Radiation-induced liver disease: current understanding and future perspectives

Area of Science:

• Oncology
• Hepatology
• Radiation Oncology

Background:

• Radiotherapy (RT) is a vital cancer treatment, but radiation-induced liver disease (RILD) poses a significant clinical challenge.
• RILD involves toxicities in non-tumorous liver tissues, leading to symptoms, treatment limitations, and chronic side effects like fibrosis.
• Understanding RILD pathogenesis is hindered by a lack of reliable animal models that replicate human RILD hallmarks.

Purpose of the Study:

• To elucidate the concept and clinical characteristics of RILD.
• To propose a feasible explanation for RILD pathogenesis.
• To review current animal models for RILD and their relevance to human disease.

Main Methods:

• Review of clinical characteristics of RILD patients.
• Analysis of existing experimental animal models for RILD.
• Literature review on RILD pathogenesis and therapeutic strategies.

Main Results:

• Current animal models often fail to replicate hepatic veno-occlusive disease, a key feature of human RILD.
• Variability in RILD studies is linked to limitations in existing animal models.
• The review identifies potential therapeutic strategies and future research directions for RILD.

Conclusions:

• A comprehensive understanding of RILD pathogenesis is crucial for developing effective treatments.
• Improved animal models that mimic human RILD are needed to advance research.
• This review provides insights to enhance RILD treatment strategies and future study designs.