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Psychophysiological stress-regulated gene expression in mice.
Shigenori Murata1, Taeko Yoshiara, Chun Ren Lim
1DNA Chip Research Inc., 1-1-43 Suehiro, Tsurumi, Yokohama 230-0045, Japan. murata@dna-chip.co.jp
FEBS Letters
|April 7, 2005
Summary
Psychophysiological stress alters gene expression across mouse tissues. While most genes respond broadly, cdc2-like kinase 1 (CLK1) shows unique brain-specific transcriptional changes and altered splicing in all tissues, indicating coordinated whole-body stress responses.
Area of Science:
- Molecular Biology
- Stress Physiology
- Genomics
Background:
- Psychophysiological stress impacts biological systems.
- Gene expression changes are key indicators of cellular response to stress.
- Understanding stress-induced molecular mechanisms is crucial for physiological health.
Purpose of the Study:
- To investigate gene expression alterations in mice subjected to psychophysiological stress.
- To identify specific genes and molecular events involved in the stress response.
- To explore the coordination of stress responses across different tissues.
Main Methods:
- Mice were exposed to psychophysiological stress (cage-restraint and water-immersion).
- Gene expression levels were analyzed across multiple tissues.
- Differential gene expression and mRNA splicing patterns were assessed.
Main Results:
- Eight genes exhibited significant expression changes under stress.
- Most affected genes showed altered transcription in all analyzed tissues.
- cdc2-like kinase 1 (CLK1) displayed brain-specific transcriptional reduction and altered splicing in all tissues.
Conclusions:
- Stress response involves coordinated transcriptional and post-transcriptional events throughout the body.
- CLK1 gene expression and splicing are uniquely modulated by stress.
- These findings highlight a systemic coordination of molecular stress-response mechanisms in mice.