Cancer cells use nerves to spread to other parts of the body, and recent studies have uncovered that tumors form a partnership with nerves to promote their growth. Research in 2013 and 2019 revealed that nerve fibers near tumors supply them with neurons to enhance growth, and neural precursor cells in the brain migrate to prostate tumors in mice. Researchers are now attempting to target this relationship between tumors and nerves to stop cancer progression and develop new therapies.