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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,...
Polarity of the Cytoskeleton01:18

Polarity of the Cytoskeleton

The intrinsic polarity of cells can be primarily attributed to two factors- i) the asymmetric accumulation of mobile components such are regulatory molecules and subcellular components across the cell and ii) the orientation of polar cytoskeletal filaments that make up the cytoskeletal networks, specifically microfilaments, and microtubules arranged along the axis of polarity. Interactions between the cytoskeletal filaments are crucial for the establishment and maintenance of the polar nature...
Determining the Plane of Cell Division02:13

Determining the Plane of Cell Division

Positioning the cell division plane is a critical step during development and cell differentiation, particularly during mitosis when the plane is essential for determining the size of the two daughter cells. The cell division plane is perpendicular to the plane of chromosome segregation, but different types of organisms have different cell division mechanisms to suit their morphology and function. 
Animal cells
In animal cells, the cleavage furrow forms along the plane of cell division starting...
Determining the Plane of Cell Division02:13

Determining the Plane of Cell Division

Positioning the cell division plane is a critical step during development and cell differentiation, particularly during mitosis when the plane is essential for determining the size of the two daughter cells. The cell division plane is perpendicular to the plane of chromosome segregation, but different types of organisms have different cell division mechanisms to suit their morphology and function. 
Animal cells
In animal cells, the cleavage furrow forms along the plane of cell division starting...
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.
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.

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Related Experiment Video

Updated: Jun 28, 2026

En Face Endocardial Cushion Preparation for Planar Morphogenesis Analysis in Mouse Embryos
08:57

En Face Endocardial Cushion Preparation for Planar Morphogenesis Analysis in Mouse Embryos

Published on: July 27, 2022

Planar cell polarity: A bridge too far?

Peter A Lawrence1, Gary Struhl, José Casal

  • 1Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK. pal@mrc-lmb.cam.ac.uk

Current Biology : CB
|October 30, 2008
PubMed
Summary

Genetic analysis reveals new insights into planar cell polarity mechanisms. Studies show interactions between Flamingo, Frizzled, and Van Gogh proteins are key to this process.

Area of Science:

  • Developmental Biology
  • Cell Biology
  • Genetics

Background:

  • Planar cell polarity (PCP) governs tissue organization and cell orientation.
  • Understanding PCP mechanisms is crucial for developmental processes.
  • Genetic studies are fundamental to dissecting complex cellular pathways.

Purpose of the Study:

  • To elucidate the intricate mechanisms underlying planar cell polarity.
  • To investigate the functional interactions between key PCP proteins.
  • To provide new genetic insights into PCP pathway regulation.

Main Methods:

  • Utilizing genetic analysis to study protein interactions.
  • Observing the roles of Flamingo, Frizzled, and Van Gogh proteins.
  • Employing molecular and cellular biology techniques.

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Evaluation of Planar-Cell-Polarity Phenotypes in Ciliopathy Mouse Mutant Cochlea
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Evaluation of Planar-Cell-Polarity Phenotypes in Ciliopathy Mouse Mutant Cochlea

Published on: February 21, 2016

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The C. elegans Intestine As a Model for Intercellular Lumen Morphogenesis and In Vivo Polarized Membrane Biogenesis at the Single-cell Level: Labeling by Antibody Staining, RNAi Loss-of-function Analysis and Imaging
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07:07

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Main Results:

  • New insights into the interactions between Flamingo, Frizzled, and Van Gogh proteins.
  • Demonstrated genetic evidence for the interplay of these three proteins in PCP.
  • Identified specific roles for each protein in establishing cell polarity.

Conclusions:

  • Genetic analysis is a powerful tool for uncovering PCP mechanisms.
  • The Flamingo, Frizzled, and Van Gogh protein complex is central to PCP.
  • Further research will build upon these findings to understand tissue development.