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PMID:9368616
| Citation |
Körner, H, Cook, M, Riminton, DS, Lemckert, FA, Hoek, RM, Ledermann, B, Köntgen, F, Fazekas de St Groth, B and Sedgwick, JD (1997) Distinct roles for lymphotoxin-alpha and tumor necrosis factor in organogenesis and spatial organization of lymphoid tissue. Eur. J. Immunol. 27:2600-9 |
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| Abstract |
Specialized roles for the pro-inflammatory cytokines tumor necrosis factor (TNF) and lymphotoxin (LT) were characterized in TNF/LT alpha -/- and TNF -/- mice established by direct gene targeting of C57BL/6 ES cells. The requirement for LT early in lymphoid tissue organogenesis is shown to be distinct from the more subtle and varied role of TNF in promoting correct microarchitectural organization of leukocytes in LN and spleen. Development of normal Peyer's patch (PP) structure, in contrast, is substantially dependent on TNF. Only mice lacking LT exhibit retarded B cell maturation in vivo and serum immunoglobulin deficiencies. A temporal hierarchy in lymphoid tissue development can now be defined, with LT being an essential participant in general lymphoid tissue organogenesis, developmentally preceeding TNF that has a more varied and subtle role in promotion of correct spatial organization of leukocytes in LN and spleen PP development in TNF -/- mice is unusual, indicating that TNF is a more critical participant for this structure than it is for other lymphoid tissues. |
| Links |
PubMed Online version:10.1002/eji.1830271020 |
| Keywords |
Animals; Antibody Formation; B-Lymphocytes/immunology; B-Lymphocytes/pathology; Cell Adhesion Molecules; Immunoglobulins/metabolism; Immunologic Deficiency Syndromes/embryology; Immunologic Deficiency Syndromes/pathology; Lymph Nodes/abnormalities; Lymph Nodes/embryology; Lymph Nodes/metabolism; Lymphoid Tissue/abnormalities; Lymphoid Tissue/embryology; Lymphoid Tissue/pathology; Lymphotoxin-alpha/genetics; Lymphotoxin-alpha/physiology; Mice; Mice, Inbred C57BL; Mice, Knockout; Morphogenesis; Mucoproteins/metabolism; Peyer's Patches/embryology; Peyer's Patches/pathology; Phenotype; Spleen/embryology; Spleen/pathology; T-Lymphocytes/pathology; Tumor Necrosis Factor-alpha/deficiency; Tumor Necrosis Factor-alpha/genetics; Tumor Necrosis Factor-alpha/physiology |
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Significance
Annotations
| Gene product | Qualifier | GO ID | GO term name | Evidence Code | with/from | Aspect | Notes | Status |
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