title: Circulating form of human vascular adhesion protein-1 (VAP-1): decreased serum levels in progression of colorectal cancer and predictive marker of lymphatic and hepatic metastasis.
abstract: OBJECTIVE
  Vascular adhesion protein-1 (VAP-1) is an endothelial cell molecule that controls leukocyte tissue infiltration. Elevated serum soluble VAP-1 (sVAP-1) has been described in certain diseases with an inflammatory component. However, sVAP-1 expression or function has not been studied in colorectal cancer. The present study determined the relationships between preoperative serum sVAP-1 and clinicopathological features and prognosis in colorectal cancer.
  
  
  METHODS
  One hundred patients with histologically proven colorectal cancer and 33 normal volunteers were included. Preoperative serum was collected, and sVAP-1 levels were assayed by enzyme-linked immunosorbent assay.
  
  
  RESULTS
  Mean sVAP-1 level in patients was significantly higher than in controls, and decreased with disease progression. Mean sVAP-1 level was significantly correlated with venous invasion, lymph node metastasis, distant metastasis including hepatic metastasis, and advanced TNM classification. Furthermore, sVAP-1 was an independent marker for predicting lymph node or hepatic metastasis. Prognosis of patients with a lower sVAP-1 level was significantly worse than those with elevated sVAP-1.
  
  
  CONCLUSIONS
  Preoperative low sVAP-1 level is associated with poor prognosis in colorectal cancer. Measuring serum sVAP-1 may provide valuable information in predicting patients with lymph node or hepatic metastasis.
authors.affiliation: Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Toiyama
authors.forename: Chikao
authors.initials: C
authors.lastname: Miki
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Inoue
authors.forename: Aya
authors.initials: A
authors.lastname: Kawamoto
authors.forename: Masato
authors.initials: M
authors.lastname: Kusunoki
mesh_terms: D000368:Aged; D006631:Amine Oxidase (Copper-Containing) / Q000097:blood*; D014408:Biomarkers, Tumor / Q000097:blood*; D015815:Cell Adhesion Molecules / Q000097:blood*; D015179:Colorectal Neoplasms / Q000097:blood* / Q000401:mortality / Q000473:pathology*; D018450:Disease Progression; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008113:Liver Neoplasms / Q000097:blood / Q000556:secondary*; D016015:Logistic Models; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011237:Predictive Value of Tests; D011379:Prognosis
chemical_list: D014408:Biomarkers, Tumor; D015815:Cell Adhesion Molecules; C076668:AOC3 protein, human; D006631:Amine Oxidase (Copper-Containing)