Rosenthal AS, Rosenwasser LJ, Baskin BL, Schroer J, Thomas JW, Blake JT. Genetic control of the immune response to insulin: its dependence upon a macrophage mediated selection of distinct antigenic sites.
ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1978;
98:447-58. [PMID:
82390 DOI:
10.1007/978-1-4615-8858-0_26]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The immune response to insulin, in both mouse and guinea pig , is under control of H-linked immune response genes. When immunized with either pork or beef insulin to CFA, both strain 2 and 13 guinea pigs respond by antigen-specific lymphocyte proliferation and synthesis of specific antibody. The specificity of the elicited antibodies are indistinguishable between these inbred strains. By contrast, strain 2 T cells recognize a distinct region of the A chain alpha loop consisting of amino acids residues 8, 9 and 10, while strain 13 T cells see an as yet undefined region of the B chain. H2b (A chain alpha loop responder) and H2d (B chain responder) mice similarly discriminate which area of the molecule are recognized by their T lymphocytes. The function of the Ir gene, in both the guinea pig and mouse appears to be an intramolecular selection of discrete regions within the antigen for recognition by the T cell. The data presented suggest that this function operates at the level of the macrophage.
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