Table 1. Class I-restricted peptide vaccines inhibit allergic airway inflammation and skew BAL cytokine profiles.
Allergen | Vaccine | Total cells (×10−3) |
Eosinophils (×10−3) |
Neutrophils (×10−3) |
%Th1 | %Th2 | IFN-γ (pg/ml) |
IL-5 (pg/ml) | |
---|---|---|---|---|---|---|---|---|---|
1 | PBS | PBS | 53.2 ± 13.0 | 3.5 ± 1.1 | 6.1 ± 1.4 | 6.6 ± 0.5 | 0.1 ± 0.1 | 19.9 ± 1.7 | 175 ± 57.0 |
2 | OVA | PBS | 242 ± 73.2 | 76.3 ± 16.1 | 32.5 ± 5.8 | 5.4 ± 0.5 | 1.7 ± 0.2 | 31.0 ± 2.0 | 762 ± 158 |
3 | OVA | CASAC+Anti- CD40+SIINFEKL |
171 ± 38.0 | 32.7 ± 4.5* | 24.8 ± 4.9 | 6.5 ± 0.6 | 0.8 ± 0.2* | 186 ± 36.5*** | 1662 ± 330* |
4 | OVA | CASAC+peptide 25+SIINFEKL |
127 ± 24.4 | 35.5 ± 6.2* | 23.9 ± 3.9 | 14.2 ± 2.1** | 0.8 ± 0.2* | 44.2 ± 4.3* | 560 ± 145 |
IFN-γ, interferon-γ; IL-5, interleukin-5; PBS, phosphate-buffered saline.
Infl ammatory cell numbers and cytokine profi les from BAL CD4 cells in mice sensitized (400 μg OVA/alum) and challenged with OVA, and vaccinated with SIINFEKL peptide in CASAC adjuvant containing either anti-CD40 or an irrelevant class II helper peptide (peptide 25).
P < 0.05
P < 0.01
P < 0.001, all in comparison to group 2. Results are from groups of 6 mice. Similar results were obtained in 3 independent experiments.