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Updated: Mar 5, 2026

Spheroid Assay to Measure TGF-β-induced Invasion
Published on: November 16, 2011
TGF-β1 promotes human gastric carcinoma SGC7901 cells invasion by inducing autophagy
1Department of General Surgery, Beijing Chao-Yang Hospital, Capital Medical Univerisity, Beijing, China. limingzhe0213@163.com.
Objective:
To investigate the role of TGF-b1 in autophagy and invasion ability in human gastric carcinoma cell line SGC7901.
Materials And Methods:
Cultured SGC7901 cells were treated with different concentrations of TGF-b1 for 24 h. The protein expression levels of autophagy relative marker LC3 and Beclin1 were detected by Western blot. The effect of TGF-b1 on invasion ability of SGC7901 cells was detected with transwell method.
Results:
The results demonstrated that TGF-b1 was able to induced autophagy of SGC7901 cells in a dose-dependent manner. Autophagy inhibitor 3-MA could inhibit TGF-b1 upregulated autophagy. Furthermore, TGF-b1 significantly enhances the invasion ability of SGC7901 cells. However, autophagy inhibitor 3-MA could effectively reverse this process.
Conclusions:
TGF-b1 enhances SGC7901 cells migration by inducing autophagy.
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