The immunoregulatory effects of edeine analogues in mice

• Autorzy: Czajgucki Z , Zimecki M. , Andruszkiewicz R.
• Języki publikacji: EN

Abstrakty

EN

The edeines analogs were tested in several in vitro and in vivo assays using the mouse model, with edeine B (peptide W1) and cyclosporine A as reference compounds. The peptides displayed moderate, stimulatory effects on concanavalin A-induced (ConA-induced) splenocyte proliferation, whereas their effects on pokeweed mitogen-induced (PWM-induced) splenocyte proliferation were inhibitory. The peptides inhibited lipopolysacharide-induced (LPS-induced) tumor necrosis factor alpha production but had little effect on interleukin 6 production. In the model of the humoral immune response in vitro to sheep red blood cells, peptide 1 was distinctly stimulatory in the investigated concentrations (1-100 μg/ml), whereas peptides 3 and 4 only stimulated the number of antibody-forming cells at the highest concentration (100 μg/ml). In the model of the delayed type hypersensitivity in vivo to ovalbumin, the peptides were moderately suppressive (3 being the most active). The reference peptide W1 stimulated ConA-induced cell proliferation at 1–10 μg/ml but was inhibitory at 100 μg/ml. It also inhibited PWM-induced cell proliferation in a dose-dependent manner. This peptide had no effect on the humoral immune response in vitro or on cytokine production, but inhibited DTH reaction in vivo. The relationship between structure and activity, and a possible mode of action of the peptides, is discussed in this paper.

Słowa kluczowe

EN

edeine analogue; mouse; mice; peptide; edeine antibiotic; immune response

• Wydawca: -
• Czasopismo: Cellular and Molecular Biology Letters
• Rocznik: 2007
• Tom: 12
• Numer: 2
• Opis fizyczny: p.149-161,fig.,ref.

Twórcy

autor

Czajgucki Z

• University of Technology, 80-952 Gdansk, Poland

autor

Zimecki M.

autor

Andruszkiewicz R.

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