Fig. 4. 4T1 tumor cells are resistant to CNL monotherapy.

In vitro viability of 4T1 cells exposed to various concentrations of CNL for either 24 or 48 hours (n=3–4). Viability is relative to GNL control group (n=10). Data was fitted with non-linear least square fit (black lines) from which the relative IC50 was calculated (black arrows).