Protection against acute radiation-induced lung injury: a novel role for the anti-angiogenic agent Endostar

Molecular Medicine Reports
Kai ZhangLi Liu

Abstract

Radiotherapy is commonly used to treat thoracic malignancies, but often causes severe lung injury. Currently there are no effective protective strategies against radiation-induced lung injury (RILI). This study aimed to evaluate the ability of an angiogenesis antagonist, Endostar, against RILI, and the underlying mechanism in a mouse model. A total of 108 C57BL/6 female mice were randomized into 4 groups (n=27): i) control group; ii) Endostar group, animals were administered 7.75 ml/kg Endostar through intraperitoneal injection; iii) irradiation group, RILI was induced by exposing the animals to a single external irradiation on the thoraces (6 MV X-ray, 12 Gy); and iv) irradiation plus Endostar group, animals were subjected to Endostar treatment and irradiation as in groups 2 and 3. A total of 3 animals from each of the 4 groups were sacrificed at 1, 6, 12, 24 and 72 h and at 2, 4, 8 and 24 weeks following treatment. Clinical signs and pathology of RILI were examined. The expression of transforming growth factor-β 1 (TGF-β1) in lungs was analyzed by real-time quantitative polymerase chain reaction (RT-QPCR) and immunohistochemistry. Compared with the control group, irradiation induced evident interstitial edema and a significan...Continue Reading

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Citations

Sep 1, 2018·Journal of Radiation Research·Anna LierovaZuzana Sinkorova
Feb 2, 2018·Stem Cell Research & Therapy·Tiankai XuLihua Dong
Aug 11, 2019·International Journal of Molecular Sciences·Michele ZanoniAnna Tesei

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