Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

BAF45D Cooperates with SMAD Signaling and Promotes Early Neural Differentiation in P19 Cells

ABSTRACT: We sought to explore whether BAF45D regulates PAX6 expression through cooperating with TGF-beta/SMAD signaling in RA treated P19 cells. Here we identified BAF45D is required for expression of phosphorylated SMAD3 and PAX6 induced by RA. Genome-wide analysis revealed that during RA-induced early neural differentiation, BAF45D knockdown failed to activate TGF-beta/SMAD signaling and induce expression of Stat3 and Smad7, two negative regulators of TGF-beta/SMAD signaling. Moreover, BAF45D was immunoprecipited with BRG1and phosphorylated SMAD3. In addition, Smad3 siRNA abolished RA-indueced expression of phosphorylated SMAD3, PAX6, STAT3 and SMAD7. Finally, overexpression of BAF45D directly induced expression of PAX6 and phosphorylated SMAD3.These results suggest that a novel effect of BAF45D cooperating with TGF-beta/SMAD signaling pathway on PAX6 level control, which may shed new light on neural differentiation of P19 cells.

ORGANISM(S): Mus musculus

PROVIDER: GSE164125 | GEO | 2021/09/30

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Endogenous Smad7 restrains myofibroblast activation and protects from post-infarction heart failure by suppressing TGF-b signaling and by directly inhibiting Erbb2

Project description:Repair of the infarcted heart requires TGFβ-Smad3 signaling in cardiac myofibroblasts. However, TGF-β-driven myofibroblast activation needs to be tightly regulated in order to prevent excessive fibrosis and adverse remodeling that may precipitate heart failure. We hypothesized that induction of the inhibitory Smad, Smad7 may restrain infarct myofibroblast activation, and we examined the molecular mechanisms of Smad7 actions. In a mouse model of non-reperfused infarction, Smad3 activation triggered Smad7 synthesis in β-SMA+ infarct myofibroblasts, but not in β-SMA-/PDGFRα+ fibroblasts. Myofibroblast-specific Smad7 loss increased heart failure-related mortality, worsened dysfunction, and accentuated fibrosis in the infarct border zone and in the papillary muscles. Smad7 attenuated myofibroblast activation and reduced synthesis of structural and matricellular extracellular matrix proteins. Smad7 actions on TGF-β cascades involved de-activation of Smad2/3 and non-Smad pathways, without any effects on TGF-β receptor activity. Unbiased transcriptomic and proteomic analysis identified receptor tyrosine kinase signaling as a major target of Smad7. Smad7 interacted with Erbb2 in a TGF-independent manner and restrained Erbb1/Erbb2 activation, suppressing fibroblast expression of fibrogenic proteases, integrins and CD44. Smad7 induction in myofibroblasts serves as an endogenous TGF-β-induced negative feedback mechanism that inhibits post-infarction fibrosis by restraining Smad-dependent and Smad-independent TGF-β responses, and by suppressing TGF-independent fibrogenic actions of Erbb2.

2021-11-11 | GSE185767 | GEO

Long noncoding RNA ELIT-1 acts as a Smad3 cofactor to facilitate TGF-β/Smad signaling and promote epithelial-mesenchymal transition

Project description:TGF-β is involved in various biological processes, including development, differentiation, growth regulation, and epithelial-mesenchymal transition (EMT). In TGF-β/Smad signaling, receptor-activated Smad complexes activate or repress their target gene promoters. Smad cofactors are a group of Smad-binding proteins that promote recruitment of Smad complexes to these promoters. Long noncoding RNAs (lncRNAs), that behave as Smad cofactors have thus far not been identified. Here, we characterize a novel lncRNA EMT-associated lncRNA induced by TGF-β-1(ELIT-1). ELIT-1 was induced by TGF-β-stimulation via the TGF-β/Smad pathway in TGF-β-responsive cell lines. ELIT-1-depletion abrogated TGF-β-mediated EMT progression and expression of TGF-β target genes including Snail, a transcription factor critical for EMT. A positive correlation between high expression of ELIT-1 and poor prognosis in lung adenocarcinoma and gastric cancer patients suggests that ELIT-1 may be useful as a prognostic and therapeutic target. RIP assays revealed that ELIT-1 bound to Smad3, but not Smad2. In conjunction with Smad3, ELIT-1 enhanced Smad-responsive promoter activities by recruiting Smad3 to the promoters of its target genes including Snail, other TGF-β-target genes, and ELIT-1 itself. Collectively, these data show that ELIT-1 is a novel trans-acting lncRNA that forms a positive feedback loop to enhance TGF-β/Smad3 signaling and promote EMT progression.

2019-04-12 | GSE129008 | GEO

Long noncoding RNA ELIT-1 acts as a Smad3 cofactor to facilitate TGF-β/Smad signaling and promote epithelial-mesenchymal transition

2019-04-12 | GSE128965 | GEO

Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and Smad7-/- E15.5 tooth germ Transcriptomes

Project description:Smad7 is known to regulate both Smad-dependent and Smad-independent TGF-β signaling pathways but is also extensively involved in crosstalks with other signaling pathways. To investigate the underlying molecular mechanism, we conducted RNA-Seq analysis on E15.5 molars from Smad7 mutant and control mice.

2019-05-08 | GSE130841 | GEO

A fine-tuned regulation of Bmp2 by Nodal/TGFβ signalling induced lncRNA-Smad7

Project description:The transforming growth factor beta (TGF-β) superfamily proteins are potent regulators of cellular development and differentiation. Long non-coding RNAs (lncRNAs) play widespread roles in spatial-temporal regulation of early development. However, the roles of lncRNAs regulated by nodal/TGF-β signaling is still elusive. Here, we showed a nodal-driven Smad induced lncRNA in mouse embryonic stem cells (mESCs), lncRNA-Smad7, which is divergently transcribed to Smad7, regulates cell fate determination through repressing Bmp2. Depletion of lncRNA-Smad7 dramatically impairs cardiomyocyte differentiation in mESCs. Moreover, LncRNA-Smad7 represses Bmp2 expression and binds at the promoter region of Bmp2. Importantly, knock-down Bmp2 rescues the defect of cardiomyocyte differentiation. Hence, we showed that lncRNA-Smad7 is antagonistic to BMP signaling in mESCs. Furthermore, lncRNA-Smad7 regulates cell fate determination between osteocytes and myocytes formation in C2C12 cells by repressing Bmp2. Thus, we provide new insights regarding the antagonistic effects between nodal/TGF-β and BMP signaling via lncRNA-Smad7.

2022-10-19 | GSE178136 | GEO

Smad3 binding regions in differentiated human progenitor epidermal keratinocytes (HPEK).

Project description:Smad family proteins transduce signals downstream of transforming growth factor-beta (TGF-beta) and are one of the factors that regulate target genes related to diseases affecting the skin. We here identified C2orf54, officially known as MAB21L4, as one of the most up-regulated targets of TGF-beta and Smad3 in a differentiated human progenitor epidermal keratinocyte, using chromatin immunoprecipitation sequencing (ChIP-seq) and RNA sequencing (RNA-seq). Smad2 and Smad3 bind to the regulatory regions of the C2orf54 gene locus. We found that TGF-beta induced expression of a barrier protein involucrin (encoded by IVL gene), and transcriptional activity of the IVL promoter induced by TGF-beta was inhibited by siRNAs for C2orf54. Further analysis revealed that C2orf54 siRNAs also down-regulated the expression of several target genes of TGF-beta. C2orf54 protein located mainly in the cytosol, physically bound to Smad2 and Smad3, but did not inhibit the binding of Smad2 and Smad3 to the target genomic regions. These findings suggested that TGF-beta-induced C2orf54 up-regulates gene expression induced by Smads, possibly through its physical interaction with Smad proteins.

2021-12-16 | GSE180250 | GEO

RNA-seq in human progenitor epidermal keratinocytes (HPEK) stimulated with TGF-beta.

2021-12-16 | GSE180251 | GEO

Loss of smad7 promoted the stromal-myofibroblast transition of endometrium via autophagy

Project description:Background: Abnormal autophagy and TGFβ-SMAD3/7 signaling pathway plays an important role in intrauterine adhesions (IUA); however, the exact underlying mechanisms remain unclear. In this study, we aimed to detect whether SMAD7 effected IUA via regulating autophagy and TGFβ-SMAD3 signaling pathway. Methods: The expression of p-SMAD3 and SMAD7 were detected by Immunohistochemistry. Endometrial fibrosis was detected by masson staining. The expression of protein related to autophagy and fibrosis was detected by western blot. The autophagic flux was monitored via Tandem mRFP-GFP-LC3 fluorescence system. Chip assay was used for SMAD3 binding site analysis. SMAD7 knockout mice were used to investigate the regulation of SMAD7 on intrauterine adhesions and autophagy. Results: we observed that patients with IUA exhibited a lower expression of SMAD7. In endometrial stromal cells, the silencing of SMAD7 inhibited autophagic flux, whereas overexpressed SMAD7 promoted autophagic flux. We also found that SMAD7-mediated autophagic flux regulated stromal-myofibroblast transition. These phenotypes are regulated by the transforming growth factor (TGF)β-SMAD3 signaling pathway. We found that SMAD3 directly binds to the 3ʹ-untranslated region of transcription factor EB (TFEB) and inhibits its transcription. SMAD7 promoted autophagic flux by inhibiting SMAD3, thereby promoting the expression of TFEB. The endometria of SMAD7 knockout mice showed a fibrotic phenotype. Simultaneously, autophagic flux was inhibited. On administering the autophagy activator rapamycin, endometrial fibrosis of SMAD7 gene conditional knockout mice was partially restored. Conclusions: The loss of SMAD7 promotes endometrial fibrosis by inhibited autophagic flux via the TGFβ-SMAD3 pathway. Therefore, this study reveals a potential therapeutic target for IUA.

2024-10-11 | GSE272824 | GEO

Transcription profiling timecourse of induced DACH1 expression in a human breast cancer cell line

Project description:The vertebrate homologues of Drosophila dachsund, DACH1 and DACH2, have been implicated as important regulatory genes in development. DACH1 plays a role in retinal and pituitary precursor cell proliferation and DACH2 plays a specific role in myogenesis. DACH proteins contain a domain (DS-domain) that is conserved with the proto-oncogenes Ski and Sno. Since the Ski/Sno proto-oncogenes repress AP-1 and SMAD signaling, we hypothesized that DACH1 might play a similar cellular function. Herein, DACH1 was found to be expressed in breast cancer cell lines and to inhibit TGF-beta induced apoptosis. DACH1 repressed TGF-beta induction of AP-1 and Smad signaling in gene reporter assays and repressed endogenous TGF-beta responsive genes by microarray analyses. DACH1 bound to endogenous NCoR and Smad4 in cultured cells and DACH1 co-localized with NCoR in nuclear dot-like structures. NCoR enhanced DACH1 repression and the repression of TGF-beta-induced AP-1 or Smad-signaling by DACH1 required the DACH1 DS domain. The DS-domain of DACH was sufficient for NCoR-binding at a Smad4-binding site. Smad4 was required for DACH1 repression of Smad signaling. In Smad4 null HTB-134 cells, DACH1 inhibited the activation of SBE-4 reporter activity induced by Smad2 or Smad3 only in the presence of Smad4. DACH1 participates in the negative regulation of TGF-beta signaling by interacting with NCoR and Smad4.

2007-07-19 | E-GEOD-685 | biostudies-arrayexpress

Olig1 is a Smad cofactor involved in cell motility induced by transforming growth factor-b

Project description:Transforming growth factor (TGF)-β plays crucial roles in embryonic development and adult tissue homeostasis by eliciting various cellular responses in target cells. TGF-β signaling is principally mediated through receptor-activated Smad proteins, which regulate expression of target genes in cooperation with other DNA-binding transcriptionfactors (Smad cofactors). In this study, we found that the basic helix-loop-helix transcription factor Olig1 is a Smad cofactor involved in TGF-b-induced cell motility. Knockdown of Olig1 attenuated TGF-β-induced cell motility in chamber migration and wound healing assays. In contrast, Olig1 knockdown had no effect on bone morphogenetic protein-induced cell motility, TGF-β-induced cytostasis or epithelial-mesenchymal transition. Furthermore, we observed that cooperation of Smad2/3 with Olig1 is regulated by a peptidyl-prolyl cis/trans isomerase, Pin1. TGF-b-induced cell motility, induction of Olig1-regulated genes, and physical interaction between Smad2/3 and Olig1 were all inhibited after knockdown of Pin1, indicating a novel mode of regulation of Smad signaling. We also found that Olig1 interacts with the L3 loop of Smad3. Using a synthetic peptide corresponding to the L3 loop of Smad3, we succeeded in selectively inhibiting TGF-b-induced cell motility. These findings may lead to a new strategy for selective regulation of TGF-b-induced cellular responses.

2013-07-01 | GSE46405 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

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