*2.11. Statistical Analyses*

Data are shown as mean and standard deviation. Analysis and figures were performed by GRAPHPAD PRISM version 5 (Graphpad software, La Jolla, CA, USA) and SPSS Statistics, version 25 (IBM software, Armonk, NY, USA). Gene expressions of ERAP2/iso1, ERAP2/iso1, and ERAP1 in PBMCs, monocyte-derived macrophages, and Calu-3 cells upon stimulation were compared to that of untreated cells by Wilcoxon test and Mann–Whitney test, as appropriate. P-values were corrected for false discovery rate (FDR) by using Microsoft R software, *p*-values ≤ 0.005 were considered to be significant.
