T cell behavior determines which tumors respond to treatment

Immunotherapy unleashes the power of the immune system to fight cancer. However, for some patients, immunotherapy doesn't work, and new research may help explain why. When immune cells called T lymphocytes infiltrate malignant tumors, the genetic program of those T cells and the developmental path they then follow, may affect their response to immunotherapy and predict overall patient survival, according to a new study. The results overturn the prevailing model of immune responses in melanoma and present different therapeutic approaches.

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