We first detected the expression level of circLARP4 in GC cell lines by qRT-PCR and found circLARP4 was downregulated in GC cell lines compared with GES-1 cells but had no correlation with the expression of miR-424 and LATS1 in GC cells (Additional file 4: Figure S3b). The gene discussed is LATS1; the disease is gastric cancer.