Figure 1. Fibrosis is increased in cardiac allografts undergoing CR.
(A) Representative Masson’s trichrome stains, in which fibrotic tissue stains blue, of heterotopic cardiac grafts at day 30 post transplant (200x magnification). Cardiac allografts from recipients transiently depleted of CD4+ cells (Anti-CD4) or allograft recipients receiving anti-CD40L mAb therapy (Anti-CD40L) are shown along with syngeneic control grafts. (B) Morphometric analysis of trichrome staining at day 30 and 50 post transplant in groups from (A). Bars represent the combined mean + S.E.M. of fibrotic (blue) area of 10–12 frames of view per heart taken from no fewer than 6 different cardiac grafts per group.