Effect of Fluoride Doping in Laponite Nanoplatelets on Osteogenic Differentiation of Human Dental Follicle Stem Cells (hDFSCs)

Sci Rep. 2019 Jan 29;9(1):915. doi: 10.1038/s41598-018-37327-7.

Abstract

Bioactive nanosilicates are emerging prominent next generation biomaterials due to their intrinsic functional properties such as advanced biochemical and biophysical cues. Recent studies show interesting dose-dependent effect of fluoride ions on the stem cells. Despite of interesting properties of fluoride ions as well as nanosilicate, there is no reported literature on the effect of fluoride-doped nanosilicates on stem cells. We have systematically evaluated the interaction of fluoride nanosilicate platelets (NS + F) with human dental follicle stem cells (hDFSCs) to probe the cytotoxicity, cellular transport (internalization) and osteogenic differentiation capabilities in comparison with already reported nanosilicate platelets without fluoride (NS - F). To understand the osteoinductive and osteoconductive properties of the nanosilicate system, nanosilicate treated hDFSCs are cultured in three different medium namely normal growth medium, osteoconductive medium, and osteoinductive medium up to 21 d. NS + F treated stem cells show higher ALP activity, osteopontin levels and significant alizarin red staining compared to NS - F treated cells. This study highlights that the particles having fluoride additives (NS + F) aid in enhancing the osteogenic differentiation capabilities of hDFSCs thus potential nanobiomaterial for periodontal bone tissue regeneration.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaline Phosphatase / biosynthesis
  • Biocompatible Materials / chemistry
  • Biomarkers
  • Cell Differentiation / drug effects*
  • Cell Proliferation
  • Cells, Cultured
  • Dental Sac / cytology*
  • Fluorescent Antibody Technique
  • Fluorides / chemistry
  • Fluorides / pharmacology*
  • Humans
  • Immunohistochemistry
  • Nanoparticles / chemistry
  • Nanoparticles / ultrastructure
  • Osteogenesis / drug effects*
  • Osteopontin / genetics
  • Osteopontin / metabolism
  • Silicates / chemistry
  • Spectrum Analysis
  • Stem Cells / cytology*
  • Stem Cells / drug effects*
  • Stem Cells / metabolism

Substances

  • Biocompatible Materials
  • Biomarkers
  • Silicates
  • Osteopontin
  • laponite
  • Alkaline Phosphatase
  • Fluorides