“…At the end of the large, multiarmed study of Richter et al, the MMF group showed the mildest coronary vessel disease in their transplanted hearts 27 . MMF also reduced the migration of host LFA‐1 + leukocytes into the myocardium and perivascular spaces of graft arteries, and decreased endothelial expression of the cell adhesion molecule ICAM‐1 28 . This same dose of MMF reduced immunoreactivity for CD4, CD8, CD11a, and CD18 in the perivascular space around intracardiac and epicardiac arteries of rat heart allografts, indicative of reduced leukocyte infiltration 27 …”