Abstract
Current genomic studies are limited by the availability of fresh tissue samples. Here, we show that Illumina RNA sequencing of formalin-fixed diagnostic tumor samples produces gene expression that is strongly correlated with matched frozen tumor samples (r>0.89). In addition, sequence variations identified from FFPE RNA show 99.67% concordance with that from exome sequencing of matched frozen tumor samples. Because FFPE is a routine diagnostic sample preparation, the feasibility results reported here will facilitate the setup of large-scale research and clinical studies in medical genomics that are currently limited by the availability of fresh frozen samples.
Original language | English (US) |
---|---|
Article number | 12335 |
Journal | Scientific reports |
Volume | 5 |
DOIs | |
State | Published - Jul 23 2015 |
Externally published | Yes |
ASJC Scopus subject areas
- General