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Azithromycin attenuates acute radiation-induced lung injury in mice
Radiation-induced lung injury (RILI) is a common and major obstacle in thoracic cancer radiotherapy, resulting in considerable morbidity and limiting the dose of radiation. However, an effective treatment option remains to be established. Therefore, the present study aimed to investigate the effects...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
D.A. Spandidos
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5652241/ https://www.ncbi.nlm.nih.gov/pubmed/29098024 http://dx.doi.org/10.3892/ol.2017.6813 |
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author | Tang, Fei Li, Rui Xue, Jianxin Lan, Jie Xu, He Liu, Yongmei Zhou, Lin Lu, You |
author_facet | Tang, Fei Li, Rui Xue, Jianxin Lan, Jie Xu, He Liu, Yongmei Zhou, Lin Lu, You |
author_sort | Tang, Fei |
collection | PubMed |
description | Radiation-induced lung injury (RILI) is a common and major obstacle in thoracic cancer radiotherapy, resulting in considerable morbidity and limiting the dose of radiation. However, an effective treatment option remains to be established. Therefore, the present study aimed to investigate the effects of azithromycin (AZM) in acute RILI with a mouse model. In the present study, C57BL/6 mice were given a single thoracic irradiation of 16 Gy and administered orally with AZM. The lung histopathological findings, the levels of malondialdehyde (MDA; an indicator of oxidative damage) and the concentration of pro-inflammatory and pro-fibrotic cytokines in plasma were assessed on 28 day following irradiation. In addition, the total cell counts in bronchoalveolar lavage fluid (BALF), the pro-inflammatory and pro-fibrotic cytokine gene expression in lung tissue were evaluated on day 7, 14 and 28 following irradiation. Administration with AZM markedly alleviated acute RILI as indicated by hematoxylin and eosin and Masson staining. The levels of MDA and total cell counts in BALF significantly reduced in AZM treated mice. AZM also down-regulated the concentration and mRNA expression of interleukin (IL)-1β, IL-6, tumor necrosis factor-α and transforming growth factor-β1. In addition, AZM attenuated the irradiation-induced increases in the mRNA expression of fibrotic markers (α-smooth muscle actin and α-1 type I collagen). AZM treatment mitigated the radiation-induced acute lung injury possibly by its anti-inflammatory and anti-fibrotic effects. |
format | Online Article Text |
id | pubmed-5652241 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | D.A. Spandidos |
record_format | MEDLINE/PubMed |
spelling | pubmed-56522412017-11-02 Azithromycin attenuates acute radiation-induced lung injury in mice Tang, Fei Li, Rui Xue, Jianxin Lan, Jie Xu, He Liu, Yongmei Zhou, Lin Lu, You Oncol Lett Articles Radiation-induced lung injury (RILI) is a common and major obstacle in thoracic cancer radiotherapy, resulting in considerable morbidity and limiting the dose of radiation. However, an effective treatment option remains to be established. Therefore, the present study aimed to investigate the effects of azithromycin (AZM) in acute RILI with a mouse model. In the present study, C57BL/6 mice were given a single thoracic irradiation of 16 Gy and administered orally with AZM. The lung histopathological findings, the levels of malondialdehyde (MDA; an indicator of oxidative damage) and the concentration of pro-inflammatory and pro-fibrotic cytokines in plasma were assessed on 28 day following irradiation. In addition, the total cell counts in bronchoalveolar lavage fluid (BALF), the pro-inflammatory and pro-fibrotic cytokine gene expression in lung tissue were evaluated on day 7, 14 and 28 following irradiation. Administration with AZM markedly alleviated acute RILI as indicated by hematoxylin and eosin and Masson staining. The levels of MDA and total cell counts in BALF significantly reduced in AZM treated mice. AZM also down-regulated the concentration and mRNA expression of interleukin (IL)-1β, IL-6, tumor necrosis factor-α and transforming growth factor-β1. In addition, AZM attenuated the irradiation-induced increases in the mRNA expression of fibrotic markers (α-smooth muscle actin and α-1 type I collagen). AZM treatment mitigated the radiation-induced acute lung injury possibly by its anti-inflammatory and anti-fibrotic effects. D.A. Spandidos 2017-11 2017-08-24 /pmc/articles/PMC5652241/ /pubmed/29098024 http://dx.doi.org/10.3892/ol.2017.6813 Text en Copyright: © Tang et al. This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/) , which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. |
spellingShingle | Articles Tang, Fei Li, Rui Xue, Jianxin Lan, Jie Xu, He Liu, Yongmei Zhou, Lin Lu, You Azithromycin attenuates acute radiation-induced lung injury in mice |
title | Azithromycin attenuates acute radiation-induced lung injury in mice |
title_full | Azithromycin attenuates acute radiation-induced lung injury in mice |
title_fullStr | Azithromycin attenuates acute radiation-induced lung injury in mice |
title_full_unstemmed | Azithromycin attenuates acute radiation-induced lung injury in mice |
title_short | Azithromycin attenuates acute radiation-induced lung injury in mice |
title_sort | azithromycin attenuates acute radiation-induced lung injury in mice |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5652241/ https://www.ncbi.nlm.nih.gov/pubmed/29098024 http://dx.doi.org/10.3892/ol.2017.6813 |
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