Clindamycin phosphate and bone morphogenetic protein-7 loaded combined nanoparticle-graft and nanoparticle-film formulations for alveolar bone regeneration – An in vitro and in vivo evaluation

[Display omitted] Commonly utilized techniques for healing alveolar bone destruction such as the use of growth factors, suffering from short half-life, application difficulties, and the ability to achieve bioactivity only in the presence of high doses of growth factor. The sustained release of growt...

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Bibliographic Details
Published in:International journal of pharmaceutics 2023-04, Vol.636, p.122826-122826, Article 122826
Main Authors: Ilhan, Miray, Kilicarslan, Muge, Alcigir, Mehmet Eray, Bagis, Nilsun, Ekim, Okan, Orhan, Kaan
Format: Article
Language:English
Subjects:
Bone morphogenetic protein
Bone Morphogenetic Protein 2
Bone Morphogenetic Protein 7 - pharmacology
Bone Regeneration
Clindamycin phosphate
Delayed-Action Preparations - pharmacology
Graft
Nanoparticle
Nanoparticles
Osteogenesis
Polyelectrolyte complex film
Tissue Scaffolds
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Summary:[Display omitted] Commonly utilized techniques for healing alveolar bone destruction such as the use of growth factors, suffering from short half-life, application difficulties, and the ability to achieve bioactivity only in the presence of high doses of growth factor. The sustained release of growth factors through a scaffold-based delivery system offers a promising and innovative tool in dentistry. Furthermore, it is suggested to guide the host response by using antimicrobials together with growth factors to prevent recovery and achieve ideal regeneration. Herein, the aim was to prepare and an in vitro - in vivo evaluation of bone morphogenetic protein 7 (BMP-7) and clindamycin phosphate (CDP) loaded polymeric nanoparticles, and their loading into the alginate-chitosan polyelectrolyte complex film or alloplastic graft to accelerate hard tissue regeneration. PLGA nanoparticles containing CDP and BMP-7, separately or together, were prepared using the double emulsion solvent evaporation technique. Through in vitro assays, it was revealed that spherical particles were homogeneously distributed in the combination formulations, and sustained release could be achieved for >12 weeks with all formulations. Also, results from the micro-CT and histopathological analyses indicated that CDP and BMP-7 loaded nanoparticle-film formulations were more effective in treatment than the nanoparticle loaded grafts.
ISSN:0378-5173
1873-3476
DOI:10.1016/j.ijpharm.2023.122826