STAT3 and breast cancer: By examining the univariate correlation with BC status (Fig. 2h), we found that component 6 (blue boxes), which represented STAT3 phosphorylation (Fig. 2f) in response to IL-10 (Fig. 2d) across many cell types (Fig. 2e), was among the components which separated BC patients from healthy donors most effectively, a difference reflected in our raw data (Fig. 2h, j).