Figure 1: Immune staining for ED1 and TCR. Infiltration of TCR+ cells (A) and ED1+ cells (C) were evident in allografts from the vehicle-treated allograft recipients. In the transplanted hearts of FR276457-treated recipient rats, infiltration of TCR+ cells (B) remained almost the same, however, infiltration of ED1+ cells was tended to decrease than that in allografts from the vehicletreated allograft recipients (D).