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Open AccessArticle

Evaluation of Poly(Lactic-co-glycolic) Acid Alone or in Combination with Hydroxyapatite on Human-Periosteal Cells Bone Differentiation and in Sinus Lift Treatment

1
Department of Public Health, Experimental Medicine and Forensic, Human Anatomy Unit, University of Pavia, 27100 Pavia, Italy
2
Center for Health Technologies, University of Pavia, 27100 Pavia, Italy
3
Department of Clinico-Surgical, Diagnostic and Pediatric Sciences, School of Dentistry, University of Pavia, P.le Golgi 2, 27100 Pavia, Italy
4
Department of Development and Regeneration, Laboratory of Translational Cardiomyology, KU Leuven, B-3000 Leuven, Belgium
5
Molecular Medicine Department (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Viale Taramelli 3/B, 27100 Pavia, Italy
6
Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri S.p.A, IRCCS, Via S. Boezio 28, 27100 Pavia, Italy
*
Author to whom correspondence should be addressed.
Molecules 2017, 22(12), 2109; https://doi.org/10.3390/molecules22122109
Received: 6 October 2017 / Revised: 27 November 2017 / Accepted: 27 November 2017 / Published: 2 December 2017
(This article belongs to the Special Issue Biomedical Applications of Polylactide (PLA) and its Copolymers)
Most recent advances in tissue engineering in the fields of oral surgery and dentistry have aimed to restore hard and soft tissues. Further improvement of these therapies may involve more biological approaches and the use of dental tissue stem cells in combination with inorganic/organic scaffolds. In this study, we analyzed the osteoconductivity of two different inorganic scaffolds based on poly (lactic-co-glycolic) acid alone (PLGA-Fisiograft) or in combination with hydroxyapatite (PLGA/HA-Alos) in comparison with an organic material based on equine collagen (PARASORB Sombrero) both in vitro and in vivo. We developed a simple in vitro model in which periosteum-derived stem cells were grown in contact with chips of these scaffolds to mimic bone mineralization. The viability of cells and material osteoconductivity were evaluated by osteogenic gene expression and histological analyses at different time points. In addition, the capacity of scaffolds to improve bone healing in sinus lift was examined. Our results demonstrated that the osteoconductivity of PLGA/HA-Alos and the efficacy of scaffolds in promoting bone healing in the sinus lift were increased. Thus, new clinical approaches in sinus lift follow-up should be considered to elucidate the clinical potential of these two PLGA-based materials in dentistry. View Full-Text
Keywords: tissue engineering; periosteum-derived stem cells; poly(lactic-co-glycolic) acid-based materials; osteoconductivity tissue engineering; periosteum-derived stem cells; poly(lactic-co-glycolic) acid-based materials; osteoconductivity
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Ceccarelli, G.; Presta, R.; Lupi, S.M.; Giarratana, N.; Bloise, N.; Benedetti, L.; Cusella De Angelis, M.G.; Rodriguez y Baena, R. Evaluation of Poly(Lactic-co-glycolic) Acid Alone or in Combination with Hydroxyapatite on Human-Periosteal Cells Bone Differentiation and in Sinus Lift Treatment. Molecules 2017, 22, 2109.

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