PTGIS and neoplasm: PTGIS and IL6 were among the top molecules identified to have the strongest negative correlation with tumoral miR-192 expression (levels increased by 84%, P=2.32 × 10−8 and 43%, P=0.018 in tumours with low miR-192 compared with the ones with high miR-192, respectively; miR-192 percentile cutoff of 0.26 was used for defining high versus low expression).