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Gut Bacteria Can Penetrate Tumors and Aid Cancer Therapy, Study Suggests

Researchers at the University of Texas Southwestern Medical Center and University of Chicago have discovered that bacteria that usually live in the gut can accumulate in tumors and improve the effectiveness of immunotherapy in mice. The study, which will be published March 6 in the Journal of Experimental Medicine (JEM), suggests that treating cancer patients with Bifidobacteria might boost their response to CD47 immunotherapy, a wide-ranging anti-cancer treatment that is currently being evaluated in several clinical trials.  CD47 is a protein expressed on the surface of many cancer cells, and inhibiting this protein can allow the patient’s immune system to attack and destroy the tumor. Antibodies targeting CD47 are currently being tested as treatments for a wide variety of cancers in multiple clinical trials. But studies with laboratory mice have so far yielded mixed results: some mice seem to respond to anti-CD47 treatment, while others do not.  Read more....

 

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