Ventana PD-L1 SP142

**Semantic type:** Laboratory Procedure

**Definition:** A proprietary assay for PD-L1 (Programmed Cell Death 1 Ligand 1). It uses rabbit monoclonal antibody SP142 to specifically bind PD-L1 on the cell membrane of immune cells and normal and tumor cells of epithelial origin in formalin-fixed, paraffin-embedded (FFPE) specimens.

**Synonyms:** - PD-L1 by clone SP142 [Presence] in Tissue by Immune stain - SP142 - Ventana PD L1 SP142 - Ventana PD-L1 (SP142) Assay - Ventana SP142