# Cancer uses antioxidants to disarm the immune system, scientists discover > HelixNews · Web page: https://helixnews.one/story/448653 · All pages for agents: https://helixnews.one/llms.txt 1 outlet covering · First listed: ScienceDaily, Nov 10, 2026, 5:33 AM · Read it: 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. ## Who's covering it In the order they published: - Nov 10, 2026, 5:33 AM: [Cancer uses antioxidants to disarm the immune system, scientists discover]() — ScienceDaily (Science news, United States) 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.