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A spatial and projection-based transcriptomic atlas of paraventricular hypothalamic cell types
Journal article   Open access   Peer reviewed

A spatial and projection-based transcriptomic atlas of paraventricular hypothalamic cell types

Yuxi Li, Trevor C. Butler, Stefano Nardone, Christopher L. Jacobs, Amelia M. Douglass, Joseph C. Madara, Miriam C. McDonough, Jenkang Tao, Elijah D. Lowenstein, Luhong Wang, …
Cell reports (Cambridge), Vol.45(2), 116904
02/01/2026
DOI: 10.1016/j.celrep.2025.116904
PMID: 41581146
url
https://doi.org/10.1016/j.celrep.2025.116904View
Published (Version of record) Open Access

Abstract

The paraventricular hypothalamus (PVH) controls behavioral and physiologic processes, including appetite, social behavior, autonomic outflow, and pituitary hormone secretion. However, molecular markers for centrally projecting PVH neuron populations remain largely undefined, and a complete census of PVH cell types has not been established. Therefore, we performed extensive single-cell/nucleus RNA sequencing to catalog PVH neuron subtypes and multiplexed error-robust fluorescence in situ hybridization (MERFISH) to map them spatially. Our spatial transcriptomic atlas resolves 26 Sim1+ and 29 GABAergic neuron populations from the PVH and surrounding areas. Additionally, projection-based profiling identified neurons that project to the parabrachial region (PB) and spinal cord, helping to determine PVH populations that regulate satiety and sympathetic nervous system activity, respectively. Notably, activation of PB-projecting PVH neurons expressing Brs3 reduces food intake, and silencing them causes obesity. Together, this atlas contributes high-resolution PVH spatial and circuit-based gene expression profiles, representing a valuable resource for the field of homeostasis. [Display omitted] •Spatial transcriptomic characterization of neurons from the PVH and surrounding areas•Distinct transcriptional programs define neuroendocrine and centrally projecting PVH neurons•Projection-based snRNA-seq reveals putative PVH regulators of sympathetic drive and feeding•PVHBrs3 neurons regulate body weight and reduce feeding via projections to the parabrachial Li et al. present a spatial transcriptomic atlas of the mouse paraventricular hypothalamus (PVH) and provide molecular markers for parabrachial- and spinal cord-projecting PVH populations. They further show that Brs3-expressing PVH neurons regulate satiety, as they co-express Mc4r, cause weight gain when silenced, and reduce food intake via parabrachial projections.
Brs3 hunger Mc4r parabrachial paraventricular hypothalamus satiety single-cell RNA-seq spatial transcriptomics spinal cord sympathetic nervous system

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