1. Immunostimulatory activity of ConBr: a focus on splenocyte proliferation and proliferative cytokine secretion.
- Author
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de Oliveira Silva F, das Neves Santos P, de Melo CM, Teixeira EH, de Sousa Cavada B, Arruda FV, Cajazeiras JB, Almeida AC, Pereira VA, and Porto AL
- Subjects
- Animals, Cell Proliferation drug effects, Cell Survival drug effects, Cells, Cultured, Concanavalin A pharmacology, Interferon-gamma biosynthesis, Interleukin-10 biosynthesis, Interleukin-2 biosynthesis, Interleukin-6 biosynthesis, Male, Mice, Mice, Inbred BALB C, Nitric Oxide metabolism, Spleen drug effects, Adjuvants, Immunologic pharmacology, Cytokines metabolism, Immunization, Plant Lectins pharmacology, Spleen cytology, Spleen metabolism
- Abstract
Lectins constitute a class of glycoproteins, which are capable of selectively and reversibly binding to carbohydrates, distinguishing small structural differences in complex oligosaccharides. Studies have shown that the binding of lectins to cell-surface carbohydrates can lead to various effects such as cellular proliferation, histamine release and cytokine production. Canavalia brasiliensis lectin (ConBr) is a (D-mannose) D-glucose lectin. In this study, murine splenocytes were cultured to determine the effect of ConBr on cell proliferation, nitric oxide (NO) release and cytokine secretion. In addition, cellular viability assays were performed to evaluate any mitogenic activity induced by this lectin. ConBr significantly increased cell proliferation with minimal cell damage. This lectin was able to induce an increased production of cytokines such as IL-2, IL-6 and IFN-γ and a decreased production of IL- 10. The release of NO was also observed. The results of this study indicate that ConBr could potentially be used as an immunomodulator.
- Published
- 2011
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