Evidence map›Paper›PMID 20720012›Full record

ArticleThe Journal of biological chemistry2010

A 24-residue peptide (p5), derived from p35, the Cdk5 neuronal activator, specifically inhibits Cdk5-p25 hyperactivity and tau hyperphosphorylation.

Ya-Li Zheng, Niranjana D Amin, Ya-Fang Hu, Parvathi Rudrabhatla, Varsha Shukla, Jyotshnabala Kanungo, Sashi Kesavapany, Philip Grant, Wayne Albers, Harish C Pant

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
–field-weighted citation impact
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

44 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. A Cdk5-derived peptide inhibits Cdk5/p25 activity and improves neurodegenerative phenotypes.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  5. Article
  6. Three decades of Cdk5.Journal of biomedical science · 2021
    Review
  7. Article
  8. Article
  9. Therapeutic effects of TP5, a Cdk5/p25 inhibitor, inCurrent research in neurobiology · 2021
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. 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

10 authors.

Ya-Li ZhengLaboratory of Neurochemistry, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892, USA.
Niranjana D Amin
Ya-Fang Hu
Parvathi Rudrabhatla
Varsha Shukla
Jyotshnabala Kanungo
Sashi Kesavapany
Philip Grant
Wayne Albers
Harish C Pant

Funding

Cyclin-dependent kinase 5 (Cdk5 physiology and pathology)ZIANS003104 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI PANT, HARISH C · 2009 to 2016
$9.6M
Intramural NIH HHS
6 · The paper itself

Abstract

The activity of Cdk5-p35 is tightly regulated in the developing and mature nervous system. Stress-induced cleavage of the activator p35 to p25 and a p10 N-terminal domain induces deregulated Cdk5 hyperactivity and perikaryal aggregations of hyperphosphorylated Tau and neurofilaments, pathogenic hallmarks in neurodegenerative diseases, such as Alzheimer disease and amyotrophic lateral sclerosis, respectively. Previously, we identified a 125-residue truncated fragment of p35 called CIP that effectively and specifically inhibited Cdk5-p25 activity and Tau hyperphosphorylation induced by Aβ peptides in vitro, in HEK293 cells, and in neuronal cells. Although these results offer a possible therapeutic approach to those neurodegenerative diseases assumed to derive from Cdk5-p25 hyperactivity and/or Aβ induced pathology, CIP is too large for successful therapeutic regimens. To identify a smaller, more effective peptide, in this study we prepared a 24-residue peptide, p5, spanning CIP residues Lys(245)-Ala(277). p5 more effectively inhibited Cdk5-p25 activity than did CIP in vitro. In neuron cells, p5 inhibited deregulated Cdk5-p25 activity but had no effect on the activity of endogenous Cdk5-p35 or on any related endogenous cyclin-dependent kinases in HEK293 cells. Specificity of p5 inhibition in cortical neurons may depend on the p10 domain in p35, which is absent in p25. Furthermore, we have demonstrated that p5 reduced Aβ(1-42)-induced Tau hyperphosphorylation and apoptosis in cortical neurons. These results suggest that p5 peptide may be a unique and useful candidate for therapeutic studies of certain neurodegenerative diseases.

Indexed as

Adaptor Proteins, Signal TransducingAnimalsApoptosisCell Cycle ProteinsCyclin-Dependent Kinase 5HumansNerve Tissue ProteinsNeuronsPeptide FragmentsPhosphorylationPhosphotransferasesProtein Structure, TertiaryRatstau ProteinsTubulinAdaptor Proteins, Signal TransducingCDCA5 protein, humanCDK5 protein, humanCdk5 protein, ratCdk5r1 protein, ratCell Cycle ProteinsCyclin-Dependent Kinase 5Nerve Tissue Proteinsp5 protein, humanp5 protein, ratPeptide FragmentsPhosphotransferasestau ProteinsTPPP protein, humanTubulin

Identifiers

PMID20720012
PMCPMC2962518

What OpenQuestion holds

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Registered trials

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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.