Evidence map›Paper›PMID 26252352›Full record

ArticleEpigenetics2015

Low expression of ITIH5 in adenocarcinoma of the lung is associated with unfavorable patients' outcome.

Magnus Mathias Dötsch, Vera Kloten, Martin Schlensog, Timon Heide, Till Braunschweig, Jürgen Veeck, Iver Petersen, Ruth Knüchel, Edgar Dahl

Open access · bronzeAbstract read
In one paragraph

Article in Epigenetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

26 citing papers in PubMed, 37 citations in OpenAlex.

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  11. The Inter-α-Trypsin Inhibitor Family: Versatile Molecules in Biology and Pathology.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2020
    Review
  12. International journal of molecular sciences · 2020
    Article
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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

9 authors at 2 institutions in 2 countries.

Magnus Mathias Dötscha Institute of Pathology; Medical Faculty of the RWTH Aachen University ; Aachen , Germany.
Vera Klotena Institute of Pathology; Medical Faculty of the RWTH Aachen University ; Aachen , Germany.
Martin Schlensoga Institute of Pathology; Medical Faculty of the RWTH Aachen University ; Aachen , Germany.
Timon Heidea Institute of Pathology; Medical Faculty of the RWTH Aachen University ; Aachen , Germany.
Till Braunschweiga Institute of Pathology; Medical Faculty of the RWTH Aachen University ; Aachen , Germany.
Jürgen Veeckb RWTH Centralized Biomaterial Bank at the Institute of Pathology; Medical Faculty of the RWTH Aachen University ; Aachen , Germany.
Iver Petersenc Institute of Pathology; University Hospital Jena ; Jena , Germany.
Ruth Knüchela Institute of Pathology; Medical Faculty of the RWTH Aachen University ; Aachen , Germany.
Edgar Dahla Institute of Pathology; Medical Faculty of the RWTH Aachen University ; Aachen , Germany.
Taipei Institute of Pathology · TWRWTH Aachen University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inter-α-trypsin inhibitor heavy chain 5 (ITIH5) is supposed to be involved in extracellular matrix stability and thus may play a key role in the inhibition of tumor progression. The current study is the first to analyze in depth ITIH5 expression and DNA methylation, as well as its potential clinical impact in non-small-cell lung carcinoma (NSCLC). We examined ITIH5 mRNA expression in tumor and adjacent normal lung tissue specimens of NSCLC patients. In addition, methylation frequency of the ITIH5 promoter was investigated using methylation-specific PCR and pyrosequencing. Significance of our data was validated by independent data sets from The Cancer Genome Atlas and the Kaplan-Meier Plotter platform. Furthermore, ITIH5 protein expression was evaluated by immunohistochemistry utilizing a tissue microarray with 385 distinct lung tissue samples. Based on our tissue collections, ITIH5 mRNA expression was significantly decreased in NSCLC compared to normal lung tissue in line with an increased methylation frequency in lung cancer tissue. Independent TCGA data confirmed significant expression loss of ITIH5 in lung cancer concordant with ITIH5 promoter hypermethylation in NSCLC. Of interest, low ITIH5 mRNA expression was particularly found in the magnoid and squamoid ADC expression subtype, concordant with an unfavorable patients' outcome in squamoid as well as tobacco smoking ADC patients. In conclusion, ITIH5 may be a novel putative tumor suppressor gene in NSCLC with a potential molecular significance in the squamoid ADC subtype and further clinical impact for risk stratification of adenocarcinoma patients. In addition, ITIH5 may serve as a novel biomarker for prognosis of tobacco smoking ADC patients.

Indexed as

AdenocarcinomaAdenocarcinoma of LungAdultAgedBiomarkers, TumorCarcinoma, Non-Small-Cell LungDisease-Free SurvivalDNA MethylationFemaleGene Expression Regulation, NeoplasticHumansKaplan-Meier EstimateLung NeoplasmsMaleMiddle AgedPrognosisBiomarkers, TumorITIH5 protein, humanProteinase Inhibitory Proteins, SecretoryRNA, MessengerbiomarkerDNA-methylation, non-small-cell lung cancer (NSCLC)gene signatureintrinsic expression subtypeITIH5

Identifiers

PMID26252352
PMCPMC4844218
OpenAlexW2193264251

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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.