title: Multi-platform microRNA profiling of hepatoblastoma patients using formalin fixed paraffin embedded archival samples.
abstract: BACKGROUND
  Formalin fixed paraffin embedded (FFPE) samples are a valuable resource in cancer research and have the potential to be extensively used. However, they are often underused because of degradation and chemical modifications occurring in the RNA that can present obstacles in downstream analysis. In routine medical care, FFPE material is examined and archived, therefore clinical collections of many types of cancers exist. It is beneficial to assess and record the quality of data that can be obtained from this type of material. The current study investigated three independent platforms and their ability to profile microRNAs (miRNAs) within FFPE samples from hepatoblastoma (HB) patients.
  
  
  RESULTS
  Here we present three types of datasets consisting of miRNA profiles for 13 HB patients with different tumour types and molecular variations. The three platforms that were used to generate these data are: next-generation sequencing (Illumina MiSeq), microarray (Affymetrix(®) GeneChip(®) miRNA 3.0 array) and NanoString (nCounter, Human v2 miRNA Assay). The mature miRNAs identified are based on miRBase version 17 and 18.
  
  
  CONCLUSIONS
  These datasets provide a global landscape of miRNA expression for a rare childhood cancer that has not previously been well characterised. These data could serve as a resource for future studies aiming to make comparisons of HB miRNA profiles and to document aberrant miRNA expression in this type of cancer.
authors.affiliation: Department of Pathology, Dunedin School of Medicine, University of Otago, 270 Great King Street, P.O. Box 913, Dunedin, 9054 New Zealand.
authors.forename: Anna L
authors.initials: AL
authors.lastname: Leichter
authors.affiliation: Children's Cancer Research Group, University of Otago, Christchurch, New Zealand.
authors.forename: Rachel V
authors.initials: RV
authors.lastname: Purcell
authors.affiliation: Royal Children's Hospital, Melbourne, VIC Australia.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Sullivan
authors.affiliation: Department of Pathology, Dunedin School of Medicine, University of Otago, 270 Great King Street, P.O. Box 913, Dunedin, 9054 New Zealand ; Maurice Wilkins Centre for Molecular Biodiscovery, Level 2, 3A Symonds Street, Auckland, New Zealand.
authors.forename: Michael R
authors.initials: MR
authors.lastname: Eccles
authors.affiliation: Department of Pathology, Dunedin School of Medicine, University of Otago, 270 Great King Street, P.O. Box 913, Dunedin, 9054 New Zealand ; Maurice Wilkins Centre for Molecular Biodiscovery, Level 2, 3A Symonds Street, Auckland, New Zealand.
authors.forename: Aniruddha
authors.initials: A
authors.lastname: Chatterjee
mesh_terms: D020869:Gene Expression Profiling / Q000379:methods; D018197:Hepatoblastoma / Q000235:genetics*; D059014:High-Throughput Nucleotide Sequencing / Q000379:methods; D006801:Humans; D008113:Liver Neoplasms / Q000235:genetics*; D035683:MicroRNAs / Q000032:analysis / Q000096:biosynthesis; D016612:Paraffin Embedding; D016707:Tissue Fixation
chemical_list: D035683:MicroRNAs
keywords: Epigenetics; FFPE; Hepatoblastoma; Microarray; NanoString; Next-generation sequencing; RNA expression; miRNA