Journal
BIOGERONTOLOGY
Volume 14, Issue 4, Pages 395-400Publisher
SPRINGER
DOI: 10.1007/s10522-013-9433-8
Keywords
RNA editing; RNA-seq; Cerebral cortex; Brain aging
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Funding
- BBSRC [BBD5265291, BBH0084971]
- BBSRC [BB/H008497/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/H008497/1] Funding Source: researchfish
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RNA editing is a post-transcriptional process, which results in base substitution modifications to RNA. It is an important process in generating protein diversity through amino acid substitution and the modulation of splicing events. Previous studies have suggested a link between gene-specific reductions in adenosine to inosine RNA editing and aging in the human brain. Here we demonstrate that changes in RNA editing observed in humans with age are not observed during aging in healthy rats. Furthermore, we identify a conserved editing site in rats, in Cog3. We propose that either age-related changes in RNA editing are specific to primates or humans, or that they are the manifestation of disease pathology. Since rodents are often used as model organisms for studying aging, these findings demonstrate the importance of understanding species-specific differences in RNA biology during aging.
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