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

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

PROVIDER: PRJNA723351 | ENA |

REPOSITORIES: ENA

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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.

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Three-dimensional spherical cellular aggregates of RPTEC as an in vitro tool for evaluation of human renal proximal tubular toxicity and drug disposition

Project description:The proximal tubule plays an important role in the secretion and reabsorption of drugs in the kidney and is a major site of drug interaction and toxicity. Kidney toxicity analysis via in vitro assays is challenging as few provide appropriate proximal tubular cell function. In this study, we aimed to develop a simple and reproducible method to culture human proximal tubular epithelial cells (RPTECs), used in pharmacokinetic and toxicological evaluation by monitoring organic anion transporter (OAT)1 as a selection marker. As a result, by culturing RPTECs in spherical cellular aggregates, OAT1 protein expression, which does not increase in conventional 2D culture, increased over time and reached a similar level to that in human renal cortices from 5 different donors. The expression of proximal tubule markers, AQP1 and CDH6, was maintained, indicating that 3D RPTEC spheroids had proximal tubule characteristics. For SLC transporters, the 3D spheroid culture improved the protein expression of about 7% of the 139 transporter proteins detected and 2.3% of 4,800 proteins detected to about 5-fold that in human renal cortices. Furthermore, the protein expression levels of about 4800 proteins in 3D RPTEC spheroids (cultured for 12 days) were maintained over 20 days. Cisplatin and adefovir exhibited transporter-dependent ATP decreases in 3D RPTEC spheroids. These results indicate that the 3D RPTEC spheroid is a simple and robust in vitro experimental system for pharmacokinetic and toxicological evaluation in drug development.

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Expression data from Stx2-injected (i.p.) mouse kidneys

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Renal Proximal Tube Epithelial Cells at 24h and 1% oxygen

Project description:Aim of the study was to characterize the transcriptional response of human primary renal proximal tubule epithelial cells (RPTEC) to low oxygen stress.

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Transcription profiling by array of human renal proximal tubular cell cultures treated with nephrotoxins

Project description:This experiment is designed to investigate common transcriptional alterations in renal proximal tubular cell cultures due to nephrotoxin exposure.

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Tacrolimus TK173 RPTEC

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Project description:Effect of 4.2 micromolar Cyclosporine A on human renal proximal tubular cell line HK-2 over 48 hours

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