Liang et al delivered doxorubicin (Dox) using H-ferritin–nanocaged nanoparticles developed a natural H-ferritin (HFn) nanocarrier that specifically delivered a high concentration of the therapeutic drug doxorubicin (Dox) to tumor cells and significantly inhibited tumor growth with a single-dose treatment [113]. The gene discussed is FTH1; the disease is neoplasm.