Cholinergic receptor, nicotinic, alpha 6, also known as nAChRα6, is a protein that in humans is encoded by the CHRNA6gene.[1] The CHRNA6 gene codes for the α6 nicotinic receptor subunit that is found in certain types of nicotinic acetylcholine receptors found primarily in the brain. Neural nicotinic acetylcholine receptors containing α6 subunits are expressed on dopamine-releasing neurons in the midbrain,[2] and dopamine release following activation of these neurons is thought to be involved in the addictive properties of nicotine.[3][4][5] Due to their selective localisation on dopaminergic neurons, α6-containing nACh receptors have also been suggested as a possible therapeutic target for the treatment of Parkinson's disease.[6][7]
↑Calabresi P, Massimiliano D (Oct 2008). "ACh/Dopamine Crosstalk in Motor Control and Reward: A Crucial Role for α6-Containing Nicotinic Receptors?". Neuron. 60 (1): 4–7. doi:10.1016/j.neuron.2008.09.031. PMID18940582.
↑Exley R, Clements MA, Hartung H, McIntosh JM, Cragg SJ (2008). "Alpha6-containing nicotinic acetylcholine receptors dominate the nicotine control of dopamine neurotransmission in nucleus accumbens". Neuropsychopharmacology. 33 (9): 2158–66. doi:10.1038/sj.npp.1301617. PMID18033235.
↑Quik M, McIntosh JM (2006). "Striatal alpha6* nicotinic acetylcholine receptors: potential targets for Parkinson's disease therapy". The Journal of Pharmacology and Experimental Therapeutics. 316 (2): 481–9. doi:10.1124/jpet.105.094375. PMID16210393.
↑Bordia T, Grady SR, McIntosh JM, Quik M (2007). "Nigrostriatal damage preferentially decreases a subpopulation of alpha6beta2* nAChRs in mouse, monkey, and Parkinson's disease striatum". Molecular Pharmacology. 72 (1): 52–61. doi:10.1124/mol.107.035998. PMID17409284.
Further reading
Zeiger JS, Haberstick BC, Schlaepfer I, et al. (2008). "The neuronal nicotinic receptor subunit genes (CHRNA6 and CHRNB3) are associated with subjective responses to tobacco". Hum. Mol. Genet. 17 (5): 724–34. doi:10.1093/hmg/ddm344. PMID18055561.
Keiger CJ, Case LD, Kendal-Reed M, et al. (2003). "Nicotinic cholinergic receptor expression in the human nasal mucosa". Ann. Otol. Rhinol. Laryngol. 112 (1): 77–84. PMID12537063.
Ebihara M, Ohba H, Ohno SI, Yoshikawa T (2003). "Genomic organization and promoter analysis of the human nicotinic acetylcholine receptor alpha6 subunit (CHNRA6) gene: Alu and other elements direct transcriptional repression". Gene. 298 (1): 101–8. doi:10.1016/S0378-1119(02)00925-3. PMID12406580.
Graham A, Court JA, Martin-Ruiz CM, et al. (2002). "Immunohistochemical localisation of nicotinic acetylcholine receptor subunits in human cerebellum". Neuroscience. 113 (3): 493–507. doi:10.1016/S0306-4522(02)00223-3. PMID12150770.
Le Novère N, Zoli M, Changeux JP (1997). "Neuronal nicotinic receptor alpha 6 subunit mRNA is selectively concentrated in catecholaminergic nuclei of the rat brain". Eur. J. Neurosci. 8 (11): 2428–39. doi:10.1111/j.1460-9568.1996.tb01206.x. PMID8950106.
Elliott KJ, Ellis SB, Berckhan KJ, et al. (1997). "Comparative structure of human neuronal alpha 2-alpha 7 and beta 2-beta 4 nicotinic acetylcholine receptor subunits and functional expression of the alpha 2, alpha 3, alpha 4, alpha 7, beta 2, and beta 4 subunits". J. Mol. Neurosci. 7 (3): 217–28. doi:10.1007/BF02736842. PMID8906617.