The NOD SCID Gamma (NSG) mice were used in 14% of the selected studies [17,49,50,53] for the tumor model by cell transplant—75% of these mice showed genetic modifications (NOD.Cg-PrkdcscidIl2rgtm1Wjl/SzJ) [17,49,50] and 25% were wildtypes [53]. Here, CTSG is linked to neoplasm.