SMU-L11-R is a selective TLR7 agonist with an EC50 of 0.012 µM for human TLR7. SMU-L11-R specifically activates TLR7, recruits MyD88, and triggers MAPK/NF-kappaB pathways, leading to TNF-alpha/IL-1beta/IL-6 secretion in both mouse and human peripheral blood mononuclear cells. SMU-L11-R promotes M1-like macrophage polarization. SMU-L11-R exhibits excellent synergistic anti-tumor effects with PD-L1 inhibitors by upregulating CD8+T cells. SMU-L11-R shows potential in colorectal cancer studies[1].