Cytokine (pg/ml) |
Normal |
T1N0Mx |
TNF-α |
5.2 ± 1.3 |
21.9 ± 8.1* |
IL-12 |
N.D. |
43.4 ± 21.1*** |
IL-10 |
N.D. |
116.1 ± 42.1*** |
Blood samples (10/20 ml) were obtained at routine procedures before surgery after informed consent from patients classified in stage I (T1N0Mx) and from women free of illness (Normal). Sera were separated and heat-inactivated at 56°C for 30 min and stored at -20°C. Cytokine levels were determined by ELISA. Results are expressed as mean ± S.E.M. of 4 experiments. *p<0.01; ***p<0.0001 vs. normal sera. N.D: not detected |
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