Certain cancer drugs may need gut bacteria to work

Two studies suggest that intestinal bacteria may increase the effectiveness of certain types of cancer treatments. National Cancer Institute researchers tested an immunotherapy and a platinum chemotherapy and found that both were less effective in mice that had no bacteria in their guts. A separate study from researchers at the French National Institute of Health and Medical Research (Inserm) found something similar in mice when testing the drug cyclophosphamide. Read more here.