In order to validate the possible key genes which screened from WGCNA, we explored the top 10 genes, namely, LMO3, PEG3, ASB9, GRB14, REEP1, SLC30A3, LY6K, TMEM59L, and LDHAL6B, in GEO database with the ID GSE69406, which contains three control cell line samples and five NKTCL samples. Here, LY6K is linked to extranodal nasal NK/T cell lymphoma.