Evidence map›Paper›PMID 28617439›Full record

ArticleCell death & disease2017

Cdc20 directs proteasome-mediated degradation of the tumor suppressor SMAR1 in higher grades of cancer through the anaphase promoting complex.

Debasish Paul, Suvankar Ghorai, U S Dinesh, Praveenkumar Shetty, Samit Chattopadhyay, Manas Kumar Santra

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.3field-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

35 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
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  5. Article
  6. CDC20: a novel therapeutic target in cancer.American journal of translational research · 2023
    Review
  7. Article
  8. Annals of translational medicine · 2022
    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

6 authors at 2 institutions in 1 country.

Debasish PaulNational Centre for Cell Science, Pune, Maharashtra, India.
Suvankar GhoraiNational Centre for Cell Science, Pune, Maharashtra, India.
U S DineshDepartment of Pathology, SDM College of Medical Sciences &Hospital, Dharwad, Karnataka, India.
Praveenkumar ShettyDepartment of Biochemistry/Central research laboratory, SDM College of Medical Sciences &Hospital, Dharwad, Karnataka, India.
Samit ChattopadhyayNational Centre for Cell Science, Pune, Maharashtra, India.
Manas Kumar SantraNational Centre for Cell Science, Pune, Maharashtra, India.
National Centre for Cell Science · INSDM College of Medical Science and Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Tumor suppressor SMAR1 (scaffold matrix attachment region binding protein 1) has a crucial role in maintaining genomic stability, cell cycle progression and apoptosis.Our previous finding showed that it is highly suppressed in higher grade of cancer. However, the underlying mechanism of this suppression was not well understood. In this study, we show that SMAR1 expression levels are controlled at the proteasomal level by five RING finger E3 ubiquitin ligases including, Cdc20, a substrate receptor of ubiquitin ligase APC/C complex. We found that Cdc20 binds and promotes proteasomal degradation of SMAR1 in a D-box motif dependent manner. Further, our results demonstrated that Cdc20 promotes proteasomal degradation of SMAR1 through K48-linked specific polyubiquitylation, and that short hairpin RNA mediated inactivation of Cdc20 leads to significant stabilization of SMAR1. These findings suggest that Cdc20 is responsible for maintaining the cellular levels of SMAR1. However, since Cdc20 fails to target SMAR1 upon exposure to genotoxic stresses, SMAR1 helps to maintain genomic stability under these conditions through its DNA damage repair activity. Interestingly, Cdc20-mediated degradation of SMAR1 promotes cell migration and invasion.The reciprocal relationship of the duo is evident in breast cancer cell lines as well as in patient samples, suggesting that Cdc20 functions as an important negative regulator of SMAR1 in higher grades of cancer. Our study reveals for the first time, the molecular mechanism associated with lower levels of expression of the important tumor suppressor SMAR1 in higher grades of breast cancer.

Indexed as

Anaphase-Promoting Complex-CyclosomeApoptosisBreast NeoplasmsCdc20 ProteinsCell CycleCell Cycle ProteinsCell Line, TumorCell MovementCell NucleusCytoplasmDNA-Binding ProteinsDNA DamageDNA RepairFemaleHEK293 CellsHumansAnaphase-Promoting Complex-CyclosomeBANP protein, humanCDC20 protein, humanCdc20 ProteinsCell Cycle ProteinsDNA-Binding ProteinsNuclear ProteinsProteasome Endopeptidase ComplexRNA, Small Interfering

Identifiers

PMID28617439
PMCPMC5520925
OpenAlexW2625173190

What OpenQuestion holds

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LicenceCC BY
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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.