DEFB4A and cancer: CXCL8 and LAPTM5 proteins have been reported to promote cell activity [38,39], TMEM156 and LGALS1 proteins enhance cell invasion [40,41], VIM and LGALS1 proteins induce cell migration [40,42], FABP5 and SRGN proteins activate cancer metastasis [43,44], and the DEFB4A protein regulates immunity [45] in human cancers.