Yin Yang 1 sets up the stage for cerebellar astrocyte maturation
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA701964 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13713000.fastq.gz | Fastqsanger.gz | |||
| SRR13713001.fastq.gz | Fastqsanger.gz | |||
| SRR13713002.fastq.gz | Fastqsanger.gz | |||
| SRR13713003.fastq.gz | Fastqsanger.gz | |||
| SRR13713004.fastq.gz | Fastqsanger.gz |
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Project description:Diverse subpopulations of astrocytes tile different brain regions to accommodate local requirements of neurons and associated neuronal circuits. Nevertheless, molecular mechanisms governing astrocyte diversity remain mostly unknown. We explored the role of a zinc finger transcription factor Yin Yang 1 (YY1) that is expressed in astrocytes. We found that specific deletion of YY1 from astrocytes causes severe motor deficits in mice, induces Bergmann gliosis, and results in simultaneous loss of GFAP expression in velate and fibrous cerebellar astrocytes. Single cell RNA-seq analysis showed that YY1 exerts specific effects on gene expression in subpopulations of cerebellar astrocytes. We found that although YY1 is dispensable for the initial stages of astrocyte development, it regulates subtype-specific gene expression during astrocyte maturation. Moreover, YY1 is continuously needed to maintain astrocyte identity in the adult cerebellum. Our findings suggest that YY1 plays critical roles regulating cerebellar astrocyte maturation during development and maintaining a mature phenotype of astrocytes in the adult cerebellum.
2022-04-01 | GSE166792 | GEO
Project description:Diverse subpopulations of astrocytes tile different brain regions to accommodate local requirements of neurons and associated neuronal circuits. Nevertheless, molecular mechanisms governing astrocyte diversity remain mostly unknown. We explored the role of a zinc finger transcription factor Yin Yang 1 (YY1) that is expressed in astrocytes. We found that specific deletion of YY1 from astrocytes causes severe motor deficits in mice, induces Bergmann gliosis, and results in simultaneous loss of GFAP expression in velate and fibrous cerebellar astrocytes. Single cell RNA-seq analysis showed that YY1 exerts specific effects on gene expression in subpopulations of cerebellar astrocytes. We found that although YY1 is dispensable for the initial stages of astrocyte development, it regulates subtype-specific gene expression during astrocyte maturation. Moreover, YY1 is continuously needed to maintain mature astrocytes in the adult cerebellum. Our findings suggest that YY1 plays critical roles regulating cerebellar astrocyte maturation during development and maintaining a mature phenotype of astrocytes in the adult cerebellum.
| S-EPMC10529878 | biostudies-literature
Project description:Investigate genes expression profiles of postmenopausal osteoporosis with kidney Yin deficiency in peripheral blood By TCM syndrome, 10 patients with postmenopausal osteoporosis were divided into three groups: kidney Yin deficiency (n=4), kidney Yang deficiency (n=3), non-kidney deficiency (n=3), another 3 healthy postmenopausal women also were selected as control group. Whole human genome oligo microarray were applied to explore gene expression difference of the groups. Kidney Yin deficiency group was compared with other three groups respectively.
2014-03-23 | E-GEOD-56116 | biostudies-arrayexpress
Project description:Protein post-translational modification (PTM) increases the functional diversity of the proteome and regulates numerous biological processes in eukaryotes. Two types of PTMs, O-linked-acetyl glucosamine modification (O-GlcNAc) and phosphorylation have been identified on the same amino acid, are considered as Yin-Yang modification for their antagonistic function recently. Vernalization, a prolonged cold exposure promoted flowering, is important for grain yield in temperate cereals, such as winter wheat. O-GlcNAcylation on TaGRP2 and phosphorylation on VER2 are involved in regulation of vernalization response (VRN) genes. However, less is known about how plant senses vernalization with general Yin-Yang modifications. Here we report that altering O-GlcNAc signaling by chemical inhibitors could change the vernalization response and affect flowering transition. Furthermore, we enriched O-GlcNAcylated and phosphorylated peptides from winter wheat plumules at different processing time points during vernalization by Lectin weak affinity chromatography (LWAC) and iTRAQ-TiO2, respectively. In total, about 200 O-GlcNAcylated proteins and 124 differential expressed phosphorylated proteins were identified by Mass Spectrum (MS). Based on GO enrichment, the identified O-GlcNAcylated proteins are mainly involved in response to abiotic stimulus and hormone, metabolic processing and gene expression. While dynamic phosphorylated proteins during vernalization participate in translation, transcription and metabolic processing. Of note, 31 proteins with both phosphorylation and O-GlcNAcylation modification were identified. Among them, TaGRP2 was further confirmed to participate in regulation of vernalization promoted flowering. The global modification profiles and genetic data at specific regulator suggested that the dynamic network of O-GlcNAcylation and phosphorylation on the key nodes regulate vernalization response and mediate flowering in wheat.
2020-12-18 | PXD008285 | Pride
Project description:Protein post-translational modification (PTM) increases the functional diversity of the proteome and regulates numerous biological processes in eukaryotes. Two types of PTMs, O-linked-acetyl glucosamine modification (O-GlcNAc) and phosphorylation have been identified on the same amino acid, are considered as Yin-Yang modification for their antagonistic function recently. Vernalization, a prolonged cold exposure promoted flowering, is important for grain yield in temperate cereals, such as winter wheat. O-GlcNAcylation on TaGRP2 and phosphorylation on VER2 are involved in regulation of vernalization response (VRN) genes. However, less is known about how plant senses vernalization with general Yin-Yang modifications. Here we report that altering O-GlcNAc signaling by chemical inhibitors could change the vernalization response and affect flowering transition. Furthermore, we enriched O-GlcNAcylated and phosphorylated peptides from winter wheat plumules at different processing time points during vernalization by Lectin weak affinity chromatography (LWAC) and iTRAQ-TiO2, respectively. In total, about 200 O-GlcNAcylated proteins and 124 differential expressed phosphorylated proteins were identified by Mass Spectrum (MS). Based on GO enrichment, the identified O-GlcNAcylated proteins are mainly involved in response to abiotic stimulus and hormone, metabolic processing and gene expression. While dynamic phosphorylated proteins during vernalization participate in translation, transcription and metabolic processing. Of note, 31 proteins with both phosphorylation and O-GlcNAcylation modification were identified. Among them, TaGRP2 was further confirmed to participate in regulation of vernalization promoted flowering. The global modification profiles and genetic data at specific regulator suggested that the dynamic network of O-GlcNAcylation and phosphorylation on the key nodes regulate vernalization response and mediate flowering in wheat.
2021-05-18 | PXD008298 | Pride
Project description:Background Also the traditional Chinese medicine (TCM) theory of "Yang transforming into Qi with Yin constituting Form" was recognized as a potential mechanism underlying the tumorigenesis. The decoction based on this theory and the underlying molecular mechanisms remained exploration. Methods A TCM decoction was prepared based on "Yang transforming into Qi with Yin constituting Form". Its anti-tumorigenesis effect was evaluated on mouse models of hepatocellular carcinoma (HCC) (H-rasG12V transgenic mice (Ras-Tg) and Diethylnitrosamine (DEN)-induced HCC mice) by liver/body weight, number and size of tumors, histopathological changes and serum biochemistry. RNA sequencing was utilized to check differentially expressed genes (DEGs) and gene ontology (GO) and KEGG were used for bioinformatics analysis. The concerned biological processes were further confirmed by RT-qPCR and metabolite detection kits. Results The TCM decoction significantly suppressed both Ras oncogene- and DEN-induced hepatic tumorigenesis evidenced by reduced serum ALT and AST levels, liver weight, liver/body weight ratio, hepatic tumor numbers and sizes. RNA sequencing showed 659 up-regulated genes and 222 down-regulated genes in comparison of liver tissues between TCM-treated and untreated Rag-Tg (n=5). GO entries and KEGG analysis revealed multiple biological processes and pathways involving the hepatic tumorigenesis suppressing effective of the TCM. Further molecular examination confirmed that activation of retinal metabolism, reduction of ROS and electrophilic levels by inhibiting the H2O2 production and promoting GSH production, and inhibition of expression of inflammation factors play pivotal roles in the anti-tumorigenesis effects of TCM. Conclusion A TCM decoction based on "Yang transforming into Qi with Yin constituting Form" showed effective anti-hepatic tumorigenesis functions and its regulation functions on retinal, ROS and inflammation processes play important roles. The present study provides valuable clue for clinical therapy on tumorigenesis.
2025-01-20 | GSE253869 | GEO
Project description:Yin Yang 1 (YY1) and Structural Maintenance of Chromosomes 3 (SMC3) are two critical chromatin structural factors that mediate long-distance enhancer-promoter interactions and promote developmentally regulated changes in chromatin architecture in hematopoietic stem/progenitor cells (HSPCs). While YY1 plays critical functions in promoting hematopoietic stem cell (HSC) self-renewal and maintaining HSC quiescence, SMC3 is required for proper myeloid lineage differentiation. However, many questions remain unanswered regarding how YY1 and SMC3 interact with each other and impact hematopoiesis. We found that YY1 physically interacts with SMC3 and co-occupies with SMC3 at a large cohort of promoters genome-wide, and YY1 deficiency deregulates the genetic network governing cell metabolism. YY1 occupies the Smc3 promoter and represses SMC3 expression in HSPCs. YY1 regulates HSC metabolic pathways and maintains proper intracellular reactive oxygen species levels in HSCs, and this regulation is independent of YY1- SMC3 axis. Our results establish a distinct YY1-SMC3 axis and its impact on HSC quiescence and metabolism.
2024-03-11 | GSE261032 | GEO
Project description:Yin Yang 1 (YY1) and Structural Maintenance of Chromosomes 3 (SMC3) are two critical chromatin structural factors that mediate long-distance enhancer-promoter interactions and promote developmentally regulated changes in chromatin architecture in hematopoietic stem/progenitor cells (HSPCs). While YY1 plays critical functions in maintaining hematopoietic stem cell (HSC) quiescence, SMC3 is required for proper lineage differentiation. However, many questions remain unanswered regarding how YY1 and SMC3 interact with each other and impact hematopoiesis. We found that YY1 physically interacts with SMC3 and co-occupies with SMC3 at a large cohort of promoters genome-wide, and YY1 deficiency deregulates the genetic network governing cell metabolism. YY1 occupies the Smc3 promoter and represses SMC3 expression in HSPCs. While deletion of one Smc3 allele partially restores HSC numbers and quiescence in YY1 knockout mice, HSC self-renewal remains defective. YY1 regulates HSC metabolic pathways and maintains proper intracellular reactive oxygen species (ROS) levels in HSCs, and this regulation is independent of YY1- SMC3 axis. Our results establish a distinct YY1-SMC3 axis and its impact on HSC quiescence, self-renewal and metabolism
2024-03-06 | GSE239743 | GEO
Project description:Mitochondrial biogenesis requires precise regulation of both mitochondrial-encoded and nuclear-encoded genes. Nuclear receptor Nur77 is known to regulate mitochondrial metabolism in macrophages and skeletal muscle cells. Here, we compared genome-wide Nur77 binding site and target gene expression in these two cell types, which revealed conserved roles for this nuclear receptor in the regulation of nuclear-encoded mitochondrial ribosomal proteins (MRP) and enrichment of motifs for the transcription factor Yin-Yang 1 (YY1). We show that Nur77 and YY1 interact, that YY1 increases Nur77 activity, and that their binding sites are co-enriched at MRP gene loci. Nur77 and YY1 co-expression synergistically increases mitochondrial abundance and activity in macrophages but not skeletal muscle. As such, we identify a macrophage-specific Nur77-YY1 interaction that enhances mitochondrial metabolism.
2024-05-07 | GSE263315 | GEO
Project description:Mitochondrial biogenesis requires precise regulation of both mitochondrial-encoded and nuclear-encoded genes. Nuclear receptor Nur77 is known to regulate mitochondrial metabolism in macrophages and skeletal muscle cells. Here, we compared genome-wide Nur77 binding site and target gene expression in these two cell types, which revealed conserved roles for this nuclear receptor in the regulation of nuclear-encoded mitochondrial ribosomal proteins (MRP) and enrichment of motifs for the transcription factor Yin-Yang 1 (YY1). We show that Nur77 and YY1 interact, that YY1 increases Nur77 activity, and that their binding sites are co-enriched at MRP gene loci. Nur77 and YY1 co-expression synergistically increases mitochondrial abundance and activity in macrophages but not skeletal muscle. As such, we identify a macrophage-specific Nur77-YY1 interaction that enhances mitochondrial metabolism.
2024-05-07 | GSE263316 | GEO