Evidence map›Paper›PMID 19040416›Full record

ArticleJournal of cellular and molecular medicine2009

Clinical significance of TTF-1 protein expression and TTF-1 gene amplification in lung adenocarcinoma.

Justine A Barletta, Sven Perner, A John Iafrate, Beow Y Yeap, Barbara A Weir, Laura A Johnson, Bruce E Johnson, Matthew Meyerson, Mark A Rubin, William D Travis and 2 more

Open access · greenAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
4.6field-weighted citation impact, top 6% 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

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 107 citations in OpenAlex.

  1. International association for the study of lung cancer/american thoracic society/european respiratory society international multidisciplinary classification of lung adenocarcinoma.Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer · 2011
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  19. 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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3 more citing papers are in PubMed but not listed here.

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 1 country.

Justine A BarlettaDepartment of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
Sven PernerDepartment of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
A John IafrateDepartment of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Beow Y YeapDepartment of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Barbara A WeirMedical Oncology.
Laura A JohnsonDepartment of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
Bruce E JohnsonMedical Oncology.
Matthew MeyersonMedical Oncology.
Mark A RubinDepartment of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
William D TravisDepartment of Pathology, Memorial-Sloan Kettering Cancer Center, New York, NY, USA.
Massimo LodaDepartment of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
Lucian R ChirieacDepartment of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
Brigham and Women's Hospital · USDana-Farber Cancer Institute · USHarvard University · USMemorial Sloan Kettering Cancer Center · US

Funding

Translational studies of Hsp90 inhibitors in NSCLCP50CA090578 · NCI · DANA-FARBER CANCER INST · PI YEAP, BEOW Y · 2008 to 2012
$11.4M
Molecular and Genetic Analysis of Lung Cancer SurvivalR01CA092824 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI CHRISTIANI, DAVID C · 2002 to 2013
$5.9M
SPORE in Lung CancerP20CA090578 · NCI · DANA-FARBER CANCER INSTITUTE · PI JOHNSON, BRUCE E. · 2003 to 2007
$5.1M
GENETIC SUSCEPTIBILITY TO LUNG CANCERR01CA074386 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI CHRISTIANI, DAVID C · 1997 to 2008
$4.8M
NCI NIH HHS CA074386NCI NIH HHS CA092824NCI NIH HHS CA90578NCI NIH HHS P20 CA090578NCI NIH HHS P50 CA090578NCI NIH HHS R01 CA074386NCI NIH HHS R01 CA092824
6 · The paper itself

Abstract

The majority of lung adenocarcinomas express the lineage-specific thyroid transcription factor-1 (TTF-1). We recently reported that in a subset of lung adenocarcinomas the TTF-1 gene is amplified. Although the prognostic significance of TTF-1 expression has been previously investigated, the significance of TTF-1 amplification has not been established. We studied 89 consecutive patients with lung adenocarcinomas treated by surgery at Brigham and Women's Hospital between 1997 and 1999 and performed immunohistochemical analysis for TTF-1 expression and fluorescence in situ hybridization for TTF-1 amplification. We investigated associations between clinical-pathological characteristics, TTF-1 expression, TTF-1 amplification and overall survival. TTF-1 expression was categorized as high (48%), low (24%) or absent (28%). TTF-1 was amplified in 7% of cases. Patients with adenocarcinomas with low or high TTF-1 expression had a significantly better outcome than those with absent TTF-1 expression (median overall survival times of 72.4, 77.8 and 30.5 months, respectively, P = 0.002). In contrast, patients with adenocarcinomas with TTF-1 expression had a worse outcome if TTF-1 was amplified (median overall survival time 39.5 versus 87.5 months). In multivariate analysis, improved overall survival was independently predicted by TTF-1 expression in combination with no TTF-1 amplification (P < 0.001). In patients with lung adenocarcinoma, TTF-1 expression is a predictor of good outcome. Patients with no TTF-1 expression or TTF-1 expression and TTF-1 gene amplification tend to have a significantly worse prognosis than patients with TTF-1 expression and no TTF-1 gene amplification.

Indexed as

Gene AmplificationAdenocarcinomaAdultAgedAged, 80 and overFemaleHumansImmunohistochemistryIn Situ Hybridization, FluorescenceLung NeoplasmsMaleMiddle AgedNuclear ProteinsThyroid Nuclear Factor 1Transcription FactorsNKX2-1 protein, humanNuclear ProteinsThyroid Nuclear Factor 1Transcription Factors

Identifiers

PMID19040416
PMCPMC2830395
OpenAlexW1976697496

What OpenQuestion holds

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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.