Cancer uses antioxidants to disarm the immune system, scientists discover

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.

Nov 11, 2026 - 12:00
Cancer uses antioxidants to disarm the immune system, scientists discover
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.

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