IHC staining of CXCL16 in a tumour tissue microarray consisting of 144 human breast cancers showed that high fibroblast expression of CXCL16, correlated significantly to TN breast tumours (P=0.010), while CXCL16 expression in the malignant cells per se did not (Table 1). The gene discussed is CXCL16; the disease is breast cancer.