Carcinogenesis, Teratogenesis & Mutagenesis ›› 2022, Vol. 34 ›› Issue (3): 227-232.doi: 10.3969/j.issn.1004-616x.2022.03.010

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Fuzi extracts on proliferation and radiosensitization of lung cancer A549 cells

ZHANG Qi, LIU Yujun, ZHUANG Xibing, QIAO Tiankui   

  1. Department of of Oncology, Jinshan Hospital, Fudan University, Shanghai 201508, China
  • Received:2021-12-05 Revised:2022-05-11 Published:2022-06-10

Abstract: OBJECTIVE: To study effects of Fuzi (aconite) extracts on proliferation and radiosensitization of human lung cancer A549 cells. METHODS: The cells were cultured and were divided into 4 groups:control,Fuzi extract,X-ray-irradiated,and Fuzi plus X-ray-irradiated groups. The control group was given culture medium,the Fuzi extract group was treated with IC20 30 μg/mL of Fuzi extract,the radiation group was given X-ray-irradiated,and the Fuzi plus X-ray-irradiated group were first treated with the Fuzi extract and then X-ray. After treatments,cell proliferation was detected by CCK-8 assay and colony formation assay was used to measure cell survival. Single-hit multi-target model was used to fit the survival curve and to calculate the sensitive enhancement ratio (SER). Apoptosis rates were detected by flow cytometry,and protein expression levels of Bax and Bcl-2 were detected by Western blot. RESULTS: Fuzi extract concentrations(<20 μg/mL) enhanced viability of A549 cells but increasing concentrations (>30 μg/mL) inhibited growth of the cells in a dose-dependent manner. The shoulder at the beginning of the survival curve in the Fuzi plus X-ray-irradiated group was slightly narrower, and the D0values in the X-ray-irradiated and Fuzi plus X-ray-irradiated group were 1.83 Gy,1.48 Gy,and the SER was 1.24,respectively. The apoptosis rates were significantly increased in the Fuzi plus X-ray-irradiated group and were higher than that in both the Fuzi and X-ray irradiation groups (P<0.05). The results of Western blot show that protein expressions of Bax were increased but were decreased for Bcl-2 in the Fuzi extract versus the X-ray-irradiated groups. Bax and Bcl-2 protein levels were changed more significantly in the Fuzi plus X-ray-irradiated than the other groups (P<0.01). CONCLUSION: Fuzi extract at 30 μg/mL inhibited proliferation and enhanced radiosensitizing effects on human lung cancer A549 cells,and the mechanism may be related to the induction of apoptosis.

Key words: lung neoplasms, Fuzi extraction, Chinese medicine treatment, radiotherapy, radiosentization, cell apoptosis

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