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Articles

Comparison of platelet-rich plasma, bovine BMP, and rhBMP-4 on bone matrix protein expression in vitro

, , , , , , , , & show all
Pages 280-288 | Received 27 Jul 2008, Accepted 22 Jun 2009, Published online: 15 Sep 2009
 

Abstract

This study investigated the potential use of platelet-rich plasma (PRP) in conjunction with mRNA expression of bone matrix proteins using bioassay and RT-PCR comparing bovine bone morphogenetic proteins (BMP), recombinant human BMP-4 (rhBMP-4) during rat bone marrow stromal cell (Mesenchymal Stem Cell) differentiation at 14 days. The results showed that all three growth factors were associated with significantly elevated alkaline phosphatase activity. PRP and bovine BMP resulted in increased protein content. The mRNA of type I collagen was expressed with all three growth factors and remained consistently elevated. Osteopontin was observed with PRP from days 1 to 7; bone sialoprotein expression was detected on days 1 and 3. PRP, bovine BMP and rhBMP-4 enhanced the steady-state expression of PDGF-A as time-dependent to day 14 and in PRP was the strongest. PTHr was expressed at days 1 and 5. Vascular endothelial growth factor expression was the most highly expressed after day 3. These findings suggest that PRP increases mRNA expression of bone matrix protein, enchances osteogenesis and angiogenesis in vitro.

Abbreviations
PRP=

platelet-rich plasma

PGFs=

polypeptide growth factors

TGF-β1=

transforming growth factor-β1

rhBMP-4=

recombinant human BMP-4

ALP=

alkaline phosphatase

VEGF=

vascular endothelial growth factor

OPN=

osteopontin

BSP=

bone sialoprotein

PTHr=

parathyroid hormone receptor

MSCs=

bone marrow stromal cells

Abbreviations
PRP=

platelet-rich plasma

PGFs=

polypeptide growth factors

TGF-β1=

transforming growth factor-β1

rhBMP-4=

recombinant human BMP-4

ALP=

alkaline phosphatase

VEGF=

vascular endothelial growth factor

OPN=

osteopontin

BSP=

bone sialoprotein

PTHr=

parathyroid hormone receptor

MSCs=

bone marrow stromal cells

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