Abstract Title:

Naringenin Ameliorates Radiation-Induced Lung Injury by Lowering IL-1Level.

Abstract Source:

J Pharmacol Exp Ther. 2018 Aug ;366(2):341-348. Epub 2018 Jun 4. PMID: 29866791

Abstract Author(s):

Chao Zhang, Wenfeng Zeng, Yi Yao, Bin Xu, Xiuli Wei, Luoyang Wang, Xiaozhe Yin, Apurba Kumar Barman, Fayun Zhang, Chunling Zhang, Qibin Song, Wei Liang

Article Affiliation:

Chao Zhang


Radiation-induced lung injury (RILI) is the main complication of radiotherapy for thoracic malignancies. Since naringenin, a potent immune-modulator, has been found to relieve bleomycin-induced lung fibrosis by restoring the balance of disordered cytokines, we sought to determine whether naringenin would mitigate RILI and to investigate the underlying mechanism. Animals received fractionated irradiation in the thoracic area to induce RILI. Enzyme-linked immunosorbent assay and MILLIPLEX assays were used for serum and bronchoalveolar lavage fluid for cytokine analyses, hematoxylin and eosin staining for pathologic changes, and Masson trichrome staining for determination of lung fibrosis. Interleukin (IL)-1was found significantly elevated after thoracic irradiation and it triggered production of profibrotic tumor growth factorboth in vivo and in vitro, suggesting the vital role of in IL-1in the development of RILI. Furthermore, we found that naringenin was able to ameliorate RILI through downregulation of IL-1and restoration of the homeostasis of inflammatory factors. Our results demonstrated that naringenin could serve as a potent immune-modulator to ameliorate RILI. More importantly, we suggest that a new complementary strategy of maintaining the homeostasis of inflammatory factors combined with radiation could improve the efficacy of thoracic radiotherapy.

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