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Calpain-5 gene expression in the mouse eye and brain
Kellie Schaefer1, MaryAnn Mahajan1, Anuradha Gore1
1Omics Laboratory, Department of Ophthalmology, Byers Eye Institute, Stanford University, Palo Alto, CA, 94304, USA.
BMC Research Notes
|November 22, 2017
Summary
This study mapped calpain 5 (CAPN5) gene expression in the mouse central nervous system. CAPN5 RNA was detected in the retina, hippocampus, and cerebellum, with a punctate pattern in the brain.
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Calpains are calcium-dependent proteases involved in various cellular processes.
- The specific role and expression patterns of CAPN5 in the central nervous system are not fully elucidated.
Purpose of the Study:
- To characterize the gene expression of CAPN5 within the mouse central nervous system.
- To identify specific brain and retinal regions where CAPN5 is expressed.
Main Methods:
- In situ hybridization was performed on mouse brain and eye sections.
- High-affinity RNA oligonucleotide probes specific for CAPN5 RNA were utilized.
- Brightfield microscopy was used for image capture.
Main Results:
- CAPN5 RNA expression was observed in the ganglion cell, inner nuclear, and outer nuclear layers of the retina.
- In the brain, CAPN5 expression was found in the granule cell layers of the hippocampus and cerebellum, with scattered expression in the pons and faint signal in the visual cortex.
- The observed brain signal exhibited a predominantly punctate pattern.
Conclusions:
- CAPN5 exhibits a distinct expression pattern in specific neuronal populations within the mouse retina and central nervous system.
- These findings provide a foundation for investigating the functional roles of CAPN5 in these neural tissues.

