First Author | Erickson SL | Year | 1994 |
Journal | Nature | Volume | 372 |
Issue | 6506 | Pages | 560-3 |
PubMed ID | 7990930 | Mgi Jnum | J:21815 |
Mgi Id | MGI:69721 | Doi | 10.1038/372560a0 |
Citation | Erickson SL, et al. (1994) Decreased sensitivity to tumour-necrosis factor but normal T-cell development in TNF receptor-2-deficient mice. Nature 372(6506):560-3 |
abstractText | 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. |