ArticleJournal of molecular medicine (Berlin, Germany)2008
Loss of imprinting of IGF2 and H19, loss of heterozygosity of IGF2R and CTCF, and Helicobacter pylori infection in laryngeal squamous cell carcinoma.
Article in Journal of molecular medicine (Berlin, Germany), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 20 citations in OpenAlex.
- DIAPH2 gene polymorphisms and laryngeal cancer risk in men.Journal of cancer research and clinical oncology · 2024Article
- The role of imprinting genes' loss of imprints in cancers and their clinical implications.Frontiers in oncology · 2024Review
- LaryngealMicroorganisms · 2021Article
- The Neglected Insulin: IGF-II, a Metabolic Regulator with Implications for Diabetes, Obesity, and Cancer.Cells · 2019Review
- UreA and cagA genes of Helicobacter pylori in Egyptian patients with laryngeal squamous cell carcinoma and benign laryngeal polyps: a cohort study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2016Observational
- Possible prognostic value of BORIS transcript variants ratio in laryngeal squamous cell carcinomas - a pilot study.Pathology oncology research : POR · 2014Article
- Association between infection of virulence cagA gene Helicobacter pylori and laryngeal squamous cell carcinoma.Medical science monitor : international medical journal of experimental and clinical research · 2013Article
- Article
- Loss of imprinting of IGF2 and the epigenetic progenitor model of cancer.American journal of stem cells · 2012Article
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Imprinting analyses of IGF2 and H19, loss of heterozygosity (LOH) analyses of IGF2R and CTCF and Helicobacter pylori detection, were performed on 35 human laryngeal squamous cell carcinomas (LSCC). Forty-six percent of the tumors were heterozygous for IGF2, and 54% were informative for the H19. Biallelic expression of IGF2 was observed in 33% (5 out of 15) of the tumors and in 27% (4 out of 15) of adjacent non-tumorous laryngeal tissues. H19 loss of imprinting (LOI) was observed in 24% (4 out of 17) of the tumors. For IGF2R and CTCF, 71% (25 out of 35) and 50% (17/34), respectively, of the samples were heterozygous, and LOH was detected in 12% (3 out of 25) and 6% (1 out of 17), respectively, of the tumors. H. pylori was found in 26% (9/35) of these tumors. Among them, four were informative for the imprinting analysis. The presence of H. pylori had no effect on IGF2/H19 imprinting. Only the H. pylori detection was further broadened with an additional 47 laryngeal tumors, resulting in a total final positivity of close to 16% (13 out of 82). This study represents the largest comprehensive IGF2/H19 imprinting study done to date on well-defined samples of human laryngeal carcinomas and corresponding non-tumorous tissue. For the first time, the analyses of IGF2/H19 imprinting have been broadened with LOH analyses of IGF2R and CTCF, with both of these genes acting as modulators of IGF2 and H19 activity. Although there were indications that H. pylori may be present in LSCC, we are the first to show its presence in LSCC by two direct techniques: Giemsa staining and nested-PCR.
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