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:: دوره 7، شماره 4 - ( 8-1397 ) ::
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Curcumin Mitigates Radiation-induced Lung Pneumonitis and Fibrosis in Rats
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Radiation-induced lung injury is one of the most prominent factors that interfere with chest cancer radiotherapy, and poses a great threat to patients exposed to total body irradiation. Upregulation of pro-oxidant enzymes is one of the main mechanisms through which the late effects of ionizing radiation on lung injury can be exerted. Interleukin (IL)-4 and IL-13 are two important cytokines that have been proposed to be involved in this process. Through stimulation of dual oxidase 1 and 2 (DUOX1 & 2), they induce chronic oxidative stress in irradiated tissues. In this study, we evaluated the effects of curcumin treatment on the regulation of IL-4 and IL-13, DUOX1 & 2 genes as well as the pathological changes developed by this treatment. Twenty male Wistar rats were divided into four groups: radiation only; curcumin only; radiation + curcumin; and control group with neither pharmacotherapy nor radiation. Curcumin was administered for 4 and 6 consecutive days before and after irradiation, respectively. Also, the chest area was irradiated with 15 Gy using a cobalt-60 gamma rays source. All rats were sacrificed 67 days after irradiation followed by assessment of the levels of IL-4 and IL-13; the expression of IL-4 receptor-a1 (IL4Ra1), IL13Ra2, DUOX1 and DUOX2, and finally the histopathological changes were evaluated. Radiation led to the increased level of IL-4, while the level of IL-13 showed no change. QPCR results showed the upregulation of IL4Ra1, DUOX1 and DUOX2 following lung irradiation. Histopathological evaluation also showed a remarkable increase in pneumonitis and fibrosis. Treatment with curcumin downregulated the expression of IL-4, IL4Ra1, DUOX1 & 2. Furthermore, it could mitigate pneumonitis and fibrosis following lung irradiation. The late effects of radiation-induced lung injury may be due to the upregulation of DUOX1 & 2 genes. Curcumin, through modulation of these genes, may contribute to the protection against ionizing radiation. 
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نوع مطالعه: Original Article | موضوع مقاله: Biomarkers (diagnosis & treatment)
دریافت: ۱۳۹۷/۸/۲۲ | پذیرش: ۱۳۹۷/۱۱/۲ | انتشار: ۱۳۹۷/۱۱/۷
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Amini P, Saffar H, motevaseli E, najafi M, Taheri R A, Qazvini A et al . Curcumin Mitigates Radiation-induced Lung Pneumonitis and Fibrosis in Rats . Int J Mol Cell Med. 2018; 7 (4) :212-219
URL: http://ijmcmed.org/article-1-972-fa.html

Curcumin Mitigates Radiation-induced Lung Pneumonitis and Fibrosis in Rats . مجله بین المللی سلولی و مولکولی. 1397; 7 (4) :212-219

URL: http://ijmcmed.org/article-1-972-fa.html



دوره 7، شماره 4 - ( 8-1397 ) برگشت به فهرست نسخه ها
International Journal of Molecular and Cellular Medicine (IJMCM) International Journal of Molecular and Cellular Medicine (IJMCM)
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