Evidence map›Paper›PMID 22427670›Full record

ArticleThe Journal of biological chemistry2012

The chaperone-assisted E3 ligase C terminus of Hsc70-interacting protein (CHIP) targets PTEN for proteasomal degradation.

Syed Feroj Ahmed, Satamita Deb, Indranil Paul, Anirban Chatterjee, Tapashi Mandal, Uttara Chatterjee, Mrinal K Ghosh

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed, 1 pooled it
5.6field-weighted citation impact, top 3% 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

94 citing papers in PubMed, 1 synthesis or guideline pooled it, 150 citations in OpenAlex.

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  18. STUB1-SMYD2 Axis Regulates Drug Resistance in Glioma cells.Journal of molecular neuroscience : MN · 2022
    Article
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34 more citing papers are in PubMed but not listed here.

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

7 authors at 3 institutions in 1 country.

Syed Feroj AhmedSignal Tranduction in Cancer and Stem Cells Laboratory, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), 4 Raja S C Mullick Road, Kolkata, 700032, West Bengal, India.
Satamita Deb
Indranil Paul
Anirban Chatterjee
Tapashi Mandal
Uttara Chatterjee
Mrinal K Ghosh
Council of Scientific and Industrial Research · INIndian Institute of Chemical Biology · INInstitute of Post Graduate Medical Education and Research · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The tumor suppressor, PTEN is key to the regulation of diverse cellular processes, making it a prime candidate to be tightly regulated. The PTEN level is controlled in a major way by E3 ligase-mediated degradation through the Ubiquitin-Proteasome System (UPS). Nedd 4-1, XIAP, and WWP2 have been shown to maintain PTEN turnover. Here, we report that CHIP, the chaperone-associated E3 ligase, induces ubiquitination and regulates the proteasomal turnover of PTEN. It was apparent from our findings that PTEN transiently associates with the molecular chaperones and thereby gets diverted to the degradation pathway through its interaction with CHIP. The TPR domain of CHIP and parts of the N-terminal domain of PTEN are required for their interaction. Overexpression of CHIP leads to elevated ubiquitination and a shortened half-life of endogenous PTEN. On the other hand, depletion of endogenous CHIP stabilizes PTEN. CHIP is also shown to regulate PTEN-dependent transcription presumably through its down-regulation. PTEN shared an inverse correlation with CHIP in human prostate cancer patient samples, thereby triggering the prospects of a more complex mode of PTEN regulation in cancer.

Indexed as

Cell Line, TumorGreen Fluorescent ProteinsHEK293 CellsHeLa CellsHSP70 Heat-Shock ProteinsHSP90 Heat-Shock ProteinsHumansImmunoprecipitationMicroscopy, FluorescenceMolecular ChaperonesMutationProteasome Endopeptidase ComplexProtein BindingProteolysisPTEN PhosphohydrolaseRNA InterferenceGreen Fluorescent ProteinsHSP70 Heat-Shock ProteinsHSP90 Heat-Shock ProteinsMolecular ChaperonesProteasome Endopeptidase ComplexPTEN PhosphohydrolaseSTUB1 protein, humanUbiquitin-Protein Ligases

Identifiers

PMID22427670
PMCPMC3346122
OpenAlexW1965988311

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.