methods:
- Review of genetic and crystallographic approaches.
- Analysis of ATP-antagonist inhibitors and their limitations.
- Exploration of CDK-cyclin complex formation and activation mechanisms.
Main Results:
- ATP-competitive CDK inhibitors face challenges due to conserved ATP binding sites, limiting specificity.
- Understanding CDK-cyclin complex mechanisms offers new avenues for drug discovery.
- Progress has been made in developing ATP-noncompetitive CDK-cyclin inhibitors.
Conclusions:
- Targeting CDK-cyclin complexes with non-ATP-competitive inhibitors offers a promising strategy for cancer therapy.
- Further research into CDK-cyclin interactions is crucial for developing selective and potent drugs.
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