Effect of ion release from Cu-doped 45S5 Bioglass® on 3D endothelial cell morphogenesis

Journal article
(Original article)


Publication Details

Author(s): Staehli C, James-Bhasin M, Hoppe A, Boccaccini AR, Nazhat SN
Journal: Acta biomaterialia
Publisher: Elsevier
Publication year: 2015
Volume: 19
Pages range: 15-22
ISSN: 1878-7568


Abstract


Both silicate-based bioactive glasses and copper ions have demonstrated angiogenic activity and therefore represent promising bioinorganic agents for the promotion of vascularization in tissue-engineered scaffolds. This study examined the effect of ionic release products from 45S5 Bioglass® doped with 0 and 2.5 wt.% CuO (BG and Cu-BG respectively) on the formation of capillary-like networks by SVEC4-10 endothelial cells (ECs) seeded in a three-dimensional (3D) type I collagen matrix. Copper and silicon release following 24 h dissolution increased non-proportionally with Cu-BG concentration in cell culture medium, while calcium levels were decreased below the initial medium concentration. EC network length, connectivity, branching, quantified by means of a 3D morphometric image analysis method, as well as proliferation and metabolic activity were reduced in a dose-dependent fashion by BG and Cu-BG ionic release products. This reduction was less prominent for BG compared to an equivalent concentration of Cu-BG, which was attributed to a lower extent of silicon release and calcium consumption. Moreover, a CuCl2 dose equivalent to the highest concentration of Cu-BG exhibited no effect on ECs. In conclusion, while the previously reported pro-angiogenic activity of both Bioglass® and copper may not be reflected in a direct response of ECs, this study provides a maximum glass concentration for non-harmful angiogenic stimulation to be examined in future work.



FAU Authors / FAU Editors

Boccaccini, Aldo R. Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)
Hoppe, Alexander
Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)


External institutions with authors

McGill University


How to cite

APA:
Staehli, C., James-Bhasin, M., Hoppe, A., Boccaccini, A.R., & Nazhat, S.N. (2015). Effect of ion release from Cu-doped 45S5 Bioglass® on 3D endothelial cell morphogenesis. Acta biomaterialia, 19, 15-22. https://dx.doi.org/10.1016/j.actbio.2015.03.009

MLA:
Staehli, Christoph, et al. "Effect of ion release from Cu-doped 45S5 Bioglass® on 3D endothelial cell morphogenesis." Acta biomaterialia 19 (2015): 15-22.

BibTeX: 

Last updated on 2019-22-08 at 21:50