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[Suppression of cytotoxic cellular reactions by the production of antibodies to rhamnose determinants of streptococcal group A polysaccharide cross-reacting with antigens of the skin epithelium]. 1990

E A Bazanova, and E V Gnezditskaia, and I M Liampert, and N A Borodiiuk, and L F Evseeva, and G V Spirina, and T K Asoskova

By the BALB/c mice after different periods of immunization with the streptococci group A, treated with pepsin, antibodies belonging to autoantibodies to the determinants (DT) of polysaccharide (A-PS), cross-reactive (CR) with the epithelial skin cells, were investigated. In one of the mice groups, in the autologous system, on the target cells--macrophages of lymph nodes, the suppression of cytotoxic (CT) reactions was obtained. The CR are bound with the delayed type hypersensitivity appearing after the sensibilization with BCG. The suppression effect correlate (z-0.95) with the presence in the sera antibodies to the rhamnose DT'S of A-PS, which cross-react with the cells of basal and superbasal layers of skin epithelium. Antibodies to the group specific of the A-PS, cross-react only with the basal skin layer and not produce the suppression of CT reactions. It is possible that they also prevent the suppression of CT reactions, bound with the CR antibodies to the rhamnose DT-S of A-PS. The obtained data corroborate the earlier supposition that the autoantibodies to the CR DT'S of A-PS reacting with the skin epithelial cells as a rule common the thymus epithelial cells. It is possible that different IRD'S can prevent or stimulate the development of autoimmune processes by the infections with the streptococci group A.

UI MeSH Term Description Entries
D006968 Hypersensitivity, Delayed An increased reactivity to specific antigens mediated not by antibodies but by sensitized T CELLS. Hypersensitivity, Tuberculin-Type,Hypersensitivity, Type IV,Tuberculin-Type Hypersensitivity,Type IV Hypersensitivity,Delayed Hypersensitivity,Delayed Hypersensitivities,Hypersensitivity, Tuberculin Type,Tuberculin Type Hypersensitivity,Tuberculin-Type Hypersensitivities,Type IV Hypersensitivities
D008807 Mice, Inbred BALB C An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research. BALB C Mice, Inbred,BALB C Mouse, Inbred,Inbred BALB C Mice,Inbred BALB C Mouse,Mice, BALB C,Mouse, BALB C,Mouse, Inbred BALB C,BALB C Mice,BALB C Mouse
D011135 Polysaccharides, Bacterial Polysaccharides found in bacteria and in capsules thereof. Bacterial Polysaccharides
D003429 Cross Reactions Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen. Cross Reaction,Reaction, Cross,Reactions, Cross
D004848 Epithelium The layers of EPITHELIAL CELLS which cover the inner and outer surfaces of the cutaneous, mucus, and serous tissues and glands of the body. Mesothelium,Epithelial Tissue,Mesothelial Tissue,Epithelial Tissues,Mesothelial Tissues,Tissue, Epithelial,Tissue, Mesothelial,Tissues, Epithelial,Tissues, Mesothelial
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
D000907 Antibodies, Bacterial Immunoglobulins produced in a response to BACTERIAL ANTIGENS. Bacterial Antibodies
D000920 Antibody-Dependent Cell Cytotoxicity The phenomenon of antibody-mediated target cell destruction by non-sensitized effector cells. The identity of the target cell varies, but it must possess surface IMMUNOGLOBULIN G whose Fc portion is intact. The effector cell is a "killer" cell possessing Fc receptors. It may be a lymphocyte lacking conventional B- or T-cell markers, or a monocyte, macrophage, or polynuclear leukocyte, depending on the identity of the target cell. The reaction is complement-independent. ADCC,Cytotoxicity, Antibody-Dependent Cell,Cell Cytoxicity, Antibody-Dependent,Antibody Dependent Cell Cytotoxicity,Antibody-Dependent Cell Cytotoxicities,Antibody-Dependent Cell Cytoxicities,Antibody-Dependent Cell Cytoxicity,Cell Cytotoxicities, Antibody-Dependent,Cell Cytotoxicity, Antibody-Dependent,Cell Cytoxicities, Antibody-Dependent,Cell Cytoxicity, Antibody Dependent,Cytotoxicities, Antibody-Dependent Cell,Cytotoxicity, Antibody Dependent Cell,Cytoxicities, Antibody-Dependent Cell,Cytoxicity, Antibody-Dependent Cell
D000939 Epitopes Sites on an antigen that interact with specific antibodies. Antigenic Determinant,Antigenic Determinants,Antigenic Specificity,Epitope,Determinant, Antigenic,Determinants, Antigenic,Specificity, Antigenic
D001323 Autoantibodies Antibodies that react with self-antigens (AUTOANTIGENS) of the organism that produced them. Autoantibody

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