HMGCR and breast cancer: Previous studies, in which HMGCR protein levels were associated with favorable clinicopathological characteristics (Borgquist et al. 2008; Gustbée et al. 2015), have been challenged by gene expression data, although a more recent study again associates HMGCR expression with better clinical parameters (Yulian et al. 2023), proving that the relationship between HMGCR and prognosis in BC is still controversial.