Regulation of brown fat homeostasis by H19 lincRNA [II]
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA477821 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR7421470.fastq.gz | Fastqsanger.gz | |||
| SRR7421480.fastq.gz | Fastqsanger.gz | |||
| SRR7421471.fastq.gz | Fastqsanger.gz | |||
| SRR7421481.fastq.gz | Fastqsanger.gz | |||
| SRR7421472.fastq.gz | Fastqsanger.gz |
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Similar Datasets
Project description:Regulation of brown fat homeostasis by H19 lincRNA
| PRJNA477815 | ENA
Project description:Regulation of brown fat homeostasis by H19 lincRNA [I]
| PRJNA477820 | ENA
Project description:Increases in organismal energy expenditure, as during cold exposure or exercise training, can improve metabolic health. This process is dependent also on brown adipose tissue (BAT) thermogenesis in mice and humans. Understanding and harnessing the molecular circuits activating BAT function is thus of great interest to devise novel approaches to counteract obesity and type 2 diabetes (T2D). In contrast to protein-coding genes, the role of long noncoding RNAs (lncRNAs) during BAT differentiation and function remains poorly understood. To address this, we performed RNA-Seq and identified the maternal allele-specific (imprinted) lncRNA H19 increased upon cold-mediated BAT activation and decreased upon chronic diet-induced obesity (DIO) BAT dysfunction. An inverse correlation of H19 expression with body-mass indices (BMI) was observed in a cohort of >160 lean and obese humans. H19 silencing impaired adipogenesis and oxidative metabolism in brown but not white adipocytes, while H19 gain-of-function increased nutrient oxidation and mitochondrial respiration, thus supporting a BAT-regulatory role for H19. In vivo H19 overexpression protected against DIO, improved insulin sensitivity and rescued DIO-mediated defects in energy expenditure in conjunction with improved mitochondrial biogenesis. In contrast, BAT-selective H19 loss decreased energy dissipation and sensitized towards high fat diet-induced body weight gains. When investigating other parent-of-origin specific, monoallelically expressed genes, we strikingly observed that paternally expressed genes (PEGs) were largely absent from BAT and coordinately downregulated during brown adipogenesis, whilst the same gene set was robustly expressed in white fat stores, a phenomenon not observed for maternally expressed genes (MEGs). Using H19 loss- and gain-of-function in primary adipocytes, we demonstrate that H19 acts as ‘PEG gatekeeper’ in brown, not white adipocytes, potentially due to recruitment of PEG-inactivating H19-MBD1 complexes in mature brown adipocytes. The exclusive PEG expression in white adipose tissuer could underly the observed susceptibility of mice exhibiting high PEG abundances towards DIO-evoked weight gain. Collectively, we here define novel roles for the imprinted lncRNA H19 in brown adipocyte differentiation and function in vitro, control of energy expenditure in vivo and repression of paternal allele-specific gene expression in BAT. This has far-reaching implications for our understanding of how monoallelical gene expression affects metabolic eustasis in both rodent models and, potentially, human patients.
2018-06-26 | GSE116226 | GEO
Project description:Increases in organismal energy expenditure, as during cold exposure or exercise training, can improve metabolic health. This process is dependent also on brown adipose tissue (BAT) thermogenesis in mice and humans. Understanding and harnessing the molecular circuits activating BAT function is thus of great interest to devise novel approaches to counteract obesity and type 2 diabetes (T2D). In contrast to protein-coding genes, the role of long noncoding RNAs (lncRNAs) during BAT differentiation and function remains poorly understood. To address this, we performed RNA-Seq and identified the maternal allele-specific (imprinted) lncRNA H19 increased upon cold-mediated BAT activation and decreased upon chronic diet-induced obesity (DIO) BAT dysfunction. An inverse correlation of H19 expression with body-mass indices (BMI) was observed in a cohort of >160 lean and obese humans. H19 silencing impaired adipogenesis and oxidative metabolism in brown but not white adipocytes, while H19 gain-of-function increased nutrient oxidation and mitochondrial respiration, thus supporting a BAT-regulatory role for H19. In vivo H19 overexpression protected against DIO, improved insulin sensitivity and rescued DIO-mediated defects in energy expenditure in conjunction with improved mitochondrial biogenesis. In contrast, BAT-selective H19 loss decreased energy dissipation and sensitized towards high fat diet-induced body weight gains. When investigating other parent-of-origin specific, monoallelically expressed genes, we strikingly observed that paternally expressed genes (PEGs) were largely absent from BAT and coordinately downregulated during brown adipogenesis, whilst the same gene set was robustly expressed in white fat stores, a phenomenon not observed for maternally expressed genes (MEGs). Using H19 loss- and gain-of-function in primary adipocytes, we demonstrate that H19 acts as ‘PEG gatekeeper’ in brown, not white adipocytes, potentially due to recruitment of PEG-inactivating H19-MBD1 complexes in mature brown adipocytes. The exclusive PEG expression in white adipose tissuer could underly the observed susceptibility of mice exhibiting high PEG abundances towards DIO-evoked weight gain. Collectively, we here define novel roles for the imprinted lncRNA H19 in brown adipocyte differentiation and function in vitro, control of energy expenditure in vivo and repression of paternal allele-specific gene expression in BAT. This has far-reaching implications for our understanding of how monoallelical gene expression affects metabolic eustasis in both rodent models and, potentially, human patients.
2018-06-26 | GSE116225 | GEO
Project description:This SuperSeries is composed of the SubSeries listed below.
2018-06-26 | GSE116227 | GEO
Project description:We report the RNA expression of the mature brown fat from 6 week old wild type (WT) and PHOSPHO1 knockout (KO) mice. Mature brown fat was isolated from brown adipose tissue after collagenase digestion. Increased expression of mitochondrial genes is found in KO brown fat.
2020-07-08 | GSE129020 | GEO
Project description:Increasing brown adipose tissue (BAT) thermogenesis in mice and humans improves metabolic health and understanding BAT function is of interest for novel approaches to counteract obesity. The role of long noncoding RNAs (lncRNAs) in these processes remains elusive. We observed maternally expressed, imprinted lncRNA H19 increased upon cold-activation and decreased in obesity in BAT. Inverse correlations of H19 with BMI were also observed in humans. H19 overexpression promoted, while silencing of H19 impaired adipogenesis, oxidative metabolism and mitochondrial respiration in brown but not white adipocytes. In vivo, H19 overexpression protected against DIO, improved insulin sensitivity and mitochondrial biogenesis, whereas fat H19 loss sensitized towards HFD weight gains. Strikingly, paternally expressed genes (PEG) were largely absent from BAT and we demonstrated that H19 recruits PEG-inactivating H19-MBD1 complexes and acts as BAT-selective PEG gatekeeper. This has implications for our understanding how monoallelic gene expression affects metabolism in rodents and, potentially, humans.
| S-EPMC6127097 | biostudies-literature
Project description:We performed ChIP-seq to chart genome-wide maps of H3K27me3 in brown preadipocytes and mature brown adipocytes. We observed a subset of brown fat-specific genes, but not common fat genes or white fat-specific genes, possess the H3K27me3 mark in preadipocytes, and this mark is erased in mature adipocytes.
2015-12-31 | GSE55469 | GEO
Project description:Here we show that synthesis of the mitochondrial phospholipid cardiolipin is an indispensable driver of thermogenic fat function. Cardiolipin biosynthesis is robustly induced in brown and beige adipose upon cold exposure. Mimicking this response by overexpressing cardiolipin synthase (Crls1) enhances energy consumption in mouse and human adipocytes. Crls1 deficiency diminishes mitochondrial uncoupling in brown and beige adipocytes and elicits a nuclear transcriptional response through ER stress-mediated retrograde communication. Cardiolipin depletion in brown and beige fat abolishes adipose thermogenesis and glucose uptake and renders animals strikingly insulin resistant. We further identify a rare human CRLS1 variant associated with insulin resistance and show that adipose CRLS1 levels positively correlate with insulin sensitivity. Thus, adipose cardiolipin is a powerful regulator of organismal energy homeostasis through thermogenic fat bioenergetics.
2018-07-19 | GSE110297 | GEO
Project description:We performed ChIP-seq to chart genome-wide maps of H3K27me3 in brown preadipocytes and mature brown adipocytes. We observed a subset of brown fat-specific genes, but not common fat genes or white fat-specific genes, possess the H3K27me3 mark in preadipocytes, and this mark is erased in mature adipocytes. H3K27me3 ChIP-seq in brown preadipocytes and mature adipocytes.
2015-12-31 | E-GEOD-55469 | biostudies-arrayexpress