We also transfected with si-GPR55 into A549 NSCLC cells, which have high endogenous GPR55 levels (new Additional file 4: Figure S3) and lower endogenous miR-675-5p levels (Figure 1D), and the expression of GPR55 in the cells determined by Western blotting. This evidence concerns the gene GPR55 and non-small cell lung carcinoma.