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Related Concept Videos

Cell Polarization by Rho Proteins01:21

Cell Polarization by Rho Proteins

Cell polarity is the asymmetric distribution of cellular and membrane components, making one side of the cell different from the other. This polarity is essential to many processes such as embryogenesis, axon migration, glucose transport across epithelial cells, and directional cell migration. A migrating cell responds to intracellular or extracellular signals via molecular cascades that reorganize the actin cytoskeleton to establish this polarity. In these cells, the Rho family proteins Cdc42,...
Small GTPases - Ras and Rho01:24

Small GTPases - Ras and Rho

Ras and Rho are small monomeric GTPases that act downstream of receptor tyrosine kinase (RTK) and regulate various cellular processes. These GTPases switch between active and inactive states by binding to guanine nucleotides.
Three regulatory proteins control their activity:
Cell Migration01:19

Cell Migration

Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
Cell Migration01:09

Cell Migration

Cell migration, the process by which cells move from one location to another, is essential for the proper development and viability of organisms throughout their life. When cells are not able to migrate properly to their ordained locations, various disorders may occur. For example, disruption in cell migration causes chronic inflammatory diseases such as arthritis.
Chemotaxis and Direction of Cell Migration01:21

Chemotaxis and Direction of Cell Migration

Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon towards...
The Ras Gene02:38

The Ras Gene

The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a superfamily...

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Related Experiment Video

Updated: May 13, 2026

RhoC GTPase Activation Assay
09:58

RhoC GTPase Activation Assay

Published on: August 22, 2010

RhoA, RhoB and RhoC have different roles in cancer cell migration.

A J Ridley1

  • 1Randall Division of Cell and Molecular Biophysics, King's College London, New Hunt's House, Guy's Campus, London, UK. anne.ridley@kcl.ac.uk

Journal of Microscopy
|March 16, 2013
PubMed
Summary
This summary is machine-generated.

Rho GTPases (guanosine triphosphateases) like RhoA, RhoB, and RhoC regulate cell migration differently in cancer. Their distinct roles in cancer progression highlight unique contributions to cell movement and invasion.

Keywords:
CancerRho GTPasesRho isoformscell migration

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Last Updated: May 13, 2026

RhoC GTPase Activation Assay
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08:02

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Published on: October 5, 2014

Impedance-based Real-time Measurement of Cancer Cell Migration and Invasion
09:23

Impedance-based Real-time Measurement of Cancer Cell Migration and Invasion

Published on: April 2, 2020

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Cancer Research

Background:

  • Rho GTPases are key regulators of cell motility, influencing cell shape and migration through downstream effectors.
  • RhoA, RhoB, and RhoC, though related, exhibit distinct functions in cellular processes.
  • Dysregulation of Rho GTPase expression is implicated in various cancers.

Purpose of the Study:

  • To review the differential regulation of RhoA, RhoB, and RhoC expression in cancer.
  • To elucidate the distinct roles of RhoA, RhoB, and RhoC in cancer progression and metastasis.
  • To highlight the specific downstream effectors and protein complexes involved in their functions.

Main Methods:

  • Literature review of studies on Rho GTPase regulation and function in cancer.
  • Analysis of research on downstream effector proteins and their interaction with RhoA, RhoB, and RhoC.
  • Synthesis of findings regarding cancer cell migration and invasion mechanisms.

Main Results:

  • RhoA, RhoB, and RhoC are differentially regulated in cancer, impacting tumor progression.
  • These GTPases interact with distinct downstream effectors, leading to varied effects on cell shape and motility.
  • Specific stimuli activate RhoA, RhoB, and RhoC, influencing unique aspects of cancer cell migration and invasion.

Conclusions:

  • RhoA, RhoB, and RhoC play unique and distinct roles in cancer cell migration and invasion.
  • Their differential activation and effector interactions suggest specific contributions to cancer progression.
  • Understanding these distinct roles is crucial for developing targeted cancer therapies.