Retinoblastoma gene expression data

Retinoblastoma is the most common intraocular cancer of infancy and childhood, with an incidence of one case per 15,000 - 20,000 live births. An early event in retinoblastoma genesis is a functional loss of both alleles of the RB1 gene. However, other genes are likely to be involved in the development of this cancer. In this study we sought to build a comprehensive molecular portrait of this cancer by performing transcriptomic, methylomic, genomic profiling of primary retinoblastoma samples. Most of the patients whose tumors were studied had received no treatment prior to surgical enucleation. Gene expression of 63 samples retinoblastomas tumor and 3 fetal retina were assesed using the Hg-U133 Plus 2.0 Affymetrix array