Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA379821 | ENA |
REPOSITORIES: ENA
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Project description:Epidemiologic and animal studies implicate overconsumption of fructose in the development of non-alcoholic fatty liver disease, but the molecular mechanisms underlying fructose-induced chronic liver diseases remains largely unknown. We present evidence supporting the essential function of the lipogenic transcription factor ChREBP in mediating adaptation response to fructose and protecting against fructose-induced hepatotoxicity. High-fructose diet (HFrD) activates hepatic lipogenesis via a ChREBP-dependent manner in wildtype mice, while inducing steatohepatitis in Chrebp-KO mice. In Chrebp-KO mouse livers, HFrD reduces levels of molecular chaperones and activates the CHOP-dependent unfolded protein response, whereas administration of chemical chaperone or Chop shRNA rescues liver injury. Gene expression profiling revealed elevated expression of cholesterol biosynthesis genes in Chrebp-KO livers after HFrD, in parallel with increased abundance of nuclear SREBP2. genes expression were compared between livers of wildtype mice fed 70%-fructose-diet v.s. regular chow, and between livers of Chrebp-/- mice v.s. wildtype mice fed 70%-fructose-diet.
2017-03-21 | GSE96820 | GEO
Project description:Gene expression altered by Chrebp deficiency and fructose treatment
| PRJNA689855 | ENA
Project description:During pregnancy, a high-fructose diet (HFrD) exacerbates gestational insulin resistance and is associated with an increased risk of gestational diabetes. The relationship between liver ChREBP and gestational insulin resistance remains elusive. To address this question, we fed pregnant mice either a high-fructose diet or a normal diet. On the 17th day of pregnancy, we extracted liver tissue from the mice and conducted comparative transcriptomic analysis to elucidate the alterations in liver ChREBP during gestational insulin resistance.
2024-02-18 | GSE247892 | GEO
Project description:During pregnancy, a high-fructose diet (HFrD) exacerbates gestational insulin resistance and is associated with an increased risk of gestational diabetes. The relationship between liver ChREBP and gestational insulin resistance remains unknown. To address this question, we fed pregnant hChrebp-KO mice and wild-type mice a high-fructose diet, and on the 17th day of pregnancy, we extracted liver tissue from the mice and conducted comparative transcriptomic analysis to elucidate the role of liver ChREBP in gestational insulin resistance."
2024-02-18 | GSE248051 | GEO
Project description:Carbohydrate response element binding protein (ChREBP) is one of the major transcription factors regulating carbohydrate metabolism and lipogenesis.It expresses highly in several tissues including liver, adipose tissue, small intestine,kidney and muscles. Mice with global knockout of ChREBP exhibit intolerance to carbohydrate including glucose and fructose. However, the exact role of liver ChREBP in high carbohydrate stress is not well defined. We used microarrays to exame the changes of gene expression pfofile upon high sucrose (50% glucose and 50% fructose) stress when liver ChREBP was deleted.
2020-01-24 | GSE139937 | GEO
Project description:High-throughput profiling of gene expression in the livers of vervet monkeys fed a high fructose diet or chow diet. Analysis of differentially expressed genes revealed sirtuin signaling and a network of genes regulated by the peroxisome proliferator activated receptor alpha were significantly altered in response to the high fructose diet.
2021-12-15 | GSE176576 | GEO
Project description:Gene expression altered by E4bp4 deficiency of mice on high-fat diet feeding
| PRJNA825073 | ENA
Project description:Intramuscular fat (IMF) content is one of the key factors affecting meat quality. Carbohydrate response element binding protein (ChREBP) can promote glucose metabolism and fat synthesis by activating the expression of glycolysis and lipogenesis-related genes, but its function and regulatory mechanism in IMF are still unclear. This study evaluated the correlation between TG content and ChREBP expression level in muscles of different species to reveal the relationship between ChREBP and IMF. RNA-seq analysis showed that overexpressing ChREBP in C2C12 cells can significantly up-regulate fatty acid synthesis pathways, while significantly down-regulate the expression levels of muscle development pathways and related genes. In vivo, we found that overexpression of ChREBP or activation by fructose significantly increased the triglyceride content of the tibialis anterior muscle (TA) and the IMF content of yellow feather chicken leg and breast muscle in mice. And lipidomics data also found that feeding fructose can change the lipid composition of yellow feather broiler breast muscle and improve the flavor substances. This study demonstrated that ChREBP is a key gene regulating IMF deposition, providing a new target for genetic selection and nutritional regulation of IMF content.
2024-08-08 | GSE228899 | GEO
Project description:Introgressed variants from other species can be an important source of genetic variation because they may arise rapidly, can include multiple mutations on a single haplotype, and have often been pretested by selection in the species of origin. Although introgressed alleles are generally deleterious, several studies have reported introgression as the source of adaptive alleles-including the rodenticide-resistant variant of Vkorc1 that introgressed from Mus spretus into European populations of Mus musculus domesticus. Here, we conducted bidirectional genome scans to characterize introgressed regions into one wild population of M. spretus from Spain and three wild populations of M. m. domesticus from France, Germany, and Iran. Despite the fact that these species show considerable intrinsic postzygotic reproductive isolation, introgression was observed in all individuals, including in the M. musculus reference genome (GRCm38). Mus spretus individuals had a greater proportion of introgression compared with M. m. domesticus, and within M. m. domesticus, the proportion of introgression decreased with geographic distance from the area of sympatry. Introgression was observed on all autosomes for both species, but not on the X-chromosome in M. m. domesticus, consistent with known X-linked hybrid sterility and inviability genes that have been mapped to the M. spretus X-chromosome. Tract lengths were generally short with a few outliers of up to 2.7 Mb. Interestingly, the longest introgressed tracts were in olfactory receptor regions, and introgressed tracts were significantly enriched for olfactory receptor genes in both species, suggesting that introgression may be a source of functional novelty even between species with high barriers to gene flow.
| S-EPMC8784167 | biostudies-literature
Project description:The ketogenic diet has been successful in promoting weight loss among patients that have struggled with weight gain. This is due to the cellular switch in metabolism that utilizes liver-derived ketone bodies for the primary energy source rather than glucose. Fatty acid transport protein 2 (FATP2) is highly expressed in liver, small intestine, and kidney where it functions in both the transport of exogenous long chain fatty acids (LCFA) and in the activation to CoA thioesters of very long chain fatty acids (VLCFA). We have completed a multi-omic study of FATP2-null (Fatp2-/-) mice maintained on a ketogenic diet (KD) or paired control diet (CD), with and without a 24-hour fast (KD-fasted and CD-fasted) to address the impact of deleting FATP2 under high-stress conditions. Control (wt/wt) and Fatp2-/- mice were maintained on their respective diets for 4-weeks. Afterwards, half the population was sacrificed while the remaining were fasted for 24-hours prior to sacrifice. We then performed paired-end RNA-sequencing on the whole liver tissue to investigate differential gene expression. The differentially expressed genes mapped to ontologies such as the metabolism of amino acids and derivatives, fatty acid metabolism, protein localization, and components of the immune system’s complement cascade, and were supported by the proteome and histological staining.
2020-06-10 | GSE152110 | GEO