Cell Type-Specific Anti-Adhesion Properties of Peritoneal Cell Treatment with Plasma-Activated Media (PAM)

Area of Science:

• Biomedical Engineering
• Cell Biology
• Wound Healing Research

Background:

• Postoperative abdominal adhesions cause significant clinical complications.
• Plasma-activated media (PAM) shows potential for modulating cell proliferation and protein biosynthesis in wound healing.
• Targeting cell-specific responses is crucial for preventing pathological outcomes.

Purpose of the Study:

• To investigate PAM as a therapeutic option for preventing abdominal adhesions.
• To analyze cell type-specific anti-adhesive responses to PAM.
• To elucidate the biochemical mechanisms of PAM's therapeutic effects.

Main Methods:

• Primary human peritoneal fibroblasts and mesothelial cells were isolated and treated with varying PAM dosages.
• Contact- and marker-independent Raman imaging was used to analyze cell-specific PAM effects.
• Molecular biological methods validated findings on cell growth, cycle, apoptosis, and protein expression.

Main Results:

• PAM induced cell growth retardation, transient DNA damage, cell cycle arrest, and apoptosis in peritoneal fibroblasts.
• A therapeutic dose window was identified, targeting pro-adhesive fibroblasts while mesothelial cells maintained anti-adhesive properties.
• PAM treatment reduced the expression and secretion of pro-adhesive cytokines and extracellular matrix proteins in fibroblasts.

Conclusions:

• PAM exhibits cell type-specific effects, selectively inhibiting pro-adhesive peritoneal fibroblasts.
• PAM treatment reduces key factors contributing to adhesion formation.
• This research provides insights into PAM's biochemical mechanisms for preventing pro-adhesive disorders.