Natural variation within the neuronal nicotinic acetylcholine receptor cluster on human chromosome 15q24: Influence on heritable autonomic traits in twin pairs

Brinda K. Rana, Jennifer Wessel, Vafa Mahboubi, Fangwen Rao, Jeannine Haeller, Jiaur R. Gayen, Eleazar Eskin, Anne M. Valle, Madhusudan Das, Sushil K. Mahata, Laurent Taupenot, Mats Stridsberg, Todd T. Talley, Michael G. Ziegler, Douglas W. Smith, Nicholas J. Schork, Daniel T. O'Connor, Palmer Taylor

Research output: Contribution to journalArticle

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Abstract

Nicotinic acetylcholine receptors (nAChRs) are combinations of subunits arranged as pentamers encircling a central cation channel. At least nine α and four β subunits are expressed in the central and peripheral nervous systems; their presence in autonomic ganglia, the adrenal medulla, and central nervous system, with accompanying responses elicited by nicotinic agonists, point to their involvement in cardiovascular homeostasis. nAChRs formed by α3, α5, and β4 subunits may regulate blood pressure (BP) by mediating release of catestatin, the endogenous nicotinic antagonist fragment of chromogranin A (CHGA) and potent inhibitor of catecholamine secretion. Genes encoding these subunits (CHRNA3, CHRNA5, and CHRNB4) are clustered on human chromosome 15q24. Because variation in this cluster may alter autonomic regulation of BP, we sequenced ∼15 kilobase pairs in 15q24 containing their coding and 5′- and 3′-untranslated regions in 80 individuals. We identified 63 variants: 25 in coding regions of CHRNA3, CHRNA5, and CHRNB4 and 48 noncoding single-nucleotide polymorphisms (SNPs). Haplotype frequencies varied across ethnic populations. We assessed the contribution of six SNPs in the putative catestatin binding region of CHRNA3 and CHRNB4 to autonomic traits. In twins, catestatin and BP were heritable. CHRNA3 SNPs and haplotypes containing K95K (G285A) associated with circulating plasma catestatin, epinephrine levels, as well as systolic BP, suggesting altered coupling of the nAChRs to BP. Studies of chromaffin cells in vitro reveal that nicotinic agonist stimulation releases catecholamines and CHGA, a process augmented by overexpression of CHRNA3 and blocked by catestatin. These cellular events suggest a homeostatic mechanism underlying the pleiotropic actions of CHRNA3 genetic variation on autonomic function observed in twins.

Original languageEnglish (US)
Pages (from-to)419-428
Number of pages10
JournalJournal of Pharmacology and Experimental Therapeutics
Volume331
Issue number2
DOIs
StatePublished - Nov 2009
Externally publishedYes

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Nicotinic Receptors
Human Chromosomes
Blood Pressure
Nicotinic Agonists
Single Nucleotide Polymorphism
Chromogranin A
Haplotypes
Catecholamines
Central Nervous System
Autonomic Ganglia
Nicotinic Antagonists
Chromaffin Cells
Adrenal Medulla
5' Untranslated Regions
Peripheral Nervous System
3' Untranslated Regions
Epinephrine
Cations
Homeostasis
chromogranin A (344-364)

ASJC Scopus subject areas

  • Pharmacology
  • Molecular Medicine

Cite this

Natural variation within the neuronal nicotinic acetylcholine receptor cluster on human chromosome 15q24 : Influence on heritable autonomic traits in twin pairs. / Rana, Brinda K.; Wessel, Jennifer; Mahboubi, Vafa; Rao, Fangwen; Haeller, Jeannine; Gayen, Jiaur R.; Eskin, Eleazar; Valle, Anne M.; Das, Madhusudan; Mahata, Sushil K.; Taupenot, Laurent; Stridsberg, Mats; Talley, Todd T.; Ziegler, Michael G.; Smith, Douglas W.; Schork, Nicholas J.; O'Connor, Daniel T.; Taylor, Palmer.

In: Journal of Pharmacology and Experimental Therapeutics, Vol. 331, No. 2, 11.2009, p. 419-428.

Research output: Contribution to journalArticle

Rana, BK, Wessel, J, Mahboubi, V, Rao, F, Haeller, J, Gayen, JR, Eskin, E, Valle, AM, Das, M, Mahata, SK, Taupenot, L, Stridsberg, M, Talley, TT, Ziegler, MG, Smith, DW, Schork, NJ, O'Connor, DT & Taylor, P 2009, 'Natural variation within the neuronal nicotinic acetylcholine receptor cluster on human chromosome 15q24: Influence on heritable autonomic traits in twin pairs', Journal of Pharmacology and Experimental Therapeutics, vol. 331, no. 2, pp. 419-428. https://doi.org/10.1124/jpet.109.157271
Rana, Brinda K. ; Wessel, Jennifer ; Mahboubi, Vafa ; Rao, Fangwen ; Haeller, Jeannine ; Gayen, Jiaur R. ; Eskin, Eleazar ; Valle, Anne M. ; Das, Madhusudan ; Mahata, Sushil K. ; Taupenot, Laurent ; Stridsberg, Mats ; Talley, Todd T. ; Ziegler, Michael G. ; Smith, Douglas W. ; Schork, Nicholas J. ; O'Connor, Daniel T. ; Taylor, Palmer. / Natural variation within the neuronal nicotinic acetylcholine receptor cluster on human chromosome 15q24 : Influence on heritable autonomic traits in twin pairs. In: Journal of Pharmacology and Experimental Therapeutics. 2009 ; Vol. 331, No. 2. pp. 419-428.
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