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Effect of pulsed field ablation on solid tumor cells and microenvironment
Yujue Wang1, Tian'an Jiang1,2,3, Liting Xie1,2
1Department of Ultrasound Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Frontiers in Oncology
|September 9, 2022
Summary
Pulsed field ablation uses electrical pulses to treat tumors by increasing cell membrane permeability and activating the immune system. This innovative non-thermal ablation method inhibits tumor growth and invasion through multiple biological effects.
Area of Science:
- Oncology
- Biophysics
- Immunology
Background:
- Pulsed field ablation is an emerging non-thermal ablation technique.
- Tumor ablation often requires thermal methods, which can cause collateral damage.
Purpose of the Study:
- To investigate the mechanisms of pulsed field ablation in tumor treatment.
- To evaluate the potential of pulsed field ablation as a non-thermal cancer therapy.
Main Methods:
- Utilizing electrical pulses for tumor tissue ablation.
- Analyzing the effects of electrical pulses on cell membranes and tumor microenvironment.
Main Results:
- Pulsed field ablation increases cell membrane permeability, causing irreversible electroporation.
- Electrical pulses activate the tumor immune state, increase microvessel permeability, and inhibit pathological blood vessel proliferation.
- The extracellular matrix is softened, inhibiting infiltrative tumor growth.
Conclusions:
- Pulsed field ablation offers a multi-faceted approach to cancer treatment by directly affecting tumor cells and modulating the tumor microenvironment.
- This method not only achieves short-term tumor killing but also mobilizes the immune system for sustained inhibition of tumor growth and invasion.
