RELA and neoplasm: Despite significant upregulation of RELA expression in the ERVK-7.long high group, comparison of RELA expression among LUAD, LUSC, and normal samples revealed no significant changes or even higher expression in normal tissue (Fig. S9A; mean [LUAD tumor] = 6.22, mean [LUSC tumor] = 6.27, mean [normal] = 6.29; Student t test, p value [LUAD tumor versus normal] = 0.09034, p value [LUSC tumor versus normal] = 0.5874).