Improving the osteogenesis of rat mesenchymal stem cells by chitosan-based-microRNA nanoparticles

Carbohydr Polym. 2016 Mar 15:138:49-58. doi: 10.1016/j.carbpol.2015.11.044. Epub 2015 Nov 19.

Abstract

MicroRNAs (miRNAs) play important roles in the osteogenic differentiation of stem cells. However, the application of miRNA in bone regeneration has been limited by its poor stability, low cellular uptake, and undesired immune response. In this study, chitosan (CS)/tripolyphosphate (TPP)/Hyaluronic Acid (HA) nanoparticles (CTH NPs) were prepared to deliver antimiR-138 to bone marrow mesenchymal stem cells (MSCs). The particle size, polydispersity index, and zeta potential of CTH NPs were related to the weight ratio of CS:TPP:HA. At optimum N/P ratio (20:1), the highest encapsulation efficiency was obtained. Both blank CTH NPs and CTH/antmiR-138 NPs exhibited no cytotoxicity to MSCs. A high transfection efficiency (nearly 70%) and significant enhancement of the osteogenesis of MSCs were observed. Above results demonstrated that CTH NPs was a potential candidate as an efficient non-viral miRNA vector to regulate the osteogenic differentiation of MSCs.

Keywords: Chitosan; Chitosan (PubChem CID: 21896651); Hyaluronic acid (PubChem CID: 24728612); Mesenchymal stem cells; Nanoparticle; Osteogenic differentiation; microRNA.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antigens, CD / metabolism
  • Cell Differentiation / drug effects
  • Cell Survival / drug effects
  • Chitosan / chemistry*
  • Drug Carriers / chemistry*
  • Drug Carriers / toxicity
  • Hyaluronic Acid / chemistry
  • Mesenchymal Stem Cells / cytology*
  • Mesenchymal Stem Cells / metabolism
  • MicroRNAs / metabolism*
  • Microscopy, Fluorescence
  • Nanoparticles / chemistry*
  • Osteogenesis / drug effects
  • Particle Size
  • Polyphosphates / chemistry
  • Rats
  • Transfection

Substances

  • Antigens, CD
  • Drug Carriers
  • MicroRNAs
  • Polyphosphates
  • Hyaluronic Acid
  • Chitosan
  • triphosphoric acid