In support of this initial observation, an extended analysis of the published PARP3 gene expression profile in a larger panel of breast cancer cells from the Cancer Cell line Encyclopedia (CCLE) confirmed a significantly higher expression of PARP3 in the basal B subtype displaying a VIM-high and CDH1-low gene expression signature compared to the luminal subtype (Figure 1C). This evidence concerns the gene PARP3 and breast carcinoma.