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The images of H22 tumor spheroids treated with free Dox, Dox-LPs, Dox-TPGS-LPs, or siBcl-2/Dox-TPGS-LPs containing 5 µg/mL Dox for 72 hours; untreated tumor spheroids served as a control.
Note: Scale bars represent 50 µm.
Abbreviations: Dox, doxorubicin; LPs, liposomes; siBcl-2, Bcl-2 siRNA; TPGS, D-α-tocopherol polyethylene glycol 1000 succinate.
