Related Experiment Video
Updated: Jul 21, 2025

Identification of Cyclin-dependent Kinase 1 Specific Phosphorylation Sites by an In Vitro Kinase Assay
Published on: May 3, 2018
D-Type Cyclins in Development and Disease
Mostafa Saleban1, Erica L Harris1, James A Poulter1
1Division of Molecular Medicine, Leeds Institute of Medical Research, University of Leeds, Leeds LS2 9JT, UK.
Abstract:
D-type cyclins encode G1/S cell cycle checkpoint proteins, which play a crucial role in defining cell cycle exit and progression. Precise control of cell cycle exit is vital during embryonic development, with defects in the pathways regulating intracellular D-type cyclins resulting in abnormal initiation of stem cell differentiation in a variety of different organ systems. Furthermore, stabilisation of D-type cyclins is observed in a wide range of disorders characterized by cellular over-proliferation, including cancers and overgrowth disorders. In this review, we will summarize and compare the roles played by each D-type cyclin during development and provide examples of how their intracellular dysregulation can be an underlying cause of disease.
Insights
D-type cyclins regulate cell cycle progression and exit. Their dysregulation is linked to developmental defects and diseases like cancer.
Area of Science:
- Cell Biology
- Developmental Biology
- Molecular Biology
Background:
- D-type cyclins are key regulators of the G1/S cell cycle checkpoint.
- Precise control of cell cycle exit is critical for embryonic development.
- Dysregulation of D-type cyclins is implicated in stem cell differentiation defects and over-proliferation disorders.
Purpose of the Study:
- To review and compare the roles of individual D-type cyclins during development.
- To illustrate how D-type cyclin dysregulation contributes to disease pathogenesis.
Main Methods:
- This is a review article, synthesizing existing research.
- Comparative analysis of D-type cyclin functions across different organ systems.
- Case study examples of diseases linked to D-type cyclin dysregulation.
Main Results:
- D-type cyclins are essential for proper cell cycle control, influencing both exit and progression.
- Defects in D-type cyclin pathways lead to aberrant stem cell differentiation during embryogenesis.
- Stabilized D-type cyclins are a hallmark of proliferative diseases, including cancers and overgrowth syndromes.
Conclusions:
- D-type cyclins are crucial for normal development and cellular homeostasis.
- Understanding D-type cyclin roles and dysregulation is vital for comprehending and potentially treating developmental disorders and cancers.
More Related Videos
10:54Studying Proteolysis of Cyclin B at the Single Cell Level in Whole Cell Populations
Published on: September 17, 2012
13:59Studying Mitotic Checkpoint by Illustrating Dynamic Kinetochore Protein Behavior and Chromosome Motion in Living Drosophila Syncytial Embryos
Published on: June 14, 2012
Related Concept Videos
Positive Regulator Molecules
M-Cdk Drives Transition Into Mitosis
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
Inhibition of Cdk Activity
The Cell Cycle Control System
Cyclins and cyclin-dependent kinases (Cdks) are the primary cell cycle regulators and...
Molecular Factors Affecting Cell Division
Several proteins function as internal regulators to ensure each cell cycle stage is completed faithfully before proceeding to the next. Regulator molecules may act directly or influence the activity or production of other...
Mitogens and the Cell Cycle