To determine if circSATB2 or miR-326 could regulate FSCN1 and GAB1 expression, we detected FSCN1 and GAB1 expression in circSATB2- and miR-326 knockdown and overexpressing NSCLC cells via qPCR (sequence of primers were shown in Additional file 2: Table S1). Here, GAB1 is linked to non-small cell lung carcinoma.