Evidence map›Paper›PMID 26294099›Full record

ArticleDiagnostic pathology2015

Inactivation of tumor suppressor gene pten in early and advanced gallbladder cancer.

Iván Roa, Gonzalo de Toro, Fernanda Fernández, Anakaren Game, Sergio Muñoz, Xabier de Aretxabala, Milind Javle

Open access · goldAbstract read
In one paragraph

Article in Diagnostic pathology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Reviewing cancer's biology: an eclectic approach.Journal of the Egyptian National Cancer Institute · 2021
    Review
  5. Review
  6. Review
  7. Article
  8. Contemporary Tailored Oncology Treatment of Biliary Tract Cancers.Gastroenterology research and practice · 2019
    Review
  9. Article
  10. Article
  11. Article
  12. Epigenetic Downregulation of PTEN in Gallbladder Cancer.Journal of gastrointestinal cancer · 2017
    Article
  13. Article
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

7 authors at 4 institutions in 2 countries.

Iván RoaCreative Bioscience Santiago, Avenida Del Valle Norte 857. Oficina 102, Ciudad Empresarial, Huechuraba Santiago, 8580702, Chile. ivanroaesterio@gmail.com.
Gonzalo de ToroServicio de Anatomía Patológica Hospital de Puerto Montt, Puerto Montt, Chile. gdetoro@gmail.com.
Fernanda FernándezCentro Diagnóstico Histopatologia-Citopatologia, Temuco, Chile.
Anakaren GameFacultad de Medicina, Universidad del Desarrollo, Santiago, Chile. a.renee.game@gmail.com.
Sergio MuñozDepartamento de Salud Pública, CIGES, Facultad de Medicina, Universidad de la Frontera, Temuco, Chile. sergio.munoz.n@ufrontera.cl.
Xabier de AretxabalaDepartamento de Cirugía, Clínica Alemana, Santiago, Chile. xau1003@gmail.com.
Milind JavleJavle, Milind UT-MD Anderson Cancer Center, Houston, TX, USA. mjavle@mdanderson.org.
Clínica Alemana · CLThe University of Texas MD Anderson Cancer Center · USUniversidad de La Frontera · CLUniversidad del Desarrollo · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPTEN is a tumor suppressor gene that regulates the PTEN/PI3k/AKT/mTOR pathway, which is frequently altered in human cancers including gallbladder cancer (GBC). To determine the frequency of PTEN expression in GBC and to establish its relation to clinical and morphological parameters and survival in GBC.

methodsThe immunohistochemical expression of PTEN was studied in 108 GBC. All the cases included areas of non-tumor mucosa adjacent to the tumor.

resultsThe group was comprised of 108 patients, 91 women (84.3%) and 17 men (15.7%) with an average age of 65.2 years (SD ± 12.3 years). Thirty-five cases (33%) were early carcinomas (EC) and the remaining 73 (67%) were advanced cases (AC). All the internal controls were positive (moderate or intense in 96.3%). Only in three AC (4.1%) was there a complete absence of PTEN immunohistochemical expression. There were no significant differences in relation between PTEN expression and tumor infiltration or degree of differentiation. The three patients with PTEN inactivation died before 10 months; however, the other patients with AC had a survival of 53% at 10 months. DISCUSSION: Loss of PTEN expression was observed in 4.1% of the advanced GBC. All the patients with this alteration died before 10 months. PTEN inactivation could be a rare event, but with a poor prognosis in advanced GBC.

Indexed as

AdenocarcinomaAdultAgedAged, 80 and overBiomarkers, TumorFemaleGallbladder NeoplasmsGenes, Tumor SuppressorHumansImmunohistochemistryKaplan-Meier EstimateMaleMiddle AgedPrognosisPTEN PhosphohydrolaseBiomarkers, TumorPTEN PhosphohydrolasePTEN protein, human

Identifiers

PMID26294099
PMCPMC4546176
OpenAlexW1823362496

What OpenQuestion holds

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LicenceCC BY
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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.