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Transcription factor hepatocyte nuclear factor 1β controls a transcriptional network regulating cell polarity in kidney cells

ABSTRACT: Transcription factor hepatocyte nuclear factor 1β controls a transcriptional network regulating cell polarity in kidney cells

PROVIDER: PRJNA807311 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18038510.fastq.gz	Fastqsanger.gz
	SRR18038511_1.fastq.gz	Fastqsanger.gz
	SRR18038511_2.fastq.gz	Fastqsanger.gz
	SRR18038512_1.fastq.gz	Fastqsanger.gz
	SRR18038512_2.fastq.gz	Fastqsanger.gz

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Hepatocyte nuclear factor 1β binding in E14.5 kidney

Project description:Hepatocyte nuclear factor 1β binding in E14.5 kidney

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Hepatocyte nuclear factor 1β binding in E14.5 kidney

Project description:HNF-1β mutations are one of the most common single-gene mutations that underlie kidney developmental disease. Hepatocyte nuclear factor 1β (HNF-1β) is essential for kidney development, but its functions in kidney development are incompletely understood. We identified 8284 HNF-1β binding sites using ChIP-sequencing. The majority of these peaks map to promoter (26%), intron (34%) or distal intergenic regions (37.4%) of the mouse genome. 61% of peaks map to protein coding genes, 12% map to long-noncoding RNAs, and 2% map to miRNAs.

2022-10-20 | GSE205189 | GEO

Hepatocyte nuclear factor 1β gene regulation in E14.5 ureteric bud cells

Project description:HNF-1β mutations are one of the most common single-gene mutations that underlie kidney developmental disease. Hepatocyte nuclear factor 1β (HNF-1β) is essential for kidney development, but its functions in ureteric bud (UB) branching morphogenesis are incompletely understood. We isolated E14.5 UB cells using fluorescence-activated cell sorting, and performed RNA-sequencing to compare gene expression in wild-type and HNF-1β deficient UB cells. 1632 genes have significantly lower expression in the HNF-1β deficient UB cells and 2223 genes have significantly higher expression in HNF-1β deficient UB cells.

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Hepatocyte nuclear factor 1β gene regulation in E14.5 ureteric bud cells

Project description:Hepatocyte nuclear factor 1β gene regulation in E14.5 ureteric bud cells

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Hepatocyte nuclear factor-1β regulates Wnt signaling through genome-wide competition with β-catenin/lymphoid enhancer binding factor

Project description:Hepatocyte nuclear factor-1β (HNF-1β) is a tissue-specific transcription factor that is essential for normal kidney development and renal tubular function. Mutations of HNF-1β produce cystic kidney disease, a phenotype associated with deregulation of canonical (β-catenin-dependent) Wnt signaling. Here, we show that ablation of HNF-1β in mIMCD3 renal epithelial cells produces hyperresponsiveness to Wnt ligands and increases expression of Wnt target genes, including Axin2, Ccdc80, and Rnf43. Levels of β-catenin and expression of Wnt target genes are also increased in HNF-1β mutant mouse kidneys. Genome-wide ChIP-seq in wild-type and mutant cells showed that ablation of HNF-1β increases by five-fold the number of sites on chromatin that are occupied by β-catenin. Remarkably, 50% of the sites that are occupied by β-catenin in HNF-1β mutant cells colocalize with HNF-1β binding sites in wild-type cells, indicating widespread reciprocal binding. We found that the Wnt target genes Ccdc80 and Rnf43 contain a novel composite DNA element comprising a β-catenin/lymphoid enhancer binding factor (LEF) site overlapping with an HNF-1β half-site. HNF-1β directly competes with the binding of β-catenin/LEF complexes to this element and thereby inhibits β-catenin-dependent transcription. Collectively, these studies reveal a novel mechanism whereby a transcription factor constrains canonical Wnt signaling through direct inhibition of β-catenin/LEF chromatin binding.

2019-11-11 | GSE130164 | GEO

Hepatocyte nuclear factor-1β regulates Wnt signaling through genome-wide competition with β-catenin/lymphoid enhancer binding factor

Project description:Hepatocyte nuclear factor-1β regulates Wnt signaling through genome-wide competition with β-catenin/lymphoid enhancer binding factor

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Transcription factor hepatocyte nuclear factor 1β controls a transcriptional network regulating cell polarity in kidney cells

Project description:Mutations or deletions in HNF1β cause autosomal dominant tubulointerstitial kidney disease (ADTKD)-HNF1β, a rare and heterogenous disease characterized by renal cysts and/or malformation, maturity-onset diabetes of the young, hypomagnesemia, hypokalemia and hypocalciuria. The electrolyte disturbances may develop in the distal part of the nephron, which is important for finetuning of Mg2+, Ca2+, K+ reabsorption. Moreover, this segment is a prevalent site of cyst formation in ADTKD-HNF1β patients. Therefore, we aim to study the transcriptional network directed by HNF1β in the distal part of the nephron. For this we combined HNF1β ChIP-seq and mRNA expression data to identify direct targets of HNF1β in a renal distal convoluted tubule cell line (mpkDCT).

2023-07-23 | GSE196785 | GEO

Transcription Factor Hepatocyte Nuclear Factor-1β Regulates Renal Cholesterol Metabolism.

Project description:HNF-1β is a tissue-specific transcription factor that is expressed in the kidney and other epithelial organs. Humans with mutations in HNF-1β develop kidney cysts, and HNF-1β regulates the transcription of several cystic disease genes. However, the complete spectrum of HNF-1β-regulated genes and pathways is not known. Here, using chromatin immunoprecipitation/next generation sequencing and gene expression profiling, we identified 1545 protein-coding genes that are directly regulated by HNF-1β in murine kidney epithelial cells. Pathway analysis predicted that HNF-1β regulates cholesterol metabolism. Expression of dominant negative mutant HNF-1β or kidney-specific inactivation of HNF-1β decreased the expression of genes that are essential for cholesterol synthesis, including sterol regulatory element binding factor 2 (Srebf2) and 3-hydroxy-3-methylglutaryl-CoA reductase (Hmgcr). HNF-1β mutant cells also expressed lower levels of cholesterol biosynthetic intermediates and had a lower rate of cholesterol synthesis than control cells. Additionally, depletion of cholesterol in the culture medium mitigated the inhibitory effects of mutant HNF-1β on the proteins encoded by Srebf2 and Hmgcr, and HNF-1β directly controlled the renal epithelial expression of proprotein convertase subtilisin-like kexin type 9, a key regulator of cholesterol uptake. These findings reveal a novel role of HNF-1β in a transcriptional network that regulates intrarenal cholesterol metabolism.

| S-EPMC4978044 | biostudies-literature

Inactivation of transcription factor HNF-1β with CRISPR/Cas9 induces epithelial-mesenchymal transition

Project description:Hepatocyte nuclear factor-1β (HNF-1β) is a tissue-specific transcription factor that is essential for the development of the kidney. Mutations of HNF-1β produce autosomal dominant tubulointerstitial kidney disease (ADTKD) characterized by tubular cysts, renal fibrosis, and progressive decline in kidney function. To understand the functions of HNF-1β, we generated HNF-1β-deficient mIMCD3 renal epithelial cells. Gene editing with CRISPR/Cas9 was used to delete exon 1 of HNF-1β by non-homologous end joining (NHEJ). We performed RNA-seq on three independent HNF-1β-deficient mIMCD3 cell lines and three paired control cell lines. Our RNA-seq of HNF-1β-deficient cells showed upregulation of 1,135 genes and repression of 759 genes compared to control cells. Pathway analysis revealed that fibrosis and epithelial-mesenchymal transition (EMT) pathways were highly activated in HNF-1β-deficient cells. We conclude that loss of HNF-1β in renal epithelial cells leads to the activation of a transcriptional network that induces EMT and aberrant TGFβ signaling. Targeting this network may inhibit fibrosis in ADTKD and other chronic kidney diseases.

2018-08-10 | GSE97770 | GEO

Hepatocyte Nuclear Factor-1β Induces Redifferentiation of Dedifferentiated Tubular Epithelial Cells.

Project description:Tubular epithelial cells (TECs) can be dedifferentiated by repetitive insults, which activate scar-producing cells generated from interstitial cells such as fibroblasts, leading to the accumulation and deposition of extracellular matrix molecules. The dedifferentiated TECs play a crucial role in the development of renal fibrosis. Therefore, renal fibrosis may be attenuated if dedifferentiated TECs are converted back to their normal state (re-epithelialization). However, the mechanism underlying the re-epithelialization remains to be elucidated. In the present study, TGF-β1, a profibrotic cytokine, induced dedifferentiation of cultured TECs, and the dedifferentiated TECs were re-epithelialized by the removal of TGF-β1 stimulation. In the re-epithelialization process, transcription factor hepatocyte nuclear factor 1, beta (HNF-1β) was identified as a candidate molecule involved in inducing re-epithelialization by means of DNA microarray and biological network analysis. In functional validation studies, the re-epithelialization by TGF-β1 removal was abolished by HNF-1β knockdown. Furthermore, the ectopic expression of HNF-1β in the dedifferentiated TECs induced the re-epithelialization without the inhibition of TGF-β/Smad signaling, even in the presence of TGF-β1 stimulation. In mouse renal fibrosis model, unilateral ureteral obstruction model, HNF-1β expression in the TECs of the kidney was suppressed with fibrosis progression. Furthermore, the HNF-1β downregulated TECs resulted in dedifferentiation, which was characterized by expression of nestin. In conclusion, HNF-1β suppression in TECs is a crucial event for the dedifferentiation of TECs, and the upregulation of HNF-1β in TECs has a potential to restore the dedifferentiated TECs into their normal state, leading to the attenuation of renal fibrosis.

| S-EPMC4873210 | biostudies-literature

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