Single CD271 marker isolates mesenchymal stem cells from human dental pulp.

Area of Science:

• Regenerative Medicine
• Stem Cell Biology
• Craniofacial Biology

Background:

• Mesenchymal stem cells (MSCs) are vital for regenerative medicine, with potential applications in dentistry.
• Dental pulp tissues (DPs) are a source of adult MSCs, termed dental mesenchymal stem cells (DMSCs).
• A standardized method for isolating DMSCs using specific surface markers is lacking.

Purpose of the Study:

• To evaluate different surface marker combinations for isolating multipotent DMSCs from dental pulp cells (DPCs).
• To compare the multilineage differentiation capacity of DMSCs isolated using CD51/CD140α, CD271, and STRO-1/CD146 markers.
• To identify the most effective surface marker for isolating DMSCs with significant odontogenic potential.

Main Methods:

• Dental pulp cells (DPCs) were analyzed using fluorescence-activated cell sorting (FACS) for specific surface markers.
• DMSCs were isolated using combinations of CD51/CD140α, CD271, and STRO-1/CD146.
• Isolated DMSCs underwent in vitro differentiation assays under odontogenic conditions.

Main Results:

• FACS analysis identified distinct populations: 27.3% CD51(+)/CD140α(+), 10.6% CD271(+), and 0.3% STRO-1(+)/CD146(+).
• All isolated DMSCs demonstrated differentiation into odontogenic lineages.
• CD271(+) DMSCs exhibited the highest odontogenic potential compared to other subsets.

Conclusions:

• While CD51/CD140α, CD271, and STRO-1/CD146 can isolate DMSCs, CD271 is the most effective single marker.
• CD271(+) DMSCs show superior odontogenic capacity, making them promising for dental regenerative medicine.
• This finding aids in standardizing DMSC isolation for potential clinical applications.