To this end, RNA-seq data from seven ex vivo cultured SCLC patient-derived xenograft (PDX) samples and control groups, obtained from the NCBI-GEO (Gene Expression Omnibus) database under the study titled ‘Targeting NOTCH activation in small cell lung cancer through LSD1 inhibition’, were analyzed using bioinformatics methods. Here, KDM1A is linked to small cell lung carcinoma.