Characterization of ex vivo expanded natural killer cells for cancer immunotherapy.

ABSTRACT: In this study, we employed a coculture system to expand natural killer (NK) cells ex vivo from healthy donors and patients with breast cancer and investigated their surface marker expression. We further analyzed the activation markers of primary expanded NK cells on Day 13 using cytokine arrays and dimensionality reduction techniques. Cytokine profiles were observed on Days 0, 6 and 13 (TS-NK). To validate the anticancer activity of the expanded NK cells, we conducted lactate dehydrogenase assays against the hematologic cancer cell line K562 using cells from 10 donors (five patients with cancer and five healthy individuals). Additionally, we examined the antibody-dependent cellular cytotoxicity (ADCC) of differentiated NK cells cocultured with SK-BR-3 cells in the presence of the HER2-targ

SUBMITTER: Min JY 

PROVIDER: S-EPMC12392702 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature