Mrgprs on vagal sensory neurons contribute to bronchoconstriction and airway hyper-responsiveness

Nat Neurosci. 2018 Mar;21(3):324-328. doi: 10.1038/s41593-018-0074-8. Epub 2018 Feb 5.

Abstract

Asthma, accompanied by lung inflammation, bronchoconstriction and airway hyper-responsiveness, is a significant public health burden. Here we report that Mas-related G protein-coupled receptors (Mrgprs) are expressed in a subset of vagal sensory neurons innervating the airway and mediates cholinergic bronchoconstriction and airway hyper-responsiveness. These findings provide insights into the neural mechanisms underlying the pathogenesis of asthma.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anaphylaxis / physiopathology
  • Animals
  • Asthma / genetics*
  • Asthma / physiopathology*
  • Bronchoconstriction*
  • Calcium Signaling
  • Guinea Pigs
  • Humans
  • Mice
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Parasympathetic Nervous System / physiopathology
  • Plethysmography
  • Receptors, G-Protein-Coupled / genetics*
  • Respiratory Hypersensitivity / genetics*
  • Respiratory Hypersensitivity / physiopathology*
  • Respiratory Mechanics
  • Sensory Receptor Cells*
  • Vagus Nerve / physiopathology*

Substances

  • Receptors, G-Protein-Coupled