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Hippocampal NPC grafts retain partial CD200 expression but lose CD200 expression in extra-hippocampal graft extensions. There was continued partial expression of CD200 by grafted cells at 2 months after transplantation to the hippocampus (A, split color channels in B,C). Grafted cells which extended out of the hippocampus lost CD200 expression (C, arrow). DG, dentate gyrus. Scale Bar: (A) 200 μm.
