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Chemoattractant-induced cell migration. The cell migration across filters with micropores was quantified in the presence/absence of the chemoattractant vascular endothelial growth factor (VEGF). The chemotactic coefficient was increased twofold in VEGF-treated primary HUVECs and hTERT-transfected HUVECs, but displayed no alterations in HSF (negative cell control). Both HUVEC types responded similarly. *P < 0.05 with respect to untreated cells, scale bar 100 μm
