Resistance of macrophages from C3H/HeJ mice to the in vitro cytotoxic effects of endotoxin

L. M. Glode, A. Jacques, S. E. Mergenhagen, David L. Rosenstreich

Research output: Contribution to journalArticle

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Abstract

Endotoxin (LPS) is toxic for normal mouse macrophages in vitro at concentrations (50 μg/ml) that are fully mitogenic and nontoxic to lymphocytes. Macrophages from LPS resistant C3H/HeJ mice are not killed by LPS in vitro whereas those from a closely related LPS responsive strain (C3H/HeN) are killed. Killing is the result of a direct interaction between LPS and the macrophage since this phenomenon is observed in lymphocyte depleted cultures and since the presence of additional LPS-sensitive spleen cells will not enhance the killing of either C3H/HeN or C3H/HeJ macrophages. Furthermore, C3H/HeJ macrophages remain resistant to LPS induced killing despite prior immunization with LPS in vivo or incubation with anti-LPS serum in vitro. LPS preparations vary in their cytotoxic effect on macrophages, and Escherichia coli K 235 LPS (phenol-water extracted), which discriminates well between LPS responsive and nonresponsive B cells, also discriminates well between LPS-sensitive and resistant macrophages. However, there is no apparent correlation between the mitogenic potential of LPS preparations and their cytotoxic effect on macrophages. These findings suggest that the C3H/HeJ mouse strain possesses a defect in LPS responsiveness which is intrinsic to its macrophages as well as its B lymphocytes.

Original languageEnglish (US)
Pages (from-to)162-166
Number of pages5
JournalJournal of Immunology
Volume119
Issue number1
StatePublished - 1977
Externally publishedYes

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Inbred C3H Mouse
Endotoxins
Macrophages
B-Lymphocytes
Lymphocytes
In Vitro Techniques
Poisons
Phenol
Immunization
Spleen
Escherichia coli
Water

ASJC Scopus subject areas

  • Immunology

Cite this

Resistance of macrophages from C3H/HeJ mice to the in vitro cytotoxic effects of endotoxin. / Glode, L. M.; Jacques, A.; Mergenhagen, S. E.; Rosenstreich, David L.

In: Journal of Immunology, Vol. 119, No. 1, 1977, p. 162-166.

Research output: Contribution to journalArticle

Glode, L. M. ; Jacques, A. ; Mergenhagen, S. E. ; Rosenstreich, David L. / Resistance of macrophages from C3H/HeJ mice to the in vitro cytotoxic effects of endotoxin. In: Journal of Immunology. 1977 ; Vol. 119, No. 1. pp. 162-166.
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AU - Rosenstreich, David L.

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