Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

18 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Remodeling of Brown and White Adipose Tissue by NT-PGC-1α-Mediated Gene Regulation

ABSTRACT: The β-adrenergic receptor signaling pathway is a major component of adaptive thermogenesis in brown and white adipose tissue during cold acclimation. The β-AR activation highly induces transcriptional coactivator PGC-1α and its splice variant N-terminal (NT)-PGC-1α, promoting the transcription program of mitochondrial biogenesis and thermogenesis. In the present study, we evaluated the role of NT-PGC-1α in brown adipocyte energy metabolism by genome-wide profiling of NT-PGC-1α-responsive genes. Canonical pathway analysis revealed that a number of genes upregulated by NT-PGC-1α are highly enriched in mitochondrial pathways including fatty acid transport and β-oxidation, TCA cycle and electron transport system, thus reinforcing the crucial role of NT-PGC-1α in the enhancement of mitochondrial function. Moreover, gene expression profiling of NT-PGC-1α revealed activation of distinct metabolic pathways such as glucose, lipid and nucleotide metabolism and of signaling pathways such as RAR and PPAR-γ/RXRα activation in brown adipocytes. Together, our data strengthen our previous findings that NT-PGC-1α is a key regulator of mitochondrial oxidative metabolism and thermogenesis in brown adipocytes and further suggest that NT-PGC-1α influences a broader spectrum of thermogenic processes to meet cellular needs for adaptive thermogenesis. Two samples from two groups: NT-PGC-1α overexpression and empty vector. There are technical replicates (A and B) for each group. Two RNA samples were pooled for each group.

ORGANISM(S): Mus musculus

SUBMITTER: Ji Suk Chang

PROVIDER: E-GEOD-71774 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Crosslinking-Mass Spectrometry data for structural analysis of Doublecortin-Microtubule interaction

Project description:Doublecortin (DCX) is a microtubule (MT) associated protein that regulates MT structure and function during neuronal development and mutations in DCX lead to a spectrum of neurological disorders. The structural properties of MT-bound DCX remain poorly resolved. Here, we describe the molecular architecture of the DCX-MT complex through an integrative modeling approach that combines data from X-ray crystallography, cryo-EM and a high-fidelity chemical crosslinking method. We demonstrate that DCX interacts with MTs through its N-terminal domain and induces a lattice-dependent self-association involving both the C-terminal structured domain and the C-tails, in a conformation that favors an open, domain-swapped state. The networked state is shown to accommodate multiple different attachment points on the MT lattice, all of which orient the C-tails away from the lattice. As numerous disease mutations cluster in the C-terminus and regulatory phosphorylations cluster in the C-tail, our study shows that lattice-driven self-assembly is an important property of DCX.

2022-05-04 | PXD033167 | Pride

A map of the PGC-1α- and NT-PGC-1α-regulated transcriptional network in brown adipose tissue [SAGE]

Project description:Transcriptional coactivator PGC-1α and its splice variant NT-PGC-1α play crucial roles in regulating cold-induced thermogenesis in brown adipose tissue (BAT). PGC-1α and NT-PGC-1α are highly induced by cold in BAT and subsequently bind to and coactivate many different transcription factors to regulate expression of genes involved in mitochondrial biogenesis, fatty acid oxidation, respiration and thermogenesis. To identify the complete repertoire of PGC-1α and NT-PGC-1α target genes in BAT, we analyzed genome-wide DNA-binding and gene expression profiles. We find that PGC-1α-/NT-PGC-1α binding broadly associates with cold-mediated transcriptional activation. In addition to their known target genes in mitochondrial biogenesis, fatty acid oxidation, respiration and thermogenesis, PGC-1α and NT-PGC-1α target to a broad spectrum of genes involved in diverse biological pathways including ubiquitin-dependent protein catabolism, ribonucleoprotein complex biosynthesis, phospholipid biosynthesis, angiogenesis, glycogen metabolism, phosphorylation, and autophagy. Our findings expand the number of genes and biological pathways that may be regulated by PGC-1α and NT-PGC-1α and provide further insight into the transcriptional regulatory network in which PGC-1α and NT-PGC-1α coordinate a comprehensive transcriptional response in BAT in response to cold.

2018-05-22 | GSE110055 | GEO

A map of the PGC-1α- and NT-PGC-1α-regulated transcriptional network in brown adipose tissue [ChIP-Seq]

2018-05-22 | GSE110053 | GEO

Remodeling of Brown and White Adipose Tissue by NT-PGC-1α-Mediated Gene Regulation

Project description:The β-adrenergic receptor signaling pathway is a major component of adaptive thermogenesis in brown and white adipose tissue during cold acclimation. The β-AR activation highly induces transcriptional coactivator PGC-1α and its splice variant N-terminal (NT)-PGC-1α, promoting the transcription program of mitochondrial biogenesis and thermogenesis. In the present study, we evaluated the role of NT-PGC-1α in brown adipocyte energy metabolism by genome-wide profiling of NT-PGC-1α-responsive genes. Canonical pathway analysis revealed that a number of genes upregulated by NT-PGC-1α are highly enriched in mitochondrial pathways including fatty acid transport and β-oxidation, TCA cycle and electron transport system, thus reinforcing the crucial role of NT-PGC-1α in the enhancement of mitochondrial function. Moreover, gene expression profiling of NT-PGC-1α revealed activation of distinct metabolic pathways such as glucose, lipid and nucleotide metabolism and of signaling pathways such as RAR and PPAR-γ/RXRα activation in brown adipocytes. Together, our data strengthen our previous findings that NT-PGC-1α is a key regulator of mitochondrial oxidative metabolism and thermogenesis in brown adipocytes and further suggest that NT-PGC-1α influences a broader spectrum of thermogenic processes to meet cellular needs for adaptive thermogenesis.

2015-08-07 | GSE71774 | GEO

Evaluation of a New High-Dimensional miRNA Profiling Platform

Project description:We evaluated a new miRNA profiling platform that utilizes Illuminaâs existing robust DASL chemistry as the basis for the assay. Using total RNA from five colon cancer patients and four cell lines, we evaluated the reproducibility of miRNA expression levels across replicates and with varying amounts of input RNA. The beta test version was comprised of 735 miRNA targets of Illuminaâs miRNA profiling application. The study used four SAMs to assess variability due to separate total RNA extractions, technical replicates of each extraction and varying total RNA input. Total RNA extracted from five patient samples (IDs 45, 165, 565, 919, 133) and RNA from four cell lines (HeLa, PC3, 293 and MCF-7) supplied by Illumina, was evaluated on each of 4 SAMs. SAM 1 was hybridized in week one, SAMs 2 and 3 were hybridized in week two and SAM 4 (with cell line RNA only) was hybridized in week three of the study. Sample allocation on SAM 1 was designed to assess reproducibility between two separate total RNA extractions, between duplicate samples (technical replicates) and between two input RNA amounts. Sample allocation on SAM 2 was designed to assess technical reproducibility and the effect of six input levels of total RNA. Sample allocation on SAM 3 was designed to assess technical replication. The four cell lines, but none of the 5 patient RNA, were run on a fourth SAM . Reproducibility across all four SAMs was also assessed.

2010-06-24 | E-GEOD-17346 | biostudies-arrayexpress

A map of the PGC-1α- and NT-PGC-1α-regulated transcriptional network in brown adipose tissue

Project description:A map of the PGC-1α- and NT-PGC-1α-regulated transcriptional network in brown adipose tissue

| PRJNA432708 | ENA

A map of the PGC-1α- and NT-PGC-1α-regulated transcriptional network in brown adipose tissue [SAGE]

Project description:A map of the PGC-1α- and NT-PGC-1α-regulated transcriptional network in brown adipose tissue [SAGE]

| PRJNA432781 | ENA

Expression data from targeting of NOS2 in glioma stem cells

Project description:Analysis of the effects of targeting NOS2 at the gene expression level. Our studies demonstrated a role for NOS2 in glioma biology through the maintenance of the glioma stem cell phenotype. Microarray results provide novel targets of NOS2 and suggest mechanisms through which NOS2 contributes to glioma stem cell biology. Glioma stem cells isolated from two different human glioma xenografts were infected with a non-targeting control shRNA or two different shRNAs directed against NOS2 (each treatment in each tumor performed in technical duplicates).

2011-07-08 | E-GEOD-29750 | biostudies-arrayexpress

A map of the PGC-1α- and NT-PGC-1α-regulated transcriptional network in brown adipose tissue [ChIP-Seq]

Project description:A map of the PGC-1α- and NT-PGC-1α-regulated transcriptional network in brown adipose tissue [ChIP-Seq]

| PRJNA432780 | ENA

The master energy homeostasis regulator PGC-1α couples transcriptional co-activation and mRNA nuclear export

Project description:PGC-1α plays a central role in maintaining the mitochondrial and energy metabolism homeostasis, linking external stimuli to the transcriptional co-activation of genes involved in adaptive and age-related pathways. The carboxyl-terminus encodes a serine/arginine-rich (RS) region and a putative RNA recognition motif, however potential RNA-processing role(s) have remained elusive for the past 20 years. Here, we show that the RS domain of human PGC-1α directly interacts with RNA and the nuclear RNA export factor NXF1. Inducible depletion of endogenous PGC-1α and expression of RNAi-resistant RS-deleted PGC-1α further demonstrate that the RNA-binding activity is required for nuclear export of co-activated transcripts and mitochondrial homeostasis. Moreover, a quantitative proteomics approach confirmed PGC-1α-dependent RNA transport and mitochondrial-related functions, identifying also novel mRNA nuclear export targets in age-related telomere maintenance. Discovering a novel function for a major cellular homeostasis regulator provides new directions to further elucidate the roles of PGC-1α in gene expression, metabolic disorders, ageing and neurodegenerative diseases.

2023-09-06 | PXD031189 | Pride

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data