Electroporation Techniques in Oncological Therapies

Electroporation techniques harness precisely controlled electric pulses to transiently disrupt cell membranes, enhancing transport of ions, small molecules and macromolecules. In oncological therapies, reversible electroporation underpins electrochemotherapy and gene electrotransfer, improving intratumoural delivery of cytotoxic drugs and therapeutic nucleic acids without significant cell death. Irreversible electroporation employs higher-intensity pulses to induce permanent membrane permeabilisation, achieving non-thermal tumour ablation while preserving extracellular matrix and adjacent critical structures. Advancements in pulse waveforms, electrode geometry and image-guided planning have refined targeting of deep-seated malignancies. High-frequency irreversible electroporation mitigates muscle contractions associated with conventional protocols, facilitating clinical adoption without paralytic agents. Integration with immunomodulatory strategies, including immune checkpoint inhibitors and novel carriers, has demonstrated synergistic antitumour immunity. From preclinical models to early clinical studies, electroporation-based modalities exhibit broad applicability across hepatic, pancreatic, cutaneous and soft tissue tumours. Ongoing optimisation of electrical parameters and combination regimens continues to expand the therapeutic window, underscoring the global significance of electroporation as a minimally invasive and versatile tool in modern oncology.

Research from Nature Portfolio

Recent studies have demonstrated that electroporation can potentiate immune checkpoint therapy in immunosuppressive tumours. In a murine model of pancreatic ductal adenocarcinoma, non-thermal ablation via irreversible electroporation was shown to induce immunogenic cell death and remodel the stromal barrier, enhancing dendritic cell activation and selective infiltration of CD8+ lymphocytes. When combined with PD-1 blockade, this approach yielded durable tumour regression and long-term immune memory.

Another key development is the implementation of high-frequency irreversible electroporation to address muscle contractions associated with standard pulse regimens. By delivering bursts of bipolar pulses at elevated frequencies, researchers achieved uniform ablation in brain tissue without paralytic agents, marking a step towards safer clinical protocols for deep-seated lesions.

Electroporation Techniques in Oncological Therapies publication trend

The graph below shows the total number of articles in electroporation techniques in oncological therapies across all publications each year (not limited to Nature Index journals).

Technical terms

Electroporation: Transient increase in cell membrane permeability induced by applied electric pulses, enabling molecular transport.

Reversible electroporation: Electroporation with controlled pulses that allow membrane resealing and cell survival, used for drug or gene delivery.

Irreversible electroporation: Application of high-intensity pulses leading to permanent membrane disruption and non-thermal cell death for tissue ablation.

High-frequency irreversible electroporation: Delivery of bipolar pulses at elevated frequencies to minimise muscular contractions during ablation.

Electrochemotherapy: Combination of reversible electroporation and cytotoxic drugs to enhance tumour uptake and efficacy.

Immunogenic cell death: Form of cell death that releases tumour antigens and danger signals, stimulating adaptive immune responses.

References

1. Oral Microalgae‐Based Biosystem to Enhance Irreversible Electroporation Immunotherapy in Hepatocellular Carcinoma. Advanced Science (2025).
2. High-frequency irreversible electroporation (H-FIRE) for non-thermal ablation without muscle contraction. BioMedical Engineering OnLine (2011).
3. Tumor Ablation with Irreversible Electroporation. PLOS ONE (2007).
4. Recent Advancements in Electroporation Technologies: From Bench to Clinic. Annual Review of Biomedical Engineering (2023).
5. Cell death due to electroporation – A review. Bioelectrochemistry (2021).
6. Irreversible electroporation reverses resistance to immune checkpoint blockade in pancreatic cancer. Nature Communications (2019).
7. Bursts of Bipolar Microsecond Pulses Inhibit Tumor Growth. Scientific Reports (2015).