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[Amplification of γδ T cells in PBMCs of healthy donors and osteosarcoma patients stimulated by zoledronate]. | LitMetric
Aim : To investigate the amplification and cytotoxicity of γδ T cells in peripheral blood mononuclear cells (PBMCs) of healthy donors and osteosarcoma patients stimulated by zoledronate (Zol) and IL-2.Methods : PBMCs from healthy donors and osteosarcoma patients were stimulated with IL-2 and Zol+IL-2, respectively. After 14-day culture, the purity of γδ T cells was assessed by flow cytometry. The cytotoxicity of γδ T cells against target cells was analyzed using a standard lactate dehydrogenase release assay with γδ T lymphocyte-sensitive Daudi cells, γδ T lymphocyte-resistant Raji cells and human osteoblast cell line, hFOB, as the target cells.Results : After 2-week culture ex vivo of PBMCs from healthy donors and osteosarcoma patients, compared with stimulation of IL-2, Zol+IL-2 significantly promoted the amplification of γδ T cells. In addition, γδ T cells showed the higher cytotoxicity against Daudi cells, but no cytotoxic effect on normal cells like hFOB.Conclusion : γδ T cells of high purity and high cytotoxicity can be obtained by the stimulation of Zol combined with IL-2 on PBMCs from healthy donors and osteosarcoma patients.
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