ULBP2 and neoplasm: The immunohistochemical scores of both proteins in tumor tissues were statistically higher than those in non-cancerous counterparts: 0.54±0.46 versus 0.14±0.27 for BIGH3 (p<0.0001) and 2.71±0.49 versus 1.89±0.74 for ULBP2 (p<0.0001) (Fig. 2B).