Link to bioRxiv paper:
http://biorxiv.org/cgi/content/short/2022.10.28.514178v1?rss=1

Authors: Jiravejchakul, N., Abe, G. L., Loza, M., Park, S., Matangkasombut, P., Sasaki, J.-I., Imazato, S., Diez, D., Standley, D. M.

Abstract:
In-depth knowledge of the cellular and molecular composition of dental pulp (DP) and the crosstalk between DP cells that drive tissue homeostasis or regeneration are not well understood. To address these questions, we performed data analysis of publicly available single-cell transcriptomes of DP. This analysis revealed that DP resident fibroblasts have a unique gene expression profile when compared with fibroblasts from 5 other reference tissues: blood, bone marrow, adipose tissue, lung, and skin. Genes coded for heparin-binding growth-factors, pleiotrophin (PTN) and midkine (MDK), possessed the highest differential expression levels in DP fibroblasts. In addition, we identified extensive crosstalk between DP fibroblasts and several other DP cells, including Schwann cells, MSCs and odontoblasts. These findings suggest that fibroblast-derived growth factors regulate DP niches, and thus have a potential role as dental therapeutic targets.

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