Immunomodulatory and Inhibitory Effect of Immulina®, and Immunloges® in the Ig-E Mediated Activation of RBL-2H3 Cells. A New Role in Allergic Inflammatory Responses
Cruz Teno, Cristina
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Immulina®, a high-molecular-weight polysaccharide extract from the cyanobacterium Arthrospira platensis (Spirulina) is a potent activator of innate immune cells. On the other hand, it is well documented that Spirulina exerts anti-inflammatory effects and showed promising effects with respect to the relief of allergic rhinitis symptoms. Taking into account these findings, we decided to elucidate whether Immulina®, and immunLoges® (a commercial available multicomponent nutraceutical with Immulina® as a main ingredient) beyond immune-enhancing effects, might also exert inhibitory effects in the induced allergic inflammatory response and on histamine release from RBL-2H3 mast cells. Our findings show that Immulina® and immunLoges® inhibited the IgE-antigen complex-induced production of TNF- , IL-4, leukotrienes and histamine. The compound 48/80 stimulated histamine release in RBL-2H3 cells was also inhibited. Taken together, our results showed that Immulina® and immunLoges® exhibit anti-inflammatory properties and inhibited the release of histamine from mast cells.