Figure 10From: Acute-Phase Protein α1-Antitrypsin Inhibits Neutrophil Calpain I and Induces Random MigrationComparison of Ca2+ mobilization by AAT in Ca2+−free versus Ca2+− containing buffer. Neutrophils loaded with the fluorescent Ca2+ indicator Fluo-3 were measured flow cytometrically in a buffer containing 1 mmol/L Ca2+ (A, C) or Ca2+− free buffer containing 1 mmol/L EGTA (B, D). Measurement was as described in Materials and Methods and in Figure 4. The black curves indicate the median fluorescence of neutrophils over time. The arrows indicate addition of 1 mg/mL (A, B) or 2 mg/mL (C, D) AAT.Back to article page