CD47 is a leukocyte surface antigen, and high expression of CD47 helps tumors escape. CD47 inhibition leads to the activation of CD103+ dendritic cells, which leads to the recruitment and activation of natural killer cells and inhibits cancer development. CD47 Protein, Cynomolgus/Rhesus Macaque (HEK293, His) is the recombinant Rhesus Macaque, cynomolgus-derived CD47 protein, expressed by HEK293 , with C-His labeled tag.