title: Bio-Oss®acts on Stem cells derived from Peripheral Blood.
abstract: OBJECTIVE
  This study aims to study how Bio-Oss® can induce osteoblast differentiation in mesenchymal stem cells, the expression levels of bone related genes and mesenchymal stem cells markers using real time Reverse Transcription-Polymerase Chain Reaction.
  
  
  METHODS
  PB-hMSCs stem preparations were obtained for gradient centrifugation from peripheral blood of healthy anonymous volunteers, using the Acuspin System-Histopaque 1077. The samples were then cultured for 7 days for RNA processing, and the expression was quantified using real time PCR.
  
  
  RESULTS
  Bio-Oss® caused an induction of osteoblast transcriptional factor like RUNX2 and of bone related genes; SPP1 and FOSL1. In contrast, the expression of ENG was significantly decreased in stem cells treated with Bio-Oss® with respect to untreated cells, indicating the differentiation effect of this biomaterial on stem cells.
  
  
  CONCLUSIONS
  The results obtained can be relevant to enhance the understanding of the molecular mechanism of bone regeneration and can act as a model for comparing other materials with similar clinical effects.
authors: Vincenzo
authors: V
authors: Sollazzo
authors: Annalisa
authors: A
authors: Palmieri
authors: Luca
authors: L
authors: Scapoli
authors: Marcella
authors: M
authors: Martinelli
authors: Ambra
authors: A
authors: Girardi
authors: Francesco
authors: F
authors: Alviano
authors: Agnese
authors: A
authors: Pellati
authors: Vittoria
authors: V
authors: Perrotti
authors: Francesco
authors: F
authors: Carinci