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J Cell Physiol. 2018 Oct 26. doi: 10.1002/jcp.27472. [Epub ahead of print]

Dental pulp stem cells senescence and regenerative potential relationship.

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Department of Clinical and Molecular Sciences-DISCLIMO, Università Politecnica delle Marche, Ancona, Italy.
Department of Applied Science and Technology (DISAT), Polytechnic of Turin, Turin, Italy.


Uncomplicated treatments for pulpitis and periodontitis continues to be challenging and regenerative approaches could meet this contingency. Dental pulp stem cells (DPSCs) represent a good candidate for oral recovering therapies. Here, we investigated changes in morphology, proliferation, and in vitro differentiation toward mesenchymal and neuronal phenotypes of human DPSCs harvested from differently aged donors. Aging is a physiologic phenomenon occurring with time that hamper body's capability to maintain homeostasis also affecting the functional reserve. Cytofluorimetric, immunohistochemical, quantitative reverse-transcription polymerase chain reaction (qRT-PCR), and western blot analyses were performed to gain insight for successful regenerative strategies in elderly. We observed a decline in DPSCs proliferation and differentiation potential with age. Interestingly, these cells behaved differently under osteogenic or odontogenic stimuli, showing different age-related mineralization capabilities. Similarly, neurogenic differentiation decreased with age. In conclusion, our observations represent a valid tool for the development of tailored regenerative strategies in an aging society.


DMP1; DPSCs; SA-β-Gal; aging; nestin; p16ink4a


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