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Updated: Mar 26, 2026

Cell Cycle-specific Measurement of γH2AX and Apoptosis After Genotoxic Stress by Flow Cytometry
Published on: September 1, 2019
The DNA damage-induced cell death response: a roadmap to kill cancer cells
Sonja Matt1, Thomas G Hofmann2
1German Cancer Research Center (dkfz), Cellular Senescence Group, DKFZ-ZMBH Alliance, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.
Abstract:
Upon massive DNA damage cells fail to undergo productive DNA repair and trigger the cell death response. Resistance to cell death is linked to cellular transformation and carcinogenesis as well as radio- and chemoresistance, making the underlying signaling pathways a promising target for therapeutic intervention. Diverse DNA damage-induced cell death pathways are operative in mammalian cells and finally culminate in the induction of programmed cell death via activation of apoptosis or necroptosis. These signaling routes affect nuclear, mitochondria- and plasma membrane-associated key molecules to activate the apoptotic or necroptotic response. In this review, we highlight the main signaling pathways, molecular players and mechanisms guiding the DNA damage-induced cell death response.
Insights
Cells resisting DNA damage-induced death can lead to cancer and treatment resistance. Understanding these cell death pathways, including apoptosis and necroptosis, is key for developing new therapies targeting cancer.
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- Cellular resistance to DNA damage-induced death contributes to cancer development and treatment failure.
- Identifying the molecular mechanisms of cell death is crucial for therapeutic strategies.
Purpose of the Study:
- To review the signaling pathways involved in DNA damage-induced cell death.
- To highlight key molecular players and mechanisms in apoptosis and necroptosis.
Main Methods:
- Literature review of signaling pathways.
- Analysis of molecular mechanisms in cell death induction.
Main Results:
- DNA damage triggers cell death pathways like apoptosis and necroptosis when repair fails.
- These pathways involve nuclear, mitochondrial, and plasma membrane molecules.
- Resistance to cell death is a hallmark of cancer and treatment resistance.
Conclusions:
- Understanding DNA damage-induced cell death pathways is vital for cancer therapy.
- Targeting these pathways offers potential for overcoming radio- and chemoresistance.
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