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DNA de novo (de)Methylation in the Kidney Contributes to Salt-Induced Hypertension

ABSTRACT: DNA de novo (de)Methylation in the Kidney Contributes to Salt-Induced Hypertension

PROVIDER: PRJNA470982 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR7151750_1.fastq.gz	Fastqsanger.gz
	SRR7151750_2.fastq.gz	Fastqsanger.gz
	SRR7151760_1.fastq.gz	Fastqsanger.gz
	SRR7151760_2.fastq.gz	Fastqsanger.gz
	SRR7151770_1.fastq.gz	Fastqsanger.gz

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DNA de novo (de)Methylation in the Kidney Contributes to Salt-Induced Hypertension [RNA-seq]

Project description:Numerous adult diseases involving tissues that consist primarily of non-dividing cells are associated with changes in DNA methylation. It suggests a role for de novo methylation or demethylation of DNA, which is catalyzed by DNA methyltransferase 3 (Dnmt3) and ten-eleven translocases (Tet). However, the contribution of DNA de novo (de)methylation to these diseases remains nearly completely unproven. Broad changes in DNA methylation occurred within days in the renal outer medulla of Dahl SS rats fed a high-salt diet, a classic model of hypertension. Intra-renal administration of anti-Dnmt3a/Tet3 GapmeR’s attenuated high salt-induced hypertension in SS rats. The high salt diet induced differential expression of 1,712 genes in the renal outer medulla. Remarkably, the differential expression of 76% of these genes were prevented by anti-Dnmt3a/Tet3 GapmeR’s. The genes differentially expressed in response to the GapmeR’s were involved in the regulation of metabolism and inflammation and were significantly enriched for genes showing differential methylation in response to the GapmeR’s. These data indicate DNA de novo (de)methylation in the kidney contributes to the development of hypertension in SS rats. The findings should help to shift the paradigm of DNA methylation research in diseases involving non-dividing cells from correlative analysis to functional and mechanistic studies.

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DNA de novo (de)Methylation in the Kidney Contributes to Salt-Induced Hypertension [RRBS-seq]

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DNA de novo (de)Methylation in the Kidney Contributes to Salt-Induced Hypertension [RRBS-seq]

Project description:DNA de novo (de)Methylation in the Kidney Contributes to Salt-Induced Hypertension [RRBS-seq]

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DNA de novo (de)Methylation in the Kidney Contributes to Salt-Induced Hypertension [RNA-seq]

Project description:DNA de novo (de)Methylation in the Kidney Contributes to Salt-Induced Hypertension [RNA-seq]

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DNA de novo (de)Methylation in the Kidney Contributes to Salt-Induced Hypertension

Project description:This SuperSeries is composed of the SubSeries listed below.

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Urinary phosphate-containing nanoparticle contributes to inflammation and kidney injury in salt-sensitive hypertension

Project description:Although disturbed phosphate metabolism frequently accompanies chronic kidney disease, it is unclear whether it contributes to the progression of renal dysfunction. Here, we show that urinary phosphate-containing nanoparticles promote kidney injury in salt-sensitive hypertension. Remarkably, four weeks of high salt loading resulted in a 2.5-fold increase in urinary phosphate excretion in Dahl salt-sensitive rats on a normal phosphorus diet. Inhibition of intestinal phosphate absorption using sucroferric oxyhydroxide (SF) in this model suppressed phosphaturia, attenuating glomerulosclerosis and tubulointerstitial injury without significantly affecting serum phosphate, blood pressure, or urinary sodium levels. In the kidney, macrophage infiltration and inflammatory cytokine induction were ameliorated by SF. Additionally, macrophage infiltration but not myofibril hypertrophy was alleviated in the heart. In vitro, phosphate loading to proximal tubule cells significantly increased inflammatory cytokine Ccl2, which was abolished by the removal of phosphate-containing nanoparticles but not by the knockdown of phosphate transporter Slc34a1. Finally, transcriptome analysis revealed a potential role of complement C1q in renal inflammation associated with disturbed phosphate metabolism. These data demonstrate that increased phosphaturia promotes inflammation and renal injury from an early stage of salt-sensitive hypertension, and suggest the need for interventions against subclinical phosphate accumulation to improve the prognosis of hypertensive kidney disease.

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Role of DNA De Novo (De)Methylation in the Kidney in Salt-Induced Hypertension.

Project description:Numerous adult diseases involving tissues consisting primarily of nondividing cells are associated with changes in DNA methylation. It suggests a pathophysiological role for de novo methylation or demethylation of DNA, which is catalyzed by DNA methyltransferase 3 and ten-eleven translocases. However, the contribution of DNA de novo (de)methylation to these diseases remains almost completely unproven. Broad changes in DNA methylation occurred within days in the renal outer medulla of Dahl SS rats fed a high-salt diet, a classic model of hypertension. Intrarenal administration of anti-DNA methyltransferase 3a/ten-eleven translocase 3 GapmeRs attenuated high salt-induced hypertension in SS rats. The high-salt diet induced differential expression of 1712 genes in the renal outer medulla. Remarkably, the differential expression of 76% of these genes was prevented by anti-DNA methyltransferase 3a/ten-eleven translocase 3 GapmeRs. The genes differentially expressed in response to the GapmeRs were involved in the regulation of metabolism and inflammation and were significantly enriched for genes showing differential methylation in response to the GapmeRs. These data indicate a significant role of DNA de novo (de)methylation in the kidney in the development of hypertension in SS rats. The findings should help to shift the paradigm of DNA methylation research in diseases involving nondividing cells from correlative analysis to functional and mechanistic studies.

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