Evidence map›Paper›PMID 40180899›Full record

ArticleCell death discovery2025

Low extracellular pH protects cancer cells from ammonia toxicity.

Maria Dravecka, Ingvild Mikkola, Terje Johansen, Ole Morten Seternes, Jakob Mejlvang

Abstract read
In one paragraph

Article in Cell death discovery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Article
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  8. Selective Iridium-Catalyzed Reductive Amination Inside Living Cells.Journal of the American Chemical Society · 2025
    Article
  9. 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

5 authors.

Maria DraveckaCell Signalling and Targeted therapy, Department of Pharmacy, UiT The Arctic University of Norway, Tromsø, Norway.
Ingvild MikkolaCell Signalling and Targeted therapy, Department of Pharmacy, UiT The Arctic University of Norway, Tromsø, Norway.
Terje JohansenAutophagy Research Group, Department of Medical Biology, UiT The Arctic University of Norway, Tromsø, Norway.ORCID http://orcid.org/0000-0003-1451-9578
Ole Morten SeternesCell Signalling and Targeted therapy, Department of Pharmacy, UiT The Arctic University of Norway, Tromsø, Norway.
Jakob MejlvangCell Signalling and Targeted therapy, Department of Pharmacy, UiT The Arctic University of Norway, Tromsø, Norway. Jakob.mejlvang@uit.no.ORCID http://orcid.org/0000-0002-7719-4857

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ammonia is a natural waste product of cellular metabolism which, through its lysosomotropic ability, can have detrimental effects on various cellular functions. Increased levels of ammonia were recently detected in the interstitial fluid of various tumours, substantiating that high ammonia concentrations are a pathophysiological condition in the tumour microenvironment, alongside hypoxia and acidosis. Since little is known about how cancer cells respond to elevated levels of ammonia in the tumour microenvironment, we investigated how a panel of cancer cell lines derived from solid tumours behaved when exposed to increasing concentrations of ammonia. We found that ammonia represses cell growth, induces genome instability, and inhibits lysosome-mediated proteolysis in a dose-dependent manner. Unexpectedly, we also found that small fluctuations in the pH of the extracellular environment, had a significant impact on the cytotoxic effects of ammonia. In summary, our data show that the balance of pH and ammonia within the interstitial fluids of cancerous tumours significantly impacts the behaviour and fate of cells residing in the tumour microenvironment.

Identifiers

PMID40180899
PMCPMC11968834

What Socratic 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 Socratic graph.