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  "path": "/news/2026-02-mechanism-immunotherapy-resistance-lung-cancer.html",
  "publishedAt": "2026-02-19T18:40:01.000Z",
  "site": "https://medicalxpress.com",
  "tags": [
    "Oncology & Cancer"
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  "textContent": "Mayo Clinic researchers and collaborators have identified a previously unrecognized way lung tumors weaken the immune system, helping explain why many patients do not respond to immunotherapy and pointing to a potential new approach to make those treatments more effective.",
  "title": "Mechanism behind immunotherapy resistance in lung cancer identified"
}