Cell death and activation of endothelial cells and cellular infiltration contributed to the development of TM. The number of TUNEL+ dead capillary cells (A), the expression of TF (B), and CD39 (C), and the number of CD3+ cells (D) in the grafts are shown. The number of TUNEL+ cells (E, F), and the expression of TF (G) and CD39 (H) correlated strongly with IgM and C4d deposition. CD41+ thrombi formation was strongly correlated with TUNEL+ cells (I), TF (J), and CD39 (K) expression, and was weakly correlated with CD3+ cell infiltration (L).