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Many solid tumors, including many cancers of the pancreas, breast, colon and lung, protect themselves with a dense wall of scar-like tissue. That wall keeps the immune system's cancer-killing T cells out. It is a major reason why immunotherapy drugs, which have transformed treatment for some patients, help only a minority of people with solid tumors.

Yesterday · medicalxpress.com

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Scientists have discovered that tumors release natural antioxidants to shut down the immune cells responsible for destroying cancer, exploiting a surprising weakness in the body's defenses. Blocking this mechanism in mice restored immune activity and improved immunotherapy responses, potentially opening a new path toward more effective cancer treatments.

Yesterday · sciencedaily.com · You are reading this one