TNF and leukemia: As expected, LPS and TNFα increased attachment of GFP-labeled breast cancer cells (HCC1937-GFP, MDA-MB-231-GFP and MDA-MB-468-GFP) and leukemia cells (Jurkat-GFP) to monolayer-cultured HUVECs (Fig. 2e, f and Supplementary Fig. 2e, f).