Abstract
Platelet-rich plasma (PRP) is widely used to promote tissue repair and accelerate osteogenesis, but there is no agreement about its mechanism of action. We characterized the modulatory effect of PRP on the in vitro osteoblast model SaOS-2, by using cell motility/chemoattraction and osteogenesis/mineralization assays, and a series of osteogenic/ osteoclastogenic genomic markers. Scratch wound assay showed that PRP stimulates cell motility, while transwell assay revealed a strong chemoattraction. Alkaline phosphatase (ALP) and alizarin red-S assays showed that PRP induces slight, but significant, stimulations of ALP activity and mineralization. The TGF-β inhibitor SB431542 reversed these effects, showing a main role for TGF-β1 released by PRP. Analyses of gene expression by qRT-PCR, showed the upregulation of osteocalcin, osteopontin, osteoprotegerin, receptor activator of NFκB (RANK), and runt-related transcription factor 2 (RUNX2) genes, with a total reversion by SB431542 for osteoprotegerin and RANK, and a partial reversion for ostecalcin, osteopontin, and RUNX2. The use of PCR array technique revealed the upregulation of the cathepsin K gene. These data show that PRP induces the development of mixed osteogenic/osteoclastogenic traits in the SaOS-2 model. Such a behavior may favour in vivo bone resorption and reconstitution at post-surgery or post-traumatic sites.
Keywords: Bone resorption, osteogenesis, PRP, qPCR, SaOS-2, TGF-β1.
Current Pharmaceutical Biotechnology
Title:Platelet-Rich Plasma Induces Mixed Osteogenic/Osteoclastogenic Phenotype in Osteosarcoma SaOS-2 Cells: Role of TGF-Beta
Volume: 15 Issue: 2
Author(s): Simona Martinotti, Laura Mazzucco, Valeria Balbo, Mauro Patrone, Marco Mozzati, Elia Ranzato and Bruno Burlando
Affiliation:
Keywords: Bone resorption, osteogenesis, PRP, qPCR, SaOS-2, TGF-β1.
Abstract: Platelet-rich plasma (PRP) is widely used to promote tissue repair and accelerate osteogenesis, but there is no agreement about its mechanism of action. We characterized the modulatory effect of PRP on the in vitro osteoblast model SaOS-2, by using cell motility/chemoattraction and osteogenesis/mineralization assays, and a series of osteogenic/ osteoclastogenic genomic markers. Scratch wound assay showed that PRP stimulates cell motility, while transwell assay revealed a strong chemoattraction. Alkaline phosphatase (ALP) and alizarin red-S assays showed that PRP induces slight, but significant, stimulations of ALP activity and mineralization. The TGF-β inhibitor SB431542 reversed these effects, showing a main role for TGF-β1 released by PRP. Analyses of gene expression by qRT-PCR, showed the upregulation of osteocalcin, osteopontin, osteoprotegerin, receptor activator of NFκB (RANK), and runt-related transcription factor 2 (RUNX2) genes, with a total reversion by SB431542 for osteoprotegerin and RANK, and a partial reversion for ostecalcin, osteopontin, and RUNX2. The use of PCR array technique revealed the upregulation of the cathepsin K gene. These data show that PRP induces the development of mixed osteogenic/osteoclastogenic traits in the SaOS-2 model. Such a behavior may favour in vivo bone resorption and reconstitution at post-surgery or post-traumatic sites.
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Cite this article as:
Martinotti Simona, Mazzucco Laura, Balbo Valeria, Patrone Mauro, Mozzati Marco, Ranzato Elia and Burlando Bruno, Platelet-Rich Plasma Induces Mixed Osteogenic/Osteoclastogenic Phenotype in Osteosarcoma SaOS-2 Cells: Role of TGF-Beta, Current Pharmaceutical Biotechnology 2014; 15 (2) . https://dx.doi.org/10.2174/1389201015666140604121407
DOI https://dx.doi.org/10.2174/1389201015666140604121407 |
Print ISSN 1389-2010 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4316 |
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