TGF-β/Akt/Smad signaling regulates ionizing radiation-induced epithelial-mesenchymal transition in acquired radioresistant lung cancer cells

Autor: Yongchun Zhou, Lingli Liao, Nan Su, Hua Huang, Yaoguo Yang, Yan Yang, Gengming Wang, Hongbo Xu, Hao Jiang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Radiation Medicine and Protection, Vol 3, Iss 3, Pp 139-145 (2022)
Druh dokumentu: article
ISSN: 2666-5557
DOI: 10.1016/j.radmp.2022.05.003
Popis: Objective: To define the properties of lung cancer cells that resisted conventionally fractionated radiation exposure. Methods: Acquired radioresistant lung cancer cell line A549 was constructed by X-ray irradiation with a clinical conventional fraction dose of 2 ​Gy daily during 30 fractions. Cell morphology, molecular markers, migration capacity and invasion potential were evaluated by the microscope, Western blot, immunofluorescence, wound healing test and transwell chamber assay, respectively. Results: Radioresistant A549 ​cells shifted from an epithelial to a mesenchymal morphology, termed as epithelial-mesenchymal transition (EMT), and was accompanied by decreased expressions of epithelial markers (F ​= ​4.568, P ​
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