The Role of the Tumor Necrosis Factor Receptor in 2,4,6-Trinitrobenzene Sulfonic Acid (TNBS)-Induced Colitis in Mice

2005 ◽  
Vol 50 (9) ◽  
pp. 1669-1676 ◽  
Author(s):  
Minoru Nakai ◽  
Kaori Sudo ◽  
Yasuhiro Yamada ◽  
Yasushi Kojima ◽  
Tomohiro Kato ◽  
...  
Keyword(s):  
Tumor Necrosis Factor ◽  
Sulfonic Acid ◽  
Tumor Necrosis ◽  
Tumor Necrosis Factor Receptor ◽  
Trinitrobenzene Sulfonic Acid ◽  
Necrosis Factor

scholarly journals Opposing role of tumor necrosis factor receptor 1 signaling in T cell-mediated hepatitis and bacterial infection in mice

Hepatology ◽  
2016 ◽  
Vol 64 (2) ◽  
pp. 508-521 ◽  
Author(s):  
Raluca Wroblewski ◽  
Marietta Armaka ◽  
Vangelis Kondylis ◽  
Manolis Pasparakis ◽  
Henning Walczak ◽  
...  
Keyword(s):  
T Cell ◽  
Tumor Necrosis Factor ◽  
Bacterial Infection ◽  
Tumor Necrosis ◽  
Tumor Necrosis Factor Receptor ◽  
Necrosis Factor

scholarly journals Critical role of tumor necrosis factor receptor 1 in the pathogenesis of pulmonary emphysema in mice

2016 ◽  
Vol Volume 11 ◽  
pp. 1705-1712 ◽  
Author(s):  
Masaki Fujita ◽  
Ouchi Hiroshi ◽  
Satoshi Ikemage ◽  
Eiji Harada ◽  
Takemasa Matsumoto ◽  
...  
Keyword(s):  
Tumor Necrosis Factor ◽  
Pulmonary Emphysema ◽  
Tumor Necrosis ◽  
Critical Role ◽  
Tumor Necrosis Factor Receptor ◽  
Necrosis Factor

scholarly journals Role of SODD in Regulation of Tumor Necrosis Factor Responses

2003 ◽  
Vol 23 (11) ◽  
pp. 4026-4033 ◽  
Author(s):  
Hidetoshi Takada ◽  
Nien-Jung Chen ◽  
Christine Mirtsos ◽  
Shinobu Suzuki ◽  
Nobutaka Suzuki ◽  
...  
Keyword(s):  
Tumor Necrosis Factor ◽  
Tumor Necrosis ◽  
Tumor Necrosis Factor Receptor ◽  
Signaling Proteins ◽  
Ligand Stimulation ◽  
Cytotoxic Responses ◽  
Necrosis Factor

ABSTRACT Signaling from tumor necrosis factor receptor type 1 (TNFR1) can elicit potent inflammatory and cytotoxic responses that need to be properly regulated. It was suggested that the silencer of death domains (SODD) protein constitutively associates intracellularly with TNFR1 and inhibits the recruitment of cytoplasmic signaling proteins to TNFR1 to prevent spontaneous aggregation of the cytoplasmic death domains of TNFR1 molecules that are juxtaposed in the absence of ligand stimulation. In this study, we demonstrate that mice lacking SODD produce larger amounts of cytokines in response to in vivo TNF challenge. SODD-deficient macrophages and embryonic fibroblasts also show altered responses to TNF. TNF-induced activation of NF-κB is accelerated in SODD-deficient cells, but TNF-induced c-Jun N-terminal kinase activity is slightly repressed. Interestingly, the apoptotic arm of TNF signaling is not hyperresponsive in the SODD-deficient cells. Together, these results suggest that SODD is critical for the regulation of TNF signaling.

scholarly journals Role of p55 tumor necrosis factor receptor 1 in acetaminophen-induced antioxidant defense

2003 ◽  
Vol 285 (5) ◽  
pp. G959-G966 ◽  
Author(s):  
Hawjyh Chiu ◽  
Carol R. Gardner ◽  
Donna M. Dambach ◽  
Jennie A. Brittingham ◽  
Stephen K. Durham ◽  
...  
Keyword(s):  
Tumor Necrosis Factor ◽  
Tumor Necrosis ◽  
Antioxidant Defense ◽  
Tumor Necrosis Factor Receptor ◽  
Hepatic Necrosis ◽  
Binding Activity ◽  
Heme Oxygenase 1 ◽  
Tnf Α ◽  
Necrosis Factor

Tumor necrosis factor (TNF)-α is a macrophage-derived proinflammatory cytokine implicated in hepatotoxicity. In the present studies, p55 TNF receptor 1 (TNFR1) -/- mice were used to assess the role of TNF-α in acetaminophen-induced antioxidant defense. Treatment of wild-type (WT) mice with acetaminophen (300 mg/kg) resulted in centrilobular hepatic necrosis and increased serum alanine transaminases. This was correlated with a rapid depletion of hepatic glutathione (GSH). Whereas in WT mice GSH levels returned to control after 6–12 h, in TNFR1-/- mice recovery was delayed for 48 h. Delayed induction of heme oxygenase-1 and reduced expression of CuZn superoxide dismutase were also observed in TNFR1-/- compared with WT mice. This was associated with exaggerated hepatotoxicity. In WT mice, acetaminophen caused a time-dependent increase in activator protein-1 nuclear binding activity and in c-Jun expression. This response was significantly attenuated in TNFR1-/- mice. Constitutive NF-κB binding activity was detectable in livers of both WT and TNFR1-/- mice. A transient decrease in this activity was observed 3 h after acetaminophen in WT mice, followed by an increase that was maximal after 6–12 h. In contrast, in TNFR1-/- mice, acetaminophen-induced decreases in NF-κB activity were prolonged and did not return to control levels for 24 h. These data indicate that TNF-α signaling through TNFR1 plays an important role in regulating the expression of antioxidants in this model. Reduced generation of antioxidants may contribute to the increased sensitivity of TNFR1-/- mice to acetaminophen.

Role of tumor necrosis factor receptor 1 (p55) in hepatocyte proliferation during acetaminophen-induced toxicity in mice

2003 ◽  
Vol 193 (2) ◽  
pp. 218-227 ◽  
Author(s):  
Hawjyh Chiu ◽  
Carol R Gardner ◽  
Donna M Dambach ◽  
Stephen K Durham ◽  
Jennie A Brittingham ◽  
...  
Keyword(s):  
Tumor Necrosis Factor ◽  
Tumor Necrosis ◽  
Tumor Necrosis Factor Receptor ◽  
Hepatocyte Proliferation ◽  
Necrosis Factor
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