Evidence map›Paper›PMID 30524726›Full record

ArticleCancer & metabolism2018

p53-mediated adaptation to serine starvation is retained by a common tumour-derived mutant.

Timothy J Humpton, Andreas K Hock, Oliver D K Maddocks, Karen H Vousden

Open access · goldAbstract read
In one paragraph

Article in Cancer & metabolism, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
1.8field-weighted citation impact, top 11% 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

38 citing papers in PubMed, 59 citations in OpenAlex.

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  4. On the Edge of Benefit and Harm: Reactive Oxygen Species in Cancer.International journal of molecular sciences · 2026
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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

4 authors at 3 institutions in 1 country.

Timothy J Humpton *1CRUK Beatson Institute, Switchback Road, Glasgow, G61 1BD UK.
Andreas K Hock *1CRUK Beatson Institute, Switchback Road, Glasgow, G61 1BD UK.
Oliver D K Maddocks3Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1QH UK.
Karen H Vousden2Francis Crick Institute, 1 Midland Road, London, NW1 1AT UK.ORCID 0000-0002-7365-1766
Cancer Research UK Scotland Institute · GBThe Francis Crick Institute · GBUniversity of Glasgow · GB

Funding

Cancer Research UK 18274Cancer Research UK 19702European Research Council 322842Wellcome Trust FC001557
6 · The paper itself

Abstract

backgroundIn response to oncogenic stress, the tumour suppressor protein p53 can induce the elimination of cells through induction of cell death or senescence, helping to restrain malignant progression. Conversely, under nutrient stress, p53 can protect cells by supporting metabolic adaptation. Many cancers express mutant p53 proteins that have lost the cell-elimination properties of wild-type p53. However, a previous report showed that a tumour-derived mutant can retain the ability to support cells under glutamine starvation.

resultsWe show that a commonly occurring p53 mutant, R248W, retains wild-type ability to support survival under serine starvation. R248W, but not R175H, can engage p21 and MDM2, which both function to limit oxidative stress and facilitate the switch to de novo serine synthesis. In vivo, the growth of R248W-expressing tumours is resistant to dietary depletion of serine and glycine, correlating with an increased capacity to limit ROS compared to tumours expressing R175H. Human cancers expressing this p53 mutant show a worse outcome.

conclusionOur work shows that mutant p53s can selectively retain wild-type p53 functions that allow adaptation to serine starvation through the activation of antioxidant defence pathways. Tumours containing this p53 mutation are resistant to serine-limited conditions and less responsive to therapy.

Indexed as

AntioxidantMDM2p53Serine starvation

Identifiers

PMID30524726
PMCPMC6276204
OpenAlexW2901565715

What OpenQuestion holds

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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.