PT - JOURNAL ARTICLE AU - KIM, HYUN JUNG AU - HEO, KYUN TI - YYB-101, a Humanized Antihepatocyte Growth Factor Monoclonal Antibody, Inhibits Ovarian Cancer Cell Motility and Proliferation AID - 10.21873/anticanres.14818 DP - 2021 Feb 01 TA - Anticancer Research PG - 671--678 VI - 41 IP - 2 4099 - http://ar.iiarjournals.org/content/41/2/671.short 4100 - http://ar.iiarjournals.org/content/41/2/671.full SO - Anticancer Res2021 Feb 01; 41 AB - Background/Aim: Hepatocyte growth factor (HGF) acts as a key regulator in promoting ovarian cancer metastasis. Previously, we observed that YYB-101, a humanized anti-HGF antibody, effectively inhibits ovarian cancer cell migration, invasion, and progression. Here, we evaluated the signaling mechanisms affected by YYB-101 that are important in ovarian cancer cell progression. Materials and Methods: Using cell migration, invasion and proliferation assays, we evaluated the effects of YYB-101 on A2780/luc and SKOV3 cells. The effects of YYB-101 on signaling molecules were determined by immunocytochemistry and immunoblot analysis. Results: YYB-101 inhibited HGF-induced ovarian cancer cell motility by down-regulating paxillin phosphorylation and actin-cytoskeleton rearrangement. Also, YYB-101 inhibited ovarian cancer cell proliferation by reducing c-MET phosphorylation and activating apoptosis in vitro and in vivo. These effects were significantly enhanced by combining YYB-101 treatment with paclitaxel, a standard chemotherapy drug. Conclusion: YYB-101 can be examined as a new therapeutic agent for the treatment of patients with ovarian cancer.