Evidence map›Paper›PMID 29294050›Full record

ArticleNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association2018

Na/K-ATPase/src complex mediates regulation of CD40 in renal parenchyma.

Jeffrey X Xie, Shungang Zhang, Xiaoyu Cui, Jue Zhang, Hui Yu, Fatimah K Khalaf, Deepak Malhotra, David J Kennedy, Joseph I Shapiro, Jiang Tian and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

16 citing papers in PubMed, 15 citations in OpenAlex.

  1. Exploring the Mechanism of NabioRxiv : the preprint server for biology · 2026
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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

11 authors at 3 institutions in 2 countries.

Jeffrey X XieDepartment of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
Shungang ZhangDepartment of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
Xiaoyu CuiMarshall Institute for Interdisciplinary Research, Marshall University, Huntington, WV, USA.
Jue ZhangDepartment of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Hui YuDepartment of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Fatimah K KhalafDepartment of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
Deepak MalhotraDepartment of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
David J KennedyDepartment of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
Joseph I ShapiroMarshall Institute for Interdisciplinary Research, Marshall University, Huntington, WV, USA.
Jiang TianDepartment of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
Steven T HallerDepartment of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
University of Toledo · USMarshall University · USUnion Hospital · CN

Funding

Counter regulatory mechanisms of cardiotonic steroids in cardio-renal syndromeR01HL137004 · NHLBI · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI KENNEDY, DAVID JOSEPH · 2017 to 2021
$1.9M
Na/K-ATPase Reduction in Renal Disease-Related Cardiac DysfunctionR01HL105649 · NHLBI · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI TIAN, JIANG · 2012 to 2016
$1.8M
NHLBI NIH HHS R01 HL105649NHLBI NIH HHS R01 HL137004
6 · The paper itself

Abstract

Background: Recent studies have highlighted a critical role for CD40 in the pathogenesis of renal injury and fibrosis. However, little is currently understood about the regulation of CD40 in this setting. Methods: We use novel Na/K-ATPase cell lines and inhibitors in order to demonstrate the regulatory function of Na/K-ATPase with regards to CD40 expression and function. We utilize 5/6 partial nephrectomy as well as direct infusion of a Na/K-ATPase ligand to demonstrate this mechanism exists in vivo. Results: We demonstrate that knockdown of the α1 isoform of Na/K-ATPase causes a reduction in CD40 while rescue of the α1 but not the α2 isoform restores CD40 expression in renal epithelial cells. Second, because the major functional difference between α1 and α2 is the ability of α1 to form a functional signaling complex with Src, we examined whether the Na/K-ATPase/Src complex is important for CD40 expression. We show that a gain-of-Src binding α2 mutant restores CD40 expression while loss-of-Src binding α1 reduces CD40 expression. Furthermore, loss of a functional Na/K-ATPase/Src complex also disrupts CD40 signaling. Importantly, we show that use of a specific Na/K-ATPase/Src complex antagonist, pNaKtide, can attenuate cardiotonic steroid (CTS)-induced induction of CD40 expression in vitro. Conclusions: Because the Na/K-ATPase/Src complex is also a key player in the pathogenesis of renal injury and fibrosis, our new findings suggest that Na/K-ATPase and CD40 may comprise a pro-fibrotic feed-forward loop in the kidney and that pharmacological inhibition of this loop may be useful in the treatment of renal fibrosis.

Indexed as

Gene Expression RegulationAnimalsCell LineDisease Models, AnimalImmunoblottingKidneyMaleRabbitsRatsRats, Sprague-DawleyReal-Time Polymerase Chain ReactionRenal Insufficiency, ChronicRNASignal TransductionSodium-Potassium-Exchanging ATPaseRNASodium-Potassium-Exchanging ATPase

Identifiers

PMID29294050
PMCPMC6031043
OpenAlexW2778363815

What OpenQuestion holds

Textmetadata
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.