Molecular, anatomical, and functional organization of lung interoceptors

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bioRxiv. 2021 Jul;. doi: 10.1101/2021.11.10.468116

Molecular, anatomical, and functional organization of lung interoceptors Liu (Yin) Lab

Liu Y, de Arce AJ, Krasnow MA

Note: Research in this publication was not performed at Janelia.

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Abstract

Interoceptors, sensory neurons that monitor internal organs and states, are essential for physiological homeostasis and generating internal perceptions. Here we describe a comprehensive transcriptomic atlas of interoceptors of the mouse lung, defining 10 molecular subtypes that differ in developmental origin, myelination, receptive fields, terminal morphologies, and cell contacts. Each subtype expresses a unique but overlapping combination of sensory receptors that detect diverse physiological and pathological stimuli, and each can signal to distinct sets of lung cells including immune cells, forming a local neuroimmune interaction network. Functional interrogation of two mechanosensory subtypes reveals exquisitely-specific homeostatic roles in breathing, one regulating inspiratory time and the other inspiratory flow. The results suggest that lung interoceptors encode diverse and dynamic sensory information rivaling that of canonical exteroceptors, and this information is used to drive myriad local cellular interactions and enable precision control of breathing, while providing only vague perceptions of organ states.Competing Interest StatementThe authors have declared no competing interest.

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Molecular, anatomical, and functional organization of lung interoceptors

Note: Research in this publication was not performed at Janelia.

Abstract

Janelia Authors