Furthermore, the top 15 KEGG pathways for the target genes of miR-125b-5p were enriched in human cytomegalovirus infection, endocytosis, neurotrophin signaling pathway, adherens junction, insulin signaling pathway, non-small cell lung cancer, proteoglycans in cancer, autophagy—animal, MAPK signaling pathway, EGFR tyrosine kinase inhibitor resistance, longevity regulating pathway, chronic myeloid leukemia, PI3K/Akt signaling pathway, and breast cancer and acute myeloid leukemia (Figure 3D). Here, BDNF is linked to breast cancer.