Cytotoxicity against human leukemia (CCRF-CEM), acute promyelocytic leukemia (NB4), acute monocytic leukemia (THP1), and human lymphoma (U937) was determined using the Abcam® Water Soluble Tetrazolium Salts (WST-1) assay kit (ab155902 WST-1 Cell Proliferation Reagent, UK). Cell suspensions were incubated for 24 h, and then treated with different concentrations (0 to 100 μg/mL in complete media) of mushroom extracts for 48 h. Cells were then treated with 10 μL WST-1 reagent for 1 h, then A450 was read using a microplate reader [38 (link)].
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