At a protein level, it has been found that B7-H6 is selectively expressed by a variety of malignant tumors, such as lymphoma, leukemia [10], gastric carcinoma [18], astrocytoma [19], cervical carcinoma [20] and is also expressed under inflammatory and stress conditions, but has not been seen in healthy cells [14, 21]. The gene discussed is NCR3LG1; the disease is cancer.