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NLRP2 promotes proinflammatory and chemotactic responses in proximal tubular epithelial cells

ABSTRACT: NLRP2 promotes proinflammatory and chemotactic responses in proximal tubular epithelial cells

PROVIDER: PRJNA507959 | ENA |

REPOSITORIES: ENA

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NLRP2 promotes proinflammatory and chemotactic responses in proximal tubular epithelial cells

Project description:In this study, we investigated the functional role of NLRP2 in proximal tubular epithelial cells by overexpressing it in human conditionally immortalized cells obtained from urine of a healthy subject. We found that NLRP2 markedly upregulates proinflammatory and chemotactic responses as well as downregulates interferon-mediated signaling pathways.

2018-12-04 | GSE123247 | GEO

Expression data from proximal tubular cells of proximal tubular cell-specific KAT5 knockout mice

Project description:Isolated proximal tubular cells from proximal tubular cell-specific KAT5 knockout mice for RNA extraction and hybridization on Affymetrix microarrays. We sought to obtain the physiological significance of KAT5 in proximal tubular cells.

2021-11-19 | GSE168535 | GEO

Expression data from Stx2-treated human renal proximal tubular epithelial cell (RPTEC)

Project description:Shiga toxin type 2 (Stx2) from Escherichia coli is thought to be a main factor to casue renal dysfunction in Enterohemorrhagic E. coli (EHEC) infection. The renal dysfunction caused by the proximal tubular defects can be detected in the earlier EHEC infection. However, the precise information of gene expression from proximal tubular epithelial cells has yet to be clarified. We performed microarray experiments using Stx2-injected mouse kidney and Stx2-treated human renal proximal tubular epithelial cells (RPTEC), and extracted common genes that were differentially expressed.

2022-01-01 | GSE172466 | GEO

NLRP2 Regulates Proinflammatory and Antiapoptotic Responses in Proximal Tubular Epithelial Cells.

Project description:Nod-like Receptor Pyrin domain containing proteins (NLRPs) expressed by resident renal cells may contribute to the pathogenesis of multiple renal diseases. Cystinosis is a genetic disorder that affects kidney and particularly proximal tubular epithelial cells (PTEC). Here, we investigated the expression of NLRP family members in human control and cystinotic conditionally immortalized PTEC. Among all the NLRPs tested, we found that NLRP2 is highly expressed in cystinostic PTEC, but not in PTEC from healthy subjects. The NLRP2 overexpression was confirmed in primary PTEC and in kidney biopsies from cystinotic patients. In order to elucidate the role of NLRP2 in PTEC, we stably transfected control PTEC with an NLRP2-containing plasmid. We showed that NLRP2 markedly increases the production of several NF-κB regulated cytokines and chemokines. Accordingly, we demonstrated that NLRP2 interacts with IKKa and positively regulates the DNA-binding activity of p50 and p65 NF-κB, by modulating the p65 NF-κB phosphorylation status in Serine 536. Transcriptome analysis revealed that NLRP2 also upregulates the expression of profibrotic mediators and reduces that of several interferon-inducible genes. Finally, NLRP2 overexpression decreased the apoptotic cell rate. Consistently, silencing of NLRP2 by small-interfering RNA in cystinotic PTEC resulted in a significant decrease in cytokine and chemokine production as well as in an increase in the apoptosis rate. Altogether, our data reveals a previously unrecognized role for NLRP2 in regulating proinflammatory, profibrotic and antiapoptotic responses in PTEC, through NF-κB activation. Moreover, our findings unveil a novel potential mechanism involving NLRP2 overexpression in the pathogenesis of cystinosis.

| S-EPMC6822264 | biostudies-literature

Expression data from proximal tubular cells of proximal tubular cell-specific KAT5 knockout mice

Project description:Expression data from proximal tubular cells of proximal tubular cell-specific KAT5 knockout mice

| PRJNA708226 | ENA

C-peptide regulates early transcription in rat proximal tubular cells

Project description:C-peptide exerts beneficial effects on glomerular hyperfiltration in type I diabetic patients. As C-peptide localizes to the nucleus, we investigated the transcriptional activities of C-peptide in proximal tubular cells isolated from diabetic rats. Two groups of proximal tubular cells isolated from type I diabetic rats: 1 treated with C-peptide, and 1 untreated. 2-3 replicates per group.

2011-07-26 | E-GEOD-24687 | biostudies-arrayexpress

Transcription profiling of human proximal tubular epithelial cells inclubated with 5% plasma from septic patients or healthy volunteers

Project description:proximal tubular epithelial cell apoptosis were incubated with 5% plasma of septic patients or healthy volunteers diluited in RPMI 1640

2008-03-15 | E-MEXP-1510 | biostudies-arrayexpress

Proximal tubular transcriptional response to aristolochic acid

Project description:Proximal tubular transcriptional response to aristolochic acid

| PRJNA634008 | ENA

Proximal tubular epithelial specific transcriptomics of diabetic mice treated with dapagliflozin

Project description:We show the proximal tubular specific pathway analysis demonstrating the downregulation of oxidative phosphorylation in dapagliflozin treated db/db mice, a type 2 diabetic model. After 8-week treatment of dapagliflozin for db/db mice having proximal tubule specific tdTomato reporter, tdTomato-positive cells were isolated by FACS. Pathway analysis of RNA sequence of isolated tubular epithelia revealed that oxidative phosphorylation was downregulated in dapagliflozin-treated mice. However, depletion of renal tissue ATP content in db/db mice was ameliorated by dapagliflozin administration. Pimonidazole staining demonstrated that renal cortical tissue hypoxia was noted in db/db mice, which was improved by dapagliflozin administration. These findings suggest that dapagliflozin can ameliorated the excessive oxygen and ATP consumption and subsequent tissue hypoxia in diabetic kidney, which may explain, in part, the responsible mechanisms of renoprotecitive effect by dapagliflozin.

2022-09-28 | GSE185801 | GEO

Single-Nucleus RNA Sequencing Identifies New Classes of Proximal Tubular Epithelial Cells in Kidney Fibrosis

Project description:The study used a clinically relevant mouse model of chronic aristolochic acid nephropathy (AAN) to investigate the responses of proximal tubular cells during kidney fibrosis by single-nucleus RNA sequencing. The experiment involved 4 mice with AAN induced chronic renal fibrosis and 4 naive controls.

2021-06-23 | E-MTAB-9390 | biostudies-arrayexpress

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