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ORIGINAL ARTICLE

Serum Vascular Endothelial Growth Factor (VEGF) and Interleukin-8 (IL-8) Levels in Small Cell Lung Cancer

, M.D., , Ph.D., , Ph.D., , M.D., , Ph.D. & , M.D.
Pages 492-496 | Published online: 11 Jun 2009
 

Abstract

This study was conducted to determine the value of the angiogenic serum factors, vascular endothelial growth factor (VEGF) and interleukin-8 (IL-8), in patients with small cell lung cancer (SCLC). These serum angiogenic factors were measured of 34 SCLC patients on the before and after chemotherapy in comparison with 20 healthy controls using ELISA method. Serum levels of VEGF and IL-8 were significantly increased in SCLC patients compared with healthy controls (p < 0.001). No statistically significant relationships was found between investigated elevated serum angiogenic parameters and various characteristics of patients and disease such as disease stage and tumor burden. Likewise, we also found no correlation between serum angiogenic factors. Cytotoxic therapy of patients was accompanied by unchanged serum levels of angiogenic factors. Contrary to serum IL-8, elevated serum levels of VEGF was determined as a prognostic factor for survival by univariate analysis (p = 0.05). Multivariate analysis revealed that independent prognostic factors of overall survival included only response to chemotherapy and weight loss (p < 0.001 for both). In conclusion, our data suggest that the angiogenic serum factors, VEGF and IL-8, are useful diagnostic factors, but not predictive and prognostic markers for overall survival in SCLC patients.

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