CXCL8 and breast cancer: Supplementation of 2.5% BC incurred a positive correlation between IL-8 and Ruminococcus, whereas, with a 5% BC diet, Dubosiella was positively correlated with IL-8 and IL-10, Metanobrevibacter was positively correlated with IL-10, and Muribaculaceae and Rikenellaceae were negatively correlated with TGF-β (Figure 7).