PT  - JOURNAL ARTICLE
AU  - Zhou, T
AU  - Edwards, C K
AU  - Yang, P
AU  - Wang, Z
AU  - Bluethmann, H
AU  - Mountz, J D
TI  - Greatly accelerated lymphadenopathy and autoimmune disease in lpr mice lacking tumor necrosis factor receptor I.
DP  - 1996 Apr 15
TA  - The Journal of Immunology
PG  - 2661--2665
VI  - 156
IP  - 8
4099  - http://www.jimmunol.org/content/156/8/2661.short
4100  - http://www.jimmunol.org/content/156/8/2661.full
SO  - J. Immunol.1996 Apr 15; 156
AB  - Fas and TNF receptor I (TNF-RI) share homology at their cytoplasmic death domain and belong to the same gene family, but utilize different pathways to signal activation-induced cell death. To determine the combined effects of defective TNF-RI and Fas signaling on lymphadenopathy and autoimmune disease, we backcrossed TNF-RI knockout mice (Tnfr1(0/0)) with Fas-deficient C57BL/6-lpr/lpr mice. Tnfr1(0/0)lpr/lpr mice developed greatly accelerated lymphadenopathy and autoantibody production compared with C57BL/6-lpr/ lpr mice. Tnfr1(0/0)-lpr/lpr mice also exhibited high mortality and early onset autoimmune disease characterized by massive mononuclear cell infiltration in liver, kidney, lung, and knee joints. These results indicate that the Fas-mediated apoptosis defect in lpr mice is accelerated in the absence of TNF-RI and that normal expression of TNF-RI might partially compensate for the Fas-mediated apoptosis defect of mononuclear cells in lpr mice.