Small RNA deep sequencing reveals a distinct miRNA signature released in exosomes from prion-infected neuronal cells.

ABSTRACT: Prion diseases are transmissible neurodegenerative disorders affecting both humans and animals. The cellular prion protein, PrP(C), and the abnormal infectious form, PrP(Sc), are found associated with exosomes, which are small 50-130 nm vesicles released from cells. Exosomes also contain microRNAs (miRNAs), a class of non-coding RNA, and have been utilized to identify miRNA signatures for diagnosis of disease. While some miRNAs are deregulated in prion-infected brain tissue, the role of miRNA in circulating exosomes released during prion disease is unknown. Here, we investigated the miRNA profile in exosomes released from prion-infected neuronal cells. We performed the first small RNA deep sequencing study of exosomes and demonstrated that neuronal exosomes contain a diverse range of RNA s

SUBMITTER: Bellingham SA 

PROVIDER: S-EPMC3505968 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature