Isolation of neutrophils

LC Linda E. Cox
KW Kai Walstein
LV Lena Völlger
FR Friederike Reuner
AB Alexandra Bick
AD Annika Dötsch
AE Andrea Engler
JP Jürgen Peters
MK Maren von Köckritz-Blickwede
SS Simon T. Schäfer
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Primary blood-derived neutrophils were isolated from fresh blood by density gradient centrifugation using Polymorphprep™ (Progen Biotechnik, Heidelberg, Germany), as described previously [18]. For in vitro NET formation assays, the neutrophils were seeded on poly-L-lysine-coated glass slides in 24-well plates at a concentration of 5 × 105 cells per well (250 μl) in RPMI 1640 medium (Thermo Fisher Scientific Inc., Waltham, MA) at 37 °C and 5% CO2, and NET formation was analyzed after incubation for 2 and 4 h, respectively.

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