Evidence map›Paper›PMID 18622385›Full record

ArticleModern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc2008

Global DNA hypomethylation in intratubular germ cell neoplasia and seminoma, but not in nonseminomatous male germ cell tumors.

Georges J Netto, Yasutomo Nakai, Masashi Nakayama, Sana Jadallah, Antoun Toubaji, Norio Nonomura, Roula Albadine, Jessica L Hicks, Jonathan I Epstein, Srinivasan Yegnasubramanian and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 9% 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

59 citing papers in PubMed, 2 syntheses or guidelines pooled it, 119 citations in OpenAlex.

  1. Association Study between Polymorphisms in DNA Methylation-Related Genes and Testicular Germ Cell Tumor Risk.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2022
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  13. The regulation mechanisms and the Lamarckian inheritance property of DNA methylation in animals.Mammalian genome : official journal of the International Mammalian Genome Society · 2021
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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

12 authors at 4 institutions in 2 countries.

Georges J NettoDepartment of Pathology, Division of Genitourinary Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21231-1000, USA.
Yasutomo Nakai
Masashi Nakayama
Sana Jadallah
Antoun Toubaji
Norio Nonomura
Roula Albadine
Jessica L Hicks
Jonathan I Epstein
Srinivasan Yegnasubramanian
William G Nelson
Angelo M De Marzo
Johns Hopkins Medicine · USJohns Hopkins University · USOsaka University · JPSidney Kimmel Comprehensive Cancer Center · US

Funding

TRANSGENIC MODELS FOR PROSTATE CANCER AND AUTOIMMUNITYP50CA058236 · NCI · JOHNS HOPKINS UNIVERSITY · PI DENMEADE, SAMUEL R · 1992 to 2020
$43.9M
NCI NIH HHS P50 CA058236
6 · The paper itself

Abstract

Alterations in methylation of CpG dinucleotides at the 5 position of deoxycytidine residues (5(m)C) are a hallmark of cancer cells, including testicular germ cell tumors. Virtually all testicular germ cell tumors are believed to be derived from intratubular germ cell neoplasia unclassified (IGCNU), which is thought to arise from primordial germ cells. Prior studies revealed that seminomas contain reduced levels of global DNA methylation as compared with nonseminomatous germ cell tumors. Smiraglia et al have proposed a model whereby seminomas arise from IGCNU cells derived from primordial germ cells that have undergone 5(m)C erasure, and nonseminomas arise from IGCNU cells derived from primordial germ cells that have already undergone de novo methylation after the original erasure of methylation and contain normal 5(m)C levels. Yet the methylation status of IGCNU has not been determined previously. We used immunohistochemical staining against 5(m)C to evaluate global methylation in IGCNU and associated invasive testicular germ cell tumors. Strikingly, staining for 5(m)C was undetectable (or markedly reduced) in the majority of IGCNU and seminomas, yet there was robust staining in nonseminomatous germ cell tumors. The lack of staining for 5(m)C in IGCNU and seminomas was also found in mixed germ cell tumors containing both seminomatous and nonseminomatous components. Lack of 5(m)C staining was not related to a lack of the maintenance methyltransferase (DNA methyltransferase 1) protein. We conclude that testicular germ cell tumors are derived in most cases from IGCNU cells that have undergone developmentally programmed 5(m)C erasure and that the degree of subsequent de novo methylation is most closely related to the differentiation state of the neoplastic cells. That is, IGCNU cells and seminoma cells remain unmethylated, whereas all other histological types appear to arise after de novo methylation.

Indexed as

DNA MethylationGene SilencingAdolescentAdultChildChild, PreschoolDeoxycytidineDNA, NeoplasmFluorescent Antibody Technique, DirectHumansInfantMaleMiddle AgedRepressor ProteinsSeminiferous TubulesSeminomaDeoxycytidineDMAP1 protein, humanDNA, NeoplasmRepressor Proteins

Identifiers

PMID18622385
PMCPMC4086525
OpenAlexW1968494280

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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.