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Related Concept Videos

DNA Damage can Stall the Cell Cycle02:36

DNA Damage can Stall the Cell Cycle

In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
DNA Damage Can Stall the Cell Cycle02:36

DNA Damage Can Stall the Cell Cycle

In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
Nucleotide Excision Repair01:38

Nucleotide Excision Repair

DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Nucleotide Excision Repair01:08

Nucleotide Excision Repair

Overview
Nucleotide Excision Repair01:08

Nucleotide Excision Repair

Overview
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...

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Related Experiment Video

Updated: May 9, 2026

Laser Microirradiation to Study In Vivo Cellular Responses to Simple and Complex DNA Damage
10:44

Laser Microirradiation to Study In Vivo Cellular Responses to Simple and Complex DNA Damage

Published on: January 31, 2018

DUSP6 regulates drug sensitivity by modulating DNA damage response.

T V Bagnyukova1, D Restifo, N Beeharry

  • 1Program in Developmental Therapeutics, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111, USA.

British Journal of Cancer
|July 11, 2013
PubMed
Summary
This summary is machine-generated.

Dual specificity phosphatase 6 (DUSP6) depletion reduces cancer cell viability and enhances chemotherapy effectiveness. This study reveals DUSP6’s role in DNA damage response, impacting genomic integrity and cancer treatment sensitivity.

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Related Experiment Videos

Last Updated: May 9, 2026

Laser Microirradiation to Study In Vivo Cellular Responses to Simple and Complex DNA Damage
10:44

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Published on: January 31, 2018

Visualizing and Quantifying Endonuclease-Based Site-Specific DNA Damage
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Published on: August 21, 2021

Methods for Evaluating the Role of c-Fos and Dusp1 in Oncogene Dependence
10:09

Methods for Evaluating the Role of c-Fos and Dusp1 in Oncogene Dependence

Published on: January 7, 2019

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Dual specificity phosphatase 6 (DUSP6) is a mitogen-activated protein kinase phosphatase regulating ERK1/2 activity.
  • DUSP6 expression is altered in cancer and other pathological conditions.

Purpose of the Study:

  • To investigate the role of DUSP6 in cancer cell viability and response to therapy.
  • To elucidate the mechanisms by which DUSP6 influences DNA damage response (DDR).

Main Methods:

  • Cancer cell lines were depleted of DUSP6 using siRNA and shRNA.
  • Sensitivity to targeted inhibitors and chemotherapeutic agents was assessed in vitro and in vivo.
  • Proteomic analysis identified downstream signaling pathways and DNA damage response markers.

Main Results:

  • DUSP6 depletion reduced cancer cell viability and increased sensitivity to EGFR inhibitors and cytotoxic agents.
  • Inactivation of DUSP6 activated CHEK2 and p38 kinases within the DDR pathway.
  • Elevated levels of phosphorylated H2AX, ATM, and CHEK2 confirmed DUSP6’s role in regulating DDR.

Conclusions:

  • DUSP6 plays a significant role in maintaining genomic integrity in cancer cells.
  • Targeting DUSP6 may enhance the efficacy of chemotherapy and targeted therapies in cancer treatment.