The expression of EGFL6 was detected in a panel of human ovarian cancer cells (CAOV3, COV-362, COV-504, EFO-27, ES-2, OV-90, SKOV3, and TOV-21G), and EGFL6 expression in HUVECs served as a negative control (Figure 1B). Here, EGFL6 is linked to ovarian cancer.