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  "path": "/news/2026-06-hidden-thymus-prime-cancer-cells.html",
  "publishedAt": "2026-06-25T11:40:02.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "Researchers at Mayo Clinic have uncovered a previously hidden step in how the immune system prepares to fight cancer, a discovery that could help scientists develop more effective and longer-lasting cancer immunotherapies.",
  "title": "Hidden thymus step may prime cancer-killing T cells earlier than expected"
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