Evidence map›Paper›PMID 24743427›Full record

ArticlePloS one2014

The relationship between TTF-1 expression and EGFR mutations in lung adenocarcinomas.

Wan Shanzhi, Han Yiping, Huang Ling, Zheng Jianming, Li Qiang

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
4.8field-weighted citation impact, top 5% 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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 55 citations in OpenAlex.

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  20. TTF-1 and EGFR expression are related to EGFR mutation in lung adenocarcinoma.International journal of clinical and experimental pathology · 2018
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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 1 country.

Wan ShanzhiThe Respiratory Department, Shanghai Changhai Hospital, SMMU, Shanghai, China.
Han YipingThe Respiratory Department, Shanghai Changhai Hospital, SMMU, Shanghai, China.
Huang LingThe pathology department, Shanghai Changhai Hospital, SMMU, Shanghai, China.
Zheng JianmingThe pathology department, Shanghai Changhai Hospital, SMMU, Shanghai, China.
Li QiangThe Respiratory Department, Shanghai Changhai Hospital, SMMU, Shanghai, China.
Changhai Hospital · CNSecond Military Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo explore the relationship between TTF-1 and EGFR mutations in lung adenocarcinoma tissues to guide clinical treatment timely and effectively. MATERIALS AND

methodswe collected 664 tissue samples from patients with histologically confirmed lung adenocarcinoma from May 2010 to April 2013. All tumor tissues were collected prior to administering therapy. TTF-1 was detected by immunohistochemistry and EGFR mutations by DNA direct sequencing. Finally, the correlation between TTF-1 expression and the presence of EGFR mutations was analyzed using χ2 test or Fisher's exact test with SPSS software version 18.0.

resultsOf the 664 lung adenocarcinoma tissue samples, 18 were partially positive for TTF-1 (+-), and 636 were positive for TTF-1 (+) resulting in a total positive rate of 98.49% (+,+-)(including partial positive). In only 10 cases was the TTF-1 negative (-); the negative rate was 1.51%. There were 402 cases without an EGFR mutation and 262 cases with EGFR mutations; the rate of mutations was 39.46%. The location of the EGFR mutation was exon 19 for 121 cases resulting in a mutation rate in exon 19 of 18.22%. The location of the EGFR mutation was exon 21 for 141 cases resulting in a mutation rate in exon 21 of 21.23%. Exon 18 and 20 detected by DNA direct sequencing no mutations.A Fisher's exact test was used to determine the correlation between EGFR mutations and TTF-1 expression.for the whole, TTF-1 positive expression(including partial positive) has correlation with EGFR mutations (p<0.001),especially for Exon 21 expression,the correlation is significant (p = 0.008).

conclusionIn lung adenocarcinomas, positive and partial positive TTF-1 expression has a significant positive correlation with EGFR mutations(exon 19 and 21). In clinical practice, TTF-1 expression combine with EGFR mutations, especially exon 21 mutation can guide clinical treatment timely for lung adenocarcinomas.

Indexed as

AdenocarcinomaAdenocarcinoma of LungAdultAgedAged, 80 and overDNA-Binding ProteinsErbB ReceptorsExonsFemaleHumansImmunohistochemistryLung NeoplasmsMaleMiddle AgedMutationTranscription FactorsDNA-Binding ProteinsErbB ReceptorsTranscription FactorsTTF1 protein, human

Identifiers

PMID24743427
PMCPMC3990660
OpenAlexW1972387812

What OpenQuestion holds

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LicenceCC BY
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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.