Seesaw configuration of the ODC-OAZ1-AZIN1 axis governs sensitivity to polyamine-targeting inhibitors of breast cancer cells

A polarized seesaw configuration of the ODC-OAZ1-AZIN1 axis is linked to distinct polyamine-targeting inhibitor sensitivities across breast cancer subtypes, enabling reconfiguration to shift resistance.

• Why it matters: Drug sensitivity differences among breast cancer subtypes to polyamine-targeting inhibitors remain poorly explained, despite known subtype-specific responses and perturbation of the ODC-OAZ1-AZIN1 axis.
• What they did: The authors combined large-scale bioinformatic analysis with experimental verification to map ODC-OAZ1-AZIN1 axis configurations across tumor types, then tested how these configurations relate to single and combination PTI treatments.
• The result: The configuration is distinct by breast cancer subtype and associated with unique cellular states, and targeted re-configuration can shift drug sensitivity in resistant cells, supporting a configuration-based framework for PTI regimen selection.

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