Fig. 5From: Natural killer (NK) cells inhibit systemic metastasis of glioblastoma cells and have therapeutic effects against glioblastomas in the brainGBM cell lysis effects of expanded human NK cells. a Surface expression of HLA-ABC, HLA-E, NKG2D ligands (MIC-A/B, ULBP-1, and ULBP-2), and DNAM-1 ligands (CD112, CD155) on tumor cells was analyzed by flow cytometry. b In vitro cytotoxicity of expanded NK cells against K562 and U-87 MG cells was determined by 51Cr-release assay. Data = mean ± SDBack to article page