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Figure 6 | Arthritis Research & Therapy

Figure 6

From: Modulation of monosodium urate crystal-induced responses in neutrophils by the myeloid inhibitory C-type lectin-like receptor: potential therapeutic implications

Figure 6

MICL modulates MSU-induced calcium mobilization in human neutrophils. (A) Human neutrophils (10 × 106 cells/ml) were preincubated with Fura-2AM (1 µM) for 30 min at 37°C. The extracellular probe was removed by washing in HBSS, and the cells were resuspended at 5 × 106 cells/ml. Anti-MICL antibody (clone 50C1, 2 μg/ml) or IgG2a isotype was added for 5 min. Cells were transferred to a thermostat-controlled (37°C) cuvette compartment of an SLM 8000 spectrofluorometer. Calcium mobilization was measured following the addition of 1 mg/ml MSU at 37°C. Fluorescence was monitored at an excitation wavelength of 340 nm and an emission wavelength of 510 nm. The internal calcium concentrations were calculated as described by Grynkiewicz et al. [16]. This result is representative of four independent experiments.

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