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Murine follicular dendritic cells and low affinity Fc receptors for IgE (Fc epsilon RII). 1992

K Maeda, and G F Burton, and D A Padgett, and D H Conrad, and T F Huff, and A Masuda, and A K Szakal, and J G Tew
Department of Microbiology and Immunology, Medical College of Virginia/Virginia Commonwealth University, Richmond 23298.

The present study was undertaken to determine whether mouse follicular dendritic cells (FDC) bear Fc epsilon RII (CD23) and whether IgE-immune complexes are retained by FDC. Mouse Fc epsilon RII was localized by both L and electron microscopy using the mAb B3B4. In lymph nodes of normal mice, Fc epsilon RII was low but detectable on FDC. By 14 days after Nippostrongylus brasiliensis infection, the level of Fc epsilon RII increased on B lymphocytes located in the cortex of draining mesenteric lymph nodes. However, the Fc epsilon RII level on FDC remained low. Although numerous IgE-producing plasma cells were seen at day 14, very little IgE was associated with FDC. By 26 days after infection, Fc epsilon RII was observed on FDC in increased levels and IgE binding was clearly associated with FDC. Unexpectedly, FDC of control mice immunized with albumin in CFA to elicit an IgG response showed intense labeling for Fc epsilon RII. In contrast, the B cells exhibited very little Fc epsilon RII. IgE immune complexes were observed in association with FDC in the CFA-immunized mice. When mice were given a hapten-specific monoclonal of the IgE isotype, hapten carrier complexes were trapped and retained on Fc epsilon RII-bearing FDC. In conclusion, FDC were clearly one of the major murine cell types bearing Fc epsilon RII. IgE immune complexes were found in association with FDC and Fc epsilon RII appeared to play a major role in trapping and retaining IgE immune complexes. FDC Fc epsilon RII was subject to regulatory control, but the Fc epsilon RII level on FDC was regulated very differently from the Fc epsilon RII level on B cells.

UI MeSH Term Description Entries
D007073 Immunoglobulin E An immunoglobulin associated with MAST CELLS. Overexpression has been associated with allergic hypersensitivity (HYPERSENSITIVITY, IMMEDIATE). IgE
D007114 Immunization Deliberate stimulation of the host's immune response. ACTIVE IMMUNIZATION involves administration of ANTIGENS or IMMUNOLOGIC ADJUVANTS. PASSIVE IMMUNIZATION involves administration of IMMUNE SERA or LYMPHOCYTES or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow). Immunologic Stimulation,Immunostimulation,Sensitization, Immunologic,Variolation,Immunologic Sensitization,Immunological Stimulation,Sensitization, Immunological,Stimulation, Immunologic,Immunizations,Immunological Sensitization,Immunological Sensitizations,Immunological Stimulations,Sensitizations, Immunological,Stimulation, Immunological,Stimulations, Immunological,Variolations
D008198 Lymph Nodes They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system. Lymph Node,Node, Lymph,Nodes, Lymph
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
D008809 Mice, Inbred C3H An inbred strain of mouse that is used as a general purpose strain in a wide variety of RESEARCH areas including CANCER; INFECTIOUS DISEASES; sensorineural, and cardiovascular biology research. Mice, C3H,Mouse, C3H,Mouse, Inbred C3H,C3H Mice,C3H Mice, Inbred,C3H Mouse,C3H Mouse, Inbred,Inbred C3H Mice,Inbred C3H Mouse
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D009349 Nematode Infections Infections by nematodes, general or unspecified. Infections, Nematode,Infection, Nematode,Nematode Infection
D011961 Receptors, Fc Molecules found on the surface of some, but not all, B-lymphocytes, T-lymphocytes, and macrophages, which recognize and combine with the Fc (crystallizable) portion of immunoglobulin molecules. Fc Receptors,Fc Receptor,Receptor, Fc
D003713 Dendritic Cells Specialized cells of the hematopoietic system that have branch-like extensions. They are found throughout the lymphatic system, and in non-lymphoid tissues such as SKIN and the epithelia of the intestinal, respiratory, and reproductive tracts. They trap and process ANTIGENS, and present them to T-CELLS, thereby stimulating CELL-MEDIATED IMMUNITY. They are different from the non-hematopoietic FOLLICULAR DENDRITIC CELLS, which have a similar morphology and immune system function, but with respect to humoral immunity (ANTIBODY PRODUCTION). Dendritic Cells, Interdigitating,Interdigitating Cells,Plasmacytoid Dendritic Cells,Veiled Cells,Dendritic Cells, Interstitial,Dendritic Cells, Plasmacytoid,Interdigitating Dendritic Cells,Interstitial Dendritic Cells,Cell, Dendritic,Cell, Interdigitating,Cell, Interdigitating Dendritic,Cell, Interstitial Dendritic,Cell, Plasmacytoid Dendritic,Cell, Veiled,Cells, Dendritic,Cells, Interdigitating,Cells, Interdigitating Dendritic,Cells, Interstitial Dendritic,Cells, Plasmacytoid Dendritic,Cells, Veiled,Dendritic Cell,Dendritic Cell, Interdigitating,Dendritic Cell, Interstitial,Dendritic Cell, Plasmacytoid,Interdigitating Cell,Interdigitating Dendritic Cell,Interstitial Dendritic Cell,Plasmacytoid Dendritic Cell,Veiled Cell
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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