Table 1. Initial SAR of 8-OHQ Derivatives Obtained from the NCI DTP Drug Repository Listed by Their NSC Codes (Commercially Available Compound 5 Is Included as a Structural Counterpart to 1)a.
Data represent mean values with standard deviation obtained from 2 to 53 independent PrestoBlue assays for MES-SA and MES-SA/Dx5 cells in the absence and presence (values in parentheses) of 1 μM of the P-gp inhibitor tariquidar (TQ). MDR-selectivity ratio (SR) is defined as the fraction of IC50 values obtained in P-gp negative vs positive cells. See Table S1 for toxicity data on further MDR cell lines.