Longevity & AgingNeurons Form Real Synapses With Small Cell Lung Cancer Cells
Researchers at the University of Cologne and collaborators discovered that neurons form genuine, functional synapses with small cell lung cancer (SCLC) cells — not just proximity contacts, but structures with presynaptic vesicle release machinery and postsynaptic density components on the tumor side. Using co-culture systems, mouse models, patient tumor samples, and electrophysiology, the team demonstrated that neuronal activity transmits signals directly into SCLC cells, triggering calcium influx and downstream proliferative signaling. Disrupting this neuron-to-tumor synaptic communication reduced cancer cell growth. The findings reveal a previously unknown mechanism by which the nervous system actively drives lung cancer progression, opening potential therapeutic avenues targeting neuro-oncological crosstalk.
