Evidence map›Paper›PMID 21325496›Full record

ArticleAmerican journal of physiology. Renal physiology2011

Cdk2-dependent phosphorylation of p21 regulates the role of Cdk2 in cisplatin cytotoxicity.

Rawad Hodeify, Adel Tarcsafalvi, Judit Megyesi, Robert L Safirstein, Peter M Price

Open access · greenAbstract 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 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

19 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. p21Cancers · 2024
    Article
  5. Article
  6. Review
  7. PFKFB3 mediates tubular cell death in cisplatin nephrotoxicity by activating CDK4.Translational research : the journal of laboratory and clinical medicine · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Observational
  15. Article
  16. Article
  17. 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

5 authors at 2 institutions in 1 country.

Rawad HodeifyDepartment of Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, 72205, USA.
Adel Tarcsafalvi
Judit Megyesi
Robert L Safirstein
Peter M Price
University of Arkansas for Medical Sciences · USCentral Arkansas Veterans Healthcare System · US

Funding

CYCLIN DEPENDENT KINASE INHIBITOR IN ACUTE RENAL FAILURER01DK054471 · NIDDK · UNIV OF ARKANSAS FOR MED SCIS · PI PRICE, PETER M. · 1998 to 2013
$2.3M
NIDDK NIH HHS R01 DK054471NIDDK NIH HHS R01-DK-54471
6 · The paper itself

Abstract

Cisplatin cytotoxicity is dependent on cyclin-dependent kinase 2 (Cdk2) activity in vivo and in vitro. We found that an 18-kDa protein identified by mass spectrometry as p21(WAF1/Cip1) was phosphorylated by Cdk2 starting 12 h after cisplatin exposure. The analysis showed it was phosphorylated at serine 78, a site not previously identified. The adenoviral transduction of p21 before cisplatin exposure protects from cytotoxicity by inhibiting Cdk2. Although cisplatin causes induction of endogenous p21, the protection is inefficient. We hypothesized that phosphorylation of p21 at serine 78 could affect its role as a Cdk inhibitor, and thereby lessen its ability to protect from cisplatin cytotoxicity. To investigate the effect of serine 78 phosphorylation on p21 activity, we replaced serine 78 with aspartic acid, creating the phosphomimic p21(S78D). Mutant p21(S78D) was an inefficient inhibitor of Cdk2 and was inefficient at protecting TKPTS cells from cisplatin-induced cell death. We conclude that phosphorylation of p21 by Cdk2 limits the effectiveness of p21 to inhibit Cdk2, which is the mechanism for continued cisplatin cytotoxicity even after the induction of a protective protein.

Indexed as

Acute Kidney InjuryAdenoviridaeAmino Acid SequenceAnimalsAntineoplastic AgentsCisplatinCyclin ACyclin-Dependent Kinase 2Cyclin-Dependent Kinase Inhibitor p21Disease Models, AnimalGenetic VectorsHEK293 CellsHumansKidney Tubules, ProximalMiceMice, 129 StrainAntineoplastic AgentsCDK2 protein, humanCdk2 protein, mouseCdkn1a protein, mouseCisplatinCyclin ACyclin-Dependent Kinase 2Cyclin-Dependent Kinase Inhibitor p21Recombinant Fusion ProteinsSerine

Identifiers

PMID21325496
PMCPMC3094048
OpenAlexW1994325876

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.