Cancer and the nervous system are far more connected than scientists once thought. The emerging field of cancer neuroscience explores how nerves, neurotransmitters and neural signals can influence tumor growth, immune responses and metastasis. Tumors can even release molecules such as NGF and BDNF that encourage new nerve fibers to grow into the tumor, creating a feedback loop that may support cancer progression. Nerves can also provide pathways for cancer cells to invade surrounding tissues, while stress-related hormones such as adrenaline and noradrenaline may promote tumor growth and immune evasion. Researchers are now investigating whether targeting nerve-tumor communication could complement existing cancer treatments, opening a promising new direction in oncology.
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