Evidence map›Paper›PMID 25852733›Full record

ReviewNephron extra

Effects of Tumor Necrosis Factor-α on Podocyte Expression of Monocyte Chemoattractant Protein-1 and in Diabetic Nephropathy.

Choon Hee Chung, Jingyi Fan, Eun Young Lee, Jeong Suk Kang, Seung Joo Lee, Petr E Pyagay, Charbel C Khoury, Tet-Kin Yeo, Mark F Khayat, Amy Wang and 1 more

Open access · goldAbstract readReview
In one paragraph

Review in Nephron extra. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
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  15. Journal of diabetes and metabolic disorders · 2021
    Article
  16. Frontiers in immunology · 2021
    Article
  17. Article
  18. Review
  19. Article
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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 3 countries.

Choon Hee ChungDivision of Nephrology/Hypertension, Northwestern University, Chicago, Ill., USA ; Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
Jingyi FanDivision of Nephrology/Hypertension, Northwestern University, Chicago, Ill., USA ; Pediatric Department, Wuhan University School of Medicine, Zhongnan Affiliated Hospital, Wuhan, P.R. China.
Eun Young LeeDivision of Nephrology/Hypertension, Northwestern University, Chicago, Ill., USA ; Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea.
Jeong Suk KangDepartment of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea.
Seung Joo LeeDepartment of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea.
Petr E PyagayDivision of Nephrology/Hypertension, Northwestern University, Chicago, Ill., USA.
Charbel C KhouryDivision of Nephrology/Hypertension, Northwestern University, Chicago, Ill., USA.
Tet-Kin YeoDivision of Nephrology/Hypertension, Northwestern University, Chicago, Ill., USA.
Mark F KhayatDivision of Nephrology/Hypertension, Northwestern University, Chicago, Ill., USA.
Amy WangDivision of Nephrology/Hypertension, Northwestern University, Chicago, Ill., USA.
Sheldon ChenDivision of Nephrology/Hypertension, Northwestern University, Chicago, Ill., USA ; Section of Nephrology, MD Anderson Cancer Center, Houston, Tex., USA.
Northwestern University · USSoonchunhyang University · KRWuhan University · CN

Funding

TUBULOINTERSTITIAL KIDNEY CELLS &REPONSE TO GLUCOSER01DK044513 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI CHEN, SHELDON · 1992 to 2009
$2.0M
NIDDK NIH HHS R01 DK044513
6 · The paper itself

Abstract

BACKGROUND/

aimsTumor necrosis factor (TNF)-α is believed to play a role in diabetic kidney disease. This study explores the specific effects of TNF-α with regard to nephropathy-relevant parameters in the podocyte.

methodsCultured mouse podocytes were treated with recombinant TNF-α and assayed for production of monocyte chemoattractant protein-1 (MCP-1) by enzyme-linked immunosorbent assay (ELISA). TNF-α signaling of MCP-1 was elucidated by antibodies against TNF receptor (TNFR) 1 or TNFR2 or inhibitors of nuclear factor-kappaB (NF-κB), phosphatidylinositol 3-kinase (PI3K) or Akt. In vivo studies were done on male db/m and type 2 diabetic db/db mice. Levels of TNF-α and MCP-1 were measured by RT-qPCR and ELISA in the urine, kidney and plasma of the two cohorts and correlated with albuminuria.

resultsPodocytes treated with TNF-α showed a robust increase (∼900%) in the secretion of MCP-1, induced in a dose- and time-dependent manner. Signaling of MCP-1 expression occurred through TNFR2, which was inducible by TNF-α ligand, but did not depend on TNFR1. TNF-α then proceeded via the NF-κB and the PI3K/Akt systems, based on the effectiveness of the inhibitors of those pathways. For in vivo relevance to diabetic kidney disease, TNF-α and MCP-1 levels were found to be elevated in the urine of db/db mice but not in the plasma.

conclusionTNF-α potently stimulates podocytes to produce MCP-1, utilizing the TNFR2 receptor and the NF-κB and PI3K/Akt pathways. Both TNF-α and MCP-1 levels were increased in the urine of diabetic db/db mice, correlating with the severity of diabetic albuminuria.

Indexed as

Akt or protein kinase BAlbuminuriaDiabetic rodent modelNuclear factor-kappaBPhosphatidylinositol 3-kinaseTNF receptor 2

Identifiers

PMID25852733
PMCPMC4369122
OpenAlexW1985081764

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.