Evidence map›Paper›PMID 21613416›Full record

ArticleAmerican journal of physiology. Renal physiology2011

Inhibition of the protein kinase MK-2 protects podocytes from nephrotic syndrome-related injury.

Ruma Pengal, Adam J Guess, Shipra Agrawal, Joshua Manley, Richard F Ransom, Robert J Mourey, Rainer Benndorf, William E Smoyer

Abstract read
In one paragraph

Article in American journal of physiology. Renal physiology, 2011. 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
1.0field-weighted citation impact, top 25% 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, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Semaphorin3A-Inhibitor Ameliorates Doxorubicin-Induced Podocyte Injury.International journal of molecular sciences · 2020
    Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. A Podocyte-Based Automated Screening Assay Identifies Protective Small Molecules.Journal of the American Society of Nephrology : JASN · 2015
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
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

8 authors at 3 institutions in 1 country.

Ruma PengalCenter for Clinical and Translational Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43205, USA.
Adam J Guess
Shipra Agrawal
Joshua Manley
Richard F Ransom
Robert J Mourey
Rainer Benndorf
William E Smoyer
Nationwide Children's Hospital · USThe Ohio State University · USPfizer (United States) · US

Funding

Expression Genetics in Drug TherapyU01GM092655 · NIGMS · OHIO STATE UNIVERSITY · PI SADEE, WOLFGANG · 2010 to 2014
$8.6M
Mechanisms of Glucocorticoid Action in PodocytesR01DK075533 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RANSOM, RICHARD FREDERICK · 2007 to 2011
$1.3M
Function of Hsp27 and its Binding Proteins in the Glomerular PodocyteR01DK077283 · NIDDK · RESEARCH INST NATIONWIDE CHILDREN'S HOSP · PI SMOYER, WILLIAM E · 2007 to 2010
$691k
Regulation of Podocyte Structure by the Binding ProteinR56DK055602 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SMOYER, WILLIAM E. · 2005 to 2006
$227k
NIDDK NIH HHS R01 DK075533NIDDK NIH HHS R01 DK077283NIDDK NIH HHS R56 DK55602NIGMS NIH HHS U01 GM092655
6 · The paper itself

Abstract

While mitogen-activated protein kinase (MAPK) activation has been implicated in the pathogenesis of various glomerular diseases, including nephrotic syndrome (NS), its specific role in podocyte injury is not known. We hypothesized that MK-2, a downstream substrate of p38 MAPK, mediates the adverse effects of this pathway and that inhibition of MK-2 would protect podocytes from NS-related injury. Using cultured podocytes, we analyzed 1) the roles of MK-2 and p38 MAPK in puromycin aminonucleoside (PAN)-induced podocyte injury; 2) the ability of specific MK-2 and p38 MAPK inhibitors to protect podocytes against injury; 3) the role of serum albumin, known to induce podocyte injury, in activating p38 MAPK/MK-2 signaling; and 4) the role of p38 MAPK/MK-2 signaling in the expression of Cox-2, an enzyme associated with podocyte injury. Treatment with protein kinase inhibitors specific for both MK-2 (C23, a pyrrolopyridine-type compound) or p38 MAPK (SB203580) reduced PAN-induced podocyte injury and actin cytoskeletal disruption. Both inhibitors reduced baseline podocyte p38 MAPK/MK-2 signaling, as measured by the degree of phosphorylation of HSPB1, a downstream substrate of MK-2, but exhibited disparate effects on upstream signaling. Serum albumin activated p38 MAPK/MK-2 signaling and induced Cox-2 expression, and these responses were blocked by both inhibitors. Given the critical importance of podocyte injury to both NS and other progressive glomerular diseases, these data suggest an important role for p38 MAPK/MK-2 signaling in podocyte injury and identify MK-2 inhibition as a promising potential therapeutic strategy to protect podocytes in various glomerular diseases.

Indexed as

AnimalsCell LineDisease Models, AnimalHeat-Shock ProteinsImidazolesIntracellular Signaling Peptides and ProteinsMAP-Kinase-Activated Kinase 2MiceMolecular ChaperonesNeoplasm ProteinsNephrotic Syndromep38 Mitogen-Activated Protein KinasesPodocytesProtein Kinase InhibitorsProtein Serine-Threonine KinasesPuromycin AminonucleosideHeat-Shock ProteinsHsbp1 protein, mouseImidazolesIntracellular Signaling Peptides and ProteinsMAP-Kinase-Activated Kinase 2Molecular ChaperonesNeoplasm Proteinsp38 Mitogen-Activated Protein KinasesProtein Kinase InhibitorsProtein Serine-Threonine KinasesPuromycin AminonucleosidePyridinesSB 203580Serum Albumin

Identifiers

PMID21613416
PMCPMC3174552
OpenAlexW2154745409

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.