Graft-versus-host-disease (GVHD) is a severe and frequent complication of allogeneic bone marrow transplantation (BMT) that involves the gastrointestinal tract and lungs. The pathobiology of GVHD is complex and involves immune cell recognition of host antigens as foreign. We hypothesize a central role for the collectin surfactant protein A (SP-A) in regulating the development of GVHD after allogeneic BMT
