Evidence map›Paper›PMID 24825593›Full record

ArticleDigestive diseases and sciences2014

DNA methylation of microRNA-124a is a potential risk marker of colitis-associated cancer in patients with ulcerative colitis.

Yuko Ueda, Takayuki Ando, Sohachi Nanjo, Toshikazu Ushijima, Toshiro Sugiyama

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Article in Digestive diseases and sciences, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 54 citations in OpenAlex.

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  8. Dysregulation of miR-1-3p: An Early Event in Colitis-Associated Dysplasia.International journal of molecular sciences · 2022
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  11. Effects ofFrontiers in pharmacology · 2022
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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

5 authors at 2 institutions in 3 countries.

Yuko UedaDepartment of Gastroenterology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan, i-yuko@umail.plala.or.jp.
Takayuki Ando
Sohachi Nanjo
Toshikazu Ushijima
Toshiro Sugiyama
University of Toyama · JPEpigenomics (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundColitis-associated cancer (CAC) is the serious complication of ulcerative colitis (UC), and molecular markers to evaluate the individual risk are required. MicroRNA-124a (miR - 124a) is known to have tumor-suppressive function and be methylation-silenced during exposure to chronic inflammation.

aimWe analyzed whether higher methylation levels of miR-124a genes correlated with the higher epidemiologic risk of CAC development in UC patients.

methodsForty UC patients without CAC, four patients with CAC or dysplasia, eight sporadic colorectal cancer (S-CRC) patients, and 12 healthy volunteers (HV) were studied. Methylation status of miR-124a genes (miR-124a-1, -2, and -3) was analyzed by methylation-specific polymerase chain reaction (MSP), and methylation levels were quantified by real-time MSP. Expression of cyclin-dependent kinase 6 (CDK6), a target of miR-124a, was analyzed by immunohistochemistry.

resultsThree miR-124a genes were methylated in all neoplastic tissues (CAC, dysplasia, and S-CRC), and CDK6 was highly expressed in those tissues. Regarding disease extent, mean methylation levels of miR-124a-3 in HV, non-pancolitis, and pancolitis were 2.0, 5.3, and 12.3%, respectively, and were significantly higher in pancolitis than in HV (p < 0.01). Regarding disease duration, mean methylation levels in short-term and long-standing UC patients were 2.5 and 13.2%, respectively. Long-standing UC patients had significantly higher methylation levels than HV (p < 0.01). Moreover, UC patients with both pancolitis and long-standing had 7.4-fold higher methylation levels than those without these risk factors.

conclusionsMiR-124a genes are methylated during carcinogenesis in UC patients. The methylation level of miR-124a-3 is a promising marker for estimating individual risk for CAC.

Indexed as

DNA MethylationAdultAgedAnimalsBiomarkersCell Line, TumorColitis, UlcerativeColonic NeoplasmsEpigenesis, GeneticFemaleGene Expression RegulationHumansImmunohistochemistryMaleMicroRNAsMiddle AgedBiomarkersMicroRNAsMIRN124 microRNA, human

Identifiers

PMID24825593
OpenAlexW2038727310

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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.