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Expression data from browning inguinal white adipose tissue in UCP1/ApoE-DKO mice

ABSTRACT: Differentiation of brown adipocytes is a crucial process for adaptive thermogenesis, which is stimulated by various factors. We found robust browning of inguinal white adipose tissue in UCP1/ApoE-DKO mice, but not in ApoE-KO mice, under high-fat diet condition. We used microarray to determine the genes specifically regulated in the browning white adipose tissue in UCP1/ApoE-DKO mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE95273 | GEO | 2018/10/01

REPOSITORIES: GEO

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Mus musculus

Project description:Expression data from browning inguinal white adipose tissue in UCP1/ApoE-DKO mice

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Ctnnb1/β-catenin inactivation in UCP1-positive adipocytes augments the browning of white adipose tissue

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HMGNs Regulate White Adipocyte Browning By Stabilizing Cell Identity [RNA-Seq]

Project description:We report mRNA seq during time course of white preadipocyte browning from WT and HMGN1 and HMGN2 double knockout (DKO) mice . Moreover, we support our finding that loss of HMGN promotes white adipocyte browning with RNA seq of WT and DKO MEFs transdifferentiation into brown-like adipocytes.

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HMGNs Regulate White Adipocyte Browning By Stabilizing Cell Identity [ChIP-Seq]

Project description:We report H3K27ac ChIP seq during time course of white preadipocyte browning from WT and HMGN1 and HMGN2 double knockout (DKO) mice .

2022-10-19 | GSE193333 | GEO

Spatial Recruitment of Cardiolipins in White Adipose Tissue after Cold Stimulation is Independent of UCP1

Project description:Abstract Brown and brite adipocytes are the key cells performing uncoupling protein 1 (UCP1) dependent non-shivering thermogenesis (NST) induced by cold exposure. Several lipid species are associated to NST in brown and white adipose tissue. Studies investigating the association of the lipid profile with NST rely on the analysis of whole organ homogenates or on the differentiation of pre-adipocytes in vitro. These approaches have so far not addressed the heterogeneity of white adipose tissue. Aim of this study was to characterize the lipid composition of white adipose tissue on a region-specific level in an in vivo context. We applied MALDI mass spectrometry imaging (MALDI-MSI) in combination with immunohistochemistry and high-resolution mass spectrometry on sections of inguinal white adipose tissue of 129S6/SvEvTac and C57BL6/N-UCP1 knockout and wildtype mice acclimatized to cold to identify lipids specific to areas of UCP1 expression. Based on the analysis of cold exposed 129S6/SvEvTac mice we identified cardiolipins (CL) and diacylglycerols (DG) species to be specific for areas expressing UCP1 and triacylglycerols (TG) to be the main lipid class characteristic for UCP1 negative regions within inguinal white adipose tissue. Investigation of C57BL6/N-UCP1 knockout and wildtype mice housed at either room temperature or acclimatized to cold, demonstrated that CL content in white adipose tissue is increased upon cold stimulation, independent of UCP1. We introduce a MALDI-MSI based approach to identify lipids associated to thermogenic adipocytes in adipose tissues demonstrating a clear regional cold dependent upregulation of CL independent of UCP1.

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Ctnnb1/β-catenin inactivation in UCP1-positive adipocytes augments the browning of white adipose tissue

Project description:Ctnnb1/β-catenin inactivation in UCP1-positive adipocytes augments the browning of white adipose tissue

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Project description:Single cell level analysis of transcriptional circuits regulating UCP1-indepednent theremogensis through Lgr6 in inguinal Adipose tissue. We previously identified an increase in Lgr6 gene expression in the beige adipocyte population of UCP1-KO mice and hypothesized its involvement in UCP1-independent thermogensis. Consistent with our previous data the scATAC-seq data reveals that chromatin accessibility at the Lgr6 loci is significantly higher in Ucp1- KO beige adipocytes as compared to WT and the promter is also more accessible in Ucp1- KO beige adipocytes. Other DNA-binding motifs involved in UCP-1 indepedent thermogensis were also analyzed and found to be upregulated in the KO model.

2021-05-15 | GSE174456 | GEO

snRNA-seq of Lepr-cre; Tomato inWAT at different white-browning treatments

Project description:As obesity has becoming an urged issue nowadays, delineation of the mechanisms of WAT tissue white-browning and beige adipose origin are of important topic. By the use of snRNA-seq, we can outline LepR cells play important role in the white-browning process and investigate the mechanisms participate at different white-browning treatments.

2022-11-06 | GSE216925 | GEO

RNA-sequence analysis of immortalized, differentiated preadipocytes derived from inguinal subcutaneous white adipose tissue.

Project description:In acute cold stress in mammals, JMJD1A, an H3K9 demethylase, up-regulates thermogenic gene expressions through β-adrenergic signaling in brown adipose tissue (BAT). Aside BAT-driven thermogenesis, mammals also have another mechanism to cope with long-term cold stress by inducing the browning of subcutaneous white adipose tissue (scWAT). Here, we show that this occurs through a two-step process that requires both β-adrenergic dependent phosphorylation of S265 and demethylation of H3K9me2 by JMJD1A. The histone demethylation independent acute Ucp1 induction in BAT and demethylation dependent chronic Ucp1 expression in beige-scWAT provide complementary molecular mechanisms to ensure an ordered transition between acute and chronic adaptation to cold stress. JMJD1A mediates two major signaling pathways, namlely β-adrenergic receptor and PPARγ activation, via PRDM16-PPARγ-P-JMJD1A complex for beige adipogenesis.

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