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. Author manuscript; available in PMC: 2010 Nov 4.
Published in final edited form as: Pediatr Pathol. 1989;9(6):633–654. doi: 10.3109/15513818909022372

FIGURE 4.

FIGURE 4

Donor colon, frozen sections, patient 2, day 27. (a) Donor-specific antibody Bw6 stains epithelial and endothelial cells but not the cellular infiltrate. (b) Recipient specific antibody HLA 25/32 give a mirror image to (a); the infiltrating cells in the lamina propria are of recipient phenotype (c) HLA-DR staining reveals intense expression on epithelial as well as infiltrating cells. Surprisingly, some glands (arrow) are unstained. (d) Many of the infiltrating lymphoid cells bear CD25 (IL-2) receptors × 220.