Related Experiment Video

Updated: Aug 12, 2026

Through the Looking Glass: Time-lapse Microscopy and Longitudinal Tracking of Single Cells to Study Anti-cancer Therapeutics
06:00

Through the Looking Glass: Time-lapse Microscopy and Longitudinal Tracking of Single Cells to Study Anti-cancer Therapeutics

Published on: May 14, 2016

Tumor suppressors: linking cell polarity and growth control

A Wodarz1

  • 1Institut für Genetik, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany. wodarz@uni-duesseldorf.de

Current Biology : CB
|September 21, 2000
PubMed

Insights

Tumor suppressor genes in Drosophila, including scribble, discs large, and lethal giant larvae, function together. Mutations disrupt cell polarity and cause epithelial overgrowth, linking cell structure to growth regulation.

Area of Science:

  • Developmental biology
  • Cell biology
  • Genetics

Background:

  • The Drosophila tumor suppressor genes scribble (scrib), discs large (dlg), and lethal giant larvae (lgl) are crucial for maintaining tissue organization.
  • Loss of function in these genes is associated with developmental defects and uncontrolled cell proliferation.

Purpose of the Study:

  • To investigate the functional relationship between scribble, discs large, and lethal giant larvae in Drosophila.
  • To elucidate the connection between cellular architecture and growth control pathways.

Main Methods:

  • Genetic analysis of Drosophila mutants for scribble, discs large, and lethal giant larvae.
  • Phenotypic analysis of epithelial tissues to assess cell polarity and proliferation.

Main Results:

  • Mutations in scribble, discs large, or lethal giant larvae individually lead to a loss of apical-basal cell polarity.
  • These mutations also result in the overproliferation of epithelial cells.
  • The findings suggest these genes act in a common genetic pathway.

Conclusions:

  • Scribble, discs large, and lethal giant larvae function in a shared pathway critical for maintaining epithelial polarity in Drosophila.
  • Disruption of this pathway directly impacts growth control, highlighting the interplay between cytoarchitecture and proliferation.

More Related Videos

Induction and Diagnosis of Tumors in Drosophila Imaginal Disc Epithelia08:14

Induction and Diagnosis of Tumors in Drosophila Imaginal Disc Epithelia

Published on: July 25, 2017

Characterization of Cell Membrane Extensions and Studying Their Roles in Cancer Cell Adhesion Dynamics08:11

Characterization of Cell Membrane Extensions and Studying Their Roles in Cancer Cell Adhesion Dynamics

Published on: March 26, 2018

Related Concept Videos

Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
Loss of Tumor Suppressor Gene Functions01:12

Loss of Tumor Suppressor Gene Functions

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Loss of Tumor Suppressor Gene Functions01:12

Loss of Tumor Suppressor Gene Functions

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...