CD47 has been identified to be an adverse prognostic factor among various cancers including gastric cancer42, oral squamous cell carcinoma23, nasopharyngeal carcinoma24, triple-negative breast cancers25, ovarian carcinoma26, and non-small cell lung cancer27, while high expression of CD47 was a favorable prognostic factor in cutaneous melanoma43. This evidence concerns the gene CD47 and cancer.