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Asc-1 regulates white versus beige adipocyte fate in a subcutaneous stromal cell population

ABSTRACT: Asc-1 regulates white versus beige adipocyte fate in a subcutaneous stromal cell population

PROVIDER: PRJNA690085 | ENA |

REPOSITORIES: ENA

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	SRR13370198.fastq.gz	Fastqsanger.gz

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Asc-1 regulates white versus beige adipocyte fate in a subcutaneous stromal cell population

Project description:Here we provide scRNAseq data from the stromal vascular fraction of adult (8 weeks) and adolescent (2 weeks) murine inguinal subcutaneous white adipose tissue. This allows studying cellular composition and cellular heterogeneity within subcutaneous fat.

2021-01-07 | GSE164350 | GEO

A non-cell autonomous mechanism of beige adipocyte renaissance in subcutaneous adipose tissue

Project description:Two types of UCP1 positive cells-brown and beige adipocytes exist in mammals. Beige adipocytes are very plastic, and can be dynamically regulated by environment.Beige adipocytes formed postnatally in subcutaneous inguinal white adipose tissue (iWAT) lost thermogenic gene expression and multilocular morphology at adult stage, but cold could restore their “beigeing” characteristics, a phenomenon termed as beige adipocyte renaissance. Our results showed that beige cell maintenance and renaissance in adult mice were regulated by cAMP and HDAC4 signaling in white adipocytes non-cell autonomously. Genetic modulations of various components of this cAMP-HDAC4 cascade (e.g. LKB1) led to persistent browning and reduced adiposity independent of thermogenesis. To further study the mechanisms of beige adipocytes maintenance, we performed RNA-seq with samples from inguinal white adipose tissues of WT, AdipoqCre LKB1 F/F, and AdipoqCre LKB1 F/F; HDAC4 F/F mice.Our studies will move the beige adipocyte field forward and attract clinical applications to target beige adipocyte renaissance.

2018-02-14 | GSE85335 | GEO

Asc-1 regulates white versus beige adipocyte fate in a subcutaneous stromal cell population.

Project description:Adipose tissue expansion, as seen in obesity, is often metabolically detrimental causing insulin resistance and the metabolic syndrome. However, white adipose tissue expansion at early ages is essential to establish a functional metabolism. To understand the differences between adolescent and adult adipose tissue expansion, we studied the cellular composition of the stromal vascular fraction of subcutaneous adipose tissue of two and eight weeks old mice using single cell RNA sequencing. We identified a subset of adolescent preadipocytes expressing the mature white adipocyte marker Asc-1 that showed a low ability to differentiate into beige adipocytes compared to Asc-1 negative cells in vitro. Loss of Asc-1 in subcutaneous preadipocytes resulted in spontaneous differentiation of beige adipocytes in vitro and in vivo. Mechanistically, this was mediated by a function of the amino acid transporter ASC-1 specifically in proliferating preadipocytes involving the intracellular accumulation of the ASC-1 cargo D-serine.

| S-EPMC7952576 | biostudies-literature

M2 macrophages independently promote beige adipogenesis via blocking adipocyte Ets1

Project description:Beige adipocytes accumulates mitochondria and alleviates metabolic disorder via activating energy expenditure. Whether the opposing process of mitochondrial biogenesis and clearance are integrated regulated in beige adipocytes is beyond known. Here we show that DNA binding protein Ets1 suppresses beige adipocyte formation via bidirectional regulation of mitochondrial biogenesis and clearance. The expression level of Ets1 was down-regulated in browning adipocytes, and up-regulated in the subcutaneous fat of obese mice. Adipocyte Ets1 heterozygous knock-in mice showed suppressed beige adipocytes formation under cold stress, while the homozygous knock-in mice are cold intolerance. On the other hand, knocking out Ets1 in adipocytes enhanced energy expenditure and protect the mice from high fat diet induced metabolic disorders. Mechanical assay suggests Ets1 binds to the promoter region of mitochondria complex coding genes and autophagy related genes, transcriptionally suppresses mitochondrial biogenesis and activates its clearance. Our results indicate that Ets1 integrally regulates the balance of mitochondria generation and degradation, hence acts as a pivotal governor of mitochondria content and negatively regulates beige adipocyte formation.

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Genome-wide binding sites of Foxp4 in beige adipocyte

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2022-04-06 | GSE199559 | GEO

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Project description:FACS-purified adipocyte progenitors from murine subcutaneous adipose tissue were cultured under conditions promoting general adipogenic differentiation or beige/brite adipocyte differentiation (treatment with cPGI2) in the presence of absence of Jak inhibitor I (JakiI), which targets all Jak family members. The cells were harvested 24 hours after induction of differentiation.

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Project description:FACS-purified adipocyte progenitors from murine subcutaneous adipose tissue were cultured under conditions promoting general adipogenic differentiation or beige/brite adipocyte differentiation (treatment with cPGI2). Time course expression profiling was performed during differentiation. In addition, some cultures of differentiated adipocytes were stimulated with norepinephrine for 3 hours. In parallel, differentiation and norepinephrine stimulation of progenitors from interscapular brown fat was performed and profiled.

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Single cell functional genomics reveals plasticity of subcutaneous white adipose tissue (WAT) during early postnatal development

Project description:We performed a large-scale single cell transcriptomic (scRNA-seq) and epigenomic (snATAC-seq) characterization of cellular subtypes (adipose stromal cells (ASC) and adipocyte nuclei) during inguinal WAT (subcutaneous; iWAT) development in mice, capturing the early postnatal period (postnatal days (PND) 06 and 18) through adulthood (PND56).

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