HGF and ovarian cancer: The levels of HGF secreted by the A2780/luc, OVCAR-3, SKOV3, Caov-3, and JHOC-5 ovarian cancer cells into the culture media measured using enzyme-linked immunosorbent assay (ELISA) were 794,246.0, 90.5, 415.4, 1,140.4, and 368.1 pg/mL, respectively (Figure S1).