Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Molecular, Cellular, and Developmental Organization of the Mouse Vomeronasal organ at Single Cell Resolution

ABSTRACT: We have generated single cell transcriptomic atlases of vomeronasal organs (VNO) from juvenile and adult mice. Combined with spatial molecular imaging, we uncover a distinct, previously unidentified class of cells that express the vomeronasal receptors and a population of canonical olfactory sensory neurons in the VNO. High resolution trajectory and cluster analyses reveal the lineage relationship, spatial distribution of cell types, and a putative cascade of molecular events that specify the V1r, V2r, and OR lineages from a common stem cell population. The expression of vomeronasal and olfactory receptors follow power law distributions, but there are high variabilities in average expression levels between individual receptor and cell types. Substantial co-expression is found between receptors across clades, from different classes, and between olfactory and vomeronasal receptors, with nearly half from pairs located on the same chromosome. Interestingly, the expression of V2r, but not V1r, genes is associated with various transcription factors, suggesting distinct mechanisms of receptor choice associated with the two cell types. We identify association between transcription factors, surface axon guidance molecules, and individual VRs, thereby uncovering a molecular code that guides the specification of the vomeronasal circuitry. Our study provides a wealth of data on the development and organization of the accessory olfactory system at both cellular and molecular levels to enable a deeper understanding of vomeronasal system function.

ORGANISM(S): Mus musculus

PROVIDER: GSE252365 | GEO | 2024/02/29

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

single cell RNA sequencing of adult (P60) vomeronasal organ

Project description:The vomeronasal organ of mice consists of two major types of vomeronasal sensory neurons (VSNs) expressing either receptors of the V1R or V2R family. V1R and V2R VSNs form from a common pool of progenitors but have distinct differentiation programs. We analyzed single cell RNA sequencing data of adult VNO and identified differential expression of Notch1 receptor and Dll4 ligand among the neuronal precursors at the VSN dichotomy. We further demonstrated that Notch signaling is required for effective differentiation of V2R+ basal VSNs.

2022-06-06 | GSE190330 | GEO

Gene expression profiling from whole VNOs after tfap2eCre-mediated Smad4 ablation in immature basal vomeronasal neurons and OMPCre-mediated Smad4 ablation in all mature vomeronasal neurons

Project description:The vomeronasal organ (VNO) of mice contains two main types of vomeronasal sensory neurons (VSNs)- Apical and Basal. Apical VSNs express vomeronasal receptors (VRs) of the V1R family and project to the anterior accessory olfactory bulb (AOB) and VSNs in the basal portions of the epithelium express receptors of the V2R family and project to the posterior portion of the AOB. In the vomeronasal epithelium of mice we found active BMP signaling. By generating Smad4 conditional mutants we disrupted canonical TGF-b/BMP signaling in either maturing basal VSNs or in mature apical and basal VSNs.

2019-07-19 | GSE134492 | GEO

Differentially expressed genes in isolated postnatal AP2e WT and null VNOs

Project description:Understanding the molecular mechanisms defining and maintaining the identity of a specific neuronal cell type is a central goal in neuroscience. The vomeronasal organ (VNO) of mice contains hundreds of distinct vomeronasal sensory neurons (VSNs). The VSNs are classified into two major cell types that are segregated in apical and basal regions of the VNO, express vomeronasal receptors of different superfamilies, and send axons to different portions of the accessory olfactory bulb. How apical or basal identity of VSNs is established and maintained is largely unknown. Here we attempt to assess the role of a single transcription factor, AP-2ε, in the VNO of mice. We used microarrays to examine global effect of AP-2ε loss-of-function on gene expression in the vomeronasal organ.

2018-02-03 | GSE110083 | GEO

VNO_MOE_microarrays

Project description:Transcriptional profile of the main olfactory epithelium (MOE) and the vomeronasal organ (VNO) of male wild type mice

2013-12-23 | E-MTAB-2163 | biostudies-arrayexpress

Single cell transcriptomics of vomeronasal neuroepithelium reveals a differential endoplasmic reticulum environment amongst neuronal subtypes

Project description:Specialized chemosensory signals elicit innate social behaviors in individuals of several vertebrate species, a process that is thought to be mediated via the accessory olfactory system (AOS). The AOS comprising the peripheral sensory vomeronasal organ (VNO) has evolved elaborate molecular and cellular mechanisms to detect chemo signals. To gain insight into the cell types, developmental gene expression patterns and functional differences amongst neurons, we performed single cell transcriptomics of the mouse vomeronasal sensory epithelium. Our analysis reveals diverse cell types with gene expression patterns specific to each. Pseudo-time developmental analysis indicates that neurons originating from common progenitors diverge in their gene expression during maturation with transient and persistent transcription factor expression at critical branch points. Comparative analysis across two of the major neuronal subtypes that express divergent GPCR families and the G-protein subunits Gnai2 or Gnao1, reveals significantly higher expression of endoplasmic reticulum (ER) associated genes within Gnao1 neurons. We also specific combinatorial expression pattern of V2R and H2-Mv genes in Gnao1 neurons. These gene expression patterns, along with differential localization of ER chaperones and structural proteins indicate fundamental differences in ER function associated with neuronal differentiation.

2024-02-28 | GSE253252 | GEO

Transcriptional instability prevents dispersion of functional vomeronasal receptor genes [scRNA-seq]

Project description:Rodents perceive pheromones via vomeronasal receptors encoded by the Vr and Fpr gene superfamilies. The evolution of these latter is exceptionally dynamic. We report here that high numbers of V1r pseudogenes are scattered in mammalian genomes, contrasting with the clustered organization of functional V1r and Fpr genes. We also found that V1r pseudogenes are more likely to be expressed when located in a functional V1r gene cluster than when isolated. To explore the potential regulatory role played by the association of functional vomeronasal receptor genes with their clusters, we dissociated the mouse Fpr-rs3 from its native cluster via transgenesis. Singular and specific transgenic Fpr-rs3 transcription was observed in young vomeronasal neurons, but was only transient. Our data point to the existence of transcription stabilizing elements not coupled to vomeronasal gene units but rather associated with vomeronasal gene clusters, and thus explain the evolutionary conserved clustered organization of functional vomeronasal genes.

2022-10-02 | GSE193024 | GEO

Transcriptional instability prevents dispersion of functional vomeronasal receptor genes [rat]

2022-10-02 | GSE190612 | GEO

Transcriptional instability prevents dispersion of functional vomeronasal receptor genes [mouse]

2022-10-02 | GSE190611 | GEO

Following the p63/Keratin5 Basal Cells in the Sensory and Nonsensory Epithelia of The Vomeronasal Organ

Project description:The Vomeronasal organ (VNO) is a part of the accessory olfactory system, which is responsible for detecting pheromones, chemical factors that trigger a spectrum of sexual and social behaviors. The vomeronasal epithelium (VNE) shares several features with the epithelium of the main olfactory epithelium (MOE). However, it is a distinct neuroepithelium populated by chemosensory neurons that differ from the olfactory sensory neurons (OSNs) in cellular structure, receptor expression, and connectivity. The vomeronasal organ of rodents comprises a sensory epithelium and a thin nonsensory epithelium that morphologically resembles the respiratory epithelium. Sox2-positive cells have been previously identified as the stem cell population that gives rise to neuronal progenitors in MOE and VNE. In addition to these, the MOE also comprises p63 positive horizontal basal cells (HBCs), a second pool of quiescent stem cells that become active in response to injury. Immunolabeling against the transcription factor p63, Keratin-5 (Krt5), Krt14 and Krt5Cre tracing experiments highlighted the existence of horizontal basal cells distributed along the basal lamina of the VNO forming from progenitors along the basal lamina oft the marginal zones. Moreover, these experiments revealed that the NSE of rodents is, like the respiratory epithelium, a stratified epithelium where the p63/Krt5+ basal cells self-replicate and give rise to the apical columnar cells facing the lumen of the VNO.

2024-03-11 | GSE247872 | GEO

Proteomic evaluation of urine of the female of domestic dog (Canis familiaris), during different stages of ovarian cycle

Project description:Chemical signals are essential for communication between living organisms. Dogs possess two sensory organs enabling chemical communication; the main olfactory system and the vomeronasal organ (VNO). Besides, contact chemoreception is also pertinent, by which non-volatile molecules, including but not limited to proteins, are recognized as chemical signals. However, non-volatile chemical signals have been sparsely studied in dogs. Therefore, we aimed to examine the urinary proteins of female domestic dogs during estrus and anestrus phases to detect and identify such non-volatile chemical signals.

2023-05-10 | PXD040418 | Pride

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data