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Dystrophin isoforms expressed in the mouse retina
T Tamura1, K Yoshioka, Y Jinno
1Department of Child Development, Kumamoto University Medical School, Japan.
Journal of the Neurological Sciences
|April 1, 1993
Summary
Dystrophin protein is present in the mouse retina, primarily as the brain type isoform. This study confirms dystrophin gene expression in retinal tissues using molecular methods.
Area of Science:
- Molecular Biology
- Neuroscience
- Genetics
Background:
- Dystrophin gene expression is known in various mouse tissues.
- Previous studies suggested dystrophin protein presence in the outer plexiform layer of the retina.
Purpose of the Study:
- To confirm and characterize dystrophin gene expression in the mouse retina.
- To identify specific dystrophin isoforms present in retinal tissues.
Main Methods:
- Analysis of messenger RNA (mRNA) from mouse retina and other tissues.
- Reverse transcription and polymerase chain reaction (RT-PCR) to detect dystrophin transcripts (DT).
- Sequencing of RT-PCR products to identify dystrophin isoforms.
Main Results:
- Dystrophin transcripts (DT) were detected in the mouse retina.
- The 5' sequences of retinal DT primarily matched the brain type.
- Additional RT-PCR products in the 3' region showed homology to human dystrophin isoforms.
- Retinal DT variations were consistent with those found in the brain.
Conclusions:
- Dystrophin is confirmed to be expressed in the mouse retina.
- The majority of dystrophin proteins in the retina belong to the brain type isoform.
- Dystrophin expression in the retina is similar to that in the brain.