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Exosomal circUBR5 drives metastasis and chemoresistance in gastric signet-ring cell carcinoma by reprogramming cholesterol metabolism through the hsa-miR-1208/CYP19A1 axis and ACAT1 upregulation

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Gastric signet-ring cell carcinoma (GSRCC) exhibits a poor prognosis because of its aggressive behavior and chemoresistance, which is strongly associated with dysregulated cholesterol metabolism. This study investigated the role of circUBR5 in GSRCC progressio... ...