Immunostimulatory cytokine and doxorubicin co-loaded nanovesicles for cancer immunochemotherapy

Nanomedicine. 2019 Jun:18:66-77. doi: 10.1016/j.nano.2019.02.008. Epub 2019 Mar 2.

Abstract

Taking advantages of drug delivery system, immunostimulatory and chemotherapeutic agents with different physiochemical properties can be co-delivered to realize synergistic antitumor effect. Here the immunostimulatory cytokine interleukin-2 (IL-2) was firstly adsorbed in doxorubicin (DOX) loaded nanovesicles (NV-DOXIL-2) with high encapsulation efficiency by a facile solvent free method. After intravenous injection to melanoma bearing mice, NV-DOXIL-2 can accumulate in tumor and remarkably suppress tumor growth with negligible systemic toxicity. To extend the comprehensive application of this strategy, interferon-γ (IFN-γ) was further introduced to the combinatorial system to develop cytokine cocktails adsorbed NVs. This kind of NVs can significantly inhibit the primary tumor growth and lung metastasis of triple-negative breast cancer. With exploration of underlying mechanism, the cytokine cocktails adsorbed NVs can facilitate maturation of dendritic cells, promote the infiltration and activation of CD8+ T lymphocytes and natural killer cells, and increase the recruitment of CD45+ immune cells and Ly6G+ neutrophils.

Keywords: Cancer; Combinational therapy; Cytokine; Immunochemotherapy; Nanovesicles.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Line, Tumor
  • Cytokines / pharmacology
  • Cytokines / therapeutic use*
  • Doxorubicin / pharmacology
  • Doxorubicin / therapeutic use*
  • Drug Compounding
  • Immunotherapy*
  • Interferon-gamma / pharmacology
  • Interferon-gamma / therapeutic use
  • Interleukin-2 / pharmacology
  • Interleukin-2 / therapeutic use
  • Lung Neoplasms / secondary
  • Mice
  • Nanoparticles / chemistry*
  • Nanoparticles / ultrastructure
  • Neoplasms / drug therapy
  • Neoplasms / immunology*
  • Neoplasms / therapy*

Substances

  • Cytokines
  • Interleukin-2
  • Doxorubicin
  • Interferon-gamma