Phenotype heterogeneity in dental pulp stem niches

Area of Science:

• Dentistry
• Regenerative Medicine
• Stem Cell Biology

Background:

• Dental stem niches (DSNs) are vital microenvironments within dental tissues.
• These niches are important for tissue engineering and dental regeneration.
• DSNs contain diverse cell populations influencing stem cell behavior.

Purpose of the Study:

• To review dental stem niches (DSNs) focusing on their inhabitants.
• To explore the role of extrinsic and intrinsic cells within DSNs.
• To emphasize the angiogenic potential of DSNs in regenerative endodontics.

Main Methods:

• Literature review of dental stem niches.
• Analysis of niche inhabitants, including myeloid, endothelial, perivascular, and stromal cells (telocytes).
• Examination of stem/progenitor cell morphologies and differentiation states within DSNs.

Main Results:

• DSNs are heterogeneous environments housing various stem/progenitor cell types.
• Both extrinsic (e.g., myeloid) and intrinsic (e.g., endothelial, telocytes) cells contribute to niche function.
• The angiogenic potential of DSNs is significant for regenerative endodontic procedures.

Conclusions:

• Dental stem niches are complex and heterogeneous microenvironments.
• Accurate identification of niche 'team players' is essential for effective regenerative medicine.
• Understanding DSN heterogeneity advances dental regeneration and therapeutic strategies.