Angel or Devil ? - CDK8 as the new drug target
Dan Wu1, Zhaoyan Zhang2, Xing Chen2
1School of Biological Engineering, Hefei Technology College, Hefei, 238000, PR China.
Abstract:
Cyclin-dependent kinase 8 (CDK8) plays an momentous role in transcription regulation by forming kinase module or transcription factor phosphorylation. A large number of evidences have identified CDK8 as an important factor in cancer occurrence and development. In addition, CDK8 also participates in the regulation of cancer cell stress response to radiotherapy and chemotherapy, assists tumor cell invasion, metastasis, and drug resistance. Therefore, CDK8 is regarded as a promising target for cancer therapy. Most studies in recent years supported the role of CDK8 as a carcinogen, however, under certain conditions, CDK8 exists as a tumor suppressor. The functional diversity of CDK8 and its exceptional role in different types of cancer have aroused great interest from scientists but even more controversy during the discovery of CDK8 inhibitors. In addition, CDK8 appears to be an effective target for inflammation diseases and immune system disorders. Therefore, we summarized the research results of CDK8, involving physiological/pathogenic mechanisms and the development status of compounds targeting CDK8, provide a reference for the feasibility evaluation of CDK8 as a therapeutic target, and guidance for researchers who are involved in this field for the first time.
Insights
Cyclin-dependent kinase 8 (CDK8) is crucial in cancer development and treatment resistance, acting as both a carcinogen and tumor suppressor. Understanding its complex roles is key for developing novel CDK8 inhibitors for cancer and inflammatory diseases.
Area of Science:
- Molecular Biology
- Oncology
- Pharmacology
Background:
- Cyclin-dependent kinase 8 (CDK8) is integral to transcription regulation via kinase module formation and transcription factor phosphorylation.
- CDK8 is implicated in cancer initiation, progression, and resistance to therapies like radiotherapy and chemotherapy.
- Its dual role as a carcinogen and tumor suppressor, alongside involvement in inflammation and immune disorders, highlights its complex biological functions.
Purpose of the Study:
- To summarize current research on CDK8's physiological and pathogenic mechanisms.
- To review the development status of compounds targeting CDK8.
- To evaluate CDK8's therapeutic potential and guide future research.
Main Methods:
- Literature review of studies on CDK8.
- Analysis of CDK8's role in various cancers and diseases.
- Compilation of data on CDK8 inhibitor development.
Main Results:
- CDK8's involvement in cancer cell invasion, metastasis, and drug resistance is confirmed.
- Evidence supports CDK8's dual role, acting as both an oncogene and a tumor suppressor depending on context.
- CDK8 shows promise as a therapeutic target for cancer, inflammation, and immune system disorders.
Conclusions:
- CDK8 is a significant therapeutic target with potential applications in oncology and immunology.
- Further research into CDK8's complex functions is needed to optimize inhibitor development.
- This review provides a foundation for evaluating CDK8 as a viable therapeutic strategy.
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