Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C1519670 (tumor angiogenesis)
 6,052 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Tumor growth and metastasis are angiogenesis-dependent processes initiated and regulated by a number of cytokines. Vascular endothelial growth factor (VEGF) is a potent angiogenic protein with a selective mitogenic effect on vascular endothelial cells. Osteopontin (OPN) induces endothelial cell migration and upregulates endothelial cell migration induced by VEGF. To clarify the cooperative role of VEGF and OPN in tumor angiogenesis, we stained VEGF, OPN, and CD34 immunohistochemically in 87 cases of stage I non-small cell lung cancer (adenocarcinoma, 55, and squamous cell carcinoma, 32). Of the 87 patients studied, 27 patients had postoperative relapse and 60 patients did not. VEGF was found in 34 of 55 cases of adenocarcinomas and 14 of 32 squamous cell carcinomas, and OPN was found in 30 of 55 adenocarcinomas and 10 of 32 squamous cell carcinomas. In adenocarcinoma, microvessel counts of VEGF-positive and OPN-positive tumors were significantly higher than VEGF-negative and OPN-negative tumors, respectively, whereas in squamous cell carcinoma they were not. More importantly, patients with VEGF- and OPN-positive stage I lung adenocarcinoma had significantly worse prognosis as compared with other groups. Cooperation of OPN is important in VEGF-mediated tumor angiogenesis in stage I lung adenocarcinoma.
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PMID:Vascular endothelial growth factor and osteopontin in stage I lung adenocarcinoma. 1050 18

UFT is an oral 5-fluorouracil derivative drug that may improve postoperative survival in non-small cell lung cancer (NSCLC), and experimental studies have shown that UFT inhibits tumor angiogenesis. In the present study, therefore, the correlation between tumor angiogenesis (intratumoral microvessel density, IMVD) and the efficacy of UFT in 162 patients with pathologic stage I NSCLC was examined. For higher IMVD tumors (IMVD > or = 20, n = 80), the 5-year survival rate of UFT-treated patients (82.5%) was significantly higher than that of surgery-alone patients (61.8%, P = 0.032). For lower IMVD tumors (n = 82), however, there was no difference in the survival between these groups (5-year survival rates, 84.9% and 82.6%, respectively; P = 0.657). Multivariate analyses confirmed that postoperative UFT administration was effective for higher IMVD tumors (P = 0.046; relative risk [RR] and the 95% confidence interval [CI], 0.288 [0.084-0.979]), but not for lower IMVD tumors (P = 0.616; 0.726 [0.208-2.539]). Moreover, vascular endothelial growth factor (VEGF) status was also a predictive factor. For tumor showing strong VEGF expression (n = 63), UFT administration improved the survival (5-year survival rates of UFT-treated patients and surgery-alone patients, 84.6% and 60.0%, respectively; P = 0.048); for weakly VEGF-expressing tumors (n = 99), UFT administration did not influence the survival (5-year survival rates, 83.4% and 79.1%, respectively; P = 0.455). Multivariate analyses demonstrated that UFT administration seemed to be effective for strong VEGF tumors (P = 0.063; RR and the 95% CI, 0.234 [0.051-10.81]), but not for weak VEGF tumors (P = 0.456; 0.673 [0.293-1.900]). In conclusion, the efficacy of postoperative UFT administration in NSCLC was correlated with tumor angiogenesis.
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PMID:Angiogenesis and the efficacy of postoperative administration of UFT in pathologic stage I non-small cell lung cancer. 1507 98