期刊
JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE
卷 12, 期 1, 页码 204-216出版社
WILEY
DOI: 10.1002/term.2397
关键词
human dental pulp stem cells; injectable microspheres; dental regeneration
类别
资金
- Spanish Plan Nacional de Investigacion Cientifica, Desarrollo e Innovacion Tecnologica (I + D + I) of the Spanish Ministry of Economy and Competitiveness (Instituto de Salud Carlos III) - Fondo Europeo de Desarrollo Regional (FEDER/ERDF) [FIS PI15/02048]
- European Union
- Fundacion Progreso y Salud, Consejeria de Salud, Junta de Andalucia, Spain [PI-0386-2014]
Regeneration of the pulp-dentin complex with stem cells is a potential alternative to conventional root canal treatments. Human dental pulp stem cells (hDPSCs) have been extensively studied because of their ability to proliferate and differentiate into mineralized dental and non-dental tissues. Here we combined hDPSCs with two types of injectable poly-l-lactic acid (PLLA) microsphere with a nanofibrous or smooth surface to form bioactive injectable aggregates, and examined their ability to promote pulp regeneration in the root canal in an in vivo model. We investigated the biocompatibility, biosafety and odontogenic potential of fibrous (F-BIM) and smooth bioactive injectable microspheres (S-BIM) in vitro and in vivo. Our results demonstrated that PLLA microspheres and hDPSCs were able to form bioactive injectable aggregates that promoted dentin regeneration in both in vitro and in vivo models. Our results suggest that F-BIM and S-BIM may induce dentinogenesis upon in vivo grafting, and propose that the potential usefulness of the microsphere-hDPSC aggregates described here should be evaluated in clinical settings. Copyright (C) 2017 John Wiley & Sons, Ltd.
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