Fig. 2From: Chitosan nanoparticle-mediated co-delivery of shAtg-5 and gefitinib synergistically promoted the efficacy of chemotherapeutics through the modulation of autophagyThe in vitro transfection efficiency of EGFP-loaded NPs was investigated by observing the microscopic images of A549 cells and PLC cells following incubation with free EGFP and EGFP-loaded NPs for 48 h (a A549 cells; b PLC cells). Scale bar 50 μmBack to article page