Recruitment of GABAA receptors in chemoreceptor pulmonary neuroepithelial bodies by prenatal nicotine exposure in monkey lung

X. W. Fu, Eliot Spindel

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Citations (Scopus)

    Abstract

    Pulmonary neuroepithelial bodies (NEB) act as airway oxygen sensors and produce serotonin, a variety of neuropeptides and are involved in autonomic nervous system control of breathing, especially during the neonatal period. We now report that NEB cells also express a GABAergic signaling loop that is increased by prenatal nicotine exposure. In this study, cultured monkey NEB cells show hypoxia-evoked action potentials and hypoxia-sensitive K+ current. As shown by both immunofluorescence and RT-PCR, monkey NEB cells synthesize and contain serotonin. The monkey NEB cells express the β2 and β3 GABAA receptor subunits, GAD and also express α7, α4 and β4 nicotinic receptor (nAChR) subunits. The α7 nAChR is co-expressed with GAD in NEB. The numbers of NEB and β3 GABAA receptor subunits expressed in NEB cells in lungs from control newborn monkeys were compared to lungs from animals that received nicotine during gestation. Prenatal nicotine exposure increased the numbers of NEB by 46% in lung and the numbers of NEB cells expressing GAD and GABAA β3 receptors increased by 67% and 66%, respectively. This study suggests that prenatal nicotine exposure can modulate NEB function by increasing the numbers of NEB cells and by increasing both GAD expression and β3 GABAA receptor subunit expression. The interaction of the intrinsic GABAergic system in the lung with nicotinic receptors in PNEC/NEB may provide a mechanism to explain the link between smoking during pregnancy and SIDS.

    Original languageEnglish (US)
    Title of host publicationAdvances in Experimental Medicine and Biology
    Pages439-445
    Number of pages7
    Volume648
    DOIs
    StatePublished - 2009

    Publication series

    NameAdvances in Experimental Medicine and Biology
    Volume648
    ISSN (Print)00652598

    Fingerprint

    Neuroepithelial Bodies
    GABA-A Receptors
    Nicotine
    Haplorhini
    Neuroepithelial Cells
    Lung
    Nicotinic Receptors
    Serotonin
    Oxygen sensors
    Neurology
    Neuropeptides
    Animals
    Cells
    Cell Hypoxia
    Pregnancy
    Sudden Infant Death
    Autonomic Nervous System

    Keywords

    • GABA receptors
    • Hypoxia-sensitive K channel
    • Neuroepithelial bodies
    • Nicotinic acetylcholine receptors

    ASJC Scopus subject areas

    • Biochemistry, Genetics and Molecular Biology(all)
    • Medicine(all)

    Cite this

    Fu, X. W., & Spindel, E. (2009). Recruitment of GABAA receptors in chemoreceptor pulmonary neuroepithelial bodies by prenatal nicotine exposure in monkey lung. In Advances in Experimental Medicine and Biology (Vol. 648, pp. 439-445). (Advances in Experimental Medicine and Biology; Vol. 648). https://doi.org/10.1007/978-90-481-2259-2_50

    Recruitment of GABAA receptors in chemoreceptor pulmonary neuroepithelial bodies by prenatal nicotine exposure in monkey lung. / Fu, X. W.; Spindel, Eliot.

    Advances in Experimental Medicine and Biology. Vol. 648 2009. p. 439-445 (Advances in Experimental Medicine and Biology; Vol. 648).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Fu, XW & Spindel, E 2009, Recruitment of GABAA receptors in chemoreceptor pulmonary neuroepithelial bodies by prenatal nicotine exposure in monkey lung. in Advances in Experimental Medicine and Biology. vol. 648, Advances in Experimental Medicine and Biology, vol. 648, pp. 439-445. https://doi.org/10.1007/978-90-481-2259-2_50
    Fu XW, Spindel E. Recruitment of GABAA receptors in chemoreceptor pulmonary neuroepithelial bodies by prenatal nicotine exposure in monkey lung. In Advances in Experimental Medicine and Biology. Vol. 648. 2009. p. 439-445. (Advances in Experimental Medicine and Biology). https://doi.org/10.1007/978-90-481-2259-2_50
    Fu, X. W. ; Spindel, Eliot. / Recruitment of GABAA receptors in chemoreceptor pulmonary neuroepithelial bodies by prenatal nicotine exposure in monkey lung. Advances in Experimental Medicine and Biology. Vol. 648 2009. pp. 439-445 (Advances in Experimental Medicine and Biology).
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