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Updated: Apr 28, 2026
Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies
Published on: September 15, 2023
Relationship between serum soluble vascular adhesion protein-1 level and gastric cancer prognosis
Muhammet A Kaplan1, Mehmet Kucukoner, Ali Inal
1Department of Medical Oncology, School of Medicine, Dicle University, Diyarbakir, Turkey.
Background:
Vascular adhesion protein-1 (VAP-1) is a glycoprotein that mediates tissue-selective lymphocyte adhesion in a sialic acid-dependent manner. The prognostic importance of VAP-1 was determined in various human cancers. The aim of this study was to determine the relationship between VAP-1 and prognosis of gastric cancer.
Materials And Methods:
Serum of operable and metastatic gastric cancer patients was collected before treatment (surgery, radiotherapy, and/or chemotherapy). VAP-1 levels were measured by enzyme-linked immunosorbent assay.
Results:
A total of 86 gastric cancer patients (32 female, 54 male) were included in the study. Curative surgical treatment was performed in 54 (62.8%) patients. The mean serum VAP-1 level was 324.4 pg/ml and significantly higher in operable gastric cancer patients compared to metastatic gastric cancer patients (383.1 ± 173.5 vs. 225.2 ± 113.9 pg/ml; p < 0.001). When a cut-off value for VAP-1 of 218.8 pg/ml was determined by receiver operating characteristic (ROC) curves for presence of metastasis, sensitivity and specificity were 81.5 and 65.6%, respectively. Patients with decreased VAP-1 levels had a significantly poorer prognosis compared to patients with increased serum VAP-1 levels (median survival 8.2 vs. 23.5 months; p < 0.001). Multivariate analysis showed that VAP-1 is an independent prognostic factor of gastric cancer (odds ratio 2.3, 95% confidence interval 1.1-4.9; p = 0.032).
Conclusion:
A low serum VAP-1 level may be an indicator of poor prognosis in gastric cancer. This study demonstrated that low serum VAP-1 levels are associated with poor prognosis in gastric cancer patients.
