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Updated: Jan 1, 2026

Identification of Cyclin-dependent Kinase 1 Specific Phosphorylation Sites by an In Vitro Kinase Assay
Published on: May 3, 2018
The double dealing of cyclin D1
Guergana Tchakarska1, Brigitte Sola2
1Department of Human Genetics, McGill University Health Centre, McGill University, Montreal, Montreal, Quebec, Canada.
Cyclin D1, a key cell cycle regulator, acts as an oncogene when deregulated, driving tumors. Recent research reveals its non-canonical functions and complex networks, offering new therapeutic targets.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- The cell cycle is regulated by cyclin-dependent kinases (CDKs) and cyclins.
- Cyclin D1, partnered with CDK4/6, senses mitogenic signals and controls cell cycle progression.
- Deregulation of cyclin D1 (overexpression, accumulation, abnormal localization) transforms it into an oncogene, driving various cancers.
Purpose of the Study:
- To review recent findings on the oncogenic roles of cyclin D1.
- To explore non-canonical functions of cyclin D1 influenced by its binding partners and cellular location.
- To highlight the potential of these insights for developing targeted therapies.
Main Methods:
- Review of recent scientific literature on cyclin D1.
- Analysis of data from mouse models of oncogenesis.
- Examination of proteomic and transcriptomic data identifying cyclin D1 networks.
Main Results:
- Cyclin D1 exhibits non-canonical functions beyond cell cycle regulation.
- These functions depend on cyclin D1's interaction partners and subcellular localization.
- Mouse models support these novel oncogenic roles.
- Proteomic and transcriptomic analyses reveal complex cyclin D1-associated networks.
Conclusions:
- Cyclin D1's pathophysiology involves non-canonical functions crucial for cancer development.
- Understanding these complex networks and interactions is vital for advancing targeted cancer therapies.
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