Across TCGA pan-cancer cohorts, ICAM4 RNA is linked to patient survival in 1 of 34 cancer types, making it a survival-associated ICAM4 data layer compared with 5 for mutation status and 1 for mass-spec protein.
The strongest signal is observed in small cell lung cancer (SCLC), where higher ICAM4 RNA is associated with better disease-free survival. In most high-consensus cancer types, elevated ICAM4 expression acts as an unfavorable survival marker, although some lineages such as SCLC show a favorable association.
SCLC are the cancer types where ICAM4 RNA most reproducibly stratifies survival.