Authors: Schuller HM
Abstract
Exposure to tobacco products is responsible for the majority of all human cancers. Nicotinic acetylcholine receptors (nAChRs) were identified as early as 1989 as important regulators of cancer cells. In analogy to its function in the brain, the homomeric a7nAChR has "accelerator function" on the most common human cancers by stimulating the synthesis and release of excitatory neurotransmitters (serotonin in small cell lung cancer, noradrenaline/adrenaline in most other cancers) that drive cell proliferation, migration, angiogenesis, neurogenesis and metastasis while inhibiting apoptosis. These effects are not only caused by a7nAChRs expressed in cancer cells but also by a7nAChRs in ganglia and nerves of the sympathetic part of the autonomic nervous syst...

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