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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Alexander-miller, M. A. Flye, M. W. Connolly, J. M. Goss, J. A. Gorka, J. Hansen, T. H. |
| Description | Author Affiliation: Goss JA ( Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110.); |
| Abstract | Allograft rejection results from the specific recognition by host CD8+ T cells of allogeneic major histocompatibility complex (MHC) molecules on the tissue graft. The specificity of this cellular response is determined by the molecular interaction of the T-cell receptor (TCR) on host T cells with the MHC molecule and its bound ligand on the grafted tissue. To better understand the precise manner by which the TCR interacts with the MHC-peptide complex and how to therapeutically intervene, we have studied the allogeneic response to the mouse class I MHC molecule Ld. In this report, the therapeutic potential of a synthetic peptide derived from the TCR V beta 8 variable region that predominates in responses to Ld was tested. This V beta 8-derived peptide was found to dramatically and specifically block the in vivo and in vitro allogeneic response to Ld. Furthermore, this specific blocking is not dependent upon the presence of V beta 8+ effector cells nor does the V beta 8 peptide bind to the Ld ligand binding cleft. We propose that this peptide functions as an antagonist, competing with the native TCR for recognition of the Ld molecule. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 21 |
| Volume Number | 90 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1993-12-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Graft Survival Drug Effects Peptide Fragments Pharmacology Receptors, Antigen, T-Cell Immunology Skin Transplantation Amino Acid Sequence Animals Cell Line Haplotypes Histocompatibility Antigens Class I Histocompatibility Antigens Class II Mice Mice, Inbred BALB C Mice, Inbred C57BL Mice, Inbred Strains Molecular Sequence Data T-Lymphocytes, Cytotoxic Transplantation, Homologous Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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