Donor-dependent immunomodulatory effects of human dental pulp stem cells on macrophages - Summary - DentalSpire

Donor-dependent immunomodulatory effects of human dental pulp stem cells on macrophages

  • By

  • Vitor Rodrigues da Costa

  • Olívia Fonseca Souza

  • Michelli Ramires Teixeira

  • Anderson Lucas Alievi

  • Melissa Martins de Oliveira

  • Cristina Mary Orikaza

  • Ana Flávia Popi

  • Irina Kerkis

  • Rodrigo Pinheiro Araldi

  • July 2, 2026

  • 0 min

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Objective:

To investigate the immunomodulatory properties of human dental pulp stem cells (hDPSCs) from different donors on macrophages differentiated from monocytic cell lines, focusing on cytokine secretion and surface marker expression.

Approach:
  • Co-culture Systems: hDPSCs from three independent human donors were co-cultured with macrophages derived from THP-1 and U-937 cell lines to assess cytokine secretion and surface marker expression.
  • Cytokine Analysis: Multiplex immunoassays were used to evaluate cytokine secretion profiles.
  • Surface Marker Analysis: Flow cytometry was employed to analyze macrophage surface marker expression.
Key Findings:
  • Donor- and lineage-specific modulation of cytokines such as TNF-α, IL-10, IL-6, IL-1β, CXCL10, and IL-1RA was observed.
  • Surface marker analysis revealed minimal macrophage polarization.
  • hDPSCs exhibited transcriptional changes in inflammation-related genes upon interaction with macrophages.
Interpretation:

Limitations:
  • The study focused on in vitro models, which may not fully replicate in vivo conditions.
  • Variability in donor characteristics and the limited number of donors may affect generalizability.
Conclusion:

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