Leukocyte recruitment in response to thioglycollate is impaired in S100A10^−/− mice. (A) Mice were injected intraperitoneally with thioglycollate, and the total peritoneal leukocytes were collected at various time points by peritoneal lavage. Resident leukocytes were collected from unstimulated peritoneum and are represented as t = 0. Cell differentials of the total peritoneal leukocytes were determined by May-Grünwald-Giemsa staining and macrophage (B) and neutrophil (C) content determined. Statistical analysis was performed by Student t test: *P < .05; **P < .01. No significant difference was observed between resident leukocytes from WT and S100A10^−/− (KO) mice (P < .124).