Related Experiment Video
Updated: Oct 23, 2025
06:29
Real-Time Monitoring of Aurora kinase A Activation using Conformational FRET Biosensors in Live Cells
Published on: July 30, 2020
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CDK4 has the ability to regulate Aurora B and Cenpp expression in mouse keratinocytes
Sung Hyun Lee1, Liliana R L Rodriguez2, Rima Majumdar1
1Department of Molecular Biomedical Sciences, Center for Human Health and The Environment, North Carolina State University, Raleigh, NC 27607, USA.
Oncology Letters
|August 25, 2021
Summary
Cyclin-dependent kinase 4 (CDK4) regulates cell division. This study reveals CDK4 also controls genes essential for chromosome segregation, impacting cell cycle progression and potentially causing cancer when dysregulated.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- Cyclin-dependent kinase 4 (CDK4) is a key regulator of cell proliferation via retinoblastoma protein phosphorylation.
- Emerging evidence suggests CDK4 has additional roles in cell proliferation and tumorigenesis.
Purpose of the Study:
- To investigate a novel function of CDK4 as a transcriptional regulator.
- To determine CDK4's role in regulating genes involved in chromosome segregation and the G2/M phase transition.
Main Methods:
- Chromatin-immunoprecipitation followed by reverse transcription-quantitative PCR (ChIP-RT-qPCR) to assess CDK4 binding to gene promoters.
- Gain- and loss-of-function experiments to evaluate CDK4's regulatory impact on target genes.
Main Results:
- CDK4 was found to bind the promoter regions of chromosome segregation genes, including Aurora-B (Aurkb) and Centromere Protein P (CENP-P).
- CDK4 positively regulates the transcription of Aurkb and CENP-P.
Conclusions:
- CDK4 functions as a transcriptional regulator for genes critical to chromosome segregation.
- Dysregulation of CDK4 impacts chromosomal stability and may contribute to cancer development.
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