CTSS

Across TCGA pan-cancer cohorts, CTSS mass-spec protein differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of CTSS’s most consistent transcriptional readouts.

The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where CTSS mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types CTSS is over-expressed in tumor, although a few such as LSCC and CCRCC show the opposite, repressed pattern.

HNSC, LSCC, and CCRCC are the cancer types where CTSS tumor–normal differential expression is most reproducible.

mass-spec protein tumor vs normal associations by lineage

Ranked by sampling consensus. Fold-change is the tumor-versus-normal difference in CTSS mass-spec protein (log₂); positive values indicate higher expression in tumor. p-values are from the differential-expression test.

Lineage	Gender	Stage	Fold-change	p	Sampling consensus
HNSC	Male	All	+0.534	<.001	8	view →
LSCC	Male	II,III,IV	−0.535	<.001	7	view →
CCRCC	Male	All	−0.358	<.001	6	view →
PDAC	Female	All	+0.704	<.001	4	view →
LUAD	Female	III,IV	+0.430	.029	1	view →

Pink = over-expressed in tumor, green = repressed in tumor. Showing the 5 strongest of 5 lineages.

CTSS–HNSC

Open the HNSC breakdown →