We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Deep sequencing reveals differential expression of microRNAs in favorable versus unfavorable neuroblastoma.
- Authors
Schulte, Johannes H; Marschall, Tobias; Martin, Marcel; Rosenstiel, Philipp; Mestdagh, Pieter; Schlierf, Stefanie; Thor, Theresa; Vandesompele, Jo; Eggert, Angelika; Schreiber, Stefan; Rahmann, Sven; Schramm, Alexander
- Abstract
Small non-coding RNAs, in particular microRNAs(miRNAs), regulate fine-tuning of gene expression and can act as oncogenes or tumor suppressor genes. Differential miRNA expression has been reported to be of functional relevance for tumor biology. Using next-generation sequencing, the unbiased and absolute quantification of the small RNA transcriptome is now feasible. Neuroblastoma(NB) is an embryonal tumor with highly variable clinical course. We analyzed the small RNA transcriptomes of five favorable and five unfavorable NBs using SOLiD next-generation sequencing, generating a total of >188 000 000 reads. MiRNA expression profiles obtained by deep sequencing correlated well with real-time PCR data. Cluster analysis differentiated between favorable and unfavorable NBs, and the miRNA transcriptomes of these two groups were significantly different. Oncogenic miRNAs of the miR17-92 cluster and the miR-181 family were overexpressed in unfavorable NBs. In contrast, the putative tumor suppressive microRNAs, miR-542-5p and miR-628, were expressed in favorable NBs and virtually absent in unfavorable NBs. In-depth sequence analysis revealed extensive post-transcriptional miRNA editing. Of 13 identified novel miRNAs, three were further analyzed, and expression could be confirmed in a cohort of 70 NBs.
- Publication
Nucleic acids research, 2010, Vol 38, Issue 17, p5919
- ISSN
1362-4962
- Publication type
Journal Article
- DOI
10.1093/nar/gkq342