Transcriptome profiling of the rat retina after optic nerve transection
Masayuki Yasuda1, Yuji Tanaka2, Kazuko Omodaka1
1Department of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
Scientific Reports
|June 30, 2016
Summary
This study reveals key genes and pathways involved in retinal ganglion cell death following optic nerve injury, offering potential new therapeutic targets for glaucoma treatment.
Area of Science:
- Neuroscience
- Ophthalmology
- Genomics
Background:
- Glaucoma involves optic nerve head (ONH) changes and retinal ganglion cell (RGC) loss.
- RGC death is linked to axonal injury from ONH compression, but molecular mechanisms remain unclear.
Purpose of the Study:
- To investigate transcriptome changes in rat retinas after optic nerve transection (ONT).
- To predict alterations in the transcriptional regulatory network.
- To identify molecular targets for glaucoma therapy.
Main Methods:
- RNA sequencing (RNA-seq) was used to analyze rat retinas 2 days post-ONT.
- Computational techniques predicted changes in the transcriptional regulatory network.
- In silico pathway analysis identified key regulatory molecules.
Main Results:
- 267 differentially expressed genes were identified post-ONT, including 49 unannotated transcripts.
- Potentially novel transcript isoforms were discovered.
- CREB1 was predicted as the most significant upstream regulator.
Conclusions:
- This study identifies critical genes and pathways in axonal injury-induced RGC death.
- The findings provide a valuable resource for understanding glaucoma's molecular basis.
- Novel therapeutic targets for glaucoma may be discovered from this data.
