Biodegradable mesoporous manganese carbonate nanocomposites for LED light-driven cancer therapy via enhancing photodynamic therapy and attenuating survivin expression

J Nanobiotechnology. 2021 Oct 9;19(1):310. doi: 10.1186/s12951-021-01057-2.

Abstract

Triple-negative breast cancer (TNBC) is one of the most daunting diseases, low toxicity and efficient approaches are in urgent demand. Herein, we developed degradable mesoporous manganese carbonate nanocubes (MnCO3 NCs), incorporated with survivin shRNA-expressing plasmid DNA (iSur-pDNA) and riboflavin (Rf), namely MRp NCs, for synergistic TNBC therapy. The MnCO3, itself, could generate O2 and CO2 under H2O2 and thus relieve the hypoxia and acidic tumor microenvironment (TME). Furthermore, the MnCO3 NCs exhibited high Rf loading capacity and iSur-pDNA delivery ability after polyethyleneimine modification. Specifically, MRp NCs decompose in TME, meanwhile they deprived the endogenous expression of survivin gene and significantly amplified the generation of reactive oxygen species after exposure to LED light, resulting in serious tumor destruction. The multifunctional MRp NCs with LED light-driven characters are able to provide a high efficiency, low toxicity and promising strategy for TNBC therapy.

Keywords: LED light responsive; Mesoporous MnCO3 nanocubes; O2 and CO2 release; Reactive oxygen species; Triple negative breast cancer.

MeSH terms

  • Animals
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology
  • Carbonates* / chemistry
  • Carbonates* / pharmacology
  • Cell Line, Tumor
  • Cell Survival / drug effects
  • Female
  • Manganese* / chemistry
  • Manganese* / pharmacology
  • Mice
  • Mice, Nude
  • Nanocomposites* / chemistry
  • Nanocomposites* / toxicity
  • Photochemotherapy*
  • Photosensitizing Agents / chemistry
  • Photosensitizing Agents / pharmacology
  • Reactive Oxygen Species / metabolism
  • Survivin* / genetics
  • Survivin* / metabolism
  • Triple Negative Breast Neoplasms* / metabolism
  • Triple Negative Breast Neoplasms* / pathology
  • Tumor Microenvironment / drug effects

Substances

  • Antineoplastic Agents
  • Carbonates
  • Photosensitizing Agents
  • Reactive Oxygen Species
  • Survivin
  • Manganese
  • manganese carbonate