When PD‐L1 and CD47 are both over expressed on tumour cells, PD‐L1 sends a ‘don't find me’ signal to the adaptive immune system and CD47 sends a ‘don't eat me’ signal to the innate immune system (Majeti et al., 2009; Tsushima et al., 2007). The gene discussed is CD47; the disease is neoplasm.