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Article Publish Status: FREE
Abstract Title:

Radiosensitizing effect of diosmetin on radioresistant lung cancer cells via Akt signaling pathway.

Abstract Source:

PLoS One. 2017 ;12(4):e0175977. Epub 2017 Apr 17. PMID: 28414793

Abstract Author(s):

Zhijie Xu, Yuanliang Yan, Lingfang Xiao, Shuang Dai, Shuangshuang Zeng, Long Qian, Lin Wang, Xue Yang, Yi Xiao, Zhicheng Gong

Article Affiliation:

Zhijie Xu

Abstract:

Radiotherapy is a powerful tool in the treatment of cancer that has the advantage of preserving normal tissues. However, tumor radioresistance currently remains a major impediment to effective RT. Thus, exploring effective radiation sensitizers is urgently needed. In this study, we have shown that diosmetin, the aglycone of the lavonoid glycoside from olive leaves, citrus fruits and some medicinal herbs, has a promising effect on radiotherapy sensitization. In our results, DIO could induce G1 phase arrest and thus enhance the radiosensitivity of radioresistant A549/IR lung cancer cells. Furthermore, DIO also restrains the IR-induced DNA damage repair by inhibiting the activated Akt signaling pathway. The combination of Akt inhibition (DIO, LY294002 or MK-2206) and radiation potently blocked A549/IR cancer cell proliferation. In summary, these observations suggest that the natural compound DIO could act as a potential drug for the treatment of radioresistant lung cancer cells.

Study Type : In Vitro Study

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