Abstract:
BACKGROUND:To the authors' knowledge, little is known to date regarding the prognostic relevance of measuring serum levels of vascular endothelial growth factor (VEGF), a potent stimulator of angiogenesis, in patients with colon carcinoma who undergo surgery. METHODS:Preoperative and postoperative VEGF serum levels were determined by enzyme-linked immunoadsorbent assay in 81 patients with colon carcinoma who were undergoing surgery. Fifty healthy individuals served to define normal VEGF serum levels. RESULTS:Preoperative VEGF serum levels were significantly higher in the group of patients with colon carcinoma (mean, 504.1 pg/mL +/- 223 pg/mL; range, 285-1390 pg/mL; 95% confidence interval [95%CI], 49 pg/mL) compared with the control group (mean, 78.1 pg/mL +/- 22 pg/mL; range, 40-110 pg/mL; 95%CI, 4.3 pg/mL; P < 0.001). Multiple regression analysis demonstrated a significant correlation (r) between preoperative VEGF serum levels and age (r = - 0.275; P = 0.013), Dukes stage (r = 0.488; P < 0.001), and carcinoembryonic antigen (CEA) levels (r = 0.285; P < 0.018). No significant correlation was found between preoperative VEGF serum levels and disease site, patient gender, tumor size, tumor grade, or performance status. Moreover, preoperative VEGF serum levels were significantly lower in patients who underwent curative surgery compared with patients who underwent noncurative surgery (443 pg/mL +/- 117 pg/mL vs. 821 +/- 353 pg/mL, respectively; P < 0.0001). Logistic regression analysis selected preoperative VEGF and CEA serum levels as the only good prognostic indicators of curative and noncurative surgery (P < 0.001; relative risk, 2.98 and 2.03, respectively). Furthermore, VEGF serum levels dropped significantly after surgery, with a further downward trend until the 30th postoperative day (P < 0.001). Stepwise regression analysis selected preoperative VEGF serum level as the only variable associated significantly with the prediction of both disease-specific survival and disease-free survival (P = 0.001). CONCLUSIONS:Preoperative serum VEGF levels may be useful for predicting outcome in patients with colon carcinoma who undergo surgery.
journal_name
Cancerjournal_title
Cancerauthors
De Vita F,Orditura M,Lieto E,Infusino S,Morgillo F,Martinelli E,Castellano P,Romano C,Ciardiello F,Catalano G,Pignatelli C,Galizia Gdoi
10.1002/cncr.11911subject
Has Abstractpub_date
2004-01-15 00:00:00pages
270-8issue
2eissn
0008-543Xissn
1097-0142journal_volume
100pub_type
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