Cited by 260Effects of Radiation ExposureLiver physiology and pathologyHepatocellular Carcinoma Treatment and Prognosis

Radiation-induced liver disease: current understanding and future perspectives

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Kim, Jieun, Jung, Youngmi·2017·Experimental & Molecular Medicine

Abstract

Although radiotherapy (RT) is used for the treatment of cancers, including liver cancer, radiation-induced liver disease (RILD) has emerged as a major limitation of RT. Radiation-induced toxicities in nontumorous liver tissues are associated with the development of numerous symptoms that may limit the course of therapy or have serious chronic side effects, including late fibrosis. Although the clinical characteristics of RILD patients have been relatively well described, the understanding of RILD pathogenesis has been hampered by a lack of reliable animal models for RILD. Despite efforts to develop suitable experimental animal models for RILD, current animal models rarely present hepatic veno-occlusive disease, the pathological hallmark of human RILD patients, resulting in highly variable results in RILD-related studies. Therefore, we introduce the concept and clinical characteristics of RILD and propose a feasible explanation for RILD pathogenesis. In addition, currently available animal models of RILD are reviewed, focusing on similarities with human RILD and clues to understanding the mechanisms of RILD progression. Based on these findings from RILD research, we present potential therapeutic strategies for RILD and prospects for future RILD studies. Therefore, this review helps broaden our understanding for developing effective treatment strategies for RILD. Radiation-induced liver disease (RILD) remains poorly understood and treated because of the lack of suitable animal models. There are no effective treatments for liver cancer patients who experience this life-threatening complication of radiotherapy, partly because the precise mechanisms of disease development remain largely unknown. In a review article, Jieun Kim and Youngmi Jung from Pusan National University, South Korea, describe the insights into RILD pathology that have come from clinical observations and patient-derived tissue samples. The researchers describe existing mouse, rat, rabbit, dog and monkey models for RILD, but these animals rarely develop obstructed small veins in the liver, the hallmark symptom of the human disease. Animal models that more closely mirror human RILD, the authors argue, should reveal new insights into disease mechanisms and provide a pre-clinical platform for drug screening.

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  • Radiation-induced liver toxicity typically presents within 4-8 weeks of irradiation, but cases have been reported as early as 2 weeks and as late as 7 months after irradiation.

    “Radiationinduced liver toxicity typically presents within 4 -8 wk of irradiation; however, cases have been reported as early as 2 wk after irradiation and as late as 7 mo afterbirradiation ( 50 ).”

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Authors
Kim, J., & Jung, Y.
Affiliations
Pusan National University (KR)
Corresponding author
Jung, Youngmi
Venue
Experimental & Molecular Medicine
Published
2017-07
Volume
49
Issue
7
Pages
e359-e359
ISSN
  • 1226-3613 (ISSN-L)
  • 2092-6413
OpenAlex
W2622862697
Cited by
260
References
70
Citations by year
2026: 20 · 2025: 33 · 2024: 54 · 2023: 29 · 2022: 45 · 2021: 34 · 2020: 24 · 2019: 12 · 2018: 7 · 2017: 2
FWCI
1.86
Type
journal article
Language
en
Open access
Locations
  • Experimental & Molecular Medicine (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • National Research Foundation
  • National Research Foundation of Korea
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Effects of Radiation Exposure
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Hepatology › Hepatocellular Carcinoma Treatment and Prognosis
Keywords
radiation-induced liver injury, radiotherapy toxicity, veno-occlusive disease, liver fibrosis, liver cancer radiotherapy, drug screening
MeSH terms
Animals, Disease Models, Animal, Female, Carcinoma, Hepatocellular, Humans, Liver, Liver Diseases, Liver Neoplasms, Male, Radiation Injuries

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