title: Expression and correlation of CD44v6, vascular endothelial growth factor, matrix metalloproteinase-2, and matrix metalloproteinase-9 in Krukenberg tumor.
abstract: OBJECTIVE
  To explore the expression and correlation of CD44v6, vascular endothelial growth factor (VEGF), matrix metalloproteinase (MMP)-2 and matrix metalloproteinase (MMP)-9 in Krukenberg and primary epithelial ovarian carcinoma.
  
  
  METHODS
  The expressions of CD44v6, VEGF, MMP-2 and MMP-9 were detected by immunohistochemical method in 20 cases of normal ovarian tissues, 38 cases of Krukenberg tumor and 45 cases of primary epithelial ovarian carcinoma.
  
  
  RESULTS
  The expression of CD44v6 (primary epithelial ovarian carcinoma tissue vs normal ovarian tissue: chi(2) = 4.516, P = 0.034; Krukenberg tumor tissue vs normal ovarian tissue: chi(2) = 19.537, P = 0.001) and VEGF (primary epithelial ovarian carcinoma tissue vs normal ovarian tissue: P = 0.026; Krukenberg tumor tissue vs normal ovarian tissue: chi(2) = 22.895, P = 0.001) was significantly higher in primary epithelial ovarian carcinoma tissue and Krukenberg tumor tissue than in normal ovarian tissue. The positive expression rate of MMP-2 and MMP-9 was 0% in the normal ovarian tissue. The positive expression rate of CD44v6 (chi(2) = 10.398, P = 0.001), VEGF (chi(2) = 13.149, P = 0.001), MMP-2 (chi(2) = 33.668, P = 0.001) and MMP-9 (chi(2) = 38.839, P = 0.001) was remarkably higher in Krukenberg tumor than in primary epithelial ovarian carcinoma. The correlation of CD44v6, VEGF, MMP-2, and MMP-9 was observed in primary epithelial ovarian carcinoma and Krukenberg tumor.
  
  
  CONCLUSIONS
  CD44v6, VEGF, MMP-2, and MMP-9 are involved in ovarian carcinoma, gastric cancer and Krukenberg tumor. Detection of CD44v6, VEGF, MMP-2 and MMP-9 may contribute to the diagnosis of ovarian carcinoma, gastric cancer, and Krukenberg tumor.
authors.affiliation: Department of Gynecology, Tumor Hospital of Harbin Medical University, Harbin 150040, Heilongjiang Province, China. dr-lg911@163.com
authors.forename: Ge
authors.initials: G
authors.lastname: Lou
authors.forename: Ying
authors.initials: Y
authors.lastname: Gao
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Ning
authors.forename: Qi-Fan
authors.initials: QF
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000378:metabolism; D005260:Female; D006023:Glycoproteins / Q000378:metabolism*; D006801:Humans; D018960:Hyaluronan Receptors / Q000378:metabolism*; D007725:Krukenberg Tumor / Q000378:metabolism* / Q000473:pathology; D020778:Matrix Metalloproteinase 2 / Q000378:metabolism*; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism*; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000378:metabolism* / Q000473:pathology; D042461:Vascular Endothelial Growth Factor A / Q000378:metabolism*
chemical_list: D014408:Biomarkers, Tumor; C112697:CD44v6 antigen; D006023:Glycoproteins; D018960:Hyaluronan Receptors; D042461:Vascular Endothelial Growth Factor A; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9