Periodontal Ligament Stem Cells: Current Knowledge and Future Perspectives

Teeth represent a fascinating area of study in regenerative medicine, because of their unique and complex developmental origin. Several types of mesenchymal stem cells (MSCs) have been characterized in the oral cavity, and those derived from the periodontal ligament (PDL) first isolated by our group...

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Published inStem cells and development Vol. 28; no. 15; p. 995
Main Authors Trubiani, Oriana, Pizzicannella, Jacopo, Caputi, Sergio, Marchisio, Marco, Mazzon, Emanuela, Paganelli, Roberto, Paganelli, Alessia, Diomede, Francesca
Format Journal Article
LanguageEnglish
Published United States 01.08.2019
Subjects
EAE
stem cells
periodontal ligament
MSCs
inflammation
regenerative medicine
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Summary:Teeth represent a fascinating area of study in regenerative medicine, because of their unique and complex developmental origin. Several types of mesenchymal stem cells (MSCs) have been characterized in the oral cavity, and those derived from the periodontal ligament (PDL) first isolated by our group in 2005, can be expanded in a xeno-free medium preserving morphological features and markers associated with pluripotency. These postnatal MSCs can be easily recovered by noninvasive procedures and cultured. This could facilitate the use of adult stem cells in human clinical regeneration therapy. In this review we summarize the results of our studies describing morphofunctional features, surface markers, and multilineage differentiation capacity in vitro of PDL MSCs obtained in our laboratories. In vivo characterization of PDL stem cell (PDLSC) location and heterogeneity are still lacking. However, we describe studies exploring the potential use of PDLSC to treat both periodontal diseases and regeneration of other tissues. These MSCs may have an advantage in possessing also angiogenetic, immunoregulatory, and anti-inflammatory properties. The secretome of such cells contains several interesting molecules mimicking the effects of the producer cells. We describe some recent studies from our group on the use of conditioned medium from PDL MSCs, and purified extracellular vesicles therein contained, in animal models of experimental autoimmune encephalomyelitis and their potential application to human disease.
ISSN:1557-8534
DOI:10.1089/scd.2019.0025