Representative photographs of histological sections of the transplanted corneas of the high-risk model of corneal transplant.

<p>A) sham group; B) rabbit AD-MSCs. Note the intense edema causing thickening of the corneal stroma (Str), and leukocyte infiltration in the stroma and blood vessels (arrows). Epi: corneal epithelium; end: corneal endothelium. Hematoxylin and eosin staining. C) Corneal thickness measurements in the transplanted corneas. Stars indicate statistical significance at the p≤0.05 level. D) CD45 leukocyte infiltration measurements. No statistical difference. E) CD45 immunohistochemistry in a transplanted cornea with sham treatment. F) CD45 immunohistochemistry in an AD-MSC-treated transplanted cornea. Positive cells are labeled in black (arrows).