Plasma-activated media selectively induces apoptotic death via an orchestrated oxidative stress pathway in high-grade serous ovarian cancer cells

  • 0Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia.

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Summary

This summary is machine-generated.

Cold atmospheric pressure plasma-activated media (PAM) shows promise for treating high-grade serous ovarian cancer (HGSOC). PAM selectively targets cancer cells, inducing apoptosis and offering a potentially less toxic alternative to chemotherapy.

Area Of Science

  • Oncology
  • Biophysics
  • Biomedical Engineering

Background

  • High-grade serous ovarian cancer (HGSOC) is aggressive, often diagnosed late, and exhibits high treatment resistance.
  • Current treatments like surgery and chemotherapy have severe side effects and limited efficacy in advanced stages.
  • Novel, less toxic therapeutic strategies are urgently needed for HGSOC.

Purpose Of The Study

  • To evaluate cold atmospheric pressure (CAP) gas discharge technology, specifically plasma-activated media (PAM), as a novel therapeutic strategy for HGSOC.
  • To assess PAM's efficacy and mechanism of action in pre-clinical HGSOC models.

Main Methods

  • PAM was generated using cell growth media.
  • HGSOC cell lines, patient ascites cells, and primary tissue explants were treated with PAM.
  • Cell viability, cell death (apoptosis), and oxidative stress were analyzed.

Main Results

  • PAM demonstrated superior efficacy compared to carboplatin chemotherapy in selectively targeting ovarian cancer cells in patient samples.
  • PAM induced apoptosis in HGSOC cell lines through oxidative stress and mitochondrial pathways.
  • PAM was validated to selectively target tumor tissue and ascites cells.

Conclusions

  • PAM is a promising therapeutic strategy for HGSOC, showing selective tumor targeting and induction of cancer cell death.
  • Further investigation in in vivo models is warranted to develop intraperitoneal PAM-based therapy for HGSOC patients.
  • This research supports the translation of PAM into clinical practice for ovarian cancer treatment.

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