| Serotonin Neurons | |
|---|---|
| Lineage | Neuron > Serotonergic |
| Markers | TPH2, SLC6A4, SLC18A2, HTR1A, HTR2A, PET1, LMX1B |
| Brain Regions | Dorsal raphe nucleus, Median raphe nucleus, Brainstem |
| Disease Vulnerability | [Parkinson's Disease](/diseases/parkinsons-disease), [Alzheimer's Disease](/diseases/alzheimers), [Depression](/diseases/depression), [FTD](/diseases/ftd) |
Serotonin Neurons is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Serotonin Neurons are specialized neuroendocrine cells that produce and release the neurotransmitter serotonin (5-hydroxytryptamine, 5-HT).[1] These neurons are primarily located in the raphe nuclei of the brainstem and project diffusely to virtually all brain regions, making them central modulators of brain function.[2]
Serotonin neurons play crucial roles in regulating mood, sleep, appetite, cognition, and pain perception. Their widespread projections allow them to influence virtually every aspect of brain function.[3]
Serotonin neurons are identified by expression of:
Serotonin neurons are located primarily in the raphe nuclei and perform essential functions:
Serotonin neurons are affected in PD:
The study of Serotonin Neurons has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Jacobs BL, Azmitia EC. Structure and function of the brain serotonergic system. Physiol Rev. 1992. ↩︎
Descarries L, et al. Regional and laminar distribution of the serotonin and dopamine innervation in the adult rat cerebral cortex. Neuroscience. 2010. ↩︎
Berger M, et al. The expanded biology of serotonin. Annu Rev Med. 2009. ↩︎
Walther DJ, et al. Synthesis of serotonin by a second tryptophan hydroxylase isoform. Science. 2003. ↩︎
Halliday GM, et al. Neuropathology of serotonergic neurons in Parkinson's disease. Mov Disord. 1990. ↩︎
Carta M, et al. Serotonergic regulation of motor corticostriatal plasticity. Neuroscience. 2007. ↩︎
Politis M, Niccolini F. Serotonin in Parkinson's disease. Behav Brain Res. 2015. ↩︎
Jellinger KA. Pathology of Parkinson's disease. Mol Chem Neuropathol. 1991. ↩︎
Palmer AM, et al. Neurotransmitter abnormalities in Alzheimer's disease. Lancet. 1987. ↩︎
Lyketsos CG, et al. Treating depression in Alzheimer disease: efficacy and safety of sertraline and venlafaxine. Am J Geriatr Psychiatry. 2006. ↩︎