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Published on: September 27, 2012
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Circadian cilia transcriptome in mouse brain across physiological and pathological states
Kiki Chen1, Kousha Changizi Ashtiani2, Roudabeh Vakil Monfared1
1Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University of California, 356A Med Surge II, Irvine, CA, 92697-4625, USA.
Molecular Brain
|September 20, 2024
Summary
Circadian rhythms in mouse brain cilia gene expression were identified across multiple regions. These patterns vary by brain area and adapt to physiological and pathological changes, offering insights into brain function.
Area of Science:
- Neuroscience
- Chronobiology
- Cell Biology
Background:
- Primary cilia are dynamic sensory organelles responding to cellular signals with rhythmic patterns.
- Previous studies identified rhythmic cilia-related gene expression in diurnal primates.
- This study investigates circadian patterns in nocturnal mouse brain cilia gene expression.
Purpose of the Study:
- To identify circadian patterns of cilia gene expression across six distinct mouse brain regions.
- To investigate region-specific variations and adaptability of these rhythmic patterns.
- To explore the influence of physiological and pathological conditions on cilia transcript oscillations.
Main Methods:
- Utilized computational techniques and transcriptomic data from four public databases.
- Analyzed circadian expression of cilia-associated genes in brainstem, cerebellum, hippocampus, hypothalamus, striatum, and suprachiasmatic nucleus.
- Examined shifts in rhythmic patterns under conditions like dopamine modulation, high-fat diet, and epilepsy.
Main Results:
- A significant proportion of cilia transcripts exhibit circadian rhythmicity across examined brain regions.
- Striatum, hippocampus, and cerebellum showed notable overrepresentation of rhythmic cilia transcripts.
- Region-specific variations in abundance and peak timing of circadian cilia genes were observed.
- Rhythmic patterns of cilia transcripts were found to shift under various physiological and pathological conditions.
Conclusions:
- The study reveals distinct circadian patterns of cilia transcripts in the mouse brain, varying by region.
- These rhythmic patterns demonstrate adaptability to different physiological and pathological states.
- Findings highlight the spatiotemporal dynamics of cilia in brain function and suggest areas for future research.
