Isolation and Purification of Vascular Endothelial Growth Factor (VEGF) from Ascitic Fluid of Ovarian Cancer Patients

Sonali GHOSH, Putul MAITY

Department of Metabolic Regulation, Chittaranjan National Cancer Institute, Kolkata, India


Vascular Endothelial Growth Factor (VEGF) or Vascular Permeability Factor (VPF) is an angiogenic cytokine expressed by many human and animal tumors. Because of the importance of VEGF in animal tumors, we purified VEGF/VPF from ascitic fluid of ovarian cancer patients with heparin sepharose column. The purified protein gave protein bands of 37 and 26 kD, respectively in 12% SDS PAGE. The specificity of the purified protein was determined with dot blot, trans-immunoblot and ELISA using polyclonal goat anti-VEGF antibody (Santa Cruz Biotechnology). The vasodilatatory effect of the purified protein was confirmed by a vascular permeability assay on mouse. A polyclonal mouse antibody was raised against the purified protein, which recognized the same protein by ELISA, transimmunoblot and dot-blot analysis. It has been also found that the raised polyclonal antibody in mouse- and the commercial VEGF polyclonal antibody (Santa Cruz Biotechnology) both inhibited in vitrocell proliferation of human MCF-7 cell line. This study shows for the first time an effort to purify VEGF from human source. Pathology & Oncology Research, Vol 10, Nr 2, 104-108, 2004

Key words: VEGF; ascitic fluid; ovarian cancer

Received: Apr 22, 2004; accepted: May 21, 2004
Correspondence: Putul MAITY, Department of Metabolic Regulation, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road Kolkata 700026, India, Fax: 91-33-24757606; E-mail:

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