Abstract
Background
The purpose of this study is to evaluate serum levels of vascular endothelial growth factor (VEGF), pigment epithelium–derived factor (PEDF), tumor necrosis factor alpha (TNF-α), and progranulin in patients with gastric cancer (GC) and precancerous lesions (PCL) and to determine the usefulness of these markers as diagnostic biomarkers in these diseases.
Method
A total of 32 GC patients, 35 PCL patients, and 23 healthy controls participated in the study. The serum levels of VEGF, PEDF, TNF-α, and progranulin were measured by enzyme-linked immunosorbent assay (ELISA).
Results
The mean serum VEGF levels were 30.6 ± 12.98 pg/mL in GC, 18.2 ± 5.72 pg/mL in PCL, and 17.5 ± 5.59 pg/mL in controls. GC VEGF levels were significantly higher than both PCL and control groups (p < 0.001). The mean serum PEDF levels were 1516.1 ± 993.8 pg/mL in GC, 1039.1 ± 1002.3 pg/mL in PCL, and 767.5 ± 661.5 pg/mL in controls. The serum PEDF level in the GC group was significantly higher than that in both PCL and control groups (p = 0.004 and p = 0.038, respectively). The mean serum TNF-α levels were 46.7 ± 14.82 pg/mL in GC, 38.4 ± 11.89 pg/mL in PCL, and 33.8 ± 12.77 pg/mL in controls. There was a significant difference between GC and controls (p = 0.022) in TNF-α levels. The mean serum progranulin levels in GC were 2496.6 ± 737.8 pg/mL, 2332.0 ± 482.1 pg/mL in PCL, and 1288.7 ± 830.9 pg/mL in controls. Progranulin levels in both GC and PCL groups were significantly higher than that in the control group (p < 0.001 for both).
Conclusion
There were significant differences among patients with GC and PCL and healthy controls in terms of serum VEGF, PEDF, TNF-α, and progranulin levels.
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All procedures performed involving human participants were in accordance with the ethical standards of the institutional research committee (Keçiören Training and Research Hospital with reference number 01.2018/1601) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
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Aksoy, E.K., Akpınar, M.Y., Doğan, Ö. et al. Clinical Significance of Serum Vascular Endothelial Growth Factor, Pigment Epithelium–Derived Factor, Tumor Necrosis Factor Alpha, and Progranulin Levels in Patients with Gastric Cancer and Gastric Precancerous Lesions. J Gastrointest Canc 50, 537–542 (2019). https://doi.org/10.1007/s12029-019-00251-8
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DOI: https://doi.org/10.1007/s12029-019-00251-8