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Related Concept Videos

The Retinoblastoma Gene01:20

The Retinoblastoma Gene

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.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The Retinoblastoma Gene01:20

The Retinoblastoma Gene

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.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The Blood-brain Barrier00:49

The Blood-brain Barrier

Overview
Functional Brain Systems: Reticular Formation01:13

Functional Brain Systems: Reticular Formation

The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...

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Related Experiment Video

Updated: Jul 12, 2026

Silencing of BRCA2 to Identify Novel BRCA2-regulated Biological Functions in Cultured Human Cells
09:24

Silencing of BRCA2 to Identify Novel BRCA2-regulated Biological Functions in Cultured Human Cells

Published on: August 12, 2015

BRCA2 function and the central nervous system.

Pierre-Olivier Frappart1, Peter J McKinnon

  • 1Department of Genetics and Tumor Cell Biology, St Jude Children's Research Hospital, Memphis, Tennessee, USA.

Cell Cycle (Georgetown, Tex.)
|September 6, 2007
PubMed
Summary

BRCA2 protein is crucial for DNA repair in the nervous system, preventing neurodegeneration and brain tumors. Our study highlights its essential role in neurogenesis and tumor suppression.

Area of Science:

  • Molecular Biology
  • Genetics
  • Neuroscience

Background:

  • Defects in DNA double-strand break (DSB) repair are linked to neurological disorders and cancer.
  • BRCA2 is a vital tumor suppressor involved in homologous recombination (HR) DNA repair.
  • BRCA2 plays a role in the Fanconi Anemia pathway.

Purpose of the Study:

  • To investigate the role of BRCA2 in neurogenesis and medulloblastoma prevention.
  • To understand BRCA2's in vivo functions within the nervous system.
  • To explore tissue-specific requirements for DNA repair and damage signaling.

Main Methods:

  • Utilized in vivo models to study BRCA2 function.
  • Examined the impact of BRCA2 deficiency on neurogenesis.
  • Assessed BRCA2's role in preventing brain tumors, specifically medulloblastoma.

More Related Videos

Identifying the Effects of BRCA1 Mutations on Homologous Recombination using Cells that Express Endogenous Wild-type BRCA1
08:53

Identifying the Effects of BRCA1 Mutations on Homologous Recombination using Cells that Express Endogenous Wild-type BRCA1

Published on: February 17, 2011

Functional Assessment of BRCA1 variants using CRISPR-Mediated Base Editors
09:22

Functional Assessment of BRCA1 variants using CRISPR-Mediated Base Editors

Published on: February 28, 2021

Related Experiment Videos

Last Updated: Jul 12, 2026

Silencing of BRCA2 to Identify Novel BRCA2-regulated Biological Functions in Cultured Human Cells
09:24

Silencing of BRCA2 to Identify Novel BRCA2-regulated Biological Functions in Cultured Human Cells

Published on: August 12, 2015

Identifying the Effects of BRCA1 Mutations on Homologous Recombination using Cells that Express Endogenous Wild-type BRCA1
08:53

Identifying the Effects of BRCA1 Mutations on Homologous Recombination using Cells that Express Endogenous Wild-type BRCA1

Published on: February 17, 2011

Functional Assessment of BRCA1 variants using CRISPR-Mediated Base Editors
09:22

Functional Assessment of BRCA1 variants using CRISPR-Mediated Base Editors

Published on: February 28, 2021

Main Results:

  • BRCA2 is essential for normal neurogenesis.
  • BRCA2 deficiency leads to medulloblastoma development.
  • Demonstrated the requirement of BRCA2 for DNA repair in neural cells.

Conclusions:

  • BRCA2 is critical for maintaining nervous system integrity.
  • BRCA2 functions are vital for preventing brain tumors.
  • This research clarifies tissue-specific DNA repair needs in vivo.