HMGA2 and cancer: Considering the increasing importance of the antisense lncRNAs in the regulation of coding genes and their involvement in cancer progression through the modulation of crucial oncogenes and oncosuppressors and taking advantage of the genome-wide expression datasets of the FANTOM5 Consortium, we decided to evaluate the presence, expression profile and functional potentials of previously unidentified antisense lncRNAs in HMGA1 and HMGA2 loci.