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Monitoring nanoparticle induced cell death in H441 cells using field-effect transistors
D Koppenhöfer1, A Susloparova, D Docter
1Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany.
Abstract:
In this work we propose the use of field-effect transistors (FETs) to examine the reaction of individual tumor cells to treatment with cell death inducing nanoparticles for future use in cancer therapy.For our analysis the human cancer cell line H441 (a human lung adenocarcinoma epithelial cell line) was cultivated on fibronectin coated FETs and treated with various concentrations of silicon nanoparticles. The cell line was cultivated under standard conditions. The reactions of the cells to the nanoparticles were analyzed via transfer function measurements, microscopic examination and standard MTT viability assays. Microscopic examination showed a clear change of morphology to round cells, which accompanies detachment from the surface of the substrate. Cell detachment could also be observed as a signal shift in the transfer function.The results of our study indicate the applicability of FETs for cancer research and analyzing pharmacological effects of new compounds. In addition our results implicate the usefulness of silicon nanoparticle based compounds in cancer therapy.
Insights
Field-effect transistors (FETs) effectively monitor individual tumor cell responses to silicon nanoparticles, showing potential for novel cancer therapy development and drug efficacy analysis.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Cancer Research
Background:
- Cancer therapy research requires precise tools to evaluate drug efficacy.
- Nanoparticles offer promising therapeutic potential but require rigorous testing.
Purpose of the Study:
- To investigate the use of field-effect transistors (FETs) for analyzing individual tumor cell reactions to nanoparticles.
- To assess the potential of silicon nanoparticles as a cancer therapeutic agent.
Main Methods:
- Cultivating human lung adenocarcinoma cells (H441) on fibronectin-coated FETs.
- Treating cells with varying concentrations of silicon nanoparticles.
- Analyzing cellular responses using transfer function measurements, microscopy, and MTT viability assays.
Main Results:
- Microscopic examination revealed morphological changes and cell detachment upon nanoparticle treatment.
- FET transfer function measurements correlated with observed cell detachment.
- MTT assays confirmed nanoparticle-induced cell death.
Conclusions:
- FETs are applicable for cancer research and evaluating the pharmacological effects of novel compounds.
- Silicon nanoparticle-based compounds show promise for future cancer therapy applications.
