Passive immunization against cachectin/tumor necrosis factor protects mice from lethal effect of endotoxin

B. Beutler, I. W. Milsark, A. C. Cerami

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A highly specific polyclonal rabbit antiserum directed against murine cachectinltumor necrosis factor (TNF) was prepared. When BALBIc mice were passively immunized with the antiserum or with purified immune globulin, they were protected against the lethal effect of the endotoxin lipopolysaccharide produced by Escherichia coli. The prophylactic effect was dose-dependent and was most effective when the antiserum was administered prior to the injection of the endotoxin. Antiserum to cachectin/TNF did not mitigate the febrile response of endotoxin-treated animals, and very high doses of endotoxin could overcome the protective effect. The median lethal dose of endotoxin in mice pretreated with 50 microliters of the specific antiserum was approximately 2.5 times greater the median lethal dose for controls given nonimmune serum. The data suggest that cachectinlTNF is one of the principal mediators of the lethal effect of endotoxin.

Original languageEnglish (US)
Pages (from-to)7-9
Number of pages3
JournalJournal of Immunology
Volume181
Issue number1
StatePublished - 2008

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Passive Immunization
Endotoxins
Tumor Necrosis Factor-alpha
Immune Sera
Lipopolysaccharides
Immunoglobulins
Fever
Necrosis
Escherichia coli
Rabbits
Injections
Serum

ASJC Scopus subject areas

  • Immunology

Cite this

Passive immunization against cachectin/tumor necrosis factor protects mice from lethal effect of endotoxin. / Beutler, B.; Milsark, I. W.; Cerami, A. C.

In: Journal of Immunology, Vol. 181, No. 1, 2008, p. 7-9.

Research output: Contribution to journalArticle

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