Concentration dependent effects of curcumin and Lipocurc on cancer cell viability. cOSA (Abrams, D17), hOSA (MG63, U2OS), canine mammary carcinoma (CMT12, CMT27), and canine melanoma (UCDK9M3, UCDK9M5) cell lines were exposed to increasing concentrations of curcumin (black) or Lipocurc (grey). Viability was assessed via an MTS assay after 72 hours of drug exposure. Values represent the proportion of viable cells remaining compared to untreated controls. Error bars represent standard deviation. Results are representative of 2 separate experiments.