Abstract:Upon inflammation, leukocytes leave the circulation by crossing the endothelial monolayer at specific transmigration 'hotspot' regions. Although these regions support leukocyte transmigration, their functionality is not clear. We found that endothelial hotspots function to limit vascular leakage during transmigration events. Using the photo-convertible probe mEos4b, we traced back and identified original endothelial transmigration hotspots. Using this method, we show that the heterogeneous distribution of ICAM… Show more
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