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TC-derived soluble factors modified neutrophils’ kinetic properties.

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posted on 28.06.2018, 17:30 authored by Maria Rosaria Galdiero, Gilda Varricchi, Stefania Loffredo, Claudio Bellevicine, Tiziana Lansione, Anne Lise Ferrara, Raffaella Iannone, Sarah di Somma, Francesco Borriello, Eduardo Clery, Maria Triassi, Giancarlo Troncone, Gianni Marone

Neutrophils were stimulated with a TC-CM or the control medium for 18 hours. Within this time window, digital phase contrast images of 15 fields/well were captured every 15 minutes via a 20× objective in the Operetta high-content imaging system. PhenoLOGIC (PerkinElmer) was employed for image segmentation and to calculate the single-cell kinetic properties (A), accumulated distance, (B) speed and straightness (C) in dedicated analysis sequence. The results were expressed as mean ± SEM of six independent experiments; ***p < 0.005; **p < 0.01; *p < 0.05. D-E. Timepoint analyses of time-dependent properties such as current step size (D) and current speed (E) illustrating dynamic changes of the behavior of neutrophils (in presence or absence of TC-CMs) in function of the elapsed time from treatment. The results were expressed as mean ± SEM of six independent experiments; ****p < 0.001.

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