Across TCGA pan-cancer cohorts, IGSF9B mass-spec protein is linked to patient survival in 1 of 34 cancer types, making it a survival-associated IGSF9B data layer compared with 28 for mass-spec protein and 8 for mutation status.
The strongest signal is observed in glioblastoma multiforme (GBM), where higher IGSF9B mass-spec protein is associated with better disease-free survival. In most high-consensus cancer types, elevated IGSF9B expression acts as an unfavorable survival marker, although some lineages such as GBM show a favorable association.
GBM are the cancer types where IGSF9B mass-spec protein most reproducibly stratifies survival.