CTSF and asthma: KEGG analysis demonstrated genes co-expressed positively with CTSF in LUAD were primarily enriched in Valine, leucine and isoleucine degradation, Asthma and Cell adhesion molecules (CAMs), while genes co-expressed negatively with CTSF in LUAD were primarily enriched in Cell cycle, ribosome biogenesis in eukaryotes, spliceosome, RNA transport, proteasome and others (Fig. 3D).