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  "path": "/news/2026-04-silent-cell-mutations-years-thyroid.html",
  "publishedAt": "2026-04-14T11:00:08.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "New research suggests that autoimmune diseases may be driven by DNA mutations in immune cells that remove the natural brakes on the immune system. It reveals a previously hidden role for somatic mutations—DNA changes acquired throughout life—in diseases beyond cancer.",
  "title": "Silent B-cell mutations may build for years before thyroid autoimmunity appears"
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