ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
Bone grafts have been used to fill bone defects caused by disease or trauma. The amount ofautografts is limited and allogenic bone grafts may transmit diseases and cause immune responses.Numerous materials have been proposed and used as scaffolds for bone tissue reconstruction. In thisstudy, we tested nanophase PLGA/HA composite with mesenchymal stem cells in vitro to examineits biological response and cellular activity. The nanophase composite was compared toconventional polystyrene on cytocompatibility by cell attachment, proliferation, alkalinephosphotase activity test and scanning electron microscopy (SEM) analysis. The resultsdemonstrated that human mesenchymal cells showed more cell attachment and higher cellproliferation rate when growing on nanophase PLGA/HA composite than those growing onpolystyrene alone. And the composite also promoted MSC cells differentiate to osteoblast cells ascompared with control. It was suggested that the combination of bone marrow mesenchymal cellswith artificial materials or differentiation factors may enhance bone formation and regeneration,nanophase PLGA/HA composite might therefore be a promising scaffold material for bone tissuesubstitute in clinical application
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.1153.pdf
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