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Dido as a switchboard that regulates self-renewal and differentiation in embryonic stem cells (vsmut)

ABSTRACT: Transition from symmetric to asymmetric cell division requires precise coordination of differential gene expression. Embryonic stem cells (ESC) strongly express Dido3, whose C-terminal truncation impedes ESC differentiation while retaining self-renewal. We show that Dido3 binds to its gene locus via H3K4me3 and RNA pol II and, at differentiation onset, induces expression of its splice variant Dido1, which then leads to Dido3 degradation and downregulation of stemness genes. We propose that Dido isoforms act as a switchboard to regulate genetic programs for ESC transition from pluripotency maintenance to promotion of differentiation. We used microarrays to determine how the deletion of exon 16 (C-terminal truncation) of the Dido3 affects gene expression that results in the suppression of ESC differentiation.

ORGANISM(S): Mus musculus

PROVIDER: GSE85025 | GEO | 2017/03/16

SECONDARY ACCESSION(S): PRJNA335985

REPOSITORIES: GEO

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Dido as a switchboard that regulates self-renewal and differentiation in embryonic stem cells (vsmutNT)

Project description:Transition from symmetric to asymmetric cell division requires precise coordination of differential gene expression. Embryonic stem cells (ESC) strongly express Dido3, whose C-terminal truncation impedes ESC differentiation while retaining self-renewal. We show that Dido3 binds to its gene locus via H3K4me3 and RNA pol II and, at differentiation onset, induces expression of its splice variant Dido1, which then leads to Dido3 degradation and downregulation of stemness genes. We propose that Dido isoforms act as a switchboard to regulate genetic programs for ESC transition from pluripotency maintenance to promotion of differentiation. We used microarrays to determine how the deletion of exon 16 (C-terminal truncation) of the Dido3 affects gene expression that results in the suppression of ESC differentiation.

2017-03-16 | GSE85027 | GEO

Dido as a switchboard that regulates self-renewal and differentiation in embryonic stem cells (vsmutCT)

2017-03-16 | GSE85026 | GEO

Dido as a switchboard that regulates self-renewal and differentiation in embryonic stem cells (Affy)

2017-03-16 | GSE85006 | GEO

Dido as a switchboard that regulates self-renewal and differentiation in embryonic stem cells (ChIP-seq)

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The SPOC proteins DIDO3 and PHF3 co-regulate gene expression and neuronal differentiation - RNAseq

Project description:Transcription is regulated by a multitude of activators and repressors, which bind to the RNA polymerase II (Pol II) machinery and modulate its progression. Death-inducer obliterator (DIDO) and PHD finger protein 3 (PHF3) are paralogue proteins that regulate transcription elongation by docking onto phosphorylated serine-2 in the C-terminal domain (CTD) of Pol II through their SPOC domains. Here we show that DIDO3 and PHF3 form a complex that bridges the Pol II elongation machinery with chromatin and RNA processing factors, and tethers Pol II in a phase-separated microenvironment. Their SPOC domains and C-terminal intrinsically disordered regions are critical for transcription regulation. PHF3 and DIDO exert cooperative and antagonistic effects on the expression of neuronal genes and are both essential for neuronal differentiation. The dataset contains RNAseq of HEK293 cells with various perturbations of PHF3 and DIDO1 genes.

2023-11-16 | E-MTAB-12782 | biostudies-arrayexpress

Impaired stem cell differentiation and somatic cell reprogramming in DIDO3 mutants with altered RNA processing and increased R-loop levels

Project description:Embryonic stem cell (ESC) differentiation and somatic cell reprogramming are biological processes governed by antagonistic expression or repression of a largely common set of genes. Accurate regulation of gene expression is thus essential for both processes, and alterations in RNA processing are predicted to negatively affect both. We show that truncation of the DIDO gene alters RNA splicing and transcription termination in ESC and mouse embryo fibroblasts (MEF), which affects genes involved in both differentiation and reprogramming. We combined transcriptomic, protein interaction, and cellular studies to identify the underlying molecular mechanism. We found that DIDO3 interacts with the helicase DHX9, which is involved in R-loop processing and transcription termination, and that DIDO3-exon16 deletion increases nuclear R-loop content and causes DNA replication stress. Overall, these defects result in failure of ESC to differentiate and of MEF to be reprogrammed. MEF immortalization restored impaired reprogramming capacity. We conclude that DIDO3 has essential functions in ESC differentiation and somatic cell reprogramming by supporting accurate RNA metabolism, with its exon16-encoded domain playing the main role.

2021-06-18 | GSE152346 | GEO

DIDO is necessary for the adipogenesis that promotes diet-induced obesity

Project description:The prevalence of overweight and obesity continues to rise in the population worldwide. Because it is an important predisposing factor for cancer, cardiovascular diseases, diabetes mellitus, and COVID-19, obesity reduces life expectancy. Adipose tissue (AT), the main fat storage organ with endocrine capacity, plays fundamental roles in systemic metabolism and obesity-related diseases. Dysfunctional AT can induce excess or reduced body fat (lipodystrophy). Dido1 is a marker gene for stemness; gene-targeting experiments compromised several functions ranging from cell division to embryonic stem cell differentiation, both in vivo and in vitro. We report that mutant mice lacking the DIDO N terminus show a lean phenotype. This consists of reduced AT and hypolipidemia, even when mice are fed a high-nutrient diet. DIDO mutation caused hypothermia due to lipoatrophy of white adipose tissue (WAT) and dermal fat thinning. Deep sequencing of the epididymal white fat (Epi WAT) transcriptome supported Dido1 control of the cellular lipid metabolic process. We found that, by controlling the expression of transcription factors such as C/EBPα or PPARγ, Dido1 is necessary for adipocyte differentiation, and that restoring their expression reestablished adipogenesis capacity in Dido1 mutants. Our model differs from other lipodystrophic mice and could constitute a new system for the development of therapeutic intervention in obesity.

2024-01-09 | GSE236036 | GEO

DIDO is necessary for the adipogenesis that promotes diet-induced obesity [II]

Project description:The prevalence of overweight and obesity continues to rise in the population worldwide. Because it is an important predisposing factor for cancer, cardiovascular diseases, diabetes mellitus, and COVID-19, obesity reduces life expectancy. Adipose tissue (AT), the main fat storage organ with endocrine capacity, plays fundamental roles in systemic metabolism and obesity-related diseases. Dysfunctional AT can induce excess or reduced body fat (lipodystrophy). Dido1 is a marker gene for stemness; gene-targeting experiments compromised several functions ranging from cell division to embryonic stem cell differentiation, both in vivo and in vitro. We report that mutant mice lacking the DIDO N terminus show a lean phenotype. This consists of reduced AT and hypolipidemia, even when mice are fed a high nutrient diet. DIDO mutation caused hypothermia due to lipoatrophy of white adipose tissue (WAT) and dermal fat thinning. Deep sequencing of the epididymal white fat (Epi WAT) transcriptome supported Dido1 control of the lipid metabolic process. We found that, by controlling expression of transcription factors such as C/EBPα or PPARγ, Dido1 is necessary for adipocyte differentiation, and that restoring their expression reestablished adipogenesis capacity in Dido1 mutants. Our model differs from other lipodystrophic mice and could constitute a new system for the development of therapeutic intervention in obesity.

2024-01-09 | GSE236034 | GEO

Dido as a switchboard that regulates self-renewal and differentiation in embryonic stem cells

Project description:Dido as a switchboard that regulates self-renewal and differentiation in embryonic stem cells

| PRJNA335995 | ENA

DIDO is necessary for adipogenesis promoting diet-induced obesity [I]

Project description:Rates of overweight and obesity continue to rise in the population worldwide. Obesity reduces life expectancy because it is an important predisposing factor for cancer, cardiovascular diseases and diabetes mellitus. Adipose tissue (AT), the main organ for fat storage with endocrine capacity, plays fundamental roles in systemic metabolism and in obesity-related diseases. Adiposity and lipodystrophy are associated with metabolic disorders, indicating that normal AT function is required for metabolic health. Dido1 is a marker gene for stemness and gene-targeting experiments compromised several functions from cell division to embryonic stem cell differentiation, in vivo and in vitro. Using animals carrying a DIDO mutant without the N-terminal, we report that these mice display a lean phenotype with reduced adipose tissue and hypolipidemia even when fed with an obesogenic diet. The phenotype related to impaired adipogenesis, partially corrected by transcription factors C/EBPα or PPARγ expression and to hypothermia subsequent to dermal fat thinning. Deep sequencing of the epididymal white fat (Epi WAT) transcriptome shows the role of Dido1 in the control of cellular lipases. The molecular analysis involves Dido1 in orchestrating adipogenesis and altogether offers a model different from described lipodystrophies in mice and pioneers a new path to understand obesity and identify mechanism for obesity intervention.

2024-01-09 | GSE195908 | GEO

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