In vitro studies have shown that CSNK1G2-AS1 could suppress TGCT cells apoptosis but promote colony formation, migration, and invasion of TGCT cells through the AKT and EMT signaling pathways, suggesting that CSNK1G2-AS1 may play a critical role in the development and metastasis of TGCT cells. Here, CSNK1G2 is linked to testicular germ cell tumor.