VENTANA PD-L1 (SP142) IHC Assay* is used to evaluate expression of PD-L1 protein in tumour cells and tumour infiltrating immune cells. PD-L1 expression may lead to inhibition of activated T cells, and therefore can indicate tumour immune evasion. This assay is highly specific, reproducible and designed to enhance visual contrast of immune cell staining within the tumour microenvironment. CE marked.
*Optimised for use on VENTANA BenchMark instruments.