PD-L1 (Programmed Death Ligand 1) is a key immune checkpoint protein exploited by tumors to evade immune surveillance. It is overexpressed in melanoma, non-small cell lung cancer (NSCLC), renal cell carcinoma, and head & neck cancers.
Current PD-L1-targeting therapies, such as monoclonal antibodies, have revolutionized oncology but face challenges:
Researchers, CROs, and oncology developers need new classes of PD-L1-binding ligands — cost-effective, specific, and adaptable for both therapeutic and diagnostic applications.