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The study investigates how protective anti-tumor immunity relates to cytotoxic T-cell activity against metastases.

Tumor metastases and cell‐mediated immunity in a model system in DBA/2 mice. VI. Similar specificity patterns of protective anti‐tumor immunity in vivo and of cytolytic T cells in vitro

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The study investigates how protective anti-tumor immunity relates to cytotoxic T-cell activity against metastases.
Utilized a defined syngeneic tumor model with non-metastatic (Eb) and metastatic (ESb) variants.
Conducted tumor protection experiments to identify TATAs on tumor cells.
Generated tumor-specific cytotoxic T lymphocytes after in vivo sensitization and in vitro restimulation.
Protection against Eb was significantly stronger than against ESb, indicating distinct immune responses.
Both anti-Eb and anti-ESb CTLs demonstrated high cytolytic activity against autologous tumors in vitro.
Only one out of fourteen unrelated tumors showed cross-reactivity with Eb, further aligning TATAs with cytotoxic responses.

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Randomized trial analyzes tumor immunity dynamics in DBA/2 mice, suggesting T cells are crucial for protection.

Bosslet et al. (1979) studied this question.

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