Issue 22, 2017

Gum tragacanth–alginate beads as proangiogenic–osteogenic cell encapsulation systems for bone tissue engineering

Abstract

There is a dearth of biologically active matrices for the encapsulation of bone cells. Here, we hypothesize that the use of gum tragacanth (GT) with alginate might improve the biological properties of calcium alginate (CA) beads, a common cell encapsulation system. We show that the incorporation of GT in the bead-composition significantly improves the molecular transport, swelling and degradation properties of the CA bead. Although no significant molecular interaction between GT and CA was found, a decrease in the concentration of calcium with an increase in GT concentration was noticed. We show that the presence of GT in the bead-composition resulted in improved viability, proliferation, and differentiation of encapsulated bone cells. We further demonstrate that bone cell loaded CA–GT beads are capable of inducing angiogenesis. In conclusion, we prove that CA–GT beads are more osteo-conductive and proangiogenic in comparison to pure CA beads.

Graphical abstract: Gum tragacanth–alginate beads as proangiogenic–osteogenic cell encapsulation systems for bone tissue engineering

Supplementary files

Article information

Article type
Paper
Submitted
09 Feb 2017
Accepted
23 Apr 2017
First published
24 Apr 2017

J. Mater. Chem. B, 2017,5, 4177-4189

Gum tragacanth–alginate beads as proangiogenic–osteogenic cell encapsulation systems for bone tissue engineering

S. Kulanthaivel, S. Rathnam V. S., T. Agarwal, S. Pradhan, K. Pal, S. Giri, T. K. Maiti and I. Banerjee, J. Mater. Chem. B, 2017, 5, 4177 DOI: 10.1039/C7TB00390K

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