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Structure · collection · 2018

FGF2 Enhances Odontoblast Differentiation by αSMA + Progenitors In Vivo

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The goal of this study was to examine the effects of early and limited exposure of perivascular cells expressing α (αSMA) to fibroblast growth factor 2 (FGF2) in vivo.

Description

We performed in vivo fate mapping by inducible Cre-loxP and experimental pulp injury in molars to induce reparative dentinogenesis. Our results demonstrate that early delivery of exogenous FGF2 to exposed pulp led to proliferative expansion of αSMA-tdTomato + cells and their accelerated differentiation into odontoblasts.

In vivo lineage-tracing experiments showed that the calcified bridge/reparative dentin in FGF2-treated pulps were lined with an increased number of Dspp + odontoblasts and devoid of BSP + osteoblasts. The increased number of odontoblasts derived from αSMA-tdTomato + cells and the formation of reparative dentin devoid of osteoblasts provide in vivo evidence for the stimulatory effects of FGF signaling on odontoblast differentiation from early progenitors in dental pulp.

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Dentistry 71%

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DataCite10.25384/sage.c.406892613 d agoJSON v1
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