Overview
- The peer-reviewed Nature Communications study from Duke reports that ascites shields ovarian cancer cells from ferroptosis, a form of iron-driven membrane damage that kills vulnerable cells.
- Tests on cancer cell lines and patient-derived cells showed that as little as 2% ascites blocked ferroptosis and that the protection did not extend to other cell-death pathways.
- Removing fats from the fluid erased the effect, identifying lipids as the critical component that enables tumor survival in the abdomen.
- The older cholesterol drug bezafibrate restored sensitivity to ferroptosis only when ascites was present, and it neither killed cancer cells on its own nor slowed tumor growth in mice.
- The findings support testing ways to change this fluid to help existing treatments work better, a priority because ascites is common in advanced disease and is currently drained mainly to ease symptoms.