Figure 5.
Edema formation in the reverse Arthus reaction in the skin. 25 μg of rabbit anti–chicken egg albumin IgG was injected i.d. followed by 20 mg/kg body weight i.v. chicken egg albumin together with 100 μl Evans blue dye (6.25 mg/ml). Dorsal skins were harvested from C5aR (−/−) mice (striped bars) and their wild-type littermates (black bars) after 3 h and edema was evaluated as weight of 1 cm2 skin sections (A). In addition, edema was quantitated as enhanced microvascular permeability by extraction of extravasated Evan's blue dye with formamide from injected skin sections (B). Ab controls (Ab control) received Ab to chicken egg albumin intratracheally without i.v. injection of chicken egg albumin. Mice treated with PBS intratracheally followed by i.v. chicken egg albumin served as Ag controls (Ag control). Data are represented as mean ± SEM, n = 8–12 animals in each group. *P <0.001 (A), *P <0.0001 (B).

