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Updated: Jan 30, 2026
10:24
Two- and Three-Dimensional Live Cell Imaging of DNA Damage Response Proteins
Published on: September 28, 2012
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A systems view on DNA damage response kinetics in Tetrahymena
Emily Nischwitz1, Vivien Schoonenberg1, Rachel Mullner1,2
1Institute of Molecular Biology (IMB), 55128 Mainz, Germany.
Genome Research
|January 28, 2026
Summary
This study investigates the genome
Area of Science:
- Genomics and molecular biology
- Cellular response to DNA damage
- Eukaryotic gene expression dynamics
Background:
- Genome integrity relies on a tightly regulated DNA damage response (DDR).
- Understanding DDR kinetics is crucial for deciphering cellular responses to genotoxic stress.
Purpose of the Study:
- To comprehensively analyze the kinetics of the DNA damage response in *Tetrahymena thermophila*.
- To integrate transcriptomic and proteomic data for a dynamic view of DDR.
Main Methods:
- Combined transcriptomics and proteomics across six damaging conditions (HU, MMS, IR, HP, cisplatin, UV) and seven time points (0-8 hours).
- Utilized artificial neural networks to classify expression trends and identify response patterns.
- Integrated over 250 paired transcriptome and proteome measurements.
Main Results:
- Observed upregulation of known DNA repair proteins.
- Identified a global dynamic response involving uncharacterized transcripts and proteins.
- Neural networks revealed core and specific DDR patterns, uncovering pathway crosstalk.
Conclusions:
- The study provides novel insights into DNA damage response kinetics in *Tetrahymena*.
- Highlights a complex and dynamic cellular response to various genotoxic stressors.
- The integrated dataset offers a valuable resource for further DDR research.
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