Project description:Energy homeostasis requires precise measurement of the quantity and quality of ingested food. The vagus nerve innervates the gut and can detect diverse interoceptive cues, but the identity of the key sensory neurons and corresponding signals that regulate food intake remains unknown. Here we use an approach for target-specific, single-cell RNA sequencing to generate a map of the vagal cell types that innervate the gastrointestinal tract. We show that unique molecular markers identify vagal neurons with distinct innervation patterns, sensory endings, and function. Surprisingly, we find that food intake is most sensitive to stimulation of mechanoreceptors in the intestine, whereas nutrient-activated mucosal afferents have no effect. Peripheral manipulations combined with central recordings reveal that intestinal mechanoreceptors, but not other cell types, potently and durably inhibit hunger-promoting AgRP neurons in the hypothalamus. These findings identify a key role for intestinal mechanoreceptors in the regulation of feeding.

2019-11-14 | GSE138651 | GEO

Single nucleus RNA sequencing analysis of vagal sensory neurons

Project description:We report that molecularly distinct populations of vagal sensory neurons would play a role in causing differences in metabolic homeostasis between the sexes.

2024-05-10 | GSE267231 | GEO

Transcriptional profiling of individual airway projecting vagal sensory neurons

Project description:Mammalian airways and lungs are richly innervated by bronchopulmonary sensory neurons, the vast majority of which are derived from the vagal sensory ganglia. In the present study we set out to perform high coverage single cell RNA sequencing on a population of identified murine bronchopulmonary sensory neurons collected from the vagal sensory ganglia to better define the molecular expression profiles of these cell types. Given the importance of P2X2 in differentiating nodose from jugular sensory neurons, we further aimed to investigate the relationship between transcriptional expression of identified genes and P2X2 expression.

2019-07-16 | GSE134260 | GEO

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

Project description: Not available

| S-EPMC5857222 | biostudies-literature

Expression of neuronal nicotinic acetylcholine receptors in rat vagal pulmonary sensory neurons.

Project description: Not available

| S-EPMC4445079 | biostudies-literature