Minor histocompatibility antigens with expression restricted to the recipient hematopoietic compartment represent prospective immunological targets for graft-versus-leukemia therapy. It remains unclear, however, whether donor T cell recognition of these hematopoietically derived minor histocompatibility antigens will induce significant graft-versus-host disease (GVHD). Using established bone ma...

Immunological reactivity results from differences between the transplant host and donor for cell surface determinants known as histocompatibility antigens. Histocompatibility antigens that provoke the most severe transplant reactions are encoded by a series of genes that reside in a discrete chromosomal region termed the major histocompatibility complex (MHC) (Amos 1968). Genes of the human leu...

In the colonial tunicate Botryllus schlosseri, a co-dominant trait determines the capacity of adjacent colonies to fuse or reject. An innovative RNA sequencing approach has now identified the gene that predicts the outcomes of this naturally occurring allograft.

ISTOCOMPATIBILITY antigens are a group of cell H membrane alloantigens that can trigger T-lymphocyte proliferative and/or cytolytic activity in vitro and may initiate graft rejection or graft-versus-host disease (GVHD) in vivo. AB0 and related antigens, whose presence on vascular endothelial cells may provoke antibody-mediated graft rejection, are excluded from this group because they do not in...

The major histocompatibility complex on the sixth chromosome controls expression of a complex series of cell surface antigens which comprise the human leukocyte antigen (HLA) system. These markers, beyond their importance in human organ transplantation, have been demonstrated to occur with an increased prevalence in certain disease states. The group of conditions showing the closest association...

Abbreviations: MHC I: Major Histocompatibility Complex-Class I; MHC I : Major Histocompatibility Complex-Class II; PSSM: Position Specific Scoring Matrices; SVM: Support Vector Machine; GWD: Guinea worm disease; UniProt: The Universal Protein Resource; NCBI: National Center for Biotechnology Information; TAP: Transporter Associated with Antigen Processing; HPLC: High Performance Liquid Chromato...

The major histocompatibility complex in swine (swine leucocyte antigen: SLA) is located on chromosome 7 with the class I and class III regions separated by the centromere from the class II region. The overall molecular organisation of the class I and III regions is well known, but further research is needed to establish that of the class II region. Approximately sixty genes have been characteri...

Disparities in minor histocompatibility antigens between HLA-matched organ and bone marrow donors and recipients create a potential risk for graft failure and graft-versus-host disease. These conditions necessitate lifelong pharmacological immunosuppression of organ and bone marrow transplant recipients. Recent technical advances have resulted in the identification of the chemical nature of the...

BACKGROUND AND OBJECTIVE Molecular gene markers, which can distinguish human bone marrow mesenchymal stem cells from human fibroblasts, have recently been reported. Messenger RNA levels of tissue factor pathway inhibitor-2, major histocompatibility complex-DR-alpha, major histocompatibility complex-DR-beta, and neuroserpin are higher in human bone marrow mesenchymal stem cells than in human fib...

The major histocompatibility complex (MHC) is a group of closely linked loci present in remarkably similar form in all mammals and perhaps in all vertebrates. It plays a still imperfectly understood but clearly important role in immune phenomena. Because of the unusual concentration of similar genes, I referred to it in 1968 as a supergene (1). Bodmer (2) has gone me one better, calling it a su...