Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA111399 | ENA |
REPOSITORIES: ENA
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Project description:We studied the role of the cAMP responsive factor CREB in promoting insulin resistance following its activation in adipose under obese conditions; We identified genes that were upregulated in primary cultures of mouse adipocytes following exposure to forskolin; and we characterized genes that are also induced in white adipose tissue in mice maintained on a high fat diet. Experiment Overall Design: Primary cultures of mouse adipocytes,harvested from visceral adipose tissue, were exposed to forskolin (10uM) or vehicle control (DMSO) for 2 hours. White adipose tissue (epididymal fat pads) were collected from mice maintained on a 60% high fat diet for 12 weeks and from control mice on normal chow.
2009-03-07 | E-GEOD-14363 | biostudies-arrayexpress
Project description:The popularity of high fat foods in modern society has been associated with epidemic of various metabolic diseases characterized by insulin resistance, the pathology of which involves complex interactions between multiple tissues such as liver, skeletal muscle and white adipose tissue (WAT). To uncover the mechanism by which excessive fat impairs insulin sensitivity, we conducted a multi- tissue study by using TMT-based quantitative proteomics. 3-week-old ICR mice were fed with high fat diet (HFD) for 19 weeks to induce insulin resistance. Liver, skeletal muscle and epididymal fat were collected for proteomics screening. Additionally, PRM was used for validating adipose differential proteins. By comparing tissue-specific protein profiles of HFD mice, multi-tissue regulation of glucose and lipid homeostasis and corresponding underlying mechanisms was systematically investigated and characterized. NC: normal birth weight + chow diet; NH: normal birth weight + high fat diet; LC: low birth weight + chow diet; LH: low birth weight + high fat diet.
2022-01-26 | PXD021046 | Pride
Project description:We took a systematic approach to determine the transcriptional programs that are specifically regulated by C/EBP? in mature white adipocytes of mice on chow diet or high fat diet. The hypothesis tested in the present study was that C/EBP?, as a lipogenic transcription factor, has unique direct targets compared to PPAR?. Our inducible adipocyte specific knockout system allows us to test the direct targets of C/EBP? and PPAR? in adipocytes by short-term C/EBP? or PPAR? elimination in mature adipocytes in vivo. Results indicate that although it has been shown that C/EBP? and PPAR? cross-regulate each other, they have distinct direct responsive targets. Moreover, there are very few C/EBP? specific targets in mice on a chow diet, most of the C/EBP? targets in mature adipocytes are genes modulated by HFD feeding. Total RNA obtained from subcutaneous adipose tissue of Adn-C/EBP?-/- mice on doxycycline chow diet for 3 days, doxycycline high fat diet for 3 days or 1 month and Adn-PPAR?-/- mice on doxycycline chow diet for 3 days, compared to control littermates.
2014-11-04 | E-GEOD-62937 | biostudies-arrayexpress
Project description:Transcriptional profiling of WAT comparing wild-type control with Ahnak Knockout mice fed regular chow and high fat diet We obtained white adipose tissue from mice fed regular chow and high fat diet for Affymetrix microarrays
2012-04-12 | E-GEOD-37218 | biostudies-arrayexpress
Project description:The aim of this study was to characterize the obesity-related gene expression profiles between bone marrow adipocytes and peripheral white adipocytes from obese mice fed with high fat diet and leptin deficient mice Alterations of gene expression with high fat diet and in mice lacking leptin were analyzed in bone marrow and peripheral white adipocytes isolated from C57BL/6J male mice using Affymetrix Mouse Gene 1.0 ST arrays. Bone marrow adipocytes and peripheral white adipocytes (n=6-10 animals per group) were isolated from male C57BL/6J mice (6-months, 14-months ) fed with either standard chow or a high fat diet containg 60% calories from fat. Samples were grouped into diet (standard chow vs. high fat diet) and age (6-month (6M), 14-month (14M) and 18-month (18M)).
2011-11-29 | E-GEOD-27017 | biostudies-arrayexpress
Project description:We previously demonstrated that antisense oligonucleotide (ASO)-mediated knockdown of Mboat7, the gene encoding Membrane Bound O-Acyltransferase 7, in the liver and adipose tissue of mice promoted high fat diet-induced hepatic steatosis, hyperinsulinemia, and systemic insulin resistance. Thereafter, other groups showed that hepatocyte-specific genetic deletion of Mboat7 promoted striking fatty liver and NAFLD progression in mice but does not alter insulin sensitivity, suggesting the potential for cell autonomous roles. Here, we show that MBOAT7 function in adipocytes contributes to diet-induced metabolic disturbances including hyperinsulinemia and systemic insulin resistance. We generated floxed Mboat7 mice and created hepatocyte- and adipocyte-specific knockout mice using Cre-recombinase mice under the control of the albumin and adiponectin promoter, respectively. After chow and high fat diet feeding (60% kCal fat), mice were subjected to metabolic phenotyping and tissues to molecular workup and analysis. Here, we show that MBOAT7 function in adipocytes contributes to diet-induced metabolic disturbances including hyperinsulinemia and systemic insulin resistance. The expression of Mboat7 in white adipose tissue closely correlates with diet-induced obesity across a panel of ~100 inbred strains of mice fed a high fat/high sucrose diet. Moreover, we found that adipocyte-specific genetic deletion of Mboat7 is sufficient to promote hyperinsulinemia, systemic insulin resistance, and mild fatty liver. Unlike in the liver, where Mboat7 plays a relatively minor role in maintaining arachidonic acid (AA)-containing PI pools, Mboat7 is the major source of AA-containing PI pools in adipose tissue. Our data demonstrate that MBOAT7 is a critical regulator of adipose tissue PI homeostasis, and adipocyte MBOAT7-driven PI biosynthesis is closely linked to hyperinsulinemia and insulin resistance in mice.
2023-05-10 | PXD039894 | Pride
Project description:Transcript data from subcutaneous white adipose tissue (scWAT) from fasted-state male BXD strains on chow or high fat diet We used microarrays to compare the subcutaneous white adipose tissue (scWAT) expression differences across the BXD strain family and across two diverse diets
2019-03-08 | GSE79016 | GEO
Project description:We studied the role of the cAMP responsive factor CREB in promoting insulin resistance following its activation in adipose under obese conditions We identified genes that were upregulated in primary cultures of mouse adipocytes following exposure to forskolin; and we characterized genes that are also induced in white adipose tissue in mice maintained on a high fat diet. Keywords: signaling study
2009-03-03 | GSE14363 | GEO
Project description:Adipocytes are key players in maintaining energy homeostasis and are classified into two different categories: white and brown adipocyte. While white adipocytes store energy as triacylglycerols in lipid droplets, brown adipocytes combust excess chemical energy and release in the form of heat through uncoupled respiration. This characteristic phenomenon of brown fat attracts researchers and pharmacological industries to view brown fat as one of the potential therapeutic targets for obesity and associated metabolic disease. In the current study, we investigated the effect of a small molecule, sesaminol (SML) on brown fat activity and found that SML induces thermogenic program in primary white adipocytes as well as chow diet fed mice. In particular, SML treatment to mice elevated mitochondrial complex proteins and the rate oxygen consumption in brown and white fat. Administration of SML to high fat diet (HFD) challenged mice decreased weight gain, adiposity and cholesterol levels along with an increase of brown fat gene program in brown and white fat. Mechanistically, SML repressed the myogenic gene program in C2C12 myoblasts and increased all mitochondrial marker genes as appeared in brown adipose cells. Together, our results demonstrate that SML stimulates brown adipose function and protects mice against diet induced weight gain.
2020-03-27 | GSE147599 | GEO
Project description:Insufficient mitochondrial quantity in brown adipose tissue (BAT) causes defective thermogenesis and positive energy balance, which is coupled with the development of obesity. Whether disturbance of mitochondrial quality affects BAT function remains unknown. Here, we describe that the brown adipocyte-specific Leucine-rich PPR motif-containing protein knockout mice (LrpprcBKO) exhibited mitochondrial electron transport chain (ETC) proteome imbalance and a complete loss of the -adrenergic-stimulated thermogenesis at room temperature (RT), due to specific reduction of mtDNA-encoded genes. However, the LrpprcBKO mice were lean at normal chow and were protected against high-fat-diet-induced metabolic abnormalities, such as obesity, insulin resistance, adipose inflammation, hepatic steatosis, and hypertriglyceridemia. The beige adipocytes in inguinal white adipose tissue were expanded in LrpprcBKO mice at RT, but not at thermoneutrality. However, BAT thermogenic defects and metabolic benefits were present in LrpprcBKO mice regardless of ambient temperatures. Collectively, our results reveal that a thermogenesis-incapable BAT with mitochondrial ETC proteome imbalance can improve systemic metabolism, suggesting BAT’s contributions to thermoregulation and systemic metabolism can be uncoupled.
2021-10-07 | PXD008798 | Pride