Abstract
Circular RNAs (circRNAs) are a recently identified class of long non-coding RNAs and their expression is regulated in a tissue- and developmental stage-specific manner. Recent studies indicate the potential regulatory role that circRNAs may have, particularly in the brain, where they are most abundant. This study aims to elucidate changes in circRNA patterns during human embryonic brain development. We detected a number of differentially expressed genes that showed distinct expression profiles for circular and linear transcripts despite having originated from the same genes, implicating a dichotomy in the regulation of these two RNA species. Altogether our study showed that circular and linear RNAs have independent expression patterns, and that circular transcriptomes from different developing stages have distinct characteristics in terms of transcript abundance and isoform diversity.
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