A Common Sugar May Loosen Cancer Cells and Help Them Spread

Key Points:

• Researchers at The Wistar Institute discovered that ovarian cancer cells surviving chemotherapy enter a senescent state but remain metabolically active, releasing fructose which signals nearby tumor cells to detach and spread, potentially driving metastasis.
• The study found that fructose acts as a messenger that reduces cholesterol production in neighboring cancer cells, weakening their adhesion and facilitating their escape from the original tumor, a key step in cancer metastasis.
• Experiments showed that high fructose consumption, comparable to levels in sugary drinks, can promote cancer cell spread even without chemotherapy, raising concerns about dietary fructose’s influence on tumor behavior.
• The research also revealed that statins, cholesterol-lowering drugs commonly used in postmenopausal women, may inadvertently promote ovarian cancer cell detachment, prompting caution about their combined use with chemotherapy.
• The team is investigating whether this fructose-driven mechanism of metastasis applies to other abdominal cancers like pancreatic, colon, and liver cancers, suggesting the findings may have broader implications beyond ovarian cancer.