Affiliations: Colorectal Research Chair, Department of Surgery, King Khalid University Hospital, College of Medicine, King Saud University, Riyadh 11472, Saudi Arabia, Prince Naif Health Research Centre, King Saud University, Riyadh 11472, Saudi Arabia, Department of Pathology and Laboratory Medicine, College of Medicine, King Saud University Medical City, Riyadh 11472, Saudi Arabia, Department of Immunology, King Saud University Medical City, Riyadh 11472, Saudi Arabia
Published online on:October 8, 2021https://doi.org/10.3892/mco.2021.2413
Article Number: 251
Views: 0 (Spandidos Publications: | PMC Statistics: )
Metrics: Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )
The heterogenous nature of colorectal cancer (CRC) highlights the need for a better understanding of the growth factors that affect tumour growth and cancer progression. The aim of the present study was to evaluate the role of epidermal growth factor (EGF), vascular endothelial growth factor (VEGF) and hepatocyte growth factor (HGF) in the early (I and II) and late (III and IV) stages of CRC. The serum levels and mRNA expression (n=30) of the aforementioned growth factors were measured and immunohistochemistry (n=20) was performed in patients with CRC. Histological examination revealed comparable distribution of early‑stage [I: 8 (26.7%) and II: 7 (23.3%)] and late‑stage [III: 8 (26.7%) and IV: 7 (23.3%)] CRC. The mean serum concentrations of VEGF during the early (152.9±14.5 vs. 88.39±3.99 pg/ml; P=0.001) and late (182.7±25.8 vs. 88.39±3.99 pg/ml; P=0.002) stages were significantly higher compared with those in controls. Similarly, the mean serum concentrations of EGF in the early (409.4±7.96 vs. 153.7±13.8 pg/ml; P=0.05) and HGF in the late (90.4±17.4 vs. 56.9±4.97 pg/ml; P=0.05) stages were significantly higher compared with those in controls. The serum concentrations of VEGF, EGF and HGF were comparable between the early and late stages of CRC. Compared to normal tissues, the mRNA expression of both VEGF (P<0.001) and HGF (P<0.01) was upregulated in early‑stage and downregulated in late‑stage CRC. The expression of EGF remained significantly elevated during both the early and late stages of CRC (P<0.01). Histopathological analyses confirmed increased expression of VEGF in cancerous tissues compared with that in normal tissues. The present study emphasized the need for monitoring the serum levels and tissue expression of growth factors to fully elucidate their role in patients with CRC.
Something has gone wrong
HTTP Error 400
Well this is embarrassing. Something has gone wrong. Hopefully it is a transient error that will go away if you retry.
If the problem persists if you email our System Administrators letting them know what you were doing and telling them it was because:
Exception evaluating SpringEL expression: "dispArt?.images" (template: "article" - line 384, col 9)