Issue 21, 2023

In vivo and In vitro properties evaluation of curcumin loaded MgO doped 3D printed TCP scaffolds

Abstract

The lack of site-specific chemotherapeutic agents to treat bone malignancy throws a significant challenge in the design of a delivery vehicle. The major scientific question posed in this study is, can we utilize curcumin-loaded magnesium oxide (MgO) doped 3D printed tricalcium phosphate (TCP) bone grafts as a localized delivery system that improves early stage in vivo osseointegration and in vitro chemoprevention, antibacterial properties? We have utilized curcumin as an alternative natural chemopreventive agent for bone cancer-specific delivery after direct incorporation on the 3D printed tricalcium phosphate (TCP) bone grafts. The addition of MgO as a dopant to TCP leads to ∼1.3 times enhancement in compressive strength. The designed drug delivery system shows up to ∼22% curcumin release in a physiological pH of 7.4 after 30 days. The presence of curcumin leads to up to ∼8.5 times reduction in osteosarcoma viability. In vitro results indicate that these scaffolds significantly enhance bone-forming osteoblast cells while reducing the bone-resorbing osteoclast cells. The in vivo rat distal femur model surgery followed by histological assessment with H&E, vWF, and Movat pentachrome staining results show that the designed scaffolds lead to new bone formation (up to ∼2.5 times higher than the control) after successful implantation. The presence of MgO and curcumin results in up to ∼71% antibacterial efficacy against osteomyelitis causing S. aureus. These 3D printed osteogenic and chemopreventive scaffolds can be utilized in patient-specific low load-bearing defect sites.

Graphical abstract: In vivo and In vitro properties evaluation of curcumin loaded MgO doped 3D printed TCP scaffolds

Supplementary files

Article information

Article type
Paper
Submitted
21 Nov. 2022
Accepted
15 Apr. 2023
First published
19 Apr. 2023

J. Mater. Chem. B, 2023,11, 4725-4739

In vivo and In vitro properties evaluation of curcumin loaded MgO doped 3D printed TCP scaffolds

A. Bhattacharjee, Y. Jo and S. Bose, J. Mater. Chem. B, 2023, 11, 4725 DOI: 10.1039/D2TB02547G

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