PNA-ATP aptamer-capped doxorubicin-loaded silica nanoparticles for targeted cancer therapy

Nanomedicine. 2022 Sep:45:102588. doi: 10.1016/j.nano.2022.102588. Epub 2022 Jul 26.

Abstract

Nanomaterial-based drug delivery has opened new horizons in cancer therapy. This study aimed to investigate the in vitro and in vivo anti-cancer effects of a hyaluronic acid (HA)-targeted nanocarrier based on hollow silica nanoparticles (HSNPs), gated with peptide nucleic acid (PNA) and ATP aptamer (ATPApt) and loaded with doxorubicin (DOX). After formulation of a smart drug delivery nanosystem (HSNPs/DOX/ATPApt/PNA/HA), drug release, cytotoxicity, uptake, and in vivo anti-tumor properties were studied. Drug release test showed the controlled release of encapsulated DOX in response to ATP content. MTT and flow cytometry indicated that HA could improve both cytotoxicity and cellular uptake of the formulation. Moreover, HA-targeted formulation enhanced both the survival rate and tumor inhibition in the tumor-bearing mice compared with free DOX (P < 0.05). Our findings confirmed that HA-targeted nanoformulation, gated with PNA/aptamer and loaded with DOX can provide a novel therapeutic platform with great potential for cancer therapy.

Keywords: Aptamer; Doxorubicin; Drug delivery; Hyaluronic acid; Silica nanoparticle.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenosine Triphosphate / pharmacology
  • Animals
  • Delayed-Action Preparations / pharmacology
  • Dimaprit / analogs & derivatives
  • Doxorubicin / pharmacology
  • Doxorubicin / therapeutic use
  • Drug Delivery Systems
  • Drug Liberation
  • Hyaluronic Acid / chemistry
  • Mice
  • Nanoparticles* / chemistry
  • Neoplasms* / drug therapy
  • Peptide Nucleic Acids*
  • Silicon Dioxide / chemistry

Substances

  • Delayed-Action Preparations
  • Peptide Nucleic Acids
  • APT
  • Silicon Dioxide
  • Doxorubicin
  • Adenosine Triphosphate
  • Hyaluronic Acid
  • Dimaprit