Mohan, Saktiswaren and Karunanithi, Puvanan and Murali, Malliga Raman and Ayob, Khairul Anwar and Megala, Jayaraman and Genasan, Krishnamurithy and Kamarul, Tunku and Raghavendran, Hanumantha Rao Balaji (2022) Potential use of 3D CORAGRAF-loaded PDGF-BB in PLGA microsphere seeded mesenchymal stromal cells in enhancing the repair of calvaria critical-size bone defect in rat model. Marine Drugs, 20 (9). ISSN 1660-3397, DOI https://doi.org/10.3390/md20090561.
Full text not available from this repository.Abstract
Our previous study evidenced that the 3D CORAGRAF loaded with PLGA microsphere constitutes PDGF-BB can support cell attachment and proliferation and can induce an osteogenic commitment of mesenchymal stromal cells in the in vitro condition. However, how this construct can perform in pathophysiological conditions in terms of repairing critical bone defects is yet to be understood. A study was therefore conducted to investigate the regeneration potential of calvaria critical-size defects using CORAGRAF + PLGA with PDGF-BB + mesenchymal stromal cells (MSCs) in a rat model. A 5 mm critical bone defect was created on calvaria of 40 male Sprague-Dawley rats. CORAGRAF incorporated either with or without PDGF-BB and seeded with rat bone-marrow-derived MSCs was implanted at the defect region. The bone regeneration potential of implanted constructs was assessed using micro-CT imaging and histological staining in weeks 4 and 8. The micro-CT images indicated a significant closure of defects in the cranial bone of the rats treated with 3D CORAGRAF + PLGA with PDGF-BB + MSCs on week 4 and 8 post-implantation. This finding, further supported with the histology outcome where the rat cranial defect treated with CORAGRAF + PLGA with PDGF-BB + MSCs indicated neo-bony ingrowth with organized and mature bone-like morphology as compared with other groups. The previous in vitro results substantiated with our pre-clinical findings demonstrate that the combination of CORAGRAF + PLGA with PDGF-BB + MSCs could be an ideal construct to support bone regeneration in critical bone defects. Hence, this construct can be further investigated for its safety and efficacy in large animal models, or it can be skipped to human trial prior for commercialization.
| Item Type: | Article |
|---|---|
| Funders: | Science and Technology Development Fund (STDF) Ministry of Higher Education & Scientific Research (MHESR) [FRGS/1/2020/SKK0/UM/03/2] |
| Uncontrolled Keywords: | Coral; Calvaria; Platelet-derived growth factor; Microsphere; Micro-CT; Histology |
| Subjects: | R Medicine |
| Divisions: | Faculty of Medicine |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 19 Sep 2023 01:52 |
| Last Modified: | 19 Sep 2023 01:52 |
| URI: | http://eprints.um.edu.my/id/eprint/41319 |
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