C1QB and breast cancer: Compared to STA group, 4 genes (Tim-3, P < 0.05; CXCL9, P < 0.01; CD3ε, P < 0.001; C1QB, P < 0.05) in the BC group and 5 genes (Tim-3, P < 0.001; CXCL9, P < 0.01; CD3ε, P < 0.05; C1QB, P < 0.001; PSMB9, P < 0.001) in the OGIs group were significantly up-expressed.