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  "path": "/news/2026-03-scientists-track-real-cell-immune.html",
  "publishedAt": "2026-03-18T08:00:01.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "T cell activation—the process by which these key immune defenders recognize threats and mobilize against them—depends on exquisitely timed molecular signals. Now researchers have captured one of the earliest moments of that response in real time, revealing how subtle differences in antigens affect internal signaling patterns that determine whether a T cell fully activates.",
  "title": "Scientists track real-time signaling in T cell activation to show how the immune system defends against threats"
}