Cited by 22Cholangiocarcinoma and Gallbladder Cancer StudiesGallbladder and Bile Duct DisordersPediatric Hepatobiliary Diseases and Treatments

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

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Roa, Iván, de Toro, Gonzalo, Fernández, Fernanda, Game, Anakaren, Muñoz, Sergio, de Aretxabala, Xabier, Javle, Milind·2015·Diagnostic Pathology

Abstract

BACKGROUND: PTEN 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. METHODS: The immunohistochemical expression of PTEN was studied in 108 GBC. All the cases included areas of non-tumor mucosa adjacent to the tumor. RESULTS: The 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.

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Authors
Roa, I., de Toro, G., Fernández, F., Game, A., Muñoz, S., de Aretxabala, X., & Javle, M.
Affiliations
  • Universidad del Desarrollo (CL)
  • Universidad de La Frontera (CL)
  • The University of Texas MD Anderson Cancer Center (US)
Venue
Diagnostic Pathology
Published
2015-08-21
Volume
10
Issue
1
Pages
148-148
ISSN
1746-1596 (ISSN-L)
OpenAlex
W1823362496
Cited by
22
References
36
Citations by year
2025: 2 · 2023: 5 · 2021: 4 · 2020: 1 · 2019: 3 · 2018: 3 · 2017: 4
FWCI
2.35
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Diagnostic Pathology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Omeka S (Universidad de La Frontera) (submittedVersion, cc-by-nc-nd)
Funders
Fondecyt (1120208)
Topics
  • Health Sciences › Medicine › Surgery › Cholangiocarcinoma and Gallbladder Cancer Studies
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Gallbladder and Bile Duct Disorders
  • Health Sciences › Medicine › Surgery › Pediatric Hepatobiliary Diseases and Treatments
Keywords
PTEN, tumor suppressor inactivation, gallbladder cancer, prognosis, survival, tumor differentiation, tumor infiltration
MeSH terms
Adenocarcinoma, Adult, Aged, Aged, 80 and over, Female, Gallbladder Neoplasms, Humans, Immunohistochemistry, Male, Middle Aged, Prognosis, Biomarkers, Tumor, Genes, Tumor Suppressor, PTEN Phosphohydrolase, Kaplan-Meier Estimate

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