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Changes in gene expression associated with retinal degeneration in the rd3 mouse
Christiana L Cheng1, Robert S Molday
1Department of Biochemistry and Molecular Biology, Centre for Macular Research University of British Columbia Vancouver, B.C. V6T 1Z3 Canada.
Molecular Vision
|May 21, 2013
Summary
Gene expression changes in the rd3 mouse model reveal immune response and phototransduction pathway alterations, offering insights into Leber congenital amaurosis (LCA) type 12 pathogenesis.
Area of Science:
- Genetics
- Ophthalmology
- Molecular Biology
Background:
- Leber congenital amaurosis (LCA) type 12 is a severe inherited retinal dystrophy.
- The rd3 mouse is a model for LCA type 12, characterized by photoreceptor degeneration.
- Understanding gene expression changes is crucial for elucidating disease mechanisms.
Purpose of the Study:
- To identify and characterize gene expression alterations in the rd3 mouse retina.
- To investigate the molecular pathways involved in photoreceptor degeneration in LCA type 12.
Main Methods:
- Global gene expression profiling using microarray technology on rd3 and wild-type mouse retinas.
- Quantitative PCR was used to validate microarray findings.
Main Results:
- Over 1,100 transcripts were differentially regulated in rd3 mice.
- Upregulated genes were predominantly involved in immune response.
- Downregulated genes were associated with phototransduction and lipid metabolism pathways.
Conclusions:
- The study identified key pathways, including immune response, phototransduction, and lipid metabolism, implicated in rd3 mouse photoreceptor degeneration.
- These findings provide insights into LCA type 12 pathogenesis and suggest future research directions.
