Across TCGA pan-cancer cohorts, SNORD90 RNA differs between tumor and matched normal tissue in 3 of 18 cancer types tested, making tumor–normal expression one of SNORD90’s most consistent transcriptional readouts.
The strongest signal is observed in uterine corpus endometrial carcinoma (UCEC), where SNORD90 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types SNORD90 is over-expressed in tumor.
UCEC, STAD, and COAD are the cancer types where SNORD90 tumor–normal differential expression is most reproducible.