Abstract:
BACKGROUND AIMS:Periodontal tissue regeneration with the use of mesenchymal stromal cells (MSCs) has been regarded as a future cell-based therapy. However, low survival rates and the potential tumorigenicity of implanted MSCs could undermine the efficacy of cell-based therapy. The use of conditioned media from MSCs (MSC-CM) may be a feasible approach to overcome these limitations. The aim of this study was to confirm the effect of MSC-CM on periodontal regeneration. METHODS:MSC-CM were collected during their cultivation. The concentrations of the growth factors in MSC-CM were measured with the use of enzyme-linked immunoassay. Rat MSCs (rMSCs) and human umbilical vein endothelial cells cultured in MSC-CM were assessed on wound-healing and angiogenesis. The expressions of osteogenetic- and angiogenic-related genes of rMSCs cultured in MSC-CM were quantified by means of real-time reverse transcriptase-polymerase chain reaction analysis. In vivo, periodontal defects were prepared in the rat models and the collagen sponges with MSC-CM were implanted. RESULTS:MSC-CM includes insulin-like growth factor-1, vascular endothelial growth factor, transforming growth factor-β1 and hepatocyte growth factor. In vitro, wound-healing and angiogenesis increased significantly in MSC-CM. The levels of expression of osteogenetic- and angiogenic-related genes were significantly upregulated in rMSCs cultured with MSC-CM. In vivo, in the MSC-CM group, 2 weeks after implantation, immunohistochemical analysis showed several CD31-, CD105-or FLK-1-positive cells occurring frequently. At 4 weeks after implantation, regenerated periodontal tissue was observed in MSC-CM groups. CONCLUSIONS:The use of MSC-CM may be an alternative therapy for periodontal tissue regeneration because several cytokines included in MSC-CM will contribute to many processes of complicated periodontal tissue regeneration.
journal_name
Cytotherapyjournal_title
Cytotherapyauthors
Kawai T,Katagiri W,Osugi M,Sugimura Y,Hibi H,Ueda Mdoi
10.1016/j.jcyt.2014.11.009subject
Has Abstractpub_date
2015-04-01 00:00:00pages
369-81issue
4eissn
1465-3249issn
1477-2566pii
S1465-3249(14)00880-9journal_volume
17pub_type
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