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Effects of 20 months Dietary Methionine Restriction on Gene Expression in inguinal white adipose tissue of Fischer 344 Rats

ABSTRACT: Dietary methionine restriction (MR) has been shown to increase lifespan and decrease adiposity in rodents. This study was designed to examine the transcriptional effects of MR in metabolically relevant tissues. This experiment contains data from the inguinal white adipose tissue (IWAT).

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE28599 | GEO | 2013/07/01

SECONDARY ACCESSION(S): PRJNA139099

REPOSITORIES: GEO

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Effects of 20 months Dietary Methionine Restriction on Gene Expression in inguinal white adipose tissue of Fischer 344 Rats

Project description:Dietary methionine restriction (MR) has been shown to increase lifespan and decrease adiposity in rodents. This study was designed to examine the transcriptional effects of MR in metabolically relevant tissues. This experiment contains data from the inguinal white adipose tissue (IWAT). We analyzed MR-induced changes in gene expression using pooled RNA from IWAT of rats fed either a control purified amino acid diet (DL-methionine content of 0.86%) (CON) or a methionine-restricted diet (DL-methionine content of 0.172%)(MR). Rats were fed Purina rodent diet 5001 until 32 days of age and were then randomly assigned to be fed CON diet or MR diet for 20 months.

2013-07-01 | E-GEOD-28599 | biostudies-arrayexpress

Effects of 20 months Dietary Methionine Restriction on Hepatic Gene Expression in Fischer 344 Rats

2012-04-08 | GSE28482 | GEO

Effects of 20 months Dietary Methionine Restriction on Hepatic Gene Expression in Fischer 344 Rats

Project description:Dietary methionine restriction (MR) has been shown to increase lifespan and decrease adiposity in rodents. This study was designed to examine the transcriptional effects of MR in metabolically relevant tissues. This experiment contains data from the liver. We analyzed MR-induced changes in gene expression using pooled RNA from liver of rats fed either a control purified amino acid diet (DL-methionine content of 0.86%) (CON) or a methionine-restricted diet (DL-methionine content of 0.172%)(MR). Rats were fed Purina rodent diet 5001 until 32 days of age and were then randomly assigned to be fed CON diet or MR diet for 20 months.

2012-04-07 | E-GEOD-28482 | biostudies-arrayexpress

The effect of Methionine Restriction using oxidized casein as protein source on the transcriptome of mouse IWAT

Project description:Ingestion of a diet with a restricted Methionine (MR) content results in robust activation of a set of browning genes in IWAT (inguinal white adipose tissue). So far, data were obtained using a mix of elemental amino acids as the dietary protein source, which was replaced in this experiment with casein. To reduce methionine content, casein was oxidized and methionine was added back to a concentration similar to the diets using elemental amino acids as protein source. Results show that mice reduce body weight and adiposity on MR containing oxidized casein similar to MR containing elemental amino acids. Similarly, energy expenditure, as well as food and water intake were increased. The RNAseq experiment was conducted to compare the effect of MR using these two protein sources on the IWAT transcriptome.

2021-06-09 | GSE162917 | GEO

Exercise Training Remodels Inguinal White Adipose Tissue Through Adaptations in Innervation, Vascularization and the Extracellular Matrix

Project description:Inguinal white adipose tissue (iWAT) is essential for the beneficial effects of exercise training on metabolic health. The underlying mechanisms for these effects are not fully understood and here, we test the hypothesis that exercise training results in a more favorable iWAT structural phenotype. Using biochemical, imaging, and multi-omics analyses we find that 11-days of wheel running in male mice causes profound iWAT remodeling including decreased extracellular matrix (ECM) deposition, increased vascularization and innervation. We identify adipose stem cells as one of the main contributors to training-induced ECM remodeling, show that the PRDM16 transcriptional complex is necessary for iWAT remodeling and beiging, and discover neuronal growth regulator 1 (NEGR1) as a link between PRDM16 and neuritogenesis. Moreover, we find that training causes a shift from hypertrophic to insulin-sensitive adipocyte subpopulations. Exercise training leads to remarkable adaptations to iWAT structure and cell-type composition that can confer beneficial changes in tissue metabolism.

2023-10-24 | PXD040894 | Pride

NDUFS4 deficiency in female and male inguinal white fat

Project description:We compared gene expression between high fat diet (HFD)-fed Adipo-NDUFS4 knockout (KO) and WT mice in inguinal white adipose tissue (iWAT or scWAT).

2022-03-07 | GSE190645 | GEO

Repression of Cebpa-L1-AD-En2 enhancer decreases Cebpa expression in inguinal white adipose tissue and affects adipose tissue development

Project description:To investigate whether Cebpa-L1-AD-En2 produces a marked effect on adipogenesis in mouse adipose tissue, we injected the dCas9-KARB-En2 lentiviral system (iWAT_Cebpa-En2 group) or dCas9-KRAB-GFP (Control group) directly into mouse inguinal white adipose tissue (iWAT). We conducted RNA-seq analysis on the iWAT of iWAT-En2 group mice and control group mice at 13 weeks of age

2024-03-07 | GSE229849 | GEO

Single cell RNA-sequencing of inguinal adipose tissue Pdgfrβ+ cells

Project description:We previously derived a doxycycline-inducible (Tet-On) lineage-tracing model that allows for the indelible labeling of Pdgfrb-expressing perivascular cells in adipose tissue of adult mice (PdgfrbrtTA; TRE-Cre; Rosa26RmT/mG; herein, MuralChaser mice). Prior to exposing animals to doxycyline, all cells within the stromal-vascular fraction (SVF) of adult inguinal WAT (iWAT) express membrane tdTomato from the Rosa26 locus. Following 9 days of exposure to doxycycline-containing chow diet, Cre-mediated excision of the loxP-flanked tdTomato cassette occurs in Pdgfrb-expressing cells, and membrane-bound GFP (mGFP) expression is constitutively activated. We set out to test the hypothesis that Pdgfrb-expressing perivascular cells in inguinal WAT of adult mice are heterogeneous, with subpopulations harboring functionally distinct phenotypes. To this end, we performed single cell RNA-sequencing of mGFP+ cells isolated from iWAT of lean (chow fed) 8 weeks-old male MuralChaser mice following 9 days of doxycycline exposure.

2020-09-01 | GSE144090 | GEO

scRNA-seq of stromal vascular cells from 48 week (aged) mouse subcutaneous adipose tissue compared to control 10 week (young) mouse SVF

Project description:Adipose tissue mass and adiposity change throughout the lifespan. During aging, while visceral adipose tissue (VAT) tends to increase, peripheral subcutaneous adipose tissue (SAT) decreases significantly. Unlike VAT, which is linked to metabolic diseases, SAT has beneficial effects. However, the molecular details behind aging-associated loss of SAT remain unclear. Here we compare scRNA-seq of total SVF of SAT from young and aging mice to identify a novel Aging-dependent Regulatory Cell (ARC) that emerges in SAT of aged mice. Inguinal white adipose tissue (iWAT) was used as a representative SAT; iWAT pads of 2 mice from each age group were subjected to collagenase digestion and treated with a hypotonic buffer to remove red blood cells before subjection to scRNA-seq by 10X Genomics Chromium Single Cell Kit. The findings showed that ARCs express adipogenic markers but lack adipogenic capacity and inhibit differentiation of neighboring adipose precursors.

2021-03-25 | E-MTAB-10221 | biostudies-arrayexpress

The effect of Methionine Restriction using oxidized casein as protein source on the transcriptome of mouse livers

Project description:Ingestion of a diet with a restricted Methionine (MR) content results in robust activation of hepatic stress pathways regulated by PERK, ATF4, and Nfe2l2. In addition, genes regulating hepatic lipogenesis are downregulated. So far, data were obtained using a mix of elemental amino acids as the dietary protein source, which was replaced in this experiment with casein. To reduce methionine content, casein was oxidized and methionine was added back to a concentration similar to the diets using elemental amino acids as protein source. Results show that mice reduce body weight and adiposity on MR containing oxidized casein similar to MR containing elemental amino acids. Similarly, energy expenditure, as well as food and water intake were increased. The RNAseq experiment was conducted to compare the effect of MR using these two protein sources on the hepatic transcriptome.

2021-06-09 | GSE162918 | GEO

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