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Gut Bacteria Linked to Immune Suppression in Pancreatic Cancer: Study

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Researchers at the University Health Network (UHN) and University of Toronto have shown how probiotic bacteria in the gut could undermine immunity in pancreatic cancer, pointing toward more personalized cancer treatments.

Lactobacillus – a type of bacteria thought to promote gut health – can alter the function of immune cells called macrophages in the pancreatic tumour environment and spur cancer growth, the researchers found. “Most studies focus on positive correlations between the microbiome and cancer outcomes,” said Tracy McGaha, a senior scientist at Princess Margaret Cancer Centre, UHN, and a professor of immunology in U of T’s Temerty Faculty of Medicine. “This work focused on negative correlations of the microbiome with cancer, and suggests that in some conditions, the constituency of the microbiome may have a negative impact.” Read more . . . 

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