Evidence map›Paper›PMID 27611649›Full record

ArticleScientific reports2016

Polysialic acid sustains cancer cell survival and migratory capacity in a hypoxic environment.

Sara M Elkashef, Simon J Allison, Maria Sadiq, Haneen A Basheer, Goreti Ribeiro Morais, Paul M Loadman, Klaus Pors, Robert A Falconer

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

27 citing papers in PubMed, 62 citations in OpenAlex.

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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

8 authors at 2 institutions in 1 country.

Sara M ElkashefInstitute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, West Yorkshire BD7 1DP, U.K.
Simon J AllisonDepartment of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DH, U.K.
Maria SadiqInstitute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, West Yorkshire BD7 1DP, U.K.
Haneen A BasheerInstitute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, West Yorkshire BD7 1DP, U.K.
Goreti Ribeiro MoraisInstitute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, West Yorkshire BD7 1DP, U.K.
Paul M LoadmanInstitute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, West Yorkshire BD7 1DP, U.K.
Klaus PorsInstitute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, West Yorkshire BD7 1DP, U.K.
Robert A FalconerInstitute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, West Yorkshire BD7 1DP, U.K.
University of Bradford · GBUniversity of Huddersfield · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

Polysialic acid (polySia) is a unique carbohydrate polymer expressed on the surface of NCAM (neuronal cell adhesion molecule) in a number of cancers where it modulates cell-cell and cell-matrix adhesion, migration, invasion and metastasis and is strongly associated with poor clinical prognosis. We have carried out the first investigation into the effect of polySia expression on the behaviour of cancer cells in hypoxia, a key source of chemoresistance in tumours. The role of polysialylation and associated tumour cell migration and cell adhesion were studied in hypoxia, along with effects on cell survival and the potential role of HIF-1. Our findings provide the first evidence that polySia expression sustains migratory capacity and is associated with tumour cell survival in hypoxia. Initial mechanistic studies indicate a potential role for HIF-1 in sustaining polySia-mediated migratory capacity, but not cell survival. These data add to the growing body of evidence pointing to a crucial role for the polysialyltransferases (polySTs) in neuroendocrine tumour progression and provide the first evidence to suggest that polySia is associated with an aggressive phenotype in tumour hypoxia. These results have significant potential implications for polyST inhibition as an anti-metastatic therapeutic strategy and for targeting hypoxic cancer cells.

Indexed as

Cell MovementCell SurvivalCell Line, TumorEpithelial CellsHumansHypoxiaNeoplasmsNeuronsSialic Acidspolysialic acidSialic Acids

Identifiers

PMID27611649
PMCPMC5017143
OpenAlexW2514576317

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.