Fig. 7From: Circular RNA circPLK1 promotes breast cancer cell proliferation, migration and invasion by regulating miR-4500/IGF1 axis CircPLK1 regulated IGF1 expression through sponging miR-4500. a–d The mRNA and protein expression of IGF1 were measured by qRT-PCR and western blot analyses in BT549 and HCC38 cells transfected with sh-NC, sh-circPLK1, sh-circPLK1 + anti-NC, or sh-circPLK1 + anti-miR-4500. ***P < 0.001Back to article page