Release of enzymes by ricin from macrophages and chinese hamster ovary cells in culture

E. A. Hassoun, Victoria F. Roche, S. J. Stohs

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Ricin selectively depletes hepatic Kupffer's cells (macrophages) in mice, and is cytotoxic in vitro to Chinese hamster ovary (CHO) cells, the L 929 (mouse fibroblast) cell line, and rat bone marrow macrophages. Therefore, the toxicity of ricin to the macrophage J-744A. 1 and CHO cell lines was assessed by determining the release of lactate dehydrogenase (LDH), aspartate aminotransfer-ase (AST), and alanine aminotransferase (ALT). Both dose- and time-dependent increases in the release of LDH and AST were observed. In macrophages, concentrations > 10-9 g ricin/ml inhibited the release of ALT at 48- and 72-h incubation times, whereas ALT release from CHO cells was inhibited by all concentrations of ricin at 24 and 48 h. The results indicate that the release of LDH and AST from macrophage and CHO cell lines may be useful in studies involving the molecular mechanism of toxicity of ricin as well as in assessing the efficacy of potential chemoprotectant agents against ricin.

Original languageEnglish
Pages (from-to)119-129
Number of pages11
JournalToxicology Mechanisms and Methods
Volume3
Issue number2
DOIs
StatePublished - 1993

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Ricin
Macrophages
Cricetulus
Cell culture
Ovary
Cell Culture Techniques
Cells
Enzymes
Alanine Transaminase
L-Lactate Dehydrogenase
Aspartic Acid
Cell Line
Toxicity
Kupffer Cells
Fibroblasts
Rats
Hepatocytes
Bone
Bone Marrow

All Science Journal Classification (ASJC) codes

  • Toxicology
  • Health, Toxicology and Mutagenesis

Cite this

Release of enzymes by ricin from macrophages and chinese hamster ovary cells in culture. / Hassoun, E. A.; Roche, Victoria F.; Stohs, S. J.

In: Toxicology Mechanisms and Methods, Vol. 3, No. 2, 1993, p. 119-129.

Research output: Contribution to journalArticle

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