Cancer cell migration was assessed by using the OrisTM Cell migration kit (Platypus Technology, Madison, WI), as previously described [38 (link)]. MDA-MB-231- fibroblast or macrophage conditioned media (100 μl) with or without 0.1 uM reparixin (MCE, Monmouth Junction, NJ) and anti-IL-8 antibodies (R&D Systems, 30 μg/ml) was added once the cancer cells had attached. Migration and proliferation assays using CIM-plates (Roche, Indianapolis, IN) and the RTCA system (ACEA Bioscience, San Diego, CA) were performed as previously described [47 (link)].
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