Waves of sumoylation support transcription dynamics during adipocyte differentiation
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ABSTRACT:
PROVIDER: PRJNA703951 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13762800.fastq.gz | Fastqsanger.gz | |||
| SRR13762801.fastq.gz | Fastqsanger.gz | |||
| SRR13762802.fastq.gz | Fastqsanger.gz | |||
| SRR13762803.fastq.gz | Fastqsanger.gz | |||
| SRR13762804.fastq.gz | Fastqsanger.gz |
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Project description:Waves of sumoylation support transcription dynamics during adipocyte differentiation [ChIP-seq]
| PRJNA703952 | ENA
Project description:Tight control of gene expression networks involved in adipose tissue formation and plasticity is required to adapt to energy needs and environmental cues. However, little is known about the mechanisms that orchestrate the dramatic transcriptional changes leading to adipocyte differentiation. We investigated the regulation of nascent transcription by SUMO during adipocyte differentiation using SLAMseq and ChIPseq. We discovered that SUMO has a dual function in differentiation; it supports the initial downregulation of pre-adipocyte-specific genes, while it promotes the establishment of the mature adipocyte transcriptional program. By characterizing SUMOylome dynamics in differentiating adipocytes by mass spectrometry, we found that SUMOylation of specific transcription factors like PPARG/RXR and chromatin modifiers promotes the transcription of adipogenic genes. Our data demonstrate that the sumoylation pathway helps coordinates the rewiring of transcriptional networks required for formation of functional adipocytes.
2022-02-18 | PXD024144 | Pride
Project description:Tight control of gene expression networks involved in adipose tissue formation and plasticity is required to adapt to energy needs and environmental cues. However, little is known about the mechanisms that orchestrate the dramatic transcriptional changes leading to adipocyte differentiation. We investigated the regulation of nascent transcription by SUMO during adipocyte differentiation using SLAMseq and ChIPseq. We discovered that SUMO has a dual function in differentiation; it supports the initial downregulation of pre-adipocyte-specific genes, while it promotes the establishment of the mature adipocyte transcriptional program. By characterizing sumoylome dynamics in differentiating adipocytes by mass spectrometry we found that SUMOylation of specific transcription factors like PPAR/RXR and chromatin modifiers promotes the transcription of adipogenic genes. Our data demonstrate that the sumoylation pathway helps coordinates the rewiring of transcriptional networks required for formation of functional adipocytes.
2022-01-06 | GSE167220 | GEO
Project description:Tight control of gene expression networks required for adipose tissue formation and plasticity is essential for adaptation to energy needs and environmental cues. However, the mechanisms that orchestrate the global and dramatic transcriptional changes leading to adipocyte differentiation remain to be fully unraveled. We investigated the regulation of nascent transcription by the sumoylation pathway during adipocyte differentiation using SLAMseq and ChIPseq. We discovered that the sumoylation pathway has a dual function in differentiation; it supports the initial downregulation of pre-adipocyte-specific genes, while it promotes the establishment of the mature adipocyte transcriptional program. By characterizing endogenous sumoylome dynamics in differentiating adipocytes by mass spectrometry, we found that sumoylation of specific transcription factors like PPARγ/RXR and their co-factors are associated with the transcription of adipogenic genes. Finally, using RXR as a model, we found that sumoylation may regulate adipogenic transcription by supporting the chromatin occurrence of transcription factors. Our data demonstrate that the sumoylation pathway supports the rewiring of transcriptional networks required for formation of functional adipocytes. This study also provides the scientists in the field of cellular differentiation and development with an in-depth resource of the dynamics of the SUMO-chromatin landscape, SUMO-regulated transcription and endogenous sumoylation sites during adipocyte differentiation.
| S-EPMC8860575 | biostudies-literature
Project description:This SuperSeries is composed of the SubSeries listed below.
2022-01-06 | GSE167222 | GEO
Project description:Gingolic acid, a sumoylation inhibitor, promotes pre-adipogenesis but suppresses adipocyte maturation
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Project description:Identifying SUMOylation target sites in plants poses a significant challenge due to their relatively low abundance and high dynamics. Through this lysine-null SUMO1 method and the optimized two-step purification procedure, we successfully identified over 2,000 SUMOylation sites from 1,300 putative SUMO acceptors, significantly deepening the current SUMOylome in plants. Identification of thousands of SUMOylation sites offers a unique opportunity to comprehend the biological function and site specificity of SUMOylation at the proteome level.
2024-09-12 | PXD047170 | JPOST Repository
Project description:Identifying SUMOylation target sites in plants poses a significant challenge due to their relatively low abundance and high dynamics. Through this lysine-null SUMO1 method and the optimized two-step purification procedure, we successfully identified over 2,000 SUMOylation sites from 1,300 putative SUMO acceptors, significantly deepening the current SUMOylome in plants. Identification of thousands of SUMOylation sites offers a unique opportunity to comprehend the biological function and site specificity of SUMOylation at the proteome level.
2024-09-12 | PXD047242 | JPOST Repository
Project description:To gain insight into the impact of THO complex sumoylation on gene expression in yeast S. cerevisiae, total RNAs were extracted from wt and hpr1-KR cells and transcriptome profiles were analyzed by Agilent microarrays. The hpr1 K-R mutant is a version of the hpr1 THO subunit in which lysines 60-65 were simultaneously mutated, which abrogated the sumoylation of the protein.
2014-01-25 | E-MTAB-2138 | biostudies-arrayexpress
Project description:Gastric cancer (GC) remains a significant health challenge due to its high mortality rate and the limited efficacy of current targeted therapies. A critical barrier in developing more effective treatments is the lack of understanding of specific mechanisms driving GC progression. This study investigates the role of Transient Receptor Potential Vanilloid 1 (TRPV1), a non-selective cation channel known for its high Ca2+ permeability and tumor-suppressive properties in gastrointestinal cancers. Specifically, we explore the impact of SUMOylation—a dynamic and reversible post-translational modification—on TRPV1's function in GC. We demonstrate that SUMOylation of TRPV1 inhibits cell proliferation and migration in MGC-803 and AGS gastric cancer cells. By mutating amino acids near TRPV1's existing SUMO motif (slKpE), we created a bidirectional SUMO motif (EψKψE) that enhances TRPV1 SUMOylation, resulting in further suppression of GC cell proliferation and migration. In vivo studies support these findings, showing that TRPV1 SUMOylation prevents spontaneous tumorigenesis in a mouse gastric cancer model. Further investigation reveals that TRPV1 SUMOylation increases the protein's membrane expression by inhibiting its interaction with the adaptor-related protein complex 2 mu 1 subunit (AP2M1). This elevated membrane expression leads to increased intracellular Ca2+ influx, activating the AMP-activated protein kinase (AMPK) pathway, which in turn inhibits the proliferation and migration of GC cells. In conclusion, our study elucidates a novel mechanism wherein TRPV1 SUMOylation promotes its membrane expression and activates the TRPV1-Ca2+-AMPK signaling pathway, thereby inhibiting GC cell proliferation and migration. These findings enhance our understanding of the molecular dynamics in gastric cancer and could provide a new theoretical basis for clinical treatment strategies.
2024-10-15 | GSE262378 | GEO