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Polo-Like Kinase 4's Critical Role in Cancer Development and Strategies for Plk4-Targeted Therapy
Xiaoyang Zhang1, Cheng Wei1, Hao Liang1
1Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin Medical University General Hospital, Tianjin, China.
Abstract:
Polo-like kinases (Plks) are critical regulatory molecules during the cell cycle process. This family has five members: Plk1, 2, 3, 4, and 5. Plk4 has been identified as a master regulator of centriole replication, and its aberrant expression is closely associated with cancer development. In this review, we depict the DNA, mRNA, and protein structure of Plk4, and the regulation of Plk4 at a molecular level. Then we list the downstream targets of Plk4 and the hallmarks of cancer associated with these targets. The role of Plk4 in different cancers is also summarized. Finally, we review the inhibitors that target Plk4 in the hope of discovering effective anticancer drugs. From authors' perspective, Plk4 might represent a valuable tumor biomarker and critical target for cancer diagnosis and therapy.
Insights
Polo-like kinase 4 (Plk4) regulates centriole replication and is linked to cancer. This review details Plk4 structure, regulation, targets, and its role in cancer, exploring Plk4 inhibitors for therapy.
Area of Science:
- Cell Biology
- Molecular Biology
- Oncology
Background:
- Polo-like kinases (Plks) are crucial for cell cycle regulation.
- Plk4 is a key regulator of centriole duplication.
- Aberrant Plk4 expression is implicated in cancer development.
Purpose of the Study:
- To review the structure and molecular regulation of Plk4.
- To identify Plk4's downstream targets and associated cancer hallmarks.
- To summarize Plk4's role in various cancers and discuss therapeutic inhibitors.
Main Methods:
- Literature review of Plk4 structure, function, and regulation.
- Analysis of Plk4's downstream targets and cancer associations.
- Compilation of data on Plk4 inhibitors and their therapeutic potential.
Main Results:
- Detailed depiction of Plk4 DNA, mRNA, and protein structure.
- Identification of Plk4's regulatory mechanisms and downstream targets.
- Summary of Plk4's involvement in diverse cancers and current inhibitor strategies.
Conclusions:
- Plk4 is a critical regulator of centriole replication with significant roles in cancer.
- Understanding Plk4's molecular biology is key to developing targeted cancer therapies.
- Plk4 shows promise as a diagnostic biomarker and therapeutic target for cancer treatment.
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