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Inhibition of Cdk Activity

Inhibition of Cdk Activity

The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...

Inhibition of CDK Activity

Inhibition of CDK Activity

The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...

Negative Regulator Molecules

Negative Regulator Molecules

Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.

The Cell Cycle Control System

The Cell Cycle Control System

The cell cycle regulation directs how a cell proceeds from one phase to the next and begins mitosis. The cell cycle control system includes intracellular regulatory molecules and external triggers. They provide "stop" or "advance" signals and operate at specific cell cycle stages termed checkpoints to ensure that a particular process is completed before the cell advances to the next phase.
Cyclins and cyclin-dependent kinases (Cdks) are the primary cell cycle regulators and function at the cell...

The Cell Cycle Control System

The Cell Cycle Control System

The cell cycle is an organized set of events that leads the cell to divide into two daughter cells, each containing chromosomes identical to the parent cell. It is the cell cycle that leads to the formation of an entire organism from a single-cell zygote. Besides, cell division also functions in the renewal or repair of tissues in adult multicellular eukaryotes. For example, in the bone marrow, the stem cells divide to form new blood cells. Although essential for several functions, cell...

The Cell Cycle Control System

The Cell Cycle Control System

The cell cycle is an organized set of events that leads the cell to divide into two daughter cells, each containing chromosomes identical to the parent cell. It is the cell cycle that leads to the formation of an entire organism from a single-cell zygote. Besides, cell division also functions in the renewal or repair of tissues in adult multicellular eukaryotes. For example, in the bone marrow, the stem cells divide to form new blood cells. Although essential for several functions, cell...

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Related Experiment Video

Updated: Jun 4, 2026

Studying Cell Cycle-regulated Gene Expression by Two Complementary Cell Synchronization Protocols

Studying Cell Cycle-regulated Gene Expression by Two Complementary Cell Synchronization Protocols

Published on: June 6, 2017

SHP-1 in cell-cycle regulation.

Pilar López-Ruiz¹, Javier Rodriguez-Ubreva, Ariel Ernesto Cariaga

¹Department of Biochemistry and Molecular Biology, University of Alcalá, Alcalá de Henares, Madrid, Spain.

Anti-Cancer Agents in Medicinal Chemistry

|February 5, 2011

Summary

This summary is machine-generated.

The protein tyrosine phosphatase SHP-1 plays a crucial role in cell proliferation and cancer development. Inhibiting SHP-1 shows promise as a therapeutic strategy for treating various tumors.

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Studying Cell Cycle-regulated Gene Expression by Two Complementary Cell Synchronization Protocols

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Combining Mitotic Cell Synchronization and High Resolution Confocal Microscopy to Study the Role of Multifunctional Cell Cycle Proteins During Mitosis

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Published on: December 5, 2017

Area of Science:

Biochemistry
Cell Biology
Oncology

Background:

Reversible protein phosphorylation, regulated by protein tyrosine kinases (PTKs) and phosphatases (PTPs), is vital for cell signaling.
Dysregulation of PTKs and PTPs contributes to abnormal cell signaling and diseases like cancer.

Purpose of the Study:

This review examines recent research on the protein tyrosine phosphatase SHP-1.
It focuses on SHP-1's role in cell-cycle regulation and its involvement in tumor initiation and progression.

Main Methods:

Literature review of recent studies on SHP-1.
Analysis of SHP-1's function in cell proliferation and cancer.

Main Results:

SHP-1, a PTP with SH2 domains, is expressed in hematopoietic and malignant epithelial cells.
SHP-1 regulates cell proliferation by influencing mitogenic pathways and cell-cycle components (CDK2, p27, cyclin D1).

Conclusions:

SHP-1 is implicated in cell-cycle control and tumor development.
SHP-1 is a potential therapeutic target for cancer treatment, with inhibitors showing efficacy.