Evidence map›Paper›PMID 33931924›Full record

ArticleCancer science2021

Methylation of NRN1 is a novel synthetic lethal marker of PI3K-Akt-mTOR and ATR inhibitors in esophageal cancer.

Wushuang Du, Aiai Gao, James G Herman, Lidong Wang, Lirong Zhang, Shunchang Jiao, Mingzhou Guo

Open access · goldAbstract read
In one paragraph

Article in Cancer science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.1field-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

25 citing papers in PubMed, 32 citations in OpenAlex.

  1. Epigenetic silencingCancer biology & therapy · 2026
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  4. Exploration of targeted anti-tumor therapy · 2026
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  8. Review
  9. Epigenetic silencingCancer biology & therapy · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Methylation ofJournal of translational internal medicine · 2024
    Article
  14. Article
  15. Review
  16. Epigenetic silencing ofEpigenomics · 2024
    Article
  17. Review
  18. Article
  19. Article
  20. 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

7 authors at 3 institutions in 2 countries.

Wushuang DuDepartment of Oncology, Chinese PLA General Hospital, Beijing, China.
Aiai GaoDepartment of Gastroenterology & Hepatology, Chinese PLA General Hospital, Beijing, China.
James G HermanUPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Lidong WangHenan Key Laboratory for Esophageal Cancer Research, Zhengzhou University, Zhengzhou, China.
Lirong ZhangHenan Key Laboratory for Esophageal Cancer Research, Zhengzhou University, Zhengzhou, China.
Shunchang JiaoDepartment of Oncology, Chinese PLA General Hospital, Beijing, China.
Mingzhou GuoDepartment of Gastroenterology & Hepatology, Chinese PLA General Hospital, Beijing, China.ORCID https://orcid.org/0000-0002-9445-9984
Chinese PLA General Hospital · CNZhengzhou University · CNUPMC Hillman Cancer Center · US

Funding

Beijing Science Foundation of China BJSFC No. 7171008National Key Research and Development Program of China 2018YFA0208902National Key Research and Development Program of China 2020YFC2002705National Key Scientific Instrument Special Program of China 2011YQ03013405National Science Foundation of China 81672138National Science Foundation of China U1604281
6 · The paper itself

Abstract

Wnt, PI3K-Akt-mTOR, and NF-κB pathways were reported to be involved in DNA damage repair (DDR). DDR-deficient cancers become critically dependent on backup DNA repair pathways. Neuritin 1 (NRN1) is reported to be involved in PI3K-Akt-mTOR, and its role in DDR remains unclear. Methylation-specific PCR, siRNA, flow cytometry, esophageal cancer cell lines, and xenograft mouse models were used to examine the role of NRN1 in esophageal cancer. The expression of NRN1 is frequently repressed by promoter region methylation in human esophageal cancer cells. NRN1 was methylated in 50.4% (510/1012) of primary esophageal cancer samples. NRN1 methylation is associated significantly with age (P < .001), tumor size (P < .01), TNM stage (P < .001), differentiation (P < .001) and alcohol consumption (P < .05). We found that NRN1 methylation is an independent prognostic factor for poor 5-y overall survival (P < .001). NRN1 inhibits colony formation, cell proliferation, migration, and invasion, and induces apoptosis and G1/S arrest in esophageal cancer cells. NRN1 suppresses KYSE150 and KYSE30 cells xenografts growth in nude mice. PI3K signaling is reported to activate ATR signaling by targeting CHK1, the downstream component of ATR. By analyzing the synthetic efficiency of NVP-BEZ235 (PI3K inhibitor) and VE-822 (an ATR inhibitor), we found that the combination of NVP-BEZ235 and VE-822 increased cytotoxicity in NRN1 methylated esophageal cancer cells, as well as KYSE150 cell xenografts. In conclusion, NRN1 suppresses esophageal cancer growth both in vitro and in vivo by inhibiting PI3K-Akt-mTOR signaling. Methylation of NRN1 is a novel synthetic lethal marker for PI3K-Akt-mTOR and ATR inhibitors in human esophageal cancer.

Indexed as

DNA RepairAdultAgedAged, 80 and overAge FactorsAlcohol DrinkingAnimalsApoptosisAtaxia Telangiectasia Mutated ProteinsBiomarkers, TumorCell Line, TumorCell MovementCell ProliferationDNA DamageEsophageal NeoplasmsEsophageal Squamous Cell CarcinomaAtaxia Telangiectasia Mutated ProteinsATR protein, humanBiomarkers, TumorGPI-Linked ProteinsMTOR protein, humanNeuropeptidesNRN1 protein, humanPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsprexasertibProto-Oncogene Proteins c-aktPyrazinesPyrazolesTOR Serine-Threonine KinasesATR inhibitorDNA damage repairDNA methylationNRN1PI3K signaling

Identifiers

PMID33931924
PMCPMC8253287
OpenAlexW3158082317

What OpenQuestion holds

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LicenceCC BY-NC
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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.