Supercentenarians have an abundance of cancer-killing immune cells
medicalxpress - The human immune system has specialized cells called CD4 cytotoxic T lymphocytes (CD4 CTLs), which have been shown to kill tumor cells in some cancers. When a person gets sick, these cells multiply in a process called clonal expansion to help fight infect…
AI Summary: Analyses of people over 110 reveal an abundance of highly active cytotoxic immune cells capable of recognizing and eliminating cancerous cells, offering clues to extreme longevity. These hypervigilant immune profiles may explain low cancer rates among the very old and suggest immune‑based strategies that could one day mimic their natural defenses.
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