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Mitogens and the Cell Cycle

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...

Mitogens and the Cell Cycle

Mitogens and the Cell Cycle

Positive Regulator Molecules

Positive Regulator Molecules

Mitotic cell division results in daughter cells that exactly resemble the parent cell. However, errors in the DNA replication or distribution of genetic material may lead to genetic mutations that may be passed down to every new cell formed from the resulting abnormal cell. Propagation of such mutant cells is restricted through checkpoint mechanisms present at different stages of the cell cycle. These checkpoints involve regulator molecules that either promote or demote cell cycle events.

Positive Regulator Molecules

Positive Regulator Molecules

To consistently produce healthy cells, the cell cycle—the process that generates daughter cells—must be precisely regulated.

M-Cdk Drives Transition Into Mitosis

M-Cdk Drives Transition Into Mitosis

Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
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...

M-Cdk Drives Transition Into Mitosis

M-Cdk Drives Transition Into Mitosis

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Related Experiment Video

Updated: May 2, 2026

Visualization of Cell Cycle Variations and Determination of Nucleation in Postnatal Cardiomyocytes

Visualization of Cell Cycle Variations and Determination of Nucleation in Postnatal Cardiomyocytes

Published on: February 24, 2017

Cardiomyocyte cell cycle: Meis-ing something?

Ahmed I Mahmoud¹, Diana Canseco², Feng Xiao²

¹Cardiovascular Division; Department of Medicine; Brigham and Women's Hospital and Harvard Medical School; Cambridge, MA USA.

Cell Cycle (Georgetown, Tex.)

|March 8, 2014

Summary

No abstract available in PubMed .

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