Metformin inhibits the development and metastasis of ovarian cancer

Wu,Buchu; Li,Shu; Sheng,Lili; Zhu,Jing; Gu,Liying; Shen,Haoran; La,Duanduan; Hambly,Brett  D.; Bao,Shisan; Di,Wen

doi:10.3892/or.2012.1890

Metformin inhibits the development and metastasis of ovarian cancer

Authors:
- Buchu Wu
- Shu Li
- Lili Sheng
- Jing Zhu
- Liying Gu
- Haoran Shen
- Duanduan La
- Brett D. Hambly
- Shisan Bao
- Wen Di
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Affiliations: Department of Obstetrics and Gynecology, Ren-Ji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China, Department of Obstetrics and Gynecology, Rui-Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China, Discipline of Pathology, School of Medical Science and Bosch Institute, University of Sydney, Australia
Published online on: June 29, 2012 https://doi.org/10.3892/or.2012.1890
Pages: 903-908

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Abstract

The aim of this study was to investigate the role of metformin in the regulation of development and metastasis of ovarian carcinoma cell lines in vitro and ovarian cancer in a nude mouse model in vivo. The effects of metformin on the ability of two high-metastatic potential human ovarian cancer cell lines (SKOV3 and HO8910-PM) to adhere, invade and migrate in vitro were observed by means of a cell adhesion test, cell invasion test and cell migration test. The size and number of the inoculated and metastatic tumours in vivo in a nude mouse were determined following intraperitoneal injection of metformin. Furthermore, the extent of angiogenesis (vWF) and macrophage infiltration in the tumour were determined. Proliferation, migration, invasion and adhesion of ovarian cancer cells were significantly inhibited (P<0.05) in a dose-dependent manner in vitro. In addition, metformin inhibited hepatic, intestinal and lung metastasis (P<0.05), with no weight loss in vivo, consistent with decreased expression of vWF and macrophage infiltration. Our data suggest that metformin inhibits the development and metastasis of ovarian cancer by reducing cellular-ECM interactions, neovascularisation and macrophage infiltration.

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