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Fig. 2 | BMC Immunology

Fig. 2

From: Characteristics of the specific humoral response in patients with advanced solid tumors after active immunotherapy with a VEGF vaccine, at different antigen doses and using two distinct adjuvants

Fig. 2

Humoral response in pre-clinical models. Specific IgG antibodies were detected by ELISA using GST-hVEGF as coating antigen (a, b, d and f). The ability of animal sera antibodies to block VEGF/VEGFR2 interaction was determined using a competitive ELISA, where a soluble VEGFR2 competes with diluted serum in plates coated with GST-hVEGF (c, e and g). CIGB-247 combinations using VSSP or aluminum phosphate as adjuvants were administered weekly (eight vaccinations) or bi-weekly (four vaccinations) respectively. Horizontal bars represent the mean values of antibody titer or blocking activity, which are shown for each group. p-Values were calculated according to unpaired t-test. Reference dose (A + V): 400 μg of antigen + 200 μg of VSSP; (¼Ag + ½ V): 100 μg of antigen + 100 μg of VSSP; (¼Ag + V): 100 μg of antigen + 200 μg of VSSP; (Ag + Al): 400 μg of antigen + aluminum phosphate

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BMC Immunology

ISSN: 1471-2172

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