The KEGG pathways analysis revealed that NTRK1 was involved in the MAPK signaling pathway (hsa04010), Ras signaling pathway (hsa04014), calcium signaling pathway (hsa04020), PI3K-Akt signaling pathway (hsa04151), apoptosis (hsa04210), neurotrophin signaling pathway (hsa04722), inflammatory mediator regulation of TRP channels (hsa04750), pathways in cancer (hsa05200), transcriptional misregulation in cancer (hsa05202), and central carbon metabolism in cancer (hsa05230). This evidence concerns the gene BDNF and cancer.