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Protocols for Assessing Radiofrequency Interactions with Gold Nanoparticles and Biological Systems for Non-invasive Hyperthermia Cancer Therapy

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A local effect model-based interpolation framework for experimental nanoparticle radiosensitisation data.

Jeremy M C Brown¹, Fred J Currell¹

¹School of Mathematics and Physics, Queen's University Belfast, Belfast, Northern Ireland, UK.

Cancer Nanotechnology

|February 21, 2017

Summary

This summary is machine-generated.

A new model predicts how gold nanoparticles (AuNP) affect cancer cell survival under X-ray therapy. This framework aids in planning future clinical trials for nanoparticle-enhanced radiotherapy.

Keywords:

Biological effect modelling Gold nanoparticles Local effect model (LEM)Radiosensitisers Radiotherapy

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Published on: August 18, 2023

Area of Science:

Medical Physics
Nanotechnology
Radiation Biology

Background:

Radiotherapy efficacy can be enhanced using high atomic number (high Z) nanoparticles.
Predicting cell survival fraction under varying nanoparticle concentrations and radiation conditions is crucial for treatment optimization.

Purpose of the Study:

To develop and validate a local effect model (LEM)-based framework for interpolating cell survival fraction.
To assess the framework's predictive capability for gold nanoparticle (AuNP)-doped endothelial cells under kilovoltage X-ray irradiation.

Main Methods:

Development of a LEM-based computational framework.
Experimental benchmarking using gold nanoparticle (AuNP)-doped bovine aortic endothelial cells (BAECs).
Validation against experimental data for three different kilovoltage X-ray spectra and two AuNP concentrations.

Main Results:

The developed framework successfully predicted cell survival fraction trends.
The model demonstrated interpolation capabilities for nanoparticle concentration and radiation spectra.
Quantitative agreement between predicted and experimental BAEC survival fractions was observed.

Conclusions:

The LEM-based framework provides a valuable tool for predicting nanoparticle-enhanced radiotherapy outcomes.
This approach can fill gaps in understanding cell line-specific responses to nanoparticle radiosensitization.
The framework will assist in designing and planning future pre-clinical trials for nanoparticle-enhanced photon radiotherapy.