Circular RNA circHMCU Promotes Breast Tumorigenesis through miR-4458/PGK1 Regulatory Cascade

The expression levels of circHMCU, miR-4458, and phosphoglycerate kinase 1 (PGK1) were measured by qRT-PCR or western blot. The glucose uptake, lactate production, and ATP level were assayed by related commercial kits.