A common probiotic bacterium found in yogurt and supplements may help the immune system fight melanoma, according to a study published in a peer-reviewed journal. Researchers reported that Bifidobacterium animalis produces a natural sugar called mannose that appears to enhance the ability of immune cells to target and slow tumor growth.
The findings are based on laboratory cell cultures and experiments in mice with melanoma tumors. The study adds to a growing body of evidence linking the gut microbiome to immune function, according to the researchers. They stated that the bacterium’s anti-tumor effect depends on the activation of CD8+ T cells, which are immune cells that attack cancer cells.
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