Plasma-activated medium triggers immunomodulation and autophagic activity for periodontal regeneration

Shengfang Wang1,2, Peiyu Wang3,4,5, Rik Thompson3,4

  • 1Centre for Biomedical Technologies Queensland University of Technology Brisbane Queensland Australia.

Insights

Plasma-activated medium (PAM) reduces inflammation in periodontitis by modulating macrophages. PAM also promotes tissue regeneration, suggesting its potential as a novel therapeutic for periodontal disease.

Area of Science:

  • Biomedical Engineering
  • Immunology
  • Periodontology

Background:

  • Periodontitis is characterized by inflammation and increased inflammatory macrophage infiltration.
  • Plasma-activated medium (PAM) is recognized for its role in regulating innate immunity, particularly macrophage function.

Purpose of the Study:

  • To investigate the immunomodulatory effects of PAM on macrophages.
  • To explore the potential of PAM in managing periodontitis.

Main Methods:

  • PAM was generated using an argon jet and applied to cultured macrophages.
  • Macrophage markers, Akt signaling pathway, autophagy, and proregenerative effects on periodontal ligament cells (PDLCs) were analyzed.

Main Results:

  • PAM stimulation significantly reduced proinflammatory macrophage markers.
  • PAM activated autophagy via the Akt signaling pathway.
  • PAM-treated macrophages enhanced osteogenesis/cementogenesis markers and mineralization in PDLCs.

Conclusions:

  • PAM exhibits significant immunomodulatory and proregenerative effects.
  • PAM demonstrates potential as a therapeutic agent for periodontitis.

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