Moreover, in order to investigate that PAM treatment may enhance γδ-T-cells cytotoxicity, ULBPs and MICA/B, are ligands for human NKG2D; we, therefore, assessed expression levels of MICA/B, ULBP2/5/6, and ULBP3 in the HTB75, OVCAR3, and SKOV3 ovarian cancer cell lines with and without treatment with PAM using a flow cytometric analysis. Here, ULBP3 is linked to ovarian cancer.