Chemotherapy-Induced Senescence Promotes Ovarian Cancer Spread Through Metabolic Changes
Recent research has highlighted a concerning mechanism by which chemotherapy, specifically cisplatin, may inadvertently promote the spread of high-grade serous ovarian cancer (HGSOC). The study reveals that cisplatin induces a state of cellular senescence, leading to the secretion of factors known as the senescence-associated secretory phenotype (SASP). This SASP facilitates the detachment and dissemination of cancer cells, contributing to metastasis. The research utilized RNA sequencing to identify senescence signatures in ovarian cancer cells post-chemotherapy, showing increased senescence in both malignant and stromal cells. The study further demonstrated that the SASP, particularly when induced by cisplatin, enhances the detachment of cancer cells, thereby promoting their spread within the body. This effect is mediated through metabolic reprogramming, specifically involving the metabolic component fructose, which was found to increase in the SASP and facilitate cell detachment. 
