Macrophages iron out cancer cells' vulnerability.

Malignant pancreatic ductal adenocarcinoma (PDAC) cells can survive by sequestering reactive iron, enabling persistence despite toxic intracellular metabolites.

• Why it matters: Cancer evolution is linked to the ability to withstand toxic buildup inside cells, but the specific iron-handling mechanism supporting malignant survival was unclear.
• What they did: Eric Cheung and coworkers identified a mechanism in malignant PDAC cells focused on sequestration of reactive iron as the survival strategy.
• The result: The work links reactive iron sequestration to PDAC cell survival, suggesting a targetable vulnerability in malignant pancreatic cancer cells.

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