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Cdk5 links with DNA damage response and cancer
Wan Liu1, Jun Li1, Yu-Shu Song1
1Department of Breast Surgery, The Second Affiliated Hospital of Dalian Medical University, Zhongshan Road 467, Dalian, 116023, China.
Abstract:
As an atypical member of cyclin dependent kinase family, Cyclin dependent kinase 5 (Cdk5) is considered as a neuron-specific kinase in the past decade due to the abundant existence of its activator p35 in post-mitotic neurons. Recent studies show that Cdk5 participates in a series of biological and pathological processes in non-neuronal cells, and is generally dysregulated in various cancer cells. The inhibition or knockdown of Cdk5 has been proven to play an anti-cancer role through various mechanisms, and can synergize the killing effect of chemotherapeutics. DNA damage response (DDR) is a series of regulatory events including DNA damage, cell-cycle arrest, regulation of DNA replication, and repair or bypass of DNA damage to ensure the maintenance of genomic stability and cell viability. Here we describe the regulatory mechanisms of Cdk5, its controversial roles in apoptosis and focus on its links to DDR and cancer.
Insights
Cyclin dependent kinase 5 (Cdk5) is involved in cancer and DNA damage response. Inhibiting Cdk5 shows anti-cancer effects and enhances chemotherapy efficacy.
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- Cyclin dependent kinase 5 (Cdk5) was historically considered neuron-specific.
- Emerging evidence implicates Cdk5 in non-neuronal cellular processes and cancer.
- Cdk5 dysregulation is observed in various cancer types.
Purpose of the Study:
- To elucidate the regulatory mechanisms of Cdk5.
- To investigate the controversial roles of Cdk5 in apoptosis.
- To focus on the connection between Cdk5, DNA damage response (DDR), and cancer.
Main Methods:
- Literature review and synthesis of existing research on Cdk5.
- Analysis of Cdk5's role in non-neuronal cells and cancer.
- Examination of Cdk5's involvement in DNA damage response pathways.
Main Results:
- Cdk5 exhibits diverse biological and pathological functions beyond neuronal cells.
- Cdk5 inhibition or knockdown demonstrates anti-cancer properties.
- Cdk5 activity can potentiate the effectiveness of chemotherapeutic agents.
Conclusions:
- Cdk5 plays a significant role in cancer development and progression.
- Understanding Cdk5's link to DNA damage response is crucial for cancer therapy.
- Targeting Cdk5 presents a potential therapeutic strategy for cancer treatment.
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