In vitro cell response to Co-containing 1,393 bioactive glass.
Cobalt ions are known to stimulate angiogenesis via inducing hypoxic conditions and hence are interesting agents to be used in conjunction with bioactive glasses (BGs) in bone tissue engineering approaches. In this work we investigated in vitro cell biocompatibility of Co releasing 1393 BG composition (in wt.%: 53SiO2, 6Na2O, 12K2O, 5MgO, 20CaO, and 4P2O5) derived scaffolds with osteoblast-like cells (MG-63) and human dermal microvascular endothelial cells (hDMECs). Cell viability, cell number and cell morphology of osteoblast-like cells in contact with particulate glass and 3D scaffolds were assessed showing good biocompatibility of 1393 reference material and with 1 wt.% CoO addition whereby 5 wt.% of CoO in the glass showed cytotoxicity. Furthermore for 1393 with 1 wt.% of CoO increased mitochondrial activity was measured. Similar observations were made with hDMECs: while 1393 and 1393 with 1 wt.% CoO were biocompatible and the endothelial phenotype was retained, 5 wt.% CoO containing BG showed cytotoxic effects after 1 week of cell culture. In conclusion, 1 wt.% Co containing BG was biocompatible with osteoblast like cells and endothelial cells and showed slightly stimulating effects on osteoblast-like cells whereas the addition of 5 wt.% CoO seems to exceed the vital therapeutic ranges of Co ions being released in physiological fluids.
Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany. Electronic address: alexander.hoppe@matthey.com.
Alexander
A
Hoppe
Department of Plastic and Hand Surgery, Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich Alexander University Erlangen-Nuernberg FAU, Krankenhausstrasse 12, 91054 Erlangen, Germany.
Andreas
A
Brandl
Department of Plastic and Hand Surgery, Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich Alexander University Erlangen-Nuernberg FAU, Krankenhausstrasse 12, 91054 Erlangen, Germany.
Oliver
O
Bleiziffer
Department of Plastic and Hand Surgery, Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich Alexander University Erlangen-Nuernberg FAU, Krankenhausstrasse 12, 91054 Erlangen, Germany.
Andreas
A
Arkudas
Department of Plastic and Hand Surgery, Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich Alexander University Erlangen-Nuernberg FAU, Krankenhausstrasse 12, 91054 Erlangen, Germany.
Raymund E
RE
Horch
Faculty of Technology and Metallurgy, University of Belgrade, Karnegijava 4, 11000 Belgrade, Serbia.
Bojan
B
Jokic
Faculty of Technology and Metallurgy, University of Belgrade, Karnegijava 4, 11000 Belgrade, Serbia.
Djordje
D
Janackovic
Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany. Electronic address: aldo.boccaccini@ww.uni-erlangen.de.
Aldo R
AR
Boccaccini
D018786:Bone Substitutes / Q000737:chemistry*; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D003035:Cobalt / Q000737:chemistry* / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D042783:Endothelial Cells / Q000187:drug effects*; D005898:Glass / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D010006:Osteoblasts / Q000187:drug effects*; D010087:Oxides / Q000737:chemistry* / Q000633:toxicity*
C553965:13-93 bioactive glass; D018786:Bone Substitutes; D010087:Oxides; D003035:Cobalt; C060728:cobalt oxide
Angiogenesis; Bioactive glass; Cobalt; Endothelial cells