Evidence map›Paper›PMID 28335665›Full record

ArticleRenal failure2017

Calcium oxalate crystals induces tight junction disruption in distal renal tubular epithelial cells by activating ROS/Akt/p38 MAPK signaling pathway.

Lei Yu, Xiuguo Gan, Xukun Liu, Ruihua An

Open access · goldAbstract read
In one paragraph

Article in Renal failure, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Metabolic changes in kidney stone disease.Frontiers in immunology · 2023
    Pooled it
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  19. Article
  20. Lipoxin alleviates oxidative stress: a state-of-the-art review.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2022
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Lei Yua Department of Urology , the First Affiliated Hospital of Harbin Medical University , Harbin , Heilongjiang Province , P.R. China.
Xiuguo Gana Department of Urology , the First Affiliated Hospital of Harbin Medical University , Harbin , Heilongjiang Province , P.R. China.
Xukun Liub Department of General Surgery , the People's Hospital of Jixi , Jixi , Heilongjiang Province , P.R. China.
Ruihua Ana Department of Urology , the First Affiliated Hospital of Harbin Medical University , Harbin , Heilongjiang Province , P.R. China.
First Affiliated Hospital of Harbin Medical University · CNHarbin Medical University · CNHeilongjiang University of Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tight junction plays important roles in regulating paracellular transports and maintaining cell polarity. Calcium oxalate monohydrate (COM) crystals, the major crystalline composition of kidney stones, have been demonstrated to be able to cause tight junction disruption to accelerate renal cell injury. However, the cellular signaling involved in COM crystal-induced tight junction disruption remains largely to be investigated. In the present study, we proved that COM crystals induced tight junction disruption by activating ROS/Akt/p38 MAPK pathway. Treating Madin-Darby canine kidney (MDCK) cells with COM crystals induced a substantial increasing of ROS generation and activation of Akt that triggered subsequential activation of ASK1 and p38 mitogen-activated protein kinase (MAPK). Western blot revealed a significantly decreased expression of ZO-1 and occludin, two important structural proteins of tight junction. Besides, redistribution and dissociation of ZO-1 were observed by COM crystals treatment. Inhibition of ROS by N-acetyl-l-cysteine (NAC) attenuated the activation of Akt, ASK1, p38 MAPK, and down-regulation of ZO-1 and occludin. The redistribution and dissociation of ZO-1 were also alleviated by NAC treatment. These results indicated that ROS were involved in the regulation of tight junction disruption induced by COM crystals. In addition, the down-regulation of ZO-1 and occludin, the phosphorylation of ASK1 and p38 MAPK were also attenuated by MK-2206, an inhibitor of Akt kinase, implying Akt was involved in the disruption of tight junction upstream of p38 MAPK. Thus, these results suggested that ROS-Akt-p38 MAPK signaling pathway was activated in COM crystal-induced disruption of tight junction in MDCK cells.

Indexed as

Signal TransductionAcetylcysteineAnimalsApoptosisCalcium OxalateCells, CulturedDogsDown-RegulationEpithelial CellsHeterocyclic Compounds, 3-RingHumansKidney CalculiKidney TubulesMadin Darby Canine Kidney CellsNephrolithiasisOccludinAcetylcysteineCalcium OxalateHeterocyclic Compounds, 3-RingMK 2206Occludinp38 Mitogen-Activated Protein KinasesProto-Oncogene Proteins c-aktReactive Oxygen SpeciesZonula Occludens-1 ProteinAktCalcium oxalate crystalsp38 MAPKROStight junctionZO-1

Identifiers

PMID28335665
PMCPMC6014313
OpenAlexW2599349803

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.