Fig. 1

SRI protein expression in a human tissue microarray detected by immunohistochemistry (IHC). a Representative images of SRI protein expression in malignant tumor tissues, para-tumor tissues, and normal tissues. Scale bar, 50 μm. b Comparison of SRI protein expression between human malignant tumor tissues (n = 54), para-tumor tissues (n = 48), and normal tissues (n = 18). IHC scores of 0, 1, 2, and 3 represent negative, weak-positive, moderate-positive, and strong-positive, respectively. c Comparison of SRI protein expression between human malignant tumor tissues and para-tumor tissues in human different cancers. One circle represents one tissue sample. *P < 0.05; **P < 0.01