A study in mice suggests that by infiltrating tumors and ramping up the body’s immune response, a type of gut bacteria could be a valuable ally in cancer treatment. The authors of the new study note that certain bacteria have also demonstrated the ability to improve the efficacy of cancer immunotherapy by activating gut immunity. They report that in their research, they discovered that various species of Bifidobacterium can find their way into gut tumors even after being injected. Once inside the tumors, the bacteria seem to activate the wider immune system and, in the process, enhance a type of cancer treatment called CD47 blockade immunotherapy.
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