ALX1 regulates Snail expression. A. Quantification of ZEB1, Slug, Snail and Twist in H1975 overexpressing ALX1 by qRT-PCR. B. Western blot of ZEB1, Slug, Snail and Twist in H1975 overexpressing ALX1. C. Quantification of ZEB1, Slug, Snail and Twist in H460 silencing ALX1 by qRT-PCR. D. Western blot of ZEB1, Slug, Snail and Twist in H460 silencing ALX1. E. Relative luciferase activity of Snail in H1975 overexpressing ALX1. F. Relative luciferase activity of Snail in H460 silencing ALX1. **P<0.01 based on the Student t test. Error bars, SD.