Radiation enteropathy--pathogenesis, treatment and prevention.

Area of Science:

• Oncology
• Gastroenterology
• Radiation Oncology

Background:

• The number of cancer survivors has tripled, increasing the population at risk for adverse effects from cancer therapies.
• Radiation therapy, particularly for pelvic and abdominal tumors, frequently causes intestinal injury, with long-term effects now more prevalent than Inflammatory Bowel Disease (IBD).

Purpose of the Study:

• To review the pathogenesis of early and delayed radiation-induced bowel toxicity.
• To present current diagnostic and management strategies for radiation-induced gastrointestinal adverse effects.
• To outline future research priorities in understanding and treating radiation-induced bowel disorders.

Main Methods:

• Review of current literature on radiation-induced bowel toxicity.
• Discussion of advancements in radiation therapy techniques, such as dose-sculpting.
• Analysis of emerging insights into the molecular and cellular mechanisms underlying radiation-induced bowel injury.

Main Results:

• Radiation therapy poses a significant risk of intestinal injury to cancer survivors.
• Advanced treatment techniques like dose-sculpting reduce radiation toxicity.
• Improved understanding of pathophysiology is leading to better diagnostic and management options.

Conclusions:

• Radiation-induced bowel toxicity is a growing clinical concern in cancer survivorship.
• Ongoing research into molecular and cellular mechanisms is crucial for advancing gastroenterological care for these patients.
• Multidisciplinary efforts are needed to mitigate and manage long-term gastrointestinal side effects of radiation therapy.