Diurnal variation of cellullar populations in mouse tongue epithelium
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE293526 | GEO | 2025/04/06
REPOSITORIES: GEO
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Project description:The tongue is a heavily innervated and vascularized striated muscle that plays an important role in vocalization and swallowing. The surface of the tongue is lined with papillae which contain gustatory cells expressing various taste receptors. There is growing evidence to suggest our perceptions of taste and food preference are remodelled following chronic consumption of western diets rich in carbohydrate and fats. Our sensitivity to taste and also metabolism western diets may be a key factor in the rising prevalence of obesity but a systems-wide analysis is lacking. Here, we defined the proteomic landscape of the mouse tongue and quantified changes following chronic consumption of a chow or western diet for 7 months. We observed a dramatic remodelling of the tongue proteome including changes in fatty acid and mitochondrial metabolism. The expression of several receptors, and metabolic enzymes and hormones were also differentially regulated which is exciting as these may serve as novel therapeutic targets to potentially alter taste perception and food preference to combat obesity.
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Project description:Plasticity in the daily timing of activity has been observed in a wide variety of species, yet the underlying mechanisms driving nocturnality and diurnality remain to be discovered. By regulating how much wheel-running activity will be rewarded with a food pellet, we can manipulate energy balance, and switch mice to be nocturnal or diurnal. Here we present the rhythmic transcriptome of 21 tissues, including 17 brain regions (hypothalamic, thalamic, cortical), sampled every 4 hours over a 24-hour period from nocturnal and diurnal male CBA/CaJ mice. Rhythmic gene expression across tissues comprised a different set of genes with minimal overlap between nocturnal and diurnal mice. We show that genes other than clock genes in the suprachiasmatic nucleus (SCN) of nocturnal and diurnal mice change, and the habenula was the most affected tissue. Our results indicate that adaptive flexibility in daily timing of behavior is supported by gene expression dynamics in many tissues and brain regions, especially in the habenula, which suggests a crucial role for the observed nocturnal-diurnal switch.
2024-02-14 | GSE228967 | GEO
Project description:Most animals restrict their activity to specific part of the day, being either diurnal, nocturnal, or crepuscular. The genetic basis underlying this diurnal preference is largely unknown. Under laboratory conditions, Drosophila melanogaster is crepuscular, showing a bi-modal activity profile. However, recent experiments in our lab indicated that high variability among individuals exist, particularly in strains that derive from different wild populations. By assembling together flies from various geographical strains, we have generated a highly diverse population whose progeny exhibited extreme diurnal preference, including diurnal and nocturnal flies. We have used this population as a starting point for an artificial selection experiment in which we selected males that show the most extreme diurnal preference and mated them to their sisters. The response to selection was strong, and already after 10 selection cycles we obtained highly diurnal (D) and nocturnal (N) strains. Another strain that was not selected and showed intermediate behaviour (crepuscular) served as a control (C). These strains provide us with a unique opportunity to understand the genetics of diurnal preference.
2020-08-17 | GSE116985 | GEO
Project description:We hypothesized that the expression of many genes are dysregulated during oral cancer carcinogenesis. We examined genome-wide transcript levels in normal mouse tongues and the tongue squamous cell carcinomas induced by 4-NQO. The results will provide important information for the diagnosis, prevention, and treatment of human oral cancers, including tongue cancer. Total RNA obtained from normal tongues (not treated with 4-NQO) and tongue squamous cell carcinomas induced by 4-NQO.
2014-07-01 | E-GEOD-54246 | biostudies-arrayexpress
Project description:Spatio-temporal gene expression patterns underlie time-of-the day specific functional specialization of different organs. Although circadian gene expression atlases from model organisms including the nocturnal mouse are available, they are limited to a few peripheral organs. Here we report the circadian transcriptome of 64 different tissues, including 22 different brain regions, sampled every 2 h over 24 h, from the diurnal primate Papio Anubis. We found that the primate genome is vastly rhythmic with up to 67% of genes showing daily rhythms in expression. In addition to the diversity of transcripts in each tissue, the repertoire and phases of expression of cycling transcripts impart another layer of functional specialization to each tissue. Transcripts that are ubiquitously expressed and participate in essential cellular functions are more likely to exhibit rhythmic expression in a tissue-specific manner. At the whole organism level, the peak phases of rhythmic transcripts are largely clustered around dawn and dusk with a "quiescent period" during the first half of the night. Our findings also unveil a different temporal organization of central and peripheral tissues between diurnal and nocturnal animals. This study will contribute significantly to understanding circadian regulation of organs function and contribution of circadian rhythm disruption to diseases.
2018-02-08 | GSE98965 | GEO
Project description:Diurnal variation of cellullar populations in mouse tongue epithelium
| PRJNA1244881 | ENA
Project description:We hypothesized that the expression of many genes are dysregulated during oral cancer carcinogenesis. We examined genome-wide transcript levels in normal mouse tongues and the tongue squamous cell carcinomas induced by 4-NQO. The results will provide important information for the diagnosis, prevention, and treatment of human oral cancers, including tongue cancer.
2014-07-01 | GSE54246 | GEO
Project description:The tongue is a specialized muscular organ that performs multiple essential functions including mastication, deglutition, oral sensation, oral cleansing, airway maintenance and vocalization. In this study, we show Foxf1/Foxf2 serves as key mediators of hedgehog signaling in regulating myoblast migration, differentiation, and intrinsic tongue muscle organization. We took advantage of the Foxf2FLAG mice which carries 3xFLAG epitope-tagged endogenous Foxf2 protein and characterized genome-wide Foxf2 binding sites in the developing tongues using chromatin immunoprecipitation and genome sequencing (ChIP-seq). Further analyses demonstrate that Foxf1/2 transcription factors directly control the expression of Hgf, Tgfb2, and Tgfb3, to regulate tongue myogenesis.
2022-10-14 | GSE195788 | GEO
Project description:The tongue is a unique muscular organ situated in the oral cavity where it is involved in taste sensation, mastication and articulation. As a barrier organ, which is constantly exposed to environmental pathogens,the tongue isexpected to host animmune cell network ensuringlocal immune defence. However, the composition and the transcriptional landscape of the tongue immune system are currently not completely defined. Here we characterised the tissue-resident immune compartment of the murine tongue during development, health anddisease, combining single cell RNA-sequencing with in situ immunophenotyping. We identified distinct local immune cell populations and described two specific subsets of tongue-resident macrophages occupying discrete anatomical niches. Cx3cr1+macrophages were located specifically in the highly innervated lamina propria beneath the tongue epidermis and at times in close proximity to fungiform papillae.Folr2+ macrophages were detected in deeper muscular tissue. The two macrophage subsets originate from a common proliferative precursor during early postnatal development and responded differently to systemic LPSin vivo. Our description of the under-investigated tongue immune system sets a starting point to facilitate research on tongue immune-physiology and pathology including cancer and taste disorders.
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Project description:The tongue is a unique muscular organ situated in the oral cavity where it is involved in taste sensation, mastication and articulation. As a barrier organ, which is constantly exposed to environmental pathogens,the tongue isexpected to host animmune cell network ensuringlocal immune defence. However, the composition and the transcriptional landscape of the tongue immune system are currently not completely defined. Here we characterised the tissue-resident immune compartment of the murine tongue during development, health anddisease, combining single cell RNA-sequencing with in situ immunophenotyping. We identified distinct local immune cell populations and described two specific subsets of tongue-resident macrophages occupying discrete anatomical niches. Cx3cr1+macrophages were located specifically in the highly innervated lamina propria beneath the tongue epidermis and at times in close proximity to fungiform papillae.Folr2+ macrophages were detected in deeper muscular tissue. The two macrophage subsets originate from a common proliferative precursor during early postnatal development and responded differently to systemic LPSin vivo. Our description of the under-investigated tongue immune system sets a starting point to facilitate research on tongue immune-physiology and pathology including cancer and taste disorders.
2022-06-29 | GSE205158 | GEO