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Life sciences · Journal article
Bioengineering · September 11, 2026
Early or partial results. Treat as a signal, not a conclusion.
This is an in vitro mechanistic study demonstrating that two pancreatic cancer cell lines (PANC-1 and MIA PaCa-2) exhibit differential sensitivity to microsecond pulsed electric fields in terms of membrane permeabilization, cell death, viability, growth, and cell-cycle effects. The findings suggest that electroporation protocols for pancreatic cancer require cell-line-specific or potentially patient-specific optimization, but clinical relevance remains to be established.
In vitro comparative cell study. Two human pancreatic ductal adenocarcinoma (PDAC) cell lines: PANC-1 and MIA PaCa-2.. Intervention: Microsecond pulsed electric fields (PEFs) with variable pulse counts and field strengths (1 kV/cm, 2.5 kV/cm) applied to PDAC cells.. Compared with: Untreated control cells (implied from context of differential response assessment)..
Immediate cell death thresholds differ between lines: PANC-1 at 16 pulses (1 kV/cm) vs MIA PaCa-2 at 30 pulses (2.5 kV/cm) Viability reduction at 48 h with 4 pulses (1 kV/cm) differs: −19.3% (PANC-1) vs −46.4% (MIA PaCa-2) Growth inhibition at 48 h with 4 pulses (1 kV/cm) differs: −30.3% (PANC-1) vs −57.6% (MIA PaCa-2)
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These findings suggest that electroporation-based approaches for pancreatic cancer may require parameter and cell-type optimization, but translation to clinical use requires in vivo validation, patient-derived models, and assessment of safety and efficacy in human subjects.
In vitro mechanistic study in two PDAC cell lines demonstrating parameter-dependent responses to pulsed electric fields; foundational work requiring in vivo validation and clinical translation.
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Quoted from the source exactly as published.
These findings suggest that electroporation-based approaches for pancreatic cancer may require parameter and cell-type optimization, but translation to clinical use requires in vivo validation, patient-derived models, and assessment of safety and efficacy in human subjects.
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Pancreatic ductal adenocarcinoma (PDAC) is a highly aggressive, treatment-resistant tumor requiring novel therapeutic approaches. Electroporation (EP)-based strategies are promising tools for local tumor control and enhanced drug delivery. However, cellular responses and protocols optimization remain poorly investigated in PDAC. Here, we investigated the effects of variable microsecond pulsed electric fields (PEFs) on PANC-1 and MIA PaCa-2 PDAC cells. Immediate responses were assessed via membrane permeabilization and cell death. Delayed effects were evaluated through viability, growth, cell cycle and expression of stress markers. Immediate cell death occurred above specific thresholds in PANC-1 and MIA PaCa-2 cells (16 pulses at 1 kV/cm and 30 pulses at 2.5 kV/cm, respectively), suggesting differential sensitivity to PEFs. Delayed analyses confirmed differences in both viability (−19.3% vs. −46.4% with 4 pulses, 1 kV/cm, 48 h) and growth (−30.3% vs. −57.6% with 4 pulses, 1 kV/cm, 48 h). An opposite modulation of the S-phase population was also observed at 48 h (+7.4% with 20 pulses at 1 kV/cm and −9.2% with 8 pulses at 1 kV/cm for PANC-1 and MIA PaCa-2, respectively). Both cell lines showed similar regulations of apoptosis-associated and autophagy-related markers. Overall, PEFs elicited parameter- and cell-specific responses, supporting fine-tuned EP protocols for pancreatic cancer therapy.
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