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PMID:8395024
| Citation |
Rothe, J, Lesslauer, W, Lötscher, H, Lang, Y, Koebel, P, Köntgen, F, Althage, A, Zinkernagel, R, Steinmetz, M and Bluethmann, H (1993) Mice lacking the tumour necrosis factor receptor 1 are resistant to TNF-mediated toxicity but highly susceptible to infection by Listeria monocytogenes. Nature 364:798-802 |
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| Abstract |
Tumour necrosis factor (TNF), jointly referring to TNF alpha and TNF beta, is a central mediator of immune and inflammatory responses; its activities are mediated by two distinct receptors, TNFR1 (p55) and TNFR2 (p75) (reviewed in refs 1-3). The cytoplasmic domains of the TNFRs are unrelated, suggesting that they link to different intracellular signalling pathways. Although most TNF responses have been assigned to one or the other of the TNF receptors (mostly TNFR1), there is no generally accepted model for the physiological role of the two receptor types. To investigate the role of TNFR1 in beneficial and detrimental activities of TNF, we generated TNFR1-deficient mice by gene targeting. We report here that mice homozygous for a disrupted Tnfr1 allele (Tnfr1(0)) are resistant to the lethal effect of low doses of lipopolysaccharide after sensitization with D-galactosamine, but remain sensitive to high doses of lipopolysaccharide. The increased susceptibility of Tnfr1(0)/Tnfr1(0) mutant mice to infection with the facultative intracellular bacterium Listeria monocytogenes indicates an essential role of TNF in nonspecific immunity. |
| Links |
PubMed Online version:10.1038/364798a0 |
| Keywords |
Animals; Antibodies/administration & dosage; Cell Line; Chimera; Disease Susceptibility/immunology; Female; Galactosamine; Lipopolysaccharides/immunology; Lipopolysaccharides/toxicity; Listeria monocytogenes; Listeriosis/immunology; Lymphocyte Subsets/cytology; Lymphocyte Subsets/immunology; Male; Mice; Mice, Inbred C57BL; Mutation; Receptors, Cell Surface/classification; Receptors, Cell Surface/genetics; Receptors, Cell Surface/physiology; Receptors, Tumor Necrosis Factor; Salmonella/immunology; Signal Transduction; T-Lymphocytes, Cytotoxic/immunology; Tumor Necrosis Factor-alpha/antagonists & inhibitors; Tumor Necrosis Factor-alpha/physiology; Tumor Necrosis Factor-alpha/toxicity; Vaccinia virus/immunology |
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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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