When isolated from the iliac crest human mesenchymal stem cells (hMSC) differentiate into osteoblast-like cells with appropriate stimulation in culture. This in vitro study tested the hypothesis that Biostite_ and hydroxyapatite (HA) affect proliferation and differentiation of hMSC into osteoblastic cells. Cell proliferation was determined by measuring 3H-thymidine incorporation into DNA and typical markers of osteoblastic phenotype were determined by RT-PCR assay. No differences emerged in cell proliferation cultures with Biostite_ or hydroxyapatite (HA), but gene expression analysis revealed higher expression of collagen, alkaline phosphatase (ALP), osteopontin and bone sialoprotein (BSP) in the presence of Biostite_. TGFb2 production, as assessed by an Elisa kit, and Runx2 expression by RT-PCR, were greater in Biostite cultures, suggesting Biostite_ provides a better environment for hMSC differentiation into osteoblasts and is, potentially, a more promising bone-filling material than HA.

Effects of Hydroxyapatite and Biostite on Osteogenic Induction of hMSC

MARINUCCI, Lorella;BALLONI, Stefania;BECCHETTI, Ennio;BISTONI, GIOVANNI;LUMARE, ELEONORA;LOCCI, Paola
2010

Abstract

When isolated from the iliac crest human mesenchymal stem cells (hMSC) differentiate into osteoblast-like cells with appropriate stimulation in culture. This in vitro study tested the hypothesis that Biostite_ and hydroxyapatite (HA) affect proliferation and differentiation of hMSC into osteoblastic cells. Cell proliferation was determined by measuring 3H-thymidine incorporation into DNA and typical markers of osteoblastic phenotype were determined by RT-PCR assay. No differences emerged in cell proliferation cultures with Biostite_ or hydroxyapatite (HA), but gene expression analysis revealed higher expression of collagen, alkaline phosphatase (ALP), osteopontin and bone sialoprotein (BSP) in the presence of Biostite_. TGFb2 production, as assessed by an Elisa kit, and Runx2 expression by RT-PCR, were greater in Biostite cultures, suggesting Biostite_ provides a better environment for hMSC differentiation into osteoblasts and is, potentially, a more promising bone-filling material than HA.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11391/43354
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