Recent Developments in the Biology and Medicinal Chemistry of CDK9 Inhibitors: An Update
Tizhi Wu1, Zhen Qin1, Yucheng Tian1
1Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
Abstract:
Cyclin-dependent kinase 9 (CDK9), which regulates transcriptional elongation, is an attractive therapeutic target for many cancers, especially for cancers driven by transcriptional dysregulation. In particular, CDK9 promotes RNA polymerase II pause/release, a rate-limiting step in normal transcriptional regulation that is frequently dysregulated in cancers. Emerging evidence indicates that selective CDK9 inhibition or degradation may provide a therapeutic benefit against certain cancers. Indeed, the development of CDK9 modulators (inhibitors and degraders) has attracted great attention, with several molecules currently under clinical development. This review provides an overview of recent advances in CDK9 modulators in general, with special emphasis on compounds under clinical evaluation and new emerging strategies, such as proteolysis targeting chimeras (PROTACs).
Insights
Cyclin-dependent kinase 9 (CDK9) modulators are promising cancer therapeutics. This review highlights recent advances in CDK9 inhibitors and degraders, including PROTACs, for treating cancers driven by transcriptional dysregulation.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- Cyclin-dependent kinase 9 (CDK9) is crucial for transcriptional elongation and frequently dysregulated in cancers.
- CDK9's role in RNA polymerase II pause/release makes it a key target for cancer therapy.
- Selective CDK9 inhibition or degradation shows therapeutic potential in preclinical and clinical studies.
Purpose of the Study:
- To provide a comprehensive overview of recent advancements in CDK9 modulators.
- To focus on CDK9 inhibitors and degraders currently under clinical evaluation.
- To explore emerging therapeutic strategies targeting CDK9, such as PROTACs.
Main Methods:
- Review of current scientific literature on CDK9 modulators.
- Analysis of clinical trial data for CDK9-targeting agents.
- Examination of novel drug development strategies, including proteolysis targeting chimeras (PROTACs).
Main Results:
- Several CDK9 inhibitors and degraders are in clinical development for various cancers.
- Emerging strategies like PROTACs offer new avenues for selective CDK9 targeting.
- CDK9 modulation demonstrates promise in cancers characterized by transcriptional dysregulation.
Conclusions:
- CDK9 modulators represent a significant therapeutic advancement in oncology.
- Ongoing clinical development of CDK9 inhibitors and degraders warrants close attention.
- Novel approaches like PROTACs are expanding the therapeutic landscape for CDK9-targeted cancer treatment.
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