FLT3LG and neoplasm: Among the 1013 unpaired tumor samples and 397 normal tissue samples from the TCGA and GTEx combined data, we found that FLT3LG was expressed at significantly lower levels in both LUAD and LUSC tissues than in normal lung tissues; these results were similar to those of the analysis of 58 paired LUAD and 49 paired LUSC samples (Fig. 1c and d).