Scientists discover a hidden immune weapon against deadly lung cancer — SkimNews
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- Gamma delta T cells can identify and kill small cell lung cancer cells in lab models, overcoming the tumor's ability to hide from conventional immune cells, according to WEHI researchers.
- WEHI researchers analyzed data from the IMpower133 and CASPIAN immunotherapy trials and found patients with stronger gamma delta T cell activity had better treatment outcomes.
- Zoledronate and tarlatamab enhanced the cancer-killing ability of gamma delta T cells in experiments, with zoledronate increasing cell numbers and tarlatamab improving tumor targeting.
- Miniature tumors grown from patient samples revealed that gamma delta T cells effectively attacked small cell lung cancer, providing a realistic model for testing immune responses.
- Dr. Jin Ng stated that methods to expand and reinfuse gamma delta T cells already exist, raising the possibility of rapidly developing new adoptive cell therapies for small cell lung cancer.
Why it matters: Fewer than 7% of small cell lung cancer patients survive five years, and immunotherapy has helped only a small fraction. This discovery identifies a functional immune pathway that bypasses tumor evasion, and because existing drugs enhance it, clinical translation could be faster than for novel therapies—offering tangible hope for a disease with minimal treatment advances.
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