title: Significance of serum c-erbB-2 oncoprotein, insulin-like growth factor-1 and vascular endothelial growth factor levels in ovarian cancer.
abstract: OBJECTIVE
  Our aim was to determine the predictive values of serum levels of several growth factors in ovarian cancer, including soluble c-erbB-2 oncoprotein, insulin-like growth factor-1 (IGF-1) and vascular endothelial growth factor (VEGF).
  
  
  BACKGROUND
  Previous studies have shown that growth factors play an important role in carcinogenesis.
  
  
  METHODS
  Two groups were established. One of them was the malignant group which included 41 patients with ovarian carcinoma and the other was the control group that was made up of 28 healthy volunteers. Preoperative serum samples were obtained from the patients, and c-erbB-2, IGF-1 and VEGF levels were measured in these samples using ELISA. Serum CA-125 levels were also determined, by chemiluminescent microparticle immunoassay.
  
  
  RESULTS
  VEGF levels of the malignant group were significantly higher than those of the control group (p < 0.01). CA-125 levels were also significantly higher than the in control group (p < 0.001). Area under the ROC curve (AUC) was 0.982 for CA-125, 0.780 for VEGF, 0.603 for c-erbB-2, and 0.467 for IGF-1 in differentiating cancers from controls.
  
  
  CONCLUSIONS
  Serum VEGF levels might be a predictor for diagnosis in ovarian cancer patients, while serum c-erbB-2 and IGF-1 levels do not have a clinical significance in terms of ovarian cancer (Tab. 1, Fig. 1, Ref. 46).
authors.forename: T
authors.initials: T
authors.lastname: Akcay
authors.forename: O
authors.initials: O
authors.lastname: Yasar
authors.forename: M A
authors.initials: MA
authors.lastname: Kuseyri
authors.forename: Y
authors.initials: Y
authors.lastname: Dincer
authors.forename: K
authors.initials: K
authors.lastname: Aydinli
authors.forename: A
authors.initials: A
authors.lastname: Benian
authors.forename: E
authors.initials: E
authors.lastname: Balcan
authors.forename: H
authors.initials: H
authors.lastname: Erenel
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000097:blood; D018394:CA-125 Antigen / Q000097:blood; D002277:Carcinoma / Q000097:blood*; D016022:Case-Control Studies; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007334:Insulin-Like Growth Factor I / Q000378:metabolism*; D036341:Intercellular Signaling Peptides and Proteins; D008875:Middle Aged; D015513:Oncogene Proteins; D010051:Ovarian Neoplasms / Q000097:blood*; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000097:blood*; D042461:Vascular Endothelial Growth Factor A / Q000097:blood*
chemical_list: D014408:Biomarkers, Tumor; D018394:CA-125 Antigen; D007334:Insulin-Like Growth Factor I; D036341:Intercellular Signaling Peptides and Proteins; D015513:Oncogene Proteins; D018719:Erb-b2 Receptor Tyrosine Kinases; D042461:Vascular Endothelial Growth Factor A; C434665:herstatin
keywords: CA-125; c-erbB-2; insulin-like growth factor-1; ovarian cancer.; vascular endothelial growth factor