Impact of P6 peptide, colchicine, and colchicine-P6 peptide conjugate treatments on human THP-1 macrophage cell viability at 24 h using the Cell Counting Kit-8 (CCK-8) assay. P6 peptide and colchicine-P6 peptide treatments (1, 10, and 25 μM) showed no significant difference in cell viability when compared with the control. Colchicine (1, 10, and 25 μM) dose-dependently reduced macrophage cell viability. Data are presented as scatter plots of three independent experiments with at least duplicate wells per treatment. Mean and standard deviations are highlighted. * p < 0.001; n.s.: non-significant.