The sodium-dependent phosphate transport protein 2b (NaPi2b), encoded by the SLC34A2 gene, is highly overexpressed in high-grade epithelial ovarian cancer and non-small-cell lung cancer while exhibiting minimal expression in normal adult tissues, making it a relevant tumor-associated antigen and a promising target for antibody-drug conjugates (ADCs).
ADC Therapeutics SA has described antibody-drug conjugates comprising antibody targeting sodium-dependent phosphate transport protein 2B (SLC34A2; NaPi-2b) covalently linked to exatecan through a linker reported to be useful for the treatment of ovarian cancer and non-small-cell lung cancer (NSCLC).
Researchers from Zymeworks Inc. recently reported preclinical data for ZW-220, an antibody-drug conjugate (ADC) consisting of humanized IgG1 monoclonal antibody targeting sodium-dependent phosphate transport protein 2B (SLC34A2, NaPi2b) conjugated to a topoisomerase I inhibitor, being developed for the treatment of cancer.
