Evidence map›Paper›PMID 27050370›Full record

ArticleOncotarget2016

APE1 polymorphic variants cause persistent genomic stress and affect cancer cell proliferation.

Lisa Lirussi, Giulia Antoniali, Chiara D'Ambrosio, Andrea Scaloni, Hilde Nilsen, Gianluca Tell

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 29 citations in OpenAlex.

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  5. A Novel HypomorphicAntioxidants & redox signaling · 2023
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  19. Base excision repair of oxidative DNA damage: from mechanism to disease.Frontiers in bioscience (Landmark edition) · 2017
    Review
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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 3 institutions in 2 countries.

Lisa LirussiLaboratory of Molecular Biology and DNA Repair, Department of Medical and Biological Sciences, University of Udine, 33100 Udine, Italy.
Giulia AntonialiLaboratory of Molecular Biology and DNA Repair, Department of Medical and Biological Sciences, University of Udine, 33100 Udine, Italy.
Chiara D'AmbrosioProteomics and Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80147 Naples, Italy.
Andrea ScaloniProteomics and Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80147 Naples, Italy.
Hilde NilsenDepartment of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1474 Nordbyhagen, Norway.
Gianluca TellLaboratory of Molecular Biology and DNA Repair, Department of Medical and Biological Sciences, University of Udine, 33100 Udine, Italy.
Akershus University Hospital · NOIstituto per il Sistema Produzione Animale in Ambiente Mediterraneo · ITUniversity of Udine · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Apurinic/apyrimidinic endonuclease 1 (APE1) is the main mammalian AP-endonuclease responsible for the repair of endogenous DNA damage through the base excision repair (BER) pathway. Molecular epidemiological studies have identified several genetic variants associated with human diseases, but a well-defined functional connection between mutations in APE1 and disease development is lacking. In order to understand the biological consequences of APE1 genetic mutations, we examined the molecular and cellular consequences of the selective expression of four non-synonymous APE1 variants (L104R, R237C, D148E and D283G) in human cells. We found that D283G, L104R and R237C variants have reduced endonuclease activity and impaired ability to associate with XRCC1 and DNA polymerase β, which are enzymes acting downstream of APE1 in the BER pathway. Complementation experiments performed in cells, where endogenous APE1 had been silenced by shRNA, showed that the expression of these variants resulted in increased phosphorylation of histone H2Ax and augmented levels of poly(ADP-ribosyl)ated (PAR) proteins. Persistent activation of DNA damage response markers was accompanied by growth defects likely due to combined apoptotic and autophagic processes. These phenotypes were observed in the absence of exogenous stressors, suggesting that chronic replication stress elicited by the BER defect may lead to a chronic activation of the DNA damage response. Hence, our data reinforce the concept that non-synonymous APE1 variants present in the human population may act as cancer susceptibility alleles.

Indexed as

Cell ProliferationDNA-(Apurinic or Apyrimidinic Site) LyaseDNA RepairGenetic Predisposition to DiseaseGenotypeHeLa CellsHumansNeoplasmsPolymorphism, Single NucleotideAPEX1 protein, humanDNA-(Apurinic or Apyrimidinic Site) LyaseAPE1/Ref-1genetic variantsgenotoxic damagereplication stress

Identifiers

PMID27050370
PMCPMC5041981
OpenAlexW2318310371

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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.