Fig. 3.
Immunohistochemical detection of NO-producing cells in GVHR spleen cell cytospin preparations: (GVH) untreated GVHR cells; (GVH Con A) and (GVH LPS) GVHR cells treated by Con A and LPS, respectively. Spleen cells were taken on days 7, 14, and 21 of the GVHR. Anti-iNOS antibodies stain in red the cytoplasm of NO-producing cells. Original magnification × 400.