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BIOMARKER:
SLAMF8 overexpression
i
Other names: SLAMF8, SLAM Family Member 8, BLAME, SBBI42, CD353, BCM-Like Membrane Protein, B Lymphocyte Activator Macrophage Expressed, B-Lymphocyte Activator Macrophage Expressed, CD353 Antigen
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The mRNA expression level of SLAMF8 was positively correlated with the expression levels of multiple classic immune checkpoints and other SLAM family members. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis suggested that the pathways enriched in CRC tissues with high SLAMF8 expression were associated with the regulation of the tumor immune microenvironment.
Exogenous overexpression of SLAMF8 in macrophages resulted in enrichment of positive regulation of multiple immune-related pathways. Higher SLAMF8 expression may predict better anti-PD1 immunotherapy efficacy in GI cancer.