Potential strategies to sensitize tumors to irinotecan: Strategy Rationale GSH depletion Reduces detox of SN-38 PRDX/TXNRD stress Lowers redox buffering Glycolysis inhibition Limits repair energy PEMF / AgNPs ↑ ROS, ↑ drug uptake Timing selenium Avoid boosting antioxidant defenses during therapyReport of combining CPT-11 and SeNPs to increase NRF2 in normal cells(chemoprotective) and decrease NRF2 in cancer cells(chemosentization).