The effect of various inflammatory agents on the alternative metabolic pathways of arginine in mouse and rat macrophages

A. Hrabák, T. Bajor, I. Csuka

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Objective and design: The effects of various inflammatory stimuli on the alternative arginine metabolic pathways in mouse and rat peritoneal macrophages were investigated in vitro and compared. Treatments: Mice and rats were injected i.p. with thioglycollate, carrageenan, casein, BCG and Newcastle Disease Virus (NDV) vaccines. Methods: Peritoneal macrophages were isolated from untreated and treated animals. The activities of nitric oxide synthase (NOS) II and arginase were measured and expressions were followed by Western blotting. The uptake of arginine and nitrite formation of macrophages were also measured. Results: Inflammatory stimuli increased the NO production and the expression and activity of both NOS II and arginase in mice in vitro. On the contrary, the same treatments changed the expression and activity of NOS II only, but not those of arginase in rats. The most marked effects on NO metabolism were produced by casein and NDV treatments. Conclusions: The activity and expression of NOS II and arginase can be stimulated in peritoneal macrophages in vitro by injecting inflammatory agents into the peritoneal cavity. A markedly different response in arginine metabolism was observed in mouse and rat macrophages. Casein treatment was a potent inducer for both enzymes. NDV vaccines induced mainly NOS II, while thioglycollate induced arginase.

Original languageEnglish
Pages (from-to)23-31
Number of pages9
JournalInflammation Research
Volume55
Issue number1
DOIs
Publication statusPublished - Jan 2006

Fingerprint

Arginase
Macrophages
Nitric Oxide Synthase Type II
Metabolic Networks and Pathways
Arginine
Rats
Newcastle disease virus
Peritoneal Macrophages
Caseins
Viruses
Thioglycolates
Metabolism
Vaccines
Carrageenan
Peritoneal Cavity
Mycobacterium bovis
Nitrites
Animals
Western Blotting
Enzymes

Keywords

  • Arginase
  • Arginine metabolism
  • Inflammation
  • Macrophages
  • Nitric oxide

ASJC Scopus subject areas

  • Toxicology
  • Pharmacology (medical)
  • Immunology
  • Cell Biology

Cite this

The effect of various inflammatory agents on the alternative metabolic pathways of arginine in mouse and rat macrophages. / Hrabák, A.; Bajor, T.; Csuka, I.

In: Inflammation Research, Vol. 55, No. 1, 01.2006, p. 23-31.

Research output: Contribution to journalArticle

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