Fig. 2
From: Cytotoxic effects of halophilic archaea metabolites on ovarian cancer cell lines
Cytotoxicity of halophilic archaea metabolites against cancer cell lines as determined by the MTT assay. A549, HepG2, SK-OV-3, A2780, A2780cis and HeLa cancer cell lines seeded at 5 × 104 cells/well were treated with 10 (white bars), 100 (grey bars) or 200 µg/mL (black bars) of culture supernatant extracts of Nnm. salaciae (NS), Hrd. rudnickae 64T (HR64) or Hrd. rudnickae 66 (HR66), or with fresh culture medium extract (medium) for 48 h at 37 °C and 5% CO2. Cytotoxicity was determined by using the MTT colorimetric assay and is expressed as mean percentages ± SD. n = 4; *p < 0.05 compared to medium