scholarly journals The Role of Vascular Endothelial Growth Factorin Thrombocytosis in Colorectal Cancer Patients

2018 ◽  
Vol 2 (2) ◽  
pp. 1-7
Author(s):  
Subandrate Subandrate ◽  
Dwi Indira Setyorini ◽  
Mediarty Mediarty ◽  
Irsan Saleh

Backgorund: Colorectal cancer was included in a group of cancer with various complications. One complication that was often a cause of morbidity and mortality was thrombocytosis. In colorectal cancer, the incidence of thrombocytosis associated with the formation of blood vessels around the tumor or angiogenesis. Factors that played an important role in angiogenesis was vascular endothelial growth factor (VEGF). Methods: This study was an observational analytic research in colorectal cancer patients to determine the correlation levels of platelets and serum VEGF levels. A total of 33 patients with colorectal cancer at the Palembang Mohammad Hoesin Hospital be research subjects to examine the levels of platelets and levels of VEGF. The level of serum VEGF was performed using ELISA technique from SIGMA®. Results: The average level of the patient's platelets was281,090.9±105,860.8/mm3.  In this study, two patients (6.06%) have thrombocytosis.The average serum levels of VEGF research subjects were 221.2 ± 152.8 pg/mL.Correlation test of levels of serum VEGF and platelets levels showed the value of p=0.040 (p> 0.05) and r = 0468. Conclusions: Thus, it can be concluded that in this research serum VEGF levels are almost always causes an increase in platelet levels in patients with colorectal cancer.

2011 ◽  
Vol 4 ◽  
pp. CGM.S7113 ◽  
Author(s):  
Ozgur Kemik ◽  
Ahu Sarbay Kemik ◽  
Aziz Sümer ◽  
Sevim Purisa ◽  
A. Cumhur Dulger ◽  
...  

Background The aim of the present study was to determine whether serum vascular endothelial growth factor (VEGF) can provide prognostic information independent of carcinoembryonic antigen levels in patients undergoing curative surgery. Methods Serum samples were collected from 158 patients with colorectal cancer and from 100 controls. Serum and tissue levels of VEGF were measured by enzyme-linked immunosorbent assay. Serum VEGF levels in colorectal cancer patients were compared with those in healthy controls, and we retrospectively assessed the association between serum VEGF levels and clinicopathologic findings and survival. Results VEGF expression was significantly higher in colorectal cancer tissue compared with nontumor tissue. Mean serum VEGF levels in patients were significantly higher than those in controls, and significantly higher in patients with large tumors, lymph node involvement, and distant metastases. Conclusion Elevated serum VEGF was significantly associated with poor survival, but was only an independent risk factor for poor survival in Stage II and/or III disease. Elevated serum VEGF is significantly associated with development of colorectal cancer, and lymph or distant invasive phenotypes and survival, especially in Stage II and III patients.


2001 ◽  
Vol 19 (1) ◽  
pp. 8-12 ◽  
Author(s):  
Stefano Cascinu ◽  
Elena Del Ferro ◽  
Marco Ligi ◽  
Maria Pia Staccioli ◽  
Paolo Giordani ◽  
...  

2014 ◽  
Vol 32 (3_suppl) ◽  
pp. 497-497 ◽  
Author(s):  
Michela Del Prete ◽  
Mario Scartozzi ◽  
Tiziana Prochilo ◽  
Luca Faloppi ◽  
Riccardo Giampieri ◽  
...  

497 Background: Although a demonstrated clinical efficacy, a non negligible proportion of colorectal cancer patients does not seem to benefit from regorafenib and are consequently exposed to unnecessary toxicity. LDH serum levels represent an indirect marker of tumour hypoxia, neo-angiogenesis and worse prognosis in many tumour types. In colorectal cancer LDH showed a correlation with treatment outcome for patients receiving antiangiogenetic treatment, thus suggesting a possible interaction with the activity profile of these drugs. We analyzed the role of LDH serum levels in predicting clinical outcome for pre-treated metastatic colorectal cancer patients receiving regorafenib. The final aim was to individuate a potentially reliable and easy to use marker for patients stratification. Methods: 118 colorectal cancer patients treated with regorafenib were available for our analysis. For all patients, LDH values were collected within one month before the procedure and after treatment end. LDH cutoff value was determined by ROC curve analysis, patients were then divided into two groups (A and B, below and above cut-off level respectively). Patients were also classified according to the variation in LDH serum levels pre- and post-treatment (increased patients vs. decreased patients). Results: Patients in group A and B proved homogeneous for all clinical characteristics analyzed. In group A patients median progression free survival (PFS) was 3.18 months, whereas it was 1.87 months in group B patients (p = 0.0018). Median overall survival (OS) was 6.23 months and 3.28 months in group A and B respectively (p = 0.048). Significant differences were not noted among the 2 groups for response rate. All the other clinical variables analyzed failed to show any correlation with patients outcome. Conclusions: Our observations seem to suggest a role of LDH as a marker of clinical outcome in colorectal cancer patients receiving regorafenib. We can then speculate that high LDH patients may not be optimal candidates for regorafenib. After further confirmation in larger trial, these findings may be relevant for a better patients stratification and selection.


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