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Related Experiment Video

Updated: Jul 9, 2026

Live Imaging to Quantify Cellular Radiosensitivity in Patient-Derived Tumor Organoids

Live Imaging to Quantify Cellular Radiosensitivity in Patient-Derived Tumor Organoids

Published on: April 5, 2024

Radiotherapy and wound healing.

Haresh L Devalia¹, Lucy Mansfield

¹Department of General Surgery, St George's Healthcare NHS Trust, Blackshaw Road, Tooting, London SW17 0QT, UK. hareshdevalia@doctors.org.uk

International Wound Journal

|December 18, 2007

Summary

Radiation exposure can impair wound healing through cellular damage and decreased circulation. A new understanding reveals that cytokines, particularly transforming growth factor beta1, drive radiation fibrosis and chronic wounds, suggesting future therapeutic targets.

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Area of Science:

Radiation Biology
Wound Healing Research
Cellular Pathogenesis

Background:

Radiation exposure causes significant challenges in wound healing.
Traditional hypotheses focus on circulatory decrease and direct cellular damage.
Emerging evidence points to a complex inflammatory cascade.

Purpose of the Study:

To review the fundamental physics of radiation and its effects on wound healing.
To explore current hypotheses and new concepts in radiation pathogenesis.
To highlight the role of cytokines, especially transforming growth factor beta1, in radiation-induced fibrosis.

Main Methods:

Literature review of basic radiation physics.
Examination of postulated hypotheses on radiation effects.
Synthesis of recent advances in understanding radiation pathogenesis.
Overview of the role of transforming growth factor beta1.

Main Results:

Radiation pathogenesis involves an immediate cytokine cascade post-exposure.
Sustained myofibroblast activation contributes to chronic wound development.
Transforming growth factor beta1 is identified as a key mediator in radiation fibrosis.

Conclusions:

Modern understanding of radiation's impact on wounds emphasizes a cytokine-driven process.
Targeting cytokine pathways presents a promising strategy for future wound healing therapies.
Further research focusing on cytokine antagonism is crucial for clinical advancements.