CD274 and hepatocellular carcinoma: Golgi membrane protein 1 (GOLM1) has been found to be positively correlated with infiltrating TAMs expressing high levels of PD‐L1 and CD8 T cell suppression in HCC tissues.[48] GOLM1 can regulate the exocytosis activities by promoting the cargo transportation of exosomes, which will promote the delivery of PD‐L1 to the macrophages equipped with the exosome carrier.