A dual gate-controlled intelligent nanoreactor enables collaborative precise treatment for cancer nanotherapy

Nanoscale. 2022 Sep 22;14(36):13113-13122. doi: 10.1039/d2nr03676b.

Abstract

Recently, disulfiram (DSF), approved by the FDA as an anti-alcoholic drug, has been proved as an effective antitumor drug after chelating with Cu2+. To overcome the shortage of intracellular Cu2+, we have constructed a dual gate-controlled intelligent nanoreactor (HA-DSF@HCuS@FePtMn, HDHF) via the ingenious combination of hollow copper sulfide (HCuS) nanoparticles, DSF and FePtMn nanocrystals. HDHF has a NIR-actuated gate and enzyme-actuated gate that could be opened in the hyaluronidase-abundant tumor microenvironment with NIR laser irradiation to trigger drug (DSF/FePtMn) release and synergistic therapy. Moreover, the FePtMn nanocrystals could continuously release Fe2+, which could catalyze H2O2 into highly cytotoxic hydroxyl radicals (˙OH), triggering chemodynamic therapy (CDT). When exposed to NIR laser, HCuS could collapse and release Cu2+, which could immediately chelate with DSF, forming the effective anticancer drug (Cu(DTC)2) and enabling DSF-based chemotherapy. More importantly, the efficient photothermal therapy (PTT) effect of HCuS could accelerate the FePtMn-based CDT and the release of Cu2+/DSF, improving tumor treatment efficiency. Thus, this study represents a distinctive paradigm of a dual gate-controlled intelligent nanoreactor enabled PTT-augmented DSF-based chemotherapy and FePtMn-based CDT for cancer nanotherapy.

MeSH terms

  • Antineoplastic Agents* / chemistry
  • Antineoplastic Agents* / pharmacology
  • Antineoplastic Agents* / therapeutic use
  • Cell Line, Tumor
  • Copper / chemistry
  • Copper / pharmacology
  • Disulfiram / pharmacology
  • Humans
  • Hyaluronoglucosaminidase
  • Hydrogen Peroxide
  • Nanotechnology
  • Neoplasms* / drug therapy
  • Sulfides
  • Tumor Microenvironment

Substances

  • Antineoplastic Agents
  • Sulfides
  • Copper
  • Hydrogen Peroxide
  • Hyaluronoglucosaminidase
  • Disulfiram