文章基本信息

标题：Input-output signal processing plasticity of vagal motor neurons in response to cardiac ischemic injury
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作者：Jonathan Gorky ; Alison Moss ; Marina Balycheva 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2021
卷号：24
期号：3
页码：1-62
DOI：10.1016/j.isci.2021.102143
语种：English
出版社：Elsevier
摘要：SummaryVagal stimulation is emerging as the next frontier in bioelectronic medicine to modulate peripheral organ health and treat disease. The neuronal molecular phenotypes in the dorsal motor nucleus of the vagus (DMV) remain largely unexplored, limiting the potential for harnessing the DMV plasticity for therapeutic interventions. We developed a mesoscale single-cell transcriptomics data from hundreds of DMV neurons under homeostasis and following physiological perturbations. Our results revealed that homeostatic DMV neuronal states can be organized into distinguishable input-output signal processing units. Remote ischemic preconditioning induced a distinctive shift in the neuronal states toward diminishing the role of inhibitory inputs, with concomitant changes in regulatory microRNAs miR-218a and miR-495. Chronic cardiac ischemic injury resulted in a dramatic shift in DMV neuronal states suggestive of enhanced neurosecretory function. We propose a DMV molecular network mechanism that integrates combinatorial neurotransmitter inputs from multiple brain regions and humoral signals to modulate cardiac health.Graphical abstractDisplay OmittedHighlights•Single cell transcriptomics analysis of hundreds of vagal motor neurons•Input-output signal processing units identified from single neuron states•Remote ischemic preconditioning and cardiac injury counter-shift neuronal states•Putative vagal motor neuron molecular network mechanism to modulate cardiac healthMolecular Physiology ; Neuroscience; Transcriptomics