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  • Title: Analysis of an initial step of T cell adhesion to endothelial monolayers under flow conditions.
    Author: Yago T, Tsukuda M, Yamazaki H, Nishi T, Amano T, Minami M.
    Journal: J Immunol; 1995 Feb 01; 154(3):1216-22. PubMed ID: 7529795.
    Abstract:
    We analyzed an initial step of T cell adhesion to endothelial cells under flow conditions. An initial step in T cell-endothelial cell interactions was characterized either by a rolling phase, or by an immediate arrest without rolling. Anti-E- and P-selectin Abs inhibited T cell rolling on endothelial cells under flow conditions. The rolling velocity of T cells on endothelial cells increased after treatment of endothelial cells with anti-E- or P-selectin Abs. Also, rolling of T cells was observed on E-selectin-transfected CHO cells but not on ICAM-1-transfected CHO cells. Thus, rolling of T cells under flow condition was dependent on E-selectin as well as P-selectin expressed on endothelial cells. In contrast, neither anti-E- nor P-selectin Abs inhibited the immediate arrest of T cells on endothelial cells significantly and anti-ICAM-1 Abs also failed to inhibit the immediate arrest of T cells. Therefore, other adhesion molecules may play an important role in the immediate arrest of T cells under flow conditions. The number of CD45RA- T cells rolling on E-selectin-transfected CHO cells was much higher than that of CD45RA+ T cells.
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