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Activation of a myelin basic protein-specific human T cell clone by antigen-presenting cells from rhesus monkeys. 1995

E Meinl, and B A t Hart, and R E Bontrop, and R M Hoch, and A Iglesias, and R de Waal Malefyt, and H Fickenscher, and I Müller-Fleckenstein, and B Fleckenstein, and H Wekerle
Department of Neuroimmunology, Max-Planck Institute of Psychiatry, Martinsried, Germany.

This study addresses the capacity of peripheral blood mononuclear cells (PBMC) from rhesus monkeys (Macaca mulatta) to present myelin basic protein (MBP), a candidate auto-antigen for multiple sclerosis, to MBP-specific human CD4+ T cell clones. MHC-restriction of the human T cell clones was determined with HLA-DR-transfected L cells, and epitope specificity was established with a panel of overlapping 20-mer peptides. The MHC-DR region of the rhesus monkeys (Mamu) was characterized serologically and by sequence analysis. We identified one CD4+ HLA-DRB1*0301-restricted Th1-like human T cell clone (ES-BP8) that was activated to proliferation with human or rhesus monkey MBP, or peptide MBP 29-48 presented by PBMC from six different rhesus monkeys expressing the Mamu-DRB1*0305 or -DRB1*0306 alleles. After transformation to continuous growth with Herpesvirus saimiri, the T cell clone could still be stimulated by antigen (Ag) and Ag-presenting cells (APC) from monkeys. Two other T cell clones with the same HLA-restriction and the same peptide-specificity did not respond to MBP presented by these rhesus monkeys. The exon 2 sequences HLA-DRB1*0301, Mamu-DRB1*0305 and -DRB1*0306 differ at positions 32, 47, 67, 73 and 86. These amino acid differences are not critical for the binding of MBP 29-48 and do not abrogate recognition by the clone ES-BP8, but interfere with the recognition of the two other HLA-DRB1*0301-restricted T cell clones. In conclusion, studying Ag-presentation from rhesus monkey may provide further insight into the interaction of antigenic peptide, TCR and MHC.(ABSTRACT TRUNCATED AT 250 WORDS)

UI MeSH Term Description Entries
D008213 Lymphocyte Activation Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION. Blast Transformation,Blastogenesis,Lymphoblast Transformation,Lymphocyte Stimulation,Lymphocyte Transformation,Transformation, Blast,Transformation, Lymphoblast,Transformation, Lymphocyte,Activation, Lymphocyte,Stimulation, Lymphocyte
D008253 Macaca mulatta A species of the genus MACACA inhabiting India, China, and other parts of Asia. The species is used extensively in biomedical research and adapts very well to living with humans. Chinese Rhesus Macaques,Macaca mulatta lasiota,Monkey, Rhesus,Rhesus Monkey,Rhesus Macaque,Chinese Rhesus Macaque,Macaca mulatta lasiotas,Macaque, Rhesus,Rhesus Macaque, Chinese,Rhesus Macaques,Rhesus Macaques, Chinese,Rhesus Monkeys
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D002999 Clone Cells A group of genetically identical cells all descended from a single common ancestral cell by mitosis in eukaryotes or by binary fission in prokaryotes. Clone cells also include populations of recombinant DNA molecules all carrying the same inserted sequence. (From King & Stansfield, Dictionary of Genetics, 4th ed) Clones,Cell, Clone,Cells, Clone,Clone,Clone Cell
D004676 Myelin Basic Protein An abundant cytosolic protein that plays a critical role in the structure of multilamellar myelin. Myelin basic protein binds to the cytosolic sides of myelin cell membranes and causes a tight adhesion between opposing cell membranes. Golli-MBP1 Protein,Golli-MBP2 Protein,HOG5 Protein,HOG7 Protein,MBP1 Protein,MBP2 Protein,MBP3 Protein,MBP4 Protein,Myelin Basic Protein, 17.2 kDa Isoform,Myelin Basic Protein, 18.5 kDa Isoform,Myelin Basic Protein, 20.2 kDa Isoform,Myelin Basic Protein, 21.5 kDa Isoform,Myelin Basic Protein, Isoform 1,Myelin Basic Protein, Isoform 2,Myelin Basic Protein, Isoform 3,Myelin Basic Protein, Isoform 4,Myelin Basic Protein, Isoform 5,Myelin Basic Protein, Isoform 6,Myelin Basic Protein, Isoform 7,Golli MBP1 Protein,Golli MBP2 Protein
D006684 HLA-DR Antigens A subclass of HLA-D antigens that consist of alpha and beta chains. The inheritance of HLA-DR antigens differs from that of the HLA-DQ ANTIGENS and HLA-DP ANTIGENS. HLA-DR,Antigens, HLA-DR,HLA DR Antigens
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000483 Alleles Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product. Allelomorphs,Allele,Allelomorph
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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