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Chinese Journal of Lung Diseases(Electronic Edition) ›› 2020, Vol. 13 ›› Issue (03): 314-318. doi: 10.3877/cma.j.issn.1674-6902.2020.03.005

• Original Article • Previous Articles     Next Articles

Effect of curcumine on migration and invasion of A549 cells

Dan Tan1, Xiaoqin Zeng2, Wei Xu1, Jian Chen3, Renjie Zhou1,()   

  1. 1. Emergency and General Medical Center, Second Affiliated Hospital, Army Military Medical University, Chongqing 400037, China
    2. Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Army Military Medical University, Chongqing 400037, China
    3. Military Institute of Immunology, Second Affiliated Hospital, Army Military Medical University, Chongqing 400037, China
  • Received:2020-03-11 Online:2020-06-25 Published:2021-07-22
  • Contact: Renjie Zhou

Abstract:

Objective

To explore the effect and mechanism of curcumine on the migration and invasion of A549 cells.

Methods

Trypan blue dye exclusion assay was used to determine the effect of various concentrations of curcumine on the cell death rate. The proliferation of A549 cells was detected by MTT assay. The migration and invasion of A549 cells were determined by wound scratch assay and Transwell assay, respectively. The expression levels of EGFR, E-cadherin and N-cadherin in A549 cells affected by curcumine were detected by Western blotting method.

Results

When the curcumine concentration was 0-40 μg/ml, the mortality rate of the normal lung epithelial cells was low, and the difference was not statistically significant (P>0.05), indicating that curcumine had little toxic and side effects on the normal lung epithelial cells. The MTT results showed that curcumine inhibited the proliferation of A549 cells in a concentration-dependent manner, compared with the control group, and statistical significant difference was found between the two groups (P<0.01). The cell scratch experiment showed that the migration ability of A549 cells was reduced after treatment of curcumine for 24 hours, compared with the control group, and statistical significant difference was found between the two groups (P<0.01). Transwell assay showed that the invasiveness of A549 cells was decreased with the least amount of curcumine, compared with the control group, and statistical significant difference was found between the two groups (P<0.01). Western blotting showed that the expression of epidermal growth factor receptor (EGFR, P<0.01) and N-cadherin protein were decreased (P<0.01) and the expression of E-cadherin protein was increased (P<0.01) after treatment of 40 μg/ml of curcumine on A549 cells, compared with the control group, and statistical significant difference was found between the two groups.

Conclusion

Curcumine can inhibit the proliferation, migration and invasion of A549 cells probably through down-regulating the expression of EGFR and N-cadherin and regulating the expression of E-cadherin, and therefore reversing the process of epithelial stromal transformation.

Key words: Curcumine, Bronchogenic carcinoma, A549 cells, Migration, Invasion, EMT

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