title: Plasma concentrations of VCAM-1 and PAI-1: a predictive biomarker for post-operative recurrence in colorectal cancer.
abstract: This prospective study used antibody suspension bead arrays to identify biomarkers capable of predicting post-operative recurrence with distal metastasis in patients with colorectal cancer. One hundred colorectal cancer patients who underwent surgery were enrolled in this study. The median follow-up period was 3.9 years. The pre-operative plasma concentrations of 24 angiogenesis-related molecules were analyzed with regard to the TNM stage and the development of post-operative recurrence. The concentrations of half of the examined molecules (13/24) increased significantly according to the TNM stage (P < 0.05). Meanwhile, a multivariate logistic regression analysis revealed that the concentrations of vascular cell adhesion molecule 1 (VCAM-1) and plasminogen activator inhibitor-1 (PAI-1) were significantly higher in the post-operative recurrence group. The VCAM-1 and PAI-1 model discriminated post-operative recurrence with an area under the curve of 0.82, a sensitivity of 0.75, and a specificity of 0.73. A leave-one-out cross-validation was applied to the model to assess the prediction performance, and the result indicated that the cross-validated error rate was 12.5% (12/96). In conclusion, our results demonstrate that antibody suspension bead arrays are a powerful tool to screen biomarkers in the clinical setting, and the plasma levels of VCAM-1 and PAI-1 together may be a promising biomarker for predicting post-operative recurrence in patients with colorectal cancer.
authors.affiliation: Medical Oncology, National Cancer Center Hospital, Tokyo, Japan.
authors.forename: Yasuhide
authors.initials: Y
authors.lastname: Yamada
authors.forename: Tokuzo
authors.initials: T
authors.lastname: Arao
authors.forename: Kazuko
authors.initials: K
authors.lastname: Matsumoto
authors.forename: Vinita
authors.initials: V
authors.lastname: Gupta
authors.forename: Woei
authors.initials: W
authors.lastname: Tan
authors.forename: Joe
authors.initials: J
authors.lastname: Fedynyshyn
authors.forename: Takako E
authors.initials: TE
authors.lastname: Nakajima
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Shimada
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Hamaguchi
authors.forename: Ken
authors.initials: K
authors.lastname: Kato
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Taniguchi
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Saito
authors.forename: Takahisa
authors.initials: T
authors.lastname: Matsuda
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Moriya
authors.forename: Takayuki
authors.initials: T
authors.lastname: Akasu
authors.forename: Shin
authors.initials: S
authors.lastname: Fujita
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Yamamoto
authors.forename: Kazuto
authors.initials: K
authors.lastname: Nishio
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000097:blood*; D015179:Colorectal Neoplasms / Q000097:blood* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000097:blood*; D009367:Neoplasm Staging; D017395:Plasminogen Activator Inhibitor 1 / Q000097:blood*; D019010:Vascular Cell Adhesion Molecule-1 / Q000097:blood*
chemical_list: D014408:Biomarkers, Tumor; D017395:Plasminogen Activator Inhibitor 1; D019010:Vascular Cell Adhesion Molecule-1