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Related Experiment Video

Updated: Jan 14, 2026

Isolation, Characterization and Comparative Differentiation of Human Dental Pulp Stem Cells Derived from Permanent Teeth by Using Two Different Methods

Isolation, Characterization and Comparative Differentiation of Human Dental Pulp Stem Cells Derived from Permanent Teeth by Using Two Different Methods

Published on: November 24, 2012

Identification of Apically Localized Endogenous Dental Pulp Stem Cells.

S Yoshida¹, E O Maruyama¹, W Hsu^1,2,3,4,5

¹The ADA Forsyth Institute, Somerville, MA, USA.

Journal of Dental Research

|October 18, 2025

Summary

This summary is machine-generated.

Researchers discovered new dental pulp stem cells (DPSCs) at the tooth apex. These Axin2+ DPSCs are key to pulp regeneration and reparative dentin formation after injury, advancing regenerative endodontics.

Keywords:

dental stem cell odontoblast pulp regeneration regenerative endodontic therapy stem cell-based therapy tissue regeneration

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Isolation, Characterization and Comparative Differentiation of Human Dental Pulp Stem Cells Derived from Permanent Teeth by Using Two Different Methods

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Area of Science:

Dentistry
Regenerative Medicine
Stem Cell Biology

Background:

Dental pulp stem cells (DPSCs) are vital for tooth vitality and regeneration.
The in situ role of stem cells in pulp and dentin regeneration after injury remains unclear.

Purpose of the Study:

To identify and characterize endogenous DPSCs involved in pulp and dentin regeneration.
To elucidate the in situ behavior and differentiation potential of these stem cells.

Main Methods:

Single-cell transcriptomics to profile molar pulp tissue.
Lineage tracing techniques to track DPSC behavior in vivo.
Transplantation of isolated DPSCs into mouse kidney capsules.

Main Results:

Identified endogenous Axin2+ DPSCs at the apex of mouse molars.
Axin2+ DPSCs differentiate into pulp cells and odontoblasts, contributing to pulp formation and maturation.
DPSCs rapidly proliferate upon injury, promoting pulp healing and reparative dentin formation.
Transplanted DPSCs formed ectopic pulp tissue and reparative dentin.

Conclusions:

Novel DPSCs identified at the tooth apex offer new insights into pulp biology.
These findings provide a foundation for developing regenerative endodontic therapies.
Understanding DPSC mechanisms can lead to new therapeutic strategies for pulp regeneration.