Dataset Information

Integrated proteome and phosphoproteome analysis of interscapular brown adipose and subcutaneous white adipose tissues upon high fat diet feeding in mouse

ABSTRACT: Thermogenesis is a promising approach to limit weight gain in response to excess nutrition. In contrast to cold-induced thermogenesis, the molecular and cellular mechanisms of diet-induced thermogenesis (DIT) have not been fully characterized. Here, we explored the response of brown adipose tissue (BAT) and beige adipose tissue to high fat diet (HFD) using proteome and phosphoproteome analysis. We observed that after HFD, DIT was only activated in BAT. Furthermore, fatty acid oxidation, tricarboxylic acid cycle, and oxidative phosphorylation were also activated in BAT. Nevertheless, most metabolic pathways downregulated in beige adipose tissue. Strikingly, we found that these metabolic changes accompanied with different variation of mitochondria between BAT and beige adipose tissue as well. HFD treatment impaired mitochondrial functions and mitochondrial protein synthesis in beige adipose tissue while it stimulated mitochondrial autophagy in BAT. Together, in BAT, HFD caused increased mitochondrial activity,

ORGANISM(S): Mus Musculus

SUBMITTER: Hu Zhou

PROVIDER: PXD032888 | iProX | Fri Apr 01 00:00:00 BST 2022

REPOSITORIES: iProX

ACCESS DATA

Publications

Integrated proteome and phosphoproteome analysis of interscapular brown adipose and subcutaneous white adipose tissues upon high fat diet feeding in mouse.

Wang Yuqiu Y Li Junmin J Lu Dayun D Meng Qian Q Song Nixue N Zhou Hu H Xiao Xiao X Sun Liming L Zhu Hongwen H

Journal of proteomics 20220129

Thermogenesis is a promising approach to limit weight gain in response to excess nutrition. In contrast to cold-induced thermogenesis, the molecular and cellular mechanisms of diet-induced thermogenesis (DIT) have not been fully characterized. Here, we explored the response of brown adipose tissue (BAT) and subcutaneous white adipose tissue (sWAT) to high fat diet (HFD) using proteome and phosphoproteome analysis. We observed that after HFD, Uncoupling protein 1 (UCP1) and its phosphorylation we ...[more]

PMID: 35101640

Similar Datasets

Project description:Background: Obesity is associated with infiltration of macrophages into adipose tissue. Adipose macrophages may contribute to an elevated inflammatory status by secreting a variety of pro-inflammatory mediators, including TNFalpha and IL-6. Recent data suggest that during diet-induced obesity the phenotype of adipose-resident macrophages changes from alternatively activated macrophages towards a more classical and pro-inflammatory phenotype. Here, we explore the effect of PPARγ-activation on obesity-induced inflammation in 129SV mice fed a high fat diet for 20 weeks. High fat feeding increased bodyweight gain, adipose tissue mass and liver triglycerides. Rosiglitazone treatment further increased adipose mass, reduced liver triglycerides and changed adipose tissue morphology towards smaller adipocytes. Surprisingly, rosiglitazone markedly increased the number of macrophages in adipose tissue, as shown by immunohistochemical analysis and quantification of macrophage marker genes CD68 and F4/80+. In adipose tissue, markers for classically activated macrophages including IL-18 were down regulated whereas markers characteristic for alternatively activated macrophages (Arginase 1, IL-10) were up regulated by rosiglitazone. Importantly, conditioned media from rosiglitazone-treated alternatively activated macrophages neutralized the inhibitory effect of macrophages on 3T3-L1 adipocyte differentiation, suggesting that alternatively activated macrophages may be involved in mediating the effects of rosiglitazone on adipose tissue morphology and mass. Our results suggest that short term rosiglitazone treatment increases infiltration of alternatively activated macrophages in adipose tissue. The alternatively activated macrophages might play a role in PPARγ-dependent expansion and remodeling of adipose tissue. Keywords: metabolic state analysis Pure bred wild-type (129S1/SvImJ) male mice received a low fat diet or high fat diet for 21 weeks, providing 10 or 45% energy percent in the form of triglycerides (D12450B or D12451, Research Diets, New Brunswick, USA). The lard component in these diets was replaced by palm oil. In the last week of diet intervention, half of the mice receiving the HFD were switched to HFD supplemented with Rosiglitazone (0.01 % wt/wt). Animals were sacrificed in the fed state. Epididymal adipose tissue was excised and frozen in liquid nitrogen. Pooled RNA samples from 5 mice per experimental group were used for microarray analysis. Samples were hybridized on Affymetrix GeneChip Mouse Genome 430-2.0 plus arrays. Five microgram total RNA was labelled according to the Affymetrix One-cycle Target Labeling Assay, fragmented and hybridized according to Affymetrix's protocols.

Project description:Using standardized, semipurified diets is a crucial factor for reproducibility of experimental nutritional studies. For the purpose of comparability and integration of research, two European consortia, Mitofood and BIOCLAIMS, proposed an AIN-93-based standard reference diet, the standardized BIOCLAIMS low-fat diet (LFD) as well as a high-fat diet (HFD). In order to evaluate the BIOCLAIMS LFD and HFD, we performed short-term (5 days) and long-term (12 weeks) feeding experiments using male C57BL/6 mice. The HFD has the same composition as the LFD except the fat content is increased to 40% energy in exchange for carbohydrates. Both diets were accepted by the animals and proof of principle was given that the BIOCLAIMS HFD increases body weight and body fat and affects glucose homeostasis. Short-term feeding trials (5 days) were performed in order to identify metabolic and molecular parameters which can serve as acute predictors for metabolic disorders due to high-fat diet-induced obesity. We analyzed gene expression in gonadal white adipose tissue of short- and long-term fed animals with whole genome microarrays. The BIOCLAIMS HFD strongly influenced gene expression in white adipose tissue after short- and long-term intervention. A total number of 973 and 4678 transcripts were significantly different between both diets after 5 days feeding and 12 weeks feeding, respectively. A total number of 764 transcripts encoding 549 genes were significantly differentially regulated between LF and HF animals after 12 weeks feeding as well as after 5 days feeding. Of these 549 overlapping genes, a substantial number (434 genes) were expressed at a lower level and 115 genes were expressed at a higher level in the HF mice compared to the LF mice. Without exception, all genes were regulated equally. Pathway analysis revealed a prominent role for genes involved in lipid metabolism, carbohydrate metabolism and oxidative phosphorylation. This was confirmed by quantitative real-time reverse transcription PCR. The high predictive value of gene expression changes in our short-term study compared to long-term high fat feeding is a promising step to get well-defined, early biomarkers that could shorten animal trials considerably and allow a more rapid and efficient screening of different compounds. C57BL/6J wildtype male mice, aged 12 weeks, received a low-fat diet or a high-fat diet for 5 days or 12 weeks. After sacrification, white adipose tissue depots were dissected, and immediately snap frozen in liquid nitrogen. Total RNA was isolated, quantified and qualified, and subsequently used for global gene expression profiling using Agilent 4x44K microarrays.

Dataset Information

Integrated proteome and phosphoproteome analysis of interscapular brown adipose and subcutaneous white adipose tissues upon high fat diet feeding in mouse

Publications

Integrated proteome and phosphoproteome analysis of interscapular brown adipose and subcutaneous white adipose tissues upon high fat diet feeding in mouse.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure