We detected Lactobacillaceae (Firmicutes phylum), Acetobacterraceae, and Xanthomonadaceae (both Proteobacteria phylum) as more abundant families (> 2%) and Acetobacter and Liquorilactobacillus as the more abundant genera in the normal breast as compared to both the NAT and tumor samples. This evidence concerns the gene BRD2 and neoplasm.