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Related Experiment Video

Updated: Sep 26, 2025

An In-House-Built and Light-Emitting-Diode-Based Photodynamic Therapy Device for Enhancing Verteporfin Cytotoxicity in a 2D Cell Culture Model

An In-House-Built and Light-Emitting-Diode-Based Photodynamic Therapy Device for Enhancing Verteporfin Cytotoxicity in a 2D Cell Culture Model

Published on: January 13, 2023

AI-enabled, implantable, multichannel wireless telemetry for photodynamic therapy.

Woo Seok Kim¹, M Ibrahim Khot², Hyun-Myung Woo¹

¹Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, USA.

Nature Communications

|April 22, 2022

Summary

This study introduces a novel wireless photodynamic therapy (PDT) system using DeepLabCut (DLC) and simulation to improve light delivery for cancer treatment. The developed system effectively suppresses tumor growth in preclinical models, offering a promising approach for future therapies.

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Area of Science:

Biomedical Engineering
Oncology
Photochemistry

Background:

Photodynamic therapy (PDT) efficacy relies on precise light delivery to activate photosensitizers.
Current wireless light delivery methods for PDT face limitations in tissue penetration and activation efficiency.
Remote light delivery is crucial for effective cancer treatment via PDT.

Purpose of the Study:

To develop an advanced wireless telemetry system for enhanced photodynamic therapy (PDT).
To overcome limitations of low tissue penetration and photosensitizer activation in wireless PDT.
To establish guidelines for effective PDT regimen design using simulation and AI.

Main Methods:

Integrated thermal/light simulation platform to optimize wavelengths and light sources.
DeepLabCut (DLC)-informed wireless telemetry for precise light delivery.
In vivo studies using Hypericin and Foscan mediated PDT on cancer xenograft models.
High-throughput (<20 mice) and multi-wavelength operation capabilities.

Main Results:

Demonstrated substantial suppression of tumor growth in cancer xenograft models.
Validated the effectiveness of DLC-assisted wireless telemetry for adequate tumor illumination.
The integrated simulation platform provided optimized parameters for PDT.

Conclusions:

The developed DeepLabCut-informed wireless telemetry system significantly enhances PDT efficacy.
The system offers a promising approach for effective cancer treatment through improved light delivery.
Further investigation in research and clinical settings is warranted for this advanced PDT method.