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PD-ECGF, bFGF, and VEGF expression in non-small cell lung carcinomas and their association with lymph node metastasis
1Department of Oncological Diagnostics and Therapy, German Cancer Research Center, Heidelberg, Germany.
Abstract:
The angiogenic factors PD-ECGF, bFGF and VEGF were determined immunohistochemically in 168 non-small cell lung carcinomas to investigate whether the expression of these parameters is correlated with lymph node metastasis of patients. The expressions of the above mentioned factors was indeed associated with lymph node metastasis, but the results were not statistically significant. However, a combination of the factors PD-ECGF, bFGF and VEGF significantly improved the prognostic information. The number of tumors with lymph node involvement increased with the number of angiogenic factors. Only 43% of the patients had-lymph node involvement when all factors were negative whereas 77% showed metastasis when all factors were positive (one factor positive: 53%, two factors positive: 68). This result is statistically significant (p = 0.002, test for trend).