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A family of nonclassical class I MHC genes contributes to ultrasensitive chemodetection by mouse vomeronasal sensory neurons

ABSTRACT: We applied the NanoString gene expression platform to total RNA isolated from the vomeronasal mucosa of mice of a strain (∆H2Mv) in which we had excised with chromosome engineering a 530 kb genomic region that encompasses nine non-classical class I MHC genes that are expressed specifically in vomeronasal sensory neurons. At three weeks of age, there is no difference of expression for all Vmn2r genes tested; and at eight weeks of age, there is no difference of expression for the majority of Vmn2r genes.

ORGANISM(S): Mus musculus

PROVIDER: GSE54061 | GEO | 2014/04/09

SECONDARY ACCESSION(S): PRJNA234500

REPOSITORIES: GEO

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A family of nonclassical class I MHC genes contributes to ultrasensitive chemodetection by mouse vomeronasal sensory neurons

Project description:We applied the NanoString gene expression platform to total RNA isolated from the vomeronasal mucosa of mice of a strain (M-bM-^HM-^FH2Mv) in which we had excised with chromosome engineering a 530 kb genomic region that encompasses nine non-classical class I MHC genes that are expressed specifically in vomeronasal sensory neurons. At three weeks of age, there is no difference of expression for all Vmn2r genes tested; and at eight weeks of age, there is no difference of expression for the majority of Vmn2r genes. We designed NanoString probes for one third of the mouse Vmn2r gene repertoire, based on the reference C57BL/6 genome sequence. CodeSet Chanel includes probes for 46 Vmn2r genes and nine non-classical class I MHC H2-Mv genes that are expressed specifically in mouse vomeronasal sensory neurons. Results were analyzed with tTREAT.

2014-04-09 | E-GEOD-54061 | biostudies-arrayexpress

A family of nonclassical class I MHC genes contributes to ultrasensitive chemodetection by mouse vomeronasal sensory neurons.

Project description: Not available

| S-EPMC4050176 | biostudies-literature

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

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

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

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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

single cell RNA sequencing of adult (P60) vomeronasal organ

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Project description:High-throughput sequencing of vomeronasal tissues of adult male and female mice

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

Project description: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.

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Pronounced Strain-Specific Chemosensory Receptor Gene Expression in the Mouse Vomeronasal Organ

Project description:Our study reports strain specific expression and abensce of sexual dimorphic expression in mouse vomeronasal epithelial tissue

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