Exploring the Potential of Ultrasound Therapy to Reduce Skin Scars: An In Vitro Study Using a Multi-Well Device Based...

Area of Science:

• Biomedical Engineering
• Dermatology
• Regenerative Medicine

Background:

• Excessive skin scarring impacts millions globally, presenting cosmetic and systemic challenges with no definitive treatment.
• Ultrasound therapies show promise for skin disorders, but their precise mechanisms remain largely unknown.
• Developing novel therapeutic devices is crucial for advancing scar treatment options.

Purpose of the Study:

• To investigate the potential of ultrasound for treating abnormal scarring.
• To develop and validate a multi-well device utilizing printable piezoelectric material (PiezoPaint™).
• To assess the impact of ultrasound on human fibroblast behavior, including proliferation, adhesion, and extracellular matrix production.

Main Methods:

• Evaluated the compatibility of the PiezoPaint™ device with cell cultures by measuring heat shock response and cell viability.
• Utilized the multi-well device to apply ultrasound treatment to human fibroblasts.
• Quantified fibroblast proliferation, focal adhesions, and extracellular matrix (ECM) deposition post-treatment.

Main Results:

• Ultrasound treatment significantly reduced fibroblast proliferation and ECM deposition.
• No significant changes were observed in cell viability or focal adhesion.
• The observed effects are suggested to be mediated by nonthermal ultrasound mechanisms.

Conclusions:

• Ultrasound therapy, delivered via a novel printable piezoelectric device, shows significant potential for reducing abnormal scarring.
• The findings indicate that ultrasound can modulate fibroblast behavior, decreasing ECM deposition without compromising cell viability.
• This technology offers a promising avenue for scar reduction and a valuable tool for studying ultrasound effects on cellular processes.