Abstract：
:Tumour necrosis factor (TNF) elicits multiple biological effects through two distinct cell surface receptors, TNF-R1 (p55) and TNF-R2 (p75). Most TNF-mediated biological responses, such as cell death, gene induction, antiviral activity and cytokine production, have been attributed to TNF-R1 (refs 1-5). Gene targeting of this receptor confirms its role in the lethality attributable to low doses of lipopolysaccharide after sensitization with D-galactosamine; surprisingly, the toxicity of high doses of lipopolysaccharide was unaffected. The function of TNF-R2 is less well understood, although there are data supporting a role in T-cell development and the proliferation of cytotoxic T lymphocytes. To clarify the physiological role of TNF-R2, we have generated mice deficient in this receptor by gene targeting. The TNF-R2-/- mice show normal T-cell development and activity, but we find that they have increased resistance to TNF-induced death. Additionally, such mice injected subcutaneously with TNF show a dramatic decrease in tissue necrosis, indicating that this receptor plays a role in the necrotic effects of TNF.
journal_name
Naturejournal_title
Natureauthors
Erickson SL,de Sauvage FJ,Kikly K,Carver-Moore K,Pitts-Meek S,Gillett N,Sheehan KC,Schreiber RD,Goeddel DV,Moore MWdoi
10.1038/372560a0subject
Has Abstractpub_date
1994-12-08 00:00:00pages
560-3issue
6506eissn
0028-0836issn
1476-4687journal_volume
372pub_type
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