Fructose Helps Ovarian Cancer Spread After Chemo
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- The Wistar Institute researchers found that chemotherapy-surviving ovarian cancer cells release fructose as a signaling molecule, which prompts nearby tumor cells to loosen and spread.
- Fructose reduces cholesterol production in neighboring cancer cells, weakening cell-to-cell adhesion and enabling detachment—a key step in metastasis within the abdominal cavity.
- Dietary fructose at levels comparable to sugary drinks was shown to encourage cancer cell spread even without prior chemotherapy, suggesting lifestyle factors may influence disease progression.
- Statins, widely used cholesterol-lowering drugs taken by 39 million people in the U.S., mimicked fructose’s effect by weakening cellular bonds and increasing cancer cell mobility in lab models.
- Katherine Aird emphasized that while findings raise questions about combining statins with chemotherapy, patients should not stop prescribed medications, as effects remain untested in humans.
- Aidan Cole demonstrated that molecules secreted by non-dividing, therapy-surviving cells—not the cells themselves—can drive metastasis in a preclinical model, a first-of-its-kind observation.
Why it matters: Postmenopausal ovarian cancer patients often take statins, and this study shows those drugs may unintentionally promote cancer spread by reducing cholesterol needed for cell adhesion—potentially altering how combination therapies are designed if confirmed in humans.
