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Gingival spheroids possess multilineage differentiation potential.

Rajasekaran Subbarayan1, Dinesh Murugan Girija2, Suresh Ranga Rao3

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Journal of Cellular Physiology
|March 8, 2017
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Human gingival mesenchymal stem cell (HGMSC) spheroids enhance stemness and multipotent differentiation compared to traditional cultures. Spheroid formation improves therapeutic potential for regenerative medicine.

Keywords:
endothelial lineagegingival spheroidsmultipotencyneuronal lineage

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Area of Science:

  • Regenerative Medicine
  • Stem Cell Biology
  • Biotechnology

Background:

  • Human gingival mesenchymal stem cells (HGMSCs) show promise for regenerative applications.
  • Conventional culture methods may not fully preserve stem cell properties.

Purpose of the Study:

  • To investigate the potential of HGMSC-derived spheroids (S-GMSCs) compared to conventional cultures.
  • To evaluate stemness, multipotency, and therapeutic efficacy of S-GMSCs.

Main Methods:

  • HGMSCs were cultured conventionally and as spheroids.
  • Phenotypic markers (STRO-1, Vimentin, CD73, CD105, CD34) and pluripotency markers (OCT4A, NANOG, SOX-2, SSEA4, TRA-1-60, TRA-181) were assessed.
  • Endothelial and neuronal differentiation potential was evaluated.
  • Protein levels and teratoma formation risk (IL-6, ARF) were analyzed.

Main Results:

  • S-GMSCs exhibited enhanced stemness markers (STRO-1, Vimentin) and pluripotency gene expression (OCT4A, NANOG, SOX-2).
  • S-GMSCs showed superior endothelial (CD31) and neuronal (TUJ1, E-Cadherin) differentiation.
  • S-GMSCs demonstrated higher protein levels and lacked pro-inflammatory cytokines, indicating reduced teratoma risk.
  • Upregulated expression of CAP1, CP, TGFβ, OPN, PPARɣ, TUJ1, and NESTIN was observed in spheroids.

Conclusions:

  • HGMSC spheroids maintain superior stemness and multipotency compared to adherent cultures.
  • S-GMSC culture enhances therapeutic efficacy for regenerative applications.
  • Spheroid formation is a promising strategy for optimizing HGMSC-based therapies.