Related Experiment Video
Updated: Jul 2, 2026

Characterization of Cell Membrane Extensions and Studying Their Roles in Cancer Cell Adhesion Dynamics
Published on: March 26, 2018
Changes in regulation of cell-cell adhesion during tumor transformation
1Blokhin Cancer Research Center, Russian Academy of Medical Sciences, Moscow, 115478, Russia. natglu@hotmail.com.
Abstract:
Cadherin-mediated cell-cell adhesion defines the integrity of most tissues. Cell-cell adherens junctions are dynamic structures whose functional state is regulated by interactions of cadherin with beta-catenin, p120, and actin cytoskeleton structures. Small GTPases of the Rho family and GTPase Rap1 play the central role in the formation and maintenance of cell-cell adhesion. Aberrant activation of signaling pathways, transcriptional repression of the E-cadherin gene, ectopic expression of N-cadherin, and disturbances in regulation of adhesive and transcriptional functions of beta-catenin stimulate tumor progression.
Insights
Cadherin cell adhesion is vital for tissue integrity, regulated by proteins like beta-catenin. Disruptions in these adhesion processes can drive tumor progression.
Area of Science:
- Cell Biology
- Molecular Biology
- Cancer Research
Background:
- Cadherin-mediated cell-cell adhesion is crucial for maintaining tissue integrity.
- Adherens junctions are dynamic structures involving cadherins, beta-catenin, p120, and the actin cytoskeleton.
- Small GTPases, including Rho family members and Rap1, are key regulators of cell adhesion.
Purpose of the Study:
- To summarize the regulatory mechanisms of cadherin-mediated cell-cell adhesion.
- To highlight the role of specific proteins and signaling pathways in maintaining tissue integrity.
- To discuss how disruptions in cell adhesion contribute to tumor progression.
Main Methods:
- Literature review of cell adhesion mechanisms.
- Analysis of molecular interactions within adherens junctions.
- Examination of signaling pathways regulating cell-cell adhesion.
- Review of genetic and molecular alterations associated with cancer.
Main Results:
- Cadherin interactions with beta-catenin, p120, and actin cytoskeleton regulate adherens junction dynamics.
- Rho GTPases and Rap1 are central to the formation and maintenance of cell-cell adhesion.
- Aberrant signaling, E-cadherin repression, N-cadherin expression, and beta-catenin dysfunction promote tumor progression.
Conclusions:
- Proper cadherin function is essential for tissue integrity.
- Dysregulation of cell adhesion pathways is a hallmark of cancer progression.
- Targeting these pathways may offer therapeutic strategies for cancer.
Related Concept Videos
Cadherins in Tissue Organization
Cell Sorting During Development
Cell sorting plays an...
Cell Adhesion Molecules - Types and Functions
CAM Families
The Integrin family of proteins is primarily involved in a...
Cell Adhesion Molecules - Types and Functions
CAM Families
The Integrin family of proteins is primarily involved in a...
Cell-matrix's Response to Mechanical Forces
Anchoring junctions mechanically attach a cell to the...
Intracellular Signaling Affects Focal Adhesions
Some...
The Tumor Microenvironment

