Figure 2.
Effect of VCAM-1-D6 protein on HUVEC tube formation. (a) Light microscopic images depicting tube formation by hTNFα-treated HUVECs in the absence (MOCK) or presence of the indicated concentrations of VCAM-1-D6-Fc fusion protein or Fc domain alone. Fc served as a negative control. (b) Quantitation of total tube branches in hTNFα-treated HUVECs in presence of VCAM-1-D6-Fc or Fc, expressed as a percent of control (MOCK) tube formation. All data are presented as the mean±s.e.m. of triplicate measurements from one of the three independent experiments; ***P<0.001.