BDNF and cancer: Gene ontology and Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathway analyses showed that the target genes were associated with 19 biological processes, 4 cellular components, 8 molecular functions, and 7 KEGG pathways, including anterior/posterior pattern specification as well as cancer, PI3K-Akt, MAPK, GnRH, and neurotrophin signalling pathways (Jang and Lee 2021).